title: Assay of tissue free cystine: application to the diagnosis of cystinosis.
abstract: A fast method for the determination of tissue free cystine is shown. Its usefulness for free cystine assays in leucocytes and muscle biopsies is discussed. The use of muscle biopsy as a means of diagnosis is proposed.
mesh_terms: D001706:Biopsy; D003553:Cystine / Q000032:analysis* / Q000097:blood; D003554:Cystinosis / Q000175:diagnosis*; D006801:Humans; D007962:Leukocytes / Q000032:analysis; D009132:Muscles / Q000032:analysis*
chemical_list: D003553:Cystine