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The objective of the present study is to evaluate the antioxidant status in the blood of HCV patients treated with pegylated interferon (2a 1.5 ug/kg; 2b 180 ug) combined with ribavirin (1000 to 1250 mg) before and after supplementation of vitamins E, C and the mineral zinc (800 mg,500 mg and 40 mg; respectively) during six months.
The WHO estimated that around 170 million people are infected by HCV, about 3% of the world population. HCV is the leading cause of acute hepatitis and chronic liver disease, which may lead to cirrhosis and hepatocellular carcinoma.
The combined therapy with interferon with or without pegylation associated with ribavirin has shown greater sustained virological response than monotherapy with interferon-alpha, however this response still represents around 60% of cases. The mechanisms by which HCV causes cellular damage are not yet well understood, however immune liver damage, direct cytotoxic damage mediated by different viral products and also oxidative stress have been implicated in the pathogenesis of chronic hepatitis C. Several studies support that reactive oxygen species (ROS) and oxidative stress are involved in the pathogenesis of hepatitis C, despite that increased ROS levels in HCV patients might be beneficial by suppressing HCV replication. ROS are involved in several diseases and cause oxidative damage to lipids, DNA, proteins and carbohydrates.
Allocation: Randomized, Control: Uncontrolled, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Supportive Care
Hospital Nereu Ramos
Universidade do Sul de Santa Catarina
Published on BioPortfolio: 2014-08-27T03:19:06-0400
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INFLAMMATION of the LIVER in humans due to infection by VIRUSES. There are several significant types of human viral hepatitis with infection caused by enteric-transmission (HEPATITIS A; HEPATITIS E) or blood transfusion (HEPATITIS B; HEPATITIS C; and HEPATITIS D).
A family of hepatotropic DNA viruses which contains double-stranded DNA genomes and causes hepatitis in humans and animals. There are two genera: AVIHEPADNAVIRUS and ORTHOHEPADNAVIRUS. Hepadnaviruses include HEPATITIS B VIRUS, duck hepatitis B virus (HEPATITIS B VIRUS, DUCK), heron hepatitis B virus, ground squirrel hepatitis virus, and woodchuck hepatitis B virus (HEPATITIS B VIRUS, WOODCHUCK).
A species in the genus HEPATOVIRUS containing one serotype and two strains: HUMAN HEPATITIS A VIRUS and Simian hepatitis A virus causing hepatitis in humans (HEPATITIS A) and primates, respectively.
INFLAMMATION of the LIVER in humans caused by HEPATITIS DELTA VIRUS, a defective RNA virus that can only infect HEPATITIS B patients. For its viral coating, hepatitis delta virus requires the HEPATITIS B SURFACE ANTIGENS produced by these patients. Hepatitis D can occur either concomitantly with (coinfection) or subsequent to (superinfection) hepatitis B infection. Similar to hepatitis B, it is primarily transmitted by parenteral exposure, such as transfusion of contaminated blood or blood products, but can also be transmitted via sexual or intimate personal contact.
INFLAMMATION of the LIVER in humans caused by HEPATITIS C VIRUS, a single-stranded RNA virus. Its incubation period is 30-90 days. Hepatitis C is transmitted primarily by contaminated blood parenterally, and is often associated with transfusion and intravenous drug abuse. However, in a significant number of cases, the source of hepatitis C infection is unknown.
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