Leaves Extract Ameliorates Alterations Associated with 7, 12-Dimethyl Benz[a]Anthracene-Induced Mammary Damage in Female Wistar Rats.

leaves are used traditionally in West Africa for the treatment of swellings and cancer. We investigated if leaves extract could ameliorate 7, 12-dimethylbenz[a]anthracene (DMBA)-induced mammary damage. Female Wistar rats aged 52 ± 2 day were administered 80 mg/kg DMBA. After monitoring for 150 day, rats were administered 0, 50, 100, 200 mg/kg and 20 mg/kg Tamoxifen for 14 day. Serum estrogen receptor-α, IL-1β and TNF -α levels were determined using ELISA kits. Oxidative stress markers in mammary tissue homogenates were determined using standard spectrophotometric methods. Histopathological examination was done using hematoxylin and eosin staining and cyclooxygenase-2 (COX-2) expression using immunohistochemistry. Liquid chromatography-mass spectrometry was used to determine components present in the extract. Although tumors were not observed, significantly ( < 0.05) lower estrogen receptor-α, malondialdehyde, IL-1β and TNF -α levels, significantly ( < 0.05) higher glutathione and catalase activity, attenuation of malignant epithelial hyperplasia and mild COX-2 expression were observed in rats administered when compared to DMBA-induced untreated control. Liquid chromatography-mass spectrometry analysis of the extract revealed the presence of 4,5-dihydroxy-7-methoxy-6-methylflavone and vanillylamine, which are compounds with reported antioxidant and anti-inflammatory effects. Collectively, treatment with ameliorated some derangement observed in DMBA-induced rats.