Increased production of autoantibodies and specific antibodies in response to influenza virus vaccination in physically active older individuals

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Abstract

Immunosenescence is associated to aging and among many changes in immune response is reported a reduced response to vaccination and an increase in the number of cases of autoimmunity, caused by autoantibodies known as natural antibodies whose function, according to reports, would be protection against infection and inflammation. Although immunosenescence is an irreversible process, regular moderate exercise can attenuate some aspects of the decline in the immune system. So, the aim of this study was to investigate the humoral immune response in physically active elderly individuals before and 30 days after vaccination against influenza virus. The results showed that the percentage of individuals positive for antinuclear antibodies and serum immunoglobulin M and G levels after vaccination were higher in the group that exercised regularly than in the sedentary group. We were also able to demonstrate a significant correlation between levels of natural autoantibodies and response to vaccination. © 2013 Elsevier B.V.

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Bachi, A. L. L., Suguri, V. M., Ramos, L. R., Mariano, M., Vaisberg, M., & Lopes, J. D. (2013). Increased production of autoantibodies and specific antibodies in response to influenza virus vaccination in physically active older individuals. Results in Immunology, 3, 10–16. https://doi.org/10.1016/j.rinim.2013.01.001

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