Tag Archives: lung

Study: Smoking Marijuana Not Linked with Lung Damage – TIME

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“Marijuana does not impair lung function—at least not in the doses inhaled by the majority of users, according to the largest and longest study ever to consider the issue, which was published today in the Journal of the American Medical Association.

Researchers working on a long-term study of risk factors for cardiovascular disease (the Coronary Artery Risk Development in Young Adults or CARDIA study) tested the lung function of 5115 young adults over the course of 20 years, starting in 1985 when they were aged 18 to 30.

The study was “well conducted” and is “essentially confirmatory of the findings from several previous studies that have examined the association between marijuana smoking and lung function,” says Dr. Donald Tashkin, professor of medicine at UCLA and a leading scientist in the area. He was not associated with the new research.

“The major strengths of this study are that it included a far larger number of subjects followed for longer than any of these previous studies,” he adds.”

Read more: http://healthland.time.com/2012/01/10/study-smoking-marijuana-not-linked-with-lung-damage/

Pot Smoke Less Harmful Than Thought – ABCNews

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 “Occasional marijuana use does not appear to have long-term adverse effects on lung function, according to new research published in the Journal of the American Medical Association.

Researchers from the University of Alabama at Birmingham and University of California at San Francisco analyzed marijuana and tobacco use among 5,000 black and white men from the national database, CARDIA (Coronary Artery Risk Development in Young Adults study), which was intended to determine heart disease risk factors over a 20-year period.

Measuring participants’ lung function for air flow and lung volume five times throughout the study period, the researchers found that cigarette smokers saw lung function worsen throughout the 20-year period, but marijuana smokers did not. Only the heaviest pot smokers (more than 20 joints per month) showed decreased lung function throughout the study.

“The more typical amounts of marijuana use among Americans are occasional or low levels,” said Dr. Stefan Kertesz, assistant professor of medicine at the University of Alabama at Birmingham and principle investigator of the study. “From the standpoint of being a scientist, these data suggest that low and moderate range use of marijuana do not do long-term harm.””

Read more: http://abcnews.go.com/Health/smoking-pot-harm-lung-function-time/story?id=15331989

Study: No lung danger from casual pot smoking – CBSNews

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“Add one more data point to the decades-old debate over marijuana legalization: A new study concludes that casual pot smoking – up to one joint per day – does not affect the functioning of your lungs.”

 

“The study, published in the Jan. 11 edition of Journal of the American Medical Association, also offered up a nugget that likely will surprise many: Evidence points to slight increases in lung airflow rates and increases in lung volume from occasional marijuana use.”

Read more: http://www.cbsnews.com/8301-205_162-57356548/study-no-lung-danger-from-casual-pot-smoking/

No lung damage from marijuana: study – MSN

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“People who occasionally smoke marijuana do not suffer long-term lung damage the way cigarette smokers do, and may actually experience a slight improvement, a 20-year US study has revealed.”

“Since the research included more than 5,000 people over a long time span, the authors said it should help clear up some of the confusion about the risks of marijuana smoking, which is increasingly common in the United States.”

Read more: http://health.msn.co.nz/healthnews/8401956/no-lung-damage-from-marijuana-study

Smoking pot doesn’t hurt lung capacity, study shows – NBCNews

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“Periodically smoking marijuana doesn’t appear to hurt lung capacity, the largest study ever conducted on pot smokers has found.”

“This is a well-done study involving more subjects than in the past,” says Tashkin, who is not affiliated with the new study. “The public should take away it’s a confirmatory study, but larger and longer than previous studies demonstrating, once again, that smoking marijuana does not impair lung function, unlike tobacco.”

Read more: http://vitals.nbcnews.com/_news/2012/01/10/10098412-smoking-pot-doesnt-hurt-lung-capacity-study-shows?lite

Marijuana doesn’t appear to harm lung function, study finds – FoxNews

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“Smoking a joint once a week or a bit more apparently doesn’t harm the lungs, suggests a 20-year study that bolsters evidence that marijuana doesn’t do the kind of damage tobacco does…

The analyses showed pot didn’t appear to harm lung function, but cigarettes did…”
Read more: http://www.foxnews.com/health/2012/01/11/marijuana-doesnt-appear-to-harm-lung-function-study-finds/

Marijuana May Fight Lung Tumors – CBSNews

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“the active ingredient in marijuana may help combat lung cancer, new research suggests.

Moreover, other early research suggests the cannabis compound could help fight brain, prostate, and skin cancers as well, Preet says.

The finding builds on the recent discovery of the body’s own cannabinoid system, Preet says. Known as endocannabinoids, the natural cannabinoids stimulate appetite and control pain and inflammation.

THC seeks out, attaches to, and activates two specific endocannabinoids that are present in high amounts on lung cancer cells, Preet says. This revs up their natural anti-inflammatory properties. Inflammation can promote the growth and spread of cancer.

In the new study, the researchers first demonstrated that THC inhibited the growth and spread of cells from two different lung cancer cell lines and from patient lung tumors. Then, they injected THC into mice that had been implanted with human lung cancer cells. After three weeks, tumors shrank by about 50 percent, compared with tumors in untreated mice.”

 http://www.cbsnews.com/2100-500368_162-2696726.html

Marijuana Compound May Fight Lung Cancer – ABCNews

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“the active ingredient in pot may help fight lung cancer, new research shows.

Harvard University researchers have found that, in both laboratory and mouse studies, delta-tetrahydrocannabinol (THC) cuts tumor growth in half in common lung cancer while impeding the cancer’s ability to spread.

The compound “seems to have a suppressive effect on certain lines of cancer cells,” explained Dr. Len Horovitz, a pulmonary specialist at Lenox Hill Hospital in New York City.

According to the researchers, THC fights lung cancer by curbing epidermal growth factor (EGF), a molecule that promotes the growth and spread of particularly aggressive non-small cell lung cancers.”

http://abcnews.go.com/Health/Healthday/story?id=4506595