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Smoking tobacco and vaping may put healthy young people at risk of severe COVID illness

Dr. Kamal Kant KohliWritten by Dr. Kamal Kant Kohli Published On 2023-02-14T11:30:35+05:30  |  Updated On 14 Feb 2023 7:01 AM GMT
Smoking tobacco and vaping may put healthy young people at risk of severe COVID illness
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UCLA researchers have found in a new study that smoking tobacco and vaping electronic cigarettes may increase healthy young people’s risk for developing severe COVID illness. This is among the first studies to find that not only smoking tobacco, but also vaping, may predispose people to increased inflammation and future development of severe COVID-19 and the lingering...

UCLA researchers have found in a new study that smoking tobacco and vaping electronic cigarettes may increase healthy young people’s risk for developing severe COVID illness.

This is among the first studies to find that not only smoking tobacco, but also vaping, may predispose people to increased inflammation and future development of severe COVID-19 and the lingering cardiovascular complications that can occur after initial illness from the virus, said Dr. Theodoros Kelesidis, the study’s lead author.

“The key message is that smoking is the worst, but vaping is not innocent,” said Kelesidis, associate professor of medicine in the division of infectious diseases at the David Geffen School of Medicine at UCLA. “This has been shown for many lung diseases but not for COVID. It was a quite interesting and novel finding that vaping changed the levels of key proteins that the virus uses to replicate.”

The study will be published Feb.9 in the peer-reviewed Journal of Molecular Medicine.

The investigators examined plasma collected before the pandemic from 45 non-smokers, 30 electronic cigarette vapers, and 29 tobacco cigarette smokers, testing it to measure levels of since-identified proteins that SARS-CoV-2, the virus at the heart of the pandemic, needs in order to replicate. These proteins are ACE2, furin, Ang II, Ang 1–7, IL-6R, sCD163, L-selectin. The three latter proteins are collectively regulated in cells by a protein known as ADAM17.

They found that plasma from healthy young people who smoke tobacco or vape had increased levels of furin, sCD163, and L-selectin compared to non-smokers. These data suggest that there may be increased activity of the proteins furin and ADAM17 in the immune cells as well as surface cells, such as those lining the lungs, in healthy young smokers and vapers.

“E-cigarette vapers may be at higher risk than non-smokers of developing infections and inflammatory disorders of the lungs,” Kelesidis said. “Electronic cigarettes are not harmless and should be used for only the shortest time possible in smoking cessation, and not at all by nonsmokers.”

Limitations include the small size of the study, which suggests the need for research with a larger sample size; the reliance on testing blood plasma rather than tissue samples such as lung cells that are believed to be affected by smoking and vaping, which also warrants deeper research; and a lack of evidence of the role that the ADAM17 proteins may play in severe COVID illness among non-smokers.

Reference:

Kelesidis, T., Sharma, M., Satta, S. et al. Ectodomain shedding of proteins important for SARS-CoV-2 pathogenesis in plasma of tobacco cigarette smokers compared to electronic cigarette vapers: a cross-sectional study. J Mol Med (2023). https://doi.org/10.1007/s00109-023-02286-8

Journal of Molecular MedicineCOVID-19vaping electronic cigarettesinfectious diseasesSARS-CoV-2
Source : Journal of Molecular Medicine
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Before Joining Medical Dialogues, he has served at important positions in the medical industry in India including as the Hony. Secretary of the Delhi Medical Association as well as the chairman of Anti-Quackery Committee in Delhi and worked with other Medical Councils in India. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

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