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2003 JUN 4 - (NewsRx.com & NewsRx.net) -- by Maria G. Essig, MS, ELS, senior medical writer - Vaccination against hepatitis A stimulates release of both interferon-gamma and interleukin-10, according to a report in Pharmacotherapy.
Mary S. Hayney and colleagues at the University of Wisconsin in the United States evaluated cytokine production in 25 healthy adults immunized with an inactivated hepatitis A vaccine. Levels of interferon-gamma (IFN-gamma) and interleukin-10 (IL-10) were measured in sera on the day of vaccination and 2, 5, 7, 10, and 28 days afterward.
"Production of IFN-gamma and IL-10 by peripheral blood mononuclear cells stimulated in culture with hepatitis A virus was measured by enzyme-linked immunosorbent assay," reported the researchers.
The highest levels found for both IFN-gamma and IL-10 were on the tenth day after immunization (22.35 pg/mL and 11.75 pg/mL, respectively) and were significantly greater than baseline values (7.35 pg/mL and 1.00 pg/mL, respectively; p
A significant correlation was found between the IL-10:IFN-gamma ratio found on day 10 and the levels of anti-hepatitis A antibody levels on day 28 (p
"Both IFN-gamma and IL-10 are produced in response to ...