Abstract
Cervical spinal cord transection is used as a model of mammalian stress ulcerogenesis. Circadian variations in gastric ulceration have been demonstrated in other animal models. We investigated whether gastric ulceration changed after cervical cord transection throughout a 24-h period by subjecting different groups of rats to cord transection. Ulcers were quantitated using an index described by Szabo and colleagues. Ulcer formation showed significant variation as a function of time of lesioning, with least severe ulceration at 8 AM. We found that cord transection, like other models of gastric ulceration, is also influenced by the circadian system.
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