High-fat diet induced obesity and anti-activin receptor antibody: Effects on bone properties in mice.

ABSTRACT:

Aim

Weight-loss therapy often results in an unintended loss of muscle and bone mass. Inhibitors of the activin receptor signaling pathway, such as bimagrumab, an anti-activin receptor antibody (αActRIIA/IIB ab), are under investigation to counteract weight-loss induced muscle loss, but their skeletal effects in obesity remain unclear. This study investigates αActRIIA/IIB ab on bone in mice exposed to a high-fat diet (HFD) model of obesity or standard chow.

Materials and methods

Male C57BL/6 J mice were stratified into four groups (n = 10/group, standard chow or HFD for 10 weeks ± αActRIIA/IIB ab). αActRIIA/IIB ab (10 mg/kg) was administered twice weekly during the final three weeks. The femur and vertebral body were assessed using DEXA, μCT, mechanical testing, and hi

SUBMITTER: Bromer FD 

PROVIDER: S-EPMC12493230 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature