Alipoor E, Yaseri M, Mehrdadi P, Mahdavi-Mazdeh M, Murphy T, Hosseinzadeh-Attar MJ. The relationship between serum adipokines and glucose homeostasis in normal-weight and obese patients on hemodialysis: a preliminary study.
Int Urol Nephrol 2020;
52:2179-2187. [PMID:
32761485 DOI:
10.1007/s11255-020-02582-z]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 07/25/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE
Insulin resistance (IR) is a prevalent disorder in advanced renal failure irrespective of diabetes. Adipokines might play a role in IR, which has not been well-documented in uremic conditions. This study investigated the relationship of Zinc-α2-glycoprotein (ZAG), adipose triglyceride lipase (ATGL), and adipolin with glucose-insulin homeostasis in normal weight (NW) and obese (OB) patients with hemodialysis.
METHODS
In this cross-sectional study, 59 patients (29 NW; 18.5 ≤ BMI < 25 kg/m2, and 30 OB; BMI ≥ 30 kg/m2) were studied. Anthropometries, circulating ZAG, adipolin, ATGL, free fatty acids (FFAs), fasting blood glucose (FBG), insulin, and homeostasis model assessment of IR (HOMA)-IR were assessed.
RESULTS
There were no significant differences in age, gender, hemodialysis duration, dialysis adequacy and diabetes between the two groups. ZAG (100.9 ± 37.1 vs. 107.5 ± 30.5 ng/mL, P = 0.03) and adipolin (12.4 ± 1.6 vs. 13.2 ± 2.8 ng/mL, P = 0.002) concentrations were significantly lower, and FFAs (228.1 ± 112.6 vs. 185 ± 119 ng/mL, P = 0.014) were significantly higher in the OB than NW group. No significant differences were observed in ATGL, FBG, insulin and HOMA-IR between the two groups. Patients with lower IR had higher ZAG (112.9 ± 31.7 vs. 94.9 ± 34.5 ng/mL; P = 0.046), lower FFAs (167.8 ± 98.4 vs. 249.9 ± 120.8 ng/mL; P = 0.004), and marginally lower ATGL (9.1 ± 5.2 vs. 12.3 ± 9.6 mIU/mL; P = 0.079) concentrations than those with higher IR. ZAG was negatively (r = - 0.323, P = 0.018 and r = - 0.266, P = 0.054) and FFAs were positively (r = 0.321, P = 0.019 and r = 0.353, P = 0.009) correlated with insulin and HOMA-IR, respectively. ATGL was directly correlated with FFAs (r = 0.314, P = 0.018).
CONCLUSIONS
Novel adipokines, ZAG and ATGL, might contribute to glucose-insulin homeostasis in hemodialysis. Understanding potential causative, diagnostic or therapeutic roles of adipokines in IR require further studies.
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