Homeopathic treatments modify inflammation but not behavioral response to influenza antigen challenge in BALB/c mice
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2016
Autores
Siqueira, Camila Monteiro
Motta, Priscila Dias
Cardoso, Thayna Neves
Coelho, Cideli de Paula
Popi, Ana Flavia [UNIFESP]
Couceiro, Jose Nelson
Bonamin, Leoni Villano
Holandino, Carla
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Background: Influenza affects thousands of people worldwide every year, motivating the development of new therapies. In this work, the effects of two homeopathic preparations (influenza biotherapies and thymulin) were chosen following two different rationales: isotherapy and endo-isotherapy models. The homeopathic effects were evaluated individually considering the inflammatory and behavioral responses against influenza virus antigen were studied in BALB/c mice. Methods: Male adult mice were treated orally and blindly for 21 days with highly diluted influenza virus or with thymulin, and were divided in two sets of experiments. The first series of experiments aimed to describe their behavior, using an open field (OF) device. In the second series, mice were challenged subcutaneously with influenza hemagglutinin antigen (7 mu g/200 mu l) at day 21. At day 42, behavior and inflammation response were evaluated. Results: No behavioral changes were seen in OF tests at any time point after treatments. Flow cytometry and morphometry revealed significant changes in T and B cell balance after influenza antigen challenge, varying according to treatment. Conclusion: The results show that both homeopathic treatments induced subtle changes in acquired immune anti-viral response regulation. A deeper understanding of the mechanism could elucidate their possible use in influenza epidemiological situations.
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Homeopathy. Oxford, v. 105, n. 3, p. 257-264, 2016.