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标题：Early 1,25-Dihydroxyvitamin D3 Supplementation Effectively Lowers the Incidence of Type 2 Diabetes Mellitus via Ameliorating Inflammation In KK-Ay Mice
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作者：LI-Qiang TIAN ; YAN-Ting YU ; MENG-Di JIN 等
期刊名称：Journal of Nutritional Science and Vitaminology
印刷版ISSN：0301-4800
电子版ISSN：1881-7742
出版年度：2021
卷号：67
期号：2
页码：84-90
DOI：10.3177/jnsv.67.84
出版社：Center for Academic Publications Japan
摘要：Few studies have been performed to investigate the effect of vitamin D supplementation and T2DM in type 2 diabetic animal models. The present study aimed to explore the relationship between early 1,25-dihydroxyvitamin D 3 [1,25(OH) 2 D 3 ] and the incidence of T2DM and determine whether early 1,25(OH) 2 D 3 supplementation was associated with inflammation in KK-A y mice. The KK-A y mice were divided into 4 vitamin D treatment groups, the low-dose vitamin D supplementation group (VDS-L, 1.5 μg/kg 1,25(OH) 2 D 3 ), moderate-dose vitamin D supplementation group (VDS-M, 3.0 μg/kg 1,25(OH) 2 D 3 ), high-dose vitamin D supplementation group (VDS-H, 6.0 μg/kg 1,25(OH) 2 D 3 ) and the model control group (MC). C57BL/6J mice were used as the controls. The treatment period lasted for 9 wk. During this treatment period, fasting blood glucose (FBG) level of the mice was measured on a weekly basis. The levels of lipid profile, insulin and inflammation biomarkers were determined after 9 wk of 1,25(OH) 2 D 3 intragastric gavage. After 9 wk of 1,25(OH) 2 D 3 intragastric gavage, FBG level was significantly decreased in the vitamin D treatment groups compared with the MC group. The number of T2DM incidence in the VDS-L group ( n =7), VDS-M group ( n =5) and VDS-H group ( n =3) was lower than those in the MC group ( n =10) on week 9. Moreover, serum C-reactive protein (CRP) and interleukin-6 (IL-6) in the vitamin D treatment groups were significantly suppressed by 1,25(OH) 2 D 3 administration compared with the MC group. Early 1,25(OH) 2 D 3 supplementation could effectively lower the incidence of T2DM via ameliorating inflammation in KK-A y mice.
关键词：vitamin D;type 2 diabetes mellitus;inflammation;insulin resistance