Research Article

Urinary β2-Microglobulin Is a Good Indicator of Proximal Tubule Injury: A Correlative Study with Renal Biopsies

Table 1

Clinical indices, diagnosis, concentration of β2-microglobulin, serum creatinine, and urine analysis.

Age (year)GenderDiagnosisβ2-microglobulin (µg/L)KIM scoreSerum creatinine (mg/dL)Urine analysis

53FIgA nephropathy<0.210.50.9Hematuria
72MMembranous nephropathy<0.211.52.4↑ Tubular cells, hematuria
59FDiabetic nephropathy<0.211.01.51↑ Tubular cells
51FFocal, segmental glomerulosclerosis<0.211.01.1Hematuria
46MDiabetic nephropathy, IgA nephropathy<0.212.02.5↑ Tubular cells, hematuria
37MLupus nephritis<0.211.53.2↑ Tubular cells, hematuria
72FAcute interstitial nephritis, IgA nephropathy <0.212.02.3Hematuria
69MMembranous nephropathy0.281.00.99↑ Tubular cells
87MIgA nephropathy, acute interstitial nephritis0.292.03.2↑ Tubular cells
50MLupus nephritis, tubular injury (toxic)0.313.00.64
83MDiabetic nephropathy, tubular injury0.331.01.00
53FFocal, segmental glomerulosclerosis0.471.02.40↑ Tubular cells
60MIgA nephropathy, tubular injury0.492.05.00↑ Tubular cells, hematuria
29MRenal transplantation, tubular injury0.532.04.50↑ Tubular cells, hematuria
35MIgA nephropathy0.542.02.90↑ Tubular cells, hematuria
49MLupus nephritis0.633.01.03↑ Tubular cells
68MFocal, segmental glomerulosclerosis0.691.01.15Hematuria
44FFocal, segmental glomerulosclerosis1.151.01.10↑ Tubular cells, hematuria
16FFocal, segmental glomerulosclerosis1.603.02.00↑ Tubular cells, hematuria
52FGranuloma1.892.00.70↑ Tubular cells
50MIgA nephropathy1.892.00.83
20MNormal4.521.03.26↑ Tubular cells
47MFocal, segmental glomerulosclerosis5.362.01.18↑ Tubular cells, hematuria
47MRenal transplantation5.442.01.19Hematuria
74MFocal, segmental glomerulosclerosis6.233.01.50Granular casts
63FFocal, segmental glomerulosclerosis7.191.04.50↑ Tubular cells, hematuria
38MDiabetic nephropathy7.872.03.00Granular casts
77FANCA-associated glomerulonephritis9.233.02.90
73MANCA-associated glomerulonephritis12.91.52.30
63MDiabetic nephropathy, tubular injury (toxic)16.11.06.00↑ Tubular cells
42MFocal, segmental glomerulosclerosis 29.81.01.70Neutrophils
62FFocal, segmental glomerulosclerosis35.93.07.10↑ Tubular cells
68FFocal, segmental glomerulosclerosis46.32.02.50↑ Tubular cells
53FAcute interstitial nephritis47.21.05.60↑ Tubular cells
60MAcute interstitial nephritis79.82.04.50↑ Tubular cells