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Liver hepatitis

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https://www.readbyqxmd.com/read/29351564/steatosis-in-south-african-women-how-much-and-why
#1
Nitien H Naran, Mark Haagensen, Nigel J Crowther
BACKGROUND: Globally, steatosis is the commonest type of liver pathology and is closely associated with obesity and the metabolic syndrome. Obesity is common in urban African females but no data is available on hepatic fat content in this population group when compared to other ethnic groups. The aim of this study was therefore to compare hepatic fat content in woman from different ethnic groups in South Africa and to characterise the principle determinants of liver fat. MATERIALS AND METHODS: A convenience sample of 106 (48 Indian, 29 African and 29 Caucasian) female volunteers aged 20-60 years and having no history of cardiometabolic disorders were recruited...
2018: PloS One
https://www.readbyqxmd.com/read/29351478/pentose-phosphate-pathway-activity-parallels-lipogenesis-but-not-antioxidant-processes-in-rat-liver
#2
Eunsook S Jin, Min Hee Lee, Rebecca E Murphy, Craig R Malloy
The pentose phosphate pathway (PPP) is widely assumed to play a key role in both reductive biosynthesis and protection from oxidative stress because it is the major source of NADPH. However, little is known about the activity of the PPP in fatty liver which is characterized by both oxidative stress and lipogenesis. This study was designed to test whether the PPP is active in parallel with lipogenesis and antioxidant processes in the fatty liver of whole animals. Eight- and 16-week old, obese Zucker diabetic fatty rats and their lean littermates received [U-13C3]glycerol, and 13C labeling patterns of glucose and triglycerides were analyzed for the assessment of hepatic PPP activity and the potentially-related processes simultaneously...
January 9, 2018: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351477/mathematical-analysis-of-circadian-disruption-and-metabolic-re-entrainment-of-hepatic-gluconeogenesis-the-intertwining-entraining-roles-of-light-and-feeding
#3
Seul-A Bae, Ioannis P Androulakis
The circadian rhythms influence the metabolic activity from molecular level to tissue, organ, and host level. Disruption of the circadian rhythms manifest to the host's health as metabolic syndromes including obesity, diabetes, and elevated plasma glucose, eventually leading to cardiovascular diseases. Therefore, it is imperative to understand the mechanism behind the relationship between circadian rhythms and metabolism. To start answering this question, we propose a semi-mechanistic mathematical model to study the effect of circadian disruption on hepatic gluconeogenesis in humans...
January 9, 2018: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351395/macrophage-colony-stimulating-factor-increases-hepatic-macrophage-content-liver-growth-and-lipid-accumulation-in-neonatal-rats
#4
Clare Pridans, Kristin A Sauter, Katharine M Irvine, Gemma M Davis, Lucas Lefevre, Anna Raper, Rocio Rojo, Ajit J Nirmal, Philippa Beard, Michael Cheeseman, David A Hume
Signaling via the colony stimulating factor 1 receptor (CSF1R) controls the survival, differentiation and proliferation of macrophages. Mutations in CSF1, or CSF1R in mice and rats have pleiotropic effects on postnatal somatic growth. We tested the possible application of CSF1-Fc as a therapy for low birth weight (LBW) at term, using a model based upon maternal dexamethasone treatment in rats. Neonatal CSF1-Fc treatment did not alter somatic growth, and did not increase the blood monocyte count. Instead, there was a substantial increase in the size of liver in both control and LBW rats, and the treatment greatly exacerbated the lipid droplet accumulation seen in the dexamethasone LBW model...
December 21, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29351394/bile-acid-profiles-within-the-enterohepatic-circulation-in-a-diabetic-rat-model-after-bariatric-surgeries
#5
Meng Wei, Yi Shao, Qiao-Ran Liu, Qun-Zheng Wu, Xiang Zhang, Ming-Wei Zhong, Shao-Zhuang Liu, Guang-Yong Zhang, San-Yuan Hu
Bile acids (BAs), which are synthesized in the liver and cycled in the enterohepatic circulation, have been recognized as signaling molecules by activating their receptors in the intestine and liver. Serum taurine-conjugated BAs have been shown to be elevated after bariatric surgeries, although the postoperative BA profiles within the enterohepatic circulation have not been investigated. Clarification of these profiles could help explain the mechanisms by which bariatric surgery leads to BA profile alterations and subsequent metabolic effects...
December 21, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29351389/proliferation-of-hepatic-stellate-cells-mediated-by-yap-and-taz-contributes-to-liver-repair-and-regeneration-after-liver-ischemia-reperfusion-injury
#6
Takanori Konishi, Rebecca M Schuster, Alex B Lentsch
Yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ) are key regulators of cell proliferation and organ size, however, their physiological contribution after liver injury has not been fully understood. In this study, we sought to determine the role of YAP and TAZ during liver recovery after ischemia-reperfusion (I/R). A murine model of partial (70%) I/R was used to induce liver injury and study the reparative and regenerative response. After liver injury, there was marked activation and proliferation of hepatic stellate cells...
January 11, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29351317/hafts-are-novel-lncrna-transcripts-from-aflatoxin-exposure
#7
B Alex Merrick, Justin S Chang, Dhiral P Phadke, Meredith A Bostrom, Ruchir R Shah, Xinguo Wang, Oksana Gordon, Garron M Wright
The transcriptome can reveal insights into precancer biology. We recently conducted RNA-Seq analysis on liver RNA from male rats exposed to the carcinogen, aflatoxin B1 (AFB1), for 90 days prior to liver tumor onset. Among >1,000 differentially expressed transcripts, several novel, unannotated Cufflinks-assembled transcripts, or HAfTs (Hepatic Aflatoxin Transcripts) were found. We hypothesized PCR-cloning and RACE (rapid amplification of cDNA ends) could further HAfT identification. Sanger data was obtained for 6 transcripts by PCR and 16 transcripts by 5'- and 3'-RACE...
2018: PloS One
https://www.readbyqxmd.com/read/29351246/addition-of-berberine-to-preservation-solution-in-an-animal-model-of-ex-vivo-liver-transplant-preserves-mitochondrial-function-and-bioenergetics-from-the-damage-induced-by-ischemia-reperfusion
#8
Rui Miguel Martins, Anabela Pinto Rolo, João Soeiro Teodoro, Emanuel Furtado, Rui Caetano Oliveira, José Guilherme Tralhão, Carlos Marques Palmeira
Liver transplantation is a therapeutic regimen to treat patients with non-malignant end-stage liver diseases and malignant tumors of hepatic origin. The ischemia/reperfusion (I/R) injury in liver transplantation is associated with disruption of mitochondrial function in the hepatic parenchyma. Several studies have been conducted in animal models to identify pharmacological therapeutic strategies to minimize the injury induced by the cold/warm I/R in liver transplantation. Most of these studies were conducted in unrealistic conditions without the potential to be translated to clinical usage...
January 19, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29350831/randomized-trial-on-extended-versus-modified-right-lobe-grafts-in-live-donor-liver-transplantation
#9
Christi Titus Varghese, Viju Kumar Bharathan, Unnikrishnan Gopalakrishnan, Dinesh Balakrishnan, Ramachandran N Menon, Othiyil Vayoth Sudheer, Puneet Dhar, Sudhindran Surendran
Despite advances in the practice of live donor liver transplantation (LDLT), the optimum surgical approach with respect to the middle hepatic vein (MHV) in right lobe LDLT remains undefined. We designed a randomized trial to compare the early postoperative outcomes in recipients and donors between extended right lobe grafts (ERG: transection plane was maintained to the left of MHV, and division of MHV performed beyond the segment VIII vein) and modified right lobe grafts (MRG: transection plane was maintained to the right of MHV, the segment V and VIII drainage was reconstructed using a conduit of recipient portal vein)...
January 19, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29350771/recombinant-relaxin-protects-liver-transplants-from-ischemia-damage-via-hepatocyte-glucocorticoid-receptor-from-bench-to-bedside
#10
Shoichi Kageyama, Kojiro Nakamura, Takehiro Fujii, Bibo Ke, Rebecca A Sosa, Elaine F Reed, Nakul Datta, Ali Zarrinpar, Ronald W Busuttil, Jerzy W Kupiec-Weglinski
Hepatic ischemia-reperfusion injury (IRI) represents a major risk factor of early graft dysfunction and acute/chronic rejection as well as a key obstacle to expanding the donor pool in orthotopic liver transplantation (OLT). Although glucocorticoid receptor (GR) signaling may enhance cytoprotective programs, clinical use of glucocorticoid is limited due to adverse effects, while clinical relevance of GR-facilitated cytoprotection in OLT remains unknown. We aimed to evaluate the significance of hepatic GR in clinical OLT and verify the impact of recombinant human relaxin (rhRLX), which may function as GR agonist in tissue/disease-specific manner...
January 19, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29350757/hepatoprotective-effects-of-sophoricoside-against-fructose-induced-liver-injury-via-regulating-lipid-metabolism-oxidation-and-inflammation-in-mice
#11
Wenfeng Li, Yalong Lu
The dried fruit of Sophora japonica L. is a traditional Chinese herb tea rich in sophoricoside that is an isoflavone glycoside. The aim of current study was to investigate the hepatic protective effect of sophoricoside in high fructose (HF) diet fed mice. Healthy male mice were fed 30% fructose water and treated 80 and 160 mg/kg·bw sophoricoside continuously for 8 wk. Our data showed that administration of sophoricoside at 80 and 160 mg/kg·bw observably decreased the body weight and liver weight in HF-fed mice...
January 19, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29350750/the-hepatoprotective-effect-of-selenium-enriched-yeast-and-gum-arabic-combination-on-carbon-tetrachloride-induced-chronic-liver-injury-in-rats
#12
Mohammed Hamid, Yassin Abdulrahim, Dandan Liu, Gang Qian, Alamzeb Khan, Kehe Huang
The antioxidant and anti-inflammatory effects of selenium-enriched yeast (SY) and Gum Arabic (GA) have been reported. This study aimed to determine the hepatoprotective effect of SY and GA combination on carbon tetrachloride (CCl4 )-induced chronic liver injury in rats and to explore their synergistic mechanisms of action. Forty adult male Wistar rats randomly allotted to 5 groups: (A) worked as control, (B) was administered CCl4 , (C-E) were fed daily by GA, SY, and GA+SY respectively after mixing with basal diet, following CCl4 -intoxication...
January 19, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29350678/pik3r3-regulates-ppar%C3%AE-expression-to-stimulate-fatty-acid-%C3%AE-oxidation-and-decrease-hepatosteatosis
#13
Xi Yang, Yinjia Fu, Fuqing Hu, Xuelai Luo, Junbo Hu, Guihua Wang
Phosphatidylinositol 3-kinase (PI3K) signaling plays an important role in the regulation of cellular lipid metabolism and non-alcoholic fatty liver disease (NAFLD). However, little is known about the role of the regulatory subunits of PI3K in lipid metabolism and NAFLD. In this study, we characterized the functional role of PIK3R3 in fasting-induced hepatic lipid metabolism. In this study, we showed that the overexpression of PIK3R3 promoted hepatic fatty acid oxidation via PIK3R3-induced expression of PPARα, thus improving the fatty liver phenotype in high-fat diet (HFD)-induced mice...
January 19, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29350417/hepatitis-c-virus-core-protein-induces-dysfunction-of-liver-sinusoidal-endothelial-cell-by-down-regulation-of-silent-information-regulator-1
#14
Li-Jie Sun, Jian-Wu Yu, Yu-Guang Shi, Xiao-Yu Zhang, Meng-Ni Shu, Mo-Yang Chen
Objective Hepatic fibrosis is a frequent feature of chronic hepatitis C virus (HCV) infection. Some evidence has suggested the potential role of silent information regulator 1 (SIRT1) in organ fibrosis. The aim of this study was to investigate the effect of HCV core protein on expression of SIRT1 of liver sinusoidal endothelial cell (LSEC) and function of LSEC. Methods LSECs were co-cultured with HepG2 cells or HepG2 cells expressing HCV core protein and LSECs cultured alone were used as controls. After co-culture, the activity and expression levels of mRNA and protein of SIRT1 in LSEC were detected by a SIRT1 fluorometric assay kit, real time-PCR (RT-PCR), Western blot, respectively...
January 19, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29350286/changes-of-fibroscan-apri-and-fib-4-in-chronic-hepatitis-b-patients-with-significant-liver-histological-changes-receiving-3-year-entecavir-therapy
#15
Qiang Li, Liang Chen, Yu Zhou
Noninvasive fibrosis tests have been used widely for evaluation of liver fibrosis in patients with chronic hepatitis B (CHB). We aimed to investigate the influence of antiviral treatment on FibroScan, APRI, and FIB-4 in CHB patients with significant liver histological changes (SLHC) defined as inflammatory grade ≥ A2 and/or fibrosis stage ≥ F2. A total of 104 CHB patients with SLHC at the baseline were included. FibroScan, APRI, and FIB-4 values were compared before and after 3-year entecavir (ETV) treatment...
January 19, 2018: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/29350162/new-parvovirus-associated-with-serum-hepatitis-in-horses-after-inoculation-of-common-biological-product
#16
Thomas J Divers, Bud C Tennant, Arvind Kumar, Sean McDonough, John Cullen, Nishit Bhuva, Komal Jain, Lokendra Singh Chauhan, Troels Kasper Høyer Scheel, W Ian Lipkin, Melissa Laverack, Sheetal Trivedi, Satyapramod Srinivasa, Laurie Beard, Charles M Rice, Peter D Burbelo, Randall W Renshaw, Edward Dubovi, Amit Kapoor
Equine serum hepatitis (i.e., Theiler's disease) is a serious and often life-threatening disease of unknown etiology that affects horses. A horse in Nebraska, USA, with serum hepatitis died 65 days after treatment with equine-origin tetanus antitoxin. We identified an unknown parvovirus in serum and liver of the dead horse and in the administered antitoxin. The equine parvovirus-hepatitis (EqPV-H) shares <50% protein identity with its phylogenetic relatives of the genus Copiparvovirus. Next, we experimentally infected 2 horses using a tetanus antitoxin contaminated with EqPV-H...
February 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29349944/investigation-of-clinical-and-pathological-relationships-between-adult-and-pediatric-type-nash-in-korean-children
#17
Jungmin Yoon, Byung Han Park, Ja Hye Kim, Jin Hwa Moon, Young Ho Lee, Se Min Jang, Yong Joo Kim
BACKGROUND: Histologically, nonalcoholic steatohepatitis (NASH) is categorized into adult-type (type 1) and pediatric-type (type 2). The origination of the histological difference between the two types and how they differ clinically remain uncertain. We aimed to understand the incidence and clinical characteristics of the two types of NASH in Korean children, and to investigate the association between their pathological type and clinical characteristics, using anthropometric and laboratory data...
January 29, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29349902/association-between-pre-sarcopenia-sarcopenia-and-bone-mineral-density-in-patients-with-chronic-hepatitis-c
#18
Tatiana Bering, Kiara G D Diniz, Marta Paula P Coelho, Diego A Vieira, Maria Marta S Soares, Adriana M Kakehasi, Maria Isabel T D Correia, Rosângela Teixeira, Dulciene M M Queiroz, Gifone A Rocha, Luciana D Silva
BACKGROUND: Preserved skeletal muscle is essential for the maintenance of healthy bone. Loss of bone mineral density (BMD) and muscle strength, considered a predictor of BMD, have been demonstrated in patients with cirrhosis, but they are poorly studied in chronic hepatitis C (CHC) without cirrhosis. Thus, we aimed to evaluate the prevalence of low BMD and its association with body composition, muscle strength, and nutritional status in CHC. METHODS: One hundred and four subjects [mean age, 50...
January 19, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29348900/validation-of-risk-prediction-models-for-the-development-of-hbv-related-hcc-a-retrospective-multi-center-10-year-follow-up-cohort-study
#19
Yeon Seok Seo, Byoung Kuk Jang, Soon Ho Um, Jae Seok Hwang, Kwang-Hyub Han, Sang Gyune Kim, Kwan Sik Lee, Seung Up Kim, Young Seok Kim, Jung Il Lee
Recently, modified REACH-B (mREACH-B) risk prediction model for hepatocellular carcinoma (HCC) development was proposed. We validated the accuracy of the mREACH-B model and compared its accuracy with those of other prediction models. Between 2006 and 2012, 1,241 patients with chronic hepatitis B (CHB) were recruited. All patients underwent transient elastography at enrollment. The median age of the study population (840 males, 401 females) was 49 years. The median PAGE-B, LSM-HCC, and mREACH-B values were 10, 10, and 8, respectively...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348606/amp-activated-protein-kinase-agonist-n6-3-hydroxyphenyl-adenosine-protects-against-fulminant-hepatitis-by-suppressing-inflammation-and-apoptosis
#20
Jin Li, Bo Chen, Liping Zhong, Feng Gao, Haibo Zhu, Fengzhong Wang
Both AMP-activated protein kinase (AMPK) agonist and inhibitor have been reported to protect against fulminant hepatitis, implying that AMPK may play a complicated role in the development of fulminant hepatitis. In this study, we exploited whether the novel AMPK agonist N6-(3-hydroxyphenyl)adenosine (named as M1) exerted protective effects on fulminant hepatitis and whether its beneficial effects were AMPK-dependent. Results showed that intraperitoneal injection of M1 improved liver function, ameliorated liver injury and finally raised the survival rate in D-galactosamine/lipopolysaccharide (GalN/LPS)-treated mice...
January 18, 2018: Cell Death & Disease
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