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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1996-10-22
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pubmed:abstractText |
Concentrations of pentosidine, an advanced glycation end product, are increased in aging, diabetes mellitus, and uremia. Using HPLC with column switching, we developed a direct method of measuring pentosidine in urine and serum. We inject the sample directly onto a gel-filtration precolumn, select ("heart-cut") the eluate fraction containing pentosidine, and introduce this fraction into a reversed-phased column by use of a switching valve. The recovery rate of the complete method was 97.7-99.9%. The intraassay CV was 5.7%, and the interassay CV was 5.8%. The calibration curve showed significant linearity (r = 0.998, P = 0.0001). We examined urinary concentrations of pentosidine in 12 diabetic patients (mean +/- SD, 8.7 +/- 2.3 micromol/mol of creatinine), 32 patients with chronic renal failure (CRF; 36.1 +/- 39.0), 19 osteoporotic patients (7.9 +/- 5.3), and 29 healthy control subjects (5.2 +/- 2.3). In CRF, urinary pentosidine in the patients undergoing hemodialysis was significantly higher than in CRF patients not being treated by hemodialysis (mean, 58.1 vs 18.2; P <0.001). Also, concentrations of urinary and serum pentosidine were significantly correlated (r = 0.797, P = 0.0011). Because this method does not require pretreatment of samples, it is convenient and useful for measuring urinary and serum pentosidine.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0009-9147
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
42
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1439-44
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:8787701-Adult,
pubmed-meshheading:8787701-Aged,
pubmed-meshheading:8787701-Aging,
pubmed-meshheading:8787701-Arginine,
pubmed-meshheading:8787701-Chromatography, High Pressure Liquid,
pubmed-meshheading:8787701-Diabetes Mellitus,
pubmed-meshheading:8787701-Humans,
pubmed-meshheading:8787701-Kidney Failure, Chronic,
pubmed-meshheading:8787701-Lysine,
pubmed-meshheading:8787701-Middle Aged,
pubmed-meshheading:8787701-Renal Dialysis,
pubmed-meshheading:8787701-Time Factors,
pubmed-meshheading:8787701-Uremia
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pubmed:year |
1996
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pubmed:articleTitle |
Direct quantification of pentosidine in urine and serum by HPLC with column switching.
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pubmed:affiliation |
Department of Orthopedic Surgery, Hamamatsu University School of Medicine, Japan.
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pubmed:publicationType |
Journal Article
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