title: Free amino acids of testes. Concentrations of free amino acids in the testes of several species and the precursors of glutamate and glutamine in rat testes in vivo.
abstract: Determination of the free amino acid and lactate content of testicular tissue in rat, guinea pig, rabbit, cat, gerbil, hamster, chicken and bullfrog indicates a substantial species variation. Insulin hypoglycaemia and ammonium acetate toxicity changes the concentration of several free amino acids of rat testes. (14)C radioactivity from labelled acetate and ethanol is rapidly incorporated into some of the free amino acids of rat testes in vivo, whereas incorporation from [(14)C]glucose is relatively slow. These results have been compared with those obtained from similar studies with rat brain. In contrast to brain, there is no evidence for glutamate compartmentation in testes.
mesh_terms: D000085:Acetates / Q000378:metabolism; D000596:Amino Acids / Q000097:blood / Q000378:metabolism*; D000818:Animals; D001001:Anura; D001921:Brain / Q000378:metabolism; D002247:Carbon Isotopes; D002415:Cats; D002645:Chickens; D006224:Cricetinae; D000431:Ethanol / Q000378:metabolism; D005849:Gerbillinae; D005947:Glucose / Q000378:metabolism; D005971:Glutamates / Q000378:metabolism; D006168:Guinea Pigs; D007328:Insulin / Q000494:pharmacology; D007773:Lactates / Q000378:metabolism; D008297:Male; D009928:Organ Specificity; D011817:Rabbits; D051381:Rats; D013045:Species Specificity; D013737:Testis / Q000187:drug effects / Q000378:metabolism*; D013997:Time Factors
chemical_list: D000085:Acetates; D000596:Amino Acids; D002247:Carbon Isotopes; D005971:Glutamates; D007328:Insulin; D007773:Lactates; D000431:Ethanol; D005947:Glucose