OBJECTIVE: To study the in vitro effect of colchicine on the motility of normal human spermatozoa. METHODS: Seminal fluid was obtained from 15 normal healthy volunteers. Following the swim-up technique for sperm selection, samples of sperm were incubated with different concentrations of colchicine and their forward motility was assessed after 2, 17, and 24 hours. RESULTS: Colchicine concentrations of 10 micrograms/mL and 20 micrograms/mL reduced spermatozoal motility, while a concentration of 2 micrograms/mL did not have a significant inhibitory effect. Reduction in motility was observed after a minimum incubation of 18 hours. After 24 hours 90-95% of the spermatozoa was shown to be viable by eosin staining. CONCLUSION: Relatively high concentration of colchicine may affect in vitro motility of sperm, probably by its direct effect on the microtubules rather than by causing spermatozoal death.
OBJECTIVE: To study the in vitro effect of colchicine on the motility of normal human spermatozoa. METHODS: Seminal fluid was obtained from 15 normal healthy volunteers. Following the swim-up technique for sperm selection, samples of sperm were incubated with different concentrations of colchicine and their forward motility was assessed after 2, 17, and 24 hours. RESULTS:Colchicine concentrations of 10 micrograms/mL and 20 micrograms/mL reduced spermatozoal motility, while a concentration of 2 micrograms/mL did not have a significant inhibitory effect. Reduction in motility was observed after a minimum incubation of 18 hours. After 24 hours 90-95% of the spermatozoa was shown to be viable by eosin staining. CONCLUSION: Relatively high concentration of colchicine may affect in vitro motility of sperm, probably by its direct effect on the microtubules rather than by causing spermatozoal death.
Authors: L F Perez-Garcia; R J E M Dolhain; S Vorstenbosch; W Bramer; E van Puijenbroek; J M W Hazes; B Te Winkel Journal: Hum Reprod Update Date: 2020-11-01 Impact factor: 15.610