James Galligan

James Galligan is a Professor at Michigan State University, affiliated with the BioMolecular Science Gateway, Neuroscience Program, and Cell & Molecular Biology Program. His research focuses on the enteric nervous system and gastrointestinal physiology, with extensive expertise in electrophysiological, optogenetic, immunohistochemical, and confocal microscopy imaging techniques.

Dr. Galligan's research spans multiple interconnected fields:

• Autonomic neurotransmission in the gastrointestinal tract
• Synaptic mechanisms in the enteric nervous system (ENS)
• Gastrointestinal motility control systems
• Enteric nervous system physiology and pharmacology
• Synaptic and neuromuscular transmission using microelectrode recording
• Hypertension and vascular function

His laboratory conducts ex vivo and in vivo measurements of gastrointestinal motility and enteric neurophysiology in genetically-modified animal models of gastrointestinal disorders. Dr. Galligan's work bridges neuroscience, pharmacology, and gastrointestinal physiology, with particular emphasis on understanding how neurotransmission regulates gut function through receptors including serotonin, opioid, and purinergic systems.

His publication record demonstrates sustained research activity spanning several decades, with recent work through 2025 focusing on receptor mechanisms in the ENS. His research has significant implications for understanding and treating gastrointestinal disorders including irritable bowel syndrome, functional dyspepsia, and other motility disorders. The consistent output across multiple disciplines indicates a highly productive research program with translational potential.