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DNA Damage as a Mechanistic Link between Air Pollution and Obesity?
Abdelaziz Ghanemi1,2, Mayumi Yoshioka2, Jonny St-Amand1,2
1Department of Molecular Medicine, Faculty of Medicine, Laval University, Québec, QC G1V 0A6, Canada.
Air pollution exposure may increase obesity risk by causing DNA damage. This damage can lead to inflammation and metabolic changes, contributing to weight gain independent of diet and exercise.
Area of Science:
- Environmental Health
- Molecular Biology
- Metabolic Disorders
Background:
- Obesity is a significant global health issue.
- Increased risk of obesity is linked to air pollution exposure.
- The precise molecular mechanisms connecting air pollution and obesity remain unclear.
Purpose of the Study:
- To propose a hypothesis linking air pollution to obesity via DNA damage.
- To explore the role of DNA damage in mediating air pollution's effect on obesity.
- To identify potential therapeutic and regulatory targets.
Main Methods:
- Hypothesis generation based on existing literature.
- Review of molecular pathways connecting environmental exposures to metabolic health.
- Conceptual framework development.
Main Results:
- Air pollution exposure can induce DNA damage.
- DNA damage triggers inflammation, oxidative stress, and metabolic dysfunction.
- These factors contribute to altered energy balance and obesity development.
Conclusions:
- DNA damage is a plausible mechanistic link between air pollution and obesity.
- This pathway offers a novel perspective beyond diet and physical activity.
- Findings may inform future research, therapies, and public health policies.
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