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- 저자 : ( Yi Haw Ji ) (검색결과 1 건)
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Immune modulation effect of probiotics in ageing mouse
( Sook In Ryu ),( Yi Haw Ji ),( Dae Won Park ),( Il-hwan Kim ) 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.2
Background: With aging, immune senescence increases inflammation. The immune modulation effect of probiotics has been studied, but its mechanism needs to be elucidated. Objectives: To investigate the immune modulation effect of probiotics in aging mice. Methods: Six week-old mice(group A) and 14 month-old mice(group B & C) were each fed with saline(group A and B) and probiotics(group C). After 5 weeks, their spleens and blood were collected. Splenocyte suspensions were prepared and CD4+25- and CD4+25+ lymphocyte populations were analyzed with flow cytometry. The presence of INF-γ, IL-6 and TNF-α were measured in the splenic macrophage supernatants and blood serum samples before and after treatment with LPS. Results: We measured the differences of the level of INF-γ, IL-6 and TNF-α before and after LPS stimulation and the differences were compared among the 3 groups. IL-6 and TNF-α showed significant differences between group B and C. The level of INF-γ, IL-6 and TNF-α in blood serum and the FACS analysis of lymphocytes showed no difference among the 3 groups. Conclusion: The probiotics group showed less increase of TNF-α and IL-6 compared to that of the old mice control group. However, the probiotics group did not show elevation of CD4+25- cells compared to the control group. Also, INF-γ, IL-6 and TNF-α level in blood serum showed no significant differences between the control and probiotics group. We are planning further research to investigate the immune modulation effect of probiotics.
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