No staining showed significant correlation with the time from the onset of nephritis to the diagnostic renal biopsy (α-SMA: r = 0.22, p = 0.38; vimentin: r = -0.066, p = 0.79; PSGL-1 in glomeruli: r = -0.13, p = 0.62; PSGL-1 in tubulointerstitium: r = 0.065, p = 0.83). Here, ACTA1 is linked to nephritis.