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Tillman, P Glynn, Grabarczyk, Erin E, Balusu, Rammohan, Kesheimer, Katelyn, Blaauw, Brett, Sial, Ashfaq, Vinson, Edgar, and Cottrell, Ted E
Journal of Insect Science . Mar2023, Vol. 23 Issue 2, p1-12. 12p.
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BROWN marmorated stink bug, STINKBUGS, PARASITISM, PREDATION, and HEMIPTERA
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Stink bugs, including Halyomorpha halys (Stål) and Nezara viridula (L.), are agricultural pests that feed on fruit in a variety of crops. Monitoring predation and parasitism of stink bug egg masses furthers our understanding of potential biological control tactics. However, best practices for laboratory and field assessments of parasitism and predation of egg masses require further attention. We carried out a series of laboratory and field experiments to test whether parasitism and predation for three types of sentinel H. halys egg masses, fresh, frozen, and refrigerated, varied in agricultural commodities. In addition, we asked if predation and parasitism differed between sentinel and naturally occurring H. halys and N. viridula egg masses in soybean. In the laboratory, more H. halys eggs were parasitized by Trissolcus euschisti (Ashmead) (Hymenoptera: Scelionidae) if they were frozen or refrigerated compared to fresh eggs. Similarly, in the field, parasitism was higher for frozen egg masses than fresh. In 2018 and 2019, H. halys natural egg masses had higher parasitism and lower predation compared to sentinel egg masses in soybean. In a paired field test during 2020 and 2021, there was no difference in parasitism between H. halys natural and sentinel eggs, but much higher incidence of parasitism was detected in natural N. viridula egg masses than sentinel eggs. Collecting natural egg masses is the best methodology for field assessment of parasitism of stink bug egg masses; however, if natural egg masses are not easily available, deploying refrigerated sentinel egg masses is a good alternative. [ABSTRACT FROM AUTHOR]
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Tillman, P. Glynn, Cottrell, Ted E., and Buntin, G. David
- Florida Entomologist. March, 2019, Vol. 102 Issue 1, p222, 5 p.
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Tillman, P. Glynn, Kesheimer, Katelyn A., Hirsch, Katherine L., and Grabarczyk, Erin E.
- Florida Entomologist. March, 2023, Vol. 106 Issue 1, p16, 6 p.
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Barreby E, Strunz B, Nock S, Naudet L, Shen JX, Johansson H, Sönnerborg I, Ma J, Urgard E, Pallett LJ, Hu Y, Fardellas A, Azzimato V, Vankova A, Levi L, Morgantini C, Maini MK, Stål P, Rosshart SP, Coquet JM, Nowak G, Näslund E, Lauschke VM, Ellis E, Björkström NK, Chen P, and Aouadi M
Nature metabolism [Nat Metab] 2023 Jul; Vol. 5 (7), pp. 1188-1203. Date of Electronic Publication: 2023 Jul 06.
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Humans, Mice, Animals, Obesity metabolism, Myeloid Cells metabolism, Stress, Physiological, and Non-alcoholic Fatty Liver Disease metabolism
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Although multiple populations of macrophages have been described in the human liver, their function and turnover in patients with obesity at high risk of developing non-alcoholic fatty liver disease (NAFLD) and cirrhosis are currently unknown. Herein, we identify a specific human population of resident liver myeloid cells that protects against the metabolic impairment associated with obesity. By studying the turnover of liver myeloid cells in individuals undergoing liver transplantation, we find that liver myeloid cell turnover differs between humans and mice. Using single-cell techniques and flow cytometry, we determine that the proportion of the protective resident liver myeloid cells, denoted liver myeloid cells 2 (LM2), decreases during obesity. Functional validation approaches using human 2D and 3D cultures reveal that the presence of LM2 ameliorates the oxidative stress associated with obese conditions. Our study indicates that resident myeloid cells could be a therapeutic target to decrease the oxidative stress associated with NAFLD.
(© 2023. The Author(s).)
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Ganapathi M, Matsuoka LS, March M, Li D, Brokamp E, Benito-Sanz S, White SM, Lachlan K, Ahimaz P, Sewda A, Bastarache L, Thomas-Wilson A, Stoler JM, Bramswig NC, Baptista J, Stals K, Demurger F, Cogne B, Isidor B, Bedeschi MF, Peron A, Amiel J, Zackai E, Schacht JP, Iglesias AD, Morton J, Schmetz A, Seidel V, Lucia S, Baskin SM, Thiffault I, Cogan JD, Gordon CT, Chung WK, Bowdin S, and Bhoj E
European journal of human genetics : EJHG [Eur J Hum Genet] 2023 Jul 27. Date of Electronic Publication: 2023 Jul 27.
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Nuclear receptor subfamily 2 group F member 2 (NR2F2 or COUP-TF2) encodes a transcription factor which is expressed at high levels during mammalian development. Rare heterozygous Mendelian variants in NR2F2 were initially identified in individuals with congenital heart disease (CHD), then subsequently in cohorts of congenital diaphragmatic hernia (CDH) and 46,XX ovotesticular disorders/differences of sexual development (DSD); however, the phenotypic spectrum associated with pathogenic variants in NR2F2 remains poorly characterized. Currently, less than 40 individuals with heterozygous pathogenic variants in NR2F2 have been reported. Here, we review the clinical and molecular details of 17 previously unreported individuals with rare heterozygous NR2F2 variants, the majority of which were de novo. Clinical features were variable, including intrauterine growth restriction (IUGR), CHD, CDH, genital anomalies, DSD, developmental delays, hypotonia, feeding difficulties, failure to thrive, congenital and acquired microcephaly, dysmorphic facial features, renal failure, hearing loss, strabismus, asplenia, and vascular malformations, thus expanding the phenotypic spectrum associated with NR2F2 variants. The variants seen were predicted loss of function, including a nonsense variant inherited from a mildly affected mosaic mother, missense and a large deletion including the NR2F2 gene. Our study presents evidence for rare, heterozygous NR2F2 variants causing a highly variable syndrome of congenital anomalies, commonly associated with heart defects, developmental delays/intellectual disability, dysmorphic features, feeding difficulties, hypotonia, and genital anomalies. Based on the new and previous cases, we provide clinical recommendations for evaluating individuals diagnosed with an NR2F2-associated disorder.
(© 2023. The Author(s), under exclusive licence to European Society of Human Genetics.)
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Chen W, Rehsi P, Thompson K, Yeo M, Stals K, He L, Schimmel P, Chrzanowska-Lightowlers ZMA, Wakeling E, Taylor RW, and Kuhle B
Molecular genetics and metabolism [Mol Genet Metab] 2023 Jul 24; Vol. 140 (3), pp. 107657. Date of Electronic Publication: 2023 Jul 24.
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FARS2 encodes the mitochondrial phenylalanyl-tRNA synthetase (mtPheRS), which is essential for charging mitochondrial (mt-) tRNA Phe with phenylalanine for use in intramitochondrial translation. Many biallelic, pathogenic FARS2 variants have been described previously, which are mostly associated with two distinct clinical phenotypes; an early onset epileptic mitochondrial encephalomyopathy or a later onset spastic paraplegia. In this study, we report on a patient who presented at 3 weeks of age with tachypnoea and poor feeding, which progressed to severe metabolic decompensation with lactic acidosis and seizure activity followed by death at 9 weeks of age. Rapid trio whole exome sequencing identified compound heterozygous FARS2 variants including a pathogenic exon 2 deletion on one allele and a rare missense variant (c.593G > T, p.(Arg198Leu)) on the other allele, necessitating further work to aid variant classification. Assessment of patient fibroblasts demonstrated severely decreased steady-state levels of mtPheRS, but no obvious defect in any components of the oxidative phosphorylation system. To investigate the potential pathogenicity of the missense variant, we determined its high-resolution crystal structure, demonstrating a local structural destabilization in the catalytic domain. Moreover, the R198L mutation reduced the thermal stability and impaired the enzymatic activity of mtPheRS due to a lower binding affinity for tRNA Phe and a slower turnover rate. Together these data confirm the pathogenicity of this FARS2 variant in causing early-onset mitochondrial epilepsy.
Competing Interests: Declaration of Competing Interest The authors have no conflicts of interest to disclose.
(Copyright © 2023 Elsevier Inc. All rights reserved.)
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Valenti L, Corradini E, Adams LA, Aigner E, Alqahtani S, Arrese M, Bardou-Jacquet E, Bugianesi E, Fernandez-Real JM, Girelli D, Hagström H, Henninger B, Kowdley K, Ligabue G, McClain D, Lainé F, Miyanishi K, Muckenthaler MU, Pagani A, Pedrotti P, Pietrangelo A, Prati D, Ryan JD, Silvestri L, Spearman CW, Stål P, Tsochatzis EA, Vinchi F, Zheng MH, and Zoller H
Nature reviews. Endocrinology [Nat Rev Endocrinol] 2023 May; Vol. 19 (5), pp. 299-310. Date of Electronic Publication: 2023 Feb 17.
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Humans, Ferritins genetics, Ferritins metabolism, Iron metabolism, Iron Overload diagnosis, and Iron Overload genetics
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Hyperferritinaemia is a common laboratory finding that is often associated with metabolic dysfunction and fatty liver. Metabolic hyperferritinaemia reflects alterations in iron metabolism that facilitate iron accumulation in the body and is associated with an increased risk of cardiometabolic and liver diseases. Genetic variants that modulate iron homeostasis and tissue levels of iron are the main determinants of serum levels of ferritin in individuals with metabolic dysfunction, raising the hypothesis that iron accumulation might be implicated in the pathogenesis of insulin resistance and the related organ damage. However, validated criteria for the non-invasive diagnosis of metabolic hyperferritinaemia and the staging of iron overload are still lacking, and there is no clear evidence of a benefit for iron depletion therapy. Here, we provide an overview of the literature on the relationship between hyperferritinaemia and iron accumulation in individuals with metabolic dysfunction, and on the associated clinical outcomes. We propose an updated definition and a provisional staging system for metabolic hyperferritinaemia, which has been agreed on by a multidisciplinary global panel of expert researchers. The goal is to foster studies into the epidemiology, genetics, pathophysiology, clinical relevance and treatment of metabolic hyperferritinaemia, for which we provide suggestions on the main unmet needs, optimal design and clinically relevant outcomes.
(© 2023. Springer Nature Limited.)
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Guimier A, de Pontual L, Braddock SR, Torti E, Pérez-Jurado LA, Muñoz-Cabello P, Arumí M, Monaghan KG, Lee H, Wang LK, Pluym ID, Lynch SA, Stals K, Ellard S, Muller C, Houyel L, Cohen L, Lyonnet S, Bajolle F, Amiel J, and Gordon CT
Human molecular genetics [Hum Mol Genet] 2023 Jan 13; Vol. 32 (3), pp. 353-356.
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Humans, Heart Defects, Congenital, and Truncus Arteriosus, Persistent
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Thomson, Scott A., Pyle, Richard L., Ahyong, Shane T., Alonso-Zarazaga, Miguel, Ammirati, Joe, Araya, Juan Francisco, Ascher, John S., Audisio, Tracy Lynn, Azevedo-Santos, Valter M., Bailly, Nicolas, Baker, William J., Balke, Michael, Barclay, Maxwell V. L., Barrett, Russell L., Benine, Ricardo C., Bickerstaff, James R. M., Bouchard, Patrice, Bour, Roger, Bourgoin, Thierry, Boyko, Christopher B., Breure, Abraham S. H., Brothers, Denis J., Byng, James W., Campbell, David, Ceriaco, Luis M. P., Cernak, Istvan, Cerretti, Pierfilippo, Chang, Chih-Han, Cho, Soowon, Copus, Joshua M., Costello, Mark J., Cseh, Andras, Csuzdi, Csaba, Culham, Alastair, D'Elia, Guillermo, d'Udekem d'Acoz, Cedric, Daneliya, Mikhail E., Dekker, Rene, Dickinson, Edward C., Dickinson, Timothy A., van Dijk, Peter Paul, Dijkstra, Klaas-Douwe B., Dima, Balint, Dmitriev, Dmitry A., Duistermaat, Leni, Dumbacher, John P., Eiserhardt, Wolf L., Ekrem, Torbjorn, Evenhuis, Neal L., Faille, Arnaud, Fernandez-Triana, Jose L., Fiesler, Emile, Fishbein, Mark, Fordham, Barry G., Freitas, Andre V. L., Friol, Natalia R., Fritz, Uwe, Froslev, Tobias, Funk, Vicki A., Gaimari, Stephen D., Garbino, Guilherme S. T., Garraffoni, Andre R. S., Geml, Jozsef, Gill, Anthony C., Gray, Alan, Grazziotin, Felipe G., Greenslade, Penelope, Gutierrez, Eliecer E., Harvey, Mark S., Hazevoet, Cornelis J., He, Kai, He, Xiaolan, Helfer, Stephan, Helgen, Kristofer M., van Heteren, Anneke H., Hita Garcia, Francisco, Holstein, Norbert, Horvath, Margit K., Hovenkamp, Peter H., Hwang, Wei Song, Hyvonen, Jaakko, Islam, Melissa B., Iverson, John B., Ivie, Michael A., Jaafar, Zeehan, Jackson, Morgan D., Jayat, J. Pablo, Johnson, Norman F., Kaiser, Hinrich, Klitgard, Bente B., Knapp, Daniel G., Kojima, Jun-ichi, Koljalg, Urmas, Kontschan, Jeno, Krell, Frank-Thorsten, Krisai-Greilhuber, Irmgard, Kullander, Sven, Latella, Leonardo, Lattke, John E., Lencioni, Valeria, Lewis, Gwilym P., Lhano, Marcos G., Lujan, Nathan K., Luksenburg, Jolanda A., Mariaux, Jean, Marinho-Filho, Jader, Marshall, Christopher J., Mate, Jason F., McDonough, Molly M., Michel, Ellinor, Miranda, Vitor F. O., Mitroiu, Mircea-Dan, Molinari, Jesus, Monks, Scott, Moore, Abigail J., Moratelli, Ricardo, Muranyi, David, Nakano, Takafumi, Nikolaeva, Svetlana, Noyes, John, Ohl, Michael, Oleas, Nora H., Orrell, Thomas, Pall-Gergely, Barna, Pape, Thomas, Papp, Viktor, Parenti, Lynne R., Patterson, David, Pavlinov, Igor Ya., Pine, Ronald H., Poczai, Peter, Prado, Jefferson, Prathapan, Divakaran, Rabeler, Richard K., Randall, John E., Rheindt, Frank E., Rhodin, Anders G. J., Rodriguez, Sara M., Rogers, D. Christopher, Roque, Fabio de O., Rowe, Kevin C., Ruedas, Luis A., Salazar-Bravo, Jorge, Salvador, Rodrigo B., Sangster, George, Sarmiento, Carlos E., Schigel, Dmitry S., Schmidt, Stefan, Schueler, Frederick W., Segers, Hendrik, Snow, Neil, Souza-Dias, Pedro G. B., Stals, Riaan, Stenroos, Soili, Stone, R. Douglas, Sturm, Charles F., Stys, Pavel, Teta, Pablo, Thomas, Daniel C., Timm, Robert M., Tindall, Brian J., Todd, Jonathan A., Triebel, Dagmar, Valdecasas, Antonio G., Vizzini, Alfredo, Vorontsova, Maria S., de Vos, Jurriaan M., Wagner, Philipp, Watling, Les, Weakley, Alan, Welter-Schultes, Francisco, Whitmore, Daniel, Wilding, Nicholas, Will, Kipling, Williams, Jason, Wilson, Karen, Winston, Judith E., Wuster, Wolfgang, Yanega, Douglas, Yeates, David K., Zaher, Hussam, Zhang, Guanyang, Zhang, Zhi-Qiang, and Zhou, Hong-Zhang
- PLoS Biology. March 14, 2018, Vol. 16 Issue 3, pe2005075.
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den Heijer, Casper D J, van Liere, G A F S, Hoebe, C J P A, van Bergen, J E A M, Cals, J W L, Stals, F S, and Dukers-Muijrers, N H T M
- Sexually Transmitted Infections. May, 2016, Vol. 92 Issue 3, p211, 7 p.
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Groeneweg, Stefan, van Geest, Ferdy S, Abaci, Ayhan, Alcantud, Alberto, Ambegaonkar, Gautam P, Armour, Christine M, Bakhtiani, Priyanka, Barca, Diana, Bertini, Enrico S, van Beynum, Ingrid M, Brunetti-Pierri, Nicola, Bugiani, Marianna, Cappa, Marco, Cappuccio, Gerarda, Castellotti, Barbara, Castiglioni, Claudia, Chatterjee, Krishna, de Coo, Irenaeus F M, Coutant, Régis, Craiu, Dana, Crock, Patricia, DeGoede, Christian, Demir, Korcan, Dica, Alice, Dimitri, Paul, Dolcetta-Capuzzo, Anna, Dremmen, Marjolein H G, Dubey, Rachana, Enderli, Anina, Fairchild, Jan, Gallichan, Jonathan, George, Belinda, Gevers, Evelien F, Hackenberg, Annette, Halász, Zita, Heinrich, Bianka, Huynh, Tony, Klosowska, Anna, van der Knaap, Marjo S, van der Knoop, Marieke M, Konrad, Daniel, Koolen, David A, Krude, Heiko, Lawson-Yuen, Amy, Lebl, Jan, Linder-Lucht, Michaela, Lorea, Cláudia F, Lourenço, Charles M, Lunsing, Roelineke J, Lyons, Greta, Malikova, Jana, Mancilla, Edna E, McGowan, Anne, Mericq, Veronica, Lora, Felipe M, Moran, Carla, Müller, Katalin E, Oliver-Petit, Isabelle, Paone, Laura, Paul, Praveen G, Polak, Michel, Porta, Francesco, Poswar, Fabiano O, Reinauer, Christina, Rozenkova, Klara, Menevse, Tuba S, Simm, Peter, Simon, Anna, Singh, Yogen, Spada, Marco, van der Spek, Jet, Stals, Milou A M, Stoupa, Athanasia, Subramanian, Gopinath M, Tonduti, Davide, Turan, Serap, den Uil, Corstiaan A, Vanderniet, Joel, van der Walt, Adri, Wémeau, Jean-Louis, Wierzba, Jolante, de Wit, Marie-Claire Y, Wolf, Nicole I, Wurm, Michael, Zibordi, Federica, Zung, Amnon, Zwaveling-Soonawala, Nitash, and Visser, W Edward
- The Lancet Diabetes & Endocrinology. July, 2020, Vol. 8 Issue 7, p594.
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Acebes-Doria, Angelita L., Agnello, Arthur M., Alston, Diane G., Andrews, Heather, Beers, Elizabeth H., Bergh, J. Christopher, Bessin, Ric, Blaauw, Brett R., Buntin, G. David, Burkness, Eric C., Chen, Shi, Cottrell, Ted E., Daane, Kent M., Fann, Lauren E., Fleischer, Shelby J., Guedot, Christelle, Gut, Larry J., Hamilton, George C., Hilton, Richard, Hoelmer, Kim A., Hutchison, William D., Jentsch, Peter, Krawczyk, Greg, Kuhar, Thomas P., Lee, Jana C., Milnes, Joshua M., Nielsen, Anne L., Patel, Dilani K., Short, Brent D., Sial, Ashfaq A., Spears, Lori R., Tatman, Kathy, Toews, Michael D., Walgenbach, James D., Welty, Celeste, Wiman, Nik G., van Zoeren, Janet, and Leskey, Tracy C.
- Journal of Economic Entomology. February, 2020, Vol. 113 Issue 1, p159, 13 p.
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Yu, F., Stål, P., Thornell, L.-E., and Larsson, L.
- Journal of Muscle Research and Cell Motility. August, 2002, Vol. 23 Issue 4, p317, 10 p.
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14. Evidence for low muscle capillary supply as a pathogenic factor in chronic compartment syndrome [2010]
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Edmundsson, D., Toolanen, G., Thornell, L-E., and Stal, P.
- Scandinavian Journal of Medicine and Science in Sports. Dec 2010, Vol. 20 Issue 6, p805, 9 p.
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Pezzini, Daniela T., DiFonzo, Christina D., Finke, Deborah L., Hunt, Thomas E., Knodel, Janet J., Krupke, Christian H., McCornack, Brian, Michel, Andrew P., Philips, Christopher R., Varenhorst, Adam J., Wright, Robert J., and Koch, Robert L.
- Journal of Economic Entomology. August, 2019, Vol. 112 Issue 4, p1722, 10 p.
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Radio FC, Pang K, Ciolfi A, Levy MA, Hernández-García A, Pedace L, Pantaleoni F, Liu Z, de Boer E, Jackson A, Bruselles A, McConkey H, Stellacci E, Lo Cicero S, Motta M, Carrozzo R, Dentici ML, McWalter K, Desai M, Monaghan KG, Telegrafi A, Philippe C, Vitobello A, Au M, Grand K, Sanchez-Lara PA, Baez J, Lindstrom K, Kulch P, Sebastian J, Madan-Khetarpal S, Roadhouse C, MacKenzie JJ, Monteleone B, Saunders CJ, Jean Cuevas JK, Cross L, Zhou D, Hartley T, Sawyer SL, Monteiro FP, Secches TV, Kok F, Schultz-Rogers LE, Macke EL, Morava E, Klee EW, Kemppainen J, Iascone M, Selicorni A, Tenconi R, Amor DJ, Pais L, Gallacher L, Turnpenny PD, Stals K, Ellard S, Cabet S, Lesca G, Pascal J, Steindl K, Ravid S, Weiss K, Castle AMR, Carter MT, Kalsner L, de Vries BBA, van Bon BW, Wevers MR, Pfundt R, Stegmann APA, Kerr B, Kingston HM, Chandler KE, Sheehan W, Elias AF, Shinde DN, Towne MC, Robin NH, Goodloe D, Vanderver A, Sherbini O, Bluske K, Hagelstrom RT, Zanus C, Faletra F, Musante L, Kurtz-Nelson EC, Earl RK, Anderlid BM, Morin G, van Slegtenhorst M, Diderich KEM, Brooks AS, Gribnau J, Boers RG, Finestra TR, Carter LB, Rauch A, Gasparini P, Boycott KM, Barakat TS, Graham JM Jr, Faivre L, Banka S, Wang T, Eichler EE, Priolo M, Dallapiccola B, Vissers LELM, Sadikovic B, Scott DA, Holder JL Jr, and Tartaglia M
American journal of human genetics [Am J Hum Genet] 2021 Mar 04; Vol. 108 (3), pp. 502-516. Date of Electronic Publication: 2021 Feb 16.
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Adolescent, Autism Spectrum Disorder genetics, Autism Spectrum Disorder pathology, Child, Child, Preschool, Chromosome Deletion, Chromosome Disorders physiopathology, DNA Methylation genetics, Epigenesis, Genetic genetics, Female, Haploinsufficiency genetics, Humans, Intellectual Disability genetics, Intellectual Disability physiopathology, Male, Neurodevelopmental Disorders genetics, Neurodevelopmental Disorders physiopathology, Phenotype, Young Adult, Chromosome Disorders genetics, Chromosomes, Human, Pair 1 genetics, Chromosomes, Human, X genetics, DNA-Binding Proteins genetics, and RNA-Binding Proteins genetics
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Deletion 1p36 (del1p36) syndrome is the most common human disorder resulting from a terminal autosomal deletion. This condition is molecularly and clinically heterogeneous. Deletions involving two non-overlapping regions, known as the distal (telomeric) and proximal (centromeric) critical regions, are sufficient to cause the majority of the recurrent clinical features, although with different facial features and dysmorphisms. SPEN encodes a transcriptional repressor commonly deleted in proximal del1p36 syndrome and is located centromeric to the proximal 1p36 critical region. Here, we used clinical data from 34 individuals with truncating variants in SPEN to define a neurodevelopmental disorder presenting with features that overlap considerably with those of proximal del1p36 syndrome. The clinical profile of this disease includes developmental delay/intellectual disability, autism spectrum disorder, anxiety, aggressive behavior, attention deficit disorder, hypotonia, brain and spine anomalies, congenital heart defects, high/narrow palate, facial dysmorphisms, and obesity/increased BMI, especially in females. SPEN also emerges as a relevant gene for del1p36 syndrome by co-expression analyses. Finally, we show that haploinsufficiency of SPEN is associated with a distinctive DNA methylation episignature of the X chromosome in affected females, providing further evidence of a specific contribution of the protein to the epigenetic control of this chromosome, and a paradigm of an X chromosome-specific episignature that classifies syndromic traits. We conclude that SPEN is required for multiple developmental processes and SPEN haploinsufficiency is a major contributor to a disorder associated with deletions centromeric to the previously established 1p36 critical regions.
(Copyright © 2021 American Society of Human Genetics. Published by Elsevier Inc. All rights reserved.)
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Helman G, Mendes MI, Nicita F, Darbelli L, Sherbini O, Moore T, Derksen A, Amy Pizzino, Carrozzo R, Torraco A, Catteruccia M, Aiello C, Goffrini P, Figuccia S, Smith DEC, Hadzsiev K, Hahn A, Biskup S, Brösse I, Kotzaeridou U, Gauck D, Grebe TA, Elmslie F, Stals K, Gupta R, Bertini E, Thiffault I, Taft RJ, Schiffmann R, Brandl U, Haack TB, Salomons GS, Simons C, Bernard G, van der Knaap MS, Vanderver A, and Husain RA
Genetics in medicine : official journal of the American College of Medical Genetics [Genet Med] 2021 Dec; Vol. 23 (12), pp. 2352-2359. Date of Electronic Publication: 2021 Aug 27.
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Cross-Sectional Studies, Disease Progression, Humans, Phenotype, Leukoencephalopathies diagnostic imaging, and Leukoencephalopathies genetics
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Purpose: Recent reports of individuals with cytoplasmic transfer RNA (tRNA) synthetase-related disorders have identified cases with phenotypic variability from the index presentations. We sought to assess phenotypic variability in individuals with AARS1-related disease.
Methods: A cross-sectional survey was performed on individuals with biallelic variants in AARS1. Clinical data, neuroimaging, and genetic testing results were reviewed. Alanyl tRNA synthetase (AlaRS) activity was measured in available fibroblasts.
Results: We identified 11 affected individuals. Two phenotypic presentations emerged, one with early infantile-onset disease resembling the index cases of AARS1-related epileptic encephalopathy with deficient myelination (n = 7). The second (n = 4) was a later-onset disorder, where disease onset occurred after the first year of life and was characterized on neuroimaging by a progressive posterior predominant leukoencephalopathy evolving to include the frontal white matter. AlaRS activity was significantly reduced in five affected individuals with both early infantile-onset and late-onset phenotypes.
Conclusion: We suggest that variants in AARS1 result in a broader clinical spectrum than previously appreciated. The predominant form results in early infantile-onset disease with epileptic encephalopathy and deficient myelination. However, a subgroup of affected individuals manifests with late-onset disease and similarly rapid progressive clinical decline. Longitudinal imaging and clinical follow-up will be valuable in understanding factors affecting disease progression and outcome.
(© 2021. The Author(s), under exclusive licence to the American College of Medical Genetics and Genomics.)
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Mascarenhas, J., Virtgaym, E., Stal, M., Blacklock, H., Gerds, A. T., Mesa, R., and Ganly, P.
- Annals of Hematology. August, 2018, Vol. 97 Issue 8, p1369, 6 p.
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Jirstrom, K., Ryden, L., Anagnostaki, L., Nordenskjold, B., Stal, O., Thorstenson, S., Chebil, G., Jonsson, P.-E., Ferno, M., and Landberg, G.
- Journal of Clinical Pathology. Nov 2005, Vol. 58 Issue 11, p1135, 8 p.
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Zhu, Andrew X, Finn, Richard S, Edeline, Julien, Cattan, Stephane, Ogasawara, Sadahisa, Palmer, Daniel, Verslype, Chris, Zagonel, Vittorina, Fartoux, Laetitia, Vogel, Arndt, Sarker, Debashis, Verset, Gontran, Chan, Stephen L, Knox, Jennifer, Daniele, Bruno, Webber, Andrea L, Ebbinghaus, Scot W, Ma, Junshui, Siegel, Abby B, Cheng, Ann-Lii, Kudo, Masatoshi, Alistar, Angela, Asselah, Jamil, Blanc, Jean-Frederic, Borbath, Ivan, Cannon, Timothy, Chung, Ki, Cohn, Allen, Cosgrove, David P, Damjanov, Nevena, Gupta, Mukul, Karino, Yoshivasu, Karwal, Mark, Kaubisch, Andreas, Kelley, Robin, Van Laethem, Jena-Luc, Larson, Timothy, Lee, James, Li, Daneng, Manhas, Atisha, Manji, Gulam Abbas, Numata, Kazushi, Parsons, Benjamin, Paulson, Andrew S., Pinto, Carmine, Ramirez, Robert, Ratnam, Suresh, Rizell, Magnus, Rosmorduc, Olivier, Sada, Yvonne, Sasaki, Yutaka, Stal, Per I, Strasser, Simone, Trojan, Joerg, Vaccaro, Gina, Van Vlierberghe, Hans, Weiss, Alan, Weiss, Karl-Heinz, and Yamashita, Tatsuya
- Lancet Oncology. July, 2018, Vol. 19 Issue 7, p940.
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Barish S, Barakat TS, Michel BC, Mashtalir N, Phillips JB, Valencia AM, Ugur B, Wegner J, Scott TM, Bostwick B, Murdock DR, Dai H, Perenthaler E, Nikoncuk A, van Slegtenhorst M, Brooks AS, Keren B, Nava C, Mignot C, Douglas J, Rodan L, Nowak C, Ellard S, Stals K, Lynch SA, Faoucher M, Lesca G, Edery P, Engleman KL, Zhou D, Thiffault I, Herriges J, Gass J, Louie RJ, Stolerman E, Washington C, Vetrini F, Otsubo A, Pratt VM, Conboy E, Treat K, Shannon N, Camacho J, Wakeling E, Yuan B, Chen CA, Rosenfeld JA, Westerfield M, Wangler M, Yamamoto S, Kadoch C, Scott DA, and Bellen HJ
American journal of human genetics [Am J Hum Genet] 2020 Dec 03; Vol. 107 (6), pp. 1096-1112. Date of Electronic Publication: 2020 Nov 23.
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Adolescent, Animals, Child, Child, Preschool, Drosophila Proteins genetics, Drosophila melanogaster, Female, Genes, Dominant, Genetic Variation, Haploinsufficiency, Humans, Infant, Male, Microscopy, Confocal, Neuroglia metabolism, Neurons metabolism, Protein Binding, Zebrafish, Zebrafish Proteins genetics, Chromosomal Proteins, Non-Histone genetics, Developmental Disabilities genetics, Mutation, Missense, Phenotype, and Tumor Suppressor Proteins genetics
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SWI/SNF-related intellectual disability disorders (SSRIDDs) are rare neurodevelopmental disorders characterized by developmental disability, coarse facial features, and fifth digit/nail hypoplasia that are caused by pathogenic variants in genes that encode for members of the SWI/SNF (or BAF) family of chromatin remodeling complexes. We have identified 12 individuals with rare variants (10 loss-of-function, 2 missense) in the BICRA (BRD4 interacting chromatin remodeling complex-associated protein) gene, also known as GLTSCR1, which encodes a subunit of the non-canonical BAF (ncBAF) complex. These individuals exhibited neurodevelopmental phenotypes that include developmental delay, intellectual disability, autism spectrum disorder, and behavioral abnormalities as well as dysmorphic features. Notably, the majority of individuals lack the fifth digit/nail hypoplasia phenotype, a hallmark of most SSRIDDs. To confirm the role of BICRA in the development of these phenotypes, we performed functional characterization of the zebrafish and Drosophila orthologs of BICRA. In zebrafish, a mutation of bicra that mimics one of the loss-of-function variants leads to craniofacial defects possibly akin to the dysmorphic facial features seen in individuals harboring putatively pathogenic BICRA variants. We further show that Bicra physically binds to other non-canonical ncBAF complex members, including the BRD9/7 ortholog, CG7154, and is the defining member of the ncBAF complex in flies. Like other SWI/SNF complex members, loss of Bicra function in flies acts as a dominant enhancer of position effect variegation but in a more context-specific manner. We conclude that haploinsufficiency of BICRA leads to a unique SSRIDD in humans whose phenotypes overlap with those previously reported.
(Copyright © 2020 American Society of Human Genetics. All rights reserved.)
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Zhi-Hui ZHAN, Akane MATSUO, and Chul-Sa KIM
Journal of Pesticide Science . 2016, Vol. 41 Issue 4, p163-166. 4p. 5 Black and White Photographs, 1 Graph.
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STIMULANTS, LEAFHOPPERS, RICE diseases & pests, BIOLOGICAL assay, and METHANOL
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A crude rice extract caused a higher probing response than did the control in the green rice leafhopper, Nephotettix nigropictus. Bioassay-guided separation led to the isolation of four active compounds, isoscoparin 2"-O-glucoside, isoscoparin 2"-O-(6"'-(E)-feruloyl)glucoside, isoscoparin 2"-O-(6"'-(E)-p-coumaroyl)glucoside, and isovitexin 2"-O-(6"'- (E)-feruloyl)glucoside from ODS 40% methanol in water faction. Each of the compounds, or any combination without one of the four compounds, caused weaker probing responses than the crude rice extract. The activity was recovered only when all the compounds were combined. [ABSTRACT FROM AUTHOR]
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23. The harlequin ladybird, Harmonia axyridis: global perspectives on invasion history and ecology [2016]
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Roy, Helen E., Brown, Peter M. J., Adriaens, Tim, Berkvens, Nick, Borges, Isabel, Clusella-Trullas, Susana, Comont, Richard F., Clercq, Patrick, Eschen, Rene, Estoup, Arnaud, Evans, Edward W., Facon, Benoit, Gardiner, Mary M., Gil, Artur, Grez, Audrey A., Guillemaud, Thomas, Haelewaters, Danny, Herz, Annette, Honek, Alois, Howe, Andy G., Hui, Cang, Hutchison, William D., Kenis, Marc, Koch, Robert L., Kulfan, Jan, Lawson Handley, Lori, Lombaert, Eric, Loomans, Antoon, Losey, John, Lukashuk, Alexander O., Maes, Dirk, Magro, Alexandra, Murray, Katie M., Martin, Gilles San, Martinkova, Zdenka, Minnaar, Ingrid A., Nedved, OldAich, Orlova-Bienkowskaja, Marina J., Osawa, Naoya, Rabitsch, Wolfgang, Ravn, Hans Peter, Rondoni, Gabriele, Rorke, Steph L., Ryndevich, Sergey K., Saethre, May-Guri, Sloggett, John J., Soares, Antonio Onofre, Stals, Riaan, Tinsley, Matthew C., Vandereycken, Axel, Wielink, Paul, Viglasova, Sandra, Zach, Peter, Zakharov, Ilya A., Zaviezo, Tania, and Zhao, Zihua
- Biological Invasions. April, 2016, Vol. 18 Issue 4, p997, 48 p.
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Lindqvist, Catarina, Holmer, Magnus, Hagström, Hannes, Petersson, Sven, Tillander, Veronika, Brismar, Torkel B., and Stål, Per
- Nutrition. June, 2023, Vol. 110
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25. INSECTOS PERJUDICIALES Y BENÉFICOS EN CULTIVO DE CÁRTAMO EN LA REGIÓN PAMPEANA SEMIÁRIDA. [2018]
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Florencia, Fritz, Ramonda, Fernando, and Baudino, Estela M.
Semiárida. Revista de la Facultad de Agronomía UNLPam . 2018, Vol. 28 Issue 2, p35-44. 10p.
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The work's aims were to identify both harmful and helpful insect species for safflower crop and to study their distribution along time in relation to plant phenological state. The insect species identified as harmful were: Uroleucon jaceae L., Capitophorus elaeagni, Frankliniella occidentalis P., Dichelops furcatus (F.), Athaumasthus haematicus (Stál), Nezara viridula (L.), Nysius simulans Stál, Edessa meditabunda (F.), Piezodorus guildinii (W.), Helicoverpa zea B., Epicauta adspersa K., Spodoptera frugiperda (J. E. Smith), Chauliognathus scriptus (Germ.), Pantomorus auripes H. and Rachiplusia nu (G.). Regarding aphids, their highest density was observed at the beginning of November, when crop was in the state of branching, with invasion mainly of the upper third of plants: leaves, young shoots and flower heads. Among all harmful true bugs found in the crop, red bug - Athaumastus haematicus (Stál)- comprised the highest proportion and was detected before aphids attacks, when stem elongation of plants was just beginning. As for beneficial species, the six insects detected in sufflower crop were Hippodamia convergens G., Eriopis connexa G., Harmonia axyridis (P.), Nabis sp., Ophion sp. and Apis melifera L., besides various spider species. The coccinellids- Hippodamia convergens; Eriopis connexa and Harmonia axydiris performed as the main natural control agents at crop. KE [ABSTRACT FROM AUTHOR]
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Kiebooms, R., Zojer, E., Markart, P., Resel, R., De Schepper, L., Vanderzande, D., Gelan, J., Stals, L., Tasch, S., and Leising, G.
- Synthetic Metals. June, 1999, Vol. 102 Issue 1-3, p997.
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BUENO, V. H. P., CALIXTO, A. M., MONTES, F. C., and VAN LENTEREN, J. C.
Israel Journal of Entomology . 2018, Vol. 48 Issue 2, p1-22. 22p.
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MIRIDAE, EGGS as food, PREDATORY animals, TEMPERATURE effect, and MEDITERRANEAN flour moth
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Three Neotropical predators Campyloneuropsis infumatus (Carvalho), Engytatus varians (Distant) and Macrolophus basicornis (Stål) (Hemiptera: Miridae) are considered in Brazil as potential biological control agents of Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) and other tomato pests. This study evaluated the effect of five constant temperatures (16, 20, 24, 28 and 32°C, all ±1°C) on the reproduction, population growth and longevity of these predatory mirids. Adults freshly emerged from nymphs reared at each temperature, were separated in couples and kept in 1.7 l glass pots with tobacco plant seedlings (Nicotiana tabacum L., cv. TNN) as oviposition substrate and ad libitum Ephestia kuehniella (Zeller) (Lepidoptera: Pyralidae) eggs as food. The shortest pre-oviposition and the longest oviposition periods were observed at 24°C and 28°C in all three mirid species. At 24°C all three species showed the highest daily and total fecundities. The population growth parameters represented by the intrinsic rate of increase (rm) and the finite rate of increase (λ) were highest at 24°C and 28°C, and the net reproductive rate (R0) was highest at 24°C for all three species. Longevities of both males and females were longest at 24°C and 28°C in all three mirids. The size of tibia and adult weight in the three species were greatest at 20°C and 28°C, respectively. Differences in values for all above variables were small and often statistically non-significant for the three mirid species at the same temperature. Also, not a single significant difference was found for any of the growth parameters at each of the temperatures, including rm. The results indicate that temperatures in the range from 24-28°C are best for reproduction and population growth of C. infumatus, E. varians and M. basicornis. The factitious prey E. kuehniella is an excellent food source and tobacco plants provide a good rearing substrate for these mirids. The obtained results may assist in developing a mass rearing method for C. infumatus, E. varians and M. basicornis, in determining optimal timing and frequency of mirid releases in the crop, and in determining whether they are active at the temperature spectrum observed during tomato production in the field or greenhouse. [ABSTRACT FROM AUTHOR]
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Younossi ZM, Ratziu V, Loomba R, Rinella M, Anstee QM, Goodman Z, Bedossa P, Geier A, Beckebaum S, Newsome PN, Sheridan D, Sheikh MY, Trotter J, Knapple W, Lawitz E, Abdelmalek MF, Kowdley KV, Montano-Loza AJ, Boursier J, Mathurin P, Bugianesi E, Mazzella G, Olveira A, Cortez-Pinto H, Graupera I, Orr D, Gluud LL, Dufour JF, Shapiro D, Campagna J, Zaru L, MacConell L, Shringarpure R, Harrison S, and Sanyal AJ
Lancet (London, England) [Lancet] 2019 Dec 14; Vol. 394 (10215), pp. 2184-2196. Date of Electronic Publication: 2019 Dec 05.
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Administration, Oral, Biomarkers analysis, Biopsy, Chenodeoxycholic Acid administration dosage, Chenodeoxycholic Acid therapeutic use, Double-Blind Method, Female, Humans, Liver Function Tests, Male, Middle Aged, Chenodeoxycholic Acid analogs derivatives, and Non-alcoholic Fatty Liver Disease drug therapy
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Background: Non-alcoholic steatohepatitis (NASH) is a common type of chronic liver disease that can lead to cirrhosis. Obeticholic acid, a farnesoid X receptor agonist, has been shown to improve the histological features of NASH. Here we report results from a planned interim analysis of an ongoing, phase 3 study of obeticholic acid for NASH.
Methods: In this multicentre, randomised, double-blind, placebo-controlled study, adult patients with definite NASH, non-alcoholic fatty liver disease (NAFLD) activity score of at least 4, and fibrosis stages F2-F3, or F1 with at least one accompanying comorbidity, were randomly assigned using an interactive web response system in a 1:1:1 ratio to receive oral placebo, obeticholic acid 10 mg, or obeticholic acid 25 mg daily. Patients were excluded if cirrhosis, other chronic liver disease, elevated alcohol consumption, or confounding conditions were present. The primary endpoints for the month-18 interim analysis were fibrosis improvement (≥1 stage) with no worsening of NASH, or NASH resolution with no worsening of fibrosis, with the study considered successful if either primary endpoint was met. Primary analyses were done by intention to treat, in patients with fibrosis stage F2-F3 who received at least one dose of treatment and reached, or would have reached, the month 18 visit by the prespecified interim analysis cutoff date. The study also evaluated other histological and biochemical markers of NASH and fibrosis, and safety. This study is ongoing, and registered with ClinicalTrials.gov, NCT02548351, and EudraCT, 20150-025601-6.
Findings: Between Dec 9, 2015, and Oct 26, 2018, 1968 patients with stage F1-F3 fibrosis were enrolled and received at least one dose of study treatment; 931 patients with stage F2-F3 fibrosis were included in the primary analysis (311 in the placebo group, 312 in the obeticholic acid 10 mg group, and 308 in the obeticholic acid 25 mg group). The fibrosis improvement endpoint was achieved by 37 (12%) patients in the placebo group, 55 (18%) in the obeticholic acid 10 mg group (p=0·045), and 71 (23%) in the obeticholic acid 25 mg group (p=0·0002). The NASH resolution endpoint was not met (25 [8%] patients in the placebo group, 35 [11%] in the obeticholic acid 10 mg group [p=0·18], and 36 [12%] in the obeticholic acid 25 mg group [p=0·13]). In the safety population (1968 patients with fibrosis stages F1-F3), the most common adverse event was pruritus (123 [19%] in the placebo group, 183 [28%] in the obeticholic acid 10 mg group, and 336 [51%] in the obeticholic acid 25 mg group); incidence was generally mild to moderate in severity. The overall safety profile was similar to that in previous studies, and incidence of serious adverse events was similar across treatment groups (75 [11%] patients in the placebo group, 72 [11%] in the obeticholic acid 10 mg group, and 93 [14%] in the obeticholic acid 25 mg group).
Interpretation: Obeticholic acid 25 mg significantly improved fibrosis and key components of NASH disease activity among patients with NASH. The results from this planned interim analysis show clinically significant histological improvement that is reasonably likely to predict clinical benefit. This study is ongoing to assess clinical outcomes.
Funding: Intercept Pharmaceuticals.
(Copyright © 2019 Elsevier Ltd. All rights reserved.)
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29. Diagnosis of lethal or prenatal-onset autosomal recessive disorders by parental exome sequencing. [2018]
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Stals KL, Wakeling M, Baptista J, Caswell R, Parrish A, Rankin J, Tysoe C, Jones G, Gunning AC, Lango Allen H, Bradley L, Brady AF, Carley H, Carmichael J, Castle B, Cilliers D, Cox H, Deshpande C, Dixit A, Eason J, Elmslie F, Fry AE, Fryer A, Holder M, Homfray T, Kivuva E, McKay V, Newbury-Ecob R, Parker M, Savarirayan R, Searle C, Shannon N, Shears D, Smithson S, Thomas E, Turnpenny PD, Varghese V, Vasudevan P, Wakeling E, Baple EL, and Ellard S
Prenatal diagnosis [Prenat Diagn] 2018 Jan; Vol. 38 (1), pp. 33-43. Date of Electronic Publication: 2017 Dec 03.
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Female, Genes, Recessive, Humans, Male, Pregnancy, Congenital Abnormalities genetics, Genetic Diseases, Inborn diagnosis, Parents, Prenatal Diagnosis methods, and Exome Sequencing
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Objective: Rare genetic disorders resulting in prenatal or neonatal death are genetically heterogeneous, but testing is often limited by the availability of fetal DNA, leaving couples without a potential prenatal test for future pregnancies. We describe our novel strategy of exome sequencing parental DNA samples to diagnose recessive monogenic disorders in an audit of the first 50 couples referred.
Method: Exome sequencing was carried out in a consecutive series of 50 couples who had 1 or more pregnancies affected with a lethal or prenatal-onset disorder. In all cases, there was insufficient DNA for exome sequencing of the affected fetus. Heterozygous rare variants (MAF < 0.001) in the same gene in both parents were selected for analysis. Likely, disease-causing variants were tested in fetal DNA to confirm co-segregation.
Results: Parental exome analysis identified heterozygous pathogenic (or likely pathogenic) variants in 24 different genes in 26/50 couples (52%). Where 2 or more fetuses were affected, a genetic diagnosis was obtained in 18/29 cases (62%). In most cases, the clinical features were typical of the disorder, but in others, they result from a hypomorphic variant or represent the most severe form of a variable phenotypic spectrum.
Conclusion: We conclude that exome sequencing of parental samples is a powerful strategy with high clinical utility for the genetic diagnosis of lethal or prenatal-onset recessive disorders. © 2017 The Authors Prenatal Diagnosis published by John Wiley & Sons Ltd.
(© 2017 The Authors Prenatal Diagnosis published by John Wiley & Sons Ltd.)
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Bojmar L, Karlsson E, Ellegård S, Olsson H, Björnsson B, Hallböök O, Larsson M, Stål O, and Sandström P
PloS one [PLoS One] 2013 Dec 20; Vol. 8 (12), pp. e84815. Date of Electronic Publication: 2013 Dec 20 (Print Publication: 2013).
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Biomarkers, Tumor metabolism, Breast Neoplasms genetics, Breast Neoplasms metabolism, Cadherins metabolism, Colorectal Neoplasms genetics, Colorectal Neoplasms metabolism, Epithelial-Mesenchymal Transition genetics, Gene Expression Regulation, Neoplastic genetics, Homeodomain Proteins metabolism, Humans, Immunohistochemistry, In Situ Hybridization, Laser Capture Microdissection, Liver Neoplasms secondary, Real-Time Polymerase Chain Reaction, Reverse Transcriptase Polymerase Chain Reaction, Survival Analysis, Transcription Factors metabolism, Zinc Finger E-box-Binding Homeobox 1, Breast Neoplasms physiopathology, Colorectal Neoplasms physiopathology, Epithelial-Mesenchymal Transition physiology, Gene Expression Regulation, Neoplastic physiology, Liver Neoplasms metabolism, MicroRNAs metabolism, and Signal Transduction physiology
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The role of the epithelial-mesenchymal transition (EMT) in cancer has been studied extensively in vitro, but involvement of the EMT in tumorigenesis in vivo is largely unknown. We investigated the potential of microRNAs as clinical markers and analyzed participation of the EMT-associated microRNA-200-ZEB-E-cadherin pathway in cancer progression. Expression of the microRNA-200 family was quantified by real-time RT-PCR analysis of fresh-frozen and microdissected formalin-fixed paraffin-embedded primary colorectal tumors, normal colon mucosa, and matched liver metastases. MicroRNA expression was validated by in situ hybridization and after in vitro culture of the malignant cells. To assess EMT as a predictive marker, factors considered relevant in colorectal cancer were investigated in 98 primary breast tumors from a treatment-randomized study. Associations between the studied EMT-markers were found in primary breast tumors and in colorectal liver metastases. MicroRNA-200 expression in epithelial cells was lower in malignant mucosa than in normal mucosa, and was also decreased in metastatic compared to non-metastatic colorectal cancer. Low microRNA-200 expression in colorectal liver metastases was associated with bad prognosis. In breast cancer, low levels of microRNA-200 were related to reduced survival and high expression of microRNA-200 was predictive of benefit from radiotheraphy. MicroRNA-200 was associated with ER positive status, and inversely correlated to HER2 and overactivation of the PI3K/AKT pathway, that was associated with high ZEB1 mRNA expression. Our findings suggest that the stability of microRNAs makes them suitable as clinical markers and that the EMT-related microRNA-200-ZEB-E-cadherin signaling pathway is connected to established clinical characteristics and can give useful prognostic and treatment-predictive information in progressive breast and colorectal cancers.
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Von Walden F, Gantelius S, Liu C, Borgström H, Björk L, Gremark O, Stål P, Nader GA, and PontéN E
Muscle & nerve [Muscle Nerve] 2018 Aug; Vol. 58 (2), pp. 277-285. Date of Electronic Publication: 2018 May 24.
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Adolescent, Cell Count, Child, Collagen metabolism, Cytokines biosynthesis, Cytokines genetics, Female, Gene Expression Regulation, Humans, Male, Muscle Fibers, Skeletal pathology, RNA, Ribosomal genetics, Real-Time Polymerase Chain Reaction, Ribosomes genetics, Ribosomes pathology, Satellite Cells, Skeletal Muscle pathology, Brain Injuries pathology, Cerebral Palsy pathology, Extracellular Matrix pathology, Muscle, Skeletal pathology, and RNA, Ribosomal biosynthesis
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Introduction: Children with cerebral palsy (CP) and acquired brain injury (ABI) commonly develop muscle contractures with advancing age. An underlying growth defect contributing to skeletal muscle contracture formation in CP/ABI has been suggested.
Methods: The biceps muscles of children and adolescents with CP/ABI (n = 20) and typically developing controls (n = 10) were investigated. We used immunohistochemistry, quantitative real-time polymerase chain reaction, and Western blotting to assess gene expression relevant to growth and size homeostasis.
Results: Classical pro-inflammatory cytokines and genes involved in extracellular matrix (ECM) production were elevated in skeletal muscle of children with CP/ABI. Intramuscular collagen content was increased and satellite cell number decreased and this was associated with reduced levels of RNA polymerase I transcription factors, 45s pre-rRNA and 28S rRNA.
Discussion: The present study provides novel data suggesting a role for pro-inflammatory cytokines and reduced ribosomal production in the development/maintenance of muscle contractures, possibly underlying stunted growth and perimysial ECM expansion. Muscle Nerve 58: 277-285, 2018.
(© 2018 Wiley Periodicals, Inc.)
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Avdonin, V. Yu., Bulanov, L. V., Gelfenbein, E. V., Parfenov, E. P., and Efimov, S. V.
- Steel in Translation. May 2008, Vol. 38 Issue 5, p384, 4 p.
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Privalov, O. E., Kulinich, V. I., Golovachev, N. P., Suslov, A. V., and Prokop'ev, L. Ya.
- Steel in Translation. Feb 2008, Vol. 38 Issue 2, p147, 5 p.
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Cornelius, Mary L., Vinyard, Bryan T., Weber, Donald C., and Greenstone, Matthew H.
- Journal of Economic Entomology. April, 2021, Vol. 114 Issue 2, p590, 7 p.
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Koona, P., Osisanya, E. O., Lajide, L., Jackai, L. E. N., and Tamo, M.
Journal of Applied Entomology . Jun2003, Vol. 127 Issue 5, p293. 6p.
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PLANT chemical defenses, VIGNA, and COREIDAE
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The effects of secondary metabolites in different Vigna species on the development of Clavigralla tomentosicollis were investigated in an artificial seed system using different fractions of crude pod extracts, while the orientation response of this pod-bug to volatile extracts was studied using a dual-choice olfactometer. Feeding on the neutral fraction extracts, in contrast to the basic and acidic fractions, resulted in significantly higher mortalities, longer total developmental time, and lower growth index of the insects in comparison with controls. All volatile extracts elicited an avoidance reaction by C. tomentosicollis, except the volatile from the susceptible genotype IT84S-2246 which generally attracted as many insects as controls. Extracts from wild Vigna species showed higher activity than those from their cultivated relatives. The present study which has established that most secondary metabolites in cowpea pods were localized in the neutral fraction of the crude extract, could facilitate experiments on the separation and characterization of the toxic factors involved. [ABSTRACT FROM AUTHOR]
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Cruces L, de la Peña E, Livia C, and De Clercq P
Neotropical entomology [Neotrop Entomol] 2023 Apr; Vol. 52 (2), pp. 273-282. Date of Electronic Publication: 2022 Jun 21.
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Animals, Insecta, Predatory Behavior, Larva, Nymph, Chenopodium quinoa, Heteroptera, and Aphids
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In recent years, Liorhyssus hyalinus (Fabricius) (Hemiptera: Rhopalidae) and Nysius simulans Stål (Hemiptera: Lygaeidae) have emerged as important pests of quinoa in Peru, when the crop started to be cultivated at relatively low elevations. The potential of the native lacewing Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae) was evaluated as a biological control agent of these two pest species. Prey consumption on all immature stages of L. hyalinus and N. simulans was assessed, as well as development on first instars of these heteropterans and eggs of Sitotroga cerealella (Olivier) (Lepidoptera: Pyralidae) as a factitious prey. In addition, prey preference was examined in the absence and presence of a preferred prey, Macrosiphum euphorbiae (Thomas) (Hemiptera: Aphididae). Larvae of the predator were not able to feed on L. hyalinus eggs, but they effectively did on N. simulans eggs as well as on all nymphal instars of both species. Nymphs of L. hyalinus were less suitable prey for larval development of C. externa than eggs of S. cerealella, whereas N. simulans was overall an unsuitable prey. There was a clear prey preference of C. externa for aphids over the two heteropteran species, as well as a preference for N. simulans over L. hyalinus. The predation rates in this study indicate the potential of C. externa as a predator of these heteropteran pests that can play a role in both conservation and augmentation biological control programs.
(© 2022. Sociedade Entomológica do Brasil.)
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37. AIP mutations in young patients with acromegaly and the Tampico Giant: the Mexican experience. [2016]
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Ramírez-Rentería C, Hernández-Ramírez LC, Portocarrero-Ortiz L, Vargas G, Melgar V, Espinosa E, Espinosa-de-Los-Monteros AL, Sosa E, González B, Zúñiga S, Unterländer M, Burger J, Stals K, Bussell AM, Ellard S, Dang M, Iacovazzo D, Kapur S, Gabrovska P, Radian S, Roncaroli F, Korbonits M, and Mercado M
Endocrine [Endocrine] 2016 Aug; Vol. 53 (2), pp. 402-11. Date of Electronic Publication: 2016 Mar 31.
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Adenoma genetics, Adolescent, Adult, Female, Gene Frequency, Growth Hormone-Secreting Pituitary Adenoma genetics, Humans, Male, Mexico, Mutation, Young Adult, Acromegaly genetics, Gigantism genetics, and Intracellular Signaling Peptides and Proteins genetics
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Although aryl hydrocarbon receptor-interacting protein (AIP) mutations are rare in sporadic acromegaly, their prevalence among young patients is nonnegligible. The objectives of this study were to evaluate the frequency of AIP mutations in a cohort of Mexican patients with acromegaly with disease onset before the age of 30 and to search for molecular abnormalities in the AIP gene in teeth obtained from the "Tampico Giant". Peripheral blood DNA from 71 patients with acromegaly (51 females) with disease onset <30 years was analysed (median age of disease onset of 23 years) and correlated with clinical, biochemical and imaging characteristics. Sequencing was also carried out in DNA extracted from teeth of the Tampico Giant. Five patients (7 %) harboured heterozygous, germline mutations of the AIP gene. In two of them (a 9-year-old girl with gigantism and a young man with symptoms of GH excess since age 14) the c.910C>T (p.Arg304Ter), well-known truncating mutation was identified; in one of these two cases and her identical twin sister, the mutation proved to be a de novo event, since neither of their parents were found to be carriers. In the remaining three patients, new mutations were identified: a frameshift mutation (c.976_977insC, p.Gly326AfsTer), an in-frame deletion (c.872_877del, p.Val291_Leu292del) and a nonsense mutation (c.868A > T, p.Lys290Ter), which are predicted to be pathogenic based on in silico analysis. Patients with AIP mutations tended to have an earlier onset of acromegaly and harboured larger and more invasive tumours. A previously described genetic variant of unknown significance (c.869C > T, p.Ala299Val) was identified in DNA from the Tampico Giant. The prevalence of AIP mutations in young Mexican patients with acromegaly is similar to that of European cohorts. Our results support the need for genetic evaluation of patients with early onset acromegaly.
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Dénes J, Swords F, Rattenberry E, Stals K, Owens M, Cranston T, Xekouki P, Moran L, Kumar A, Wassif C, Fersht N, Baldeweg SE, Morris D, Lightman S, Agha A, Rees A, Grieve J, Powell M, Boguszewski CL, Dutta P, Thakker RV, Srirangalingam U, Thompson CJ, Druce M, Higham C, Davis J, Eeles R, Stevenson M, O'Sullivan B, Taniere P, Skordilis K, Gabrovska P, Barlier A, Webb SM, Aulinas A, Drake WM, Bevan JS, Preda C, Dalantaeva N, Ribeiro-Oliveira A Jr, Garcia IT, Yordanova G, Iotova V, Evanson J, Grossman AB, Trouillas J, Ellard S, Stratakis CA, Maher ER, Roncaroli F, and Korbonits M
The Journal of clinical endocrinology and metabolism [J Clin Endocrinol Metab] 2015 Mar; Vol. 100 (3), pp. E531-41. Date of Electronic Publication: 2014 Dec 12.
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Adenoma epidemiology, Adrenal Gland Neoplasms epidemiology, Adult, Cohort Studies, Female, Genetic Association Studies, Genetic Testing, Humans, Male, Middle Aged, Paraganglioma epidemiology, Pheochromocytoma epidemiology, Pituitary Neoplasms epidemiology, Young Adult, Adenoma genetics, Adrenal Gland Neoplasms genetics, Genetic Heterogeneity, Genetic Predisposition to Disease, Paraganglioma genetics, Pheochromocytoma genetics, and Pituitary Neoplasms genetics
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Context: Pituitary adenomas and pheochromocytomas/paragangliomas (pheo/PGL) can occur in the same patient or in the same family. Coexistence of the two diseases could be due to either a common pathogenic mechanism or a coincidence.
Objective: The objective of the investigation was to study the possible coexistence of pituitary adenoma and pheo/PGL.
Design: Thirty-nine cases of sporadic or familial pheo/PGL and pituitary adenomas were investigated. Known pheo/PGL genes (SDHA-D, SDHAF2, RET, VHL, TMEM127, MAX, FH) and pituitary adenoma genes (MEN1, AIP, CDKN1B) were sequenced using next generation or Sanger sequencing. Loss of heterozygosity study and pathological studies were performed on the available tumor samples.
Setting: The study was conducted at university hospitals.
Patients: Thirty-nine patients with sporadic of familial pituitary adenoma and pheo/PGL participated in the study.
Outcome: Outcomes included genetic screening and clinical characteristics.
Results: Eleven germline mutations (five SDHB, one SDHC, one SDHD, two VHL, and two MEN1) and four variants of unknown significance (two SDHA, one SDHB, and one SDHAF2) were identified in the studied genes in our patient cohort. Tumor tissue analysis identified LOH at the SDHB locus in three pituitary adenomas and loss of heterozygosity at the MEN1 locus in two pheochromocytomas. All the pituitary adenomas of patients affected by SDHX alterations have a unique histological feature not previously described in this context.
Conclusions: Mutations in the genes known to cause pheo/PGL can rarely be associated with pituitary adenomas, whereas mutation in a gene predisposing to pituitary adenomas (MEN1) can be associated with pheo/PGL. Our findings suggest that genetic testing should be considered in all patients or families with the constellation of pheo/PGL and a pituitary adenoma.
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Krasnyi, B. L. and Kartunov, E. P.
- Steel in Translation. July 2008, Vol. 38 Issue 7, p577, 3 p.
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Aguilar H, Urruticoechea A, Halonen P, Kiyotani K, Mushiroda T, Barril X, Serra-Musach J, Islam A, Caizzi L, Di Croce L, Nevedomskaya E, Zwart W, Bostner J, Karlsson E, Pérez Tenorio G, Fornander T, Sgroi DC, Garcia-Mata R, Jansen MP, García N, Bonifaci N, Climent F, Soler MT, Rodríguez-Vida A, Gil M, Brunet J, Martrat G, Gómez-Baldó L, Extremera AI, Figueras A, Balart J, Clarke R, Burnstein KL, Carlson KE, Katzenellenbogen JA, Vizoso M, Esteller M, Villanueva A, Rodríguez-Peña AB, Bustelo XR, Nakamura Y, Zembutsu H, Stål O, Beijersbergen RL, and Pujana MA
Breast cancer research : BCR [Breast Cancer Res] 2014 May 28; Vol. 16 (3), pp. R53. Date of Electronic Publication: 2014 May 28.
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Androstadienes therapeutic use, Antineoplastic Agents, Hormonal pharmacology, Aromatase Inhibitors therapeutic use, Biomarkers, Tumor genetics, Breast pathology, Breast Neoplasms genetics, Breast Neoplasms pathology, Cell Line, Tumor, Cell Proliferation drug effects, Cell Survival drug effects, Enzyme Activators pharmacology, ErbB Receptors antagonists inhibitors, Erlotinib Hydrochloride, Estrogen Receptor alpha antagonists inhibitors, Estrogen Receptor alpha genetics, Female, Gene Expression Regulation, Neoplastic, Genetic Association Studies, Genetic Variation, Humans, Letrozole, MCF-7 Cells, Nitriles therapeutic use, Protein Kinase Inhibitors pharmacology, Quinazolines pharmacology, RNA Interference, RNA, Small Interfering, Tamoxifen pharmacology, Tamoxifen therapeutic use, Toremifene pharmacology, Toremifene therapeutic use, Triazoles therapeutic use, Breast Neoplasms drug therapy, Drug Resistance, Neoplasm genetics, Estrogen Receptor alpha metabolism, Indazoles pharmacology, and Proto-Oncogene Proteins c-vav genetics
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Introduction: Endocrine therapies targeting cell proliferation and survival mediated by estrogen receptor α (ERα) are among the most effective systemic treatments for ERα-positive breast cancer. However, most tumors initially responsive to these therapies acquire resistance through mechanisms that involve ERα transcriptional regulatory plasticity. Herein we identify VAV3 as a critical component in this process.
Methods: A cell-based chemical compound screen was carried out to identify therapeutic strategies against resistance to endocrine therapy. Binding to ERα was evaluated by molecular docking analyses, an agonist fluoligand assay and short hairpin (sh)RNA-mediated protein depletion. Microarray analyses were performed to identify altered gene expression. Western blot analysis of signaling and proliferation markers, and shRNA-mediated protein depletion in viability and clonogenic assays, were performed to delineate the role of VAV3. Genetic variation in VAV3 was assessed for association with the response to tamoxifen. Immunohistochemical analyses of VAV3 were carried out to determine its association with therapeutic response and different tumor markers. An analysis of gene expression association with drug sensitivity was carried out to identify a potential therapeutic approach based on differential VAV3 expression.
Results: The compound YC-1 was found to comparatively reduce the viability of cell models of acquired resistance. This effect was probably not due to activation of its canonical target (soluble guanylyl cyclase), but instead was likely a result of binding to ERα. VAV3 was selectively reduced upon exposure to YC-1 or ERα depletion, and, accordingly, VAV3 depletion comparatively reduced the viability of cell models of acquired resistance. In the clinical scenario, germline variation in VAV3 was associated with the response to tamoxifen in Japanese breast cancer patients (rs10494071 combined P value = 8.4 × 10-4). The allele association combined with gene expression analyses indicated that low VAV3 expression predicts better clinical outcome. Conversely, high nuclear VAV3 expression in tumor cells was associated with poorer endocrine therapy response. Based on VAV3 expression levels and the response to erlotinib in cancer cell lines, targeting EGFR signaling may be a promising therapeutic strategy.
Conclusions: This study proposes VAV3 as a biomarker and a rationale for its use as a signaling target to prevent and/or overcome resistance to endocrine therapy in breast cancer.
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Marques P, Caimari F, Hernández-Ramírez LC, Collier D, Iacovazzo D, Ronaldson A, Magid K, Lim CT, Stals K, Ellard S, Grossman AB, and Korbonits M
The Journal of clinical endocrinology and metabolism [J Clin Endocrinol Metab] 2020 Jun 01; Vol. 105 (6).
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Adolescent, Adult, Age of Onset, Female, Follow-Up Studies, Growth Hormone-Secreting Pituitary Adenoma genetics, Humans, Male, Pituitary Neoplasms genetics, Prognosis, Prospective Studies, Young Adult, Biomarkers analysis, Genetic Testing methods, Growth Hormone-Secreting Pituitary Adenoma diagnosis, Intracellular Signaling Peptides and Proteins genetics, Mass Screening methods, Mutation, and Pituitary Neoplasms diagnosis
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Context: Germline mutations in the aryl hydrocarbon receptor-interacting protein (AIP) gene are responsible for a subset of familial isolated pituitary adenoma (FIPA) cases and sporadic pituitary neuroendocrine tumors (PitNETs).
Objective: To compare prospectively diagnosed AIP mutation-positive (AIPmut) PitNET patients with clinically presenting patients and to compare the clinical characteristics of AIPmut and AIPneg PitNET patients.
Design: 12-year prospective, observational study.
Participants & Setting: We studied probands and family members of FIPA kindreds and sporadic patients with disease onset ≤18 years or macroadenomas with onset ≤30 years (n = 1477). This was a collaborative study conducted at referral centers for pituitary diseases.
Interventions & Outcome: AIP testing and clinical screening for pituitary disease. Comparison of characteristics of prospectively diagnosed (n = 22) vs clinically presenting AIPmut PitNET patients (n = 145), and AIPmut (n = 167) vs AIPneg PitNET patients (n = 1310).
Results: Prospectively diagnosed AIPmut PitNET patients had smaller lesions with less suprasellar extension or cavernous sinus invasion and required fewer treatments with fewer operations and no radiotherapy compared with clinically presenting cases; there were fewer cases with active disease and hypopituitarism at last follow-up. When comparing AIPmut and AIPneg cases, AIPmut patients were more often males, younger, more often had GH excess, pituitary apoplexy, suprasellar extension, and more patients required multimodal therapy, including radiotherapy. AIPmut patients (n = 136) with GH excess were taller than AIPneg counterparts (n = 650).
Conclusions: Prospectively diagnosed AIPmut patients show better outcomes than clinically presenting cases, demonstrating the benefits of genetic and clinical screening. AIP-related pituitary disease has a wide spectrum ranging from aggressively growing lesions to stable or indolent disease course.
(© Endocrine Society 2020.)
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Stickel F, Buch S, Zoller H, Hultcrantz R, Gallati S, Österreicher C, Finkenstedt A, Stadlmayr A, Aigner E, Sahinbegovic E, Sarrazin C, Schafmayer C, Braun F, Erhart W, Nothnagel M, Lerch MM, Mayerle J, Völzke H, Schaller A, Kratzer W, Boehm BO, Sipos B, D'Amato M, Torkvist L, Stal P, Arlt A, Franke A, Becker T, Krawczak M, Zwerina J, Berg T, Hinrichsen H, Krones E, Dejaco C, Strasser M, Datz C, and Hampe J
Human molecular genetics [Hum Mol Genet] 2014 Jul 15; Vol. 23 (14), pp. 3883-90. Date of Electronic Publication: 2014 Feb 20.
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Aged, Female, Genome, Human, Genome-Wide Association Study, Hemochromatosis complications, Hemochromatosis pathology, Hemochromatosis Protein, Homozygote, Humans, Iron metabolism, Male, Middle Aged, Polymorphism, Single Nucleotide, Risk Factors, Hemochromatosis genetics, Histocompatibility Antigens Class I genetics, Liver Cirrhosis genetics, Membrane Proteins genetics, and Subtilisins genetics
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Genome-wide association studies (GWAS) have revealed genetic determinants of iron metabolism, but correlation of these with clinical phenotypes is pending. Homozygosity for HFE C282Y is the predominant genetic risk factor for hereditary hemochromatosis (HH) and may cause liver cirrhosis. However, this genotype has a low penetrance. Thus, detection of yet unknown genetic markers that identify patients at risk of developing severe liver disease is necessary for better prevention. Genetic loci associated with iron metabolism (TF, TMPRSS6, PCSK7, TFR2 and Chr2p14) in recent GWAS and liver fibrosis (PNPLA3) in recent meta-analysis were analyzed for association with either liver cirrhosis or advanced fibrosis in 148 German HFE C282Y homozygotes. Replication of associations was sought in additional 499 Austrian/Swiss and 112 HFE C282Y homozygotes from Sweden. Only variant rs236918 in the PCSK7 gene (proprotein convertase subtilisin/kexin type 7) was associated with cirrhosis or advanced fibrosis (P = 1.02 × 10(-5)) in the German cohort with genotypic odds ratios of 3.56 (95% CI 1.29-9.77) for CG heterozygotes and 5.38 (95% CI 2.39-12.10) for C allele carriers. Association between rs236918 and cirrhosis was confirmed in Austrian/Swiss HFE C282Y homozygotes (P = 0.014; ORallelic = 1.82 (95% CI 1.12-2.95) but not in Swedish patients. Post hoc combined analyses of German/Swiss/Austrian patients with available liver histology (N = 244, P = 0.00014, ORallelic = 2.84) and of males only (N = 431, P = 2.17 × 10(-5), ORallelic = 2.54) were consistent with the premier finding. Association between rs236918 and cirrhosis was not confirmed in alcoholic cirrhotics, suggesting specificity of this genetic risk factor for HH. PCSK7 variant rs236918 is a risk factor for cirrhosis in HH patients homozygous for the HFE C282Y mutation.
(© The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
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Vieira P, De Clercq A, Stals H, Van Leene J, Van De Slijke E, Van Isterdael G, Eeckhout D, Persiau G, Van Damme D, Verkest A, Antonino de Souza JD, Júnior, Glab N, Abad P, Engler G, Inzé D, De Veylder L, De Jaeger G, and Engler JD
The Plant cell [Plant Cell] 2014 Jun; Vol. 26 (6), pp. 2633-2647. Date of Electronic Publication: 2014 Jun 24.
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In Arabidopsis thaliana, seven cyclin-dependent kinase (CDK) inhibitors have been identified, designated interactors of CDKs or Kip-related proteins (KRPs). Here, the function of KRP6 was investigated during cell cycle progression in roots infected by plant-parasitic root-knot nematodes. Contrary to expectations, analysis of Meloidogyne incognita-induced galls of KRP6-overexpressing lines revealed a role for this particular KRP as an activator of the mitotic cell cycle. In accordance, KRP6-overexpressing suspension cultures displayed accelerated entry into mitosis, but delayed mitotic progression. Likewise, phenotypic analysis of cultured cells and nematode-induced giant cells revealed a failure in mitotic exit, with the appearance of multinucleated cells as a consequence. Strong KRP6 expression upon nematode infection and the phenotypic resemblance between KRP6 overexpression cell cultures and root-knot morphology point toward the involvement of KRP6 in the multinucleate and acytokinetic state of giant cells. Along these lines, the parasite might have evolved to manipulate plant KRP6 transcription to the benefit of gall establishment.
(© 2014 American Society of Plant Biologists. All rights reserved.)
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Withers, Toni M., Allen, Geoff R., Todoroki, Christine L., Pugh, Andrew R., and Gresham, Belinda A.
- Entomologia Experimentalis et Applicata. Jan, 2021, Vol. 169 Issue 1, p97, 14 p.
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SOTO-VIVAS, Ana, LIRIA, Jonathan, and DE LUNA, EfraÍn
Acta Zoológica Mexicana . 2011, Vol. 27 Issue 1, p87-102. 16p. 1 Black and White Photograph, 1 Diagram, 2 Charts, 1 Graph.
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RHODNIUS, CONENOSES, CLASSIFICATION of insects, and SPECIES diversity
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Tribe Rhodniini includes Rhodnius Stål and Psammolestes Bergroth. Enzymatic and molecular evidence suggest the tribe is monophyletic. Most species are wild, living in palms and bird nests. Traditionally both genera were considered related; nevertheless, molecular studies don't support the Rhodnius monophyly. The goal was to phylogenetically analyze morphometric variation in wing architecture in support of Rhodniini taxonomy and systematics. We photographed 524 wings of five representatives of Rhodniini: Psammolestes arthuri (Pinto) (n = 89), Rhodnius pictipes Stål (n = 21), R. robustus Larrousse (n = 24), R. prolixus Stål (n = 16), and R. neivai Lent (n = 22). As outgroups we studied four representatives of Triatomini: Eratyrus mucronatus Stål (n = 15), Panstrongylus rufotuberculatus (Champion) (n = 45), P. geniculatus (Latreille) (n = 183), and Triatoma maculata (Erichson) (n = 109). Landmark coordinate (x, y) configurations were registered and aligned by Generalized Procrustes Analysis. Covariance Analyses were implemented with proportions of re-classified groups and MANOVA. Then, wing shape variables (confidence intervals from relative warps) and centroid size were cladistically analysed. Statistical analyses of variance found not significant differences in wing isometric size (Kruskal-Wallis) among P. arthuri-R. neivai-R. pictipes; R. robustus-R. prolixus-T. maculata and between P. rufotuberculatus-P. geniculatus. The a posteriori re-classification was perfect in E. mucrunatus 100% and R. pictipes, followed by T. maculata 96%, R. neivai 95%, P arthuri 93.2%; R. prolixus 87.5%, P. geniculatus 87.4%, P. rufotuberculatus 84.4%, and R. robustus 76%. Cladistic analyses under parsimony selected two most parsimonious trees (L=4.461 IC=0.973 and IR=0.979), where the strict consensus showed a monophyletic group with Panstrongylus (rufotuberculatus + geniculatus) and Triatoma + Rhodniini (Rhodinus + Psammolestes), but internally it shows the paraphyly of Rhodnius regarding Psammolestes. The congruence between these results and previous molecular analyses in Rhodniini, reveal the phylogenetic information of our morphometric characters as support to systematic studies, allowing the combination of geometric morphometrics and phylogenetic methods for the first time in this group. [ABSTRACT FROM AUTHOR]
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Zhang, Q.‐H., Schneidmiller, R. G., Hoover, D. R., Zhou, G., Margaryan, A., and Bryant, P.
Journal of Applied Entomology . Aug2014, Vol. 138 Issue 7, p490-499. 10p.
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ESSENTIAL oils, REPELLENTS, STINKBUGS, HEMIPTERA, LEMONGRASS oil, SPEARMINT oil, and METHYL benzoate
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The brown marmorated stink bug ( BMSB), Halyomorpha halys ( Stål), native to Northeastern Asia, is a serious invasive pest in the United States, Canada, Switzerland, Germany and France. Several common essential oils and their compositions were tested against BMSBs as potential repellents. All the tested individual essential oils and a ternary oil blend showed significant repellency to both BMSB nymphs and adults. Clove oil, lemongrass oil, spearmint oil, ylang-ylang oil, and the ternary oil mixture (clove, lemongrass and spearmint) almost completely blocked attraction of BMSBs to the stink bug attractant-baited traps; whereas wintergreen oil, geranium oil, pennyroyal oil and rosemary oil resulted in 60-85% trap catch reductions. Over 20 BMSB antennally active compounds were identified from SPME headspace samples of the eight repellent essential oils using GC- EAD and GC- MS techniques. Among the synthetic EAD-active compounds tested in the field, eugenol, l-carvone, p/l-menthone, pulegone, methyl salicylate, trans/ cis-citral, methyl benzoate and β-caryophyllene significantly reduced trap catches of BMSBs by 72-99%; these compounds are likely responsible for the repellency of their corresponding essential oils. Surprisingly, a synthetic mixture of the predacious spined soldier bug ( SSB) [ Podisus maculiventris (Say)] aggregation pheromone ( trans-2-hexenal, α-terpineol and benzyl alcohol) also showed a significant inhibition of BMSB response to its attractants. These repellent essential oils and their active compounds, as well as the synthetic SSB pheromone, are potentially useful as part of an efficient, environmentally sound semiochemical-based IPM programme to combat this serious invasive stink bug. [ABSTRACT FROM AUTHOR]
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Wang GS, Eriksson LC, Xia L, Olsson J, and Stål P
Journal of hepatology [J Hepatol] 1999 Apr; Vol. 30 (4), pp. 689-98.
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Animals, Antioxidants metabolism, Apoptosis drug effects, Body Weight drug effects, Carbon Tetrachloride antagonists inhibitors, Carcinogens toxicity, Cell Division drug effects, Diet, Diethylnitrosamine toxicity, Iron administration dosage, Iron metabolism, Kupffer Cells drug effects, Kupffer Cells pathology, Liver metabolism, Liver pathology, Liver Neoplasms, Experimental chemically induced, Liver Neoplasms, Experimental pathology, Male, Necrosis, Organ Size drug effects, Rats, Rats, Wistar, Ubiquinone metabolism, Vitamin E metabolism, Carbon Tetrachloride toxicity, Iron pharmacology, Liver drug effects, and Liver Neoplasms, Experimental prevention control
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Background/aims: The aim of this study was to investigate if feeding with carbonyl iron would facilitate the development of preneoplastic lesions initiated by diethylnitrosamine (DEN) and promoted by CCl4-induced liver cirrhosis.
Methods: Male Wistar rats were fed a diet with 1.25%-2.5% carbonyl iron for 23 weeks and received intragastric injections of CCl4 (1.0 or 2.0 ml/kg per week) for 13 weeks, followed by one i.p. injection of DEN (200 mg/kg), after which CCl4 was administered for 8 additional weeks. Animals were killed 48 h after the first CCl4 injection to evaluate liver necrosis, 8 weeks later to evaluate fibrosis, and 9 weeks after DEN to determine formation of glutathione S-transferase 7,7 (GST-7,7) positive foci.
Results: Treatment with iron counteracted the increased serum alanine aminotransferase levels and liver necrosis following CCl4 administration. Hepatic levels of reduced Q9 and alpha-tocopherol were elevated in rats treated with CCl4 and decreased in rats treated with iron compared to the controls. Fibrogenesis was not altered by iron treatment. Nine weeks after DEN initiation, the number and volume density of GST-7,7-positive foci in rats treated with CCl4 were significantly increased as compared with controls, but co-treatment with iron inhibited this increase. Apoptotic index was increased in iron-loaded livers, and labelling index (the fraction of S-phase hepatocytes) was decreased by co-treatment with iron in livers exposed to CCl4.
Conclusion: Carbonyl iron depleted hepatic levels of antioxidants, it decreased CCl4-induced necrosis and cell proliferation, it enhanced apoptosis and did not facilitate fibrogenesis. These effects together may explain the suppression of CCl4-induced promotion after DEN initiation exerted by carbonyl iron in the present study.
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Dahlborn, K., Bugnon, P., Nevalainen, T., Raspa, M., Verbost, P., and Spangenberg, E.
- STAL. March 2014, Vol. 40 Issue 1, p29, 13 p.
49. Targeted interactomics reveals a complex core cell cycle machinery in Arabidopsis thaliana. [2010]
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Van Leene J, Hollunder J, Eeckhout D, Persiau G, Van De Slijke E, Stals H, Van Isterdael G, Verkest A, Neirynck S, Buffel Y, De Bodt S, Maere S, Laukens K, Pharazyn A, Ferreira PC, Eloy N, Renne C, Meyer C, Faure JD, Steinbrenner J, Beynon J, Larkin JC, Van de Peer Y, Hilson P, Kuiper M, De Veylder L, Van Onckelen H, Inzé D, Witters E, and De Jaeger G
Molecular systems biology [Mol Syst Biol] 2010 Aug 10; Vol. 6, pp. 397.
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Computational Biology, Cyclin-Dependent Kinases metabolism, Cyclins metabolism, DNA Replication, Luciferases metabolism, Mitosis, Models, Biological, Multiprotein Complexes metabolism, Protein Binding, Protein Interaction Mapping, Reproducibility of Results, Arabidopsis cytology, Arabidopsis metabolism, Arabidopsis Proteins metabolism, Cell Cycle, and Cell Cycle Proteins metabolism
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Cell proliferation is the main driving force for plant growth. Although genome sequence analysis revealed a high number of cell cycle genes in plants, little is known about the molecular complexes steering cell division. In a targeted proteomics approach, we mapped the core complex machinery at the heart of the Arabidopsis thaliana cell cycle control. Besides a central regulatory network of core complexes, we distinguished a peripheral network that links the core machinery to up- and downstream pathways. Over 100 new candidate cell cycle proteins were predicted and an in-depth biological interpretation demonstrated the hypothesis-generating power of the interaction data. The data set provided a comprehensive view on heterodimeric cyclin-dependent kinase (CDK)-cyclin complexes in plants. For the first time, inhibitory proteins of plant-specific B-type CDKs were discovered and the anaphase-promoting complex was characterized and extended. Important conclusions were that mitotic A- and B-type cyclins form complexes with the plant-specific B-type CDKs and not with CDKA;1, and that D-type cyclins and S-phase-specific A-type cyclins seem to be associated exclusively with CDKA;1. Furthermore, we could show that plants have evolved a combinatorial toolkit consisting of at least 92 different CDK-cyclin complex variants, which strongly underscores the functional diversification among the large family of cyclins and reflects the pivotal role of cell cycle regulation in the developmental plasticity of plants.
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Gladhstein, L. I., Bobyleva, L. A., Yakushev, E. V., Lopatkin, V. A., Pemov, I. F., and Naumenko, A. A.
- Steel in Translation. Feb 2009, Vol. 39 Issue 2, p168, 6 p.
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