Urinary collagen IV and πGST: potential biomarkers for detecting localized kidney injury in diabetes--a pilot study.

2.50
Hdl Handle:
http://hdl.handle.net/10147/146563
Title:
Urinary collagen IV and πGST: potential biomarkers for detecting localized kidney injury in diabetes--a pilot study.
Authors:
Cawood, T J; Bashir, M; Brady, J; Murray, B; Murray, P T; O'Shea, D
Affiliation:
Department of Diabetes and Endocrinology, Christchurch Hospital, Christchurch, New Zealand. tom.cawood @ cdhb.govt.nz
Citation:
Urinary collagen IV and πGST: potential biomarkers for detecting localized kidney injury in diabetes--a pilot study. 2010, 32 (3):219-25 Am. J. Nephrol.
Journal:
American journal of nephrology
Issue Date:
2010
URI:
http://hdl.handle.net/10147/146563
DOI:
10.1159/000317531
PubMed ID:
20664197
Abstract:
Urinary biomarkers can identify damage to specific parts of the nephron. We performed a cross-sectional study to characterise the pattern of diabetic nephropathy using urinary biomarkers of glomerular fibrosis (collagen IV), proximal tubular damage (α-glutathione-S-transferase, GST) and distal tubular damage (πGST).; Clinical data from 457 unselected patients attending a hospital diabetes clinic were collected. Spot urine samples were analysed for albumin and creatinine. Biomarkers were measured by enzyme-linked immunosorbent assay, and corrected to urinary creatinine.; All 3 biomarkers correlated weakly with albumin/creatinine ratios (Pearson correlation <0.2, p values <0.001). The most common abnormality was elevated urinary collagen IV (glomerular, 35%) compared to αGST (proximal tubule, 18%) or πGST (distal tubule, 15%). The proportion of patients with abnormal biomarker results increased across the normo-, micro- and macroalbuminuria groups, with collagen IV (26, 58, 65%) and πGST (11, 25, 35%) but not αGST.; In patients with diabetes, these urinary biomarkers appear to identify renal damage that is related to, but distinct from, urine albumin/creatinine ratios. The markers of glomerular fibrosis and distal tubular damage related most closely to the degree of albuminuria. Longitudinal studies are now required to assess whether these biomarkers can detect early renal disease with greater specificity and sensitivity than the albumin/creatinine ratio.
Item Type:
Article
Language:
en
MeSH:
Adult; Biological Markers; Collagen Type IV; Cross-Sectional Studies; Diabetes Mellitus, Type 1; Diabetes Mellitus, Type 2; Diabetic Nephropathies; Female; Glutathione S-Transferase pi; Glutathione Transferase; Humans; Isoenzymes; Male; Middle Aged; Pilot Projects
ISSN:
1421-9670

Full metadata record

DC FieldValue Language
dc.contributor.authorCawood, T Jen
dc.contributor.authorBashir, Men
dc.contributor.authorBrady, Jen
dc.contributor.authorMurray, Ben
dc.contributor.authorMurray, P Ten
dc.contributor.authorO'Shea, Den
dc.date.accessioned2011-10-24T15:17:41Z-
dc.date.available2011-10-24T15:17:41Z-
dc.date.issued2010-
dc.identifier.citationUrinary collagen IV and πGST: potential biomarkers for detecting localized kidney injury in diabetes--a pilot study. 2010, 32 (3):219-25 Am. J. Nephrol.en
dc.identifier.issn1421-9670-
dc.identifier.pmid20664197-
dc.identifier.doi10.1159/000317531-
dc.identifier.urihttp://hdl.handle.net/10147/146563-
dc.description.abstractUrinary biomarkers can identify damage to specific parts of the nephron. We performed a cross-sectional study to characterise the pattern of diabetic nephropathy using urinary biomarkers of glomerular fibrosis (collagen IV), proximal tubular damage (α-glutathione-S-transferase, GST) and distal tubular damage (πGST).-
dc.description.abstractClinical data from 457 unselected patients attending a hospital diabetes clinic were collected. Spot urine samples were analysed for albumin and creatinine. Biomarkers were measured by enzyme-linked immunosorbent assay, and corrected to urinary creatinine.-
dc.description.abstractAll 3 biomarkers correlated weakly with albumin/creatinine ratios (Pearson correlation <0.2, p values <0.001). The most common abnormality was elevated urinary collagen IV (glomerular, 35%) compared to αGST (proximal tubule, 18%) or πGST (distal tubule, 15%). The proportion of patients with abnormal biomarker results increased across the normo-, micro- and macroalbuminuria groups, with collagen IV (26, 58, 65%) and πGST (11, 25, 35%) but not αGST.-
dc.description.abstractIn patients with diabetes, these urinary biomarkers appear to identify renal damage that is related to, but distinct from, urine albumin/creatinine ratios. The markers of glomerular fibrosis and distal tubular damage related most closely to the degree of albuminuria. Longitudinal studies are now required to assess whether these biomarkers can detect early renal disease with greater specificity and sensitivity than the albumin/creatinine ratio.-
dc.language.isoenen
dc.subject.meshAdult-
dc.subject.meshBiological Markers-
dc.subject.meshCollagen Type IV-
dc.subject.meshCross-Sectional Studies-
dc.subject.meshDiabetes Mellitus, Type 1-
dc.subject.meshDiabetes Mellitus, Type 2-
dc.subject.meshDiabetic Nephropathies-
dc.subject.meshFemale-
dc.subject.meshGlutathione S-Transferase pi-
dc.subject.meshGlutathione Transferase-
dc.subject.meshHumans-
dc.subject.meshIsoenzymes-
dc.subject.meshMale-
dc.subject.meshMiddle Aged-
dc.subject.meshPilot Projects-
dc.titleUrinary collagen IV and πGST: potential biomarkers for detecting localized kidney injury in diabetes--a pilot study.en
dc.typeArticleen
dc.contributor.departmentDepartment of Diabetes and Endocrinology, Christchurch Hospital, Christchurch, New Zealand. tom.cawood @ cdhb.govt.nzen
dc.identifier.journalAmerican journal of nephrologyen
dc.description.provinceLeinster-
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