Stimulatory effect of vitamin A on tumoricidal activity of rat alveolar macrophages
1984
Vitamin A Boosts Tumor-Fighting Ability of Rat Macrophages
Sample size: 30
publication
10 minutes
Evidence: moderate
Author Information
Author(s): K. Tachibana, S. Sone, E. Tsubura, Y. Kishinol
Primary Institution: The University of Tokushima
Hypothesis
Can vitamin A activate rat alveolar macrophages to kill tumor cells?
Conclusion
High doses of vitamin A can enhance the tumor-fighting and phagocytic abilities of rat alveolar macrophages.
Supporting Evidence
- Vitamin A treatment increased the ability of macrophages to kill tumor cells.
- Retinyl palmitate was effective in activating macrophages in vitro.
- Oral administration of vitamin A for 4 days was necessary for full activation of macrophages.
Takeaway
Giving rats vitamin A helps their immune cells fight cancer better.
Methodology
F344 rats were treated with vitamin A and their alveolar macrophages were tested for tumoricidal activity and phagocytosis.
Limitations
The study was conducted on rats, and results may not directly apply to humans.
Participant Demographics
Specific pathogen-free inbred F344 male rats, aged 5-7 weeks.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
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