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American Focus > Blog > Tech and Science > ‘Off Switch’ in The Brain to Stop Binge Drinking Discovered in Mice : ScienceAlert
Tech and Science

‘Off Switch’ in The Brain to Stop Binge Drinking Discovered in Mice : ScienceAlert

Last updated: June 20, 2025 7:10 pm
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‘Off Switch’ in The Brain to Stop Binge Drinking Discovered in Mice : ScienceAlert
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Alcohol abuse continues to be a major issue worldwide, causing significant human, social, and economic costs. Despite the availability of various treatments, many have proven ineffective in providing substantial relief. In the United States alone, a staggering 16.4 million individuals aged 12 and older reported binge drinking on five or more days within the past month.

While there are medications designed to help individuals reduce or stop their alcohol consumption, their effectiveness is limited, often accompanied by significant side effects. For over three decades, efforts to address excessive drinking have primarily focused on developing drugs that target proteins responsible for regulating how neurons respond to stimuli.

However, these drugs have a broad impact on neurons throughout the brain, leading to unwanted side effects such as headache, fatigue, drowsiness, or insomnia. As a neurobiologist, my research aims to identify specific brain circuits crucial in suppressing alcohol consumption to develop targeted treatments with minimal side effects. In a recent study, my team and I discovered a small cluster of neurons responsible for suppressing binge drinking.

Researchers have previously identified key brain regions involved in alcohol abuse, but only a small number of neurons within these regions are believed to drive the effects of alcohol on brain function. These neuronal ensembles play a vital role in memory formation and experiencing fear, but it was uncertain if they influenced binge drinking behavior.

To address this challenge, we utilized a genetically modified mouse model that expresses a red fluorescent protein in alcohol-sensitive neurons when exposed to alcohol. By mapping these neurons, we pinpointed a specific group of neurons in the medial orbitofrontal cortex that respond to binge drinking. This brain region is known for its role in decision-making and behavior adaptation.

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Turning off this neuronal ensemble led to a significant increase in alcohol consumption in mice, indicating a built-in regulatory system that acts as a brake on alcohol intake. Stimulating these neurons could potentially help individuals struggling with alcohol intake control. While further research is needed to determine if similar neuronal ensembles exist in human brains, advancements in gene therapy offer hope for more effective treatments with fewer side effects for alcohol use disorder.

Gilles Martin, Associate Professor of Neurobiology at UMass Chan Medical School, highlights the potential of targeting specific brain circuits to address alcohol abuse effectively. This article was originally published on The Conversation and is republished under a Creative Commons license.

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