A 3 yr old boy with Cockayne's syndrome (CS), a neurodegenerative disease, presented with malnutrition secondary to vomiting and diarrhea. Anatomic, mucosal and infectious etiologies were ruled out.

Figure 1A:In the awaken and fasted state, typical MMC contractile movements were seen in the gastric body, sinus, duodenum and jejunum in beagle dogs, while the colon was dominated by intermittent ...