Close X
Friday, November 1, 2024
ADVT 
Health & Fitness

Nicotine in e-cigarettes raises chronic bronchitis risk: Study

Darpan News Desk IANS, 07 Jun, 2019 06:57 PM

    E-cigarette vaping with nicotine not only hampers mucus clearance from the airways, but also increases the risk of chronic bronchitis, warn researchers.

    A single session of vaping can deliver more nicotine in the airways than smoking one cigarette, warned researchers in a study published in the American Journal of Respiratory and Critical Care Medicine.

    "The question was whether vape containing nicotine had negative effects on the ability to clear secretions from the airways similar to tobacco smoke," said Matthias Salathe, senior author of the study and Professor at the University of Kansas.

    The study's findings showed that vaping with nicotine impaired ciliary beat frequency, dehydrates airway fluid and made mucus more viscous or sticky.

    These changes make it more difficult for the bronchi, the main passageways to the lung, to defend themselves from infection and injury.

    "Vaping with nicotine is not harmless as commonly assumed by those who start vaping. At the very least, it increases the risk of chronic bronchitis," Salathe said.

    The researchers observed that exposing human airway cells to e-cigarette vapour containing nicotine resulted in a decreased ability to move mucus or phlegm across the surface. This phenomenon is called "mucociliary dysfunction."

    Mucociliary dysfunction is a feature of many lung diseases, including asthma, chronic obstructive pulmonary disease (COPD) and cystic fibrosis.

    For the study, the researchers tested the effects of nicotine-containing e-cigarette vapours on airway mucociliary function in differentiated human bronchial epithelial cells (HBECs) and sheep, whose airways mimic those of humans when exposed to e-cigarette vapour.

    The researchers concluded that nicotine produced these negative effects by stimulating the ion channel transient receptor potential ankyrin 1 (TRPA1). Blocking TRPA1 reduced the effects of nicotine on clearance in both human cells in culture and in the sheep.

    MORE Health & Fitness ARTICLES

    After-office-hour emails could ruin people's personal lives

    After-office-hour emails could ruin people's personal lives
    People who receive emails from their superiors or clients at home after a tiring day at work run the risk of their personal lives being affected critically, a new study shows.

    After-office-hour emails could ruin people's personal lives

    UV Rays May Damage Skin Hours After Sun Exposure

    UV Rays May Damage Skin Hours After Sun Exposure
    Would we need a sunscreen for the night? Yes, we might because much of the damage that ultraviolet radiation (UV) does to skin occurs hours after sun exposure, say researchers, including one of Indian-origin.

    UV Rays May Damage Skin Hours After Sun Exposure

    Know How Much Sleep You Really Need

    Know How Much Sleep You Really Need
    Examining health consequences of too much or too little sleep, an expert panel convened by the US National Sleep Foundation has made new age-based recommendations on how much sleep people need.

    Know How Much Sleep You Really Need

    Avoid Supplements, Pick Foods High On Omega-3

    Avoid Supplements, Pick Foods High On Omega-3
    Our body needs essential fatty acids like Omega-3, but since it cannot make them on its own, it's vital to consume the ‘good fats’ through food.

    Avoid Supplements, Pick Foods High On Omega-3

    Science Probes Whether Milk Does A Body Good As Milk Industry Fights 'Naysayers'

    Science Probes Whether Milk Does A Body Good As Milk Industry Fights 'Naysayers'
    NEW YORK — Embattled milk producers launched a social media campaign this week to rebuild public confidence in the health benefits of their product. But how healthy is it?

    Science Probes Whether Milk Does A Body Good As Milk Industry Fights 'Naysayers'

    Easy Moves To Get A Tight Tummy

    Easy Moves To Get A Tight Tummy
    In search of a foolproof method to tighten your abs? Learn the right moves. Celebrity trainer Tracy Anderson has shared details of moves that can help one in getting a tight tummy,

    Easy Moves To Get A Tight Tummy