• Mehmet Zorlu, Abdüsselam Şekerci, Muhammed Tunç, Eray Metin Güler, Bedia Gülen, Cumali Karatoprak, Muharrem Kıskaç, and Mustafa Çakırca.
• Department of Internal Medicine, Faculty of Medicine, Bezmialem Vakıf University, İstanbul, Turkey.
• Turk J Med Sci. 2022 Aug 1; 52 (4): 119712061197-1206.

BackgroundVitamin D, adropin, proinflammatory cytokines, and oxidative stress closely related with metabolic homeostasis and endothelial dysfunction. The aim of the present study is to investigate how vitamin D levels affect serum adropin, IL-1ß, IL-6, and oxidative stress.MethodsA total of 77 female subjects were divided into 3 groups according to vitamin D levels. Biochemical parameters, adropin, IL-1ß, IL-6, oxidative stress markers were studied in these groups, and the results were compared statistically.ResultsSerum adropin, IL-1ß, IL-6, total oxidant status (TOS) and total antioxidant status (TAS) and oxidative stress index (OSI) levels differed significantly between the vitamin D groups (p < 0.05). A significant positive correlation was detected between vitamin D, and adropin and TAS (r = 0.807; p < 0.001, r = 0.814; p < 0.001, respectively). A significant negative correlation was detected between vitamin D, and IL-1ß, IL-6, TOS, OSI (r = -0.725; p < 0.001, r = -0.720; p < 0.001, r = -0.238; p = 0.037, r = -0.705; p < 0.001, respectively).DiscussionVitamin D could show its effects through vitamin D receptors on tissues or on the ENHO gene in adropin secreting tissues via direct or indirect mechanisms. Proinflammatory cytokines, oxidative stress, and adropin targeted studies could contribute to the prevention and treatment of diseases associated with vitamin D deficiency in future.

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