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https://www.readbyqxmd.com/read/29224133/epidemiology-of-chronic-hepatitis-b-virus-in-ireland-using-routinely-collected-surveillance-and-administrative-data-2004-2014
#1
Caroline E van Gemert, Niamh Murphy, Tara A Mitchell, Margaret E Hellard, Thornton Thornton
BACKGROUND: Ireland has a low prevalence of chronic hepatitis B virus (HBV) infection; however, there are limited recently published epidemiological data. This study aimed to describe the epidemiology of chronic HBV in Ireland between 2004 and 2014 using routine surveillance data and identify and interrogate additional data sources in Ireland to complement the interpretation of HBV surveillance data. METHODS: Routinely collected passive surveillance data of notified cases of HBV infection were collated for 2004-2014...
December 9, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29223705/functional-hepatocyte-clusters-on-bioactive-blend-silk-matrices-towards-generating-bioartificial-liver-constructs
#2
Guru Janani, Samit K Nandi, Biman B Mandal
The creation of in vitro functional hepatic tissue simulating micro-environmental niche of native liver is a keen area of research due to its demand in bioartificial liver (BAL) and cell-based tissue engineering. Here, we investigated the potential of novel blend (BA) silk scaffold fabricated by blending mulberry (Bombyx mori, BM) silk fibroin with cell adhesion motif (RGD) rich non-mulberry (Antheraea assamensis, AA) silk fibroin in generating a functional liver construct. Three-dimensional (3D) porous silk scaffolds (BM, AA and BA) were physico-chemically characterized and functionally evaluated using human hepatocarcinoma cells (HepG2) and primary neonatal rat hepatocytes...
December 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29223619/differential-effects-of-hepatic-cirrhosis-on-the-intrinsic-clearances-of-sorafenib-and-imatinib-by-cyps-in-human-liver
#3
Michael Murray, Tina B Gillani, Sussan Ghassabian, Robert J Edwards, Tristan Rawling
The tyrosine kinase inhibitors sorafenib and imatinib are important in the treatment of a range of cancers but adverse effects in some patients necessitate dosage modifications. CYP3A4 has a major role in the oxidation of sorafenib to its N-oxide and N-hydroxymethyl metabolites and also acts in concert with CYP2C8 to mediate imatinib N-demethylation. CYP3A4 expression and function are impaired in patients with advanced liver disease, whereas the functions of CYP2C enzymes are relatively preserved. We evaluated the biotransformation of sorafenib and imatinib in well-characterized microsomal fractions from 17 control subjects and 19 individuals with hepatic cirrhosis of varying severity...
December 6, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29223536/polymeric-gels-for-intravaginal-drug-delivery
#4
REVIEW
Michael T Cook, Marc B Brown
Intravaginal drug delivery can elicit a local effect, or deliver drugs systemically without hepatic first pass metabolism. There are a number of emerging areas in intravaginal drug delivery, but the vagina is a challenging route of administration, due to the clearance mechanisms present which result in poor retention of dosage forms, and the potential for irritation and other adverse reactions. Gel formulations are desirable due to the ease of application, spreading and that they cause little to no discomfort to the patient...
December 6, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29223453/hbv-reactivation-in-rheumatic-diseases-patients-under-therapy-a-meta-analysis
#5
REVIEW
Mohsen Moghoofei, Shayan Mostafaei, Amir Ashraf-Ganjouei, Hoda Kavosi, Mahdi Mahmoudi
BACKGROUND: Hepatitis B is one of the most common infectious diseases worldwide. In patients undergoing immunosuppressive therapy such as rheumatic diseases, reactivation of Hepatitis B virus (HBV) is considered clinically important. This systematic review and meta-analysis were performed to determine the prevalence rate of HBV reactivation in rheumatic patients from different parts of the world. It is worth mentioning that the aim of the current study was to report the prevalence of HBV with the application of meta-analysis...
December 6, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29222328/fructose-and-glucose-regulate-mammalian-target-of-rapamycin-complex-1-and-can-activate-lipogenic-gene-expression-via-distinct-pathways
#6
Yue Hu, Ivana Semova, Xiaowei Sun, Hong Kang, Satyapal Chahar, Anthony N Hollenberg, David Masson, Matthew D Hirschey, Ji Miao, Sudha B Biddinger
Though calorically equivalent to glucose, fructose appears to be more lipogenic, leading to dyslipidemia, fatty liver disease, cardiovascular disease, and diabetes. To better understand how fructose induces lipogenesis, we compared the effects of fructose and glucose on the mTORC1 signaling node, a central regulator of lipogenesis. We found that fructose acutely and transiently suppressed mTORC1 signaling in vitro and in vivo. The constitutive activation of mTORC1 reduced hepatic lipogenic gene expression and produced hypotriglyceridemia after one week of fructose feeding...
December 8, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29221787/evaluation-of-alternative-serum-biomarkers-to-monitor-the-progression-of-chronic-hbv-and-hcv-infection
#7
S Tsiomita, U Georgopoulou, P P Doumba, J Koskinas, K Adamidis, C Papaloukas, G Thyphronitis
Chronic hepatitis B virus (HBV) and hepatitis C virus (HCV) infections are among the most serious health conditions affecting about 600 million people worldwide leading to a number of severe liver diseases. Due to the lack of warning signs or mild symptoms during the early stage of the infection, a molecular signature associated with disease progression would be useful. Based on our recent paper where candidate biomarkers were determined through topological and modularity analysis of protein interaction networks (PINs), this study was focused on the evaluation of MIF, TNFRSF1A, FAS and TMSB4X as diagnostic biomarkers in chronic HBV and HCV infections...
December 5, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29221492/elevated-serum-%C3%AE-2-microglobulin-in-individuals-coinfected-with-hepatitis-b-and-hepatitis-d-virus-in-a-rural-settings-in-southwest-nigeria
#8
Lawrence Ehis Okoror, Ayodele Oluwaseun Ajayi, Oluwaseun Benjamin Ijalana
OBJECTIVE: Coinfection of hepatitis B virus (HBV) with hepatitis D virus (HDV) has being reported to increase severity of progression to hepatocellular carcinoma (HCC) and liver cirrhosis (LC). Beta microglobulin (2βM) which is present on the surfaces of blood cells in acceptable levels is a tumor marker which may become elevated in disease conditions. This study hence observed the prevalence of HBV and HDV coinfection in a rural population and their 2βM concentration. RESULTS: Of the 368 samples, 66 (17...
December 8, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29221441/time-varying-serum-gradient-of-hepatitis-b-surface-antigen-predicts-risk-of-relapses-after-off-na-therapy
#9
Nai-Hsuan Chien, Yen-Tsung Huang, Chun-Ying Wu, Chi-Yang Chang, Ming-Shiang Wu, Jia-Horng Kao, Lein-Ray Mo, Chi-Ming Tai, Chih-Wen Lin, Tzeng-Huey Yang, Jaw-Town Lin, Yao-Chun Hsu
BACKGROUND: The serum gradient of hepatitis B surface antigen (HBsAg) varies over time after cessation of nucleos(t)ide analog (NA) treatment in patients with chronic hepatitis B (CHB). The association between the time-varying HBsAg serum gradient and risk of relapse has not been elucidated. METHODS: This multicenter cohort study prospectively enrolled CHB patients who discontinued 3 year-NA treatment. Eligible patients were serologically negative for HBeAg and viral DNA at NA cessation...
December 8, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/29221184/hepatitis-b-virus-x-protein-inhibits-apoptosis-by-modulating-endoplasmic-reticulum-stress-response
#10
Jia Li, Jiang He, Yongming Fu, Xingwang Hu, Lun-Quan Sun, Yan Huang, Xuegong Fan
Chronic Hepatitis B virus (HBV) infection is a major risk of hepatocellular carcinoma (HCC) worldwide. Hepatitis B virus X protein (HBx) is encoded by one of the four open reading frames of HBV, and is well known as an important coactivator for HBV replication and HBV-associated hepatocellular carcinogenesis. However, its role in keeping cells from apoptosis to promote HCC proliferation remains controversial. Here, we used HBx expressing HCC cells as a model, to investigate the mechanism of HBx-mediated cellular response to endoplasmic reticulum (ER) stress...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220868/incidence-and-prevalence-of-hepatitis-b-in-patients-with-diabetes-mellitus-in-the-uk-a-population-based-cohort-study-using-the-uk-clinical-practice-research-datalink
#11
Germano L C Ferreira, Cinzia Marano, Laurence De Moerlooze, Adrienne Guignard, Yang Feng, Yassine El Hahi, Tjeerd van Staa
We assessed the incidence and prevalence of hepatitis B (Hep B) in patients with or without diabetes mellitus using the UK Clinical Practice Research Datalink. This was a retrospective, observational study of diabetic and non-diabetic cohorts aged 0-80 years using Clinical Practice Research Datalink (NCT02324218). Incidence rates (IR) for each cohort were calculated. Crude and adjusted (Poisson Regression) IR ratios (IRR) were estimated with 95% confidence intervals (CI) to compare the cohorts. Hep B prevalence stratified by age, and hospitalisation related to Hep B were also calculated...
December 8, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29219628/penetration-enhancer-containing-spanlastics-pecss-for-transdermal-delivery-of-haloperidol-in-vitro-characterization-ex-vivo-permeation-and-in-vivo-biodistribution-studies
#12
Abdurrahman M Fahmy, Doaa Ahmed El-Setouhy, Ahmed B Ibrahim, Basant A Habib, Saadia A Tayel, Noha A Bayoumi
Haloperidol (Hal) is one of the widely used antipsychotic drugs. When orally administered, it suffers from low bioavailability due to hepatic first pass metabolism. This study aimed at developing Hal-loaded penetration enhancer-containing spanlastics (PECSs) to increase transdermal permeation of Hal with sustained release. PECSs were successfully prepared using ethanol injection method showing reasonable values of percentage entrapment efficiency, particle size, polydispersity index and zeta potential. The statistical analysis of the ex vivo permeation parameters led to the choice of F1L - made of Span® 60 and Tween® 80 at the weight ratio of 4:1 along with 1% w/v Labrasol® - as the selected formula (SF)...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29218813/association-of-pnpla3-rs738409-polymorphism-with-liver-steatosis-but-not-with-cirrhosis-in-patients-with-hbv-infection-systematic-review-with-meta-analysis
#13
REVIEW
Saman Ghalamkari, Heidar Sharafi, Seyed Moayed Alavian
BACKGROUND AND AIM: Hepatitis B virus (HBV) infection is a worldwide health issue and is well known to be the main cause of developing secondary liver complications such as cirrhosis and hepatocellular carcinoma (HCC). The PNPLA3 rs738409 polymorphism has been investigated conclusively with occurrence risk of steatosis and cirrhosis. Therefore, performing a meta-analysis of the available studies with the aim of clarifying the association between rs738409 and occurrence risk of steatosis and cirrhosis among HBV-infected patients would be helpful...
December 7, 2017: Journal of Gene Medicine
https://www.readbyqxmd.com/read/29218707/food-effect-on-rosuvastatin-disposition-and-low-density-lipoprotein-cholesterol
#14
Cheynne C McLean, Wendy A Teft, Bridget L Morse, Steven E Gryn, Robert A Hegele, Richard B Kim
Rosuvastatin is commonly prescribed for the treatment of hypercholesterolemia and hepatic transporter-mediated accumulation in the liver enhances its efficacy. Current guidelines indicate no preference for fed or fasted rosuvastatin administration. We investigated the association between food intake and rosuvastatin disposition in healthy subjects and low-density lipoprotein cholesterol (LDL-C) lowering effects among patients taking rosuvastatin. We demonstrate administration with food resulted in a near 40% reduction of rosuvastatin exposure in healthy Asian (n=12) and Caucasian (n=11) subjects...
December 8, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29218660/how-bariatric-surgery-affects-liver-volume-and-fat-density-in-nafld-patients
#15
Ran B Luo, Toshiaki Suzuki, Jonathan C Hooker, Yesenia Covarrubias, Alexandra Schlein, Shanglei Liu, Jeffrey B Schwimmer, Scott B Reeder, Luke M Funk, Jacob A Greenberg, Guilherme M Campos, Bryan J Sandler, Santiago Horgan, Claude B Sirlin, Garth R Jacobsen
INTRODUCTION: Nonalcoholic fatty liver disease (NAFLD) is an epidemic in the obese population. Bariatric surgery is known to reverse multiple metabolic complications of obesity such as diabetes, dyslipidemia, and NAFLD, but the timing of liver changes has not been well described. MATERIALS AND METHODS: This was an IRB-approved, two-institutional prospective study. Bariatric patients received MRIs at baseline and after a pre-operative liquid diet. Liver biopsies were performed during surgery and if NAFLD positive, the patients received MRIs at 1, 3, and 6 months...
December 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29218508/use-of-huh6-and-other-human-derived-hepatoma-lines-for-the-detection-of-genotoxins-a-new-hope-for-laboratory-animals
#16
Monika Waldherr, Miroslav Mišík, Franziska Ferk, Jana Tomc, Bojana Žegura, Metka Filipič, Wolfgang Mikulits, Sören Mai, Oskar Haas, Wolfgang W Huber, Elisabeth Haslinger, Siegfried Knasmüller
Cell lines which are currently used in genotoxicity tests lack enzymes which activate/detoxify mutagens. Therefore, rodent-derived liver preparations are used which reflect their metabolism in humans only partly; as a consequence misleading results are often obtained. Previous findings suggest that certain liver cell lines express phase I/II enzymes and detect promutagens without activation; however, their use is hampered by different shortcomings. The aim of this study was the identification of a suitable cell line...
December 7, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29218243/elevated-hbxip-expression-is-associated-with-aggressive-phenotype-and-poor-prognosis-in-esophageal-squamous-cell-carcinoma
#17
Honggang Xia, Lan Ma, Jing Li, Hongyu Bai, Dongbin Wang
The oncoprotein hepatitis B virus X-interacting protein (HBXIP) has been suggested to play an essential role in several malignancies. However, the clinicopathological significance and prognostic value of HBXIP expression in esophageal squamous cell carcinoma (ESCC) is still unknown. Therefore the aim of this study was to characterize HBXIP expression and its prognostic value in ESCC. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot were performed to assess the mRNA and protein expression of HBXIP in ESCC tissues and cell lines...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/29218046/tlr2-expression-in-peripheral-cd4-t-cells-promotes-th17-response-and-is-associated-with-disease-aggravation-of-hepatitis-b-virus-related-acute-on-chronic-liver-failure
#18
Chunli Xu, Yinping Lu, Xin Zheng, Xuemei Feng, Xuecheng Yang, Joerg Timm, Jun Wu, Baoju Wang, Mengji Lu, Dongliang Yang, Jia Liu
Th17 responses have been shown to play crucial roles in the pathogenesis of hepatitis B virus (HBV)-associated acute-on-chronic liver failure (ACLF). The mechanism underlying the enhanced Th17 responses in these patients remains largely unclear. Here we investigated toll-like receptors (TLRs) expression in peripheral T cells and their roles in Th17 cell differentiation and disease aggravation in ACLF patients. 18 healthy subjects (HS), 20 chronic HBV-infected (CHB) patients, and 26 ACLF patients were enrolled and examined for TLRs expression in peripheral blood mononuclear cells (PBMCs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29217749/hepatitis-delta-virus-persists-during-liver-regeneration-and-is-amplified-through-cell-division-both-in-vitro-and-in-vivo
#19
Katja Giersch, Oliver D Bhadra, Tassilo Volz, Lena Allweiss, Kristoffer Riecken, Boris Fehse, Ansgar W Lohse, Joerg Petersen, Camille Sureau, Stephan Urban, Maura Dandri, Marc Lütgehetmann
OBJECTIVE: Hepatitis delta virus (HDV) was shown to persist for weeks in the absence of HBV and for months after liver transplantation, demonstrating the ability of HDV to persevere in quiescent hepatocytes. The aim of the study was to evaluate the impact of cell proliferation on HDV persistence in vitro and in vivo. DESIGN: Genetically labelled human sodium taurocholate cotransporting polypeptide (hNTCP)-transduced human hepatoma(HepG2) cells were infected with HBV/HDV and passaged every 7 days for 100 days in the presence of the entry inhibitor Myrcludex-B...
December 7, 2017: Gut
https://www.readbyqxmd.com/read/29217477/activation-of-hepatic-nogo-b-receptor-expression-a-new-anti-liver-steatosis-mechanism-of-statins
#20
Wenwen Zhang, Xiaoxiao Yang, Yuanli Chen, Wenquan Hu, Lipei Liu, Xiaomeng Zhang, Mengyang Liu, Lei Sun, Ying Liu, Miao Yu, Xiaoju Li, Luyuan Li, Yan Zhu, Qing Robert Miao, Jihong Han, Yajun Duan
Deficiency of hepatic Nogo-B receptor (NgBR) expression activates liver X receptor α (LXRα) in an adenosine monophosphate-activated protein kinase α (AMPKα)-dependent manner, thereby inducing severe hepatic lipid accumulation and hypertriglyceridemia. Statins have been demonstrated non-cholesterol lowering effects including anti-nonalcoholic fatty liver disease (NAFLD). Herein, we investigated if the anti-NAFLD function of statins depends on activation of NgBR expression. In vivo, atorvastatin protected apoE deficient or NgBR floxed, but not hepatic NgBR deficient mice, against Western diet (WD)-increased triglyceride levels in liver and serum...
December 4, 2017: Biochimica et Biophysica Acta
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