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Study Finds No Cancer-Marijuana Connection

 
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Ferre
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PostPosted: Wed Apr 30, 2008 11:54 pm    Post subject: Study Finds No Cancer-Marijuana Connection Reply with quote

An old, but still accurate article from the Washington Post

Quote:
By Marc Kaufman
Washington Post Staff Writer
Friday, May 26, 2006; Page A03

The largest study of its kind has unexpectedly concluded that smoking marijuana, even regularly and heavily, does not lead to lung cancer.

The new findings "were against our expectations," said Donald Tashkin of the University of California at Los Angeles, a pulmonologist who has studied marijuana for 30 years.

"We hypothesized that there would be a positive association between marijuana use and lung cancer, and that the association would be more positive with heavier use," he said. "What we found instead was no association at all, and even a suggestion of some protective effect."

Federal health and drug enforcement officials have widely used Tashkin's previous work on marijuana to make the case that the drug is dangerous. Tashkin said that while he still believes marijuana is potentially harmful, its cancer-causing effects appear to be of less concern than previously thought.

Earlier work established that marijuana does contain cancer-causing chemicals as potentially harmful as those in tobacco, he said. However, marijuana also contains the chemical THC, which he said may kill aging cells and keep them from becoming cancerous.

Tashkin's study, funded by the National Institutes of Health's National Institute on Drug Abuse, involved 1,200 people in Los Angeles who had lung, neck or head cancer and an additional 1,040 people without cancer matched by age, sex and neighborhood.

They were all asked about their lifetime use of marijuana, tobacco and alcohol. The heaviest marijuana smokers had lighted up more than 22,000 times, while moderately heavy usage was defined as smoking 11,000 to 22,000 marijuana cigarettes. Tashkin found that even the very heavy marijuana smokers showed no increased incidence of the three cancers studied.

"This is the largest case-control study ever done, and everyone had to fill out a very extensive questionnaire about marijuana use," he said. "Bias can creep into any research, but we controlled for as many confounding factors as we could, and so I believe these results have real meaning."

Tashkin's group at the David Geffen School of Medicine at UCLA had hypothesized that marijuana would raise the risk of cancer on the basis of earlier small human studies, lab studies of animals, and the fact that marijuana users inhale more deeply and generally hold smoke in their lungs longer than tobacco smokers -- exposing them to the dangerous chemicals for a longer time. In addition, Tashkin said, previous studies found that marijuana tar has 50 percent higher concentrations of chemicals linked to cancer than tobacco cigarette tar.

While no association between marijuana smoking and cancer was found, the study findings, presented to the American Thoracic Society International Conference this week, did find a 20-fold increase in lung cancer among people who smoked two or more packs of cigarettes a day.

The study was limited to people younger than 60 because those older than that were generally not exposed to marijuana in their youth, when it is most often tried.

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Brother Adam
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PostPosted: Thu May 01, 2008 3:42 am    Post subject: Reply with quote

Excellent. More proof! Cool
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Police officers acquitted for beating a 64 yr old man recently in New Orleans. In the words of their defense attorney "all he had to do was comply"....and they wouldn't have fractured his face.
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David
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PostPosted: Thu May 01, 2008 8:46 am    Post subject: Reply with quote

Quote:
The new findings "were against our expectations," said Donald Tashkin of the University of California at Los Angeles, a pulmonologist who has studied marijuana for 30 years.
He's been studying it for 30 years, what is this bullshit. What we need is a team who are dedicated, not someone who has a jpint every now and then. Surely it doesn't take 30 years, it make me laugh, it's as if they have only just found cannabis.

Quote:
"We hypothesized that there would be a positive association between marijuana use and lung cancer, and that the association would be more positive with heavier use," he said. "What we found instead was no association at all, and even a suggestion of some protective effect."
There they go again, making up words, Our hypothesis was. which is the same as 'we had a little think'.
Quote:

Tashkin said that while he still believes marijuana is potentially harmful, its cancer-causing effects appear to be of less concern than previously thought.
Don't you just love the English language. This highly paid intelligent pulmonologist who has studied marijuana for 30 year, thinks that cannabis might be dangerous, but what he thought and was totally wrong after studing it for 30 fucking years was that it caused cancer. Is this guy serious, who would listen to anyone who was so liberal with his findings. I can't believe he get paid.

Sorry, it makes me so angry, they beat around the bush, they can't find anything except 'it makes black people think they are white' so basically they just make things up, then when the push comes to a shove, they let the cat out of the bag with an added made up tale. I have been smoking for 30 years and I am not dead yet, my study says that there are a lot more hamful things out there that are taken for granted, we are the one's who are studying it and we are the ones who will decide if it was harmful or not.
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Brother Adam
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PostPosted: Sat May 03, 2008 1:24 am    Post subject: Reply with quote

No, you make a GREAT point. This imbecile got paid for THIRTY YEARS thinking it caused cancer, and lo and behold it doesn't. So, we employed this guy that doesn't know his ass from a hole in the ground for THIRTY YEARS only to find out he couldn't form a simply hypothesis and prove it?

Talk about a fleecing of the people. That's what's wrong in the world. Someone let an ignoramus like this guy have the funding for wtf ever....no wonder we don't find any cures!!!!
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-Brother Adam (we are all one family)

“Knowledge will forever govern ignorance; and a people who mean to be their own governors must arm themselves with the power which knowledge gives.”

-James Madison

Police officers acquitted for beating a 64 yr old man recently in New Orleans. In the words of their defense attorney "all he had to do was comply"....and they wouldn't have fractured his face.
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David
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PostPosted: Sat May 03, 2008 10:09 am    Post subject: Reply with quote

That's what really pees me off Adam, there is thousands spent each year on so called scientists to study cannabis, but in fact not to study cannabis but to find it's harmful affects. They use all the words in the english dictionary that basically mean bugger all, like: maybe, should, could, possibly. Not only those words but I'm sure they actually sit down with a dictionary and try to finds words interlectual words for, I've done bugger all for the last 3 years so, I haven't got a clue. Then come out with something so stupid like, I've studied and found nothing but contradictions so I had a little think and the government is right, it could be dangerous.

I have had enough of all shades of grey, everything is black and white. yes and no.

White is made up of every colour from red to violet, the whole world is made up of every colour and bang right in the center is green, thats what's more important, at the center of everything is green! Very Happy.

What about Lester Grinspoon, has anything he written been published and taken serious.
How can you be an expert at something you have never done. dunno
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Brother Adam
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PostPosted: Sun May 04, 2008 12:04 am    Post subject: Reply with quote

Heh...that's like saying I'm an expert observer of the pole vault, so let me in the olympics!! Laughing
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-Brother Adam (we are all one family)

“Knowledge will forever govern ignorance; and a people who mean to be their own governors must arm themselves with the power which knowledge gives.”

-James Madison

Police officers acquitted for beating a 64 yr old man recently in New Orleans. In the words of their defense attorney "all he had to do was comply"....and they wouldn't have fractured his face.
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