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Objective: Aim: The main aim of the present paper is to investigate allele frequencies of rs1799983 polymorphism eNOS genes and to determine association between rs1799983 polymorphism of eNOS gene and essential hypertension in Iraqi hypertensive patients., Patients and Methods: Materials and Methods: Data obtained at the Al-Diwaniyah teaching hospital in Iraq by researchers from the Department of Pharmacology and Therapeutics in the College of Medicine at University of Al-Qadisiyah from July 2022 to July 2023. All participants (aged 20 to 70) had been taking valsartan 160 mg once day for essential hypertension for at least two weeks before to the study. There were a total of 90 participants, 37 males and 53 women. Initial investigations of hypertension have indicated that the angiotensinogen gene has a substantial impact in susceptibility to essential hypertension through observational cross sectional descriptive single center study., Results: Results: Indicate, in patients with essential hypertension, that the "AGT gene A>G (rs699) and C>T(rs5051)" have high angiotensinogen level, and there is no signif i cant association between these two (rs699, rs5051) and responsiveness to valsartan (P >0.05)., Conclusion: Conclusions: Result showed the most common allele for rs699 was G allele (67%) while the most frequent genotype was AG (49%) and regarding rs5051 the most frequent allele was C (54%) while the most frequent genotype was CT (46%). In this study we demonstrate the lack of signif i cant association between two these polymorphisms and clinical response to valsartan (P >0.05).

Objective: Aim: To demonstrate the genetic variant of CYP11B2 Gen rs1799998 and rs4539 and their ef f ect on systolic and diastolic blood pressure in Iraqi patient with essential hypertension in Aldiwania province., Patients and Methods: Materials and Methods: This is an observational cross sectional descriptive single centre study for hypertensive patients at Al-Diwaniyah province, Iraq which is diagnosed according to 2020 ISH. All candidate patients were diagnosed and recruited by specialist caregiving physician/ cardiologist. There was a total of 90 participants, 37 males and 53 women. Aldosterone and renine levels in the plasma were determined from blood samples given voluntarily by patients undergoing genetic testing., Results: Results: Regarding rs4539 the most frequent allele was T (112, 62%) while the most frequent genotype was TC (54, 60%). Regarding rs1799998 the most frequent allele was G (97, 54%) while the most frequent genotype was AG (49, 54%)., Conclusion: Conclusions: There was no signif i cant relationship between rs1799998 (A344>G) and rs4539 (T2718C) with systolic and diastolic blood pressure in Iraqi patient with essential hypertension.