Sharma, S. K. ; SaiRam, M. ; Ilavazhagan, G. ; Devendra, Kumar ; Shivaji, S. S. ; Selvamurthy, W. (1996) Mechanism of action of NIM-76: a novel vaginal contraceptive from neem oil Contraception, 54 (6). pp. 373-378. ISSN 0010-7824
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0010-7824(96)00204-1
Abstract
The present study was undertaken to elucidate the mechanism of spermicidal action of NIM-76, a fraction isolated from neem oil. The spermicidal activity of NIM-76 was confirmed using a fluorescent staining technique. NIM-76 was found to affect the motility of the sperm in a dose-dependent manner. Supplementation of pentoxifylline, which is known to enhance the motility of the sperm, could not prevent the spermicidal action of NIM-76. There was a gradual leakage of cytosolic LDH from the sperm in the presence of NIM-76. Electron microscopic studies revealed the formation of pores and vesicles over the sperm head, indicating the damage to the cell membrane. Membrane fluidization studies did not reveal any significant change in the fluidity of sperm cell membrane structure.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Vagina; NIM-76; Contraceptive; Mechanism |
| ID Code: | 64328 |
| Deposited On: | 07 Oct 2011 12:38 |
| Last Modified: | 07 Oct 2011 12:38 |
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