Complex Association of Protein C Gene Promoter Polymorphism With Circulating Protein C Levels and Thrombotic Risk

Autor: Jean Amiral, Emmanuel Arnaud, Jean-Noël Fiessinger, Sophie Gandrille, Martine Aiach, Joseph Emmerich, Louis Guize, Viviane Nicaud, Martine Alhenc-Gelas
Rok vydání: 1999
Předmět:
Zdroj: Arteriosclerosis, Thrombosis, and Vascular Biology. 19:1573-1576
ISSN: 1524-4636
1079-5642
DOI: 10.1161/01.atv.19.6.1573
Popis: Abstract —The allele and haplotype frequency of the –1654 C/T and –1641 A/G protein C (PC) gene promoter polymorphisms was determined and analyzed according to circulating PC concentrations in 394 healthy subjects aged 20 to 60 years. The CG haplotype was associated with a lower PC concentration in both homozygous and heterozygous subjects compared with noncarriers. The TA allele had the reverse effect, but only in homozygotes. The distribution of the CG and TA alleles was significantly different in 242 patients, aged 17 to 60 years, with venous thromboembolism. The CG allele increased the risk of thrombosis, with an OR of 1.39 (95% confidence interval (CI), 1.04 to 1.87). The TA allele was protective in subjects aged TA was also significantly associated with older age at the first thrombosis. This study confirms the link between the PC gene promoter and circulating PC levels, and suggests a complex effect on the risk of thrombosis.
Databáze: OpenAIRE