Improvements in the activity of white blood cells in elderly adults, a group of individuals with a higher chance of infections, may occur with daily supplementation of the Probiotic strain containing Bifidobacterium Lactis.
37 healthy older adults participated in this double-blinded placebo-controlled randomized cross-over study. Participants were randomly assigned to receive a Prebiotic (GOS), a Probiotic containing Bifidobacterium Lactis, a combination of a prebiotic (GOS) and probiotic containing Bifidobacterium Lactis or a placebo. The supplements were taken for 21 days with a 28 day wash-out period. Participants supplementing with the Probiotic containing the Bifidobacterium Lactis strain showed higher phagocytic activity of granulocytes and monocytes when compared to the group supplementing with the placebo. Phagocytosis is the process in which immune cells basically eat bacteria or infected cells and is one of the ways that help the body resist infections. This study showed that the Probiotic strain Bifidobacterium Lactis may help elderly individuals increase the activity of these phagocytic cells.
Researchers concluded that supplementing with the Bifidobacterium Lactis strain of friendly bacteria may provide long term benefits to the health of elderly individuals by not aiding to the inflammation-associated metabolic disorders. Additionally they believe that this strain of friendly bacteria enhances the innate immune defense against infections.
Larger studies are needed to confirm these findings.
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