Evaluation of apoptosis by Bcl-2, Bax, and caspase-3 (immunohistochemical method). (a) Unusual development of immune reactivity in Control rats (IHC, ×200). (b) Immune reactivity shows increased apoptosis in the kidneys given Dichlorvos (IHK, ×200). (c) Low profile of apoptosis in the D + CAPE group (IHC, ×200). (d) The apoptosis level in the D + IL group is only lower than in the D group (IHC, ×400).