title: Analysis of genetic polymorphisms related to thrombosis and other risk factors in patients with retinal vein occlusion.
abstract: The purpose of this study was to investigate the role of genetic polymorphisms associated with venous and arterial thrombosis in patients with retinal vein occlusion (RVO). One-hundred and two consecutive patients with RVO were examined for factor V G1691A and factor II G20210A, methylenetetrahydrofolate reductase (MTHFR) C677T and apolipoprotein E4 by amplification of specific DNA fragments and restriction analysis. The risks exerted by these polymorphisms and by the conventional risk factors of RVO were evaluated by comparing their frequencies among patients and controls and by estimating the respective odds ratios. We found that the prevalences of the factor V G1691A, factor II G20210A, and apolipoprotein E4 polymorphisms were similar in the study and control groups. Logistic regression analysis involving the parameters for which significant differences were detected disclosed an odds ratio of 1.9 for MTHFR C677T homozygosity (95% confidence interval 0.95-3.81), an odds ratio of 2.12 for hypertension (95% confidence interval 1.16-3.73) and an odds ratio of 3.25 for a family history of stroke (95% confidence interval 1.07-9.51). Our data suggests that homozygosity for the MTHFR C677T polymorphism is a risk factor of RVO in addition to arterial hypertension and a family history of stroke.
authors.affiliation: Institute of Thrombosis and Hemostasis, Department of Hematology, Sheba Medical Center, Tel Hashomer, Israel.
authors.forename: O
authors.initials: O
authors.lastname: Salomon
authors.forename: J
authors.initials: J
authors.lastname: Moisseiev
authors.forename: N
authors.initials: N
authors.lastname: Rosenberg
authors.forename: O
authors.initials: O
authors.lastname: Vidne
authors.forename: I
authors.initials: I
authors.lastname: Yassur
authors.forename: A
authors.initials: A
authors.lastname: Zivelin
authors.forename: G
authors.initials: G
authors.lastname: Treister
authors.forename: D M
authors.initials: DM
authors.lastname: Steinberg
authors.forename: U
authors.initials: U
authors.lastname: Seligsohn
mesh_terms: D000328:Adult; D000368:Aged; D053327:Apolipoprotein E4; D001057:Apolipoproteins E / Q000235:genetics*; D005165:Factor V / Q000235:genetics*; D005260:Female; D006720:Homozygote; D006801:Humans; D008297:Male; D042965:Methylenetetrahydrofolate Reductase (NADPH2); D008875:Middle Aged; D000587:Oxidoreductases Acting on CH-NH Group Donors / Q000235:genetics*; D011110:Polymorphism, Genetic; D011516:Prothrombin / Q000235:genetics*; D012044:Regression Analysis; D012170:Retinal Vein Occlusion / Q000235:genetics*; D012307:Risk Factors
chemical_list: D053327:Apolipoprotein E4; D001057:Apolipoproteins E; D005165:Factor V; D011516:Prothrombin; D000587:Oxidoreductases Acting on CH-NH Group Donors; D042965:Methylenetetrahydrofolate Reductase (NADPH2)