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Cell Immunol. 2010;260(2):63-5. doi: 10.1016/j.cellimm.2009.09.002.

Immune system stimulation in rats by Lactobacillus sp. isolates from Raffia wine (Raphia vinifera).

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Laboratoire de Biochimie des Plantes Médicinales, des Sciences Alimentaires et de Nutrition (LABPMAN), The University of Dschang, Department of Biochemistry, Faculty of Sciences, Dschang, Cameroon.


The immune system consists of organs and several cell types. Antigen interaction with these cells induces a cellular immune response mediated by activated cells. The effects of lactic acid bacteria on the systemic immune response and on the secretory immune system are described. The current investigation sets out to examine the possible effects of isolated wine lacto-bacilli upon various hematologic and immunologic parameters in rats. We have fed rats with probiotic isolates from Raffia wine and challenged with castor oil; two control groups were fed with castor oil and others were not. We counted blood cells at the end of the experiment; all isolates seemed to cause a decrease of circulating white blood cells. The percentage of lymphocytes and the total protein in the spleen increased in the treated animals; also a normal aspect of faeces was observed compared to the control. These isolates of Lactobacillus seem to occur to immune cell-mediated responses in rats.

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