Ethanolic extract of Persea americana Mill. (Lauraceae) seeds induced antiestrogenic effects in young female Wistar rats.

Autor:	Minko Essono, Stéphane, Mvondo, Marie Alfrede, Wego, Marius Trésor Kamgaing, Kemka Nguimatio, François Xavier, Momo Tetsatsi, Aimé Césaire, Watcho, Pierre
Předmět:	COMBINATION drug therapy PHENOMENOLOGICAL biology VAGINA DATA analysis QUALITATIVE research ETHANOL FLAVONOIDS PHYTOCHEMICALS FUNCTIONAL foods ORAL drug administration BIOCHEMISTRY DESCRIPTIVE statistics TREATMENT effectiveness AVOCADO PLANT extracts SEEDS RATS ESTRADIOL EPITHELIUM METABOLITES ANIMAL experimentation ONE-way analysis of variance STATISTICS CHOLESTEROL ESTROGEN antagonists DATA analysis software OVARIECTOMY UTERUS CHEMICAL inhibitors
Zdroj:	Journal of Complementary & Integrative Medicine; Jun2024, Vol. 21 Issue 2, p175-183, 9p
Abstrakt:	The ethanol extract of Persea americana seeds was found to inhibit the development of estrogen-dependent conditions in female Wistar rats, suggesting the ability of its secondary metabolites to interact with estrogen receptors (ERs), either as partial agonists or as antagonists. To test this hypothesis, the abovementioned extract was assessed for its ability to mimic and/or antagonize estradiol effects. Two experiments were conducted in ovariectomized (OVX) rats: (1) animals were treated with estradiol valerate (E2V; 1 mg/kg) or P. americana at doses of 25 and 50 mg/kg; (2) animals were treated with E2V alone (0.75 mg/kg) or in combination with P. americana at the abovementioned doses. Treatments were given orally for 3 days and animals were sacrificed for biochemical and histological analyses of the uterus and vagina. When administered alone, P. americana did not change the histomorphology of both organs (uterus and vagina). In combination with E2V, P. americana decreased uterine weight [30 % decrease (p<0.001) at 25 mg/kg and 24 % (p<0.01) at 50 mg/kg] and epithelium height (37 % decrease). This was associated with decreased estradiol levels (at least 86 % decrease, p<0.001) in the uterus. Similarly, vagina epithelium height decreased by at least 34 % (p<0.05) when E2V was co-administered with P. americana. The seed extract of P. americana contains ER antagonist secondary metabolites accounting for its ability to inhibit the development of estrogen-dependent conditions in female rats. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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