Abstract
Free amino acids in the tissue of the palatine tonsil and the adenoid were analyzed using a JEOL 6-AS Type Auto-Analyzer, and comparative examination was made on 26 kinds of amino acids discovered. Of these, 23 amino acids showed significantly high values in the palatine tonsil, but hydroxyproline and tryptophan showed somewhat higher values in the adenoid. These results suggest that the metabolism in the palatine tonsil is more active than in the adenoid.