Research Article Summary
• Objective: The study investigated whether long-term exposure to radon from natural hot springs affects immune function by examining changes in lymphocyte subsets in the peripheral blood of residents living near radon-rich springs in Pingshan County, China.
• Study groups: Researchers compared two groups:
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61 residents living near radon hot springs (radon group)
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51 residents with similar lifestyle and habits but no contact with hot springs (control group)
• Main findings on immune cells:
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The proportion of CD8⁺ T cells was significantly lower in the radon group.
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The ratios of CD4⁺/CD8⁺ and TCR/CD3 cells were significantly higher in the radon group versus controls.
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No significant differences were found in total lymphocyte counts or total CD3⁺ T cells between groups.
• Interpretation: These changes suggest that long-term low-dose radon exposure from hot springs may modulate immune function, potentially through effects on specific lymphocyte subsets.
• Overall conclusion: Radon-rich hot springs did not show obvious health threats in the studied population and may even enhance some aspects of immune response, although the mechanisms and long-term health implications require further investigation