Placental transfer of intravenous fluoride in the pregnant ewe. 1980

A L Maduska, and R A Ahokas, and G D Anderson, and J Lipshitz, and J C Morrison

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.

UI MeSH Term Description Entries
D008431 Maternal-Fetal Exchange Exchange of substances between the maternal blood and the fetal blood at the PLACENTA via PLACENTAL CIRCULATION. The placental barrier excludes microbial or viral transmission. Transplacental Exposure,Exchange, Maternal-Fetal,Exposure, Transplacental,Maternal Fetal Exchange
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D005260 Female Females
D005459 Fluorides Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices. Fluoride
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012756 Sheep Any of the ruminant mammals with curved horns in the genus Ovis, family Bovidae. They possess lachrymal grooves and interdigital glands, which are absent in GOATS. Ovis,Sheep, Dall,Dall Sheep,Ovis dalli

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