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NIDA Notes Articles: Stimulants

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Disruption of Neuron Production in Adult Rats Increases Cocaine Taking

November 2011
Drug abuse may diminish production of new neurons in the brain’s hippocampus and thereby increase vulnerability to drug addiction.

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Medication Reduces Rats' Return to Methamphetamine Seeking

July 2011

Reports on a new medication strategy under investigated in animal studies that shows promise for preventing relapse to drug abuse.

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Drugs Contribute to High Rates of Sexually Transmitted Diseases Among Juvenile Offenders

July 2011

Describe a study of newly arrested youths where researchers found correlations between the youths' prevalence of these sexually transmitted diseases and their cocaine and marijuana use.

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Methamphetamine Abuse Undermines Dental Health

July 2011
Describes research that sheds light on the correlation between increased dental disease and methamphetamine abuse.

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Cocaine Alters Production of Hundreds of Proteins

March 2011

Describes research findings that show that chronic cocaine abuse may change the production of many proteins in the neurons of the brain’s reward system, aiding in our understanding how the drug causes addiction.

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Deep Brain Stimulation Reduces Rats' Cocaine Seeking

December 2010
Describes results from an animal study involving deep brain stimulation that holds promise as a therapy for severe cocaine addiction.

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Modafinil Normalizes Sleep During Early Cocaine Abstinence

December 2010
Describes a study investigating the effectiveness of modafinil in enhancing sleep among cocaine abusers who are currently abstinent.

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Cocaine Vaccine Helps Some Reduce Drug Abuse

December 2010

Reports on the results of a clinical trial that tested the effectiveness of a cocaine vaccine designed as a therapy for cocaine abuse and plans underway for a new study of 300 patients to confirm these results.

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Brain Adaptation May Dampen Effects of Cocaine

October 2010
Reports evidence that a cocaine-induced change in the structure of brain cells represents an adaptive response that may limit the drug’s impact.

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Brain Opioid Receptor Levels Predict Time to Cocaine Relapse

October 2010
Describes study findings revealing that cocaine abusers who maintain high levels of a certain receptor in their brain during early abstinence relapse sooner than abusers whose levels drop.

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