The pathogenesis of chronic hepatitis C (CHC) is associated with severe oxidative stress and non-selective immunological disturbance that lead to necroinflammation and the progression of fibrosis. Several trials have suggested that antioxidant and immunostimulant therapies may have a beneficial effect. Two previous clinical studies have reported that the Viusid related effect on histologic features, especially fibrosis, appears to be associated with antioxidant and/or immunomodulatory properties. However, the putative mechanism of action of Viusid is unknown.
A research article to be published on June 7, 2010 in the World Journal of Gastroenterology addresses this question. The authors reported the results of a randomized double-blind and placebo-controlled study to evaluate the effect of Viusid on oxidative stress and cytokine parameters in patients with CHC who had been nonresponders to previous antiviral therapy with peginterferon plus ribavirin and infected with genotype 1.
Their results show that Viusid improves oxidative stress through reduction of lipid peroxidation products and has an immunomodulatory effect on cytokine secretion via increased production of IFN-γ and IL-10, decreased production of IL-1α, and stabilized TNF-α secretion in patients with CHC who have failed previous antiviral treatment. Thus, Viusid is an interesting strategy of treatment for those patients who don’t eradicate their viral infection or when antiviral treatment is contraindicated (decompensated cirrhosis). The administration of Viusid was well tolerated. Further studies are needed to evaluate the clinical impact of the administration of Viusid in patients with end-stage liver disease secondary to CHC.
Reference: Gomez EV, Perez YM, Sanchez HV, Forment GR, Soler EA, Bertot LC, Garcia AY, del Rosario Abreu Vazquez M, Fabian LG. Antioxidant and immunomodulatory effects of Viusid in patients with chronic hepatitis C. World J Gastroenterol 2010; 16(21): 2638-2647 http://www.wjgnet.com/1007-9327/full/v16/i21/2638.htm
Correspondence to: Dr. Eduardo Vilar Gomez, PhD, Associated Professor, Department of Hepatology, National Institute of Gastroenterology, 25th Avenue, 503, Vedado, Havana 10400, Cuba. [email protected]
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About World Journal of Gastroenterology
World Journal of Gastroenterology (WJG), a leading international journal in gastroenterology and hepatology, has established a reputation for publishing first class research on esophageal cancer, gastric cancer, liver cancer, viral hepatitis, colorectal cancer, and H pylori infection and provides a forum for both clinicians and scientists. WJG has been indexed and abstracted in Current Contents/Clinical Medicine, Science Citation Index Expanded (also known as SciSearch) and Journal Citation Reports/Science Edition, Index Medicus, MEDLINE and PubMed, Chemical Abstracts, EMBASE/Excerpta Medica, Abstracts Journals, Nature Clinical Practice Gastroenterology and Hepatology, CAB Abstracts and Global Health. ISI JCR 2008 IF: 2.081. WJG is a weekly journal published by WJG Press. The publication dates are the 7th, 14th, 21st, and 28th day of every month. WJG is supported by The National Natural Science Foundation of China, No. 30224801 and No. 30424812, and was founded with the name of China National Journal of New Gastroenterology on October 1, 1995, and renamed WJG on January 25, 1998.