Funding for this research was provided by:
National Natural Science Foundation of China (31572372, 30972083)
Received: 7 February 2019
Accepted: 11 June 2019
First Online: 22 June 2019
Ethics approval and consent to participate
: This study was approved by the Ethical Committee for Laboratory Animals at Jilin Agricultural University in Changchun, China. (permit no. ECLA-JLAU-17031).
: Not applicable
: The authors declare that they have no competing interests.