Elevation of Inducible Nitric Oxide Synthase and Cyclooxygenase-2 Expression in the Mouse Brain after Chronic Nonylphenol Exposure
2008

Effects of Nonylphenol on Mouse Brain Inflammation

Sample size: 36 publication 10 minutes Evidence: moderate

Author Information

Author(s): Zhang Yan-Qiu, Mao Zhen, Zheng Yuan-Lin, Han Bao-Ping, Chen Ling-Tong, Li Jing, Li Fei

Primary Institution: China University of Mining and Technology

Hypothesis

Chronic administration of nonylphenol affects the expression of inflammation-related genes in the brains of mice.

Conclusion

Chronic exposure to nonylphenol increases the expression of inflammatory enzymes in the mouse brain, suggesting potential neurotoxicity.

Supporting Evidence

  • Nonylphenol significantly increased the expression of iNOS and COX-2 in the mouse brain.
  • The nitric oxide level was significantly higher at the highest dose of nonylphenol.
  • Chronic inflammation in the brain can lead to neurodegenerative disorders.

Takeaway

Giving mice a chemical called nonylphenol for a long time makes their brains show signs of inflammation, which could be harmful.

Methodology

Mice were given nonylphenol orally at different doses for 90 days, and brain inflammation markers were measured using biochemical and immunohistochemical methods.

Limitations

The study was conducted on a specific strain of mice, and results may not be generalizable to other species.

Participant Demographics

Young male Kun Ming mice, 4 weeks old.

Statistical Information

P-Value

0.001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3390/ijms9101977

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