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en Metformin Increased Histone Deacetylases 1, 3, and 8 Expressions as Epigenetic Regulators in Type 2 Diabetic Patients زیست شناسی ملکولی Molecular Biology مقالات اصلی Original Article <div style="text-align: justify;">Background: Type 2 diabetes is a complex disease resulting from interactions between genetic, epigenetic, and environmental factors. Histone deacetylases (HDAC) are essential epigenetic-regulatory enzymes that affect gene expression and, through metabolic homeostasis and beta-cell function regulation, play significant roles in the development and treatment of diabetes. In this study, we specifically focused on the effect of metformin, the first-line therapy for type 2 diabetes on the expression of class I HDAC genes. Methods: A total of 60 patients were equally allocated into two groups: those receiving metformin treatment and those without treatment. Also, 60 subjects with normal glucose tolerance were divided into two groups: non-obese (n=30) and obese individuals (n=30). All biochemical and clinical factors were estimated using standard methods, and RT-qPCR was used to quantify the expression levels of the candidate genes in peripheral blood mononuclear cells of different groups. Results: The metformin treatment group exhibited increased expression of HDAC1, HDAC3, and HDAC8 in comparison to the non-treatment group. Furthermore, the expression levels of HDAC 1, 2, and 3 were higher in the obese group than the non-obese. Interestingly, evaluation of biochemical and clinical factors revealed significant association between the expression of class I HDAC genes and several diabetes-related risk factors. Conclusions: The current findings suggest that HDAC1, 3, and 8 genes expression are affected by metformin, and obesity has a substantial ability to increase the risk of diabetes. However, changes in HDAC expression may represent potential biomarkers and therapeutic targets for future clinical studies in diabetes, particularly in exploring combination therapies involving histone deacetylase inhibitors and metformin.</div> Body Mass Index, Diabetes Mellitus Type 2, Gene Expression, Histone Deacetylases, Metformin. 85 94 http://rbmb.net/browse.php?a_code=A-10-1828-1&slc_lang=en&sid=1 Amin Izadi 100319475328460022040 100319475328460022040 No Department of Biology, Faculty of Basic Sciences, Gonbad Kavous University, Gonbad Kavous, Golestan, Iran. Azam Zarourati 100319475328460022041 100319475328460022041 No Department of Biology, Faculty of Basic Sciences, Gonbad Kavous University, Gonbad Kavous, Golestan, Iran. Sohrab Boozarpour so.boozarpour@gmail.com 100319475328460022042 100319475328460022042 Yes Department of Biology, Faculty of Basic Sciences, Gonbad Kavous University, Gonbad Kavous, Golestan, Iran. Mohsen Ghalandar 100319475328460022043 100319475328460022043 No Department of Mathematics and Statistics, Faculty of Basic Sciences, Gonbad Kavous University, Gonbad Kavous, Golestan, Iran. Mina Lashkarboloki 100319475328460022044 100319475328460022044 No Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran. Madjid Momeni Moghaddam 100319475328460022045 100319475328460022045 No Department of Biology, Faculty of Sciences, Hakim Sabzevari University, Sabzevar, Iran. Masoud Fahimi 100319475328460022046 100319475328460022046 No Dr. Fahimi Medical Laboratory, Gonbad Kavous, Golestan, Iran.