Wendy M White1, Zhifu Sun2, Kristi S Borowski1, Brian C Brost1, Norman P Davies1, Carl H Rose1, Vesna D Garovic3. 1. a Department of Obstetrics and Gynecology , Division of Maternal Fetal Medicine , Mayo Clinic, Rochester , MN , USA. 2. b Department of Health Sciences Research , Division of Biomedical Statistics and Informatics , Mayo Clinic, Rochester , MN , USA. 3. c Department of Internal Medicine , Division of Nephrology and Hypertension , Mayo Clinic, Rochester , MN , USA.
Abstract
OBJECTIVE: To analyze methylation profiles of known preeclampsia/eclampsia (PE) candidate genes in normal (NL) and preeclamptic (PE) women at delivery. METHODS: A matched case-control study comparing methylation in 79 CpG sites/33 genes from an independent gene set in maternal leukocyte DNA in PE and NL (n = 14 each) on an Illumina BeadChip platform. Replication performed on second cohort (PE = 12; NL = 32). RESULTS: PE demonstrates differential methylation in POMC, AGT, CALCA, and DDAH1 compared with NL. CONCLUSION: Differential methylation in four genes associated with PE may represent a potential biomarker or an epigenetic pathophysiologic mechanism altering gene transcription.
OBJECTIVE: To analyze methylation profiles of known preeclampsia/eclampsia (PE) candidate genes in normal (NL) and preeclamptic (PE) women at delivery. METHODS: A matched case-control study comparing methylation in 79 CpG sites/33 genes from an independent gene set in maternal leukocyte DNA in PE and NL (n = 14 each) on an Illumina BeadChip platform. Replication performed on second cohort (PE = 12; NL = 32). RESULTS: PE demonstrates differential methylation in POMC, AGT, CALCA, and DDAH1 compared with NL. CONCLUSION: Differential methylation in four genes associated with PE may represent a potential biomarker or an epigenetic pathophysiologic mechanism altering gene transcription.
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