TY - JOUR
T1 - Genetic susceptibility to preeclampsia
T2 - Roles of cytosine-to-thymine substitution at nucleotide 677 of the gene for methylenetetrahydrofolate reductase, 68-base pair insertion at nucleotide 844 of the gene for cystathionine β-synthase, and factor V Leiden mutation
AU - Kim, Young Ju
AU - Williamson, Roger A.
AU - Murray, Jeffrey C.
AU - Andrews, Janet
AU - Pietscher, Jorie J.
AU - Peraud, Peter J.
AU - Merrill, David C.
N1 - Funding Information:
Supported by March of Dimes grant 6-FY97-0650 and National Institutes of Health grant HD-98-004.
PY - 2001/5
Y1 - 2001/5
N2 - OBJECTIVE: The purpose of this study was to evaluate the association between preeclampsia and 3 relatively common mutations that are important in the development of vascular disease and thrombosis; these are similar to conditions observed in pregnancies complicated by preeclampsia. STUDY DESIGN: Deoxyribonucleic acid was extracted from whole blood or cheek swabs of 281 patients with preeclampsia and 360 control subjects (all white). Control subjects consisted of women who had undergone at least 2 term pregnancies unaffected by preeclampsia. Mutation frequencies among patients with preeclampsia and control subjects were compared by standard χ2 analysis, with P < .05 considered significant. RESULTS: Thirty-three of 281 women with preeclampsia (11.7%) and 22 of 193 women with severe preeclampsia (11.4%) were homozygous for cytosine-to-thymine substitution at nucleotide 677 in the gene for methyltetrahydrofolate reductase (MTHFR), versus 41 of 360 control subjects (11.4%; difference not significant). Forty of 258 women with preeclampsia (15.5%) and 22 of 175 women with severe preeclampsia (12.6%) were heterozygous for the insertion of 68 bases at position 844 in the gene for cystathionine β-synthase (CBS), versus 58 of 332 control subjects (17.5%). Fifteen of 250 women with preeclampsia (6.0%) and 11 of 169 with severe preeclampsia (6.5%) were heterozygous for the Leiden mutation (glycine-to-afanine substitution at nucleotide 1691) in the gene for factor V (F5), versus 12 of 253 control subjects (4.7%; difference not significant). CONCLUSION: In this white population a missense mutation of MTHFR, an insertion mutation of CBS, and a missense mutation of F5 were not found to be associated with an increased risk for preeclampsia, either independently or in combination.
AB - OBJECTIVE: The purpose of this study was to evaluate the association between preeclampsia and 3 relatively common mutations that are important in the development of vascular disease and thrombosis; these are similar to conditions observed in pregnancies complicated by preeclampsia. STUDY DESIGN: Deoxyribonucleic acid was extracted from whole blood or cheek swabs of 281 patients with preeclampsia and 360 control subjects (all white). Control subjects consisted of women who had undergone at least 2 term pregnancies unaffected by preeclampsia. Mutation frequencies among patients with preeclampsia and control subjects were compared by standard χ2 analysis, with P < .05 considered significant. RESULTS: Thirty-three of 281 women with preeclampsia (11.7%) and 22 of 193 women with severe preeclampsia (11.4%) were homozygous for cytosine-to-thymine substitution at nucleotide 677 in the gene for methyltetrahydrofolate reductase (MTHFR), versus 41 of 360 control subjects (11.4%; difference not significant). Forty of 258 women with preeclampsia (15.5%) and 22 of 175 women with severe preeclampsia (12.6%) were heterozygous for the insertion of 68 bases at position 844 in the gene for cystathionine β-synthase (CBS), versus 58 of 332 control subjects (17.5%). Fifteen of 250 women with preeclampsia (6.0%) and 11 of 169 with severe preeclampsia (6.5%) were heterozygous for the Leiden mutation (glycine-to-afanine substitution at nucleotide 1691) in the gene for factor V (F5), versus 12 of 253 control subjects (4.7%; difference not significant). CONCLUSION: In this white population a missense mutation of MTHFR, an insertion mutation of CBS, and a missense mutation of F5 were not found to be associated with an increased risk for preeclampsia, either independently or in combination.
KW - Cystathione β-synthase
KW - Factor V Leiden
KW - HELLP (hemolysis, elevated liver enzymes, and low platelet count) syndrome
KW - Methylenetetrahydrofolate reductase
KW - Preeclampsia
UR - http://www.scopus.com/inward/record.url?scp=0035340294&partnerID=8YFLogxK
U2 - 10.1067/mob.2001.110411
DO - 10.1067/mob.2001.110411
M3 - Article
C2 - 11349190
AN - SCOPUS:0035340294
SN - 0002-9378
VL - 184
SP - 1211
EP - 1217
JO - American Journal of Obstetrics and Gynecology
JF - American Journal of Obstetrics and Gynecology
IS - 6
ER -