• Fawzia A Saafan, Ayman Z Elsamanoudy, Dalia Shaalan, Nanees Zeidan, and Mohammad A Gaballah.
• Department of Dermatology, Andrology and STDs, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
• Am. J. Med. Sci. 2021 Oct 1; 362 (4): 375-380.

BackgroundAndrogenetic alopecia (AGA) is associated with a risk of coronary heart disease (CHD), although the causes underlying this association are not clear. Serum homocysteine (SH) is a known risk factor for CHD, and methylene tetrahydrofolate reductase enzyme (MTHFR) plays a crucial role in the remethylation of homocysteine to methionine. The polymorphism C677T that affects the catalytic domain of the MTHFR protein leads to a high levels of SH. Our hypothesis was that this polymorphism and SH level are risk factors for CHD in patients with AGA.Materials And MethodsA total of 106 patients with AGA and 100 well-matched healthy controls were enrolled in the study. SH levels were estimated. DNA was extracted and polymerase chain reaction amplification, followed by restriction enzyme digestion for MTHFR (C677T) gene, was conducted.ResultsSH levels were significantly higher in the patient group and highest in those with the TT genotype. The mutant T allele was associated with hyperhomocysteinemia and an increased risk of CHD in patients with AGA.ConclusionsAGA is associated with a higher risk of developing CHD due to the associated higher level of SH that, in turn, depends on and is correlated with mutant MTHFR genotypes. Cardiac evaluation and follow-up of patients with AGA is recommended for early detection and treatment of CHD to avoid an overall detrimental course.Copyright © 2021 Southern Society for Clinical Investigation. Published by Elsevier Inc. All rights reserved.

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