Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Marijuana Abuse Affected by Genes and Environment
Yahoo News ^ | 10/08/04

Posted on 10/08/2004 2:43:56 PM PDT by Libloather

Marijuana Abuse Affected by Genes and Environment
17 minutes ago

NEW YORK (Reuters Health) - Previous research has established a moderate relationship between marijuana abuse and depressive disorders. Now researchers report that the association between marijuana use and major depression probably arises from a combination of shared genetic and environmental vulnerabilities.

Lead author Dr. Michael T. Lynskey and colleagues report the findings of their large study in the Archives of General Psychiatry.

To examine the role of genetics and shared childhood environment in the relationship between marijuana abuse and major depression, Lynskey, at the Washington University School of Medicine in St. Louis, and his team interviewed individuals enrolled in the Australian Twin Register, at around 30 years of age.

They identified 277 pairs in which one twin used marijuana while the other didn't. The odds of depression, suicidal thoughts and attempted suicide were 1.3 to 3.4 times more likely in the marijuana-using twin compared with the twin who was not a user. The strength of the association was higher in fraternal twins than identical twins

This latter finding "implies that shared or correlated genetic vulnerabilities make substantial contributions" to the association between marijuana use and depression, the authors report.

Depression onset before age 17 or early suicidal thoughts in fraternal twin pairs, but not identical pairs, was significantly associated with rates of marijuana dependence.

Altogether, these results suggest that "depression does not cause people to use (marijuana), or that (marijuana) use and dependence do not in themselves cause depression," Lynskey said in an interview with Reuters Health. "So from a clinical point of view, it is not necessarily the case that eliminating one of those will automatically get rid of the other."

In other words, he added, both problems "need to be addressed within the treatment setting."

SOURCE: Archives of General Psychiatry, October 2004.


TOPICS: Crime/Corruption; Culture/Society; Extended News; News/Current Events
KEYWORDS: abuse; affected; dope; environment; genes; marijuana; mentalhealth; pot; wodlist
...significantly associated with rates of marijuana dependence.

Almost sounds like it's addictive - no?

1 posted on 10/08/2004 2:43:56 PM PDT by Libloather
[ Post Reply | Private Reply | View Replies]

To: Libloather

Dang, that bums me out. Think I'll fire up a doobie...


2 posted on 10/08/2004 2:46:21 PM PDT by wvobiwan (Kerry/Edwards Foreign Policy Slogan: Accept our surrender or we'll sue!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Libloather
The odds of depression, suicidal thoughts and attempted suicide were 1.3 to 3.4 times more likely in the marijuana-using twin compared with the twin who was not a user.

Only the marijuana-using twin knows the pain of finding the 7-11 closed at three in the morning.

3 posted on 10/08/2004 2:46:38 PM PDT by dead (I've got my eye out for Mullah Omar.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: dead

Oh, man, bummer.


4 posted on 10/08/2004 2:47:42 PM PDT by Xenalyte (Lord, I apologize . . . and be with the starving pygmies in New Guinea amen.)
[ Post Reply | Private Reply | To 3 | View Replies]

To: Libloather
Previous research has established a moderate relationship between marijuana abuse and depressive disorders.

Hence the origin of the phrase,

"Dude, that's a bummer".

5 posted on 10/08/2004 2:47:49 PM PDT by glorgau
[ Post Reply | Private Reply | To 1 | View Replies]

To: dead

Heavens no! 'Ah feel his pain'.

Or the pain of losing your only lighter down the heater vent...!


6 posted on 10/08/2004 2:48:05 PM PDT by wvobiwan (Kerry/Edwards Foreign Policy Slogan: Accept our surrender or we'll sue!)
[ Post Reply | Private Reply | To 3 | View Replies]

To: wvobiwan

Life can be depressing. Some things just enhance it..

I guess the John Stewart character on 'Half Baked' would say:

"HAVE YOU EVER BEEN DEPRESSED?... HAVE YOU EVER BEEN DEPRESSED... ON WEED?!"


7 posted on 10/08/2004 2:50:39 PM PDT by Se7eN
[ Post Reply | Private Reply | To 6 | View Replies]

To: Libloather
Almost sounds like it's addictive - no

Read the words, if you are literate: Altogether, these results suggest that "depression does not cause people to use (marijuana), or that (marijuana) use and dependence do not in themselves cause depression," They are saying there is no correlation.

Does wearing blue polyester cause idiocy? Sure seems that way.

8 posted on 10/08/2004 3:06:22 PM PDT by eno_ (Freedom Lite, it's almost worth defending.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Libloather
Ambiguous article at best..

Author appears to be stoned..

9 posted on 10/08/2004 3:37:14 PM PDT by Drammach (Freedom; not just a job, it's an adventure..)
[ Post Reply | Private Reply | To 1 | View Replies]

To: eno_
What does 'rates of marijuana dependence' mean?

Almost sounds like it's addictive - no?

10 posted on 10/08/2004 5:54:37 PM PDT by Libloather (Effin' Kerry's foreign policy doesn't pass the Global Smell Test...)
[ Post Reply | Private Reply | To 8 | View Replies]

To: Libloather
It's not bad enough that mom dressed us alike, we have to be the subject of every darn study...pass the twinkies please.
11 posted on 10/08/2004 5:54:53 PM PDT by twin2
[ Post Reply | Private Reply | To 1 | View Replies]

To: Libloather

You can become psychologically dependent on almost anything. This is the very very thin thread that drug "treatment" for marijuana users hangs on to.

However, unlike caffeine, nicotine, opiates, alcohol, etc. marijuana is not physically addictive.

How many drinks have you had today? I bet I can find someone who thinks you ought to be remanded into involuntary treatment.


12 posted on 10/09/2004 4:12:14 AM PDT by eno_ (Freedom Lite, it's almost worth defending.)
[ Post Reply | Private Reply | To 10 | View Replies]

To: Libloather
Almost sounds like it's addictive - no?

It does form dependency in some users ... though less often than does alcohol.

13 posted on 10/09/2004 10:39:31 AM PDT by Know your rights (The modern enlightened liberal doesn't care what you believe as long as you don't really believe it.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: glorgau

Read on:

"The strength of the association was higher in fraternal twins than identical twins.

"This latter finding "implies that shared or correlated genetic vulnerabilities make substantial contributions" to the association between marijuana use and depression [...]

"Altogether, these results suggest that '[...] (marijuana) use and dependence do not in themselves cause depression,'"


14 posted on 10/09/2004 10:41:59 AM PDT by Know your rights (The modern enlightened liberal doesn't care what you believe as long as you don't really believe it.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: wvobiwan

Quit 'Bogarting' that thing, would you?


15 posted on 10/09/2004 10:45:48 AM PDT by pageonetoo (I could name them, but you'll spot their posts soon enough.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: eno_
...marijuana is not physically addictive.

Never said it was. The article does mention 'rates of marijuana dependence', though. You seem to have a problem addressing it. Are you a doctor? What medical background or experience, other than maybe the occasional tetanus shot, do you have?

(Oh, and your insults and tiny diversions only add to the experience of watching you attempt to explain what little opinion you seem to hold...)

16 posted on 10/09/2004 2:13:25 PM PDT by Libloather (Effin' Kerry's foreign policy doesn't pass the Global Smell Test...)
[ Post Reply | Private Reply | To 12 | View Replies]

To: eno_
You can become psychologically dependent on almost anything.

Anything that gives you pleasure can be psychologically addicting. I'm addicted to sex, golf, piano playing, chocolate, driving my convertible. I have to have all these to survive.

17 posted on 10/12/2004 1:01:48 PM PDT by bird4four4
[ Post Reply | Private Reply | To 12 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson