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The COMT Val158Met Polymorphism is Significantly Associated with Early Onset Preeclampsia in Both African American and Caucasian Mothers.

Kaufman, M. R.; Hwang, A. E.; Pickrel, A. M.; Gray, C. M.; Goel, K. M.; Dhanraj, D. N.; Yaklic, J. L.; Maxwell, R. A.; Brown, T. L.

2024-05-03 obstetrics and gynecology
10.1101/2024.05.01.24306705 medRxiv
Show abstract

The aim of this study was to evaluate maternal and infant Val158Met polymorphisms of Catechol-O-Methyltransferase (COMT), a reported indicator of preeclamptic risk, in a United States population. Healthy control, early-onset preeclamptic, and late-onset preeclamptic patients were enrolled in this study. Genomic DNA was isolated from mothers and infants via buccal swabs and DNA was genotyped via tetra-primer amplification PCR. Our findings indicate that the COMT genotype was not significantly associated with late-onset PE. While there were no significant differences between African American and Caucasian races, the maternal COMTMet158Met genotype was significantly associated with early-onset preeclampsia in both African Americans and Caucasians when compared to COMTVal158Val or COMTVal158Met. These results suggest that the maternal COMTMet158Met genotype may be a risk factor for early-onset PE.

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