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Inherited liver disease

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https://www.readbyqxmd.com/read/27898169/cross-sectional-analysis-of-progressive-familial-intrahepatic-cholestasis-in-puerto-rican-children
#1
Dellys M Soler, Antonio I Del Valle, David Fernandez-Lube, Benjamin L Shneider
OBJECTIVE: Specific inherited disorders may be more common in island communities. Prior case reports suggest that cholestatic liver diseases may constitute a group of these inherited disorders in Puerto Rico. A cross-sectional survey of liver diseases in children was conducted to assess this hypothesis. METHODS: A cross-sectional analysis was performed in patients with chronic cholestasis at "Hospital Pediátrico Universitario" in San Juan, Puerto Rico. Ten potential participants with high gamma-glutamyl transpeptidase (GGTP) cholestasis were identified...
December 2016: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/27892545/erythrocyte-membrane-based-cationic-polymer-mcdna-complexes-as-an-efficient-gene-delivery-system
#2
Ping Huang, Jing Zhao, Chiju Wei, Xiaohu Hou, Pingzhang Chen, Yan Tan, Cheng-Yi He, Zhiyong Wang, Zhi-Ying Chen
Gene therapy has great promise for the treatment of obtained and inherited serious diseases. However, the lack of safe and efficient gene delivery systems remains a barrier for their clinical application. Here, we reported a potential gene delivery vehicle composed of the erythrocyte membrane and cationic polymers, for example the XtremeGENE from Roche and the ε-caprolactone modified polyethylenimine. In addition to high efficiency, this system showed negligible cytotoxicity compared to the two cationic polymers alone in various cell lines, including human embryonic kidney cells (293T), human liver cancer cells (Huh7 and HepG2), murine dendritic cells (DC2...
November 28, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27889327/epigenetics-in-non-alcoholic-fatty-liver-disease
#3
REVIEW
Jooho Lee, Yuri Kim, Simonetta Friso, Sang-Woon Choi
Non-alcoholic fatty liver disease (NAFLD), a common hepatic disorder ranging from simple steatosis through steatohepatitis to fibrosis and cirrhosis, is an emerging health concern. NAFLD is a pathologic condition characterized by the buildup of extra fat in liver cells that is not caused by alcohol consumption. Excess hepatic fat accumulation results from increased delivery of triglycerides (TG) to the liver or conversion of surplus carbohydrates to TG. Importantly, a subgroup of NAFLD results in hepatocellular injury and inflammation, which is referred to as non-alcoholic steatohepatitis (NASH), and may progress to irreversible cirrhosis and hepatocellular carcinoma (HCC)...
November 23, 2016: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/27855487/transfer-of-therapeutic-genes-into-fetal-rhesus-monkeys-using-recombinant-adeno-associated-type-i-viral-vectors
#4
Thomas J Conlon, Cathryn S Mah, Christina A R Pacak, Mary B Rucker Henninger, Kirsten E Erger, Marda L Jorgensen, Charles C Lee, Alice F Tarantal, Barry J Byrne
Neuromuscular disorders such as Pompe disease (glycogen storage disease, type II), result in early and potentially irreversible cellular damage with a very limited opportunity for intervention in the newborn period. Pompe disease is due to deficiency in acid α-glucosidase (GAA) leading to lysosomal accumulation of glycogen in all cell types, abnormal myofibrillogenesis, respiratory insufficiency, neurological deficits, and reduced contractile function in striated muscle. Previous studies have shown that fetal delivery of recombinant adeno-associated virus (rAAV) encoding GAA to the peritoneal cavity of Gaa-/- mice resulted in high-level transduction of the diaphragm...
November 17, 2016: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/27834916/systematic-analysis-of-protein-interaction-network-associated-with-azoospermia
#5
Soudabeh Sabetian, Mohd Shahir Shamsir
Non-obstructive azoospermia is a severe infertility factor. Currently, the etiology of this condition remains elusive with several possible molecular pathway disruptions identified in the post-meiotic spermatozoa. In the presented study, in order to identify all possible candidate genes associated with azoospermia and to map their relationship, we present the first protein-protein interaction network related to azoospermia and analyze the complex effects of the related genes systematically. Using Online Mendelian Inheritance in Man, the Human Protein Reference Database and Cytoscape, we created a novel network consisting of 209 protein nodes and 737 interactions...
November 10, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27830550/gunn-rats-as-a-surrogate-model-for-evaluation-of-hepatocyte-transplantation-based-therapies-of-crigler-najjar-syndrome-type-1
#6
Zsuzsanna Polgar, Yanfeng Li, Xia Li Wang, Chandan Guha, Namita Roy-Chowdhury, Jayanta Roy-Chowdhury
Liver transplantation has been established as a curative therapy for acute and chronic liver failure, as well as liver-based inherited metabolic diseases. Because of the complexity of organ transplantation and the worldwide shortage of donor organs, hepatocyte transplantation is being developed as a bridging therapy until donor organs become available, or for amelioration of inherited liver-based diseases. The Gunn rat is a molecular and metabolic model of Crigler-Najjar syndrome type 1, which is characterized by lifelong unconjugated hyperbilirubinemia due to the lack of uridinediphosphoglucuronate glucuronosyltransferase-1 (UGT1A1)-mediated bilirubin glucuronidation...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27812789/serum-plant-sterols-associate-with-gallstone-disease-independent-of-weight-loss-and-non-alcoholic-fatty-liver-disease
#7
Pirjo Käkelä, Ville Männistö, Imre Ilves, Maija Vaittinen, Milla-Maria Tauriainen, Matti Eskelinen, Helena Gylling, Hannu Paajanen, Jussi Pihlajamäki
BACKGROUND: Gallstone disease (GD) has been associated with low serum levels of plant sterols. We evaluated the impact of laparoscopic Roux-en-Y gastric bypass (LRYGB) and non-alcoholic fatty liver disease (NAFLD) on the association of GD with low levels of serum plant sterols. METHODS: Two hundred forty-two consecutive morbidly obese patients were recruited to this prospective study. Histological analysis of liver biopsy to diagnose NAFLD was performed. Bile sample was taken during the LRYGB...
November 3, 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27799810/novel-treatment-options-for-lysosomal-acid-lipase-deficiency-critical-appraisal-of-sebelipase-alfa
#8
REVIEW
Kim Su, Emma Donaldson, Reena Sharma
Lysosomal acid lipase deficiency (LAL-D) is a rare disorder of cholesterol metabolism with an autosomal recessive mode of inheritance. The absence or deficiency of the LAL enzyme gives rise to pathological accumulation of cholesterol esters in various tissues. A severe LAL-D phenotype manifesting in infancy is associated with adrenal calcification and liver and gastrointestinal involvement with characteristic early mortality. LAL-D presenting in childhood and adulthood is associated with hepatomegaly, liver fibrosis, cirrhosis, and premature atherosclerosis...
2016: Application of Clinical Genetics
https://www.readbyqxmd.com/read/27711248/tetrahydrobiopterin-supplementation-elevation-of-tissue-biopterin-levels-accompanied-by-a-relative-increase-in-dihydrobiopterin-in-the-blood-and-the-role-of-probenecid-sensitive-uptake-in-scavenging-dihydrobiopterin-in-the-liver-and-kidney-of-rats
#9
Akiko Ohashi, Yusuke Saeki, Tomonori Harada, Masako Naito, Tomihisa Takahashi, Shin Aizawa, Hiroyuki Hasegawa
Tetrahydrobiopterin (BH4) is an essential cofactor of nitric oxide synthase (NOS) and aromatic amino acid hydroxylases. BH4 and 7,8-dihydrobiopterin (BH2) are metabolically interchangeable at the expense of NADPH. Exogenously administered BH4 can be metabolized by the body, similar to vitamins. At present, synthetic BH4 is used as an orphan drug for patients with inherited diseases requiring BH4 supplementation. BH4 supplementation has also drawn attention as a means of treating certain cardiovascular symptoms, however, its application in human patients remains limited...
2016: PloS One
https://www.readbyqxmd.com/read/27704656/long-term-liver-related-morbidity-and-mortality-related-to-chronic-hepatitis-c-virus-infection-in-swedish-patients-with-inherited-bleeding-disorders
#10
M Holmström, A Nangarhari, J Öhman, A-S Duberg, A Majeed, S Aleman
INTRODUCTION: Hepatitis C virus (HCV) infection is common in patients with inherited bleeding disorders treated with clotting factor concentrates prior to the introduction of viral inactivation of these products. The long-term consequences of hepatitis C infection in Swedish patients are not fully understood. AIM: To examine the impact of HCV infection on liver-related morbidity and mortality in Swedish patients with inherited bleeding disorders. METHODS: We retrospectively collected data on 183 patients with inherited bleeding disorders infected with HCV who attended the Coagulation Unit at Karolinska University Hospital, Sweden...
November 2016: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/27671891/consensus-recommendations-for-the-diagnosis-treatment-and-follow-up-of-inherited-methylation-disorders
#11
Ivo Barić, Christian Staufner, Persephone Augoustides-Savvopoulou, Yin-Hsiu Chien, Dries Dobbelaere, Sarah C Grünert, Thomas Opladen, Danijela Petković Ramadža, Bojana Rakić, Anna Wedell, Henk J Blom
Inherited methylation disorders are a group of rarely reported, probably largely underdiagnosed disorders affecting transmethylation processes in the metabolic pathway between methionine and homocysteine. These are methionine adenosyltransferase I/III, glycine N-methyltransferase, S-adenosylhomocysteine hydrolase and adenosine kinase deficiencies. This paper provides the first consensus recommendations for the diagnosis and management of methylation disorders. Following search of the literature and evaluation according to the SIGN-methodology of all reported patients with methylation defects, graded recommendations are provided in a structured way comprising diagnosis (clinical presentation, biochemical abnormalities, differential diagnosis, newborn screening, prenatal diagnosis), therapy and follow-up...
September 26, 2016: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/27627571/clinical-biochemical-and-molecular-characteristics-of-the-main-types-of-porphyria
#12
REVIEW
Urszula Szlendak, Ksenia Bykowska, Agnieszka Lipniacka
Porphyrias are diverse disorders that arise from various inherited enzyme defects in the heme biosynthesis pathway, except for porphyria cutanea tarda (PCT), in which the enzyme deficiency in most cases is acquired. The biosynthetic blocks resulting from the defective enzymes are largely expressed either in the liver or bone marrow, the sites where the majority of heme is produced. Although the pathophysiologic mechanisms of the clinical manifestations of the porphyrias are not fully understood, two cardinal features prevail: skin photosensitivity and neurologic symptoms of intermittent autonomic neuropathy, acute neurovisceral attacks, and disorders of the nervous system...
March 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/27624512/lysosomal-acid-lipase-deficiency-unmasked-in-two-children-with-nonalcoholic-fatty-liver-disease
#13
Ryan W Himes, Sarah E Barlow, Kevin Bove, Norma M Quintanilla, Rachel Sheridan, Rohit Kohli
Lysosomal acid lipase deficiency (LAL-D) is a classic lysosomal storage disorder characterized by accumulation of cholesteryl ester and triglyceride. Although it is associated with progressive liver injury, fibrosis, and end-stage liver disease in children and adolescents, LAL-D frequently presents with nonspecific signs that overlap substantially with other, more common, chronic conditions like nonalcoholic fatty liver disease (NAFLD), metabolic syndrome, and certain inherited dyslipidemias. We present 2 children with NAFLD who achieved clinically significant weight reduction through healthy eating and exercise, but who failed to have the anticipated improvements in aminotransferases and γ-glutamyl transferase...
September 13, 2016: Pediatrics
https://www.readbyqxmd.com/read/27615426/mouse-lysine-catabolism-to-aminoadipate-occurs-primarily-through-the-saccharopine-pathway-implications-for-pyridoxine-dependent-epilepsy-pde
#14
Izabella Agostinho Pena, Lygia Azevedo Marques, Ângelo B A Laranjeira, José A Yunes, Marcos N Eberlin, Alex MacKenzie, Paulo Arruda
Lysine is catabolized in mammals through the saccharopine and pipecolate pathways - the former is mainly hepatic and renal, and the latter is believed to play a role in the cerebral lysine oxidation. Both pathways lead to the formation of aminoadipic semialdehyde (AASA) that is then oxidized to aminoadipate (AAA) by antiquitin (ALDH7A1). Mutations in the ALDH7A1 gene result in the accumulation of AASA and its cyclic form, piperideine-6-carboxylate (P6C), which causes pyridoxine-dependent epilepsy (PDE). P6C reacts with pyridoxal 5'-phosphate (PLP) causing its inactivation...
September 8, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27615128/the-role-of-hepatocyte-nuclear-factor-1%C3%AE-in-disease-and-development
#15
REVIEW
R El-Khairi, L Vallier
Heterozygous mutations in the gene that encodes the transcription factor hepatocyte nuclear factor 1β (HNF1B) result in a multi-system disorder. HNF1B was initially discovered as a monogenic diabetes gene; however, renal cysts are the most frequently detected feature. Other clinical features include pancreatic hypoplasia and exocrine insufficiency, genital tract malformations, abnormal liver function, cholestasis and early-onset gout. Heterozygous mutations and complete gene deletions in HNF1B each account for approximately 50% of all cases of HNF1B-associated disease and may show autosomal dominant inheritance or arise spontaneously...
September 2016: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/27612221/-a-22-year-old-mother-with-severe-pruritus-and-increasing-jaundice-two-weeks-after-starting-hormonal-contraception
#16
C Guth, U Beuers, K Beckh
Intermittent cholestatic liver disease may indicate an inherited deficiency of bile salt transport proteins. Episodes of cholestasis may start during pregnancy or during use of oral contraceptives or other medication. We describe the case of a 22-year-old mother with increasing jaundice and severe pruritus two weeks after starting hormonal contraception. A few months before she was suffering from intrahepatic cholestasis of pregnancy (ICP). Liver biopsy showed bland cholestasis with canalicular bile plugs...
September 2016: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/27612218/causes-of-altered-liver-function-tests-the-role-of-alpha-1-antitrypsin
#17
J Stollenwerk, M Schepke, E Biecker
BACKGROUND: Altered liver function tests are a common finding in clinical practice. Our retrospective study aimed to identify the diagnoses in a non-selected cohort of patients with altered liver tests and to investigate whether alpha-1 antitrypsin genotyping should be part of the diagnostic workup. PATIENTS AND METHODS: 501 patients who were admitted to our outpatient clinic for further evaluation of altered liver function tests were included in the study. The patients underwent a standardized diagnostic program with history taking, physical examination, laboratory tests and ultrasonography...
September 2016: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/27597528/search-for-sca2-blood-rna-biomarkers-highlights-ataxin-2-as-strong-modifier-of-the-mitochondrial-factor-pink1-levels
#18
Nesli Ece Sen, Jessica Drost, Suzana Gispert, Sylvia Torres-Odio, Ewa Damrath, Michael Klinkenberg, Hamid Hamzeiy, Gülden Akdal, Halil Güllüoğlu, A Nazlı Başak, Georg Auburger
Ataxin-2 (ATXN2) polyglutamine domain expansions of large size result in an autosomal dominantly inherited multi-system-atrophy of the nervous system named spinocerebellar ataxia type 2 (SCA2), while expansions of intermediate size act as polygenic risk factors for motor neuron disease (ALS and FTLD) and perhaps also for Levodopa-responsive Parkinson's disease (PD). In view of the established role of ATXN2 for RNA processing in periods of cell stress and the expression of ATXN2 in blood cells such as platelets, we investigated whether global deep RNA sequencing of whole blood from SCA2 patients identifies a molecular profile which might serve as diagnostic biomarker...
September 3, 2016: Neurobiology of Disease
https://www.readbyqxmd.com/read/27592149/recent-advance-in-the-molecular-genetics-of-wilson-disease-and-hereditary-hemochromatosis
#19
REVIEW
Tingxia Lv, Xiaojin Li, Wei Zhang, Xinyan Zhao, Xiaojuan Ou, Jian Huang
Metabolic liver diseases such as Wilson disease (WD) and hereditary hemochromatosis (HH) possess complicated pathogenesis and typical hereditary characteristics with the hallmarks of a deficiency in metal metabolism. Mutations in genes encoding ATPase, Cu + transporting, beta polypeptide (ATP7B) and hemochromatosis (HFE) or several non-HFE genes are considered to be causative for WD and HH, respectively. Although the identification of novel mutations in ATP7B for WD and HFE or the non-HFE genes for HH has increased, especially with the application of whole genome sequencing technology in recent years, the biological function of the identified mutations, as well as genotype-phenotype correlations remain to be explored...
October 2016: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/27564674/randomized-placebo-controlled-trials-in-alpha-1-antitrypsin-deficiency
#20
Robert A Sandhaus
Alpha-1 antitrypsin deficiency (AATD) is a condition caused by the inheritance of two mutated SERPINA1 gene alleles. Individuals with AATD are at increased risk of injury to the liver and lungs. The pulmonary manifestations include precocious onset of pulmonary emphysema and bronchiectasis. For nearly three decades, treatment has been available to individuals with emphysema caused by AATD, but this therapy-augmentation of plasma and tissue alpha-1 antitrypsin levels by intravenous administration of human plasma-derived protein-was approved by regulatory authorities based on its biochemical efficacy...
August 2016: Annals of the American Thoracic Society
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