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The Department of Physiology in the School of Medicine at the University of Texas Health Science Center, San Antonio is renowned for its seminal contributions in many scientific areas including cardiovascular physiology, neurophysiology and the physiological basis of aging. Using sophisticated genetic and molecular tools, our scientists are unraveling the fundamental mechanisms that underlie tissue and cellular physiology; and how these processes are compromised in injury and disease.


Rheaclare Fraser, Ph.D., Wins Poster Presentation

Dr. Rheaclare Fraser recently won first place for the best postdoctoral poster presentation at the recent meeting of the “International Society for Serotonin Research” (ISSR) at Arabella in South Africa.  Dr. Fraser is a postdoctoral fellow in Dr. Lynette Daws lab.

Aging Decreases L-Type Calcium Channel Currents and Pacemaker Firing Fidelity in Substantia Nigra DopamineNeurons

Substantia nigra dopamine neurons are involved in behavioral processes that include cognition, reward learning, and voluntary movement. Selective deterioration of these neurons is responsible for the motor deficits associated with Parkinson’s disease (PD).  Aging is the leading risk factor for PD, suggesting that adaptations occurring in dopamine neurons during normal aging may predispose individuals to the development of PD.  See more.

Dr. Brenner Receives Grant

Robert Brenner, Ph.D., Associate Professor, is the recipient of an NIH-R21 grant award entitled "SK channel antagonists as novel bronchodilators for asthma"

Physiology Spotlight

  • Walter Holbein, Ph.D.

    Walter Holbein, Ph.D., is this year's recipient of the John M. Johnson Dissertation Award.  This award is bestowed on a graduating student who exhibited an outstanding performance during his/her training. The award honors Dr. Johnson for his many contributions to the Department of Physiology since joining the faculty in 1975.

    Dr. Holbein's dissertation is entitled "Sympathetic Neurogenic Vasometer Tone: The Importance of Tonic Irregular Activity".  His mentor was Glenn Toney, Ph.D.