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Medical Consequences

Study Links Anabolic Steroids to Brain Changes in Adolescent Female Mice

Reports on an animal study finding that links anabolic steroids to brain changes in adolescent female mice, changes that can potentially lead to steroid abuse.

Long-Term Cocaine Abuse Linked With Impaired Heart Function

Summarizes research on the effects of long-term regular cocaine abuse on the cardiovascular system in African Americans.

Methamphetamine Restricts Fetal Growth, Increases Lethargy in Newborns

Reports on research showing that newborns whose mothers abused methamphetamine during pregnancy showed lower rates of fetal growth as compared with unexposed newborns.

Reduced Longevity Among Male Heroin Abusers, 1962-1997

Reviews the changing lifespan of heroin abusers as compared with that of the general U.S. population based on 1962-1997 data.

Morphine-Induced Immunosuppression, From Brain to Spleen

Reports on scientists who pinpointed the biochemical trigger from morphine that sets off a chain reaction that inhibits an immune cell that is key in fighting viruses and cancer.

Behavioral Problems Related to Maternal Smoking During Pregnancy Manifest Early in Childhood

Describes research providing evidence that maternal smoking during pregnancy contributes to behavioral conduct disorders among toddlers, school-age children, and teens.

Animal Studies Elaborate Toluene's Effects

Reports on evidence that toluene abuse can harm the nervous system and body, although scientists know relatively little about its specific actions.

Prenatal Nicotine Exposure May Damage Receptors That Influence Auditory Processing

Reports on a series of animal experiments indicating that nicotine exposure during prenatal fetal development damages a set of receptors in the brain's auditory processing center.

NIDA Initiates Pediatrics Symposium on Adolescent Health

Presents highlights of a symposium sponsored by NIDA in October 2008 to discuss adolescent brain and cognitive development and consider the impact of drug abuse on young people.

Extended Cocaine Exposure Impairs Cognitive Function in Rats

Reports an animal study presenting evidence that cocaine causes cognitive deficits that can persist well into abstinence.

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