Kidney clearance of D- and L-tryptophan by rats.
Renal clearances of D-tryptophan and of L-tryptophan by rats were compared. Both D- and L-tryptophan were reabsorbed by the rat kidney tubules very efficiently. Compared to the rapid excretion of D-tryptophan by the chick, the good retention of this isomer by the rat kidney might be responsible for its efficient utilization by rats.
D000818:Animals; D007444:Inulin / Q000378:metabolism; D007668:Kidney / Q000502:physiology*; D007700:Kinetics; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D013237:Stereoisomerism; D014364:Tryptophan / Q000378:metabolism* / Q000652:urine
D014364:Tryptophan; D007444:Inulin