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Iwamoto, Gary A.
Professor, Kinesiology
B.S., Washington State University
Ph.D., University of California, Davis
Research Areas
Autonomic regulation
My current research focus is on the neural control of circulation, with special emphasis on reflex circuitry. The particular problem which has received the most emphasis is the reflex control of circulation during exercise. Movement creates perhaps the most fundamental alteration in metabolic demand. In elucidating the portions of the nervous system which may play a role in this process, we have described ventrolateral .edullary brain areas that appear to respond in a manner consistent with a role in circulatory adjustments during induced muscular contraction. This work will continue, with emphasis on electrophysiological characteristics of cells in these areas in terms of their input-output relationships. Immunocytochemical identification of the cells will be carried out as well as identification of transmitters that may have a role in modulating cell activity. Other research areas: physiology of small diameter nerve fibers; sensory systems.
Representative Publications
Nelson AJ, JM Juraska, TI Musch and GA Iwamoto. Neuroplastic adaptations to exercise: neuronal remodeling in cardiorespiratory and locomotor areas, J Appl Physiol. 99:2312-2322, 2005.
Ragan BG, AJ Nelson, JH Foreman, GW Bell and GA Iwamoto. Effects of a menthol-based analgesic balm on pressor responses evoked from muscle afferents in cats. Am J Vet Res. 65:1204-1210, 2004.
Nelson AJ, BG Ragan, GW Bell, RM Ichiyama and GA Iwamoto. Med Sci Sports Exerc. 36:444-450, 2004.
Ichiyama RM, TG Waldrop and GA Iwamoto. Neurons in and near insular cortex are responsive to muscular contraction and have sympathetic and/or cardiac related discharge. Brain Res. 1008:273-277, 2004.
Ichiyama RM, AB Gilbert, TG Waldrop and GA Iwamoto. Changes in the exercise activation of diencephalic and brainstem cardiorespiratory areas after training. Brain Res, 947:225-233, 2002.
Ichiyama RM, BR Ragan, GW Bell and GA Iwamoto. Effects of Topical analgesics on the pressor response evoked by group III and IV muscle afferents. Med Sci Sports Exer. 34:1440-1445, 2002.
Heine RA, JA Taylor, GA Iwamoto, DB Bubahn and PS.Cooke. Increased adipose tissue in male and female estrogen receptor-alpha knockout mice. National Academy of Sciences. 97:12729-12734, 2000
Additional Information
Related Research (By Area):
Cell Signaling and Communication
Sensory and Motor Systems
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