5‐Hydroxytryptamine and tryptamine pathways in scleroderma

Abstract

Levels of 5‐hydroxyindoleacetic acid, indoleacetic acid and total indoles were determined in the urine of 23 patients with systemic scleroderma and 7 patients with cutaneous scleroderma, before and after peroral loading with L‐tryptophan (o'I g/kg body weight) …