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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
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pubmed:dateCreated |
1992-2-3
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pubmed:abstractText |
To investigate the role of protein charge in early diabetic proteinuria, the clearance of proteins differing in charge and/or size (anionic and cationic Igs, albumin) was evaluated in 98 insulin-dependent (type I) diabetic patients selected as a representative sample of the 418 patients attending our clinics. Of the patients, 12.9% were microalbuminuric and 4.8% were macroalbuminuric. Anionic and total IgG clearances were significantly increased in 30.6 and 12.2% of patients and were correlated with duration of disease. Anionic IgG4 clearances were increased in patients (9.2%) with normal IgG excretion, suggesting that charge-selectivity impairment is responsible for protein loss. Anionic Ig clearances were also higher in some patients (14.3%) with normal albumin clearance, probably as a result of different glomerular filtration and/or tubular reabsorption. The anionic-cationic IgG clearance ratio tended to increase in parallel with albumin clearance, but once above macroalbuminuric levels, it tended to fall again, indicating the concomitant presence of size-selectivity loss. The anionic IgG clearance and the anionic-cationic IgG ratio, in addition to albumin excretion, may be valuable in assessing early kidney protein charge-selectivity impairment and better characterizing normoalbuminuric patients and those in the preclinical stage of diabetic nephropathy.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0012-1797
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
40
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1685-90
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1756909-Adult,
pubmed-meshheading:1756909-Albuminuria,
pubmed-meshheading:1756909-Biological Markers,
pubmed-meshheading:1756909-Diabetes Mellitus, Type 1,
pubmed-meshheading:1756909-Diabetic Nephropathies,
pubmed-meshheading:1756909-Follow-Up Studies,
pubmed-meshheading:1756909-Glomerular Filtration Rate,
pubmed-meshheading:1756909-Humans,
pubmed-meshheading:1756909-Immunoglobulin G,
pubmed-meshheading:1756909-Metabolic Clearance Rate,
pubmed-meshheading:1756909-Models, Statistical,
pubmed-meshheading:1756909-Proteinuria
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pubmed:year |
1991
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pubmed:articleTitle |
Charge selectivity of proteinuria in type I diabetes explored by Ig subclass clearance.
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pubmed:affiliation |
Department of Endocrinology, University La Sapienza, Rome, Italy.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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