5-S-cysteinyldopa in the urine of melanoma patients
- PMID: 71802
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5-S-cysteinyldopa in the urine of melanoma patients
Acta Derm Venereol.
1977.
Abstract
A newly discovered amino acid, 5-S-cysteinyldopa, present in the urine of healthy subjects is excreted in pathological amounts in many patients suffering from melanoma metastases. Increased excretion of 5-S-cysteinyldopa may be observed before metastases become clinically evident. Determination of 5-S-cysteinyldopa is superior to determination of dopa+dopamine in the diagnosis of melanoma metastases.
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