| Titre : | Relation of three genetic traits to venous thrombosis in an African-American population. (1998) |
| Auteurs : | A. DILLEY ; H. AUSTIN ; B. EVATT ; W.C. HOOPER ; C. LALLY ; P. RAWLINS ; M.J.A. RIBEIRO ; V. SILVA ; N.K. WENGER ; Emory University School of Medicine. Atlanta GA. USA ; Grady Memorial Hospital. Atlanta GA. USA ; National Center for Infectious Diseases. Centers for Disease Control and Prevention. Public Health Service. Us Department of Health and Human Services. Atlanta GA. USA ; The Rollins School of Public Health. Emory University. Atlanta GA. USA |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 147, n° 1, 1998) |
| Pagination : | 30-35 |
| Langues: | Anglais |
| Mots-clés : | Enzyme ; Thrombose ; Veine ; Homme ; Epidémiologie ; Facteur risque ; Appareil circulatoire [pathologie] ; Vaisseau sanguin [pathologie] ; Etats Unis ; Amérique du Nord ; Amérique ; Race ; Géorgie |
| Résumé : | [BDSP. Notice produite par INIST p7rR0x6Y. Diffusion soumise à autorisation]. A mutation in the Factor V gene (Factor V Leiden), a variant in the 5,10-methylenetetrahydrofolate reductase gene (MTHFR), and an insertion/deletion polymorphism of the angiotensin I-converting enzyme gene (ACE) may be related to abnormal blood clotting. The authors examined the associations between these genetic traits and venous thrombosis among African Americans. This study comprised 93 patients with venous thrombosis and 185 control subjects attending clinics at an urban, public hospital in Atlanta, Georgia, in 1995-1996. Subjects'DNA was extracted from blood and assayed for these genetic traits. Odds ratios were obtained from logistic regression and used as a measure of association between each genetic trait and venous thrombosis. Factor V Leiden was unrelated to venous thrombosis, but the mutation was too rare among our Africian-American subjects to evaluate adequately its relation to venous thrombosis. The homozygous and heterozygous genotypes for the V allele of the MTHFR gene were unrelated to venous thrombosis (odds ratio=0.9,95% confidence interval 0.5-1.8). Subjects with the deletion/deletion ACE polymorphism experienced a moderate increase in venous thrombosis risk compared with persons with the other genotypes (odds ratio=1.5,95% confidence interval 0.9-2.6). However, women with this ACE genotype experienced no increased risk (odds ratio=0.9,95% confidence interval 0.5-1.9), whereas men with this genotype had nearly three times the risk (odds ratio=2. (...) |
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