Abstract Title:

[Mechanism of anti-Helicobacter pylori urease activity of patchouli alcohol].

Abstract Source:

Zhongguo Zhong Yao Za Zhi. 2017 Feb ;42(3):562-566. PMID: 28952265

Abstract Author(s):

Da-Wei Lian, Yi-Fei Xu, Wen-Kang Ren, Li-Jun Fu, Ping-Long Fan, Hong-Ying Cao, Ping Huang

Article Affiliation:

Da-Wei Lian


To investigate the effect of patchouli alcohol on inhibiting Helicobater pylori urease activity, and its effect on expression levels of related genes, and lay the foundation for further research on the effect of patchouli alcohol on H. pylori colonization and infection. H. pyloriwas cultured and identified by gram staining, rapid urease test (RUT) and PCR method. Then agar dilution method was used to detect the bacterial survival after 1 h intervention by different concentrations of patchouli alcoholin the acidic (pH 5.3) and neutral (pH 7.0) conditions; berthelot method was used to detect urease activity and RT-qPCR method was used to detect the expression changes of ureA, ureB, ureE, ureH, ureI, and nixA related urease genes. The results showed that the survival rate of H. pyloriwas not significantly changed but the urease activity was obviously decreased after intervention by different concentrations of patchouli alcohol; meanwhile, the expression levels of ureA, ureB, ureE, ureH, ureI, and nixA were decreased to different degrees. Therefore, patchouli alcohol could inhibit H. pylori urease activity in both acidic and neutral conditions, and the mechanism may be related to down-regulation of urease gene expression.

Study Type : In Vitro Study

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