Erowid Needs Your End-of-the-Year Support
We're an educational non-profit dedicated to providing a balanced
examination of psychoactive drugs and drug use--to reduce harms,
improve benefits, and support appropriate policies. The site is made
possible by $5, $10, and $50 donations from visitors. Please pitch in!

Erowid References Database

Hatzidimitriou G, McCann UD, Ricaurte GA. 
“Altered serotonin innervation patterns in the forebrain of monkeys treated with (+/-)3,4-methylenedioxymethamphetamine seven years previously: factors influencing abnormal recovery”. 
J Neurosci. 1999 Jun 15;19(12):5096-107.
Abstract
The recreational drug (+/-)3,4-methylenedioxymethamphetamine (MDMA, 'Ecstasy') is a potent and selective brain serotonin (5-HT) neurotoxin in animals and, possibly, in humans. The purpose of the present study was to determine whether brain 5-HT deficits persist in squirrel monkeys beyond the 18-month period studied previously and to identify factors that influence recovery of injured 5-HT axons. Seven years after treatment, abnormal brain 5-HT innervation patterns were still evident in MDMA-treated monkeys, although 5-HT deficits in some regions were less severe than those observed at 18 months. No loss of 5-HT nerve cell bodies in the rostral raphe nuclei was found, indicating that abnormal innervation patterns in MDMA-treated monkeys are not the result of loss of a particular 5-HT nerve cell group. Factors that influence recovery of 5-HT axons after MDMA injury are (1) the distance of the affected axon terminal field from the rostral raphe nuclei, (2) the degree of initial 5-HT axonal injury, and possibly (3) the proximity of damaged 5-HT axons to myelinated fiber tracts. Additional studies are needed to better understand these and other factors that influence the response of primate 5-HT neurons to MDMA injury and to determine whether the present findings generalize to humans who use MDMA for recreational purposes.
Submit Comment
[ Cite HTML ]



Erowid.org Plants & Drugs Mind & Spirit Freedom & Law Arts & Sciences Search About Erowid and Feedback Library & Bookstore Copyrights Memberships noref