031709homework - Homework due Name 1 What behavioral and...

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Homework due 3/17/09 Name ________________________________ 1. What behavioral and physiological effects do high and low levels of leptin have in mice? Present this in the form of an overall model of leptin action. 2. Where are leptin receptors located in the brain? Why does this brain area implicate leptin in body weight regulation and hunger? 3. How do leptin blood levels of obese humans compare to normal-weight humans? 4. What percentage of obese humans have either abnormal leptin or abnormal leptin receptors? What are the implications for using leptin as an antiobesity drug? 5. How might malfunctions in the leptin communication with the brain still contribute to the obesity of humans who have normal leptin molecules and normal leptin receptors? What hormonal imbalance is thought to contribute? (There are unproven anti-obesity treatments that attempt to correct the hormonal imbalance. If you’re interested:
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This note was uploaded on 11/03/2009 for the course BIOS 277 taught by Professor Nyby during the Spring '09 term at Lehigh University .

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031709homework - Homework due Name 1 What behavioral and...

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