PMID- 37274647 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230606 IS - 2405-8440 (Print) IS - 2405-8440 (Electronic) IS - 2405-8440 (Linking) VI - 9 IP - 6 DP - 2023 Jun TI - Homocysteine levels, H-Hypertension, and the MTHFR C677T genotypes: A complex interaction. PG - e16444 LID - 10.1016/j.heliyon.2023.e16444 [doi] LID - e16444 AB - BACKGROUND AND OBJECTIVES: High homocysteine levels are associated with increased risk of hypertension and stroke. Homocysteine is metabolized by the methylenetetrahydrofolate reductase (MTHFR). We aimed to investigate the levels of homocysteine and their association with hypertension, stroke, and antihypertensive medication usage in patients with different MTHFR C677T genotypes. METHODS AND RESULTS: Genotype frequency of MTHFR polymorphism was performed, and plasma homocysteine levels were measured in 2,640 adult Lebanese patients. Hypertension, history of stroke, and list of medications were documented, among other clinical and demographic parameters. The TT mutant genotype and the T mutant allele of MTHFR were more prevalent in hyperhomocysteinemia (HHcy) and H-hypertensive (H-HTN, defined as hypertension with hyperhomocysteinemia) patients when compared to non-HHcy subjects and non H-HTN patients respectively. Homocysteine levels were significantly higher in hypertensive patients specifically among those on diuretics. A higher level of homocysteine was found in hypertensive patients with the MTHFR T allele compared to patients carrying the C allele. Among the T allele carriers, the average plasma homocysteine level was 13.3 +/- 0.193 mumol/L for hypertensive subjects compared to 11.9 +/- 0.173 mumol/L (non-hypertensives). Furthermore, homocysteine levels significantly correlated with stroke risk in patients with the T alleles. CONCLUSIONS: We found an association of homocysteine with hypertension, hypertensive medication, and stroke risk among patients with the MTHFR T allele and the TT genotype. The association of diuretics therapy with higher homocysteine levels calls for routine measurements and therapeutic control of homocysteine in patients on diuretic, to improve health-related outcomes. CI - (c) 2023 The Authors. FAU - Al Hageh, Cynthia AU - Al Hageh C AD - College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates. FAU - Alefishat, Eman AU - Alefishat E AD - College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates. AD - Department Biopharmaceutics and Clinical Pharmacy, Faculty of Pharmacy, The University of Jordan, Amman 11942, Jordan. AD - Center for Biotechnology, Khalifa University, Abu Dhabi 127788, United Arab Emirates. FAU - Ghassibe-Sabbagh, Michella AU - Ghassibe-Sabbagh M AD - School of Arts and Sciences, Lebanese American University, Beirut, Lebanon. FAU - Platt, Daniel E AU - Platt DE AD - Computational Biology Center, IBM TJ Watson Research Centre, Yorktown Hgts, NY, USA. FAU - Hamdan, Hamdan AU - Hamdan H AD - College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates. FAU - Tcheroyan, Raya AU - Tcheroyan R AD - School of Medicine, American University of Beirut, Beirut, Lebanon. FAU - Chammas, Elie AU - Chammas E AD - School of Medicine, Lebanese University, Beirut, Lebanon. FAU - O'Sullivan, Siobhan AU - O'Sullivan S AD - College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates. FAU - Abchee, Antoine AU - Abchee A AD - Sheikh Shakhbout Medical City, Abu Dhabi, United Arab Emirates. FAU - Wang, Binyan AU - Wang B AD - Shenzhen Evergreen Medical Institute, Shenzhen, China. FAU - Xu, Xiping AU - Xu X AD - Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, College of Food Sciences and Nutritional Engineering, China Agricultural University, Beijing, China. FAU - Nader, Moni AU - Nader M AD - College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates. AD - Center for Biotechnology, Khalifa University, Abu Dhabi 127788, United Arab Emirates. FAU - Zalloua, Pierre AU - Zalloua P AD - College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates. AD - Center for Biotechnology, Khalifa University, Abu Dhabi 127788, United Arab Emirates. AD - Harvard T.H. Chan School of Public Health, Boston, MA, USA. LA - eng PT - Journal Article DEP - 20230523 PL - England TA - Heliyon JT - Heliyon JID - 101672560 PMC - PMC10238895 OTO - NOTNLM OT - C677T OT - Diuretics OT - H-hypertension OT - HHcy OT - MTHFR OT - rs1801133 COIS- The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/06/05 13:04 MHDA- 2023/06/05 13:05 PMCR- 2023/05/23 CRDT- 2023/06/05 12:05 PHST- 2022/08/03 00:00 [received] PHST- 2023/04/11 00:00 [revised] PHST- 2023/05/16 00:00 [accepted] PHST- 2023/06/05 13:05 [medline] PHST- 2023/06/05 13:04 [pubmed] PHST- 2023/06/05 12:05 [entrez] PHST- 2023/05/23 00:00 [pmc-release] AID - S2405-8440(23)03651-4 [pii] AID - e16444 [pii] AID - 10.1016/j.heliyon.2023.e16444 [doi] PST - epublish SO - Heliyon. 2023 May 23;9(6):e16444. doi: 10.1016/j.heliyon.2023.e16444. eCollection 2023 Jun.