Metabolism of aromatic amino acids in collagen diseases. Urinary excretion of metanephrine and normetanephrine, and spontaneous degradation of vanilpyruvic acid

1. 1. Urinary excretion of total metanephrine and normetanephrine was significantly lower in 20 cases of rheumatic fever and relative “collagen diseases”, as compared to 10 normal control cases. 2. 2. Ingestion of l-tryptophan resulted, in 2 out of 3 normal children, in significant increase of the u...

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