What question did this study set out to answer?

This research aims to understand how caloric restriction (CR) affects bone marrow adipose tissue (BMAT) and bone structure in a time and sex-dependent manner.

April 25, 2026Journal of EndocrinologyOpen Access

Caloric restriction exerts site-, sex-, and duration-dependent effects on skeletal structure and bone marrow adiposity

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Authors

KCKuan-Chan ChenNational Defense University RSRichard J. SulstonUniversity of Edinburgh KSKarla J. SuchackiScotland's Rural College

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Implication

Randomized trial investigates how caloric restriction influences bone and adipose tissue in mice, suggesting implications for health.

Key Points

This research aims to understand how caloric restriction (CR) affects bone marrow adipose tissue (BMAT) and bone structure in a time and sex-dependent manner.
Male and female C57BL/6NCrl mice at 9 weeks old were subjected to 30% caloric restriction for 1, 2, 4, or 6 weeks.
Micro-computed tomography was used to quantify bone structure and BMAT volume, focusing on site-specific effects.
BMAT expansion and bone alterations were analyzed with respect to duration, sex, and specific regions of the skeleton.
BMAT expansion was greater in the tibiae compared to femora and absent in humeri, indicating site-specific responses.
After 4 weeks of caloric restriction, BMAT expansion plateaued, correlating with energy deficit and not with altered body mass or glucose tolerance.
Caloric restriction led to a duration-dependent increase in bone fat and influenced bone structure, with stronger associations between BMAT levels and trabecular bone than cortical bone.

Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/69ec5b3d88ba6daa22dacccb https://doi.org/10.1530/joe-25-0391

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Caloric restriction exerts site-, sex-, and duration-dependent effects on skeletal structure and bone marrow adiposity

Discussion

Member takes

Implication

Key Points

Cite This Study

Caloric restriction exerts site-, sex-, and duration-dependent effects on skeletal structure and bone marrow adiposity

Discussion

Member takes

Implication

Key Points

Cite This Study

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