华西口腔医学杂志

• 临床研究 • 上一篇    下一篇

美兰对变形链球菌及菌斑抑制的实验研究

王成龙1,刘洪臣1,李振钢2,沈世杰3,储冰峰1,赵 皿4,黄力子4   

  1. 1.中国人民解放军总医院 口腔科;2.医疗处,北京100853; 3.中国人民解放军军事医学科学院 仪器中心,北京100850;4.第四军医大学口腔医院 口腔内科,陕西 西安710032
  • 收稿日期:2005-10-25 修回日期:2005-10-25 出版日期:2005-10-20 发布日期:2005-10-20
  • 通讯作者: 王成龙,Tel:010-66937964
  • 作者简介:王成龙(1966-),男,安徽人,主治医师,博士

Inhibition Effect of Methylene Blue on the Acids Production ofStreptococcus mutans

WANG Cheng-long1,LIUHong- chen1,LI Zhen-gang2,SHEN Shi-jie3,CHU Bing-feng1,ZHAO Min4,HUANG Li-zi4   

  1. 1.Dept.ofStomatology,General Hospital ofPLA,Beijing100853,China;2.Dept.ofMedicalAffairs,GeneralHospital ofPLA,Beijing100853,China;3.Cen- ter ofExperimentInstrument,Academy ofMilitaryMedicalSciences,Beijing100850,China; 4.Dept.ofOralMedicine,Colleg of Stomatology,The Fourth MilitaryMedical University,Xi′an710032,China
  • Received:2005-10-25 Revised:2005-10-25 Online:2005-10-20 Published:2005-10-20

摘要:

的 研究美兰对变形链球菌生长和产酸代谢的作用以及对体外菌斑糖酵解模型产酸代谢的作用,以探讨美兰防龋的可行性。方法 采用比浊法测定不同培养条件下变形链球菌培养液的OD值;采用气相色谱法检测不同培养条件下变形链球菌培养液中有机酸的种类和数量;测定不同处理条件下体外菌斑糖酵解模型产酸液的 pH值。结果 (1)美兰组细菌OD值低于生理盐水组,二者之间的差异具有统计学意义;(2)不同血清型变形链球菌的3个处理组中均可检测到有机酸的产生,葡萄糖组有机酸的总量最多,美兰组有机酸的总量最少;(3)美兰组产酸液的pH值与阴性对照组之间的差异有统计学意义,与阳性对照组之间的差异无统计学意义。结论 美兰可以抑制变形链球菌的生长、产酸代谢以及菌斑的产酸代谢。

关键词: 美兰, 链球菌,变异, 生长, 产酸, 龋病预防

Abstract: Objective To study the effect of methylene blue on the growth and acid production ofStreptococcus mutans, and the effect ofmethylene blue on acid productionmetabolism in plaque glycolysismodel (i-PGM)invitro, and investigate the practi- cability of methylene blue as a new kind of dental caries prevention agent.Methods Nephelometer method was used to measure OD value ofStreptococcus mutansculture fluid in the different incubation conditions. The kinds and quantities of acid produced by Streptococcus mutansin the different incubation conditions were measured with gas chromatography. pH values of glycolysis buffer media of i-PGMin the differenttreatment conditionswere measured byORIONelectrode.Results ①The OD value ofStreptococ- cus mutanstreated by methylene blue was lower than that by normal saline, and there was significant statistical difference between them.②The kinds of acid in three different culture fluid were same, but the total quantities of acid were significantly different among three different culture fluid, in which the total quantities of acid of culture fluids treated by glucose was the greatest, and treated by methylene blue was the lest.③The pH value of i-PGMtreated by methylene blue was significantly different compared with negative control group, butwas not significantly different compared with positive control group.Conclusion Methylene blue can inhibit the growth and acid production metabolism ofStreptococcus mutansand acid production metabolism of i-PGM.

Key words: methylene blue, Streptococcus mutans, growth, acid production, dental caries prevention