Hasanain MohammedHuthaifa AbdlWhab, Araz Al-Saffar, Osama Abbas Mahdi, Rafid Badri Alameri
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引用次数: 0
Abstract
Background: Type 2 diabetes mellitus (T2DM) is a multifaceted metabolic disorder. Over the past decade, the potential role of Growth Hormone (GH) and Insulin-like Growth Factor-1 (IGF-1) in the pathogenesis and progression of T2DM has garnered scientific interest. These hormones, while interrelated, exert differential effects on glucose homeostasis; GH elevates blood glucose levels, whereas IGF-1 sustains insulin secretion and augments insulin sensitivity.
Objective: The study aimed to investigate the impact of insulin resistance and glycaemic control on IGF-1 levels and to assess other risk factors influencing IGF-1 in T2DM.
Methods: A cross-sectional study was conducted at the National Diabetes Centre, Baghdad, Iraq, from May 2020 to May 2021. Sixty patients with T2DM were evaluated for fasting plasma glucose (FPG), GH, IGF-1, HbA1c, HOMA-IR, HOMA-B, and anthropometric measures following a comprehensive history and physical examination, focusing on any variables that could influence their metabolic profile. Patients with Type 1 diabetes mellitus, thyroid disease, pituitary disease, chronic kidney disease, hepatic disease, and pregnancy were excluded from the study.
Results: Patients with poorly controlled diabetes (HbA1c > 8) exhibited significantly elevated IGF-1 levels compared to those with HbA1c < 8 (166 vs. 134, P = 0.016). The mean IGF-1 was significantly lower in patients with insulin resistance (IR) compared to those without IR (143 vs. 192, P = 0.001), with a significant negative correlation with Body Mass Index (BMI) and a significant positive correlation with HbA1c and Quantitative Insulin Sensitivity Index (QUICKI). Elevated IGF-1 levels were observed with increasing age, duration of T2DM, higher HbA1c, higher QUICKI, and lower BMI. No significant difference was found in IGF-1 values with regards to HOMA-B, fasting insulin, and waist-hip ratio.
Conclusion: Patients with poorly controlled T2DM exhibit higher IGF-1 levels, while those with obesity and high insulin resistance demonstrate lower IGF-1 levels. Further prospective studies are warranted to evaluate the potential of using IGF-1 to reduce insulin resistance and improve metabolic and glycaemic measures in individuals with T2DM and obesity or insulin resistance.
期刊介绍:
Clinical Diabetes and Endocrinology is an open access journal publishing within the field of diabetes and endocrine disease. The journal aims to provide a widely available resource for people working within the field of diabetes and endocrinology, in order to improve the care of people affected by these conditions. The audience includes, but is not limited to, physicians, researchers, nurses, nutritionists, pharmacists, podiatrists, psychologists, epidemiologists, exercise physiologists and health care researchers. Research articles include patient-based research (clinical trials, clinical studies, and others), translational research (translation of basic science to clinical practice, translation of clinical practice to policy and others), as well as epidemiology and health care research. Clinical articles include case reports, case seminars, consensus statements, clinical practice guidelines and evidence-based medicine. Only articles considered to contribute new knowledge to the field will be considered for publication.