J
Ji-doo
Guest
Maddict: Il me semble avoir lu des trucs contradictoires là-dessus...je chercherai plus dès que j'ai le temps !
EDIT: sur Drugs-forum (ouais je sais, y'a mieux comme source ^^) ils parlent de la neurotoxicité des antagonist NMDA et l'étude d'Olney est abordée...
Source: http://www.drugs-forum.com/forum/showwiki.php?title=NMDA_Antagonist_Neurotoxicity
Donc irréversibles d'après l'étude..
Mais plus loin:
Bon, y'a pas de preuves non plus, c'est des spéculations.
Donc c'est pas clair pour l'instant (va falloir d'autres études quoi).[align=left]
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EDIT: sur Drugs-forum (ouais je sais, y'a mieux comme source ^^) ils parlent de la neurotoxicité des antagonist NMDA et l'étude d'Olney est abordée...
In 1989, the psychiatrist John W. Olney conducted a study in which high doses of the potent NMDA receptor antagonist dizocilpine (MK-801) have been injected into rats. A few hours after injection, the rats were killed and their brains examined. This and further studies (in which other dissociative drugs and possible neuroprotective drugs have been tested) have proven that high doses of NMDA receptor antagonists cause irreversible lesions in the brain. These were called Olney's Lesions, after their discoverer.
Source: http://www.drugs-forum.com/forum/showwiki.php?title=NMDA_Antagonist_Neurotoxicity
Donc irréversibles d'après l'étude..
Mais plus loin:
Although it was neither proved nor disproved that NAN can occur in humans, most circumstantial and anecdotal evidence suggests that the damage done by heavy dissociative use is almost completely reversible, by abstaining from dissociative drugs. Considering that NAN means permanent, irreversible brain damage, the dissociative induced cognitive impairment is probably a result of another mechanism or more than one mechanisms. Another possibility is that phenomena similar to NAN can occur in humans, only not causing massive neuron death like in rats. This could possibly explain the irreversible cognitive impairment reported by a small number of heavy DXM users.
Bon, y'a pas de preuves non plus, c'est des spéculations.
Donc c'est pas clair pour l'instant (va falloir d'autres études quoi).[align=left]
[/align]