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https://www.readbyqxmd.com/read/28534962/galectin%C3%A2-9-ameliorates-fulminant-liver-injury
#1
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/28478826/novel-aspects-of-defensins-involvement-in-virus-induced-autoimmunity-in-the-central-nervous-system
#2
Evangelos I Kazakos, Jannis Kountouras, Stergios A Polyzos, Georgia Deretzi
Recent research on re-circulation of interstitial fluid from the brain parenchyma to the periphery and its inferred importance in immune surveillance dysregulation are changing our conceptualization of the pathophysiology of virus-induced autoimmunity. In this context, it is necessary to reassess the immunomodulatory properties of human defensins that are variably expressed by cerebral microglia, astrocytes and choroid plexus epithelial cells and exhibit complex and often confounding roles in neuroinflammatory processes...
May 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28464899/prevalence-of-hepatitis-b-and-c-infection-in-persons-living-with-hiv-enrolled-in-care-in-rwanda
#3
Justine Umutesi, Bryony Simmons, Jean D Makuza, Donatha Dushimiyimana, Aimable Mbituyumuremyi, Jean Marie Uwimana, Nathan Ford, Edward J Mills, Sabin Nsanzimana
BACKGROUND: Hepatitis B (HBV) and C (HCV) are important causes of morbidity and mortality in people living with human immunodeficiency virus (HIV). The burden of these co-infections in sub-Saharan Africa is still unclear. We estimated the prevalence of the hepatitis B surface antigen (HBsAg) and hepatitis C antibody (HCVAb) among HIV-infected individuals in Rwanda and identified factors associated with infection. METHODS: Between January 2016 and June 2016, we performed systematic screening for HBsAg and HCVAb among HIV-positive individuals enrolled at public and private HIV facilities across Rwanda...
May 2, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28464883/late-presentation-of-chronic-viral-hepatitis-for-medical-care-a-consensus-definition
#4
Stefan Mauss, Stanislas Pol, Maria Buti, Erika Duffell, Charles Gore, Jeffrey V Lazarus, Hilje Logtenberg-van der Grient, Jens Lundgren, Antons Mozalevskis, Dorthe Raben, Eberhard Schatz, Stefan Wiktor, Jürgen K Rockstroh
INTRODUCTION: We present two consensus definitions of advanced and late stage liver disease being used as epidemiological tools. These definitions can be applied to assess the morbidity caused by liver diseases in different health care systems. We focus is on hepatitis B and C virus infections, because effective and well tolerated treatments for both of these infections have greatly improved our ability to successfully treat and prevent advanced and late stage disease, especially if diagnosed early...
May 3, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28458139/chlorogenic-acid-inhibits-hepatocellular-carcinoma-in-vitro-and-in-vivo
#5
Yuan Yan, Na Liu, Ni Hou, Lei Dong, Jie Li
Curative treatment of patients with hepatocellular carcinoma (HCC) is poor. There is an urgent need to develop more effective strategies for the chemoprevention of HCC. Chlorogenic acid (CGA), a type of polyphenol present in the diet, especially from coffee, has many biological activities. Patients with viral hepatitis who drank coffee everyday experienced a reduction in the incidence of HCC. In the present study, we evaluated the effects of CGA on HCC. CGA inhibited the proliferation of HepG2 cells in vitro and the progression of HepG2 xenograft in vivo...
April 18, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28449246/review-article-hepatitis-e-a-concise-review-of-virology-epidemiology-clinical-presentation-and-therapy
#6
REVIEW
M C Donnelly, L Scobie, C L Crossan, H Dalton, P C Hayes, K J Simpson
BACKGROUND: Hepatitis E virus (HEV) is a leading cause of acute icteric hepatitis and acute liver failure in the developing world. During the last decade, there has been increasing recognition of autochthonous (locally acquired) HEV infection in developed countries. Chronic HEV infection is now recognised, and in transplant recipients this may lead to cirrhosis and organ failure. AIM: To detail current understanding of the molecular biology of HEV, diagnostic and therapeutic strategies and propose future directions for basic science and clinical research...
April 27, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28447325/interferon-free-therapy-with-sofosbuvir-plus-ribavirin-for-successful-treatment-of-genotype-2-hepatitis-c-virus-with-lichen-planus-a-case-report
#7
Ayumu Yoshikawa, Katsumi Terashita, Kenichi Morikawa, Soichiro Matsuda, Takahiro Yamamura, Koichiro Sarashina, Shintaro Nakano, Yoshimitsu Kobayashi, Susumu Sogabe, Kazuhiro Takahashi, Shin Haba, Hisashi Oda, Tatsuro Takahashi, Takuto Miyagishima, Naoya Sakamoto
Hepatitis C virus (HCV) infection remains the main cause of liver disease and can lead to chronic hepatitis, cirrhosis, and hepatocellular carcinoma. HCV may also develop extrahepatic manifestations in the skin, eyes, joints, kidneys, nervous system, and immune system. In fact, several studies reported that up to 70% of HCV patients experienced extrahepatic manifestations. Lichen planus (LP), which is an immune system disorder that is triggered by viral infections, allergens, and stress, can affect the skin, mouth, nails, and scalp...
June 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28436552/systematic-review-with-meta-analysis-the-efficacy-and-safety-of-tenofovir-to-prevent-mother-to-child-transmission-of-hepatitis-b-virus
#8
REVIEW
M H Hyun, Y-S Lee, J H Kim, J H Je, Y J Yoo, J E Yeon, K S Byun
BACKGROUND: Preventing mother to child transmission of chronic hepatitis B infection in the setting of a high maternal viral load is challenging. The idea has emerged from antepartum tenofovir treatment with combination immunoprophylaxis. AIMS: To demonstrate the efficacy and safety of tenofovir to prevent mother to child transmission of hepatitis B virus. METHODS: PubMed, EMBASE, and Cochrane databases were searched through August 16, 2016...
April 24, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28434087/hepatitis-b-during-pregnancy-in-endemic-areas-screening-treatment-and-prevention-of-mother-to-child-transmission
#9
REVIEW
Naichaya Chamroonkul, Teerha Piratvisuth
The proper management of pregnant women infected with hepatitis B virus (HBV) is necessary to prevent maternal and fetal morbidity and mortality and to protect the baby from HBV infection. In the majority of cases, vertical transmission can be prevented with a universal screening program, HBV vaccine immunoprophylaxis, and administration of hepatitis B immunoglobulin (HBIg) for babies born to mothers with HBV. However, in mothers with a high viral load (>200,000 or >1,000,000 IU/ml, depending on the guideline), the chance of immunoprophylaxis failure remains high...
June 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28428345/proliferation-of-primary-human-hepatocytes-and-prevention-of-hepatitis-b-virus-reinfection-efficiently-deplete-nuclear-cccdna-in-vivo
#10
Lena Allweiss, Tassilo Volz, Katja Giersch, Janine Kah, Giuseppina Raffa, Joerg Petersen, Ansgar W Lohse, Concetta Beninati, Teresa Pollicino, Stephan Urban, Marc Lütgehetmann, Maura Dandri
OBJECTIVE: The stability of the covalently closed circular DNA (cccDNA) in nuclei of non-dividing hepatocytes represents a key determinant of HBV persistence. Contrarily, studies with animal hepadnaviruses indicated that hepatocyte turnover can reduce cccDNA loads but knowledge on the proliferative capacity of HBV-infected primary human hepatocytes (PHHs) in vivo and the fate of cccDNA in dividing PHHs is still lacking. This study aimed to determine the impact of human hepatocyte division on cccDNA stability in vivo...
April 20, 2017: Gut
https://www.readbyqxmd.com/read/28427875/easl-2017-clinical-practice-guidelines-on-the-management-of-hepatitis-b-virus-infection
#11
Pietro Lampertico, Kosh Agarwal, Thomas Berg, Maria Buti, Harry L A Janssen, George Papatheodoridis, Fabien Zoulim, Frank Tacke
Hepatitis B virus (HBV) infection remains a global public health problem with changing epidemiology due to several factors including vaccination policies and migration. This Clinical Practice Guideline presents updated recommendations for the optimal management of HBV infection. Chronic HBV infection can be classified into five phases: (I) HBeAg-positive chronic infection, (II) HBeAg-positive chronic hepatitis, (III) HBeAg-negative chronic infection, (IV) HBeAg-negative chronic hepatitis and (V) HBsAg-negative phase...
April 18, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28407288/efficient-replication-of-blood-borne-hepatitis-c-virus-in-human-fetal-liver-stem-cells
#12
Xuan Guo, Shu Wang, Zhi-Gang Qiu, Ya-Ling Dou, Wei-Li Liu, Dong Yang, Zhi-Qiang Shen, Zhao-Li Chen, Jing-Feng Wang, Bin- Zhang, Xin-Wei Wang, Xiang-Fei Guo, Xue-Lian Zhang, Min Jin, Jun-Wen Li
The development of pathogenic mechanisms, specific antiviral treatments and preventive vaccines for hepatitis C virus (HCV) infection has been limited due to lack of cell culture model that could naturally imitate the entire HCV life cycle. Here, we established a HCV cell culture model based on human fetal liver stem cells (hFLSCs) that supports the entire blood-borne hepatitis C virus (bbHCV) life cycle. More than 90% of cells remained infected by various genotypes. bbHCV was efficiently propagated, and progeny virus were infectious to hFLSCs...
April 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28399146/interferon-inducible-ribonuclease-isg20-inhibits-hepatitis-b-virus-replication-through-directly-binding-to-the-epsilon-stem-loop-structure-of-viral-rna
#13
Yuanjie Liu, Hui Nie, Richeng Mao, Bidisha Mitra, Dawei Cai, Ran Yan, Ju-Tao Guo, Timothy M Block, Nadir Mechti, Haitao Guo
Hepatitis B virus (HBV) replicates its DNA genome through reverse transcription of a viral RNA pregenome. We report herein that the interferon (IFN) stimulated exoribonuclease gene of 20 KD (ISG20) inhibits HBV replication through degradation of HBV RNA. ISG20 expression was observed at basal level and was highly upregulated upon IFN treatment in hepatocytes, and knock down of ISG20 resulted in elevation of HBV replication and attenuation of IFN-mediated antiviral effect. The sequence element conferring the susceptibility of HBV RNA to ISG20-mediated RNA degradation was mapped at the HBV RNA terminal redundant region containing epsilon (ε) stem-loop...
April 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28384754/a-national-strategy-for-the-elimination-of-viral-hepatitis-emphasizes-prevention-screening-and-universal-treatment-of-hepatitis-c
#14
Gillian J Buckley, Brian L Strom
No abstract text is available yet for this article.
April 4, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28339063/viral-and-host-factors-associated-with-outcomes-of-hepatitis-c-virus-infection-review
#15
Zehui Yan, Yuming Wang
Hepatitis C virus (HCV) infection is a major health issue globally. Owing to the progress made in host genetics and HCV molecular virology, emerging data have suggested that the natural course and treatment response in patients with HCV infection are largely determined by complex host‑viral interactions. HCV genotype is the most important viral factor predicting the response to pegylated interferon‑α plus ribavirin therapy. The subtype of HCV genotype 1 is the key viral factor that predicts the efficacy of direct‑acting antiviral therapy...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338458/hepatitis-b-in-solid-organ-transplant-procedures-other-than-liver
#16
Dina Halegoua-De Marzio, Jonathan M Fenkel, Cataldo Doria
Transplant is often the best treatment available for patients with end-stage organ failure. Hepatitis B virus infection in transplant procedures other than liver is a major concern because it can be a significant cause of morbidity and mortality after transplant. Due to the increased risk of hepatic complications, such as fibrosing cholestatic hepatitis or histologic deterioration after transplant, systematic use of nucleoside or nucleotide analogues shortly before or at the time of transplant is recommended (tenofovir or entecavir are preferable to lamivudine) in all patients, whatever the baseline histologic evaluation...
April 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28333153/a-novel-inhibitor-idpp-interferes-with-entry-and-egress-of-hcv-by-targeting-glycoprotein-e1-in-a-genotype-specific-manner
#17
Myungeun Lee, Jaewon Yang, Eunji Jo, Ji-Young Lee, Hee-Young Kim, Ralf Bartenschlager, Eui-Cheol Shin, Yong-Soo Bae, Marc P Windisch
Despite recent advances in curing chronic hepatitis C (CHC), the high economic burden to therapy, viral drug resistance, difficult to treat hepatitis C virus (HCV) genotypes and patient groups are still of concern. To address this unmet medical needs, we devised strategies to identify novel viral interventions through target-free high-throughput screening of small molecules utilizing a phenotypic-based HCV infection assay. Thereby, a very potent (EC50 46 ± 26 pM) iminodipyridinopyrimidine (IDPP) drug candidate was selected, and confirmed in primary human hepatocytes (EC50 0...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28329393/virological-outcomes-of-second-line-protease-inhibitor-based-treatment-for-human-immunodeficiency-virus-type-1-in-a-high-prevalence-rural-south-african-setting-a-competing-risks-prospective-cohort-analysis
#18
Dami Collier, Collins Iwuji, Anne Derache, Tulio de Oliveira, Nonhlanhla Okesola, Alexandra Calmy, Francois Dabis, Deenan Pillay, Ravindra K Gupta
Background.: Second-line antiretroviral therapy (ART) based on ritonavir-boosted protease inhibitors (bPIs) represents the only available option after first-line failure for the majority of individuals living with human immunodeficiency virus (HIV) worldwide. Maximizing their effectiveness is imperative. Methods.: This cohort study was nested within the French National Agency for AIDS and Viral Hepatitis Research (ANRS) 12249 Treatment as Prevention (TasP) cluster-randomized trial in rural KwaZulu-Natal, South Africa...
April 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28326651/current-activities-and-future-directions-of-comprehensive-hepatitis-control-measures-in-japan-the-supportive-role-of-the-hepatitis-information-center-in-building-a-solid-foundation
#19
Noriko Oza, Hiroshi Isoda, Toshiki Ono, Tatsuya Kanto
In Japan, hepatitis B or C virus infection has been a major health issue. For the prevention of liver-related deaths, multifaceted strategies have been taken against hepatitis virus. In fiscal year (FY) 2002, nationwide screening for hepatitis was started as a part of health examinations provided by municipal governments. From FY2007, the hepatitis treatment network has been strengthened by the nationwide establishment of regional government-based hepatitis treatment systems, comprising linked regional core centers, specialized institutions for hepatitis treatment, primary care physicians, and regional governments...
May 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28322313/the-epidemic-dynamics-of-hepatitis-c-virus-subtypes-4a-and-4d-in-saudi-arabia
#20
Ahmed A Al-Qahtani, Guy Baele, Nisreen Khalaf, Marc A Suchard, Mashael R Al-Anazi, Ayman A Abdo, Faisal M Sanai, Hamad I Al-Ashgar, Mohammed Q Khan, Mohammed N Al-Ahdal, Philippe Lemey, Bram Vrancken
The relatedness between viral variants sampled at different locations through time can provide information pertinent to public health that cannot readily be obtained through standard surveillance methods. Here, we use virus genetic data to identify the transmission dynamics that drive the hepatitis C virus subtypes 4a (HCV4a) and 4d (HCV4d) epidemics in Saudi Arabia. We use a comprehensive dataset of newly generated and publicly available sequence data to infer the HCV4a and HCV4d evolutionary histories in a Bayesian statistical framework...
March 21, 2017: Scientific Reports
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