THE METABOLISM OF DL-ALLOTHREONINE, DL-THREO-NINE AND DL-METHIONINE IN PHLORHIZIN GLYCOSURIC DOGS AND IN NORMAL FAST RATS

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1. In phlorizinized dogs, DL-allothreonine, DL-threonine and DL-methionine were all capable of yielding glucose.
2. The amino acids administered to fast normal rats were trans-formed into liver glycogen though the amount of glycogen was not so large but significant 6 or 9 hours after its administration.
3. In the urines of dogs and rats a certain amount of the admini-stered amino acid was excreted. In the case of DL-allothreonine and
DL-methionine, the racemic form, while in that Of DL-threonine more D-form than L-form was found.
The author wishes to thank Prof. R. Hirohata for his advice and encouragement during this study.