Mass fragmentographic identification of polyamine metabolites in the urine of normal persons and cancer patients, and its relevance to the use of polyamines as tumour markers
| Autor: | Gita A. van den Berg, Gijs T. Nagel, M. Ruud Halie, Frits A. J. Muskiet |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Time Factors
Lymphoma Metabolite medicine.medical_treatment Antineoplastic Agents Urine Gas Chromatography-Mass Spectrometry Butyric acid chemistry.chemical_compound Neoplasms Polyamines medicine Animals Humans Amino Acids chemistry.chemical_classification Chemotherapy Chromatography Catabolism Cancer General Chemistry medicine.disease Rats Enzyme chemistry Biochemistry Polyamine |
| Zdroj: | Journal of Chromatography B: Biomedical Sciences and Applications. 339:223-231 |
| ISSN: | 0378-4347 |
| Popis: | The mass fragmentographic identification of N-(2-carboxyethyl)-4-amino- n -butyric acid, N-(3-aminopropy])-N 1 -(2-carboxyethyl)-1,4-diaminobutane, N,N 1 -bis(2-carboxyethyl)-1,4-diaminobutane, and δ -aminovaleric acid in acid-hydrolysed urines of a normal person and two cancer patients is described. A previous study, in which the metabolic fate of intraperitoneally injected polyamines in rats was investigated, revealed that these compounds should be considered as non-α-amino acid metabolites of the naturally occurring polyamines. Quantification of polyamines and their non-α-amino acid metabolites by gas chromatography with nitrogen—phosphorus detection showed that, relative to the parent polyamines, humans normally excrete higher quantities of polyamine catabolites in urine than rats, suggesting that humans catabolize polyamines more efficiently. As illustrated by the follow-up of the concentrations of polyamines and their catabolites in the urine of a patient with high-grade non-Hodgkin lymphoma during chemotherapy, the catabolic pressure on polyamines may be considerably increased during neoplastic diseases, since an even higher proportion of oxidized polyamine metabolites was observed. It is therefore suggested that the additional measurement of the circulating concentrations of polyamine-degrading enzymes is of importance for the correct interpretation of polyamine (metabolite) determinations for oncological purposes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|