Table 2.

Scoring and distribution of glomerular and tubular lesions in the groups under study at the final time

	Rat groups Young (n=8) Old (n=7)	Scoring and distribution of glomerular and tubular lesions
		Absent	Mild (<25%)	Moderate (25–50%)	Severe (>50%)
Glomerular Lesions
Thickening of CB	Young	8 (100%)	0	0	0
	Old	2 (28,6%)	4 (57,1%)	1 (14,3%)	0
Hyalinosis of the vascular pole	Young	8 (100%)	0	0	0
	Old	0 (0 %)	7 (100%)	0	0
Glomerular atrophy	Young	8 (100%)	0	0	0
	Old	7 (100%)	0	0	0
Dilatation of the Bowman’s Space	Young	8 (100%)	0	0	0
	Old	5 (71,4%)	2 (28,6%)	0	0
Hypercellularity	Young	8 (100%)	0	0	0
	Old	2 (28,6%)	4 (57,1%)	1 (14,3%)	0
Tubular Lesion
Hyaline cylinders	Young	8 (100%)	0	2 (28,5%)	0
	Old	0	5 (71,4 %)	0	0
TBM irregularity	Young	8 (100%)	0	0	0
	Old	3 (42,9%)	1 (14,3%)	3 (42,9%)	0
Tubular calcification	Young	8 (100%)	0	0	0
	Old	7 (100%)	0	0	0
Interstitial fibrosis and tubular atrophy (IFTA)	Young	8 (100%)	0	0	0
	Old	0	7 (100%)	0	0
Interstitial Inflammatory infiltration	Young	8 (100%)	0	0	0
	Old	0	5(71,4%)	2 (28,5%)	0
Vacuolar Tubular Degeneration	Young	0	8 (100%)	0	0
	Old	0	0	7 (100%)	0