Healthy and Drug Abuser Brains,PET Scans

Numéro d’image : 12037082
Healthy and Drug Abuser Brains,PET Scans
Decreased dopamine transporters in a methamphetamine abuser. In low doses,methamphetamine can cause an elevated mood and increase alertness,concentration,and energy in fatigued individuals. At higher doses,it can induce psychosis,rhabdomyolysis and cerebral hemorrhage. Methamphetamine is known to have a high potential for abuse and addiction. Recreational use of methamphetamine may result in psychosis or lead to post-withdrawal syndrome,a withdrawal syndrome that can persist for months beyond the typical withdrawal period. Unlike amphetamine,methamphetamine is neurotoxic to humans,damaging both dopamine and serotonin neurons in the CNS. There is evidence that methamphetamine causes brain damage from long term use in humans; this damage includes adverse changes in brain structure and function,such as reductions in grey matter volume in several brain regions and adverse changes in markers of metabolic integrity. Positron emission tomography
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