Studies: Tobacco and Pot Offer Almost Identical 2-Fold Testicular Cancer Risk
September 11, 2012 2:07 PM
comment(s) - last by
Past studies have indicated Cannabis to have anti-carcinogenic properties
Presidents Bill Clinton, George W. Bush, and Barack Obama all used it (although Clinton did not inhale). Over 17 million Americans (appr. 5.5 percent of all Americans) use it a year, including one out of ever five college students [
]. And 50 percent of Americans now think it should be legal, according to Gallup polling [
]. But marijuana, since 1938, has been illegal in the U.S.
I. Marijuana and Tobacco Show Nearly Identical Testicular Cancer Risks
Amid the growing calls to legalize America's favorite
drug, comes a study that's sure to draw mixed reactions. The research -- done by medical researchers at the University of Southern California -- suggests a correlation between smoking marijuana and testicular cancer.
Past studies have indicated there is no real correlation between alcohol -- one of America's most popular legal drugs -- and testicular cancer. However, studies have shown
[abstract] between smoking tobacco -- also a legal drug in the U.S. -- and testicular cancer. Current research has been unable to establish the method of causation for the tobacco-testicular cancer link.
Likewise, the study on marijuana users found a correlation between testicular cancer and use, but did not establish a causative route. The study suggests the body's
-- which is excited by compounds in marijuana -- may be involved in raising risks of this specific cancer.
Studies have shown smoking marijuana [Image Source: AFP]
The current study only examined smoking marijuana.
[abstract] have shown marijuana use (of any kind) lowers the risk of some cancers and
degenerative brain diseases like Alzheimer's
. Thus an important question going ahead is to examine whether alternative forms of consumption (e.g.
) offer the same testicular cancer risk.
So how much do marijuana and tobacco appear (correlation) to raise the risk of testicular cancer?
The 2007 study on tobacco reveals, "The synthesis of our results suggests that smoking about a pack a day for ∼20 years increases one’s risk of testicular cancer ∼2-fold."
Likewise, the marijuana study showed nearly identical results when age and ethnicity were held constant. Smokers of marijuana were twice as likely to get a particular kind of testicular cancer -- mixed-germ cell tumors. Mixed-germ cell tumors include the often lethal non-seminona tumors. The marijuana study relied on querying the drug use history of 292 healthy adult men and 163 adult men with cancers.
II. Causation -- as With Tobacco -- is Undetermined
While causation is unclear, the study's lead author Dr. Victoria Cortessis says the risks should be takens seriously. She
, "The group that is at risk for developing these tumors is overwhelmingly young men. They should be looking and paying attention to changes in their testicles anyway. The truth is, the vast majority of men who develop testicular germ-cell tumors survive them. There's still a small proportion that don't. Those guys tend to have non-seminonas, unfortunately. But also, non-seminomas require more extensive treatment, including radiation and chemotherapy."
"We're not concerned only with preventing non-seminomas so that the malignancy doesn't harm the man, but we're also concerned about the later health effects for men that may be related to the more-aggressive therapy."
Gonadoblastoma, a mixed-germ cell testicular tumor [Image Source: Nephron/Wikipedia]
Both the marijuana and tobacco studies have suggested that quitting use did not decrease risks among those who chronically used at some period in their life.
In the study,
[abstract] in the prestigious peer-reviewed journal
, she and her fellow researchers write:
The findings suggest that the potential cancer-causing effects of marijuana on testicular cells should be considered not only in personal decisions regarding recreational drug use, but also when marijuana and its derivatives are used for therapeutic purposes.
Marijuana is legal for medical use in
, including USC's home state of California, despite being illegal for medical use at a federal level.
III. Results are Immaterial to the Legalization Debate, but Are Important
Aside from the lack of understanding regarding the route of causation some marijuana advocates complain the findings are inconsistent with the past studies that showed that marijuana lowers the risk of certain kinds of cancers.
However, advocates need to realize that it is quite possible that marijuana lowers the risk of some cancers, while raising the risk of testicular cancer -- hence is the complex nature of the human body.
And while the study is receiving much scrutiny from the
perspective of legalization
, ultimately the study's impact on that issue should be immaterial. After all, the correlation observed is almost identical to that seen with tobacco smokers, yet tobacco is legal to use among those older than 18 in the U.S.
Smoking marijuana or tobacco likely raise you risk of testicular cancer, though each may provide some other benefits. [Image Source: Universal Pictures]
Part of the confusion with this particular study arises from that
almost entirely ignores the well-known (among researchers) tobacco-testicular cancer correlation, which is eerily similar to the marijuana correlation in terms of risk rate. Thus the media commentary have mistakenly focused heavily on whether this should be an obstacle to legalization, when the tobacco correlation and the legality of tobacco show that to be a debate that's essentially been decided already.
The study -- and two previous studies before it that showed a similar testicular cancer and marijuana correlation -- is important, though as it should help medical professionals, patients, and recreational users
make informed decisions
when choosing to use. The message seems clear -- know there's risks of lighting up your favorite smoke, whether it's legal or illegal.
(Of course past studies have also suggested that
cell phones are correlated
to fast-growing testicular cancers.)
This article is over a month old, voting and posting comments is disabled
RE: This just in: particulates + your lungs = bad
9/12/2012 7:16:37 AM
That doesnt make much sense. Wouldnt they be far more likely to ask for his suppliers, rather than his clients? Busting a few users is less impressive than busting a major supplier.
"We basically took a look at this situation and said, this is bullshit." -- Newegg Chief Legal Officer Lee Cheng's take on patent troll Soverain
RNP Platform: Ban Marijuana, Embryonic Stem Cells, Morning After Pill
September 2, 2012, 3:48 PM
GeoHot Gets Busted for Weed Possession on His Way to Speak at SXSW
March 15, 2012, 10:37 AM
Cannabinoid-1 Receptor Protects Brain from Rapid Degeneration
July 13, 2011, 11:35 AM
Study: Alcohol is Deadliest Drug, More Dangerous Than Heroin
November 1, 2010, 5:35 PM
Researchers Discover New Marijuana-chemical Receptor
August 9, 2010, 10:39 AM
Creationists are Mad About Google Doodle Depicting Evolution
November 24, 2015, 8:48 PM
DHS and TSA: Whoops, We Missed That 73 Airport Employees May be Terrorists
November 19, 2015, 2:16 PM
Star Wars Spinoff Film "Rogue One", Theme Park Attractions Announced
August 17, 2015, 12:20 PM
SpaceX Falcon 9's Seventh Supply Mission to ISS Ends w/ Fiery Stage 1 Explosion
June 28, 2015, 1:10 PM
Cool Science Video: Glowing Millipede Prowls the Nevada Desert
May 18, 2015, 12:00 PM
Newly Discovered Costa Rican Glass Frog is Kermit's Doppelgänger
April 22, 2015, 11:26 AM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2016 DailyTech LLC. -
Terms, Conditions & Privacy Information