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An In Vivo Method for Evaluating the Gut-Blood Barrier and Liver Metabolism of Microbiota Products
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[Protective effects of dimethyl sulfoxide on zymosan-insulted gut barrier impairment]
Hui-Ping Zhang1, Li-Qian Ma1, Yi Lv1
1Laboratory for Shock and Multiple Organ Dysfunction of Burns Institute, Key Research Laboratory of Tissue Repair and Regeneration of PLA, and Beijing Key Research Laboratory of Skin Injury and Repair Regeneration, the First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, China.
Objective:
To explore the effect of dimethyl sulfoxide(DMSO) on suppressing the release of gut inflammatory cytokine and re-store of the barrier impairment following zymosan-insulted systemic inflammatory response syndrome (SIRS).
Methods:
S D rats were randomly divided into four groups:sham with administration of normal saline (SS group); sham with administration of DMSO (DS group); zymosan with administration of normal saline (ZS group); and zymosan with administration of DMSO (ZD group), each group includes two subgroups at 4 h and 24 h after surgery. At 4 h and 24 h after intraperitoneal injection of zymosan (750 mg/kg), the levels of intestinal inflammatory cytokines (tumor necrosis factor-αand interleukin-10) and the activity of diamine oxidase in plasma were examined. Intestinal injury was evaluated by using an intestinal histological score.
Results:
DMSO suppressed the release of tumor necrosis factor-αand increased interleukin-10 levels in the intestine compared with the ZS group at the corresponding time points. DMSO decreased the level of diamine oxidase in plasma compared with the ZS group. DMSO restored the injury of intestinal villi and the gut injury score was significantly lower than that in the ZS group.
Conclusions:
DMSO can suppress the release of intestinal inflammatory cytokines and restore zymosan-insulted gut barrier impairment.
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