• Mervat El Shahat El Wakeel, Inass Hassan Ahmad, Marwa Abdelmonim Mohammed, Sally Mohamed Osama Ali, Marwa Khairy Abd El Wahab, and Walaa Mohamed Shipl.
• Department of Endocrinology and Metabolism, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt.
• J Res Med Sci. 2022 Jan 1; 27: 13.

BackgroundType 2 diabetes mellitus (T2DM) is a growing health problem in Egypt, with a significant impact on morbidity and mortality. Measurement of the carotid Intima-media thickness (CIMT) allows early detection of atherosclerotic blood vessel diseases. Apelin is an adipose tissue-derived hormone that may be associated with insulin resistance (IR). This study aimed to assess the level of serum apelin in patients with T2DM and its relation to IR and CIMT.Materials And MethodsA case-control study was conducted on 60 patients with T2DM and 30 healthy controls. T2DM was diagnosed based on American Diabetes Association criteria. The study was carried out at Al-Zahraa University Hospital, Cairo, Egypt, through the period from June to December 2019. The laboratory investigations included serum apelin and blood glucose hemostasis markers. CIMT was assessed using B-mode ultrasonography.ResultsPatients' group had a statistically significant higher apelin level than healthy controls (407.96 ± 291.07 versus 83.32 ± 10.55 ng/dL, P < 0.001). The correlation analysis showed that the serum apelin level correlated positively with glycemic indices, body weight, and waist circumference (P < 0.05). At cutoff value of >96 ng/dL, the serum apelin exhibited a sensitivity of 98.3% and specificity of 96.7%, positive predictive value of 98.1%, and negative predictive value of 96.5%, with a diagnostic accuracy of 95.1%. Serum apelin correlated positively with CIMT (r = 0.296, P = 0.022). Logistic regression analysis showed that systolic and diastolic blood pressures, Homeostasis Model Assessment of IR, and CIMT were independent predictors of serum apelin.ConclusionSerum apelin may be correlated with the degree of carotid atherosclerosis and hence can be used as a prognostic biomarker.Copyright: © 2022 Journal of Research in Medical Sciences.

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