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PHAR 5091.010

Course Name: Appetite Control: Adiposity Hormones and Neuropeptides

Course Director: Dr. Xin-Yun Lu

Course Content:

Appetite is tightly controlled by a complicated network with orexigenic and anorexigenic signals interacting both peripherally and centrally. This course will introduce students to adiposity hormones (leptin, adiponectin, and insulin) and neuropeptides (alpha-melanocyte-stimulating hormone, agouti-related protein, neuropeptide Y, and cocaine-amphetamine-regulated-transcript) that regulate appetite and manage body weight.  How adiposity hormones communicate with the network involving appetite-regulating neuropeptides will be discussed. The objective of this course is to provide students with recent advances in our understanding of molecular, genetic, and neural mechanisms that underlie eating disorders such as obesity and anorexia.

Zhang Y, Proenca R, Maffei M, Barone M, Leopold L, Friedman JM. Positional cloning of the mouse obese gene and its human homologue. Nature. 1994 Dec 1; 372(6505):425-32.

Elmquist JK, Elias CF, Saper CB. From lesions to leptin: hypothalamic control of food intake and body weight. Neuron. 1999 Feb;22(2):221-32.

Gerozissis K. Brain insulin and feeding: a bi-directional communication. Eur J Pharmacol. 2004 Apr 19;490(1-3):59-70.

Qi Y, Takahashi N, Hileman SM, Patel HR, Berg AH, Pajvani UB, Scherer PE, Ahima RS. Adiponectin acts in the brain to decrease body weight. Nat Med. 2004 May;10(5):524-9.

Cone RD. Anatomy and regulation of the central melanocortin system. Nat Neurosci. 2005 May;8(5):571-8.

Seeley RJ, Drazen DL, Clegg DJ. The critical role of the melanocortin system in the control of energy balance. Annu Rev Nutr. 2004;24:133-49.

Adan RA. Constitutive recepter activity series: endogenous inverse agonists and constitutive receptor activity in the melanocortin system. Trends Pharmacol Sci. 2006 Apr; 27(4):183-6.

Xu AW, Barsh GS. MC4R neurons weigh in differently. Nat Neurosci. 2006 Jan;9(1):15-6.

Hunter RG, Philpot K, Vicentic A, Dominguez G, Hubert GW, Kuhar MJ. CART in feeding obesity. Trends Endocrinol Metab. 2004 Nov; 15(9):454-9.

Currie PJ. Integration of hypothallmic feeding and metabolic signals: focus on neuropeptide Y. Appetite. 2003 Dec;41(3):335-7.

Grading:

This course will meet once per week for 1 hour. The content of this course will change based upon contemporary papers. Students will read the papers and be expected to answer questions during each discussion. Discussions of the paper contents will be formatted in a journal club style. At the end of class, the students will be required to give an oral presentation and write a review paper covering appetite-regulating factors discussed in the class (6-8 pages, double-spaced). Grading will be assigned based on participation in discussions (40%), oral presentation (20%), and the review paper (40%) using letter grades (A-F).

Pre-requisites: Consent of Instructor

Credit hours: 1 credit

When offered: Fall and Spring Semesters

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