PMID- 33413319 OWN - NLM STAT- MEDLINE DCOM- 20211004 LR - 20240330 IS - 1472-6823 (Electronic) IS - 1472-6823 (Linking) VI - 21 IP - 1 DP - 2021 Jan 7 TI - The relationship between red blood cell distribution and islet beta-cell function indexes in patients with type 2 diabetes. PG - 7 LID - 10.1186/s12902-020-00668-4 [doi] LID - 7 AB - BACKGROUND: Red cell distribution width (RDW) is a predicter of infections, cancer and diabetes. However, the relationship between RDW and beta-cell function and insulin resistance remains unclear in patients with type 2 diabetes mellitus (T2DM). The aim of the study was to explore the relationship between RDW and beta-cell function in patients with T2DM. METHODS: A total of 559 T2DM patients were enrolled in this cross-sectional study. Patients were divided into three groups according to RDW tertiles. Clinical and biochemical characteristics such as age, duration of diabetes, blood pressure, RDW, glycosylated hemoglobin A1c (HbA1c), C-peptide and lipid profiles were collected. Homeostasis model assessment of insulin resistance (HOMA2IR) and homeostasis model assessment of beta-cell function (HOMA2%B) were assessed using homeostasis model assessment (HOMA) based on fasting blood glucose (FBG) and fasting C-peptide index (FCPI). Correlations and multiple linear regressions were performed to explore the association between RDW and islet function indexes in total population and in different gender subgroups. RESULTS: The HOMA2%B gradually increased according to RDW tertiles (lowest, second, highest RDW tertiles; 47.1(32.9-75.4), 54.05(34.1-81), and 57.9(38.65-95.4), respectively; P = 0.036). Correlation analysis indicated that there were significant correlations between RDW and age, diabetes duration, diastolic blood pressure (DBP), triglycerides (TG), aspartate transaminase (AST), FBG, HbA1c and HOMA2%B in all subjects. In male subjects, RDW correlated positively with age, high-density lipoprotein cholesterol (HDL) and AST, and it correlated negatively with body mass index (BMI), DBP and TG. In female subjects, RDW correlated positively with age, duration, serum creatinine (Cr), FCPI and HOMA2%B, and it correlated negatively with alanine transaminase (ALT), FBG and HbA1c. Multiple linear regressions indicated that RDW was significantly correlated with HOMA2%B and HbA1c in the total population in both unadjusted and adjusted analysis. This finding could be reproduced in the subgroup of men for HOMA2%B only and in women for HbA1c only. CONCLUSIONS: RDW is associated with beta-cell function assessed by HOMA2%B after adjusting for covariates in male T2DM patients. FAU - Zhang, Deyuan AU - Zhang D AD - Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People's Republic of China. FAU - Zhang, Siqi AU - Zhang S AD - Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People's Republic of China. FAU - Wang, Lifang AU - Wang L AD - Clinical Epidemiology Research Center, Beijing Jishuitan Hospital, Beijing, People's Republic of China. FAU - Pan, Tianrong AU - Pan T AD - Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People's Republic of China. pantianrong1968@163.com. FAU - Zhong, Xing AU - Zhong X AD - Department of Endocrinology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People's Republic of China. zhongxing761@163.com. LA - eng PT - Journal Article DEP - 20210107 PL - England TA - BMC Endocr Disord JT - BMC endocrine disorders JID - 101088676 RN - 0 (Biomarkers) RN - 0 (Blood Glucose) RN - 0 (Glycated Hemoglobin A) RN - 0 (hemoglobin A1c protein, human) SB - IM MH - Adult MH - Aged MH - Biomarkers/*blood MH - Blood Glucose/analysis MH - China/epidemiology MH - Cross-Sectional Studies MH - Diabetes Mellitus, Type 2/*epidemiology/metabolism/pathology MH - Erythrocytes/metabolism/*pathology MH - Female MH - Follow-Up Studies MH - Glycated Hemoglobin/*analysis MH - Humans MH - *Insulin Resistance MH - Insulin-Secreting Cells/metabolism/*pathology MH - Male MH - Middle Aged MH - Prognosis PMC - PMC7791877 OTO - NOTNLM OT - Glycosylated hemoglobin A1c OT - Red blood cell distribution width OT - Type 2 diabetes mellitus OT - beta-Cell function COIS- The authors declare that they have no competing interests. EDAT- 2021/01/09 06:00 MHDA- 2021/10/05 06:00 PMCR- 2021/01/07 CRDT- 2021/01/08 05:43 PHST- 2020/03/17 00:00 [received] PHST- 2020/12/16 00:00 [accepted] PHST- 2021/01/08 05:43 [entrez] PHST- 2021/01/09 06:00 [pubmed] PHST- 2021/10/05 06:00 [medline] PHST- 2021/01/07 00:00 [pmc-release] AID - 10.1186/s12902-020-00668-4 [pii] AID - 668 [pii] AID - 10.1186/s12902-020-00668-4 [doi] PST - epublish SO - BMC Endocr Disord. 2021 Jan 7;21(1):7. doi: 10.1186/s12902-020-00668-4.