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Viral and fibrosis

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https://www.readbyqxmd.com/read/28936485/a-randomized-controlled-trial-of-lisinopril-to-decrease-lymphoid-fibrosis-in-antiretroviral-treated-hiv-infected-individuals
#1
Leslie R Cockerham, Steven A Yukl, Kara Harvill, Ma Somsouk, Sunil K Joshi, Elizabeth Sinclair, Teri Liegler, Rebecca Hoh, Sophie Lyons, Peter W Hunt, Adam Rupert, Irini Sereti, David R Morcock, Ajantha Rhodes, Claire Emson, Marc K Hellerstein, Jacob D Estes, Sharon Lewin, Steven G Deeks, Hiroyu Hatano
BACKGROUND: In HIV infection, lymphoid tissue is disrupted by fibrosis. Angiotensin converting enzyme inhibitors have anti-fibrotic properties. We completed a pilot study to assess whether the addition of lisinopril to antiretroviral therapy (ART) reverses fibrosis of gut tissue, and whether this leads to reduction of HIV RNA and DNA levels. METHODS: Thirty HIV-infected individuals on ART were randomized to lisinopril at 20mg daily or matching placebo for 24 weeks...
2017: Pathogens & Immunity
https://www.readbyqxmd.com/read/28933417/serum-wisteria-floribunda-agglutinin-positive-mac-2-binding-protein-could-not-always-predict-early-cirrhosis-in-non-viral-liver-diseases
#2
Yuki Haga, Tatsuo Kanda, Reina Sasaki, Masato Nakamura, Koji Takahashi, Shuang Wu, Shin Yasui, Makoto Arai, Shingo Nakamoto, Osamu Yokosuka
BACKGROUND: Wisteria floribunda agglutinin-positive human Mac-2-binding protein (WFA(+)-M2BP) is a novel non-invasive marker of liver fibrosis. The goal of the study was to investigate whether the novel serum biomarker WFA(+)-M2BP or other non-invasive markers are useful for the prediction of liver fibrosis in patients with nonalcoholic steatohepatitis (NASH), autoimmune hepatitis (AIH), and primary biliary cholangitis (PBC). METHODS: We examined a significant correlation between serum WFA(+)-M2BP levels and histological staging of fibrosis in several chronic liver diseases, such as NASH, AIH, and PBC...
December 14, 2016: Diseases (Basel)
https://www.readbyqxmd.com/read/28930153/selective-hdl-raising-human-apo-a-i-gene-therapy-counteracts-cardiac-hypertrophy-reduces-myocardial-fibrosis-and-improves-cardiac-function-in-mice-with-chronic-pressure-overload
#3
Ruhul Amin, Ilayaraja Muthuramu, Joseph Pierre Aboumsallem, Mudit Mishra, Frank Jacobs, Bart De Geest
Epidemiological studies support an independent inverse association between high-density lipoprotein (HDL) cholesterol levels and heart failure incidence. The effect of selective HDL-raising adeno-associated viral serotype 8-human apolipoprotein (apo) A-I (AAV8-A-I) gene transfer on cardiac remodeling induced by transverse aortic constriction (TAC) was evaluated in C57BL/6 low-density lipoprotein receptor-deficient mice. Septal wall thickness and cardiomyocyte cross-sectional area were reduced by 16.5% (p < 0...
September 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28922440/real-life-use-of-3-direct-acting-antiviral-regimen-in-a-large-cohort-of-patients-with-genotype-1b-hcv-compensated-cirrhosis
#4
Liana Gheorghe, Speranta Iacob, Manuela Curescu, Ciprian Brisc, Cristina Cijevschi, Florin Caruntu, Carol Stanciu, Iulia Simionov, Ioan Sporea, Cristian Gheorghe, Razvan Iacob, Victoria Arama, Roxana Sirli, Anca Trifan
BACKGROUND AND AIMS: Ombitasvir/Paritaprevir/ritonavir/Dasabuvir (OBV/PTV/r+DSV) is one of the elective direct-acting antivirals (DAAs) recommended by international guidelines and the only one covered by the National Insurance System in Romania until November 2016. Our aim was to present the first prospective Romanian cohort evaluating the effectiveness and safety in clinical practice of this 3DAA combination in patients with HCV genotype-1b Child A liver cirrhosis. METHODS: 681 patients received OBV/PTV/r+DSV+RBV for 12 weeks and were assessed clinically and biologically at baseline, week 4, 8, 12 (end of treatment, EOT), and 12 weeks after therapy (sustained viral response, SVR)...
September 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28915405/hepatic-immunopathology-during-occult-hepacivirus-re-infection
#5
Cordelia Manickam, Amanda J Martinot, Rhianna A Jones, Valerie Varner, R Keith Reeves
Despite drug advances for Hepatitis C virus (HCV), re-infections remain prevalent in high-risk populations. Unfortunately, the role of preexisting viral immunity and how it modulates re-infection is unclear. GBV-B infection of common marmosets is a useful model to study tissue immune responses in hepacivirus infections, and in this study we re-challenged 4 animals after clearance of primary viremia. Although only low-to-absent viremia was observed following re-challenge, GBV-B viral RNA was detectable in liver, confirming re-infection...
September 12, 2017: Virology
https://www.readbyqxmd.com/read/28914424/new-perspectives-in-nanotherapeutics-for-chronic-respiratory-diseases
#6
Adriana Lopes da Silva, Fernanda Ferreira Cruz, Patricia Rieken Macedo Roccco, Marcelo Marcos Morales
According to the World Health Organization (WHO), hundreds of millions of people of all ages and in all countries suffer from chronic respiratory diseases, with particular negative consequences such as poor health-related quality of life, impaired work productivity, and limitations in the activities of daily living. Chronic obstructive pulmonary disease, asthma, occupational lung diseases (such as silicosis), cystic fibrosis, and pulmonary arterial hypertension are the most common of these diseases, and none of them are curable with current therapies...
September 15, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28912259/nod2-nucleotide-binding-oligomerization-domain-2-is-a-major-pathogenic-mediator-of-coxsackievirus-b3-induced-myocarditis
#7
Carsten Tschöpe, Irene Müller, Yu Xia, Konstantinos Savvatis, Kathleen Pappritz, Sandra Pinkert, Dirk Lassner, Markus M Heimesaat, Frank Spillmann, Kapka Miteva, Stefan Bereswill, Heinz-Peter Schultheiss, Henry Fechner, Burkert Pieske, Uwe Kühl, Sophie Van Linthout
BACKGROUND: The cytoplasmatic pattern recognition receptor, NOD2 (nucleotide-binding oligomerization domain 2), belongs to the innate immune system and is among others responsible for the recognition of single-stranded RNA. With Coxsackievirus B3 (CVB3) being a single-stranded RNA virus, and the recent evidence that the NOD2 target, NLRP3 (NOD-like receptor family, pyrin domain containing 3) is of importance in the pathogenesis of CVB3-induced myocarditis, we aimed to unravel the role of NOD2 in CVB3-induced myocarditis...
September 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28906010/serial-changes-in-liver-stiffness-and-controlled-attenuation-parameter-following-direct-acting-antiviral-therapy-against-hepatitis-c-virus-genotype-1b
#8
Nobuhiko Ogasawara, Masahiro Kobayashi, Norio Akuta, Yoko Kominami, Shunichiro Fujiyama, Yusuke Kawamura, Hitomi Sezaki, Tetsuya Hosaka, Fumitaka Suzuki, Satoshi Saitoh, Yoshiyuki Suzuki, Yasuji Arase, Kenji Ikeda, Mariko Kobayashi, Hiromitsu Kumada
Little information is available on the impact of direct-acting antiviral (DAA) therapy on changes in liver fibrosis and steatosis. Liver stiffness (LS) and controlled attenuation parameter (CAP) values were evaluated using transient elastography. The study subjects were 214 elderly patients infected with HCV genotype 1b who received 24-week daclatasvir and asunaprevir dual therapy. All patients of this retrospective study had no hepatocellular carcinoma before and during DAA therapy. LS and CAP were assessed before treatment (baseline), at end of treatment (EOT), and at 24, 48, 72 weeks (W) after EOT...
September 14, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28886065/hepatitis-c-virus-mediated-chronic-inflammation-and-tumorigenesis-in-the-humanised-immune-system-and-liver-mouse-model
#9
Zhiqiang Zheng, Ching Wooen Sze, Choong Tat Keng, Muthafar Al-Haddawi, Min Liu, Sue Yee Tan, Hwee Ling Kwek, Zhisheng Her, Xue Ying Chan, Bhaskar Barnwal, Eva Loh, Kenneth Tou En Chang, Thiam Chye Tan, Yee-Joo Tan, Qingfeng Chen
Hepatitis C is a liver disease caused by infection of the Hepatitis C virus (HCV). Many individuals infected by the virus are unable to resolve the viral infection and develop chronic hepatitis, which can lead to formation of liver cirrhosis and cancer. To understand better how initial HCV infections progress to chronic liver diseases, we characterised the long term pathogenic effects of HCV infections with the use of a humanised mouse model (HIL mice) we have previously established. Although HCV RNA could be detected in infected mice up to 9 weeks post infection, HCV infected mice developed increased incidences of liver fibrosis, granulomatous inflammation and tumour formation in the form of hepatocellular adenomas or hepatocellular carcinomas by 28 weeks post infection compared to uninfected mice...
2017: PloS One
https://www.readbyqxmd.com/read/28875521/chronic-myocarditis-with-a-long-clinical-course-report-of-an-autopsy-case-of-probable-autoimmune-myocarditis
#10
Masayuki Shintaku, Koji Uchiyama, Yohei Kobayashi
The patient was a 54-year-old woman, who died of chronic cardiac insufficiency after a clinical course of 2 years and 4 months. She had complained of myalgia, muscle weakness, and blepharoptosis before the onset of cardiac symptoms, but there was no evidence of myasthenia gravis or collagen-vascular diseases. At autopsy, the heart (280 g) showed marked dilatation of the four chambers and thinning of the ventricular walls. Diffuse and intense lymphocytic infiltration and extensive fibrosis were noted, with the latter being accentuated in the subendocardial and subepicardial zones...
September 6, 2017: Pathology International
https://www.readbyqxmd.com/read/28872283/impact-of-selected-predictive-factors-on-sustained-virologic-response-in-hcv-genotype-4-infected-patients-treated-with-pegylated-interferon-alpha-and-ribavirin
#11
Dorota Kozielewicz, Anna Grabińska, Grzegorz Madej, Magdalena Wietlicka-Piszcz
BACKGROUND: Dual therapy (PegIFN and ribavirin) (DT) had been the standard of care in patients infected with HCV genotype 4 (HCV-4) until 2014. Thereafter, new treatment options were available including IFNbased and other IFN-free regimens. Objectives: The aim was to assess the efficacy (SVR24) of DT and a selection of predictive factors of SVR in HCV-4 infected patients. METHODS: 112 patients (62 men) of median age 23 years were treated with DT for 48/72 weeks (107/5)...
2017: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/28870440/the-noninvasive-diagnosis-of-esophageal-varices-and-its-application-in-clinical-practice
#12
REVIEW
Etienne Pateu, Frédéric Oberti, Paul Calès
Here, we review recent improvements made to different noninvasive tests used for the diagnosis of esophageal varices (EV) in the light of the recent Baveno VI recommendation and with an emphasis on clinical application. Like for fibrosis tests, these noninvasive EV tests can be classified as direct markers when they provide a visualization of EV (including all imaging procedures like endoscopy or radiology) and as indirect markers when they do not (blood markers or elastometry). Clinical descriptors expressed as percentages, especially the spared endoscopy rate and the missed high-risk esophageal varices (HREV) rate, are more eloquent in this setting than classical statistical descriptors like accuracy...
September 1, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28866088/statin-use-and-virus-related-cirrhosis-a-systemic-review-and-meta-analysis
#13
Xiaosong Ma, Dehong Sun, Chuansheng Li, Jie Ying, Youde Yan
BACKGROUND/OBJECTIVES: Liver cirrhosis and its complications are important factors contributing to mortality worldwide. Statin use is probably associated with lower risk of hepatic decompensation and mortality, but not with cirrhosis or fibrosis progression according to a recent systematic review. We aimed to evaluate the definite effects of statins on the risk of virus-related cirrhosis. METHODS: We systematically searched four databases up to May 7, 2017, without language restriction...
August 30, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28862649/immune-evasion-strategies-during-chronic-hepatitis-b-and-c-virus-infection
#14
REVIEW
Ana Maria Ortega-Prieto, Marcus Dorner
Both hepatitis B virus (HBV) and hepatitis C virus (HCV) infections are a major global healthcare problem with more than 240 million and 70 million infected, respectively. Both viruses persist within the liver and result in progressive liver disease, resulting in liver fibrosis, cirrhosis and hepatocellular carcinoma. Strikingly, this pathogenesis is largely driven by immune responses, unable to clear an established infection, rather than by the viral pathogens themselves. Even though disease progression is very similar in both infections, HBV and HCV have evolved distinct mechanisms, by which they ensure persistence within the host...
September 1, 2017: Vaccines
https://www.readbyqxmd.com/read/28860836/serum-levels-of-caspase-cleaved-cytokeratin-18-ck18-asp396-predict-severity-of-liver-disease-in-chronic-hepatitis-b
#15
Juan Li, Auke P Verhaar, Qiuwei Pan, Robert Jacobus de Knegt, Maikel P Peppelenbosch
BACKGROUND AND AIM: Caspase-cleaved cytokeratin 18 (CK18-Asp396) is a potential clinically useful biomarker in liver disease as it is released from hepatocytes during apoptosis. In this study, we investigated serum CK18-Asp396 levels in chronic hepatitis B (CHB). PATIENTS AND METHODS: Overall, 163 patients with CHB were included. Serum CK18-Asp396 levels were determined by enzyme-linked immunosorbent assay (ELISA), and results were related to steatosis grade, histological activity index, inflammation score, and METAVIR fibrosis grade as well as to viral load, serum levels of liver enzymes, and albumin...
2017: Clinical and Experimental Gastroenterology
https://www.readbyqxmd.com/read/28860489/prognostic-significance-of-elevated-cholestatic-enzymes-for-fibrosis-and-hepatocellular-carcinoma-in-hospital-discharged-chronic-viral-hepatitis-patients
#16
Wen Xie, Yang Cao, Min Xu, Jiangbin Wang, Changyu Zhou, Xingxiang Yang, Xiaoxia Geng, Wenhong Zhang, Ning Li, Jun Cheng
Chronic viral hepatitis (CVH) is the root cause of liver fibrosis and subsequent hepatocellular carcinoma (HCC). We conducted a cross-sectional, observational study based on medical records and primary data collection from patients with CVH who were admitted in five hospitals across China between February and September 2013 to determine the prevalence of elevated cholestatic enzymes (ALP and/or GGT above ULN) in discharged Chinese patients with CVH as a primary outcome and secondarily evaluated the relationship of these enzymes with fibrosis and disease severity...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28858692/modeling-hepatitis-virus-infections-and-treatment-strategies-in-humanized-mice
#17
REVIEW
Dina Kremsdorf, Helene Strick-Marchand
Hepatitis viruses cause chronic liver diseases such as fibrosis, cirrhosis and hepatocellular carcinomas that are difficult to treat and constitute a global health problem. Species-specific viral tropism has limited the usefulness of small animal models to study the impact of viral hepatitis. Immunodeficient mice grafted with human hepatocytes are susceptible to hepatitis viruses B, C, D and E (HBV, HCV, HDV and HEV), developing full viral life cycles, and delivering a means to investigate virus-host interactions and antiviral treatments...
August 28, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28853905/airway-mucosal-host-defense-is-key-to-genomic-regulation-of-cystic-fibrosis-lung-disease-severity
#18
Deepika Polineni, Hong Dang, Paul J Gallins, Lisa C Jones, Rhonda G Pace, Jaclyn R Stonebraker, Leah A Commander, Jeanne E Krenicky, Yi-Hui Zhou, Harriet Corvol, Garry R Cutting, Mitchell L Drumm, Lisa J Strug, Michael P Boyle, Peter R Durie, James F Chmiel, Fei Zou, Fred A Wright, Wanda K O'Neal, Michael R Knowles
RATIONALE: The severity of cystic fibrosis (CF) lung disease varies widely, even for Phe508del homozygotes. Heritability studies show that >50% of the variability reflects non-CFTR genetic variation; however the full extent of the pertinent genetic variation is not known. OBJECTIVES: We sought to identify novel CF disease-modifying mechanisms using an integrated approach based on analyzing "in vivo" CF airway epithelial gene expression, complemented with genome-wide association study (GWAS) data...
August 30, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28853728/fibrosis-4-index-helps-identify-hbv-carriers-with-the-lowest-risk-of-hepatocellular-carcinoma
#19
Tai-Chung Tseng, Chun-Jen Liu, Tung-Hung Su, Wan-Ting Yang, Chi-Ling Chen, Hung-Chih Yang, Chia-Chi Wang, Stephanie Fang-Tzu Kuo, Chen-Hua Liu, Pei-Jer Chen, Ding-Shinn Chen, Jia-Horng Kao
OBJECTIVES: Several viral and host risk factors have been used to predict risks of hepatocellular carcinoma (HCC) in patients with chronic infection of hepatitis B virus (HBV). However, little is known whether fibrosis-4 (FIB-4) index, a liver fibrosis biomarker, helps identify non-cirrhotic patients with the lowest HCC risk. METHODS: A total of 2075 treatment-naive Taiwanese patients with chronic HBV infection were followed for an average period of 16.02 years...
August 29, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28852124/oxidative-stress-and-immune-responses-during-hepatitis-c-virus-infection-in-tupaia-belangeri
#20
Mohammad Enamul Hoque Kayesh, Sayeh Ezzikouri, Takahiro Sanada, Haiying Chi, Yukiko Hayashi, Khadija Rebbani, Bouchra Kitab, Aya Matsuu, Noriaki Miyoshi, Tsunekazu Hishima, Michinori Kohara, Kyoko Tsukiyama-Kohara
Hepatitis C virus (HCV) is a leading cause of chronic liver disease, cirrhosis, and hepatocellular carcinoma. To address the molecular basis of HCV pathogenesis using tupaias (Tupaia belangeri), we characterized host responses upon HCV infection. Adult tupaias were infected with HCV genotypes 1a, 1b, 2a, or 4a. Viral RNA, alanine aminotransferase, anti-HCV core and anti-nonstructural protein NS3 antibody titres, reactive oxygen species (ROS), and anti-3β-hydroxysterol-Δ24reductase (DHCR24) antibody levels were measured at 2-week intervals from 0 to 41 weeks postinfection...
August 29, 2017: Scientific Reports
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