Uptake and metabolism of tryptophan by the isolated perfused guinea-pig mammary gland.
Tryptophan uptake by the isolated perfused lactating guinea-pig mammary gland was 46.5+/-4.6 mug/h per g. Results of absorption studies and the use of [methylene-14C]tryptophan suggest that tryptophan is one of the group of amino acids that are transferred almost quantitatively from blood plasma to milk protein.
D000818:Animals; D005260:Female; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007774:Lactation; D008297:Male; D008321:Mammary Glands, Animal / Q000378:metabolism*; D008894:Milk Proteins / Q000096:biosynthesis; D011247:Pregnancy; D014364:Tryptophan / Q000097:blood / Q000378:metabolism*
D008894:Milk Proteins; D014364:Tryptophan