Levels of vasoactive intestinal peptide, cholecystokinin and calcitonin gene-related peptide in plasma and jejunum of rats following traumatic brain injury and underlying significance in gastrointestinal dysfunction

Figure 6 Alteration of CCK levels in all layers of jejunum after TBI. The level of CCK was significantly increased after TBI as compared with that of control, and peaked at 72 h postinjury, then declined to some degree but was still signifi-cantly higher than that of control on d 7. ^bP < 0.01 vs control; ^dP < 0.01 vs 3 h. Mean ± SD of 6 animals, control: 46.5 ± 13.9 ng/g, 3 h: 92.6 ± 28.7 ng/g, 12 h: 139.8 ± 24.7 ng/g. 24 h: 178.5 ± 25.8 ng/g, 72 h: 286.8 ± 25.9 ng/g, 7 d: 137.8 ± 27.3 ng/g.