Genetic modulation of coagulation factor VII plasma levels: Contribution of different polymorphisms and gender-related effects

Augusto Di Castelnuovo, Andria D'Orazio, Concetto Amore, Anna Falanga, Cornelis Kluft, Maria Benedetta Donati, Licia Lacoviello

Research output: Contribution to journalArticlepeer-review

Abstract

We studied the relationships among different polymorphisms of FVII gene in determining FVII levels, in a sample of 335 male and female Italian volunteers. The hypervariable region 4 (HVR4), the promoter decanucleotide insertion (-323 0/10 bp) and the R353Q polymorphisms of FVII gene were evaluated. The association of HVR4 or -323 0/10 bp polymorphism with plasma FVII levels differed between gender (Interaction term: p = 0.02 and p = 0.03, respectively), showing stronger effect in males than in females. In males, the R353Q and the HVR4 polymorphisms showed an incremental influence on FVII variance (F = 8.9, p <0.001 and F = 4.4, p = 0.01, respectively). Moreover, the effects of Q and 10 bp alleles on the reduction of FVII activity levels were significantly potentiated by the presence of H7 allele of HVR4 (Interaction term p = 0.03 for R353Q*HVR4 and p = 0.03 for -323 0/10 bp*HVR4). In conclusion, the effect of FVII polymorphisms on FVII levels was gender dependent and derived from a complex interaction among them. HVR4 polymorphism seems to add an independent, albeit small, contribution to the regulation of FVII plasma levels.

Original languageEnglish
Pages (from-to)592-597
Number of pages6
JournalThrombosis and Haemostasis
Volume80
Issue number4
Publication statusPublished - Oct 1998

ASJC Scopus subject areas

  • Hematology

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