Animal and ethical approval
The C57BL/6 mice (18-22 g) with 4-6 week old were obtained from the Experimental Animal Center at Nankai University (Tianjin, China) (SCXK: 2019 -0001) and maintained under a controlled environment: 23 ± 2°C, 50 ± 5% humidity, and a 12 h/12 h light/dark cycles with free access to food and water, and were fed one week to acclimatize before experiment. All animal care and experimental procedures complied with guidelines approved by the Institutional Animal Care and Use Committee (IACUC) of Nankai University (Permit No. SYXK 2019-0001).