Rate My Professor Gerard Ahern

Gerard Ahern serves as Professor and Vice Chair for Research in the Department of Pharmacology and Physiology at Georgetown University Medical Center. His laboratory investigates the fundamental mechanisms by which cells sense and respond to changes in their extracellular environment. Central to this work is the study of Transient Receptor Potential (TRP) channels, particularly their roles in detecting diverse chemical and physical stimuli in sensory neurons involved in pain and itch signaling. Ahern's research also explores novel ligand signaling pathways at G-protein coupled receptors in both neuronal and immune cells. Utilizing advanced techniques—including electrophysiology, cell imaging, genetics, biochemistry, and animal models—his group elucidates key ion channel functions in sensory and immune processes.

Ahern earned a B.Sc. (Honours) in 1990 and an LL.B. in 1991 from the University of Canterbury, New Zealand, and his Ph.D. in 1996 from the Australian National University. He also holds an appointment as Associate Professor in Georgetown's Interdisciplinary Program in Neuroscience. His highly cited publications, exceeding 6,000 citations on Google Scholar, underscore his impact on sensory biology and neuropharmacology. Seminal works include 'Induction of vanilloid receptor channel activity by protein kinase C' (Nature, 2000), 'cGMP and S-nitrosylation: two routes for modulation of neuronal excitability by NO' (Trends in Neurosciences, 2002), 'Activation of TRPV1 by the satiety factor oleoylethanolamide' (Journal of Biological Chemistry, 2003), 'Serotonin provides an accessory signal to enhance T-cell activation by signaling through the 5-HT7 receptor' (Blood, 2007), and 'General anesthetics activate a nociceptive ion channel to enhance pain and inflammation' (Proceedings of the National Academy of Sciences, 2008). Additional contributions cover serotonin signaling in immune cells, TRPV1 promiscuity, and 5-HT receptor classifications. Ahern mentors Ph.D. students and serves as a thesis mentor in Pharmacology and Physiology.