PMID- 37391316 OWN - NLM STAT- MEDLINE DCOM- 20231113 LR - 20240405 IS - 1878-0210 (Electronic) IS - 1878-0210 (Linking) VI - 17 IP - 5 DP - 2023 Oct TI - Lower serum zinc level is associated with higher fasting insulin in type 2 diabetes mellitus (T2DM) and relates with disturbed glucagon suppression response in male patients. PG - 493-498 LID - S1751-9918(23)00102-X [pii] LID - 10.1016/j.pcd.2023.05.008 [doi] AB - AIMS: Zinc ion can play critical role in glycemic control in diabetes mellitus (DM), contributing to both insulin synthesis and secretion. In this study, we aimed to investigate the level of zinc in diabetic patients and its association with glycemic parameters, insulin, and glucagon level. METHODS: 112 individuals (59 cases of type 2DM and 53 non-diabetic controls) were included in this study. Biochemical parameters (FBG, 2hpp, HbA1C), and zinc level in the serum were measured using colorimetric assays. Insulin and glucagon were measured by ELISA method. HOMA-IR, HOMA-B, reciprocal HOMA-B, and Quicki indices were calculated using appropriate formula. For further analysis, patients were divided into two groups: high (>135.5 mug/dl) and low (<135.5 mug/dl) zinc. Glucagon suppression was considered yes if 2hpp glucagon < fasting glucagon. RESULTS: Our results showed that serum Zn level in type 2 DM patients was lower than control (P value=0.02). Patients with lower Zn had higher fasting insulin (P value=0.006) and higher beta-cell activity index (HOMA-B, p value=0.02), however fasting glucagon and parameters of hyperglycemia (FBG, 2hpp, Hba1C) were not different. Moreover, insulin sensitivity and resistance indices (Quicki, HOMA-IR,1/HOMA-IR) showed non-significantly improved status in high Zn group. We found non-significant association between glucagon suppression and Zn level in both genders (N = 39, p value = 0.07), however, it was significant in males (N = 14, p value = 0.02). CONCLUSION: Altogether, our results indicated reduced serum Zn in type 2DM can exacerbate hyperinsulinemia and glucagon suppression (only significant in the male), highlighting its importance in type 2DM control. CI - Copyright (c) 2023. Published by Elsevier Ltd. FAU - Safarzad, Mahdieh AU - Safarzad M AD - Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran. FAU - Jazi, Marie Saghaeian AU - Jazi MS AD - Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran. Electronic address: marie.saghaeian@goums.ac.ir. FAU - Kiaei, Mohammadreza AU - Kiaei M AD - Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran. FAU - Asadi, Jahanbakhsh AU - Asadi J AD - Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230628 PL - England TA - Prim Care Diabetes JT - Primary care diabetes JID - 101463825 RN - 9007-92-5 (Glucagon) RN - 0 (Glycated Hemoglobin) RN - 0 (Blood Glucose) RN - 0 (Insulin) SB - IM MH - Humans MH - Male MH - Female MH - Glucagon MH - *Diabetes Mellitus, Type 2/diagnosis/drug therapy MH - Glycated Hemoglobin MH - Blood Glucose MH - Insulin MH - *Hyperinsulinism MH - *Insulin Resistance MH - Fasting OTO - NOTNLM OT - Glucagon OT - Insulin OT - Type 2 diabetes mellitus OT - Zinc COIS- Declaration of Competing Interest Authors declare that there are no competing interests in relation to the current study. EDAT- 2023/07/01 11:41 MHDA- 2023/11/13 06:42 CRDT- 2023/06/30 21:54 PHST- 2023/02/17 00:00 [received] PHST- 2023/05/29 00:00 [revised] PHST- 2023/05/30 00:00 [accepted] PHST- 2023/11/13 06:42 [medline] PHST- 2023/07/01 11:41 [pubmed] PHST- 2023/06/30 21:54 [entrez] AID - S1751-9918(23)00102-X [pii] AID - 10.1016/j.pcd.2023.05.008 [doi] PST - ppublish SO - Prim Care Diabetes. 2023 Oct;17(5):493-498. doi: 10.1016/j.pcd.2023.05.008. Epub 2023 Jun 28.