purchased from Beijing Huafukang Biological Co.
Ltd. (Beijing, China). The mice were divided into four
groups: vehicle-NS (normal saline), CTRP1-NS, vehicleisoproterenol (ISO), and CTRP1-ISO. Mice from the two
ISO groups were injected subcutaneously with ISO (10
mg/kg/day for 3 days and then 5 mg/kg/day for 11 days).
The mice in the two CTRP1 groups (n=12 for each group),
following the last injection of ISO or NS, received 200
μg/kg recombinant CTRP1 full-length protein (ab151376,
Abcam, Cambridge, UK) or vehicle solution for 2 weeks
using an Alzet osmotic minipump (Durect, Cupertino,
CA, USA). Animal experiments were performed per the
guidelines of the National Institutes of Health Guidelines
for the Care and Use of Laboratory Animals (NIH
Publication No. 85-23, revised in 1996). All the animal
experiments were reviewed and approved by Xiangyang
Central Hospital's Animal Care and Use Committee.