This work was supported by grants from the National Natural Science Foundation of China (Grant No. 81500349), the Natural Science Foundation of Hunan Province, China (Grant Nos. 2020JJ4528 and 2021JJ30510), the key program of the Educational Commission of Hunan Province, China (Grant No. 19A435), program of the Educational Commission of Hunan Province, China (Grant No. 19K069), and the Health and Family Planning Commission of Hunan Province, China (Grant No. B2017048).