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Association between levels of pentraxin 3 and incidence of chronic kidney disease in the elderly
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2016 (English)In: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 279, no 2, 173-179 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: Higher levels of the novel inflammatory marker pentraxin 3 (PTX3) predict cardiovascular mortality in patients with chronic kidney disease (CKD). Yet, whether PTX3 predicts worsening of kidney function has been less well studied. We therefore investigated the associations between PTX3 levels, kidney disease measures and CKD incidence.

METHODS: Cross-sectional associations between serum PTX3 levels, urinary albumin/creatinine ratio (ACR) and cystatin C-estimated glomerular filtration rate (GFR) were assessed in two independent community-based cohorts of elderly subjects: the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS, n = 768, 51% women, mean age 75 years) and the Uppsala Longitudinal Study of Adult Men (ULSAM, n = 651, mean age 77 years). The longitudinal association between PTX3 level at baseline and incident CKD (GFR <60 mL( ) min(-1)  1.73 m(-) ²) was also analysed (number of events/number at risk: PIVUS 229/746, ULSAM 206/315).

RESULTS: PTX3 levels were inversely associated with GFR [PIVUS: B-coefficient per 1 SD increase -0.16, 95% confidence interval (CI) -0.23 to -0.10, P < 0.001; ULSAM: B-coefficient per 1 SD increase -0.09, 95% CI -0.16 to -0.01, P < 0.05], but not ACR, after adjusting for age, gender, C-reactive protein and prevalent cardiovascular disease in cross-sectional analyses. In longitudinal analyses, PTX3 levels predicted incident CKD after 5 years in both cohorts [PIVUS: multivariable odds ratio (OR) 1.21, 95% CI 1.01-1.45, P < 0.05; ULSAM: multivariable OR 1.37, 95% CI 1.07-1.77, P < 0.05].

CONCLUSIONS: Higher PTX3 levels are associated with lower GFR and independently predict incident CKD in elderly men and women. Our data confirm and extend previous evidence suggesting that inflammatory processes are activated in the early stages of CKD and drive impairment of kidney function. Circulating PTX3 appears to be a promising biomarker of kidney disease.

Place, publisher, year, edition, pages
2016. Vol. 279, no 2, 173-179 p.
Keyword [en]
chronic kidney disease; community; glomerular filtration; pentraxin 3; risk factor
National Category
Urology and Nephrology
Identifiers
URN: urn:nbn:se:uu:diva-262292DOI: 10.1111/joim.12411ISI: 000371617500006PubMedID: 26355706OAI: oai:DiVA.org:uu-262292DiVA: diva2:853298
Funder
Swedish Research CouncilSwedish Heart Lung FoundationMarianne and Marcus Wallenberg Foundation
Available from: 2015-09-12 Created: 2015-09-12 Last updated: 2017-12-04Bibliographically approved

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Lind, LarsLarsson, AndersÄrnlöv, Johan

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