A Glutamatergic Medial Prefrontal Cortex-Locus Coeruleus Circuit Drives Intestinal Dysmotility in Diarrhea-Predominant Irritable Bowel Syndrome.
Diarrhea-predominant irritable bowel syndrome (IBS-D) is a common chronic disorder of gut–brain interaction characterized by intestinal dysmotility. Central sensitization has a proposed role in intestinal dysmotility, yet the precise neural circuits and mechanisms remain poorly understood. In this study, we established a neonatal maternal deprivation plus restraint stress (NMD + RS) mouse model that recapitulates key diarrhea-like phenotypes. Neural activation mapping revealed a significant upre...