T淋巴細(xì)胞亞群及維生素D水平與衰老的關(guān)系
[Abstract]:Objective to investigate the changes of T lymphocyte phenotype and serum 25 hydroxyvitamin D [25 (OH) D] level with age. Methods 216 healthy subjects were divided into three groups according to their age: group 1 (n = 85), group 2 (n = 76) (n = 61), group 3 (n = 55) (n = 80). The T lymphocyte subsets in peripheral blood were analyzed by four color immunofluorescence labeling flow cytometry and the blood 25-(OH) D levels were measured by chemiluminescence analyzer. Results (1) CD4~ and CD8~ of peripheral blood T lymphocyte subsets in all age groups were in normal range, and there was no statistical difference between groups (P0.05). The CD3~ of group 1 was significantly higher than that of group 2 and group 3 (P0.05). (2), and that of group 2 and group 3 (P0.05). (3) was significantly higher than that of group 2 and group 3 (P0.05). (3). The level of 25- (OH) D in group 2 was significantly lower than that in group 1 and group 3 (P0.05). (4) there was a negative correlation between serum 25- (OH) D level and age (r-0.021, r = 0.021). There was a positive correlation between T cell subsets and CD95 (r = 0.17, P 0.05). Conclusion the changes of CD4~ and CD8~ in T lymphocyte subsets were not obvious with age, but CD3~ decreased, CD95 expression increased gradually, and serum 25 (OH) D decreased gradually. These results suggest that D 95 (OH) D may be a potential biomarker for the evaluation of immune aging.
【作者單位】: 江西省人民醫(yī)院一部;
【基金】:江西省科技廳科技計(jì)劃項(xiàng)目(20060140)
【分類(lèi)號(hào)】:R339.38
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