National Institute On Drug Abuse (nida)

This completed study looked at how genes influence addiction and related behaviors. Researchers collected blood samples and had 847 adults (healthy volunteers, smokers, drug users, and people with psychiatric disorders) complete questionnaires and computer tasks. The goal was to …

This study aims to create and improve cognitive tasks used during functional MRI scans to better understand how drugs affect the brain. It involves 525 healthy volunteers, including both drug users and non-users, aged 18 to 65. Participants perform tasks like memory tests or reac…

This study looked at how nicotine affects brain activity and genes in smokers and non-smokers. Researchers used brain scans and genetic tests to understand why some people find it harder to quit smoking. The goal was to find biological markers that could predict quitting success …

This study tested whether portable devices like PDAs and GPS units can give a more accurate picture of stress and drug use as it happens. About 373 adults in treatment for heroin addiction carried these devices for 16 weeks, recording drug use and stress levels. The goal was to s…

This completed study looked at how a person's neighborhood environment might influence drug use, addiction, and whether they seek treatment. Over 1,600 adults from Baltimore took part, including people who never used drugs, past users, and current users. Researchers collected hea…

This study explores the link between gut bacteria and alcohol use disorder (AUD). Researchers compared gut microbiota in three groups: current heavy drinkers with AUD, people with AUD who have been abstinent for at least 4 weeks, and healthy moderate drinkers. Participants provid…

This study tested whether a drug called SXC-2023 interacts with cocaine in the body. Nineteen adults who use cocaine but were not seeking treatment took part. Researchers measured side effects and vital signs like heart rate and blood pressure after giving cocaine. The goal was t…

This study screened nearly 7,000 volunteers to find people who could take part in future research on drug addiction and its effects on the brain and body. Participants completed phone and in-person interviews, medical exams, and lab tests. No treatment or clinical care was provid…