Determination of guanase activity in normal and pathological sera by high-performance liquid chromatography

Autor: E. Cernia, Paola Castellano, Anna Maria Girelli, A. Bozza, Silvia Canepari
Rok vydání: 1995
Předmět:
Zdroj: Biomedical Chromatography. 9:130-134
ISSN: 1099-0801
0269-3879
DOI: 10.1002/bmc.1130090304
Popis: A simple HPLC assay for serum guanase based on the direct determination of enzymatically formed xanthine was applied to normal and pathological sera. The procedure is sensitive, precise (CV below 5%) and suitable for routine purposes, and the method requires only 50 microL of sample. Using this method the reference range as determined from the sera of 40 healthy adult controls is 0-1.1 U/L. In patients with various liver diseases serum guanase activities were found to be increased 5- to 50-fold compared with the normal mean value.
Databáze: OpenAIRE