Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1992-12-15
pubmed:abstractText
The activities of four lysosomal enzymes and creatinine levels were measured in the plasma and urine of 17 healthy elderly and 7 young adults. Fractional enzyme excretion (FE ENZ) values for beta-hexosaminidase (N-acetylglucosaminidase), alpha-galactosidase, beta-galactosidase and beta-glucuronidase were calculated and compared between the two groups of subjects. FE ENZ was calculated as the ratio of enzyme clearance to creatinine clearance. The FE ENZ values for alpha-galactosidase, beta-galactosidase and beta-glucuronidase between the elderly and young populations were not statistically different; however, relative to the young control group, the FE ENZ value for beta-hexosaminidase was elevated approximately 2-fold in the elderly population (P = 0.06). The mean urinary alpha-galactosidase activity for the elderly population, when expressed on the basis of creatinine, was 50% lower than that of the control group (P = 0.03), whereas the mean urinary beta-hexosaminidase activity for the elderly was significantly higher compared to the control group (P = 0.008). When data for all subjects was analyzed, no correlation was observed between the urinary excretion of beta-hexosaminidase or alpha-galactosidase and glomerular filtration rate. These data indicate that with advancing age there are changes in the tubular secretion or reabsorption of selective lysosomal enzymes, particularly beta-hexosaminidase and alpha-galactosidase. These biochemical changes may provide a means of assessing subtle progressive deterioration of renal function.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0009-8981
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
210
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
47-54
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Comparison of urinary excretion of four lysosomal hydrolases in healthy elderly and young adults.
pubmed:affiliation
Department of Biochemistry, University of New Mexico School of Medicine, Albuquerque 87131.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't