Effects of Chlorpyrifos and Stress on Mouse Brain
Author Information
Author(s): Lim Kian Loong, Tay Annie, Nadarajah Vishna Devi, Mitra Nilesh Kumar
Primary Institution: International Medical University
Hypothesis
How does dermal exposure to low doses of chlorpyrifos combined with swim stress affect GFAP expression in the hippocampus of adult mice?
Conclusion
Dermal exposure to low doses of chlorpyrifos increases GFAP expression, and when combined with stress, it can lead to neurotoxicity.
Supporting Evidence
- Chlorpyrifos exposure led to significant increases in GFAP expression.
- Swim stress combined with chlorpyrifos exposure resulted in reduced neuronal density.
- Serum cholinesterase levels were significantly decreased with chlorpyrifos exposure.
Takeaway
This study shows that a common pesticide can harm the brains of mice, especially when they are stressed.
Methodology
Male albino mice were divided into control and treatment groups, receiving dermal applications of chlorpyrifos and subjected to swim stress, followed by analysis of serum cholinesterase levels and GFAP expression.
Limitations
The study was limited to a short duration of exposure and a specific mouse strain, which may not represent all populations.
Participant Demographics
Male Swiss albino mice, 60 days old.
Statistical Information
P-Value
p < 0.05
Statistical Significance
p < 0.001
Digital Object Identifier (DOI)
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