title: Placental transfer of intravenous fluoride in the pregnant ewe.
abstract: Fluoride ion is produced with the biotransformation of two commonly used anesthetics, methoxyflurane and enflurane. Fluoride ion is added to prenatal vitamin preparations and water to prevent carious teeth. Very high levels of fluoride assailure. Previous studies of placental transfer of fluoride ion were conflicting. Our study in pregnant ewes revealed rapid transfer of the fluoride ion across the placenta with high fetal to maternal ratios as early as 1 minute.
mesh_terms: D000818:Animals; D005260:Female; D005459:Fluorides / Q000378:metabolism*; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D012756:Sheep
chemical_list: D005459:Fluorides