Biomaterial Database

Technetium metabolism by lactating goats. 1989

M E Ennis, and J E Johnson, and G M Ward, and K N Boamah

Department of Radiology and Radiation Biology, Colorado State University, Fort Collins 80523.

The goat milk transfer coefficients of 99mTc, 95mTc and 99Tc, administered as pertechnetate (TcO4-), were 1.5 x 10(-4), 8.5 x 10(-4) and 1.1 x 10(-2) d L-1, respectively. The differences between the goat milk transfer coefficients of the three Tc isotopes administered as TcO4- were significant (p less than 0.05). The milk transfer coefficients of Tc were affected by chemical form and specific activity. Reduced 99mTc produced a transfer coefficient 17 times lower than that of 99TcO4- in the same goats. Reduction of pertechnetate in the rumen was evaluated to explain the low and variable transfer coefficients.

UI	MeSH Term	Description	Entries
D007275	Injections, Intravenous	Injections made into a vein for therapeutic or experimental purposes.	Intravenous Injections,Injection, Intravenous,Intravenous Injection
D007774	Lactation	The processes of milk secretion by the maternal MAMMARY GLANDS after PARTURITION. The proliferation of the mammary glandular tissue, milk synthesis, and milk expulsion or let down are regulated by the interactions of several hormones including ESTRADIOL; PROGESTERONE; PROLACTIN; and OXYTOCIN.	Lactation, Prolonged,Milk Secretion,Lactations, Prolonged,Milk Secretions,Prolonged Lactation,Prolonged Lactations
D008892	Milk	The off-white liquid secreted by the mammary glands of humans and other mammals. It contains proteins, sugar, lipids, vitamins, and minerals.	Cow Milk,Cow's Milk,Milk, Cow,Milk, Cow's
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
D006041	Goats	Any of numerous agile, hollow-horned RUMINANTS of the genus Capra, in the family Bovidae, closely related to the SHEEP.	Capra,Capras,Goat
D000284	Administration, Oral	The giving of drugs, chemicals, or other substances by mouth.	Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
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
D012417	Rumen	The first stomach of ruminants. It lies on the left side of the body, occupying the whole of the left side of the abdomen and even stretching across the median plane of the body to the right side. It is capacious, divided into an upper and a lower sac, each of which has a blind sac at its posterior extremity. The rumen is lined by mucous membrane containing no digestive glands, but mucus-secreting glands are present in large numbers. Coarse, partially chewed food is stored and churned in the rumen until the animal finds circumstances convenient for rumination. When this occurs, little balls of food are regurgitated through the esophagus into the mouth, and are subjected to a second more thorough mastication, swallowed, and passed on into other parts of the compound stomach. (From Black's Veterinary Dictionary, 17th ed)	Rumens
D013670	Sodium Pertechnetate Tc 99m	A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in the gastrointestinal system, cardiovascular and cerebral circulation, brain, thyroid, and joints.	Pertechnetate Sodium,Tc 99m-Pertechnetate,Technetium Tc 99m Pertechnetate,99Tc-Pertechnetate,99TcmO4,99mTcO4,Pertechnetate,Technetium Pertechnetate,Technetium Tc 99m O(4),Technetium-99mTc-pertechnetate,99Tc Pertechnetate,99m-Pertechnetate, Tc,Pertechnetate, Technetium,Sodium, Pertechnetate,Tc 99m Pertechnetate,Technetium 99mTc pertechnetate