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https://www.readbyqxmd.com/read/28820758/lack-of-association-between-interleukin-28b-polymorphism-and-vertical-transmission-of-hepatitis-c
#1
Afrodite Psaros Einberg, Ann-Sofi Duberg, Olga Filipovich, Jessica Nyström, Anton Zhirkov, Erwin Daniel Brenndörfer, Lars Frelin, Elena Rukoiatkina, Yuriy Lobzin, Matti Sällberg, Björn Fischler, Anton Lutckii
OBJECTIVES: Single genetic nucleotide polymorphism (rs12979860) near the gene for Interleukin 28B (IL28B), is known to be of importance for frequency of spontaneous clearance and treatment outcome in interferon based therapies in patients with hepatitis C virus (HCV) infection. The aim of this study was to investigate if IL28B polymorphism in children and/or their mothers plays a role in vertical transmission of HCV (HCV-VT). METHODS: Plasma samples from 59 infected women, 76 uninfected children born to infected mothers, and 47 children with known vertically transmitted HCV infection, were analysed for IL28B polymorphism and classified by the IL28B genotype (C/C, C/T and T/T) as well as by viral genotype...
August 17, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28820725/understanding-hepatitis-c-virus-drug-resistance-clinical-implications-for-current-and-future-regimens
#2
David L Wyles, Anne F Luetkemeyer
Viral resistance to direct-acting antiviral drugs may impact their effectiveness during treatment of hepatitis C virus (HCV) infection. Most data on HCV drug resistance concern genotypes 1 and 3. The clinical impact of resistance to HCV nonstructural protein 5A (NS5A) inhibitors and a practical approach to indications and methods for resistance testing are discussed.
July 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28820612/the-potential-of-signal-peptide-peptidase-as-a-therapeutic-target-for-hepatitis-c
#3
Kohji Moriishi
Chronic infection with hepatitis C virus (HCV) causes liver steatosis, cirrhosis, metabolic syndrome with inflammation, and eventually leads to hepatocellular carcinoma. HCV core protein is a well-known capsid protein and pathogenic factor related to lipid accumulation, type 2 diabetes mellitus, and carcinogenesis. Cleavage of the C-terminal transmembrane region by signal peptide peptidase (SPP) is required for maturation of the core protein. Areas covered: Herein, this review details the general aspects of the structure, lifecycle, pathogenesis, and maturation of the HCV core protein, the function of SPP, and clinically available direct-acting antivirals (DAAs)...
August 18, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28820346/attitudes-and-potential-barriers-towards-hepatitis-c-treatment-in-patients-with-and-without-hiv-coinfection
#4
P R Allyn, S M O'Malley, J Ferguson, C H Tseng, K W Chew, D Bhattacharya
This study aimed to assess attitudes and potential barriers towards treatment in patients with hepatitis C virus (HCV) infection, comparing those with and without HIV coinfection. A cross-sectional survey of 82 HCV-infected adults with and without HIV was conducted in greater Los Angeles between November 2013 and July 2015. Overall, there were 53 (64.6%) with HIV coinfection, 20 (25.0%) with self-reported cirrhosis, and 22 (26.8%) with a history of prior HCV treatment. Of all, 93.2% wanted HCV treatment, but 45...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28819570/hcv-integrated-care-a-randomized-trial-to-increase-treatment-initiation-and-svr-with-direct-acting-antivirals
#5
Erik J Groessl, Lin Liu, Marisa Sklar, Samuel B Ho
BACKGROUND AND AIMS: Psychiatric or substance use disorders are barriers to successful HCV antiviral treatment. In a randomized, controlled trial (RCT), the effects of HCV Integrated Care (IC) for increasing treatment rates and sustained viral response (SVR) were studied with direct acting antivirals (DAA). METHODS: In 2012-13, VA patients, whose screening was positive for depression, PTSD, or substance use (N = 79), were randomized to IC or Usual Care (UC). IC consisted of brief psychological interventions and case management...
2017: International Journal of Hepatology
https://www.readbyqxmd.com/read/28818677/low-prevalence-of-hepatitis-b-and-hepatitis-c-virus-serum-markers-in-a-cohort-of-pregnant-women-from-southern-italy
#6
Tindaro Lembo, Francesca Saffioti, Benito Chiofalo, Roberta Granese, Roberto Filomia, Roberta Grasso, Onofrio Triolo, Giovanni Raimondo
BACKGROUND: Mother-to-child transmission is still considered a major factor in the spread of hepatitis viruses. Nevertheless, epidemiological data on hepatitis B virus (HBV) and hepatitis C virus (HCV) in reproductive-age women are limited even in areas like the South of Italy where both viruses had been widespread. AIM: The aim of this study was to investigate the prevalence of HBV and HCV serum markers in a large cohort of pregnant women from Southern Italy. METHODS: Data concerning 7558 pregnant women consecutively admitted to an Obstetric Division of a Sicilian University Hospital over a six-year period (January 2010-December 2015) were retrospectively collected from clinical notes...
August 1, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28818546/glecaprevir-plus-pibrentasvir-for-chronic-hepatitis-c-virus-genotype-1-2-4-5-or-6-infection-in-adults-with-compensated-cirrhosis-expedition-1-a-single-arm-open-label-multicentre-phase-3-trial
#7
Xavier Forns, Samuel S Lee, Joaquin Valdes, Sabela Lens, Reem Ghalib, Humberto Aguilar, Franco Felizarta, Tarek Hassanein, Holger Hinrichsen, Diego Rincon, Rosa Morillas, Stefan Zeuzem, Yves Horsmans, David R Nelson, Yao Yu, Preethi Krishnan, Chih-Wei Lin, Jens J Kort, Federico J Mensa
BACKGROUND: The once-daily, ribavirin-free, pangenotypic, direct-acting antiviral regimen, glecaprevir coformulated with pibrentasvir, has shown high rates of sustained virological response in phase 2 and 3 studies. We aimed to assess the efficacy and safety of 12 weeks of coformulated glecaprevir and pibrentasvir in patients with hepatitis C virus (HCV) infection and compensated cirrhosis. METHODS: We did this single-arm, open-label, multicentre phase 3 study at 40 sites in Belgium, Canada, Germany, South Africa, Spain, and the USA...
August 14, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28818545/new-anti-hcv-drug-combinations-who-will-benefit
#8
Peter Ferenci
No abstract text is available yet for this article.
August 14, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28818165/effectiveness-and-safety-of-sofosbuvir-in-treatment-n%C3%A3-ivechildren-with-hepatitis-c-infection
#9
Muhammad Almas Hashmi, Huma Arshad Cheema
OBJECTIVE: To determine the effectiveness and safety of Sofosbuvir and Ribavirin combination in treatment-näivechildren with HCV infection. STUDY DESIGN: An experimental study. PLACE AND DURATION OF STUDY: Gastroentrology, Hepatology Department, The Children's Hospital and The Institute of Child Health, Lahore, from January to December 2016. METHODOLOGY: HCV PCR positive treatment-näivepatients, 5 to 18 years of age, were enrolled by consecutive nonprobability sampling...
July 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28818113/respiratory-syncytial-virus-rsv-entry-is-inhibited-by-serine-protease-inhibitor-aebsf-when-present-during-an-early-stage-of-infection
#10
Winke Van der Gucht, Annelies Leemans, Marjorie De Schryver, Annick Heykers, Guy Caljon, Louis Maes, Paul Cos, Peter L Delputte
BACKGROUND: Host proteases have been shown to play important roles in many viral activities such as entry, uncoating, viral protein production and disease induction. Therefore, these cellular proteases are putative targets for the development of antivirals that inhibit their activity. Host proteases have been described to play essential roles in Ebola, HCV, HIV and influenza, such that specific protease inhibitors are able to reduce infection. RSV utilizes a host protease in its replication cycle but its potential as antiviral target is unknown...
August 17, 2017: Virology Journal
https://www.readbyqxmd.com/read/28816020/real-world-efficacy-and-safety-of-ombitasvir-paritaprevir-r-dasabuvir-ribavirin-in-genotype-1b-patients-with-hcv-liver-cirrhosis
#11
Carmen Monica Preda, Corneliu Petru Popescu, Cristian Baicus, Theodor Voiosu, Mircea Manuc, Corina Silvia Pop, Liana Gheorghe, Ioan Sporea, Anca Trifan, Marcel Tantau, Alina Tantau, Emanoil Ceausu, Doina Proca, Ileana Constantinescu, Simona Maria Ruta, Mircea Diculescu, Alexandru Oproiu
BACKGROUND: Direct antiviral agents (DAA) showed very good results in terms of efficacy and safety in clinical trials, but real life data are still needed in order to confirm this profile. MATERIAL AND METHODS: In Romania, through a nationwide government-funded programme in 2015-2016, approx.5800 patients with virus C liver cirrhosis received fully reimbursed DAA therapy with OBV/PTV/r+DSV+RBV for 12 weeks. We analysed a national prospective cohort enrolling the first 2070 patients, all with genotype 1b...
August 17, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28815822/hepatitis-c-virus-related-complications-are-increasing-in-women-veterans-a-national-cohort-study
#12
J R Kramer, H B El-Serag, T J Taylor, D L White, S M Asch, S M Frayne, Y Cao, D L Smith, F Kanwal
There are gender-specific variations in the epidemiology and clinical course of hepatitis C virus (HCV) infection. However, few long-term longitudinal studies have examined trends in the incidence and prevalence of serious liver complications among women compared with men with HCV infection. We used the Veterans Administration Corporate Data Warehouse to identify all veterans with positive HCV viraemia from January 2000 to December 2013. We calculated gender-specific annual incidence and prevalence rates of cirrhosis, decompensated cirrhosis and hepatocellular cancer (HCC) adjusting for age, diabetes, HIV and alcohol use...
August 16, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28815532/hepatitis-c-virus-replication
#13
Tetsuro Suzuki
Viruses use synthetic mechanism and organelles of the host cells to facilitate their replication and make new viruses. Host's ATP provides necessary energy. Hepatitis C virus (HCV) is a major cause of liver disease. Like other positive-strand RNA viruses, the HCV genome is thought to be synthesized by the replication complex, which consists of viral- and host cell-derived factors, in tight association with structurally rearranged vesicle-like cytoplasmic membranes. The virus-induced remodeling of subcellular membranes, which protect the viral RNA from nucleases in the cytoplasm, promotes efficient replication of HCV genome...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28815420/road-map-for-the-structure-based-design-of-selective-covalent-hcv-ns3-4a-protease-inhibitors
#14
REVIEW
Letitia Shunmugam, Pritika Ramharack, Mahmoud E S Soliman
Over the last 2 decades, covalent inhibitors have gained much popularity and is living up to its reputation as a powerful tool in drug discovery. Covalent inhibitors possess many significant advantages including increased biochemical efficiency, prolonged duration and the ability to target shallow, solvent exposed substrate-binding domains. However, rapidly mounting concerns over the potential toxicity, highly reactive nature and general lack of selectivity have negatively impacted covalent inhibitor development...
August 16, 2017: Protein Journal
https://www.readbyqxmd.com/read/28815329/efficacy-and-safety-of-ledipasvir-sofosbuvir-with-ribavirin-in-chronic-hepatitis-c-patients-who-failed-daclatasvir-asunaprevir-therapy-pilot-study
#15
Yoshiiku Kawakami, Hidenori Ochi, Clair Nelson Hayes, Michio Imamura, Masataka Tsuge, Takashi Nakahara, Yoshio Katamura, Hiroshi Kohno, Hirotaka Kohno, Keiji Tsuji, Shintaro Takaki, Nami Mori, Yohji Honda, Keiko Arataki, Shoichi Takahashi, Shinsuke Kira, Toru Tamura, Kazunari Masuda, Toshio Nakamura, Masaya Kikkawa, Kazuaki Chayama
BACKGROUND: In Japan, daclatasvir (DCV) and asunaprevir (ASV) therapy was the first IFN-free treatment to be approved, and thousands of patients have since been successfully treated, with an SVR rate of around 90%. The converse, however, is that around 10% of patients fail to achieve viral eradication and must be retreated using a different approach. This study is to evaluate treatment efficacy of ledipasvir/sofosbuvir and ribavirin in patients who failed to respond to DCV and ASV therapy...
August 16, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28815296/autoantibodies-against-rods-and-rings-related-impdh2-in-hepatitis-c-genotype-1-and-daa-therapy-in-a-real-life-cohort
#16
Werner Dammermann, Susanne Polywka, Inga Dettmann, Swantje Mindorf, Lars Komorowski, Malte Wehmeyer, Julian Schulze Zur Wiesch, Winfried Stöcker, Stefan Lüth
Autoantibodies against inosine-5'-monophosphate-dehydrogenase-2 (IMPDH2; "rods and rings" pattern) develop in chronic hepatitis C (CHC) patients under treatment with peg-interferon (IFN) and ribavirin (RBV), an inhibitor of IMPDH2. We investigated the influence of the alternative therapy with direct-acting antivirals (DAA)/ribavirin on anti-IMPDH2 autoantibody generation and the use of anti-IMPDH2 development as a marker for therapy outcome (sustained virologic response, SVR). We analyzed a "real life" cohort of 104 unselected CHC genotype 1 (GT1) patients treated with IFN/first-generation DAA/RBV prospectively compared to a historic cohort of 59 IFN/RBV-treated CHC GT1 patients...
August 16, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28814840/epidemiology-and-synergistic-hepatopathology-of-malaria-and-hepatitis-c-virus-coinfection
#17
REVIEW
Idris Abdullahi Nasir, Sa'adatu Yakubu, Jelili Olaide Mustapha
Malaria and hepatitis C virus (HCV) infections are very common causes of human suffering with overlapping global geographic distributions. With the growing incidence of HCV infections in malaria-endemic zones and malaria in areas with exceptionally high HCV prevalence, coinfections and syndemism of both pathogens are likely to occur. However, studies of malaria and HCV coinfections are very rare despite the fact that liver-stage plasmodiasis and hepatitis C develop in hepatocytes which may synergistically interact...
2017: Virology: Research and Treatment
https://www.readbyqxmd.com/read/28814273/add-on-neurological-benefits-of-antiviral-therapy-in-hcv-patients-with-chronic-kidney-disease-a-nationwide-cohort-study
#18
Ming-Shyan Lin, Tien-Hsing Chen, Wey-Yil Lin, Chi-Hung Liu, Yung-Yu Hsieh, Wen-Nan Chiu, Chih-Hsiang Chang, Mei-Yen Chen, Chang-Min Chung, Yu-Sheng Lin
BACKGROUND: Hepatitis C virus (HCV)-infected patients with chronic kidney disease (CKD) have rarely been studied because they rarely accept interferon-based therapy (IBT) and have been difficult to follow up. We investigated long-term outcomes of IBT on the population. METHODS: This population-based cohort study used the Taiwan National Health Insurance Research Database as its data source. HCV patients diagnosed with CKD between Jan. 1, 2003, and Dec. 31, 2013, were selected...
August 16, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28813660/neutralizing-antibody-responses-to-viral-infections-are-linked-to-the-non-classical-mhc-class-ii-gene-h2-ob
#19
Lisa K Denzin, Aly A Khan, Francesca Virdis, Jessica Wilks, Melissa Kane, Helen A Beilinson, Stanislav Dikiy, Laure K Case, Derry Roopenian, Michele Witkowski, Alexander V Chervonsky, Tatyana V Golovkina
Select humans and animals control persistent viral infections via adaptive immune responses that include production of neutralizing antibodies. The precise genetic basis for the control remains enigmatic. Here, we report positional cloning of the gene responsible for production of retrovirus-neutralizing antibodies in mice of the I/LnJ strain. It encodes the beta subunit of the non-classical major histocompatibility complex class II (MHC-II)-like molecule H2-O, a negative regulator of antigen presentation. The recessive and functionally null I/LnJ H2-Ob allele supported the production of virus-neutralizing antibodies independently of the classical MHC haplotype...
August 15, 2017: Immunity
https://www.readbyqxmd.com/read/28813500/telomere-biology-and-telomerase-mutations-in-cirrhotic-patients-with-hepatocellular-carcinoma
#20
Flávia S Donaires, Natália F Scatena, Raquel M Alves-Paiva, Joshua D Podlevsky, Dhenugen Logeswaran, Barbara A Santana, Andreza C Teixeira, Julian J-L Chen, Rodrigo T Calado, Ana L C Martinelli
Telomeres are repetitive DNA sequences at linear chromosome termini, protecting chromosomes against end-to-end fusion and damage, providing chromosomal stability. Telomeres shorten with mitotic cellular division, but are maintained in cells with high proliferative capacity by telomerase. Loss-of-function mutations in telomere-maintenance genes are genetic risk factors for cirrhosis development in humans and murine models. Telomerase deficiency provokes accelerated telomere shortening and dysfunction, facilitating genomic instability and oncogenesis...
2017: PloS One
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