[Effect of oxymatrine on NF-kappaB and other cell factors in rats lung tissue with septic shock]
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Ming-Hao Zhang1, Gui-Zhong Li, Hua Xu
1Department of Pathophysiology, Ningxia Medical College of Base College, Yinchuan 750004, China.
Objective:
To explore the effects of oxymatrine (OMT) on NF-kappaB and other cell factors in rat lung tissue with septic shock.
Method:
Fifty-six male SD rats were randomly divided into 7 groups: sham operation group, OMT control group, model (CLP) group, CLP + OMT high, middle, low-dose group, positive control group. Changes in NF-kappaB (p65) and IkB-alpha activity in the pulmonary tissue were determined by immunohistochemical method, tumour necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) levels in pulmonary tissue were determined by radioimmunoassay.
Result:
OMT could decrease significantly the NF-kappaB (p65) and IkB-alpha activity in the pulmonary tissue (P < 0.05), TNF-alpha and IL-6 levels in pulmonary tissue homogenate decreased markedly (P < 0.05). OMT could elevate the content of PaO2, SaO2, decrease the content of PaCO2, HCO3- and decrease the ratio between wet weight of the lung and dry weight of the lung and the PWI.
Conclusion:
OMT can inhibit NF-kappaB-inducing kinase (NIK), NF-kappaB activity and reduce the expression of proinflammatory factor (TNF-alpha, IL-6) and antagonize the lung injury in a rat model of septic shock.