Immunoenhancing effects of a new probiotic strain, Lactobacillus fermentum PL9005.

The immunoenhancing effects of Lactobacillus fermentum PL9005 were assessed via mouse intragastric inoculation. The number of immunoglobulin A-positive cells in the small intestine, CD4+ T lymphocytes in the peripheral blood, and the lymphocyte proliferation response to mitogen stimulation (lipopolysaccharide) increased in mice fed L. fermentum PL9005.