Article Publish Status: FREE
Abstract Title:

Long-term intake ofKW3110 prevents age-related chronic inflammation and retinal cell loss in physiologically aged mice.

Abstract Source:

Aging (Albany NY). 2018 Oct 19 ;10(10):2723-2740. PMID: 30341255

Abstract Author(s):

Yuji Morita, Kenta Jounai, Akihiko Sakamoto, Yasuyuki Tomita, Yoshihiko Sugihara, Hiroaki Suzuki, Konomi Ohshio, Masato Otake, Daisuke Fujiwara, Osamu Kanauchi, Mitsuo Maruyama

Article Affiliation:

Yuji Morita


Age-related chronic inflammation is a major risk factor for the incidence and prevalence of age-related diseases, including infectious and neurodegenerative diseases. We previously reported that a lactic acid bacteria,KW3110, activated macrophages and suppressed inflammation in mice and humans. In this study, we investigated whether long-term intake of heat-killed L. paracasei KW3110 modulated age-related inflammation and altered the gut microbiota in physiologically aged mice. Compared with age-matched control mice, fecal analyses of gut microbiota revealed that intake ofKW3110 mitigated age-related changes of beneficial bacterial composition, including thefamily.KW3110 intake also mitigated age-related immune defects by reducing the prevalence of interferon-gamma (IFN-γ) -producing inflammatory CD4-positive T cells in the lamina propia of the small intestine, and reduced serum levels of proinflammatory cytokines. Furthermore,KW3110 intake suppressed retinal inflammation by reducing proinflammatory cytokine-producing macrophage, and age-related retinal cell loss. Taken together, these findings suggested thatKW3110 mitigated age-related chronic inflammation through modulation of gut microbiota composition and immune system functions in aged mice, and also reduced age-related retinal ganglion cell (RGC) loss. Further studies are needed to evaluate the effect in age-related senescent changes of the retina.

Study Type : Animal Study

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