Objective:To investigate the indications of half-ICSI and the value of half-ICSI to prevent fertilization failure. Methods:The indications of the cases in the group of fertilization failure(fertilization rate was 0%)or lower fertilization rate(fertilization rate less than 30%) were compared with those in the group(fertilization rate more than 65%). Results:The fertilization rate of IVF(in vitro fertilization) in the half-ICSI was lower than that of conventional IVF. The indication of the borderline semen quality in the groups of fertilization failure and lower fertilization rate were 51.2% and 63.3% ,respectively.Compared with the normal fertilization rate group, the indications in the groups of fertilization failure or lower fertilization rate were sig- nificantly differen(tP

Objective:To observe the changes of cellular immunity after the therapy and investigate the effect of the treatment of recurrent spontaneous abortion by active immunotherapy.Methods:32 cases with RSA were treated by their husbands' lymphocyte and were observed the local skin reaction.The changes of the serum CD 4,CD 8 cell and the ratio of CD 4/CD 8 before and after the active immunotherapy were observed simultaneously.Results:The local skin reactions were gradually alleviated by the active immunotherapy.The skin reaction area of the last therapy were remarkablely different from that of the first therpy time ( P 0.05),but the percentage of CD 8 cell was higher significantly ( P