中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (25): 4038-4042.doi: 10.3969/j.issn.2095-4344.2014.25.018

• 生物材料基础实验 basic experiments of biomaterials • 上一篇    下一篇

芍药苷对白色念珠菌生物膜的作用

王殿明1,王健平1,杨景云2,张慧明2,刘淑红3   

  1. 1佳木斯大学附属口腔医院,黑龙江省佳木斯市 154003;2佳木斯大学基础医学院,黑龙江省佳木斯市 154007;3黑龙江省林业卫生学校,黑龙江省佳木斯市 154007
  • 收稿日期:2014-04-07 出版日期:2014-06-18 发布日期:2014-06-18
  • 通讯作者: 王健平,教授,主任医师,硕士生导师,佳木斯大学附属口腔医院,黑龙江省佳木斯市 154003
  • 作者简介:王殿明,男,1984年生,在读硕士,主要从事口腔生态研究。

Paeoniflorin effects on Candida albicans biofilms

Wang Dian-ming1, Wang Jian-ping1, Yang Jing-yun2, Zhang Hui-ming2, Liu Shu-hong3   

  1. 1The Affiliated Stomatological Hospital of Jiamusi University, Jiamusi 154003, Heilongjiang Province, China; 2School of Basic Medical Sciences, Jiamusi University, Jiamusi 154007, Heilongjiang Province, China; 3Heilongjiang Province Forestry Health School, Jiamusi 154007, Heilongjiang Province, China
  • Received:2014-04-07 Online:2014-06-18 Published:2014-06-18
  • Contact: Wang Jian-ping, Professor, Chief physician, Master’s supervisor, the Affiliated Stomatological Hospital of Jiamusi University, Jiamusi 154003, Heilongjiang Province, China
  • About author:Wang Dian-ming, Studying for master’s degree, the Affiliated Stomatological Hospital of Jiamusi University, Jiamusi 154003, Heilongjiang Province, China

摘要:

背景:研究证实中药赤芍有效成分对白色念珠菌有较好的抑制作用,但其单体芍药苷对白色念珠菌生物膜是否有抑制作用未见报道。 
目的:观察芍药苷对体外白色念珠菌生物膜的影响。
方法:用RPMI-1640分别按2倍稀释法制备5个浓度梯度(4,2,1,0.5,0.25 g/L)的芍药苷溶液。用RPMI-1640稀释洗必泰为5个浓度梯度(2%,1%,0.5%,0.25%,0.125%)。采用琼脂扩散法检测不同浓度梯度芍药苷或洗必泰对白色念珠菌的抑菌直径。MTT法检测不同浓度洗必泰或芍药苷对白色念珠菌细胞黏附的作用,以及对白色念珠菌生物膜的抑制作用,并且利用激光共聚焦扫描显微镜和死菌活菌荧光染色技术相结合方法观察常态及药物作用下的白色念珠菌生物膜。
结果与结论:洗必泰与芍药苷均有抑菌能力,抑菌环直径与药物浓度呈正相关;除2 g/L芍药苷组与1%,2%洗必泰组抑菌环直径无差异外,其余组间两两比较差异均有显著性意义。不同质量浓度芍药苷对白色念珠菌的细胞黏附都具有抑制作用,对白色念珠菌生物膜也具有抑制作用,且抑制率与药物质量浓度呈正相关。观察48 h时常态生物膜结构中大部分是活菌,有少量死菌存在;随芍药苷质量浓度改变白色念珠菌生物膜中死菌比例不断增高,其抑菌活性相对弱于洗必泰。表明芍药苷对体外白色念珠菌生物膜有较明显的抑制作用。

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中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 口腔生物材料, 芍药苷, 白色念珠菌, 生物膜, 激光共聚焦扫描显微镜

Abstract:

BACKGROUND: Studies have confirmed that the active ingredients of Paeonia lactiflora Pall. have better inhibitory effects on Candida albicans, but its monomer paeoniflorin has not been reported whether it can inhibit Candida albicans biofilm.
OBJECTIVE: To observe the effect of paeoniflorin on Candida albicans biofilm in vitro.
METHODS: Paeoniflorin solution at different concentrations of 4, 2, 1, 0.5, 0.25 g/L was prepared using RPMI-1640 according to 2-fold dilution method. Chlorhexidine was diluted with RPMI-1640 to different concentrations, including 2%, 1%, 0.5%, 0.25%, 0.125%. We compared the effects of different concentrations of chlorhexidine and paeoniflorin on diameter of Candida albicans by agar diffusion method. MTT assay was used to detect the effect of different concentrations of chlorhexidine or paeoniflorin on the cell adhesion of Candida albicans as well as their inhibitory effects on Candida albicans biofilms. Confocal laser scanning microscope and LIVE/DEAD BacLight Bacterial Viability Kits were combined to observe the changes of Candida albicans biofilms under normal or intervention conditions. 
RESULTS AND CONCLUSION: Both chlorhexidine and paeoniflorin possessed bacteriostatic ability, and their bacteriostatic ring diameters were positively correlated with drug concentrations. Significant differences in the bacteriostatic ring diameter were observed between chlorhexidine and paeoniflorin, except between 2 g/L paeoniflorin and 1%, 2% chlorhexidine. Paeoniflorin at different concentration could inhibit cell adhesion of Candida albicans as well as inhibit Candida albicans biofilm. The inhibition rate was also positively correlated with 
drug concentrations. Under normal conditions, most of bacteria in the biofilms were alive, and there was a small amount of dead bacteria after 48 hours. After intervention with paeoniflorin, the proportion of dead bacteria in the biofilms was increasing along with the concentrations of paeoniflorin. Compared with the chlorhexidine, paeoniflorin showed a lower bacteriostatic activity. These findings indicate that paeoniflorin has an obvious inhibitory action in Candida albicans biofilms in vitro.


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: biocompatible materials, Candida albicans, biofilms, drugs, Chinese herbal

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