Vitamin C and primate bone marrow aging: molecular and progenitor findings
In a primate study, long-term oral vitamin C supplementation was associated with partial offsetting of selected age-related molecular and progenitor changes in bone marrow, including a larger lymphoid progenitor pool and transcriptomic age estimates about 4 years lower. [1]
Automatic summary · not editorially reviewed
The key findings
Aging primate bone marrow showed severe depletion of common lymphoid progenitors and myeloid-biased hematopoietic stem and progenitor cell output. [1]
Long-term oral vitamin C supplementation partially offset these phenotypes, expanding the lymphoid progenitor pool and rebalancing lineage commitment. [1]
This aligned with a reduction of about 4 years in transcriptomic age estimates, cross-validated by an epigenetic clock. [1]
The source at a glance
- Study type / format
- Abstract of a primate single-cell transcriptomic study with human in vitro assays
- Population / context
- Primates, with additional human in vitro assays
- Summary based on
- Study abstract
- Original publication
- July 16, 2026
Primate bone marrow aging mapped by single-cell transcriptomics
The abstract describes mapping the single-cell transcriptomic landscape of aging primate bone marrow. Aging was linked to severe depletion of common lymphoid progenitors, myeloid-biased output of hematopoietic stem and progenitor cells, and anatomical site-specific molecular adaptations. The authors state that whether these processes are modifiable in primates had remained unexplored.
Supporting source [1]
Vitamin C linked to partial reversal of progenitor decline
Long-term oral vitamin C supplementation partially offset these phenotypes: the common lymphoid progenitor pool expanded and lineage commitment trajectories were rebalanced. This aligned with a reduction of about 4 years in transcriptomic age estimates, cross-validated by an epigenetic clock. Cell-cell communication analyses suggested vitamin C remodels intercellular signaling and nominated a progranulin-linked candidate pathway; human in vitro assays showed recombinant progranulin mirrored selected vitamin C-associated molecular actions.
Supporting source [1]
Abstract-only scope: associations, not proven causes
These are described associations in an abstract; they do not establish that vitamin C causes the observed changes or extends lifespan. The findings are nominated as modifiable pathways for further investigation. The full text was not reviewed, so design details, sample size, duration and statistical uncertainty are not reported here.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. Design details, sample size, supplementation duration and statistical uncertainty are not reported in the abstract. The findings are associations, not proof of causation or of lifespan benefit.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Ye Y, Zhang H, Xin Z, Sun W, Liu L, Xiong M, Zhao H, Zhang Y, Geng J, Zhao L, Li J, Jiang X, Zuo Y, Ma S, Zhang H, Wang S, Zhao G, Izpisua Belmonte JC, Qu J, Zhang W, Liu GH. · europepmc.org · July 16, 2026