One of the most serious consequences of obesity is Type 2 Diabetes mellitus. It has been linked to a chronic systemic inflammatory condition that plays a central role in insulin resistance associated with Type 2 Diabetes Mellitus. This study aimed to evaluate serum nesfatin-1 levels in patients with type 2 diabetes mellitus and to interpret these levels in relation to obesity, as measured by body mass index, and Homeostatic Model Assessment for Insulin Resistance). A total of 60 patients and 30 controls were recruited for this research. We assessed BMI, HOMA-IR, insulin levels, fasting plasma glucose. HbA1c, and serum nesfatin-1 concentrations for all participants. The serum insulin level (23.19 vs. 13.20 µIU/ml) and HOMA (13.50 vs. 2.12) were significantly elevated in patients compared to controls. Conversely, the nesfatin-1 level was notably lower in patients (55.12 ± 7.1 ng/ml vs. 79.03 ± 7.1 ng/ml). Receiver Operating Characteristic (ROC) analysis indicated significant variations in the following descending order: FPG (0.959), serum insulin (0.692), and serum nesfatin-1 (0.869). Furthermore, a significant negative correlation was observed between nesfatin-1 and obesity. When a multiple linear regression model was applied to examine the independent effects of BMI and HOMA, a significant negative correlation was found with nesfatin-1 levels. Additionally, the odds ratio (OR=33.3) indicated that the likelihood of having a high HOMA among patients was significantly increased with lower nesfatin-1 levels. In conclusion, lower nesfatin-1 levels are associated with a heightened risk of T2DM, particularly among obese individuals with diabetes.
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