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- W4384666402 abstract "SignificanceMaternal exposure to drugs during pregnancy is known to have detrimental effects on the fetus. Alcohol (ethanol) and nicotine are two of the most commonly co-abused substances during pregnancy, and prenatal poly-drug exposure is common due, in part, to the prevalence of unplanned pregnancies. The second trimester is a critical period for fetal neurogenesis and angiogenesis. When drug exposure occurs during this time, fetal brain development is affected. Several behavioral, morphological, and functional studies have evaluated the changes in fetal brain development due to exposure to these drugs individually. However, research on the combined effects of ethanol and nicotine is far more limited, specifically on fetal vasculature changes and development.AimWe use correlation mapping optical coherence angiography (cm-OCA) to evaluate acute changes in fetal brain vasculature caused by maternal exposure to a combination of ethanol and nicotine.ApproachEthanol (16.6% v/v, at a dose of 0.75g / kg) and nicotine (at a dose of 0.1 mg / kg) were administered to pregnant mice after initial cm-OCA measurements in utero. Subsequent measurements were taken at 5-min intervals for a total period of 45 min. Results from these experiments were compared to results from our previous studies in which the mother was exposed to only ethanol (dose: 0.75 g / kg) or nicotine (dose: 0.1 mg / kg).ResultsWhile results from exposure to ethanol or nicotine independently showed vasoconstriction, no significant change in vasculature was observed with combined exposure.ConclusionResults suggested antagonistic effects of ethanol and nicotine on fetal brain vasculature." @default.
- W4384666402 created "2023-07-20" @default.
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- W4384666402 date "2023-07-18" @default.
- W4384666402 modified "2023-09-26" @default.
- W4384666402 title "Assessing the effects of prenatal poly-drug exposure on fetal brain vasculature using optical coherence angiography" @default.
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- W4384666402 doi "https://doi.org/10.1117/1.jbo.28.7.076002" @default.
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