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https://www.readbyqxmd.com/read/28550721/clinical-performance-of-the-veris-hcv-assay-for-hepatitis-c-virus-rna-quantification
#1
Laure Izquierdo, Corinne Prégermain, Corinne Hottelet, Gwenaëlle Decombe, Anne-Marie Roque-Afonso
BACKGROUND: Diagnosis of hepatitis C virus (HCV) infection and treatment monitoring rely on detection/quantification of HCV RNA and real-time polymerase chain reaction (PCR) techniques are expected to equivalently quantify the different HCV genotypes. OBJECTIVE: The clinical performance of the VERIS HCV assay for HCV RNA quantification was compared to that of the Abbott RealTime HCV assay. STUDY DESIGN: Qualitative concordance and quantitative comparison were evaluated on a first panel of 286 clinical samples containing HCV genotypes 1-6...
May 18, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28550648/pregnancy-outcome-in-more-than-5000-births-to-women-with-viral-hepatitis-a-population-based-cohort-study-in-sweden
#2
Knut Stokkeland, Jonas Filip Ludvigsson, Rolf Hultcrantz, Anders Ekbom, Jonas Höijer, Matteo Bottai, Olof Stephansson
Previous studies have shown inconsistent results with respect to hepatitis B (HBV), hepatitis C (HCV) and pregnancy outcome. The aim of this study was to investigate pregnancy outcome in women with HBV or HCV. In a nationwide cohort of births between 2001 and 2011 we investigated the risks of adverse pregnancy outcomes in 2990 births to women with HBV and 2056 births to women with HCV using data from Swedish healthcare registries. Births to women without HBV (n = 1090 979), and births without HCV (n = 1091 913) served as population controls...
May 26, 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/28548037/moonlighting-glycolytic-enzyme-glyceraldehyde-3-phosphate-dehydrogenase-gapdh-is-required-for-efficient-hepatitis-c-virus-and-dengue-virus-infections-in-human-huh-7-5-1-cells
#3
Meera Raj, Mary Langley, Steven J McArthur, François Jean
Hijacking of cellular biosynthetic pathways by human enveloped viruses is a shared molecular event essential for the viral lifecycle. In this study, the accumulating evidence of the importance of human glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in the host secretory pathway led us to hypothesize that this moonlighting enzyme could play a key role in the lifecycle steps of two important Flaviviridae members, hepatitis C virus (HCV) and dengue virus (DENV). We used short interfering RNA (siRNA)-mediated knockdown of human GAPDH in Huh-7...
May 26, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28547948/cytokeratin-18-in-diagnosis-of-hcc-in-patients-with-liver-cirrhosis
#4
Saber A Ismail, Sherif El Saadany, Dina H Ziada, Soha S Zakaria, Wael W Mayah, Heba Elashry, Mona Arafa, Nehal Elmashad
Background: Hepatocellular carcinoma (HCC) is a common malignancy that occurs secondary to viral hepatitis B and C cirrhosis under the influence of environmental factors. In early stages, clinical diagnosis is often difficult and distinguishing HCC from cirrhosis and other hepatic masses by conventional tests is frequently not feasible. Physicians usually depend on measuring serum alpha-fetoprotein (AFP), but this marker has low sensitivity and specificity. The aim of this research was to determine any role of serum cytokeratin-18(Ck-18) as a marker for diagnosis of HCC in patients with liver cirrhosis...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28545675/changes-in-viral-hepatitis-b-screening-practices-over-time-in-west-african-hiv-clinics
#5
P A Coffie, A Patassi, A Doumbia, G Bado, E Messou, A Minga, E Allah-Kouadio, D M Zannou, M Seydi, A R Kakou, F Dabis, G Wandeler
BACKGROUND: We aimed to describe changes in hepatitis B screening practices over a 3-year period among HIV-infected patients in West Africa. METHODS: A medical chart review was conducted in urban HIV treatment centers in Ivory Coast (3 sites), Benin, Burkina Faso, Senegal, and Togo (1 site each). Among patients who started antiretroviral treatment between 2010 and 2012, 100 per year were randomly selected from each clinic. Demographic, clinical, and laboratory data was collected using a standardized questionnaire...
May 22, 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28545573/peroxisome-proliferators-activated-receptor-ppar-agonists-activate-hepatitis-b-virus-replication-in-vivo
#6
Lingyao Du, Yuanji Ma, Miao Liu, Libo Yan, Hong Tang
BACKGROUND: PPAR agonists are often used in HBV infected patients with metabolic disorders. However, as liver-enriched transcriptional factors, PPARs would activate HBV replication. Risks exsit in such patients. This study aimed to assess the influence of commonly used synthetic PPAR agonists on hepatitis B virus (HBV) transcription, replication and expression through HBV replicative mouse models, providing information for physicians to make necessary monitoring and therapeutic adjustment when HBV infected patients receive PPAR agonists treatment...
May 25, 2017: Virology Journal
https://www.readbyqxmd.com/read/28544232/peripartum-cytokine-flares-in-a-multiethnic-cohort-of-chronic-hepatitis-b-carriers-does-not-correlate-with-hepatitis-b-virus-suppression-or-increased-risk-of-liver-disease
#7
Shivali S Joshi, Daniel Wong, Eliana Castillo, Mark G Swain, Carla S Coffin
PROBLEM: In chronic hepatitis B (CHB) carriers, alanine transaminase (ALT) flares are common in the peripartum period. There are limited data on immunological changes of pregnancy in CHB. We hypothesize that in pregnant CHB carriers, the Th1/Th2 cytokine ratio is altered resulting in changes in biochemical/virological and liver fibrosis markers. STUDY METHODS: Serum from 38 pregnant/post-partum CHB carriers (median age 32 years, 53% Asian, 8 HBeAg(+) ) was tested for HBV DNA, quantitative HBV surface antigen, ALT and liver fibrosis by transient elastography (TE)...
May 19, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28544047/comparison-of-oral-fluid-collection-methods-for-the-molecular-detection-of-hepatitis-b-virus
#8
Moyra Machado Portilho, Ana Carolina da Fonseca Mendonça, Vanessa Alves Marques, Leticia Cancella Nabuco, Cristiane Alves Villela-Nogueira, Claudia Ivantes, Lia Laura Lewis-Ximenez, Elisabeth Lampe, Livia Melo VIllar
BACKGROUND: This study aims to compare the efficiency of four oral fluid collection methods (Salivette, FTA Card, spitting and DNA-Sal) to detect HBV DNA by qualitative PCR. MATERIALS AND METHODS: Seventy-four individuals (32 HBV reactive and 42 with no HBV markers) donated serum and oral fluid. In-house qualitative PCR to detect HBV was used for both samples and commercial quantitative PCR for serum. RESULTS: HBV DNA was detected in all serum samples from HBV-infected individuals, and it was not detected in control group...
May 19, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28543911/polymorphism-of-tlr5-rs5744174-is-associated-with-disease-progression-in-chinese-patients-with-chronic-hbv-infection
#9
Lina Cao, Tong Zhang, Junping Zhu, Aixin Li, Kai Zheng, Nan Zhang, Bin Su, Wei Xia, Hao Wu, Ning Li, Qiushui He
Toll-like receptors (TLRs) play a crucial role in innate and adaptive immunity, protecting the host from viral pathogens. Studies have implicated that TLR5 is associated with various diseases such as autoimmune and inflammation related diseases. However, little is known about the relationship between TLR5 and hepatitis B virus (HBV) infection. We studied the effect of TLR5 gene polymorphisms on susceptibility to and disease progression of chronic hepatitis B (CHB) infection in Chinese. Blood samples were taken from 636 patients with CHB, HBV-related liver cirrhosis (LC) or hepatocellular carcinoma (HCC) and 273 controls...
May 25, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28543875/unconjugated-interferon-stimulated-gene-15-specifically-interacts-with-the-hepatitis-c-virus-ns5a-protein-via-domain-i
#10
Nanae Minami, Takayuki Abe, Lin Deng, Chieko Matsui, Takasuke Fukuhara, Yoshiharu Matsuura, Ikuo Shoji
Interferon-stimulated gene 15 (ISG15) is a ubiquitin-like protein induced by type I interferon. Although several groups have reported ISGylation of the HCV NS5A protein, it is still unclear whether ISGylation of NS5A has anti-viral or pro-viral effects in HCV infection. In the present study, we examined the role of ISGylation-independent, unconjugated ISG15 in HCV infection. Immunoprecipitation analyses revealed that ISG15 specifically interacted with NS5A domain I. The ISG15 mutants lacking a C-terminal glycine residue essential for ISGylation still interacted with NS5A protein...
May 25, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28543644/detection-of-viral-hepatitis-e-in-clinical-liver-biopsies
#11
Sandrine Prost, Claire L Crossan, Harry R Dalton, Robert A De Man, Nassim Kamar, Janick Selves, Catharine Dhaliwal, Linda Scobie, Christopher O C Bellamy
AIMS: to determine the relative utility of in situ testing for hepatitis E virus (HEV) RNA and paraffin section PCR to diagnose HEV infection in paraffin-embedded clinical liver biopsies, and to correlate with clinico-pathological characteristics. METHODS AND RESULTS: We evaluated in situ and quantitative PCR (qPCR)-based approaches to identifying HEV in clinical liver biopsies from infected patients from multiple centers, correlating with clinical setting (immunocompetent, allograft or immunosuppressed native liver) and histologic findings...
May 24, 2017: Histopathology
https://www.readbyqxmd.com/read/28543299/low-occurrence-of-hbsag-but-high-frequency-of-transient-occult-hbv-infection-in-vaccinated-and-hbig-administered-infants-born-to-hbsag-positive-mothers
#12
Shan Zhou, Tingting Li, Jean-Pierre Allain, Bin Zhou, Yuming Zhang, Mei Zhong, Yongshui Fu, Chengyao Li
The status of chronic and occult HBV infection (OBI) in neonatal hepatitis B vaccine and immunoglobulin (HBIG) vaccinated infants born to HBsAg+ mothers was investigated at a major hospital in China. Seventy-seven and 15 blood samples were collected in first or second follow-up detection from the vaccinated babies aged 3 to 36 months born to 43 HBsAg+ or plus 25 HBeAg+ mothers. HBV infection was analyzed between the paired baby and mother by serology and DNA analysis. Among 77 children born to 68 HBsAg+ mothers, 3...
May 23, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28539842/a-review-of-antiviral-use-for-the-treatment-of-chronic-hepatitis-b-virus-infection-in-pregnant-women
#13
Ariel Jaffe, Robert S Brown
Mother-to-child transmission (MTCT) of hepatitis B virus (HBV) remains high even with the proper use of active-passive immunoprophylaxis in newborns. Mothers with significant viremia are at a much higher risk of MTCT; therefore, treatments aimed at lowering HBV DNA levels during pregnancy may ultimately decrease global disease burden. The exact threshold for treatment remains controversial; however, most studies have accepted levels greater than 2 × 5 log10 IU/mL as significant viremia. We reviewed the most recent literature on antiviral efficacy, maternal and fetal safety, and viral resistance patterns when used for short-duration therapy in pregnancy...
March 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28539442/extracellular-interactions-between-hepatitis-c-virus-and-secreted-apolipoprotein-e
#14
Zhihua Li, Yadong Li, Yanwei Bi, Hui Zhang, Yufeng Yao, Qihan Li, Wei Cun, Shaozhong Dong
Interactions between hepatitis C virus (HCV) and lipoproteins in humans play an important role in the efficient establishment of chronic infection. Apolipoprotein E (ApoE) on the HCV envelope mediates virus attachment to host cells as well as immune evasion. This interaction is thought to occur in hepatocytes, as ApoE plays dual functions in HCV assembly and maturation as well as cell attachment. In the present study, we found that secreted ApoE (sApoE) can also bind to viral particles via its C-terminal domain after HCV is released from the cell...
May 24, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28539069/real-world-challenges-for-hepatitis-c-virus-medications-a-critical-overview
#15
Imran Shahid, Waleed Hassan AlMalki, Sajida Hassan, Muhammad Hassan Hafeez
From 2010, the landscape of hepatitis C therapeutics has been changed rapidly, and today we are standing at a cusp of a pharmacological revolution where highly effective and interferon (IFN)-free direct acting antivirals (DAAs) are already on the market. Such treatment paradigms attain 90-95% sustained virologic response (SVR; undetectable viral load at week 12 or 24 at the end of therapy) rates in treated individuals compared to 50-70% with treatment completion of dual-therapy-pegylated interferon (PEG-IFN) and ribavirin (RBV)...
May 25, 2017: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/28539035/the-performance-of-serum-biomarkers-for-predicting-fibrosis-in-patients-with-chronic-viral-hepatitis
#16
Chang Seok Bang, Ha Yan Kang, Gyu Ho Choi, Suk Bae Kim, Wonae Lee, Il Han Song
Background/Aims: The invasiveness of a liver biopsy and its inconsistent results have prompted efforts to develop noninvasive tools to evaluate the severity of chronic hepatitis. This study was intended to assess the performance of serum biomarkers for predicting liver fibrosis in patients with chronic viral hepatitis. Methods: A total of 302 patients with chronic hepatitis B or C, who had undergone liver biopsy, were retrospectively enrolled. We investigated the diagnostic accuracy of several clinical factors for predicting advanced fibrosis (F≥3)...
May 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28535669/acute-hepatitis-a-b-and-c-but-not-d-is-still-prevalent-in-mongolia-a-time-trend-analysis
#17
Oidov Baatarkhuu, Hye Won Lee, Jacob George, Dashchirev Munkh-Orshikh, Baasankhuu Enkhtuvshin, Sosorbaram Ariunaa, Mohammed Eslam, Sang Hoon Ahn, Kwang-Hyub Han, Do Young Kim
Background/Aims: Mongolia has one of the highest hepatitis A, C, B and D infection incidences worldwide. We sought to investigate changes in the proportion of acute viral hepatitis types in Mongolia over the last decade. Methods: The cohort comprised 546 consecutive patients clinically diagnosed with acute viral hepatitis from January 2012 to December 2014 in Ulaanbaatar Hospital, Mongolia. A time trend analysis investigating the change in proportion of acute hepatitis A virus, hepatitis C virus (HCV), hepatitis B virus (HBV) and hepatitis delta virus (HDV) infection among the cohort with respect to a previous published study was undertaken...
May 2, 2017: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/28535219/national-academies-report-eliminating-threat-of-viral-hepatitis
#18
Jennifer Abbasi
No abstract text is available yet for this article.
May 23, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28534962/galectin%C3%A2-9-ameliorates-fulminant-liver-injury
#19
Tomoko Tadokoro, Asahiro Morishita, Teppei Sakamoto, Shintaro Fujihara, Koji Fujita, Shima Mimura, Kyoko Oura, Takako Nomura, Joji Tani, Hirohito Yoneyama, Hisakazu Iwama, Takashi Himoto, Toshiro Niki, Mitsuomi Hirashima, Tsutomu Masaki
Fulminant hepatitis is a severe liver disease resulting in hepatocyte necrosis. Galectin‑9 (Gal‑9) is a tandem‑repeat‑type galectin that has been evaluated as a potential therapeutic agent for various diseases that regulate the host immune system. Concanavalin A (ConA) injection into mice results in serious, immune‑mediated liver injury similar to human viral, autoimmune and fulminant hepatitis. The present study investigated the effects of Gal‑9 treatment on fulminant hepatitis in vivo and the effect on the expression of microRNAs (miRNAs), in order to identify specific miRNAs associated with the immune effects of Gal‑9...
May 18, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534888/hepatitis-a-outbreaks-in-european-homosexual-men
#20
Pablo Barreiro, Vicente Soriano
Hepatitis A virus (HAV) is a small RNA, non-enveloped agent predominantly transmitted via the fecal/oral route through person-to-person contact or contaminated food and water. The mean incubation period is 28 days (range: 15-50). Acute hepatitis A is always self-limited and very rarely fatal. Moreover, it never progresses to chronicity. Acutely infected persons are most likely to transmit HAV before the onset of jaundice, when viral particle concentration in stool is highest.
May 23, 2017: AIDS Reviews
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