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Ozempic may be reshaping the brain, scientists say
Researchers found the pills also reduced dopamine signaling in a brain reward circuit, pointing to possible uses beyond weight loss.
- A new NIH-funded study published in Nature on May 6 reveals that oral GLP-1 weight-loss drugs target a deep-brain reward circuit, dampening 'hedonic feeding'—eating motivated by pleasure rather than hunger.
- Researchers found these oral compounds activate the central amygdala, a brain region tied to desire and reward that scientists previously did not believe GLP-1 drugs could directly access, reducing dopamine release during pleasure-driven eating.
- Investigating small-molecule drugs including orforglipron and danuglipron, the team mapped activated brain regions in mice; scientists are now planning to determine if these newer medications can also reduce cravings unrelated to food.
- "Now it seems oral small-molecule GLP-1s also dial back eating for pleasure by engaging a brain reward circuit," said co-corresponding author Ali Guler, suggesting potential for treating addiction.
- Future studies will examine the drugs' potential effects on substance use disorder; as medication accessibility rises, experts emphasize understanding the neural mechanisms underlying these complex behavioral effects.
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Scientists Identify Hidden Brain Pathway Behind GLP-1 Weight-Loss Effects
A new study shows oral GLP-1 drugs suppress hedonic eating through a deep-brain reward circuit linked to dopamine release, potentially extending their use beyond weight loss. Why do GLP-1 weight-loss drugs seem to quiet cravings in ways that go beyond simple appetite suppression? A new NIH-funded study suggests the answer may lie deep within the [...]
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Leaning Left4Leaning Right1Center3Last UpdatedBias Distribution50% Left
Bias Distribution
- 50% of the sources lean Left
50% Left
L 50%
C 38%
12%
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