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Nicotine Is the New Wonder Drug
Fantastic Lad sends us to Wired for a story on the upside of nicotine. Researchers are developing drugs based on nicotine that may prove beneficial for brains, bowels, blood vessels and immune systems. "Nicotine acts on the acetylcholine receptors in the brain, stimulating and regulating the release of a slew of brain chemicals, including seratonin, dopamine and norepinephrine. Now drugs derived from nicotine and the research on nicotine receptors are in clinical trials for everything from helping to heal wounds, to depression, schizophrenia, Alzheimer's, Tourette Syndrome, ADHD, anger management and anxiety." A separate story talks about nicotine warding off Parkinson's disease.
Correct me if I'm wrong, but I was under the impression that while the nicotine makes quitting smoking hard to do, its health effect is not as great as that of the other substances in smoke such as tar. That's what gives you lung cancer, not the nicotine itself.
The separate story referred to on the lead article is not about nicotine, it's about smoking. My dissertation was based on showing that at least one substance that prevented Parkinson's was active in the brains of smokers despite 8+ hours of abstinence (reduction of plasma nicotine levels to less than 1% of usual). I tested smokers abstaining and after smoking either a normal cigarette or one made from denicotinized tobacco and found no difference between conditions or groups. Nicotine or lack thereof had nothing to do with the EEG signature of chronic increased dopamine levels compared to non-smokers (which was the study I did prior to my diss). This work, and that of the folks in the chemistry department that isolated and synthesized the hypothesized active component, was what was referred to in "Thank You For Smoking". And to preempt any conclusion jumping, this doesn't mean you should smoke. Knowing what the substance is (trimethyl naphthoquinone) and how it works (dopamine releaser and reuptake blocker as well as MAO inhibitor) means it or something that does the same thing can be developed and used without needing tobacco in the process.
The carbon monoxide effect has some merit too. CO in the blood scavenges excess hyperoxides, a source of oxidative stress which is a known cause of Parkinson's and other apparent autoimmune problems. As above, you don't need to smoke to get the effect and can obviously find other things to do the same job. They're called anti-oxidants.
Nicotine may well also have some other protective effect, but it doesn't prevent mitochondrial MPTP from turning into MPP+, a very potent neurotoxin that causes Parkinsonian apoptosis. To read up on the mechanism, look up the "frozen addicts". As an interesting aside, at least one of them was all but completely cured in weeks using injected stem cells before the fundies got ahold of the concept and strangled it.
"I may be synthetic, but I'm not stupid." -- Bishop 341-B
You should really know more about a subject before you go on spouting things like "You can be sure the tobacco industry is funding this research." A large portion of this funding is coming from the NIH and one of the main areas of study is smoking cessation. That most certainly does not benefit the tobacco companies. In addition, none of these studies would suggest a cigarette, dip or chew as the route of administration so once again no benefit. If anything, the pharm companies stand to gain while the tobacco companies stand to lose because the drugs in question are all synthetic nicotine like substances that are patented and solely under big pharma control.
By scientific literature, LSD is one of the SAFEST drugs known to man and completely non-addictive. Seriously (it stunned me too, I've been trying to find any valid finding of dangers for a while.) Flashbacks appear to be a psychological effect and rare, more like Viet Nam vet's flashbacks.
Here's some perspective in people averaging over 3 drinks of alcohol per day, PERMANENT deficiencies in problem solving, concentration and memory begin to appear. (This is a statistic, so it is probably people who binge drink on weekends that have the damage, not those who have a few every day. I'm sure you remember mornings when you had brain damage.)
The relapse rates for quitting smokers are on par with heroin addicts.