loading
Home   |   News   |  

Studies of Sun Yat -sen University found new evidence: Electronic cigarette damage to the respiratory system is less than cigarettes

Studies of Sun Yat -sen University found new evidence: Electronic cigarette damage to the respiratory system is less than cigarettes

2022-10-10

New Consumer Report, October 9th news, on October 8th, the research team of the School of Pharmacy of Sun Yat -sen University in the core journal of the global poison and science "" Archives of Toxicology ") pointed out that in the same nicotine dose The harm of electronic flue gas solution to the respiratory system is less than cigarettes.


The impact of electronic cigarettes and cigarettes on health is a heated discussion in the field of public health in recent years. In this study, the research team of Sun Yat -sen University for the first time compared the effects of cigarettes and electronic cigarettes on mice, the inflammatory factor, and protein expression under the same nicotine content, filling the scientific gaps in related fields.


Researchers chose RELX Yue Watermelon -flavored electronic cigarettes and a commercial marketing cigarette as samples. 32 mice were randomly divided into 4 groups, respectively in clean air, low -dose electronic flue gas solids, high -dose electronic flue gas solids, cigarettes, cigarettes, and cigarettes The smoke was exposed for 10 weeks and analyzed many indicators.


The pathological slices of pulmonary tissue show that the lung coefficient of mice in contact with cigarettes has increased significantly, and the tracheal morphology changes, suggesting that the respiratory system may occur. In contrast, the lung coefficient of the mouse that contacts the electronic cigarette has not changed significantly, and the tracheal shape has not changed.


The detection of lung function found that the exposure of cigarettes caused a number of lung function indicators of mice to be significantly abnormal, but the electronic cigarette group had only one indicator decreased. At the same time, pathological results show that cigarettes and electronic cigarettes can cause abnormal lungs in mice, but cigarettes are more obvious.


Serum inflammatory factor detection and transmission electron microscope finds that cigarettes and electronic cigarettes can cause airway inflammation, but cigarettes are more harmful. Even with 2 times the nicotine content of cigarettes, the pathological damage caused by e -cigarettes to mouse trachea is smaller.



Finally, the researchers also analyzed protein group studies on mice lung tissue. The results showed that the differential protein changes caused by cigarettes were more concentrated in inflammatory pathways, while electronic cigarettes caused less abnormal expression, and the impact on the inflammatory signal pathway was less.


Researchers said that the research results clearly showed that the exposure of cigarettes and electronic cigarettes with large inhalation doses was harmful to the respiratory system. But under the same nicotine dose, the harm of electronic flue gas solution to the respiratory system is less than cigarettes.


Because there is no need to burn, electronic cigarettes do not produce tar, so they are generally regarded as a substitute for reducing hazards by the medical community. The US Centers for Disease Control and Prevention (CDC) clearly states on its official website that the transfer of electronic cigarettes from cigarettes or other combustible tobacco products may have potential benefits to adult smokers who are not pregnant.


However, due to the short period of time, the research on electronic cigarettes is not sufficient. In recent years, many scientific research institutions and public health organizations have focused on the potential impact of electronic cigarettes.


In January 2022, researchers of the US Food and Drug Administration (FDA) published a paper published in "Tobacco Control" pointed out that electronic cigarettes are less harmful than cigarettes. After smokers switch to electronic cigarettes, many carcinogens in their urine are in many carcinogens. The level of biomarkers will decrease, up to 95%.


In September 2022, the "Eighth Independent Report of Nicotine Electronic Cigarette Research" released by the British Ministry of Health and Social Health pointed out that compared with cigarettes, the exposure of the harmful substances caused by electronic cigarettes is significantly reduced, which can significantly reduce the cancer, respiratory system and respiratory system and Cardiovascular disease risk -related biomarkers contact.


The research team of Sun Yat -sen University stated that this study comprehensively and systematically analyzed the relative safety of electronic cigarettes at the animal level. It is hoped that more clinical research will be carried out in the future to objectively evaluate the long -term impact of electronic cigarettes.


Chat Online
Chat Online
Leave Your Message inputting...
Sign in with: