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MONDAY, NOVEMBER 23, 2009
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Study Links Cannabis to Testicular Cancer

THC may intercept cancer-fighting chemicals

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(Newser) – Cannabis use has been linked to a significant increase in the risk of developing testicular cancer, the Independent reports. Those who light up have a 70% higher risk of getting nonseminoma cancer—found in younger men—and the odds worsen with frequency and duration of use, the research has found. Some scientists dismiss the first-ever link between marijuana and the ailment, saying the study's sample size was too small.

Chronic use of the drug is known to reduce sperm quality and boost impotence, which has been previously linked to testicular cancer. The testes have THC receptors, and the study suggests cannabis mellows out a naturally produced anti-cancer chemical. Critics insist that testicular cancer—whose prevalence has doubled since 1979—affects only a tiny portion of the 3 million cannabis users.

The cancer risk increases with frequency and duration of use, researchers say.
The cancer risk increases with frequency and duration of use, researchers say.   (AP Photo/Alvaro Barrientos)
Men may increase their testicular cancer risk by 70% by smoking cannabis, a new study suggests.
Men may increase their testicular cancer risk by 70% by smoking cannabis, a new study suggests.   (AP Photo/Alvaro Barrientos)
Critics of the study say the bulk of marijuana users remain healthy despite their drug habit.
Critics of the study say the bulk of marijuana users remain healthy despite their drug habit.   (AP Photo/Alvaro Barrientos)
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Puberty is a window of opportunity during which lifestyle or environmental factors can increase the risk of testicular cancer. - Janet Daling, a member of the study team

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12 comments
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Thinker
Feb 9, 09 6:53 AM CST
The study suggests that the incidence of cancer MIGHT be connected to cannibis use but only among users who start to smoke before age of 18. And even then, the incidence is VERY LOW and the number of subjects tested was VERY FEW. Reply
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IN RESPONSE:
upshotmatt
Feb 9, 09 8:09 AM CST
governments are just becoming scared of the growing pot-legalization movement
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AnnieOkie58
Feb 9, 09 10:10 AM CST
and what causes the cancer in men who have never smoked pot? Reply
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IN RESPONSE:
NutsInNY
Feb 9, 09 12:45 PM CST
Illogical thinking on the part of the women they know.
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Newser001
Feb 9, 09 10:15 AM CST
There were 2,109 cases of testicular cancer in Britain in 2005, 78 deaths. In 1975, 850 cases (the article fails to site deaths). Has detection / treatment changed in this time span? Unlike other cancers, it's most common in males, peak incidence, 20-40 years of age. Ironically, the study is based upon 369 men with testicular cancer... As Thinker pointed out, the sample size is NOT a rational foundation. Consider the annual death toll from prostate cancer in Britain has doubled in the past 20 years to 10,000 men. By the year 2018, it is set to overtake lung cancer and breast cancer to become the most commonly diagnosed male cancer. All cancers affecting both sexes are on the rise... The so-called cannabis relationship in the article shows just how prolific cannabis use is - how it's deemed norm... Spin it anyway you want, it's likely genetic, a byproduct attributed to processed foods, synthesized chemicals,petroleum / plastics, clothing-artificial fibers and dyes, housing, our environmental, etc... But the study does raise a particular concern to me... Potentially related to the amount of growth stimulus / control products, cycle increases used in cannabis cultivation; questioning exactly what is used to stimulate rapid growth, prodigious buds, increased THC, and subsequent use of anti-fungal, insecticides agents, and the like. What has happened to true organic production...? Also consider, synthetic THC, known as dronabinol, is available through prescription / script... Reply
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