Funding for this research was provided by:
National Natural Science Foundation of China (81772629, 81602158, 81602156, 81702275 and 81702437)
Tianjin Health and Family Planning Commission Foundation of Science and Technology (15KG142)
Text and Data Mining valid from 2019-01-04
Received: 30 August 2018
Accepted: 9 November 2018
First Online: 4 January 2019
Compliance with ethical standards
: Animal care and experiments were performed in accordance with guidelines of the Institutional Animal Use Committee of Tianjin Medical University, and the procedures were approved by the Institutional Animal Care and Use Committee.
: Written informed consent for publication was obtained from all participants.
: The authors have no competing interests to declare.