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  • Title: Spinal cord stimulation modulates activity of lumbosacral spinal neurons receiving input from urinary bladder in rats.
    Author: Qin C, Farber JP, Foreman RD.
    Journal: Neurosci Lett; 2007 Nov 20; 428(1):38-42. PubMed ID: 17942225.
    Abstract:
    The aim of this study was to determine whether spinal cord stimulation (SCS) modulates activity of lumbosacral spinal neurons receiving input from the urinary bladder. Extracellular potentials of L6-S2 spinal neurons were recorded in pentobarbital anesthetized, paralyzed and ventilated male rats. SCS (50 Hz, 0.2 ms, 3-5 min, 90% motor threshold) was applied on the dorsal column of L2-L3 and C1-C2 segments and significantly reduced excitatory responses of 18/25 (72%) and 13/19 (68%) lumbosacral neurons to noxious urinary bladder distension (UBD, > or =1.0 ml, 20 s), respectively. SCS affected spinal neurons with either high- or low-threshold responses to UBD. These results suggested that SCS might have a potential therapeutic effect for patients with hypersensitivity and/or pain of cystitis and other urinary bladder disorders.
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