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Official Report: Smoking Weed is Not a Major Cancer Risk!

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Official Report: Smoking Weed is Not a Major Cancer Risk!

Postby AspirinE » Oct 27th, '05, 14:28

http://news.yahoo.com/s/nm/20051026/hl_nm/pot_cancer_dc
Pot not a major cancer risk: report
Wed Oct 26,12:29 PM ET

NEW YORK (Reuters Health) -- Although both marijuana and tobacco smoke are packed with cancer-causing chemicals, other qualities of marijuana seem to keep it from promoting lung cancer, according to a new report.

The difference rests in the often opposing actions of the nicotine in tobacco and the active ingredient, THC, in marijuana, says Dr. Robert Melamede of the University of Colorado in Colorado Springs.

He reviewed the scientific evidence supporting this contention in a recent issue of Harm Reduction Journal.

Whereas nicotine has several effects that promote lung and other types of cancer, THC acts in ways that counter the cancer-causing chemicals in marijuana smoke, Melamede explained in an interview with Reuters Health.

"THC turns down the carcinogenic potential," he said.

For example, lab research indicates that nicotine activates a body enzyme that converts certain chemicals in both tobacco and marijuana smoke into cancer-promoting form. In contrast, studies in mice suggest that THC blocks this enzyme activity.

Another key difference, Melamede said, is in the immune system effects of tobacco and marijuana. Smoke sends irritants into the respiratory system that trigger an immune-regulated inflammatory response, which involves the generation of potentially cell-damaging substances called free radicals. These particles are believed to contribute to a range of diseases, including cancer.

But cannabinoids -- both those found in marijuana and the versions found naturally in the body -- have been shown to dial down this inflammatory response, Melamede explained.

Another difference between tobacco and marijuana smoking, he said, has to do with cells that line the respiratory tract. While these cells have receptors that act as docks for nicotine, similar receptors for THC and other cannabinoids have not been found.

Nicotine, Melamede said, appears to keep these cells from committing "suicide" when they are genetically damaged, by smoking, for instance. When such cells do not kill themselves off, they are free to progress into tumors.

THC, however, does not appear to act this way in the respiratory tract -- though, in the brain, where there are cannabinoid receptors, it may have the beneficial effect of protecting cells from death when they are damaged from an injury or stroke, according to Melamede.

All of this, he said, fits in with population studies that have failed to link marijuana smoking with a higher risk of lung cancer -- though there is evidence that pot users have more respiratory problems, such as chronic cough and frequent respiratory infections.

If marijuana does not promote lung cancer, that could factor into the ongoing debate over so-called medical marijuana. Melamede said he believes "marijuana has loads of medicinal value," for everything from multiple sclerosis, to the chronic pain of arthritis, to nausea caused by cancer treatment.

U.S. government officials, however, maintain that the evidence for medical marijuana is not there. Ten states allow people to use marijuana with a doctor's prescription, but the Supreme Court has ruled that federal law trumps state law. :) :) :) :) :) :)
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Postby Hunneh_Buns » Oct 27th, '05, 14:39

I saw this on the news once, it shocked me. Props :)
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Postby Vengeance » Oct 28th, '05, 13:37

fukinhell. guess i can smoke all i want then :smoking:
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Postby j_shady » Oct 28th, '05, 16:35

yeah i've read this one too haha..fuck i'ma keep rollin my shit then
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"I never bow down, and never say doubt/To whom it may concern and whom so ever may try/i'm forever westside and the feather-weight dies/Tell em take ya best shot gon get yourself hot/cus I yelled Bankhead and you felt left out
I ain't mention yo name thats what all this bout"
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Postby green_lantern » Oct 29th, '05, 07:19

tobacco sucks
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Postby BlaqReaper » Oct 29th, '05, 08:30

I'm sure marijuana has other bad effects besides cancer. I mean...driving 100 mph into a brick wall doesn't give cancer, but that doesn't mean someone will try it :D .
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Postby j_shady » Oct 30th, '05, 04:56

yeah when i was heavy into smoking weed i'd forget shit that i knew 2-3 yrs before...plus you eat alot when youre on it, thats how i got big, but i hardly do it now..i stopped smoking cigarettes :D
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"I never bow down, and never say doubt/To whom it may concern and whom so ever may try/i'm forever westside and the feather-weight dies/Tell em take ya best shot gon get yourself hot/cus I yelled Bankhead and you felt left out
I ain't mention yo name thats what all this bout"
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Postby stealth » Oct 30th, '05, 05:35

Fuck the police, smoke weed every day
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Postby shady24/7 » Oct 30th, '05, 08:31

weed for ever
and for ever high
These shoulders hold up so much
They won't budge, I'll never fall or fold up
even if my collar bones crush
or crumble, I will never slip or stumble
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Postby Shadyluva » Oct 30th, '05, 17:51

i still think netype of smoking is bad, second- had smoking remember [-X
=]
lifee is GREAT
=]
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Postby j_shady » Oct 31st, '05, 07:36

yeah second hand is the worse..my friends and i were hot boxing a car one time and after the blunt was gone they decided to light up stoges(ciagrettes)..shit i couldnt breathe so i stepped out to get some fresh air...felt hella good to breathe in
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"I never bow down, and never say doubt/To whom it may concern and whom so ever may try/i'm forever westside and the feather-weight dies/Tell em take ya best shot gon get yourself hot/cus I yelled Bankhead and you felt left out
I ain't mention yo name thats what all this bout"
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Postby Cartman » Oct 31st, '05, 17:13

Propz dude - so what yall waitin for - lets go roll one! :smoking:
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Postby niknacks » Nov 2nd, '05, 11:08

hell yea blaze that shit up. Yo it may be still bad for you, but I went in knowing that. Fuck roll it up ne way
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my noodle is cockadoodle
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Postby SNaKe » Nov 4th, '05, 11:30

Blaze the fuckin weed man.
Smoke Weed Every Day.. :smoking:
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Postby ShadyRox » Nov 7th, '05, 01:36

its still bad and I could care less. good info for those who do i gess tho.
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