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Drugs of abuse: Identifying the addiction circuit

Researchers at UNIGE have pinpointed the brain circuit responsible for addictive behavior in rodents. The study found that a stronger connection between decision-making and reward systems led to compulsive behavior, which could be regulated by artificially increasing or decreasing the activity of this circuit.

SourceUniversité de Genève·JournalNature·DateDec 19, 2018

Dopamine drives early addiction to heroin

Scientists have made a major advance in understanding how heroin addiction develops by studying the brain circuits that lead to its powerful addictive effects. The discovery of dopamine neurons' role in reinforcing heroin's effects could help refine addiction treatment and develop less addictive painkillers.

SourceeLife·DateOct 30, 2018

Inhaled version of blood pressure drug shows promise in treating anxiety, pain

A new study by Centre for Addiction and Mental Health suggests that an inhaled form of a high blood pressure medication may treat certain types of anxiety as well as pain. The treatment uses a short-acting nasal spray called amiloride, which targets physiological changes in brain functioning linked to anxiety and pain sensitivity.

SourceCentre for Addiction and Mental Health·JournalJournal of Psychopharmacology·DateSep 11, 2018

A nursing perspective on the opioid crisis

The Journal of Addictions Nursing special issue provides a unique nursing perspective on the opioid crisis, highlighting research topics and expert views. The publication presents seven original research papers addressing various aspects of OUD, including medication-assisted treatment, overdose prevention, and stigma reduction.

SourceWolters Kluwer Health·JournalJournal of Addictions Nursing·DateSep 5, 2018

A gene required for addictive behavior

A study published in EMBO Reports reveals that the Maged1 gene plays a key role in controlling addictive behavior. Researchers found that mice lacking the gene are unresponsive to cocaine and exhibit reduced dopamine release, indicating a promising new entry point for understanding drug addiction mechanisms.

SourceUniversité libre de Bruxelles·JournalEMBO Reports·DateJul 12, 2018

Opioid epidemic responses overlook gender

Current opioid epidemic responses neglect to account for gender-specific factors, including pain sensitivity and treatment outcomes. Women are disproportionately affected by opioid addiction, with increased risk of overdose deaths and limited access to effective treatment options.

SourceYale University·JournalThe Lancet·DateJul 5, 2018

How can patients be protected from post-surgery opioid addiction?

A recent study found that up to seven percent of patients develop a persistent habit after being prescribed opioids following surgery. To address this issue, experts recommend enhanced care coordination between surgeons and primary care physicians to identify patients at risk of developing opioid addiction.

SourceSpringer·JournalJournal of General Internal Medicine·DateJun 12, 2018

An improved anti-addiction medication

Scientists developed a potent new medicine to fight addiction by blocking an enzyme, resulting in higher GABA levels and reduced dopamine release. The new compound, CPP-115, is 10 times more efficient than vigabatrin and has fewer side effects.

SourceAmerican Chemical Society·JournalJournal of the American Chemical Society·DateFeb 21, 2018

Symptoms of alcoholism make taking medication to treat the disease more difficult

Researchers at Oregon State University found that symptoms of alcoholism make it difficult for patients to take naltrexone, a medication approved to treat alcohol use disorder. The study suggests that ongoing daily contact with the patient is crucial to improving adherence, particularly after heavy drinking episodes or strong cravings.

SourceOregon State University·JournalAnnals of Behavioral Medicine·DateFeb 6, 2018

Realistic rodent model of drug addiction

A new rat model of drug addiction, requiring daily puzzle-solving for cocaine reward, still produced substance use disorder symptoms. In contrast to traditional models, the rats relied on flexible problem-solving to maintain their addiction, contradicting the widely-held view that habit is necessary.

Smoking study personalizes treatment

A new study at Vanderbilt University Medical Center uses a blood test to personalize treatment for smokers. The study found that patients who are 'normal' metabolizers of nicotine respond better to varenicline (Chantix), while those who are 'slow' metabolizers do as well with a nicotine patch.

SourceVanderbilt University Medical Center·JournalNicotine & Tobacco Research·DateNov 20, 2017

The aftermath of Katrina through the eyes of addiction treatment

A study of 11 addiction treatment professionals reflects the increase in prescription drug addictions and staff-related challenges following Hurricane Katrina. The disaster led to the creation of emergency preparedness plans, but participants expressed frustration with federal help conditions.

SourceWiley·JournalJournal of Addictions & Offender Counseling·DateSep 27, 2017