The estradiol 17-β concentration in mice after treated with ethanolic leaf extract of Azadirachta indica (neem) (Englisch)

In: AIP Conference Proceedings ;  1844 ,  1 ;  7 ;  2017

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This research was conducted to determine the effect of ethanolic leaf extract of Azadirachta indica (Neem) on plasma estradiol 17-β synthesis in mice. Thirty virgin female mice (Swiss Webster strain) between 2.5 and 3 months old (25 ± 2.5 g body weight) were used as the experimental sample. The mice were divided into five groups: K-group were administered tap water; K+ group were administered contraceptive pills; P1 to P3 group were administered orally with ethanolic A. indica leaf extract at doses of 8.4, 11.2, and 14 mg/animal/day, respectively. The regularity of the estrous cycle was monitored during treatment. The mice were sacrificed after being treated orally for 21 days and blood was collected by cardiac puncture under chloroform anesthesia. The estradiol concentration was measured by ELISA. Ovaries were processed with the paraffin method and HE staining. Our results showed that the estrous cycle irregularity of treated groups was higher than K-group. The estradiol concentration was significantly different (p<0.05) compared to the control group (25.02 ± 1.16 pg/mL in the control group and 18.86 ± 2.21 pg/mL in treated group but there was no significant difference (p>0.05) between the treated groups. The atresia follicle number was significantly different (p<0.05), not compared to the control group but between treated groups also. It can be concluded that Neem extracts disrupt the estradiol 17-β concentration by interference with follicle development in the ovaries so that the regularity of estrous cycle was disrupted.

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