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Gilberts Syndrome

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https://www.readbyqxmd.com/read/28213806/clinical-ugt1a1-genetic-analysis-in-pediatric-patients-experience-of-a-reference-laboratory
#1
Ann M Moyer, Jennifer M Skierka, Katrina E Kotzer, Michelle L Kluge, John L Black, Linnea M Baudhuin
BACKGROUND: Neonatal hyperbilirubinemia can be severe or prolonged and warrant exploration into the underlying etiology, which may include genetic assessment of UGT1A1 for inherited disorders (i.e. Crigler-Najjar syndrome or Gilbert syndrome). METHODS: In our reference laboratory, we performed UGT1A1 gene sequencing analysis on 346 pediatric patients referred for a clinical indication of hyperbilirubinemia. RESULTS: Males (n = 241) had significantly higher mean total bilirubin concentration compared to females (n = 105) (9...
February 17, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28207997/chronically-elevated-bilirubin-protects-from-cardiac-reperfusion-injury-in-the-male-gunn-rat
#2
Bhavisha Bakrania, Eugene F Du Toit, Kevin J Ashton, Karl-Heinz Wagner, John P Headrick, Andrew C Bulmer
AIMS: Bilirubin is associated with reduced risk of cardiovascular disease, as evidenced in conditions of mild hyperbilirubinaemia (Gilbert's Syndrome). Little is known regarding myocardial stress-resistance in hyperbilirubinemic conditions or whether life-long exposure modifies cardiac function, which might contribute to protection from cardiovascular disease. METHODS: Hyperbilirubinemic rats and littermate controls underwent echocardiography at 3, 6 and 12 mo of age, with hearts subsequently assessed for resistance to 30 min of ischaemia...
February 16, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28176767/intragenic-fmr1-disease-causing-variants-a-significant-mutational-mechanism-leading-to-fragile-x-syndrome
#3
Angélique Quartier, Hélène Poquet, Brigitte Gilbert-Dussardier, Massimiliano Rossi, Anne-Sophie Casteleyn, Vincent des Portes, Claire Feger, Elsa Nourisson, Paul Kuentz, Claire Redin, Julien Thevenon, Anne-Laure Mosca-Boidron, Patrick Callier, Jean Muller, Gaetan Lesca, Frédéric Huet, Véronique Geoffroy, Salima El Chehadeh, Matthieu Jung, Benoit Trojak, Stéphanie Le Gras, Daphné Lehalle, Bernard Jost, Stéphanie Maury, Alice Masurel, Patrick Edery, Christel Thauvin-Robinet, Bénédicte Gérard, Jean-Louis Mandel, Laurence Faivre, Amélie Piton
Fragile-X syndrome (FXS) is a frequent genetic form of intellectual disability (ID). The main recurrent mutagenic mechanism causing FXS is the expansion of a CGG repeat sequence in the 5'-UTR of the FMR1 gene, therefore, routinely tested in ID patients. We report here three FMR1 intragenic pathogenic variants not affecting this sequence, identified using high-throughput sequencing (HTS): a previously reported hemizygous deletion encompassing the last exon of FMR1, too small to be detected by array-CGH and inducing decreased expression of a truncated form of FMRP protein, in three brothers with ID (family 1) and two splice variants in boys with sporadic ID: a de novo variant c...
February 8, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28168966/extracorporeal-membrane-oxygenation-for%C3%A2-acute-respiratory-distress-syndrome-after-pneumonectomy
#4
Jeremie Reeb, Anne Olland, Julien Pottecher, Xavier Delabranche, Mickael Schaeffer, Stephane Renaud, Nicola Santelmo, Romain Kessler, Gilbert Massard, Pierre-Emmanuel Falcoz
BACKGROUND: Postpneumonectomy acute respiratory distress syndrome (ppARDS) is a life-threatening condition with a disastrous prognosis. This study assessed the efficacy of venovenous extracorporeal membrane oxygenation (VV-ECMO) in adult patients with unresponsive severe ppARDS. METHODS: We retrospectively reviewed data of all patients treated with VV-ECMO for ppARDS from January 2009 to December 2015. We calculated the Sequential Organ Failure Assessment score before ECMO insertion and monitored the subsequent mechanical ventilation settings...
February 3, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28145671/evaluation-of-jaundice-in-adults
#5
Matthew V Fargo, Scott P Grogan, Aaron Saguil
Jaundice in adults can be an indicator of significant underlying disease. It is caused by elevated serum bilirubin levels in the unconjugated or conjugated form. The evaluation of jaundice relies on the history and physical examination. The initial laboratory evaluation should include fractionated bilirubin, a complete blood count, alanine transaminase, aspartate transaminase, alkaline phosphatase, ?-glutamyltransferase, prothrombin time and/or international normalized ratio, albumin, and protein. Imaging with ultrasonography or computed tomography can differentiate between extrahepatic obstructive and intrahepatic parenchymal disorders...
February 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28135115/molecular-analysis-of-ephrin-a4-and-ephrin-b1-in-a-rabbit-model-of-craniosynostosis-likely-exclusion-as-the-loci-of-origin
#6
Gwen M Taylor, Gregory M Cooper, Joseph E Losee, Mark P Mooney, James Gilbert
Craniosynostosis (CS) has a prevalence of approximately 1 in every 2000 live births and is characterized by the premature fusion of one or more cranial sutures. Failure to maintain the cell lineage boundary at the coronal suture is thought to be involved in the pathology of some forms of CS. The Ephrin family of receptor tyrosine kinases consists of membrane-bound receptors and ligands that control cell patterning and the formation of developmental boundaries. Mutations in the ephrin A4 (EFNA4) and ephrin B1 (EFNB1) ligands have been linked to nonsyndromic CS and craniofrontonasal syndrome, respectively, in patient samples...
January 30, 2017: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/28132691/de-novo-disruption-of-the-proteasome-regulatory-subunit-psmd12-causes-a-syndromic-neurodevelopmental-disorder
#7
Sébastien Küry, Thomas Besnard, Frédéric Ebstein, Tahir N Khan, Tomasz Gambin, Jessica Douglas, Carlos A Bacino, Stephan J Sanders, Andrea Lehmann, Xénia Latypova, Kamal Khan, Mathilde Pacault, Stephanie Sacharow, Kimberly Glaser, Eric Bieth, Laurence Perrin-Sabourin, Marie-Line Jacquemont, Megan T Cho, Elizabeth Roeder, Anne-Sophie Denommé-Pichon, Kristin G Monaghan, Bo Yuan, Fan Xia, Sylvain Simon, Dominique Bonneau, Philippe Parent, Brigitte Gilbert-Dussardier, Sylvie Odent, Annick Toutain, Laurent Pasquier, Deborah Barbouth, Chad A Shaw, Ankita Patel, Janice L Smith, Weimin Bi, Sébastien Schmitt, Wallid Deb, Mathilde Nizon, Sandra Mercier, Marie Vincent, Caroline Rooryck, Valérie Malan, Ignacio Briceño, Alberto Gómez, Kimberly M Nugent, James B Gibson, Benjamin Cogné, James R Lupski, Holly A F Stessman, Evan E Eichler, Kyle Retterer, Yaping Yang, Richard Redon, Nicholas Katsanis, Jill A Rosenfeld, Peter-Michael Kloetzel, Christelle Golzio, Stéphane Bézieau, Paweł Stankiewicz, Bertrand Isidor
Degradation of proteins by the ubiquitin-proteasome system (UPS) is an essential biological process in the development of eukaryotic organisms. Dysregulation of this mechanism leads to numerous human neurodegenerative or neurodevelopmental disorders. Through a multi-center collaboration, we identified six de novo genomic deletions and four de novo point mutations involving PSMD12, encoding the non-ATPase subunit PSMD12 (aka RPN5) of the 19S regulator of 26S proteasome complex, in unrelated individuals with intellectual disability, congenital malformations, ophthalmologic anomalies, feeding difficulties, deafness, and subtle dysmorphic facial features...
February 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28117080/genomic-and-clinical-profiling-of-a-national-nephrotic-syndrome-cohort-advocates-a-precision-medicine-approach-to-disease-management
#8
Agnieszka Bierzynska, Hugh J McCarthy, Katrina Soderquest, Ethan S Sen, Elizabeth Colby, Wen Y Ding, Marwa M Nabhan, Larissa Kerecuk, Shivram Hegde, David Hughes, Stephen Marks, Sally Feather, Caroline Jones, Nicholas J A Webb, Milos Ognjanovic, Martin Christian, Rodney D Gilbert, Manish D Sinha, Graham M Lord, Michael Simpson, Ania B Koziell, Gavin I Welsh, Moin A Saleem
Steroid Resistant Nephrotic Syndrome (SRNS) in children and young adults has differing etiologies with monogenic disease accounting for 2.9-30% in selected series. Using whole exome sequencing we sought to stratify a national population of children with SRNS into monogenic and non-monogenic forms, and further define those groups by detailed phenotypic analysis. Pediatric patients with SRNS were identified via a national United Kingdom Renal Registry. Whole exome sequencing was performed on 187 patients, of which 12% have a positive family history with a focus on the 53 genes currently known to be associated with nephrotic syndrome...
January 20, 2017: Kidney International
https://www.readbyqxmd.com/read/28100328/-repeated-yellowing-of-the-skin-and-sclera-for-2-years
#9
Xiao-Ye Yuan, Xiang-Ling He, Hui Zou, Run-Ying Zou
A two-year-old girl was admitted due to repeated yellowing of the skin and sclera for 2 years and had no other specific symptoms or signs. The use of phenobarbital could relieve the symptoms of jaundice. Multiple examinations showed increased indirect bilirubin levels, and the results of aminotransferases and liver imaging were normal. There was no evidence of hemolysis. The analysis of UGT1A1 gene in her family found that this child had double homozygous mutation of c.211G>A(G71R) and c.1456T>G(Y486D), which had been reported as the pathogenic mutation for Gilbert syndrome...
January 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28096081/mice-with-hyperbilirubinemia-due-to-gilbert-s-syndrome-polymorphism-are-resistant-to-hepatic-steatosis-by-decreased-serine-73-phosphorylation-of-ppar%C3%AE
#10
Terry D Hinds, Peter A Hosick, Michael W Hankins, Andrea Nestor-Kalinoski, David E Stec
Gilbert's syndrome is derived from a polymorphism (TA repeat) in the hepatic UGT1A1 gene which results in decreased conjugation and increased levels of unconjugated bilirubin. Recently, we have shown that bilirubin binds directly to the fat burning nuclear peroxisome proliferator-activated receptor α (PPARα). Additionally, we have shown that serine 73 phosphorylation (Ser(P)(73)) of PPARα decreases activity by reducing its protein levels and transcriptional activity. The aim of this study was to determine if humanized mice with the Gilbert's polymorphism (HuUGT*28) have increased PPARα activation and reduced hepatic fat accumulation...
January 17, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28093842/gilbert-syndrome-in-patients-with-type-1-diabetes-prevalence-glycemic-control-and-microalbuminuria
#11
Sigal Singer, Nurit Pilpel, Orit Pinhas-Hamiel
BACKGROUND: Gilbert syndrome (GS) is a common hereditary condition, characterized by intermittent unconjugated hyperbilirubinemia. In adults with type 2 diabetes and GS, a markedly lower prevalence of nephropathy was documented, suggesting a beneficial effect of hyperbilirubinemia. We investigated the prevalence of GS among individuals with type 1 diabetes mellitus (T1DM), and the prevalence of microalbuminuria. METHODS: The prevalence of GS was assessed in 401 (204 female) patients with T1DM, median age 21...
January 17, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28090565/thbs2-is-a-candidate-modifier-of-liver-disease-severity-in-alagille-syndrome
#12
Ellen A Tsai, Melissa A Gilbert, Christopher M Grochowski, Lara A Underkoffler, He Meng, Xiaojie Zhang, Michael M Wang, Hailu Shitaye, Kurt D Hankenson, David Piccoli, Henry Lin, Binita M Kamath, Marcella Devoto, Nancy B Spinner, Kathleen M Loomes
BACKGROUND & AIMS: Alagille syndrome is an autosomal-dominant, multisystem disorder caused primarily by mutations in JAG1, resulting in bile duct paucity, cholestasis, cardiac disease, and other features. Liver disease severity in Alagille syndrome is highly variable, however, factors influencing the hepatic phenotype are unknown. We hypothesized that genetic modifiers may contribute to the variable expressivity of this disorder. METHODS: We performed a genome-wide association study in a cohort of Caucasian subjects with known pathogenic JAG1 mutations, comparing patients with mild vs severe liver disease, followed by functional characterization of a candidate locus...
September 2016: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28074283/diabetes-and-nephrotic-syndrome-questions
#13
Rodney D Gilbert, Edward Hind, Bhumita Vadgama
No abstract text is available yet for this article.
January 10, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28050400/the-association-between-prolonged-jaundice-and-ugt1a1-gene-polymorphism-g71r-in-gilbert-s-syndrome
#14
Ehsan Alaee, Behnaz Bazrafshan, Ali Reza Azaminejad, Mahnaz Fouladinejad, Majid Shahbazi
INTRODUCTION: Jaundice is a common condition during the neonatal period. Prolonged jaundice occurs in a large number of breastfed infants. Considering the impact of genetic factors on the incidence of jaundice present study was conducted. AIM: The aim of this study was to determine the association between prolonged jaundice and G71R polymorphism in Gilbert's syndrome. MATERIALS AND METHODS: This case-control study was conducted at Taleghani Children's Hospital of Gorgan, Iran...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28028852/structural-investigation-on-wlarg-from-campylobacter-jejuni-a-sugar-aminotransferase
#15
Garrett T Dow, Michel Gilbert, James B Thoden, Hazel M Holden
Campylobacter jejuni is a Gram-negative bacterium that represents a leading cause of human gastroenteritis worldwide. Of particular concern is the link between C. jejuni infections and the subsequent development of Guillain-Barré syndrome, an acquired autoimmune disorder leading to paralysis. All Gram-negative bacteria contain complex glycoconjugates anchored to their outer membranes, but in most strains of C. jejuni, this lipoglycan lacks the O-antigen repeating units. Recent mass spectrometry analyses indicate that the C...
December 28, 2016: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28012006/diabetes-and-nephrotic-syndrome-answers
#16
Rodney D Gilbert, Edward Hind, Bhumita Vadgama
No abstract text is available yet for this article.
December 23, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28004508/the-molecular-basis-of-jaundice-an-old-symptom-revisited
#17
REVIEW
Silvia Gazzin, Flora Masutti, Libor Vitek, Claudio Tiribelli
Increased serum bilirubin level is a widely used diagnostic marker for hepatic illnesses. Nevertheless, mild elevation of unconjugated serum bilirubin (such as in Gilbert syndrome) has been recently demonstrated to correlate with low risk of chronic inflammatory and/or oxidative stress-mediated diseases. In accord, a low serum bilirubin level has emerged as an important predisposing factor or a biomarker of these pathologic conditions including cardiovascular, tumour, and possibly neurodegenerative diseases...
December 22, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27968820/mortality-outcomes-after-busulfan-containing-conditioning-treatment-and-haemopoietic-cell-transplantation-in-patients-with-gilbert-s-syndrome-a-retrospective-cohort-study
#18
George B McDonald, Ashley T Evans, Jeannine S McCune, Gary Schoch, J Donald Ostrow, Ted A Gooley
BACKGROUND: Gilbert's syndrome is a common inherited disorder of bilirubin metabolism, characterised by mild, unconjugated hyperbilirubinaemia. However, the effect of Gilbert's syndrome on the disposition of some drugs can lead to unexpected toxicity. We tested the hypothesis that patients undergoing myeloablative conditioning and haemopoietic cell transplantation would have different mortality outcomes depending on whether or not they had laboratory evidence of Gilbert's syndrome. METHODS: In this retrospective cohort study, we used clinical and laboratory data of patients who had haemopoietic cell transplantation from Jan 1, 1991, to Dec 31, 2011...
November 2016: Lancet Haematology
https://www.readbyqxmd.com/read/27968817/gilbert-s-syndrome-in-haemopoietic-cell-transplantation
#19
Mukta Arora
No abstract text is available yet for this article.
November 2016: Lancet Haematology
https://www.readbyqxmd.com/read/27965142/duane-syndrome-with-prominent-oculo-auricular-phenomenon
#20
Aubrey L Gilbert, David G Hunter
Duane syndrome is a congenital cranial dysinnervation disorder involving absent or anomalous innervation of the lateral and medial rectus muscles that is sometimes associated with other manifestations of dysinnervation. We describe a patient with right esotropic Duane syndrome with a long-standing retroauricular tugging sensation in right gaze who was noted to have prominent ipsilateral oculo-auricular phenomenon, representing either abnormal enhancement of existing innervation or an uncommon dysinnervation...
December 10, 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
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