Search results for "HCV"

Association of vitamin D serum levels and its common genetic determinants, with severity of liver fibrosis in genotype 1 chronic hepatitis C patients.

2013

Background and aims: Lower 25-Hydroxyvitamin D (25[OH]D) serum lev- els have been associated with the severity of liver fibrosis in genotype 1 chronic hepatitis C patients (G1CHC). In addition, a recent genome-wide study identified genetic variants (rs12785878, near dehydrocholesterol reduc- tase, DHCR7; rs10741657, near CYP2R1; and rs7041, near vitamin D binding protein, GC) affecting 25(OH)D serum levels in healthy populations. We aimed to assess the association between vitamin D serum levels and its genetic determinants, with the severity of liver fibrosis. Material and methods: Two hundred sixty patients with biopsy-proven G1CHC were consecutively evaluated. The 25(OH)D serum levels wer…

Vitamin D and Osteoporosis in HIV/HCV Coinfected Patients: A Literature Review

2015

Vitamin D deficiency further increases the risk of osteoporosis in HIV-positive patients coinfected with hepatitis C virus (HCV); however, it is still unclear whether HCV-related increased fracture risk is a function of the severity of liver disease. The aim of this review was to identify studies on associative vitamin D deficiency patterns in high-risk populations such as HIV/HCV coinfected patients. We did this by searching MEDLINE and EMBASE databases, from inception to August 2014, and included bibliographies. The final 12 articles selected are homogeneous in terms of age but heterogeneous in terms of sample size, participant recruitment, and data source. Most of the HIV/HCV coinfected …

Burden of HIV and hepatitis C co-infection: the changing epidemiology of hepatitis C in HIV-infected patients in France.

2015

Équipe UB/CHU (EA) Pôle MERS CT3 Hors Enjeu; International audience; Background & AimsTo better evaluate the HIV-HCV co-infection burden in the context of new effective HCV treatment. MethodsWe reviewed all the epidemiological data available on HCV-related disease in HIV-infected patients in France. Sources of data have been selected using the following criteria: (i) prospective cohorts or cross-sectional surveys; (ii) conducted at a national level; (iii) in the HIV-infected population; (iv) able to identify HCV co-infection and chronic active hepatitis C (HCV RNA positive); and (v) conducted during the period 2003-2012. ResultsThe overall prevalence of HIV-HCV co-infection has decreased fr…

Alcohol and Cannabis Consumption Does Not Diminish Cure Rates in a Real-World Cohort of Chronic Hepatitis C Virus Infected Patients on Opioid Substit…

2019

Background: The importance of alcohol and cannabis consumption for the effectiveness of treatment of chronic hepatitis C virus (HCV) infection with direct acting antivirals (DAAs) in people on opioid substitution therapy (OST) has not been investigated in detail. Methods: We investigated sustained virological response (SVR) rates and proportion of lost to follow-up (LTFU) between OST (n = 739) and non-OST patients (n = 7008) in the German Hepatitis C-Registry (Deutsches Hepatitis C-Register, DHC-R), which is a national multicenter prospective non-interventional real-world registry. Non-OST patients comprised patients with former/current drug use (non-OST/DU; n = 1500) and patients never con…

Influenza dei percorsi formativi sulle conoscenze di infezioni da HIV, HBV e HCV nella pratica odontoiatrica

2005

The knowledge and preventive practices toward the risk of infection with HIV, HBV and HCV were evaluated in a sample of 254 dentists and odontostomatologies in Palermo, by answering to an anonymous questionnaire sent by mail. Overall, most of the participants showed a good knowledge of the transmission pattern of blood-borne viruses as well as good practice for personal hygiene (washing of hands, routine use of gloves, etc.). However 80.8% answered to recap needles after use and more than 40% have had at least one needle injury during the last year in their occupational setting. Moreover, nearly 24% of the interviewed declared to have not made vaccination against Hepatitis B virus infection…

Cardiovascular diseases and HCV infection: a simple association or more?

2013

HCV infection, metabolic disorders and cardiovascular alterations, considered alone or in combination, are common conditions in a large proportion of the general population. Consequently, determining whether the association of HCV infection with cardiometabolic disorders is simply coincidental or, conversely, caused by pathogenetic mechanisms (in)directly linking chronic HCV infection to these disorders, would be of extreme relevance. Several clinical studies have shown that metabolic disorders—namely, type 2 diabetes,1 insulin resistance (IR)2 and hepatic steatosis3—are highly prevalent in patients with chronic hepatitis C (CHC) compared with non-infected patients. Experimental and clinica…

Hepatīta C vīrusa ARFP ekspresija Escherichia coli un īpašību raksturošana

2017

Ar C hepatīta vīrusu inficēto cilvēku skaits pasaulē ir apmēram 170 miljoni. Pret HCV nav vakcīnas, tāpēc tiek veikti pētījumi, kas saistīti ar tās izstrādi. Darba mērķis bija iegūt HCV alternatīvā nolasīšanas rāmja proteīnus divās plazmīdu sistēmās, un optimizēt ekspresijas un attīrīšanas apstākļus augstas kvalitātes proteīnu iegūšanai. Darbā tika izmantoti dažāda garuma un genotipa ARFP un divas klonēšanas un ekspresijas plazmīdas ar atšķirīgu 6xHistag iezīmes novietojumu. Pēc indukcijas ar IPTG apstākļu optimizācijas augstākā ARFP ekspresija E. coli BL21(DE3) šūnās tika iegūta, inducējot 4h pie + 37°C un 6h pie + 30°C ar 0,4 mM IPTG. Pēc ARFP attīrīšanas ar imobilizēto metālafīno hromato…

Utilità della misurazione elastografica nei pazienti HCV e HIV positivi nella valutazione della fibrosi epatica avanzata

2010

Dynamics, evolutionary and epidemiological patterns of RNA viruses

2017

Viral infections, specifically those caused by RNA viruses such as Human Immunodeficiency virus (HIV), Hepatitis C virus (HCV) or Influenza, are among the most important public health concerns to humans due to their high prevalence and associated mortality. Prevention and treatment campaigns against these viruses usually had limited efficacy, partly because their biological features allow them to reach very high levels of diversity, both at the within- and between-host levels. Research focused on understanding the processes and mechanisms involved in the evolution of RNA viruses, and on the clinical and/or epidemiological consequences of their diversification, is important for improving the…

HCV vīrusa genomu CORE/ARFP reģiona sekvenču analīze

2015

C hepatīta vīruss (HCV) – pieder flavivīrusu dzimtai. HCV ir apvalku saturošs vīruss. HCV var izraisīt tikai cilvēka un augstāko primātu slimības. C hepatīta vīrusa (HCV) ierosināta infekcija ir pasaulē izplatīts iemesls hroniskām aknu slimībām. Pret HCV vēl nav izstrādāta vakcīna. HCV ir pirmais vīruss, kas ir atklāts ar molekulārās klonēšanas palīdzību, bez tiešas bioloģisko vai biofizikālo metožu palīdzības. Galvenā HCV vīrusa īpatnība ir izteikta ģenētiskā mainība. ARFP (alternatīvās nolasīšanas rāmja proteīns) jeb F (nobīdes), jeb core +1 proteīns (17 kDa) ir radies ribosomu -2/+1 nobīdes rezultātā N-gala core -kodēšanas reģionā HCV poliproteīnā. Joprojām nav zināma ARFP bioloģiskā fun…