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hepatitis b patterns

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https://www.readbyqxmd.com/read/28208002/expression-of-hepatocyte-hepatitis-b-core-antigen-and-hepatitis-b-surface-antigen-as-a-marker-in-the-management-of-chronic-hepatitis-b-patients
#1
Sun Young Yim, Tae Hyung Kim, Suh Sang Jun, Eun Sun Kim, Bora Keum, Yeon Seok Seo, Hyung Joon Yim, Yoon Tae Jeen, Hoon Jai Chun, Hong Sik Lee, Soon Ho Um, Chang Duck Kim, Nam Hee Won, Ho Sang Ryu
Background/Aims: We aimed to clarify the association of HBsAg/HBcAg with the disease status and treatment response in patients with chronic hepatitis B (CHB). Methods: We investigated 171 biopsy-proven entecavir-treated CHB patients (109 HBeAg-positive, 62 HBeAg-negative). HBcAg expression was positive when ≥10% of hepatocytes stained, and classified into nuclear, mixed, and cytoplasmic patterns. HBsAg expressions were intracytoplasmic (diffuse, globular, and submembranous) and membranous...
February 17, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28207518/virological-and-serological-features-of-acute-hepatitis-b-in-adults
#2
Xiaofei Du, Yali Liu, Lina Ma, Junfeng Lu, Yi Jin, Shan Ren, Zhimin He, Xinyue Chen
Various viral kinetics among patients with acute hepatitis B (AHB) have been observed in clinical practice. This study investigated the virological, biochemical, and serological characteristics of AHB in adults.A total of 192 adult patients with AHB were recruited between December 2010 and January 2014. The quantification of biochemical and serologic markers for hepatitis B virus (HBV) infection was monitored from the onset.Of the 192 patients, 113 patients were followed up. One patient died due to acute liver failure, 2 developed chronic HBV infection...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28207250/dna-product-formation-in-female-sprague-dawley-rats-following-polyhalogenated-aromatic-hydrocarbon-phah-exposure
#3
Lina Gao, Esra Mutlu, Leonard B Collins, Nigel J Walker, Hadley J Hartwell, James R Olson, Wei Sun, Avram Gold, Louise M Ball, James A Swenberg
DNA oxidation damage has been regarded as one of the possible mechanisms for the hepatic carcinogenesis of dioxin-like compounds (DLCs). In this study, we evaluated the toxic equivalency factor (TEF) from the standpoint of induced DNA oxidation products and their relationship to toxicity and carcinogenicity. Nine DNA oxidation products were analyzed in the liver of female Sprague-Dawley rats exposed to 2,3,7,8-tetrachlorodibenzo-pdioxin (TCDD) alone or the tertiary mixture of TCDD, 3,3',4,4',5-pentachlorobiphenyl (PCB 126), and 2,3,4,7,8-pentachlorodibenzofuran (PeCDF) by gavage for 14, 31, and 53 weeks (5 days/week) by LC-MS/MS: 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxo-dGuo); 1,N(6)-etheno-2'-deoxyadenosine (1,N(6)-εdAdo); N(2),3-ethenoguanine (N(2),3-εG); 7-(2-oxoethly)guanine (7-OEG); 1,N(2)-etheno-2'-deoxyguanosine (1,N(2)-εdGuo); malondialdehyde (M1dGuo); acrolein (AcrdGuo); crotonaldehyde (CrdGuo); and 4-hydroxynonenal (HNEdGuo) derived 2'-deoxyguanosine adducts...
February 16, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28196048/the-phs-increased-risk-label-is-associated-with-nonutilization-of-hundreds-of-organs-per-year
#4
Michael L Volk, Amber R Wilk, Cameron Wolfe, Daniel R Kaul
BACKGROUND: The Public Health Service "Increased Risk" (PHS IR) designation identifies donors at increased risk of transmitting hepatitis B, C, and human immunodeficiency virus. Although the risk remains very low in the era of nucleic acid testing, we hypothesized that this label may result in decreased organ utilization. METHODS: Organ Procurement and Transplantation Network (OPTN) data were used to compare utilization rates between PHS-IR and non-PHS-IR donors, as well as to compare export rates and variation in utilization...
February 11, 2017: Transplantation
https://www.readbyqxmd.com/read/28179493/nutritional-and-lipid-modulation-of-pcsk9-effects-on-cardiometabolic-risk-factors
#5
REVIEW
Jacqueline A Krysa, Teik Chye Ooi, Spencer D Proctor, Donna F Vine
Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a serine protease involved in the regulation of LDL receptor (LDLR) expression and apolipoprotein B lipoprotein cholesterol metabolism. Hepatic PCSK9 protein expression, activity, and secretion have been shown to affect cholesterol homeostasis. An upregulation of hepatic PSCK9 protein leads to increased LDLR degradation, resulting in decreased uptake of apoB lipoproteins and a consequent increase in the plasma concentration of these lipoproteins, including LDL and chylomicron remnants...
February 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28119260/percutaneous-liver-biopsy-retrospective-study-of-primary-and-secondary-hepatic-lymphoma-in-twenty-one-patients
#6
Yan-Feng Bai, Ji-Min Liu, Xiu-Ming Zhang, Chao-Zhe Jiang, Xiao Xu, Shu-Sen Zheng
BACKGROUND: Hepatic lymphoma (HL) is categorized as primary and secondary hepatic lymphoma (PHL and SHL). This disorder can present as hepatic mass or mass-like lesion. Chemotherapy often is the first line treatment for patients with HL. Thus, an accurate pre-management histological diagnosis is essential to potentially improve clinical outcomes. The present study was to explore the prevalence of HL in ultrasound guided liver biopsies for hepatic mass or mass-like lesions, to investigate HL associated clinicopathological features, to raise the awareness of early recognition and proper diagnosis of this entity, and to assess specimen adequacy in needle core biopsy...
February 2017: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/28112049/kidney-disease-in-hepatitis-b-surface-antigen-positive-children-experience-from-a-centre-in-south-west-nigeria-and-a-review-of-the-nigerian-literature
#7
Adanze O Asinobi, Adebowale D Ademola, Clement A Okolo, Adedayo A Adepoju, Susan M Samuel, Wendy E Hoy
BACKGROUND: Kidney disease is an important extra-hepatic manifestation of hepatitis B virus (HBV) infection. However, there is paucity of recent literature on kidney disease in children and adolescents with HBV infection from several parts of sub-Saharan Africa including Nigeria. OBJECTIVE: To review the pattern of kidney disease in hepatitis B surface antigen (HBsAg)-positive children and adolescents seen at a tertiary hospital in south-west Nigeria. METHODS: A retrospective study was undertaken of HBsAg-seropositive children with kidney disease managed at University College Hospital, Ibadan, from January 2004 to December 2015...
January 23, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28105934/charm-discovery-of-combinatorial-chromatin-modification-patterns-in-hepatitis-b-virus-x-transformed-mouse-liver-cancer-using-association-rule-mining
#8
Sung Hee Park, Sun-Min Lee, Young-Joon Kim, Sangsoo Kim
BACKGROUND: Various chromatin modifications, identified in large-scale epigenomic analyses, are associated with distinct phenotypes of different cells and disease phases. To improve our understanding of these variations, many computational methods have been developed to discover novel sites and cell-specific chromatin modifications. Despite the availability of existing methods, there is still room for further improvement when they are applied to resolve the histone code hypothesis. Hence, we aim to investigate the development of a computational method to provide new insights into de novo combinatorial pattern discovery of chromatin modifications to characterize epigenetic variations in distinct phenotypes of different cells...
December 13, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/28093193/hbxip-over-expression-as-an-independent-biomarker-for-cervical-cancer
#9
Nan Li, Yixuan Wang, Shuanlong Che, Yang Yang, Junjie Piao, Shuangping Liu, Zhenhua Lin
BACKGROUND: Emerging evidence demonstrated that hepatitis B virus X-interacting protein (HBXIP) has broad roles in cancers. However, high-level expression of HBXIP has been correlated with human malignancies, suggesting roles in carcinogenesis and tumor progression. The aim of the study is to investigate the role and mechanism of HBXIP oncogene and the correlation to the clinicopathological status in cervical cancers. METHODS: A total of 107 cervical cancer patients with strict follow-up, 105 cervical intraepithelial neoplasia (CIN) and 31 normal cervical epithelia samples were selected for immunohistochemical (IHC) staining of HBXIP protein...
January 16, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28068755/systematic-quantitation-of-histologic-patterns-shows-accuracy-in-reflecting-cirrhotic-remodeling
#10
Yan Wang, Wei Huang, Ruhua Li, Zhaoqiang Yun, Youfu Zhu, Jinlian Yang, Hailin Liu, Zhipeng Liu, Qianjin Feng, Jinlin Hou
BACKGROUND AND AIM: There still lacks a tool for precisely evaluating cirrhotic remodeling. Histologic distortion characterized in cirrhosis (i.e. cirrhotic patterns) has a validated pathophysiological meaning and the potential relevance to clinical complications. We aimed to establish a new tool for quantify the cirrhotic patterns and test it for reflecting the cirrhotic remodeling. METHODS: We designed a computerized algorithm (qCP) dedicated for the analysis of liver images acquired by second harmonic microscopy...
January 9, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28047827/su-c-204-01-a-dosimetric-investigation-into-the-effects-of-yttrium-90-radioembolization-on-the-gi-tract-in-vivo-and-histological-analysis-in-an-animal-model
#11
A Pasciak, L Nodit, A Bourgeois, B Paxton, A Arepally, Y Bradley
PURPOSE: In Yttrium-90 (90Y) radioembolization, non-target embolization (NTE) to the stomach or small bowel can result in ulceration, a rare but difficult to manage clinical complication. However, dosimetric thresholds for toxicity to these tissues from radioembolization have never been evaluated in a controlled setting. We performed an analysis of the effect of 90Y radioembolization in a porcine model at different absorbed-dose endpoints. METHODS: Under approval of the University of Tennessee IACUC, 6 female pigs were included in this study...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042245/viral-hepatitis-status-does-not-affect-survival-in-patients-with-hepatocellular-carcinoma
#12
Eyas Alkhalili, Alissa Greenbaum, Li Luo, Rodrigo Rodriguez, Katharine Caldwell, Oscar Munoz Estrada, Jacqueline O'Neill, Itzhak Nir, Katherine T Morris
BACKGROUND: There have been few studies on the impact of viral etiology on the prognosis in patients with hepatocellular carcinoma (HCC). The aim of this study was to evaluate the clinical characteristics and survival of patients with viral hepatitis-associated HCC (V-HCC), compared to patients with HCC of non-hepatitis B, non-hepatitis C (NBNC-HCC) etiology. METHODS: We performed a retrospective analysis of all patients with HCC treated at our comprehensive cancer center from 2000 through 2014...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28027005/serological-survey-of-hepatitis-b-immunity-in-healthcare-workers-in-catalonia-spain
#13
A Domínguez, L Urbiztondo, J M Bayas, E Borrás, S Broner, M Campins, J Costa, M Esteve
Healthcare workers (HCW) are exposed to preventable infectious diseases, notably hepatitis B (HB). The aim of this study was to determine the immunity of HCW against hepatitis B. We made a seroprevalence study using a self-administered survey and obtained blood samples. Antibodies against the HB surface antigen (anti-HBs) and against the HB core antigen (anti-HBc) were studied. The odds ratio (OR) and 95% confidence intervals (CI) were calculated. The adjusted OR were calculated using logistic regression. Of the 644 HCW who participated (29...
February 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28025641/itraq-based-proteomics-identification-of-serum-biomarkers-of-two-chronic-hepatitis-b-subtypes-diagnosed-by-traditional-chinese-medicine
#14
Jiankun Yang, Lichao Yang, Baixue Li, Weilong Zhou, Sen Zhong, Zhenhua Zhuang, Bin Yang, Maoshan Chen, Quansheng Feng
Background. Chronic infection with hepatitis B virus (HBV) is a leading cause of cirrhosis and hepatocellular carcinoma. By traditional Chinese medicine (TCM) pattern classification, damp heat stasis in the middle-jiao (DHSM) and liver Qi stagnation and spleen deficiency (LSSD) are two most common subtypes of CHB. Results. In this study, we employed iTRAQ proteomics technology to identify potential serum protein biomarkers in 30 LSSD-CHB and 30 DHSM-CHB patients. Of the total 842 detected proteins, 273 and 345 were differentially expressed in LSSD-CHB and DHSM-CHB patients compared to healthy controls, respectively...
2016: BioMed Research International
https://www.readbyqxmd.com/read/28017912/differences-in-the-integrase-and-reverse-transcriptase-transmitted-resistance-patterns-in-northern-poland
#15
Miłosz Parczewski, Magdalena Leszczyszyn-Pynka, Anna Urbańska
INTRODUCTION: With the widespread introduction of the integrase (In) inhibitors into clinical practice, transmission of drug resistance to this class of antiretroviral medications may expand. The aim of this study was to analyze the recent patterns of In resistance in treatment naive individuals in Northern Poland and its association with transmitted protease (PR) and reverse transcriptase (RT) mutations. METHODS: Study included 172 PR, RT and InI sequences from antiretroviral treatment naive HIV-1 infected patients linked to care in Northern Poland from 2010 to 2015...
December 23, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28017429/risk-factors-related-to-the-failure-of-prevention-of-hepatitis-b-virus-mother-to-child-transmission-in-yunnan-china
#16
Wenyu Kang, Qiongfen Li, Liping Shen, Lifen Zhang, Ziying Tian, Lin Xu, Feng Qiu, Feng Wang
OBJECTIVE: To investigate the relationship between the failure of prevention of hepatitis B virus Mother-to-Child transmission and HBV serological pattern, viral load as well as HBV genotypes. METHODS: 2765 pairs of mother-infant matched samples were collected. These pregnant women were HBsAg positive and delivered at hospital from January 1st, 2011 to June 30th, 2011. Of these samples, 26 pairs of sera samples were randomly selected from 114 pairs of samples which failed in the prevention of hepatitis B virus Mother-to-Child transmission...
December 22, 2016: Vaccine
https://www.readbyqxmd.com/read/28012213/antibody-dependent-and-independent-uptake-of-hbsag-across-human-leukocyte-subsets-is-similar-between-individuals-with-chronic-hepatitis-b-virus-infection-and-healthy-donors
#17
Hugo Tharinger, Indrani Rebbapragada, Dharmaraj Samuel, Nikolai Novikov, Mindie Nguyen, Robert Jordan, Christian R Frey, Stefan Pflanz
Maintaining detectable levels of antibodies to hepatitis B surface antigen (HBsAg) in serum, i.e. HBsAg sero-conversion, is the key clinical endpoint indicative of recovery from infection with hepatitis B virus (HBV). HBV-infected hepatocytes secrete HBsAg sub-viral particles in vast excess over HBV virions. Therefore, detectable hepatitis B surface antibody (anti-HBs) titers imply complete elimination of HBV virions as well as HBsAg particles. Although intrahepatic phagocytes, e.g. Kupffer cells, are thought to mediate clearance of HBsAg via antibody (Ab)-dependent and -independent mechanisms, the relative contributions of circulating phagocytic cell types to HBsAg elimination are poorly characterized...
December 23, 2016: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28011645/in-vitro-and-in-vivo-analyses-reveal-profound-effects-of-fibroblast-growth-factor-16-as-a-metabolic-regulator
#18
Ingrid C Rulifson, Patrick Collins, Li Miao, Dana Nojima, Ki Jeong Lee, Miki Hardy, Jamila Gupte, Kelly Hensley, Kim Samayoa, Cynthia Cam, James B Rottman, Mike Ollmann, William G Richards, Yang Li
The discovery of brown adipose tissue (BAT) as a key regulator of energy expenditure has sparked interest in identifying novel soluble factors capable of activating inducible BAT (iBAT) to combat obesity. Using a high content cell-based screen, we identified fibroblast growth factor 16 (FGF16) as a potent inducer of several physical and transcriptional characteristics analogous to those of both "classical" BAT and iBAT. Overexpression of Fgf16 in vivo recapitulated several of our in vitro findings, specifically the significant induction of the Ucp1 gene and UCP1 protein expression in inguinal white adipose tissue (iWAT), a common site for emergent active iBAT...
February 3, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28009328/seroprevalence-and-diagnosis-of-hiv-hbv-hcv-and-syphilis-infections-among-blood-donors
#19
Tadesse Bekele Tafesse, Addis Adera Gebru, Semgne Gobalee, Gosaye Degu Bely, Molla Teferi Belew, Demelash Arso, Belay Ali Ebrahim, Getachew Mekonnon Shebeshi, Yonas Yimam
BACKGROUND: Blood transfusion is one of the most important therapeutic options of life-saving intervention for recipients who are in diseased or non-diseased conditions with severe blood loss. However, it is associated with certain risks which can lead to adverse consequences that may cause acute or delayed complications and bring the risk of transfusion-transmissible infections including HIV, Hepatitis B & C and Syphilis. So, there might be a fatal risk instead of life saving. This paper aims to provide a comprehensive and reliable tabulation of available data on seroprevalence and diagnosis of HIV, HBV, HCV and Syphilis infections among blood donors...
December 16, 2016: Human Antibodies
https://www.readbyqxmd.com/read/28006671/recapitulation-of-treatment-response-patterns-in-a-novel-humanized-mouse-model-for-chronic-hepatitis-b-virus-infection
#20
Benjamin Y Winer, Tiffany Huang, Benjamin E Low, Cindy Avery, Mihai-Alexandru Pais, Gabriela Hrebikova, Evelyn Siu, Luis Chiriboga, Michael V Wiles, Alexander Ploss
There are ~350 million chronic carriers of hepatitis B (HBV). While a prophylactic vaccine and drug regimens to suppress viremia are available, chronic HBV infection is rarely cured. HBV's limited host tropism leads to a scarcity of susceptible small animal models and is a hurdle to developing curative therapies. Mice that support engraftment with human hepatoctyes have traditionally been generated through crosses of murine liver injury models to immunodeficient backgrounds. Here, we describe the disruption of fumarylacetoacetate hydrolase directly in the NOD Rag1(-/-) IL2RγNULL (NRG) background using zinc finger nucleases...
February 2017: Virology
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