Effect of garlic sulfur compounds on neutrophil infiltration and damage to the intestinal mucosa by endotoxin in rats
2012
Lee, Shih-Hua | Liu, Yu-Ting | Chen, Ke-Ming | Lii, Chong-Kuei | Liu, Cheng-Tzu
We investigated the protective effects of garlic sulfur compounds (GSCs), specifically, diallyl sulfide (DAS), diallyl disulfide (DADS), and diallyl trisulfide (DATS), on endotoxin-induced intestinal damage. Wistar rats received by gavage 0.125 or 0.025mmol/kg body wt of each GSC or the vehicle (corn oil; 2mL/kg body wt) every other day for 2weeks before being injected with endotoxin (ip, 5mg/kg body wt). Control rats were administered corn oil and were injected with sterile saline. Rats were killed at 18h after injection. Both doses of DAS suppressed endotoxin-induced neutrophilia, serum levels of sICAM-1 and CINC-1, cellular CD11b on neutrophils, and intestinal contents of ICAM-1, CINC-1, TNF-alpha, and IL-1beta (p<0.05). DADS suppressed endotoxin-induced intestinal contents of ICAM-1, TNF-alpha, and IL-1beta at both doses, but only suppressed the serum sICAM-1 level and cellular CD11b on neutrophils at the low dose (p<0.05). DATS did not ameliorate the endotoxin-induced serum level of sICAM-1 or CINC-1 but suppressed intestinal IL-1beta at both doses. The low but not the high dose of DATS also ameliorated the intestinal contents of ICAM-1 and TNF-alpha (p<0.05). All GSCs reversed endotoxin-induced neutrophil infiltration and damage in the intestine, and the order of the effects of these GSCs to normalize intestinal morphology was DAS>DADS>DATS.
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