The long-term vision of the principal investigator's (Pl)'s research program involves participating in translational studies of motor control in normal aging and Parkinson's disease (PD). The first step will be to develop clinically-relevant behavioral tests to assess motor control and related neural function in preclinical animal models. While the PI is currently funded to study age-related changes in rats' orolingual motor function, extension of the research program into more sophisticated behavioral and electrophysiological recording techniques is desired. Specifically, the PI needs additional time to work with Dr. Paul D. Cheney, who has agreed to train the PI to perform combined electrophysiological/electromyography (EMG) studies. This will allow the PI to study movement-related neural activity in greater detail and with greater precision. In addition, the PI plans to develop a forelimb force control task into a method to study functional cortical organization and reorganization as a function of age and 6-hydroxydopamine (6-OHDA) depletion in rats. Dr. Randy J. Nudo has agreed to train the PI in sensorimotor cortical mapping techniques so that this procedure can be incorporated into the Pi's laboratory. During the time of the award period, the PI will participate in a graduate-level course in the responsible conduct of scientific research. Dr. James Voogt, former chair of Molecular & Integrative Physiology at the University of Kansas Medical Center, has agreed to serve as a senior faculty mentor to the PI during the award period. Dr. Voogt will counsel the PI on career-related issues and serve as a source of accountability. The K02 award will allow the PI to spend 90% of his time conducting research. It will also provide valuable financial resources since it will allow for 90% of the Pi's salary to be returned to the PI for research-related purposes. ? ? Relevance to Public Health: ? This research should yield information regarding relationships between neural function and motor function in normal aging and in Parkinson's disease. ? ? ?

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Research Scientist Development Award - Research (K02)
Project #
5K02AG026491-03
Application #
7447408
Study Section
National Institute on Aging Initial Review Group (NIA)
Program Officer
Chen, Wen G
Project Start
2006-08-01
Project End
2011-06-30
Budget Start
2008-07-01
Budget End
2009-06-30
Support Year
3
Fiscal Year
2008
Total Cost
$114,463
Indirect Cost
Name
University of Kansas
Department
Physiology
Type
Schools of Medicine
DUNS #
016060860
City
Kansas City
State
KS
Country
United States
Zip Code
66160
Smittkamp, Susan; Spalding, Heather; Zhang, Hongyu et al. (2014) Differential effects of amphetamine and GBR-12909 on orolingual motor function in young vs aged F344/BN rats. Psychopharmacology (Berl) 231:4695-701
Smittkamp, Susan E; Spalding, Heather N; Brown, Jordan W et al. (2014) Relationships between tongue motility, grip force, and survival in SOD1-G93A rats. Physiol Behav 125:17-20
Nishimune, Hiroshi; Stanford, John A; Mori, Yasuo (2014) Role of exercise in maintaining the integrity of the neuromuscular junction. Muscle Nerve 49:315-24
Smittkamp, Susan E; Morris, Jill K; Bomhoff, Gregory L et al. (2014) SOD1-G93A mice exhibit muscle-fiber-type-specific decreases in glucose uptake in the absence of whole-body changes in metabolism. Neurodegener Dis 13:29-37
Nishimune, Hiroshi; Numata, Tomohiro; Chen, Jie et al. (2012) Active zone protein Bassoon co-localizes with presynaptic calcium channel, modifies channel function, and recovers from aging related loss by exercise. PLoS One 7:e38029
Nuckolls, Andrea L; Worley, Cole; Leto, Christopher et al. (2012) Tongue force and tongue motility are differently affected by unilateral vs bilateral nigrostriatal dopamine depletion in rats. Behav Brain Res 234:343-8
Morris, J K; Seim, N B; Bomhoff, G L et al. (2011) Effects of unilateral nigrostriatal dopamine depletion on peripheral glucose tolerance and insulin signaling in middle aged rats. Neurosci Lett 504:219-22
Bethel-Brown, Crystal S; Morris, Jill K; Stanford, John A (2011) Young and middle-aged rats exhibit isometric forelimb force control deficits in a model of early-stage Parkinson's disease. Behav Brain Res 225:97-103
Morris, J K; Bomhoff, G L; Gorres, B K et al. (2011) Insulin resistance impairs nigrostriatal dopamine function. Exp Neurol 231:171-80
Morris, Jill K; Bomhoff, Gregory L; Stanford, John A et al. (2010) Neurodegeneration in an animal model of Parkinson's disease is exacerbated by a high-fat diet. Am J Physiol Regul Integr Comp Physiol 299:R1082-90

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