The Study
Iodine-131 treatment of thyroid cancer cells leads to suppression of cell proliferation followed by induction of cell apoptosis and cell cycle arrest by regulation of B-cell translocation gene 2-mediated JNK/NF-κB pathways
This study was done in a petri dish with cancer cells, not in people. It shows that when you add iodine-131, the cells act differently—some die, some stop growing. But that doesn't mean it works the same way in your body.
Analysis score
Maximum 58 for a case-control study.
Where the score came from
Radioactive iodine is used to destroy thyroid cancer cells. This study found it works by turning on a gene called BTG2, which stops the cells from growing and makes them self-destruct.
Where does this study sit?
Systematic Reviews & Meta-analyses
Max 100Randomized Trials
Max 90Cohort Studies
Max 72Case-Control
Max 58Cross-Sectional
Max 44Case Reports & Series
Max 30Expert Opinion
Max 532 / 100
Quality score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1This suggests radioactive iodine therapy works partly by activating BTG2 — a natural 'stop and die' signal in cancer cells — which could help explain why it's effective in some patients.
- 2Radioactive iodine killed over 99.5% of cancer cells, made 20% more cells die by self-destruction, and stopped over 60% of cells from dividing.
- 3Turning off BTG2 cut the death rate in half.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Brazilian Journal of Medical and Biological Research
Year
2017
Authors
L.M. Zhao, A. Pang
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.