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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1995-3-7
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pubmed:abstractText |
The effect of storage time and temperature on the immunological turbidimetric measurement of a low concentration of albumin in urine was investigated. In storage at -20 degrees C, the albumin level decreased, but the rate of this decrease differed considerably among specimens. However, under storage at room temperature for 2 weeks, or at 4 degrees C for 5 weeks albumin levels did not show significant changes. At -40 degrees C and -80 degrees C there were only slight decreases. At -40 degrees C decreases were slightly greater than at -80 degrees C. Therefore, -80 degrees C was found to be the optimal temperature for long-term storage of urinary albumin. Some of the specimens showed a 50% decrease in albumin level after storage for 9 weeks at -20 degrees C, but remained unchanged after storage for the same period at -80 degrees C. A pair of specimens preserved at -20 degrees C and -80 degrees C were isolated by SDS-PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis). After electrophoresis, urinary proteins were stained by silver staining to observe bands, and albumin content was determined by immunoblotting. A decrease in albumin concentration was also observed by densitometric detection.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0918-6158
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
17
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1241-5
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:7841946-Albuminuria,
pubmed-meshheading:7841946-Diabetic Nephropathies,
pubmed-meshheading:7841946-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:7841946-Humans,
pubmed-meshheading:7841946-Immunoblotting,
pubmed-meshheading:7841946-Nephelometry and Turbidimetry,
pubmed-meshheading:7841946-Silver Staining,
pubmed-meshheading:7841946-Specimen Handling,
pubmed-meshheading:7841946-Temperature
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pubmed:year |
1994
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pubmed:articleTitle |
Studies of diabetic nephropathy. I. Effects of storage time and temperature on microalbuminuria.
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pubmed:affiliation |
Department of Medical Technology, College of Medical Care and Technology, Gunma University, Japan.
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Randomized Controlled Trial
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