|
Human sperm penetration into the ZP of unfertilised and fertilised oocytes |
||||
| Unfertilised oocytes |
Fertilised oocytes |
|||
|
|
||||
| Experiment |
Number of embedded spermatozoa per ZP mean ± SEM |
Penetrated zona pellucida % |
Number of embedded spermatozoa per ZP mean ± SEM |
Penetrated zona pellucida % |
|
|
||||
| 1 |
0.93 ± 0.32 |
57 (8/14)a |
0.18 ± 0.13** |
18* (2/11) |
| 2 |
1.14 ± 0.60 |
57 (4/7) |
0.22 ± 0.11** |
17*(4/23) |
| 3 |
1.14 ± 0.43 |
57 (8/14) |
0.26 ± 0.13** |
21*(4/19) |
|
|
||||
| Total |
1.06 ± 0.23 |
57 (20/35) |
0.23 ± 0.07*** |
19*** (10/53) |
|
()anumber of oocytes with penetrated zona pellucida/total number of oocytes; *,**,*** statistically different from unfertilised oocytes: * p < 0.05; ** p < 0.01; *** p < 0.001 with Student's t test (mean ± SEM) or Chi-squared test (%). | ||||
Patrat et al. BMC Developmental Biology 2006 6:59 doi:10.1186/1471-213X-6-59 |
||||