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Fasting serum bile acids concentration is associated with insulin resistance independently of diabetes status

 Sang-Guk Lee  ;  Yong-ho Lee  ;  Eunhye Choi  ;  Yonggeun Cho  ;  Jeong-Ho Kim 
 Clinical Chemistry and Laboratory Medicine, Vol.57(8) : 1218-1228, 2019 
Journal Title
 Clinical Chemistry and Laboratory Medicine 
Issue Date
GLP-1 ; bile acids profile ; insulin resistance ; obesity ; type 2 diabetes mellitus
Background Bile acids (BAs) have been demonstrated to exert a variety of metabolic effects and alterations in BAs have been reported in patients with obesity, insulin resistance (IR) and type 2 diabetes mellitus (T2DM). However, it is unclear which metabolic condition is the main contributor to alterations in BAs. In this study, we investigate the associations between different BA profiles with glycemia, obesity or IR status. Methods Fasting serum concentrations of 15 BA species were determined in a total of 241 individuals (71 drug-naïve patients with T2DM, 95 patients with impaired fasting glucose [IFG], and 75 healthy controls. Results A comparison of the mean values of the BAs revealed no significant differences between normoglycemic controls and patients with IFG or T2DM. However, when the entire cohort was divided according to the presence of IR as determined by a homeostasis model assessment of insulin resistance (HOMA-IR) value >2.5, the levels of total BA and most species of BAs were significantly higher in patients with IR than in patients without. In the correlation analysis, most species of BAs, as well as total BA, were significantly associated with HOMA-IR levels. Furthermore, when the subjects were divided into four groups according to IR and diabetic status, subjects with IR had significantly higher total BAs than participants without IR both in diabetic and non-diabetic groups. Ultimately, multiple linear regression analysis identified HOMA-IR as the only significant contributor to most serum BA species. Conclusions Our findings support the essential role of IR in regulating BA metabolism and that this effect is independent of diabetic status.
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1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jeong Ho(김정호) ORCID logo https://orcid.org/0000-0003-2479-0548
Lee, Sang-Guk(이상국) ORCID logo https://orcid.org/0000-0003-3862-3660
Lee, Yong Ho(이용호) ORCID logo https://orcid.org/0000-0002-6219-4942
Cho, Yonggeun(조용근) ORCID logo https://orcid.org/0000-0003-1946-4318
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