Homeostasis and Behavior - Control of Food Intake - CEntral Signals: The Role of the Hypothalamus
4 important questions on Homeostasis and Behavior - Control of Food Intake - CEntral Signals: The Role of the Hypothalamus
How does adiponectin work?
ADP affects insulin actions in the periphery to facilitate glucose uptake in the cells.
How does PYY work?
PYY decreases food intake by inhibiting ypotalamic NPY and AGRPexpressing neurosn which realease ther inhibition of neighboring POMC expressing neurosns. In compn with leptin, it crosses the bood brainbarier to act on the acruate nuclei.
How does CCK work?
Inhibits food intake. It is a GI peptide hormone that is released during feeding to aide with digestrion. It is also released from cells in the brain stem and hypothalamus. When CCk is released during a meals it binds to CCK1 receptors on the vagus nerv that signals the hindbran that fat/protein has meen ingested.
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How does GLP-1 work?
Decreases food intake. It is produced both in the gut and brain. IT is released from L-cells in the gut in response to food, and it interacts with receptors in the brain stem, arcuate nuclei and PVN.
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