Funding for this research was provided by:
National Natural Science Foundation of China (Grant No. 31871391)
the Non-profit Central Research Institute Fund of National Research Institute For Family Planing (Grant No. 2020GJZ01)
the National Key Research and Development Program of China (YCZYPT, Grant No. 2016 YFC1000307)
Received: 9 September 2020
Accepted: 1 January 2021
First Online: 10 February 2021
Ethics approval and consent to participate
: The experimental protocol complied with the requirements of the National Institutes of Health Guide for Care and Use of Laboratory Animals. Experiments involving rats were approved by the ethics committee from the National Research Institute for Family Planning in Beijing in China (No. 201807).
: Authors agreed to this publication.
: We declare that there are no conflicts of interests.