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Department of Physiology and Membrane Biology

Department of Physiology and Membrane Biology

Barbara Horwitz, Ph.D.

Barbara Horwitz, Ph.D.

280 Briggs Hall
Davis Campus
(530) 752-0169

Recent/Current Research Funding

National Institutes of Health

Graduate Group Affiliations

Molecular, Cellular and Integrative Physiology

Research Interests

Neural, hormonal, and genetic regulation of cellular oxidative metabolism, energy balance, obesity, and thermogenesis. Extracellular signal reception/intracellular signal transduction and uncoupling proteins; physiological changes with obesity/aging.


Representative Publications

2003  Ohliger-Frerking P, JM Horowitz, & BA Horwitz. Serotonergic dorsal raphe neurons from obese zucker rats are hyperexcitable. Neuroscience 120:627-634.

2003  Gabaldon AM, DA Gavel, JS Hamilton, RB McDonald, BA Horwitz. Norepinephrine release in brown adipose tissue remains robust in cold-exposed senescent Fischer 344 rats. Am J Physiol: Regul, Integ & Comp Physiol 285: R91-R98.

2002  Horvath, TK, S Diano, S Miyamoto, S Barry, S Gatti, D. Alberati, F. Livak, A Lombardi, M Moreno, F Goglia, G Mor, J Hamilton, D Kachinskas, B. Horwitz, & CH Warden. Uncoupling proteins-2 and 3 influence obesity and inflammation in transgenic mice. Int. J. Obesity 27: 433-442.

2002  Ohliger-Frerking P, JM Horowitz, & BA Horwitz. Enhanced adrenergic excitation of serotonergic dorsal Raphe neurons in genetically obese rats. Neurosci Lett. 31: 332:107-112.

2002  Horwitz, BA, CA Blanton and RB McDonald. Physiologic determinants of the anorexia of aging: Insights from animal studies. Ann. Rev. Nutr. 22:417-438

2001  Blanton, CA, BA Horwitz, JE Blevins, JS Hamilton, EJ Hernandez and RB McDonald. Reduced feeding responses to neuropeptide Y in senescent Fischer 344 rats. American Journal of Physiology. 280(4):R1052-60

2000  De Fanti BA, DA Gavel, JS Hamilton, and BA Horwitz. Extracellular hypothalamic serotonin levels after dorsal raphe nuclei stimulation of lean (Fa/Fa) and obese (fa/fa) Zucker rats. Brain Researcn. 869:6-14


Teaching Interests

Cellular physiology; metabolic physiology


Honors and Awards

  • National Institute of Health Merit Award
  • Academic Senate Distinguished Teaching Award
  • UC Davis Prize for Teaching and Scholarly Achievement
  • Arthur C. Guyton Physiology Teacher of the Year
  • Past President, American Physiological Society
  • Past President, Society for Experimental Biology and Medicine
  • Board of Directors, Federation of American Societies