Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1988-7-25
pubmed:abstractText
We assessed the clearance of endogenous pseudouridine in humans to evaluate the potential use of this modified nucleoside as a marker of glomerular filtration rate. Pseudouridine concentrations in serum ultrafiltrates and in the corresponding 24-h urine specimens from 19 healthy men were determined by high-performance liquid chromatography. Mean (and SD) pseudouridine concentrations in serum and urine from this group averaged 2.77 (0.34) mumol/L and 203.2 (64.8) mumol/L, respectively. The calculated clearances of the nucleoside [87.3 (24.9) mL/min, n = 19], however, averaged approximately one-third lower than the corresponding creatinine clearances in the same individuals [131.8 (28.4) mL/min]. Measurement of simultaneous clearances of [3H]pseudouridine and [14C]inulin in rats also yielded a lower pseudouridine clearance, 0.78 relative to inulin. Our results are thus consistent with a partial net reabsorption of pseudouridine in both experimental animals and in humans, indicating that this compound would not be a suitable endogenous marker for routine estimation of the glomerular filtration rate.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0009-9147
pubmed:author
pubmed:issnType
Print
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1011-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Pseudouridine is unsuitable as an endogenous renal clearance marker.
pubmed:affiliation
Division of Environmental Health Laboratory Sciences, Centers for Disease Control, Atlanta, GA 30333.
pubmed:publicationType
Journal Article, Comparative Study