Posted by karaS on October 25, 2004, at 13:30:27
In reply to Re: MAOIs decrease density of DA receptors » karaS, posted by King Vultan on October 25, 2004, at 7:59:30
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> > Todd,
> > If I read the abstract correctly, then the MAOI phenelzine was able to decrease density of D1 and D2 while selegiline was only able to decrease density of D1.
> >
> > I'm thinking that I should be trying an MAOI now.
> >
> > I think that my dopamine autoreceptor problem is a recent one (though I've suffered from depression for almost 30 years). The reason I say this is because I've only recently, within the last couple of years, gotten tired from exercising. It's not a fatigue that happens when I exercise. It's an hour or two later that I want to go to sleep. I had entertained the idea that it was an adrenal problem but I feel fine while exercising and shortly afterwards. I'm convinced now that the exercise boosts dopamine and then a while later (because of the DA receptors), I need to go to sleep.
> >
> > Then I'm left with why this has happened to me now. It could be that long term CFS has finally done this to me (per Dr. Jay Goldstein's theory) or possibly long-term SSRI usage. The latter also makes me question whether Cymbalta is a good medication for me now.
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> > Kara
> >
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> Actually, I think it said PEA (phenylethylamine) reduced D1 receptor density, and MAOIs decreased both D1 and D2. So there should not be a big difference in that regard between phenelzine and selegiline because both are MAOIs. I'm not sure what the best course is for you. I think I may have a dopamine autoreceptor problem also, but it seems clear that mine is manifesting itself differently than yours, probably because mine is in some other area of the brain and not necessarily in the nucleus accumbens.
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> Todd
Ok, if it's the PEA they were referring to then the selegiline should also do the trick. (I'm assuming it would have to be taken at nonselective dosage though.)I'm sure you know what your condition is between your research and your experience on various medications. I questioned you earlier about it so that I could understand from your response how we could have similar problems yet different symptoms. I find it hard to pin things down when there are several types of dopamine receptors and they occur in different areas of the brain. For instance, given that I have the hypersensitive DA receptors, you would expect that I would be anhedonic - but most of the time I'm not. I have no motivation to speak of, yet I'm usually able to find some joy in every day living. I wonder if it's possible through enough research to figure out which DA receptors one has a problem with and in which area(s) of the brain the problem exists. It probably carries no weight in terms of being able to correct the problem as the drugs we have now are not specific enough, are they?
Kara
poster:karaS
thread:406550
URL: http://www.dr-bob.org/babble/20041024/msgs/407067.html