A key effect of leptin that results in the inhibition of eating is to
A) increase the entry of insulin into the brain.
B) activate CCK receptors in the brain.
C) inactivate receptors that control the release of hypothalamic NPY and AGRP.
D) decrease the release of NPY in the hypothalamus.
E) cause the stomach to release more ghrelin.
Answer: C
Rationale: A key effect of leptin that results in the inhibition of eating is to inactivate receptors that control the release of hypothalamic NPY and AGRP.
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