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Chinese Journal of Clinicians(Electronic Edition) ›› 2021, Vol. 15 ›› Issue (07): 532-536. doi: 10.3877/cma.j.issn.1674-0785.2021.07.010

• Basic Science Research • Previous Articles     Next Articles

Impact of repeated abortions on growth and reproductive capacity of F1 generation male mice

Fang Lv1, Lili Wang2, Xin Wang3, Ning Wang2, Shucheng Zhang2,()   

  1. 1. Reproductive Medicine Center, the Second Affiliated Hospital of Soochow University, Soochow 215004, China; Department of Reproductive Physiology, National Research Institute for Family Planning, Beijing 100081, China
    2. Department of Reproductive Physiology, National Research Institute for Family Planning, Beijing 100081, China
    3. Yangzhou University Medical College, Yangzhou 225003, China
  • Received:2021-05-26 Online:2021-07-15 Published:2021-11-09
  • Contact: Shucheng Zhang

Abstract:

Objective

To investigate the impact of repeated abortions on the growth and reproductive capacity of F1 generation male mice.

Methods

F1 generation male mice born by BALB/c mice after two medical abortions induced by intraperitoneal injection of RU486 were used as an experimental group, and F1 generation male mice born by BALB/c mice that had no history of abortions were used as a control group. The survival rate and body weight of F1 generation neonates during the first three weeks after birth were measured. The testicular weight, testicular morphology, epididymis sperm concentration, sperm motility, and reproductive ability of F1 generation male mice were compared between the two groups.

Results

There was no significant difference in neonate survival rate or body weight gain between the two groups (P>0.05), but the reproductive capacity paramters, including the testicular weight (P<0.01), sperm concentration (P<0.05), sperm activity (P<0.05), and the mating ability (P<0.05), were significantly lower in the experimental group than in the control group, indicating that the development of the reproductive system and fertility of F1 generation male mice decreased in the experimental group.

Conclusion

The reproductive system development and fertility of F1 male mice can be impaired by repeated abortions of mothers.

Key words: Repeated abortion, Sperm motility, F1 generation, Fertility

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