Résumé
An attempt to find out the male contraceptive molecule of plant origin, the extracts of seeds of Momordica charantia were tested in male mice. Petroleum ether, chloroform and ethanolic extracts of Momordica charantia were administered at the dose level of 25mg/100gm body weight to the albino mice for 48 days intraperitoneally. All the extracts showed antispermatogenic effect as the number of spermatogonia, spermatocytes, spermatids and spermatozoa were decreased. The increase in the weight of epididymis, prostate gland, seminal vesicle and vas deferens indicates clearly the androgenic property of these extracts. After subjecting to preliminary phytochemical screening ethanol extract showed positive tests for alkaloids, flavonoids, glycosides, phenols, tannins, oils and fats. Out of the three extracts tested, the ethanol extract seems to be more potent in its contraceptive and androgenic activities.
En un intento por descubrir la molécula de anticoncepción masculina de origen vegetal, fueron probados los extractos de semillas de Momordica charantia en ratones machos. Extractos de éter de petróleo, cloroformo y etanol de Momordica charantia fueron administrados en dosis de 25mg/100g de peso corporal a ratones albinos de 48 días por vía intraperitoneal. Todos los extractos mostraron un efecto antiespermatogénicos, con reducción del número de espermatogonias, espermatocitos, espermátidas y espermatozoides. El aumento de peso del epidídimo, próstata, vesículas seminales y conductos deferentes indica claramente la propiedad androgénica de estos extractos. Después de someter el extracto de etanol a la detección preliminar fitoquímica se observaron resultados positivos para alcaloides, flavonoides, glucósidos, fenoles, taninos, aceites y grasas. De los tres extractos probados, el extracto de etanol parece ser más potente en sus actividades de anticonceptivas y androgénicas.
Sujets)
Animaux , Mâle , Rats , Spermatozoïdes , Extraits de plantes/pharmacologie , Momordica charantia/toxicité , Graines/toxicité , Androgènes , Antispermatogènes/pharmacologie , Éthanol , Spermatogenèse , Extraits de plantes/toxicité , Système génital de l'hommeRésumé
The benzene chloroform and alcoholic extracts of the flowers of H.r.sinensis were administered (i.p.) at two different dose levels of 125 and 250 mg/kg body weight to adult male albino mice for 20 days. The results have shown decrease in the spermatogenic elements of testis and epididymal sperm count. High content of testicular cholesterol may be due to lowered androgen synthesis. The increase in the weight of accessory reproductive organs indicates the androgenicity of the plant extract itself, which is proved in the present study by testing the benzene extract in immature mice.
Sujets)
Antagonistes des androgènes/pharmacologie , Animaux , Antispermatogènes/pharmacologie , Benzène , Chloroforme , Cholestérol/métabolisme , Mâle , Souris , Extraits de plantes/pharmacologie , Numération des spermatozoïdes/effets des médicaments et des substances chimiques , Testicule/effets des médicaments et des substances chimiquesRésumé
Regressive changes in seminiferous tubules and Leydig cells, increased cholesterol content in testis, and degeneration of all germinal elements other than spermatogonia were observed in the male Swiss albino mice, treated with aqueous extract of V. rosea leaves for 24 days. While the results reflect antiandrogenic and antispermatogenic action of V. rosea, the selective retention of the spermatogonia provides scope for the much desired revival of spermatogenesis on cessation of the treatment.