Antifertility effect of chronically administered Tabernaemontana divaricata leaf extract on male rats.

OBJECTIVE: To investigate the antifertility effect of chronically administered Tabernaemontana divaricata (T. divaricata) leaf extract on male rats. METHODS: The effect of 50% ethanol extract of T. divaricata leaves on reproduction was studied on male rats. The study was divided into four groups of five animals each. The first groups (I) received vehicle alone to serve as control. The second, third and fourth groups (II, II and IV) of animals were administered the leaf extract daily at 50 mg/kg body weight, p.o.,100 mg/kg body weight, p.o., and 200 mg/kg body weight, p.o., respectively, for a period of 60 days. RESULTS: Significant decreases in the weight of testes, epididymis, seminal vesicle and ventral prostate were observed. A dose related reduction in the testicular sperm count, epididymal sperm count and motility, number of fertile male, ratio between delivered and inseminated females and numbers of pups were observed. The testis showed a clear correlation between the dose and severity of lesions of seminiferous epithelium. In general, the seminiferous tubules appear reduced in size with a frequently filled eosinophilic material. Spermatogenesis arrested at the secondary spermatocyte stage. Pachytene spermatocytes were undergoing degeneration. Disorganigation and sloughing of immature germ cell were visible. Leydinf cells were atrophied. No morphological changes were observed in Sertoli cells. Significant reduction in serum concentration of luteinizing hormone and testosterone were observed. No distinct change in serum FSH concentration was recorded. The final body weights of all groups were elevated markedly. No alterations were recorded in any hematologiocal parameters. CONCLUSION: It is concluded that the 50% ethanol extract of T. divaricata leaf produced dose related effect on male reproduction without altering general body metabolism.

Pharmacognostic parameters for evaluation of the rhizomes of Curcuma caesia.

In ethno medicinal practices, the traditional healers use the genus Curcuma for the treatment of various ailments but Curcuma caesia Roxb. is a very less known and almost untouched drug. The present work attempts to establish the necessary pharmocognostic standards for evaluating the plant material of C. caesia Roxb. Various parameters, such as morphology, microscopy, physicochemical constants, and phytochemical profiles of the entire parts of the plant were studied and the salient diagnostic features are documented. Major chemical constituents, extractive values, physicochemical constants, and other features are also been recorded.