Document Detail


Urinary endothelin-1 in chronic kidney disease and as a marker of disease activity in lupus nephritis.
MedLine Citation:
PMID:  19279127     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Chronic inflammation contributes to the development and progression of chronic kidney disease (CKD). Identifying renal inflammation early is important. There are currently no specific markers of renal inflammation. Endothelin-1 (ET-1) is implicated in the pathogenesis of CKD. Thus, we investigated the impact of progressive renal dysfunction and renal inflammation on plasma and urinary ET-1 concentrations. In a prospective study, plasma and urinary ET-1 were measured in 132 subjects with CKD stages 1 to 5, and fractional excretion of ET-1 (FeET-1) was calculated. FeET-1, serum C-reactive protein (CRP), urinary ET-1:creatinine ratio, and urinary albumin:creatinine ratio were also measured in 29 healthy volunteers, 85 subjects with different degrees of inflammatory renal disease but normal renal function, and in 10 subjects with rheumatoid arthritis without renal involvement (RA). In subjects with nephritis associated with systemic lupus erythematosus (SLE), measurements were done before and after 6 mo of treatment. In subjects with CKD, plasma ET-1 increased linearly as renal function declined, whereas FeET-1 rose exponentially. In subjects with normal renal function, FeET-1 and urinary ET-1:creatinine ratio were higher in SLE subjects than in other groups (7.7 +/- 2.7%, 10.0 +/- 3.0 pg/mumol, both P < 0.001), and correlated with CRP, and significantly higher than in RA subjects (both P < 0.01) with similar CRP concentrations. In SLE patients, following treatment, FeET-1 fell to 3.6 +/- 1.4% (P < 0.01). Renal ET-1 production increases as renal function declines. In subjects with SLE, urinary ET-1 may be a useful measure of renal inflammatory disease activity while measured renal function is still normal.
Authors:
Neeraj Dhaun; Pajaree Lilitkarntakul; Iain M Macintyre; Eline Muilwijk; Neil R Johnston; David C Kluth; David J Webb; Jane Goddard
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-03-11
Journal Detail:
Title:  American journal of physiology. Renal physiology     Volume:  296     ISSN:  1931-857X     ISO Abbreviation:  Am. J. Physiol. Renal Physiol.     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-05-26     Completed Date:  2009-07-15     Revised Date:  2011-04-28    
Medline Journal Info:
Nlm Unique ID:  100901990     Medline TA:  Am J Physiol Renal Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  F1477-83     Citation Subset:  IM    
Affiliation:
The Queen's Medical Research Institute, 3rd Floor East, Rm. E3.23, 47 Little France Crescent, Edinburgh, EH16 4TJ, United Kingdom. bean.dhaun@ed.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Biological Markers / urine
Endothelin-1 / blood,  metabolism,  urine*
Female
Humans
Inflammation
Kidney Failure, Chronic / blood,  metabolism,  urine*
Lupus Nephritis / blood,  metabolism,  urine*
Male
Middle Aged
Young Adult
Grant Support
ID/Acronym/Agency:
//British Heart Foundation
Chemical
Reg. No./Substance:
0/Biological Markers; 0/Endothelin-1
Comments/Corrections

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