Fam M.S.Hassanein S.I.Rahman M.F.A.Assal R.A.Hanafi R.S.Gad M.Z.Clinical Biochemistry UnitFaculty of Pharmacy and BiotechnologyGerman University in CairoFifth SettlementCairo11432Egypt; Biochemistry DepartmentFaculty of PharmacyOctober University for Modern Sciences and Arts6th of OctoberGiza 12566Egypt; The Molecular Pathology Research GroupDepartment of Pharmacology and ToxicologyFaculty of Pharmacy and BiotechnologyGerman University in CairoFifth SettlementCairo11432Egypt; Pharmaceutical Chemistry DepartmentFaculty of Pharmacy and BiotechnologyGerman University in CairoFifth SettlementCairo11432Egypt2020-01-092020-01-09201984212https://doi.org/10.1139/cjpp-2019-0258PubMed ID 31398293https://t.ly/0E3LgScopusCardiovascular diseases remain a major public health burden worldwide. It was reported that vitamin D protects the cardiovascular system through several mechanisms mainly by hindering atherosclerosis development. Genetic variations in vitamin D metabolic pathway were found to affect vitamin D levels. This study aimed at investigating the association between single nucleotide polymorphisms in genes involved in vitamin D metabolism, CYP27B and CYP24A1; 25-hydroxyvitamin D (25(OH)D) levels; and susceptibility to acute coronary syndrome (ACS). One hundred and eighty-five patients and 138 healthy controls were recruited. CYP24A1 rs2762939 was genotyped using fast real-time PCR, while CYP24A1 rs4809960 and CYP27B1 rs703842 were genotyped using polymerase chain reaction followed by restriction fragment length polymorphism (PCR�RFLP). 25(OH)D3 and 25(OH)D2 levels were measured using ultra-performance liquid chromatography tandem mass spectrum. Vitamin D level was significantly lower in patients than controls (p < 0.05). The GG genotype of rs2762939 was significantly associated with the risk of ACS development, but not correlated to the vitamin D level. rs4809960 and rs703842 genetic variations were not associated with ACS nor with 25(OH)D level. The genetic variant rs2762939 of CYP24A1 is remarkably associated with ACS. Meanwhile, the variants rs4809960 and rs703842 are not associated with ACS incidence. � 2019, Canadian Science Publishing. All rights reserved.EnglishOctober University for Modern Sciences and Artsجامعة أكتوبر للعلوم الحديثة والآدابUniversity of Modern Sciences and ArtsMSA University25(OH)DCYP24A1CYP27B1Myocardial infarctionSingle nucleotide polymorphism25 hydroxyvitamin Dcalcidiol 1 monooxygenasecolecalciferol 24 hydroxylasecytochromecytochrome p450 27B1unclassified drugacute coronary syndromeadultArticleatherosclerosiscontrolled studyfemalegenetic susceptibilitygenetic variabilitygenetic variationgenotyping techniquehumanincidencemajor clinical studymalemiddle agedpolymerase chain reactionpriority journalreal time polymerase chain reactionrestriction fragment length polymorphismsingle nucleotide polymorphismultra performance liquid chromatographyvitamin blood levelvitamin D metabolismContribution of cyp27b1 and cyp24a1 genetic variations to the incidence of acute coronary syndrome and to vitamin d serum levelArticlehttps://doi.org/10.1139/cjpp-2019-0258PubMed ID 31398293