TY - JOUR
T1 - Varied prevalence of factor V G1691A (Leiden) and prothrombin G20210A single nucleotide polymorphisms among Arabs
AU - Almawi, Wassim Y.
AU - Keleshian, Sose H.
AU - Borgi, Lobna
AU - Fawaz, Naglaa A.
AU - Abboud, Nisreen
AU - Mtiraoui, Nabil
AU - Mahjoub, Touhami
PY - 2005/12
Y1 - 2005/12
N2 - Background: Factor V G1691A (FV-Leiden) and prothrombin (PRT) G20210A single nucleotide polymorphisms (SNPs) are major inherited risk factors of venous thromboembolism. In view of the heterogeneity in their world distribution and lack of sufficient information about their distribution among Arabs, we addressed the prevalence of both SNPs in 4 distinct Arab populations (Lebanon, Tunisia, Bahrain, and Saudi Arabia). Methods: Study subjects comprised 698 Lebanese, 313 Tunisian, 194 Bahraini, and 149 Saudi Arabian healthy subjects; genotyping was done by PCR-RFLP using Mnl I and Hind III for FV-Leiden and PRT G20210A, respectively. Results: The prevalence of the mutant A alleles of FV-Leiden and PRT G20210A were significantly higher among Lebanese (0.0788 and 0.0136) and Tunisians (0.0351 and 0.0128), as compared to Bahraini (0.0155 and 0.0052) and Saudi (0.0101 and 0.000) subjects. Higher frequency of the FV-Leiden G/A and A/A genotypes were seen in Lebanon (13.8 and 1.0%), followed by Tunisia (5.8 and 0.6%), Bahrain (3.1 and 0.0%) and Saudi Arabia ((2.0 and 0.0%). All PRT G20210A positive cases were in the heterozygote (G/A) state, and these comprised 3.6% for Lebanon, 2.6% for Tunisia, 1.0% for Bahrain. The carrier rate of FV-Leiden was significantly higher among Lebanese compared to the other populations (p < 0.001), while the difference in the prevalence of FV-Leiden between the other populations was not statistically different. With the exception of Lebanese-Saudi (p = 0.038), the prevalence of PRT G20210A was similar among the study communities. Furthermore, the overall average genetic differentiation between populations (estimated with the FST) was 0.0022 for FV-Leiden and 0.005 for PRT G20210A. Conclusions: These results further confirm the heterogeneity in FV-Leiden and PRT G20210A distribution among Arabs, and recommend potential institution of prophylactic measures for carriers of either or both SNPs.
AB - Background: Factor V G1691A (FV-Leiden) and prothrombin (PRT) G20210A single nucleotide polymorphisms (SNPs) are major inherited risk factors of venous thromboembolism. In view of the heterogeneity in their world distribution and lack of sufficient information about their distribution among Arabs, we addressed the prevalence of both SNPs in 4 distinct Arab populations (Lebanon, Tunisia, Bahrain, and Saudi Arabia). Methods: Study subjects comprised 698 Lebanese, 313 Tunisian, 194 Bahraini, and 149 Saudi Arabian healthy subjects; genotyping was done by PCR-RFLP using Mnl I and Hind III for FV-Leiden and PRT G20210A, respectively. Results: The prevalence of the mutant A alleles of FV-Leiden and PRT G20210A were significantly higher among Lebanese (0.0788 and 0.0136) and Tunisians (0.0351 and 0.0128), as compared to Bahraini (0.0155 and 0.0052) and Saudi (0.0101 and 0.000) subjects. Higher frequency of the FV-Leiden G/A and A/A genotypes were seen in Lebanon (13.8 and 1.0%), followed by Tunisia (5.8 and 0.6%), Bahrain (3.1 and 0.0%) and Saudi Arabia ((2.0 and 0.0%). All PRT G20210A positive cases were in the heterozygote (G/A) state, and these comprised 3.6% for Lebanon, 2.6% for Tunisia, 1.0% for Bahrain. The carrier rate of FV-Leiden was significantly higher among Lebanese compared to the other populations (p < 0.001), while the difference in the prevalence of FV-Leiden between the other populations was not statistically different. With the exception of Lebanese-Saudi (p = 0.038), the prevalence of PRT G20210A was similar among the study communities. Furthermore, the overall average genetic differentiation between populations (estimated with the FST) was 0.0022 for FV-Leiden and 0.005 for PRT G20210A. Conclusions: These results further confirm the heterogeneity in FV-Leiden and PRT G20210A distribution among Arabs, and recommend potential institution of prophylactic measures for carriers of either or both SNPs.
KW - APC resistance
KW - Factor V Leiden
KW - PCR
KW - Prothrombin G20210A mutation
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U2 - 10.1007/s11239-005-3550-4
DO - 10.1007/s11239-005-3550-4
M3 - Article
C2 - 16261289
AN - SCOPUS:27944450847
SN - 0929-5305
VL - 20
SP - 163
EP - 168
JO - Journal of Thrombosis and Thrombolysis
JF - Journal of Thrombosis and Thrombolysis
IS - 3
ER -