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Impact of Glucose Loading on Variations in CD4+ and CD8+ T Cells in Japanese Participants with or without Type 2 Diabetes

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Title: Impact of Glucose Loading on Variations in CD4+ and CD8+ T Cells in Japanese Participants with or without Type 2 Diabetes
Authors: Miya, Aika Browse this author
Nakamura, Akinobu Browse this author →KAKEN DB
Miyoshi, Hideaki Browse this author →KAKEN DB
Takano, Yoshinari Browse this author
Sunagoya, Kana Browse this author
Hayasaka, Koji Browse this author
Shimizu, Chikara Browse this author →KAKEN DB
Terauchi, Yasuo Browse this author
Atsumi, Tatsuya Browse this author →KAKEN DB
Keywords: proportion of CD4+ and CD8+ T cells
oral glucose tolerance test
glucose loading
glucose metabolism
Issue Date: 20-Mar-2018
Publisher: Frontiers Media
Journal Title: Frontiers in Endocrinology
Volume: 9
Start Page: 81
Publisher DOI: 10.3389/fendo.2018.00081
Abstract: Objective: The aim of this study was to examine the fluctuations in CD4+ T cells, CD8+ T cells, and natural CD4+CD25+FoxP3+T-regulatory (Treg) cells following an oral glucose tolerance test (OGTT) in participants with and those without type 2 diabetes (T2DM). Methods: 19 Japanese participants with T2DM (DM group) and 21 participants without diabetes (non-DM group) were recruited and underwent a 75-g OGTT. The cell numbers of leukocytes, lymphocytes, and the T cell compartment, such as CD4+, CD8+, and Treg, were calculated for blood samples obtained after an overnight 12 h fast and during a 75-g OGTT at 60 and 120 min. Results: Before glucose loading, no differences in the cell numbers of leukocytes, lymphocytes, CD4+, CD8+, and Treg were observed between the DM group and the non-DM group. The proportion of CD8+ was significantly reduced, whereas the proportion of CD4+ was significantly increased, after 120 min of glucose loading in both groups. The proportion of Treg was not affected. Furthermore, a significant positive correlation was observed between the AUC0-120 min of CD8+ and the change in the free fatty acid level following the OGTT (ρ = 0.39, P < 0.05), but not that of glucose or insulin. Conclusion: The proportion of CD4+ T cells was increased and that of CD8+ T cells was reduced after glucose loading in both subjects with and without diabetes. These findings suggest that glucose loading dynamically affects the balance of the circulating T lymphocyte subset, regardless of glucose tolerance.
Type: article
Appears in Collections:北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 中村 昭伸

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