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American Focus > Blog > Health and Wellness > Researchers find e-cigarette use disrupts the nasal microbiome
Health and Wellness

Researchers find e-cigarette use disrupts the nasal microbiome

Last updated: August 26, 2024 6:35 pm
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Researchers find e-cigarette use disrupts the nasal microbiome
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The nose is not just a sense organ for smelling; it also serves as a protective barrier for our respiratory tract. The balance of beneficial bacteria in the nasal microbiome is crucial for preventing harmful pathogens from causing respiratory illnesses. However, this delicate balance can be disrupted, leading to dysbiosis and an increased risk of respiratory diseases such as asthma and chronic obstructive pulmonary disease.

Recent research conducted by Elise Hickman, Ph.D., under the supervision of inhalation toxicologist Ilona Jaspers, Ph.D., at the UNC Center for Environmental Medicine, Asthma, and Lung Biology, has shed light on how e-cigarette and cigarette use can impact the nasal microbiome. Published in Nicotine and Tobacco Research, their study highlights the immunological implications of vaping and smoking on the nasal microbiome.

The study revealed that the composition of the nasal microbiome differs based on factors such as sex, type of tobacco product used (e-cigarette or cigarettes), and the level of nicotine in the bloodstream. E-cigarette use was found to dysregulate the immune system in the nasal microbiome, leading to an imbalance in the respiratory microbiome.

Previous research from the Jaspers lab has shown that e-cigarette use can weaken the immune system in the nose, making individuals more susceptible to viral infections like influenza. To further investigate the impact of e-cigarette and cigarette use on the nasal microbiome, researchers collected and analyzed nasal epithelial lining fluid samples from non-smokers, e-cigarette users, and smokers. Genetic sequencing revealed significant differences in the types and quantities of bacteria present in the nasal microbiome of each group.

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Notably, harmful bacteria like Staphylococcus aureus were found in higher numbers in both e-cigarette users and smokers compared to non-smokers. On the other hand, beneficial bacteria like Lactobacillus iners, which can protect against respiratory diseases, were more prevalent in smokers than non-smokers.

Interestingly, the study also found variations in the nasal microbiomes of male and female e-cigarette users, as well as differences based on the levels of cotinine, a metabolite of nicotine, in the participants. These findings suggest a unique, sex-dependent immune dysfunction associated with e-cigarette use in the nasal mucosa.

The research underscores the growing body of evidence linking e-cigarette use to respiratory health issues. Considering the connection between changes in the nasal microbiome and lung health, the dysbiosis observed in e-cigarette users’ noses raises concerns about the potential impact on respiratory health.

In conclusion, this study contributes valuable insights into the effects of e-cigarette and cigarette use on the nasal microbiome and underscores the importance of further research to understand the implications for respiratory health. By unraveling the intricate relationship between tobacco use and the nasal microbiome, we can better protect and promote respiratory well-being.

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