PMID- 34353101 OWN - NLM STAT- MEDLINE DCOM- 20210809 LR - 20210809 IS - 2224-5839 (Electronic) IS - 2224-5820 (Linking) VI - 10 IP - 7 DP - 2021 Jul TI - Association between plasma homocysteine levels and pancreatic islet beta-cell function in the patients with type 2 diabetes mellitus: a cross-sectional study from China. PG - 8169-8179 LID - 10.21037/apm-21-1671 [doi] AB - BACKGROUND: This study sought to investigate the association between plasma homocysteine (HCY) levels and pancreatic islet beta-cell function in type 2 diabetes mellitus (T2DM) patients. METHODS: 430 hospitalized T2DM patients were enrolled in this cross-sectional study from December 2013 to December 2016. All participants were requested to complete a detailed questionnaire and undergo anthropometric measurements. Blood samples were collected from all participants. A 75-g oral glucose tolerance test (OGTT) was performed to diagnose T2DM in each individual, and an insulin releasing test (IRT) was used to calculate selected parameters for glucose, insulin, and C-peptide. Linear correlation and multivariate regression analyses were performed to assess the association between serum HCY concentration and these parameters. RESULTS: Patients were divided into the following subgroups based on quartiles of serum HCY levels: Group Q1: <17.03 micromol/L; Group Q2: 17.03-19.50 micromol/L; Group Q3: 19.5-24.7 micromol/L; and Group Q4: >24.7 micromol/L. The levels of fasting blood glucose (FBG), 2 h postprandial blood glucose (2hPBG), glycated hemoglobin A1c (HbA1c), fasting C-peptide and fasting insulin increased significantly as HCY levels increased (P<0.05). The area under the curves (AUCs) of serum glucose and insulin in IRT increased significantly and that of serum C-peptide decreased as HCY levels increased (P<0.05). The levels of Homeostasis Model Assessment-beta (HOMA-beta), Modified Beta-cell function Index (MBCI), Disposal Index (DI), C-peptide immunoreactivity (CPR), Insulinogenic Index 30 (IGI 30), and Secretory Units of Islets in Transplantation (SUIT) decreased as HCY levels increased. An inverse linear correlation was found between HOMA-beta, MBCI, DI, CPR, IGI 30, SUIT 0 h, and HCY plasma concentration (R2, 0.539, 0.569, 0.500, 0.676, 0.579, and 0.588, respectively; P<0.001), and this association was independent of many confounders, such as age, gender, body mass index, glucose and insulin levels, and HbA1c. CONCLUSIONS: Serum HCY levels were inversely related to the parameters for pancreatic islet beta-cell function. Thus, the insulin releasing function of beta cells in the pancreas can be well elucidated by plasma HCY concentration. FAU - Yuan, Xinlu AU - Yuan X AD - Department of Endocrinology and Metabolic Diseases, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China; Department of Endocrinology and Metabolic Diseases, Affiliated Hospital of Nantong University, Nantong, China. FAU - Ding, Sheng AU - Ding S AD - Department of Endocrinology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. FAU - Zhou, Ligang AU - Zhou L AD - Department of Endocrinology and Metabolic Diseases, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China. FAU - Wen, Song AU - Wen S AD - Department of Endocrinology and Metabolic Diseases, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China. FAU - Du, Anqing AU - Du A AD - Department of Stomatology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China. FAU - Diao, Jianjun AU - Diao J AD - Department of Emergency, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China. LA - eng PT - Journal Article PL - China TA - Ann Palliat Med JT - Annals of palliative medicine JID - 101585484 RN - 0 (Blood Glucose) RN - 0LVT1QZ0BA (Homocysteine) SB - IM MH - Blood Glucose MH - Cross-Sectional Studies MH - *Diabetes Mellitus, Type 2 MH - Homocysteine MH - Humans MH - *Insulin Resistance MH - *Islets of Langerhans OTO - NOTNLM OT - Homeostasis Model Assessment-beta (HOMA-beta) OT - Type 2 diabetes mellitus (T2DM) OT - homocysteine OT - pancreatic islet beta-cells function EDAT- 2021/08/07 06:00 MHDA- 2021/08/10 06:00 CRDT- 2021/08/06 05:27 PHST- 2021/06/07 00:00 [received] PHST- 2021/07/13 00:00 [accepted] PHST- 2021/08/06 05:27 [entrez] PHST- 2021/08/07 06:00 [pubmed] PHST- 2021/08/10 06:00 [medline] AID - 10.21037/apm-21-1671 [doi] PST - ppublish SO - Ann Palliat Med. 2021 Jul;10(7):8169-8179. doi: 10.21037/apm-21-1671.