Abstract:
BACKGROUND:Familial hypercholesterolemia (FH) is an autosomal dominant condition characterized by abnormal levels of low-density lipoprotein (LDL) in the blood. FH is a risk factor for atherosclerosis and cardiovascular disease. The relationship between the paraoxonase 1 (PON1) gene, atherosclerosis and coronary artery disease has not been studied in Saudi patients. OBJECTIVE:To investigate the genetic associations of the Q192R polymorphism in the PON1 gene with FH in Saudi patients. DESIGN:Case-control study. SETTING:Tertiary care center, Riyadh. METHODS:Two hundred Saudi patients were enrolled in this study, including 100 patients with FH and 100 healthy controls, during the period from January 2012 to March 2013. Serum was separated from coagulated blood (3 mL) and used for analysis of lipid profiles. Genomic DNA was isolated from anticoagulant-treated blood (2 mL). Genotyping for the Q192R polymorphism was performed by polymerase chain reaction-restriction fragment length polymorphism analysis, followed by 3% agarose gel electrophoresis. MAIN OUTCOME MEASURE:The strength of association between the Q192R polymorphism and FH in the Saudi population. RESULTS:We confirmed that QR versus QQ (odds ratio [OR]: 1.55; 95% confidence interval [CI]: 1.05-3.43; P=.03), QR+RR versus QQ (OR: 1.98; 95% CI: 1.13-3.49; P=.01), and R versus Q (OR: 1.68; 95% CI: 1.09- 2.59; P=.01) in the Q192R polymorphism were associated with FH in the Saudi population. CONCLUSION:In conclusion, the Q192R polymorphism in the PON1 gene is associated with FH in the Saudi population. Our results confirmed that the R allele, QR, and dominant model genotypes were associated with FH. LIMITATION:Only a single variant (Q192R) was analyzed, and the medical and family histories of the patients were not known.
journal_name
Ann Saudi Medjournal_title
Annals of Saudi medicineauthors
Alharbi KK,Alnbaheen MS,Alharbi FK,Hasanato RM,Khan IAdoi
10.5144/0256-4947.2017.425subject
Has Abstractpub_date
2017-11-01 00:00:00pages
425-432issue
6eissn
0256-4947issn
0975-4466journal_volume
37pub_type
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