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[Nuclear factor-kappaB mRNA and protein expression in stomach tissue of rats with gastric ulcer recurrence and effect of jianwei yuyang granule on its expression].

OBJECTIVE
To observe the inflammatory reaction, nuclear factor-kappaB (NF-kappaB) mRNA and protein expression in stomach tissue of rats with gastric ulcer recurrence and the effect of Jianwei Yuyang granule (JYG) on them.


METHODS
Gastric ulcer and its recurrent lesion were successively induced by acetic acid and interliukin1-beta (IL-1beta), and the model rats were divided into the sham operation group, the model group, the omeprazole (correction of omepraxole) group and the JYG group to observe the state of chronic inflammatory cell, neutrophil count, NF-kappaBmRNA and protein expression in stomach tissue.


RESULTS
On the 16th and 92th day after administration, the increase of chronic inflammatory cell, neutrophil, NF-kappaBmRNA and protein expression in the model group was more significant than those in the sham operated group (P < 0.01), while that was lower in the JYG group than in the model group (P < 0.05, P <0.01), but with no remarkable difference to the omepraxole group. In addition, the mRNA and protein expression of NF-kappaB were correlated closely with the count of chronic inflammatory cell and neutrophil respectively (P < 0.01).


CONCLUSION
NF-kappaB may play an important role in regulating inflammatory reaction during the healing and recurrence processes of gastric ulcer induced by acetic acid. JYG may suppress inflammatory reaction by inhibiting the activation and expression of NF-kappaB in stomach tissue, which may be one of the mechanisms of JYG in preventing the recurrence of gastric ulcer.