Bariatric Surgery and Semaglutide Affect Bones and Heart Differently in Obese Mice
While both bariatric surgery and semaglutide cause weight loss, they have distinct effects on bone density and heart function in obese mice.
Quick Facts
What This Study Found
VSG and semaglutide produced comparable weight loss but had divergent effects on bone mineral density and cardiac function in obese mice.
Key Numbers
Obese male mice. 6 weeks semaglutide vs VSG vs sham/saline controls. Comparable weight loss. Different effects on energy expenditure, bone mineral density (microCT), and heart function (echocardiography).
How They Did This
Controlled animal study comparing VSG, semaglutide (6 weeks), and sham/saline controls in obese male mice with micro-CT and indirect calorimetry.
Why This Research Matters
Patients choosing between surgery and GLP-1 drugs need to understand that these approaches may affect bone and heart health differently.
The Bigger Picture
As GLP-1 drugs become alternatives to bariatric surgery, understanding their differing systemic effects is critical for patient selection.
What This Study Doesn't Tell Us
Mouse study — metabolic and physiological responses may differ in humans. Only male mice were studied. Short treatment duration.
Questions This Raises
- ?Does semaglutide preserve bone density better than bariatric surgery in humans?
- ?Are the cardiac differences clinically significant in human patients?
Trust & Context
- Key Stat:
- Distinct effects VSG and semaglutide diverged on skeletal health and heart function despite similar weight loss
- Evidence Grade:
- Preclinical animal study with controlled design — informative for mechanistic understanding but requires human confirmation.
- Study Age:
- Published in 2025, addressing a timely question as GLP-1 drugs compete with surgery for obesity treatment.
- Original Title:
- Vertical sleeve gastrectomy and semaglutide have distinct effects on skeletal health and heart function in obese male mice.
- Published In:
- American journal of physiology. Endocrinology and metabolism, 328(4), E555-E566 (2025)
- Authors:
- Picoli, Caroline de Carvalho, Tsibulnikov, Sergey, Ho, Mavy, DeMambro, Victoria, Feng, Tiange, Eltahir, May, Le, Phuong T, Chlebek, Carolyn, Rosen, Clifford J, Ryzhov, Sergey, Li, Ziru
- Database ID:
- RPEP-13049
Evidence Hierarchy
Tests effects in animals (usually mice or rats), not humans.
What do these levels mean? →Frequently Asked Questions
Is semaglutide safer for bones than bariatric surgery?
This mouse study found different bone effects, but human studies are needed to determine which approach better preserves bone health.
Do GLP-1 drugs affect the heart differently than surgery?
In this study, yes — the two approaches showed distinct cardiac effects, though the clinical significance in humans remains unclear.
Read More on RethinkPeptides
Cite This Study
https://rethinkpeptides.com/research/RPEP-13049APA
Picoli, Caroline de Carvalho; Tsibulnikov, Sergey; Ho, Mavy; DeMambro, Victoria; Feng, Tiange; Eltahir, May; Le, Phuong T; Chlebek, Carolyn; Rosen, Clifford J; Ryzhov, Sergey; Li, Ziru. (2025). Vertical sleeve gastrectomy and semaglutide have distinct effects on skeletal health and heart function in obese male mice.. American journal of physiology. Endocrinology and metabolism, 328(4), E555-E566. https://doi.org/10.1152/ajpendo.00521.2024
MLA
Picoli, Caroline de Carvalho, et al. "Vertical sleeve gastrectomy and semaglutide have distinct effects on skeletal health and heart function in obese male mice.." American journal of physiology. Endocrinology and metabolism, 2025. https://doi.org/10.1152/ajpendo.00521.2024
RethinkPeptides
RethinkPeptides Research Database. "Vertical sleeve gastrectomy and semaglutide have distinct ef..." RPEP-13049. Retrieved from https://rethinkpeptides.com/research/picoli-2025-vertical-sleeve-gastrectomy-and
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.