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Iamasmoker
imachavel

Registered: 05/29/08
Posts: 636
Loc: Florida
Last seen: 16 years, 5 months

Re: so your freind has a genius chemistry idea

[Re: Iamasmoker]
#58118 - 06/15/08 08:04 PM (16 years, 6 months ago)

5-hydroxytryptophan (5-HTP) is the less well known cousin of serotonin (5-HT), one of the most important brain neurotransmitters. Tryptophan is first converted to 5-HTP in nerve cells by a vitamin B3 dependant enzyme, and then 5-HTP is converted to serotonin by a vitamin B6 dependant enzyme. Yet thanks to modern science, we can now take preformed 5-HTP, with many consequent advantages.

5-HTP passes through the blood brain barrier into the brain far more easily than tryptophan, and getting tryptophan through the blood brain barrier is the main bottleneck, which in many people leads to inadequate brain serotonin levels.

Also, 5-HTP is not used to make proteins in the body, while tryptophan is, so there isn’t competition by cells outside the brain for 5-HTP, as there is for the body’s scarce tryptophan supplies.

The body often uses tryptophan to make vitamin B3, at a very high cost of 60mg tryptophan to make just 1mg of B3! 5-HTP is not wasted to make vitamin B3.

Tryptophan can be broken down in the liver by pyrrolase, an enzyme that converts tryptophan to kynurenine and its metabolites, which can be mildly liver toxic at high levels. 5-HTP is not metabolized through this pathway.

Because of this, tryptophan supplementation especially in chronically stressed people should be kept to 1 gram (1000mg) per day or less, because the stress hormone cortisol activates pyrrolase.

The work of HM van Praag, SN Young, and others over the last 20 years, shows that serotonin is a key brain neurotransmitter involved in mood regulation (anti-anxiety and antidepressant), impulse control (inhibits aggression and obsessive compulsive disorders [OCD], pain control, and sleep).

Serotonin is also the precursor for our pineal gland’s production of melatonin. Human clinical studies show that 5-HTP is a far more efficient increaser of brain serotonin than tryptophan.

Further, when 5-HTP has been compared to tryptophan in human studies, 5-HTP has been a far more successful antidepressant, even when the tryptophan dosage used is 10 to 15 times higher than the 5-HTP dosage. Also, relapses back into depression are more common with tryptophan than with 5-HTP.

Unlike tryptophan, 5-HTP has been shown to increase brain dopamine and noradrenaline activity. These are two key mood and alertness regulating neurotransmitters, and when tyrosine, the amino-acid precursor for brain dopamine/ noradrenaline is given along with 5-HTP, the effect is even more powerful.

Van Praag’s and Young’s work suggests that 5-HTP is more likely to be effective for those suffering an anxious, agitated, aggressive, irritable depression and is rarely effective for those suffering from a severe, vegetative, total "blahs" type depression.

5-HTP may also be helpful in some cases of compulsive carbohydrate overeating, alcohol addiction and compulsive gambling (specific forms of OCD), as well as for insomnia.

Side effects of 5-HTP are occasional gastrointestinal upset, hypomania and euphoria. Even though 5-HTP is a natural substance normally made by the brain, without medical supervision prudence suggests limiting daily dosage to 100mg to 200mg, a dose shown to be effective in human clinical studies.

Research also shows that both tryptophan, and even more so 5-HTP, increase the activity of MAO inhibitor drugs, tricyclic antidepressants and selective serotonin inhibitor (SSRI) drugs, such as Prozac, Paxil and Zoloft. Therefore tryptophan and especially 5-HTP, should only be used by anyone taking any of these drugs ONLY with their prescribing physician’s consent and supervision.

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my rating of flavoraid:

b*tch*s shouldn't call me a retard..

and this shit... "I like to drink tea, lift weights, punch shit, have sex with girls"....

is gay as f**k

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