Linked Life Data

6258826

Source:http://linkedlifedata.com/resource/pubmed/id/6258826

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1981-5-13
pubmed:abstractText
The condition for maximal activity (pH, buffer, saturating substrate concentration, range of linear relationships between enzyme activity versus incubation time, and versus enzyme concentration) in the fluorimetric assay of several glycohydrolases of lysosomal origin in human plasma and serum have been established. The following enzymes were studied: alpha-galactosidase, beta-galactosidase, beta-N-acetylglucosaminidase, beta-glucosidase, beta-glucuronidase, alpha-mannosidase, alpha-fucosidase. All examined enzymes turned out to be more or less unstable upon storage at 37 degrees C, 4 degrees c, and -20 degrees C in both serum and plasma. The only exceptions were beta-glucuronidase, which was stable in plasma and serum, and alpha-fucosidase which was stable only in plasma. Generally the degree of instability was greater in serum than in plasma. The levels of some enzymes (alpha-galactosidase, beta-galactosidase, beta-N-acetyl glucosaminidase, beta=glucuronidase) were markedly higher in serum than in plasma; conversely the levels of the same enzymes in "platelet free" serum equalled those in plasma. This stresses the necessity to use freshly prepared plasma for lysosomal glycohydrolase assay. Under the procedural conditions recommended for the assay the methods for the determination of lysosomal glycohydrolases in plasma appeared to be simple, sensitive and reproducible.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0009-8981
pubmed:author
pubmed:issnType
Print
pubmed:day
22
pubmed:volume
108
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
337-46
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Enzymes of lysosomal origin in human plasma and serum: assay conditions and parameters influencing the assay.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't