Summary
To explore the protective effect of sodium tanshinone IIA sulfonate (STS) on microcirculatory disturbance of small intestine in rats with sepsis, and the possible mechanism, a rat model of sepsis was induced by cecal ligation and puncture (CLP). Rats were randomly divided into 3 groups: sham operated group (S), sepsis group (CLP) and STS treatment group (STS). STS (1 mg/kg) was slowly injected through the right external jugular vein after CLP. The histopathologic changes in the intestinal tissue and changes of mesenteric microcirculation were observed. The levels of tumor necrosis factor-α (TNF-α) in the intestinal tissue were determined by using enzyme-linked immunoabsorbent assay (ELISA). The expression of intercellular adhesion molecule-1 (ICAM-1) in the intestinal tissue was detected by using immunohistochemisty and Western blot, that of nuclear factor κB (NF-κB) and tissue factor (TF) by using Western blot, and the levels of NF-κB mRNA expression by using RT-PCR respectively. The microcirculatory disturbance of the intestine was aggravated after CLP. The injury of the intestinal tissues was obviously aggravated in CLP group as compared with S group. The expression levels of NF-κB p65, ICAM-1, TF and TNF-α were upregulaed after CLP (P<0.01). STS post-treatment could ameliorate the microcirculatory disturbance, attenuate the injury of the intestinal tissues induced by CLP, and decrease the levels of NF-κB, ICAM-1, TF and TNF-α (P<0.01). It is suggested that STS can ameliorate the microcirculatory disturbance of the small intestine in rats with sepsis, and the mechanism may be associated with the inhibition of inflammatory responses and amelioration of coagulation abnormality.
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This project was supported by a grant from Natural Sciences Foundation of Hubei Province, China (No. 2009CDB371).
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Zhu, W., Lv, Q., Chen, H. et al. Protective effect and mechanism of sodium tanshinone II A sulfonate on microcirculatory disturbance of small intestine in rats with sepsis. J. Huazhong Univ. Sci. Technol. [Med. Sci.] 31, 441–445 (2011). https://doi.org/10.1007/s11596-011-0470-8
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DOI: https://doi.org/10.1007/s11596-011-0470-8