Netrin-1, a urinary proximal tubular injury marker, is elevated early in the time course of human diabetes

Calpurnia Jayakumar, Ferdau L. Nauta, Stephan J.L. Bakker, Henk Bilo, Ron T. Gansevoort, Maribeth H Johnson, Ganesan Ramesh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Background: Netrin-1 was recently identified as an early diagnostic biomarker of chronic kidney disease (CKD) in an experimental animal model. However, its usefulness for early diagnosis of CKD in humans is unknown. The current study evaluated whether netrin-1 is increased in urine from human diabetic patients. Methods: Spot urine samples from healthy volunteers, diabetes without microalbuminuria, diabetes with microalbuminuria and diabetes with macroalbuminuria were collected after receiving consent. Netrin-1 in urine was quantified by enzyme-linked immunosorbent assay and the data analyzed to determine whether urinary netrin-1 significantly correlates with disease progression. Results: Urinary netrin-1 levels were significantly increased in normoalbuminuric diabetic patients compared to healthy controls, and still further elevated in patients with microalbuminuria and overt nephropathy. Urinary netrin-1 was significantly associated with albuminuria and estimated glomerular filtration rate, independently of age and sex. Conclusion: Netrin-1 is detectable in urine from diabetic patients and may serve as a useful early diagnostic biomarker predicting the development of CKD in diabetes.

Original languageEnglish (US)
Pages (from-to)151-157
Number of pages7
JournalJournal of Nephrology
Volume27
Issue number2
DOIs
StatePublished - Jan 1 2014

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Wounds and Injuries
Chronic Renal Insufficiency
Urine
Biomarkers
Albuminuria
netrin-1
Glomerular Filtration Rate
Disease Progression
Early Diagnosis
Healthy Volunteers
Animal Models
Enzyme-Linked Immunosorbent Assay

Keywords

  • Albuminuria
  • Biomarker
  • Diabetic nephropathy
  • Netrin-1

ASJC Scopus subject areas

  • Nephrology

Cite this

Netrin-1, a urinary proximal tubular injury marker, is elevated early in the time course of human diabetes. / Jayakumar, Calpurnia; Nauta, Ferdau L.; Bakker, Stephan J.L.; Bilo, Henk; Gansevoort, Ron T.; Johnson, Maribeth H; Ramesh, Ganesan.

In: Journal of Nephrology, Vol. 27, No. 2, 01.01.2014, p. 151-157.

Research output: Contribution to journalArticle

Jayakumar, Calpurnia ; Nauta, Ferdau L. ; Bakker, Stephan J.L. ; Bilo, Henk ; Gansevoort, Ron T. ; Johnson, Maribeth H ; Ramesh, Ganesan. / Netrin-1, a urinary proximal tubular injury marker, is elevated early in the time course of human diabetes. In: Journal of Nephrology. 2014 ; Vol. 27, No. 2. pp. 151-157.
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