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  • Title: Effect of preinjury large bowel emptying on the inhibition of upper gastrointestinal motility after spinal cord injury in rats.
    Author: Gondim FA, Rodrigues CL, Lopes AC, Leal PR, Camurça FL, Freire CC, Dos Santos AA, Rola FH.
    Journal: Dig Dis Sci; 2003 Sep; 48(9):1713-8. PubMed ID: 14560989.
    Abstract:
    Spinal cord transection (SCT) inhibits gastrointestinal motility in rats. We evaluated the effect of preinjury large bowel emptying on this phenomenon. Male Wistar rats (N = 52) were fasted for 24 or 48 hr with water ad libitum and pretreated with lactose (0.8 g) or saline. Next, laminectomy followed or not by complete SCT between T4 and T5 vertebrae was performed. Phenol red recovery in the stomach and proximal, medial, and distal small intestine was determined 1 day later. In animals submitted to 24 hr fasting + saline, SCT increased gastric recovery by 42.8% and decreased medial small intestine recovery by 56.2%, while 48 hr fasting + saline or 24 hr fasting + lactose prevented the inhibition of gastric emptying (GE) in SCT animals. The 48 hr fasting + lactose prevented the inhibition of both GE and gastrointestinal transit. SCT-induced inhibition of upper gastrointestinal motility may involve enhancement of inhibitory reflexes, which can be prevented by large bowel emptying.
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