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El-Sayed K, Youssef AR, Hay NMA, Osman AM. LDL-receptor gene polymorphism as a predictor of coronary artery disease: an Egyptian pilot study: relation to lipid profile and angiographic findings. Egypt Heart J 2024; 76:1. [PMID: 38165587 PMCID: PMC10761650 DOI: 10.1186/s43044-023-00430-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 12/15/2023] [Indexed: 01/04/2024] Open
Abstract
BACKGROUND Coronary artery disease (CAD) is the main cause of death in Egypt. Many LDL-R gene locus single nucleotide polymorphisms (SNP) are found to be associated with the risk of CAD. This research aimed to assess the allelic and genotypic frequencies of rs1122608 SNP and their association with the extent of vessel affection and lipid profile in a population of Egyptians.100 CAD patients and 100 healthy controls of Egyptians were included. PCR-RFLP was used to genotype rs1122608 SNPs. RESULTS Significantly higher proportion of 'T' allele among patient (risk allele). This association is of low strength (ϕ lies between 0.1 and 0.3). A participant with 'T' allele has 1.95 times higher odds to exhibit CAD versus a participant with 'G' allele. Significantly higher proportion of 'T/T' genotype among cases versus control (risk genotype). This association is of low strength (Cramer's V lies between 0.1 and 0.3). A participant with 'T/T' genotype has 4.5 times higher odds to exhibit CAD versus a participant with 'G/G'. Gensini score showed no significant association with rs1122608 genotypes (p = 0.863). CONCLUSIONS The mutant GT and TT genotypes and minor T allele of rs1122608 were positively correlated with CAD and considered as independent risk factors for CAD.
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Affiliation(s)
- Kefaya El-Sayed
- Department of Clinical Pathology, Faculty of Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Amany R Youssef
- Department of Clinical Pathology, Faculty of Medicine, Mansoura University, Mansoura, 35516, Egypt.
| | | | - Adel M Osman
- Cardiology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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Sia CH, Ko J, Zheng H, Ho AFW, Foo D, Foo LL, Lim PZY, Liew BW, Chai P, Yeo TC, Tan HC, Chua T, Chan MYY, Tan JWC, Bulluck H, Hausenloy DJ. Association between smoking status and outcomes in myocardial infarction patients undergoing percutaneous coronary intervention. Sci Rep 2021; 11:6466. [PMID: 33742073 PMCID: PMC7979717 DOI: 10.1038/s41598-021-86003-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/05/2021] [Indexed: 12/25/2022] Open
Abstract
Smoking is one of the leading risk factors for cardiovascular diseases, including ischemic heart disease and hypertension. However, in acute myocardial infarction (AMI) patients, smoking has been associated with better clinical outcomes, a phenomenon termed the “smoker’s paradox.” Given the known detrimental effects of smoking on the cardiovascular system, it has been proposed that the beneficial effect of smoking on outcomes is due to age differences between smokers and non-smokers and is therefore a smoker’s pseudoparadox. The aim of this study was to evaluate the association between smoking status and clinical outcomes in ST-segment elevation (STEMI) and non-STEMI (NSTEMI) patients treated by percutaneous coronary intervention (PCI), using a national multi-ethnic Asian registry. In unadjusted analyses, current smokers had better clinical outcomes following STEMI and NSTEMI. However, after adjusting for age, the protective effect of smoking was lost, confirming a smoker’s pseudoparadox. Interestingly, although current smokers had increased risk for recurrent MI within 1 year after PCI in both STEMI and NSTEMI patients, there was no increase in mortality. In summary, we confirm the existence of a smoker’s pseudoparadox in a multi-ethnic Asian cohort of STEMI and NSTEMI patients and report increased risk of recurrent MI, but not mortality, in smokers.
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Affiliation(s)
- Ching-Hui Sia
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Junsuk Ko
- MD Program, Duke-NUS Medical School, Singapore, Singapore
| | - Huili Zheng
- Health Promotion Board, National Registry of Diseases Office, Singapore, Singapore
| | - Andrew Fu-Wah Ho
- SingHealth Duke-NUS Emergency Medicine Academic Clinical Programme, Singapore, Singapore.,National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore.,Pre-Hospital and Emergency Care Research Centre, Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore
| | - David Foo
- Tan Tock Seng Hospital, Singapore, Singapore
| | - Ling-Li Foo
- Health Promotion Board, National Registry of Diseases Office, Singapore, Singapore
| | | | | | - Ping Chai
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Tiong-Cheng Yeo
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Huay-Cheem Tan
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Terrance Chua
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Mark Yan-Yee Chan
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jack Wei Chieh Tan
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Heerajnarain Bulluck
- Norfolk and Norwich University Hospital, Norwich, UK.,Norwich Medical School, University of East Anglia, Norwich, UK
| | - Derek J Hausenloy
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore. .,National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore. .,Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Level 8, Singapore, 169857, Singapore. .,The Hatter Cardiovascular Institute, University College London, London, UK. .,Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taichung City, Taiwan.
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Genetic analysis of early onset familial coronary artery diseases. ACTA ACUST UNITED AC 2018; 4:e1-e6. [PMID: 30863800 PMCID: PMC6412034 DOI: 10.5114/amsad.2019.83149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 01/14/2019] [Indexed: 12/18/2022]
Abstract
Introduction Coronary artery diseases (CAD) are the most common causes of death. Myocardial infarction (MI) is a complex multifactorial and the most severe type of CAD. Early onset MI in a first-degree relative could be defined as an independent risk factor for CAD. This study was performed to investigate the genetic cause of early onset familial CAD. Material and methods In this study, the genetic cause of familial CAD was investigated in patients with a family history of CAD who underwent angiography before the age of 50 years. The patients did not have any diagnostic criteria for familial hypercholesterolemia, diabetes, or obesity, and also they were not opium or alcohol users. Whole exome sequencing in probands was performed and mutation was confirmed by PCR and Sanger sequencing. Results In our studied population, the c.501G>C (p.K167N) mutation in the OLR1 gene was identified in a family. Mutation was confirmed by PCR and Sanger sequencing in the homozygous state (GG) in patients. Healthy individuals in this family were heterozygous (GC) and homozygous (CC). Conclusions This finding suggests that the OLR1 gene could be a possible cause of early onset familial MI. Considering that parents of all affected individuals had a consanguineous marriage, it is important to perform carrier screening and genetic counseling in this family and their close relatives as a prevention strategy in populations at risk.
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