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Frontal Cortex Proteome Perturbation after Juvenile Rat Secondhand Smoke Exposure
Liam S C Lewis1, Pretal P Muldoon1, Pallavi P Pilaka1
1Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA, 23298, USA.
Proteomics
|November 27, 2018
Summary
Juvenile secondhand smoke exposure significantly alters proteins in the brain
Area of Science:
- Neuroscience
- Toxicology
- Proteomics
Background:
- Secondhand smoke is a global health concern for children.
- Epidemiological studies link secondhand smoke exposure to behavioral disorders, but biological causes are unclear.
- Research has primarily focused on prenatal exposure, neglecting juvenile risks.
Purpose of the Study:
- To characterize the neuroproteomic effects of juvenile secondhand smoke exposure on the brain.
- To investigate the impact on the prefrontal cortex, crucial for behavioral control.
Main Methods:
- Utilized ion mobility-enhanced data-independent mass spectrometry.
- Analyzed protein abundance changes in the juvenile orbital frontal cortex.
Main Results:
- Identified 800 significantly responsive proteins in the juvenile orbital frontal cortex.
- Observed a notable increase in 716 proteins.
- Detected significant perturbations in glutamatergic, GABAergic, and dopaminergic systems.
Conclusions:
- Juvenile secondhand smoke exposure disrupts brain function, particularly glutamatergic systems, potentially explaining behavioral disorders.
- The findings provide a detailed dataset for further research into environmental pollutant impacts on juvenile behavior.
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