Serum tumor necrosis factor-alpha concentrations are negatively correlated with serum 25(OH)D concentrations in healthy women
2008

Vitamin D and Inflammation in Healthy Women

Sample size: 69 publication Evidence: moderate

Author Information

Author(s): Catherine A. Peterson, Mary E. Heffernan

Primary Institution: University of Missouri-Columbia

Hypothesis

Serum 25(OH)D concentrations would be inversely correlated with circulating concentrations of inflammatory markers.

Conclusion

Serum 25(OH)D status is inversely related to TNF-α concentrations in healthy women.

Supporting Evidence

  • Women with regular UVB exposure had significantly higher serum 25(OH)D concentrations.
  • An inverse relationship was found between serum 25(OH)D and TNF-α concentrations.
  • The relationship remained significant after controlling for potential covariates.

Takeaway

This study found that women with higher vitamin D levels had lower levels of a substance that causes inflammation in the body.

Methodology

An observational study measuring serum 25(OH)D and inflammatory markers in healthy women aged 25-82.

Potential Biases

Women who tan regularly may have different health behaviors compared to non-tanners.

Limitations

The sample size was small and women with high UVB exposure were harder to recruit.

Participant Demographics

Caucasian females aged 25-82 years.

Statistical Information

P-Value

p<0.0001

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1186/1476-9255-5-10

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