The prevalence of obesity has grown to epidemic proportions and has been linked to severe health risks. In order for adequate treatments for obesity to be developed it must first be understood how obesity develops, what neural and physiological substrates are involved, and how external factors can influence it. The purpose of these studies is to use the diet-induced rat model of obesity to assess the neurological and physiological effects of exercise during the critical juvenile period of obesity development. Specifically, these studies will assess changes in food intake, body weight, and defense of body weight when juvenile rats are placed on a high fat diet and given free access to a running wheel and these aspects of energy homeostasis will be tracked through to adulthood. This model will mimic the onset of obesity in children who consume a high fat diet and participate in regular activity. In addition, these studies will focus on known neurological deficits in diet-induced rats and how exercise may serve to reverse these. The overall aim of these studies is to understand how exercise influences energy homeostasis and how exercise may serve to treat human obesity. ? ?

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Predoctoral Individual National Research Service Award (F31)
Project #
5F31NS050903-04
Application #
7369770
Study Section
Special Emphasis Panel (ZRG1-F06 (20))
Program Officer
Mitler, Merrill
Project Start
2005-02-14
Project End
2008-07-31
Budget Start
2008-02-01
Budget End
2008-07-31
Support Year
4
Fiscal Year
2008
Total Cost
$15,178
Indirect Cost
Name
University of Medicine & Dentistry of NJ
Department
Neurosciences
Type
Schools of Medicine
DUNS #
623946217
City
Newark
State
NJ
Country
United States
Zip Code
07107
Patterson, Christa M; Bouret, Sebastien G; Park, Sunny et al. (2010) Large litter rearing enhances leptin sensitivity and protects selectively bred diet-induced obese rats from becoming obese. Endocrinology 151:4270-9
Patterson, Christa M; Bouret, Sebastien G; Dunn-Meynell, Ambrose A et al. (2009) Three weeks of postweaning exercise in DIO rats produces prolonged increases in central leptin sensitivity and signaling. Am J Physiol Regul Integr Comp Physiol 296:R537-48
Bouret, Sebastien G; Gorski, Judith N; Patterson, Christa M et al. (2008) Hypothalamic neural projections are permanently disrupted in diet-induced obese rats. Cell Metab 7:179-85
Patterson, Christa M; Levin, Barry E (2008) Role of exercise in the central regulation of energy homeostasis and in the prevention of obesity. Neuroendocrinology 87:65-70
Patterson, Christa M; Dunn-Meynell, Ambrose A; Levin, Barry E (2008) Three weeks of early-onset exercise prolongs obesity resistance in DIO rats after exercise cessation. Am J Physiol Regul Integr Comp Physiol 294:R290-301