THE LYSOSOMAL N-ACETYL-BETA-D-GLUCOSAMINIDASE (NAG) ISOENZYMES IN PLASMA - STUDY OF DISTRIBUTION IN A GENERAL-POPULATION BY A SIMPLE ROUTINE CHROMATOFOCUSING PROCEDURE
Articolo
Data di Pubblicazione:
1993
Citazione:
THE LYSOSOMAL N-ACETYL-BETA-D-GLUCOSAMINIDASE (NAG) ISOENZYMES IN PLASMA - STUDY OF DISTRIBUTION IN A GENERAL-POPULATION BY A SIMPLE ROUTINE CHROMATOFOCUSING PROCEDURE / G. GOI, C. BAIRATI, C. ROGGI, L. MACCARINI, G. TETTAMANTI, C. MELONI, A. LOMBARDO. - In: CLINICA CHIMICA ACTA. - ISSN 0009-8981. - 221:1-2(1993), pp. 47-57.
Abstract:
We have adapted for routine analysis a pre-existing method for separating the three major N-acetyl-beta-D-glucosaminidase (NAG) isoenzyme forms - A, B+I-1 and I-2 - by chromatofocusing followed by fluorimetric assay of the enzyme activity. This method combines good resolution, accurate quantification of the different isoenzymes and high reproducibility with an acceptable degree of analytical precision. We have applied it to studying the isoenzyme levels in the plasma of a general population of 417 subjects and have analysed these enzyme activities as functions of age, sex, body mass and declared alcohol consumption. Unlike the levels of unfractionated enzyme, levels of all the isoenzymes were higher in men than in women at all ages except in the 20-29 year group. Isoenzyme I, showed the greatest sex difference. On the whole, with increasing age, both sexes showed more or less regular increases in plasma levels of all the isoenzymes. We also found significant correlations for the population as a whole with age and with body mass index. The only significant correlation with alcohol consumption was for B+I-1 in men.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Distribution in a general population; Isoenzymes; N-Acetyl-β-d-glucosaminidase; Plasma levels; Routine chromatofocusing procedure
Elenco autori:
G. GOI, C. BAIRATI, C. ROGGI, L. MACCARINI, G. TETTAMANTI, C. MELONI, A. LOMBARDO
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