Scientists have pinpointed a source of nicotine craving in the brain, opening up a new path towards drug treatments to help smokers kick their habit, according to a study released Sunday.
The gene controls a receptor -- an entry point on the surface of brain cells -- which responds to nicotine molecules.
With a normal version of this gene, anything more than a tiny dose of nicotine triggers a message to the brain which says, in effect, "stop consuming," the scientists found.
Larger doses unleash a sense of repulsion, similar to "bad-tasting food or drink," lead researcher Paul Kenny at the Scripps Research Institute in Florida said in an email exchange.
But the effect was quite different in mice in which a tiny sub-unit of the receptor, known as alpha5, had been knocked out.
The negative message was never sent -- and as a result, the rodents couldn't get enough of the potent drug.
A similar scenario occurs naturally in some humans, the researchers believe.
On the strength of the new findings, published online in the journal Nature, Kenny has received funding from the National Institute of Drug Abuse to design a new category of drugs.
"This study has important implications for new approaches to tobacco cessation said Jon Lindstrom, a neuroscientist at the University of Pennsylvania who has investigated other nicotine receptors in the brain and will participate in the follow-up research.
Nicotine study opens path for anti-smoking drug - Yahoo! News
how about they work on a drug to treat caffeine addiction next?
and frankly i think it's the other crap in cigs that makes them truly addictive, not nicotine. us vapers are vaping pretty much pure nicotine, if it's so addictive, why do alot of us literally seem to forget to vape? i know i have, it just strikes me out of the blue that i'm not vaping. why am i not shaking like a smack junkie if i go without vaping for a few hours if nicotine is so incredibly addictive yet an hour without a cig and i was ready to kill someone?
until you can treat the addiction to carbon monoxide, cyanide, etc, there will never be a magic pill to "cure" smokers.
i'm no scientist so i'm sure i have no idea what i'm talking about but my heart is in the right place lol.
The gene controls a receptor -- an entry point on the surface of brain cells -- which responds to nicotine molecules.
With a normal version of this gene, anything more than a tiny dose of nicotine triggers a message to the brain which says, in effect, "stop consuming," the scientists found.
Larger doses unleash a sense of repulsion, similar to "bad-tasting food or drink," lead researcher Paul Kenny at the Scripps Research Institute in Florida said in an email exchange.
But the effect was quite different in mice in which a tiny sub-unit of the receptor, known as alpha5, had been knocked out.
The negative message was never sent -- and as a result, the rodents couldn't get enough of the potent drug.
A similar scenario occurs naturally in some humans, the researchers believe.
On the strength of the new findings, published online in the journal Nature, Kenny has received funding from the National Institute of Drug Abuse to design a new category of drugs.
"This study has important implications for new approaches to tobacco cessation said Jon Lindstrom, a neuroscientist at the University of Pennsylvania who has investigated other nicotine receptors in the brain and will participate in the follow-up research.
Nicotine study opens path for anti-smoking drug - Yahoo! News
how about they work on a drug to treat caffeine addiction next?
and frankly i think it's the other crap in cigs that makes them truly addictive, not nicotine. us vapers are vaping pretty much pure nicotine, if it's so addictive, why do alot of us literally seem to forget to vape? i know i have, it just strikes me out of the blue that i'm not vaping. why am i not shaking like a smack junkie if i go without vaping for a few hours if nicotine is so incredibly addictive yet an hour without a cig and i was ready to kill someone?
until you can treat the addiction to carbon monoxide, cyanide, etc, there will never be a magic pill to "cure" smokers.
i'm no scientist so i'm sure i have no idea what i'm talking about but my heart is in the right place lol.
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