Navigation Links
Quitting smoking improves lung function considerably

For smokers with asthma, quitting smoking can improve lung function test scores by more than 15 percent in less than two months.

The findings appear in the second issue for July 2006 of the American Journal of Respiratory and Critical Care Medicine, published by the American Thoracic Society.

Neil C. Thomson, M.D., of the Departments of Respiratory Medicine and Immunology at the University of Glasgow, and seven associates studied 11 asthmatics who continued to smoke and 10 who quit for six weeks. After only one week of no cigarettes, the researchers said that the lung function test results of the non-smoking patients had improved to a "considerable degree."

"The improvement in lung function seen after smoking cessation was clinically significant," said Dr. Thomson. "It demonstrates that there is a reversible component to the harmful effects of smoking on the airways in asthma."

"The degree of improvement noted for smoking cessation far exceeds that of high-dose anti-inflammatory treatment, such as oral prednisolone, 40 mg daily for 2 weeks, which had no effect on lung function in smokers in our current study and in our previous work," he continued. "The improvement could be due to the removal of the acute bronchoconstrictor effects of cigarette smoke or a reduction in the proinflammatory effects of cigarette smoke on the airways."

In addition to the improved lung function test scores, the "quit" group also showed a reduction in sputum neutrophil counts when compared to those of smokers. Neutrophils are white blood cells (phagocytes) that engulf bacterial and fungal infections, along with ingesting foreign debris.

"Sputum neutrophil counts are reported to be increased in heavy smokers with asthma compared with nonsmokers with asthma," said Dr. Thomson.

The authors noted that in many developed countries, more than 20 percent of adults with asthma are active smokers, with particularly high rates of acute a sthmatics visiting hospital emergency rooms.

The smokers with asthma recruited for this study were aged 18 to 60 and had lung function score results of less than 85 percent of their predicted level. They all had a cigarette history of over 10-pack-years and smoked more than 10 cigarettes a day. The investigators saw no differences in the baseline physiological characteristics between the smoking group and those who quit.

Of the 10 subjects who successfully stopped smoking and completed the six-week study, five used nicotine patches, one employed acupuncture and four quit without any aid. The researchers believe that their findings highlight the importance of smoking cessation for adults with asthma.


'"/>

Source:American Thoracic Society


Related biology news :

1. Quitting smoking reduces risk of lung cancer mortality by 70 percent
2. Research shows smoking adds a decade to reproductive age of IVF patients
3. OHSU research shows vitamin C counteracts some negative impacts of smoking on unborn babies
4. Indias smoking gun: Dino-killing eruptions
5. Alcoholism, smoking and genetics among Plains American Indians
6. Both alcoholism and chronic smoking can damage the brains prefrontal cortex
7. Researchers test new way to quit smoking
8. Blood test predicts success of quitting smoking using the nicotine patch
9. Cigarette smoking impedes tendon-to-bone healing
10. High HPV concentrations combined with smoking significantly raise risks of cervical cancer
11. Heavy smoking cuts womens chance of pregnancy -- even with donated oocytes
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2017)... Trends, opportunities and forecast in this market ... (fingerprint, AFIS, iris recognition, facial recognition, hand geometry, vein ... use industry (government and law enforcement, commercial and retail, ... others), and by region ( North America ... Pacific , and the Rest of the World) ...
(Date:3/28/2017)... , March 28, 2017 ... Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video ... and Region - Global Forecast to 2022", published by ... in 2016 and is projected to reach USD 75.64 ... 2017 and 2022. The base year considered for the ...
(Date:3/24/2017)... , March 24, 2017 The Controller General ... Controller Mr. Abdulla Algeen have received the prestigious international IAIR ... Continue Reading ... ... picture) and Deputy Controller Abdulla Algeen (small picture on the right) have ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... 2017 International research firm Parks Associates announced today ... the TMA 2017 Annual Meeting , October 11 in ... home security market and how smart safety and security products impact the ... Parks Associates: Smart Home Devices: ... "The residential security market has experienced ...
(Date:10/9/2017)... , Oct. 9, 2017  BioTech Holdings announced ... by which its ProCell stem cell therapy prevents ... ischemia.  The Company, demonstrated that treatment with ProCell ... limbs saved as compared to standard bone marrow ... HGF resulted in reduction of therapeutic effect.  ...
(Date:10/9/2017)... ... October 09, 2017 , ... ... the medical journal, Epilepsia, Brain Sentinel’s SPEAC® System which uses the surface ... detecting generalized tonic-clonic seizures (GTCS) using surface electromyography (sEMG). The prospective multicenter ...
(Date:10/6/2017)... ... October 06, 2017 , ... The HealthTech Venture Network (HTVN) ... their fourth annual Conference where founders, investors, innovative practitioners and collaborators are invited ... competition showcasing early stage digital health and med tech companies. , This day-long ...
Breaking Biology Technology: