1. The study investigated whether spinal cord stimulation (SCS) could modulate small sensory nerve fibers (SSNFs) innervating the pancreas and preserve pancreatic beta cell function in obese rats and rats treated with resiniferatoxin (RTX) to deplete TRPV1 neurons. 2. SCS at 5Hz, but not 100Hz, increased blood flow to the abdominal skin and pancreas by activating SSNFs expressing TRPV1, while RTX treatment and obesity disrupted this effect. 3. Morphological analysis found disrupted pancreatic islet structure in obese and RTX-treated rats, but SCS preserved islet structure and increased insulin production.