Daniel A. Enquobahrie

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Identifying the downstream effects of disease-associated SNPs is challenging. To help overcome this problem, we performed expression quantitative trait locus (eQTL) meta-analysis in non-transformed peripheral blood samples from 5,311 individuals with replication in 2,775 individuals. We identified and replicated trans eQTLs for 233 SNPs (reflecting 103(More)
OBJECTIVE The role of posttranscription regulation in preeclampsia is largely unknown. We investigated preeclampsia-related placental microRNA (miRNA) expression using microarray and confirmatory quantitative real-time polymerase chain reaction experiments. STUDY DESIGN Placental expressions of characterized and novel miRNAs (1295 probes) were measured in(More)
BACKGROUND We investigated the relationship between early pregnancy plasma lipid concentrations and risk of preeclampsia. METHODS In a prospective cohort study, maternal blood samples were collected at an average of 13 weeks gestation. From the cohort, we selected 57 women who developed preeclampsia and 510 who remained normotensive and served as control(More)
BACKGROUND From initiation to plaque rupture, immune system components contribute to atherosclerosis. We investigated variation in inflammation-related genes - interleukin (IL)-1beta, IL-6, C-reactive protein (CRP), IL-10, IL-18, and the tumor necrosis factor (TNF) superfamily [lymphotoxin(LT)-alpha, TNF-alpha, LT-beta] - with respect to nonfatal incident(More)
BACKGROUND Insufficient sleep and poor sleep quality, considered endemic in modern society, are associated with obesity, impaired glucose tolerance and diabetes. Little, however, is known about the consequences of insufficient sleep and poor sleep quality during pregnancy on glucose tolerance and gestational diabetes. METHODS A cohort of 1,290 women was(More)
OBJECTIVE Candidate genes that are associated with preeclampsia have not been described fully. We conducted microarray and confirmatory quantitative real time polymerase chain reaction studies to investigate global placental gene expression in preeclampsia. STUDY DESIGN RNA was extracted from placental samples that were collected from 18 preeclampsia(More)
Recent studies have demonstrated greater risks of cardiovascular events and mortality among persons who have lower 25-hydroxyvitamin D (25-OHD) and higher parathyroid hormone (PTH) levels. We sought to evaluate the association between markers of mineral metabolism and sudden cardiac death (SCD) among the 2312 participants from the Cardiovascular Health(More)
OBJECTIVE We investigated associations of early pregnancy maternal vitamin D concentrations with differential gene expression and post-transcription regulation. METHOD Plasma 25-hydroxyvitamin D (25[OH]D) was measured among participants of a nested case-control study. Participants with low (<25.5 ng/ml) and high (≥31.7 ng/ml) 25[OH]D were identified among(More)
Variations in candidate genes participating in oxidative stress, inflammation, and their interactions are potentially associated with diseases of atherosclerotic origin. We investigated independent and joint associations of variations in cholesterol ester transfer protein (CETP), interleukin-8 (IL8), peroxisome proliferator activator receptor-alpha (PPARA),(More)
OBJECTIVE Higher heme iron intake is associated with increased type 2 diabetes risk. However, no previous study has evaluated gestational diabetes mellitus (GDM) risk in relation to heme iron intake during pregnancy. We investigated associations of maternal preconceptional and early pregnancy heme and nonheme iron intake with subsequent GDM risk. RESEARCH(More)