난포액에 함유되어 있는 steroids와 sterol이 수정에 참여하는 정자의 주화성에 미치는 영향을 밝히기 위하여, progesterone, estradiol 17 beta 및 cholesterol이 sucrose 층으로부터 정자의 swim-up 분리에 미치는 영향을 조사하였던 바 얻어진 결과는 다음과 같다. 1. Progesterone은 정자의 이동과 운동성을 억제하였으나 수정능획득한 정자를 유인하였으며, 특히 50g/ml 수준의 progestero
This study was carried out to elucidate the effect of progesterone, estradiol 17 beta and cholesterol in follicular fluid on sperm chemotaxis for fertilization. By inducing swim-up migration through sucrose layer into bMSS containing progesterone, estradiol 17 beta and/or cholesterol, their effects on sperm migration and sperm movement were examined. And the results obtained were as follows; 1. Progesterone inhibited sperm migration and movement, but significantly attracted capacitated-sperm at the level of 50 g/ml. 2. Estradiol 17 beta inhibited sperm migration and movement, but didn't significantly inhibit migration of capacitated-sperm at the level of 10g/ml. 3. Cholesterol significantly stimulated sperm migration and movement at the level of 50g/ml, but didn't attact capacitated-sperm. 4. Progesterone and estradiol 17 beta reduced the effect of cholesterol stimulating sperm migration and movement. But estradiol 17 beta and cholesterol didn't reduce the effect of progesterone attracting capacitated-sperm. In conclusion, progesterone of 50g/ml in bMSS attracted the capacitated-sperm, cholesterol of 50g/ml stimulated sperm migration and movement, but estradiol 17 beta of 10g/ml didn't affect sperm swim-up separation.