Eating Disorders · Texas behavioral health news
Unraveling the brain expression of bdnf in a mouse model of anorexia nervosa - Nature
Eating Disorders (Google News) · October 17, 2025
In plain language
Researchers recently studied how a specific brain protein called BDNF affects anorexia-like symptoms in mice. BDNF helps the brain regulate metabolism and cognitive flexibility, which is the ability to adapt to new rules or situations. The study found that severe food restriction lowered BDNF levels in brain areas responsible for rewards and decision-making, which also made the mice less mentally flexible. Interestingly, while refeeding helped restore these levels in some parts of the brain, physical activity like running changed how the brain responded to the diet.
AI-generated summary of the source article. Not medical advice.
Key takeaways
- Anorexia nervosa is increasingly viewed as a metabo-psychiatric disorder involving both brain function and metabolism.
- The BDNF protein plays a vital role in how the brain manages energy, appetite, and thinking skills.
- Severe food restriction can cause a temporary drop in mental flexibility and lower BDNF levels in the brain.
- Short-term refeeding helped restore brain protein levels, but physical activity interfered with these biological effects.
- Understanding these brain changes may help researchers find new ways to prevent relapse in patients with eating disorders.
Unraveling the brain expression of bdnf in a mouse model of anorexia nervosa Nature
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