Factor XI gene mutations in factor XI deficient patients of the Czech Republic

Giancarlo Castaman, Sofia H. Giacomelli, David Habart, Rosanna Asselta, Stefano Duga, Francesco Rodeghiero

Research output: Contribution to journalArticlepeer-review


Factor XI (FXI) deficiency is an autosomal inherited coagulation disorder characterized by bleeding symptoms mainly associated with injury or surgery. Although most of the FXI gene mutations in Ashkenazi Jews are represented by the Glu117stop or Phe283Leu mutations, considerable genetic heterogeneity has been reported in other populations. We report here the genotypic characterization of four families with severe inherited FXI deficiency from the Czech Republic. Seven different gene mutations (three novel) were identified, thus, excluding the existence of a major founder effect in this population. Interestingly, both Glu117stop and Phe283Leu were detected once, further demonstrating the occurrence of these mutations also outside the Jewish populations. In conclusion, we confirm that FXI deficiency in non-Jewish populations is because of different gene mutations; however, the presence of the Glu117stop and Phe283Leu mutations suggests that genetic testing in FXI-deficient patients can start with these two point mutations.

Original languageEnglish
Pages (from-to)916-919
Number of pages4
JournalAmerican Journal of Hematology
Issue number12
Publication statusPublished - Dec 2008

ASJC Scopus subject areas

  • Hematology


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