Adherence
Autophagy in the hypothalamus regulates food intake by modulating the expression of AgRP neurons in response to starvation and free fatty acid levels.
Fasting triggers a brain-based hunger signal (AgRP) that is dependent on the brain's ability to recycle stored fat (lipophagy). If you are trying to fast, ensuring your brain's autophagy is functioning may help manage hunger cues. However, this is a complex neural process and not something that can be directly 'controlled' by diet alone.
Lipophagy-generated hypothalamic FFA directly regulate the increase in orexigenic AgRP expression that occurs in AgRP hypothalamic neurons in response to starvation or to exposure to extracellular FFA.
Why this rating
Based on mouse knockout studies showing reduced food intake and body weight when autophagy is blocked in AgRP neurons.
Source
Lipophagy: Connecting Autophagy and Lipid Metabolism
Rajat Singh et al. · International Journal of Cell Biology · 2012
DOI 10.1155/2012/282041
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- Lipophagy, the selective autophagic degradation of lipid droplets, is a critical physiological mechanism for maintaining cellular lipid homeostasis, preventing fatty liver and obesity, and regulating food intake via hypothalamic signaling.Good
- Saturated fatty acids (e.g., palmitic acid) inhibit autophagy, whereas unsaturated fatty acids (e.g., oleic acid) stimulate it, creating a dual effect of dietary lipids on autophagic activity.Good
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