Figure 1. The histological examinations result from each group in this study. (A) Schematic diagram of kidney transplantation. Y→Y, young rat with kidney transplanted from young rat (young control); Y→O, old rat with kidney transplanted from young rat; O→Y, young rat with kidney transplanted from old rat; O→O, old rat with kidney transplanted from old rat (old control). (B) Renal functionality (serum creatinine, serum BUN, proteinurine) in each group. (C) HE staining of kidney tissue samples from each group (×200). (D) PAS staining of kidney tissue samples from each group (×200). (E) Masson staining of kidney tissue samples from each group (×200);