Aged mice: impaired bone glycolysis linked to age-related bone loss
In aged mice, age-related decline in bone formation was coupled with impaired glycolysis in bone tissue; long-term calorie restriction prevented age-related trabecular bone loss, and boosting glycolysis in osteoblasts increased bone mass. [1]
Automatic summary · not editorially reviewed
The key findings
In aged mice, age-related decline in bone formation was coupled with intrinsic impairment of glycolysis within bone tissue. [1]
Long-term calorie restriction prevented age-related trabecular bone loss in the aged mice. [1]
Osteoblast-specific genetic enhancement of glycolysis increased bone mass in aged mice. [1]
The source at a glance
- Study type / format
- Preclinical mouse study (abstract)
- Population / context
- Aged mice
- Summary based on
- Study abstract
- Publication status
- Preprint · peer-review status not confirmed
- Original publication
- October 6, 2026
Aged mice and bone glycolysis question
The abstract notes that bone loss and metabolic dysregulation often coexist in older adults, but how age-related changes in bone cell metabolism relate to bone-forming activity was unclear. The researchers modeled both conditions in aged mice and used in vivo stable-isotope tracing. They report that the age-related decline in bone formation was coupled with an intrinsic impairment of glycolysis within bone tissue.
Supporting source [1]
Enzyme levels, gene upregulation and calorie restriction
The impaired glycolysis was associated with reduced protein levels of key glycolysis enzymes, while transcriptomics analyses revealed compensatory upregulation of glycolysis genes in aged bone. As a metabolic intervention, long-term calorie restriction prevented age-related trabecular bone loss in these mice. These are associations and an intervention result in mice, not evidence of cause in people.
Supporting source [1]
Boosting osteoblast glycolysis in aged mice
Osteoblast-specific genetic enhancement of glycolysis, via overexpression of HIF1α or the rate-limiting enzyme PFKFB3, significantly improved osteoblast function and increased bone mass in aged mice. The authors describe glycolytic decline as a cell-autonomous driver of osteoblast deficiency and call the reactivation of glycolysis a proof of principle for promoting bone accrual in aging. This is preclinical mouse work; the abstract does not report human outcomes.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. Findings come from aged mice, including genetic and dietary interventions, and do not establish human outcomes or causes.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Song F, Marmo T, Lee WD, Koehnken Sawall J, Song C, Liao X, Ji X, Chellappa K, McReynolds MR, Baur JA, Thom C, Long F. · europepmc.org · October 6, 2026