Ethanol-Extracted Cameroonian Propolis Counteracts Tamoxifen-Induced Endometrial Hyperplasia by Modulating Apoptosis and Proliferation-Regulating Proteins in the Ovaries of Intact Wistar Rats

Figure 7

Photomicrographs (H&E staining 400×) of the ovaries of animals treated for 8 weeks with different substances. NOR: rats treated with distilled water as normal control; Tamox: rats treated with tamoxifen only at the dose of 10 mg/kg BW as negative control; Ful: rats treated with the pure antiestrogen fulvestrant at the dose of 300 μg/kg BW as positive control; EECP: rats treated with the ethanol-extracted propolis from Cameroon at doses of 16.5, 50, and 150 mg/kg BW as test groups. All rats apart from those of the normal group (NOR) were concomitantly administered tamoxifen at the dose of 10 mg/kg BW for 8 weeks to induce endometrial hyperplasia. P: primary follicle, PF: primordial follicle, PAF = pre-antral follicle, AF: antral follicle, GF: de Graaf follicle, CL: corpora lutea.