Abstract:
BACKGROUND:Evidence indicates that microRNAs (miRNA) play a role in the pathogenesis of chronic kidney diseases (CKD). We explored the possibility of using urinary miRNA as non-invasive biomarkers for CKD. METHODS:We quantified miRNA expression in urinary sediment of 56 CKD patients who underwent kidney biopsy. Patients were followed for 16.2 ± 15.5 months. RESULTS:Patients with diabetic glomerulosclerosis had lower urinary miR-15 expression, while those with IgA nephropathy had higher urinary miR-17 expression, than other diagnosis groups. Baseline proteinuria had significant inverse correlation with urinary expression of miR-15, miR-192, and miR-216a; baseline renal function correlated with urinary expression of miR-15, miR-17, miR-192, and miR-217. The rate of renal function decline correlated with urinary expression of miR-21 (r=0.301, p=0.026) and miR-216a (r=0.515, p < 0.0001). Patients with a high urinary expression of miR-21 and miR-216a had better dialysis-free survival than those with low expression (log rank test, p=0.005 and p=0.003, respectively). CONCLUSIONS:Urinary miR-21 and miR-216a expression correlated with the rate of renal function decline and risk of progression to dialysis-dependent renal failure. Our results suggest that urinary miRNA profiling has the potential of further development as biomarkers of CKD.
journal_name
Dis Markersjournal_title
Disease markersauthors
Szeto CC,Ching-Ha KB,Ka-Bik L,Mac-Moune LF,Cheung-Lung CP,Gang W,Kai-Ming C,Kam-Tao LPdoi
10.1155/2012/842764subject
Has Abstractpub_date
2012-01-01 00:00:00pages
137-44issue
3eissn
0278-0240issn
1875-8630pii
7072V4V5N61314G2journal_volume
33pub_type
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