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Live Science
Jennifer Welsh, LiveScience Staff Writer
Date: 14 December 2011 Time: 10:35 AM ET
With reader comments
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http://www.livescience.com/17465-designer-drugs-brain-ecstasy.html
Jennifer Welsh, LiveScience Staff Writer
Date: 14 December 2011 Time: 10:35 AM ET
With reader comments
Some "designer drugs" may be in a legal gray area, but their actions on the brain are similar to those of illegal drugs and could be just as dangerous, new research suggests.
The researchers studied four groups of rats, given one of four drugs: one of the two designer drugs, MDMA or methamphetamine. The rats were given doses equal to what an average user would take for their weight and body size. The team also analyzed how higher doses (as would happen in an overdose) and repeated doses impacted the rats' behaviors and brain activity. The researchers saw that the rats' brains reacted to the two designer drugs as they did MDMA, with increases in serotonin.
There were important differences between the drugs. Even weeks after exposure, serotonin levels in the brains of rats given MDMA had made only about a 50-percent recovery back to normal, while the brain chemistry of rats given mephedrone and methylone had returned to normal.
More...
http://www.livescience.com/17465-designer-drugs-brain-ecstasy.html
