右旋氨基酸对牙龈卟啉单胞菌生物膜形成的影响 |
| |
引用本文: | 李琛 潘亚萍 林莉 刘静波 郭艳. 右旋氨基酸对牙龈卟啉单胞菌生物膜形成的影响[J]. 口腔医学, 2014, 34(1): 13-15 |
| |
作者姓名: | 李琛 潘亚萍 林莉 刘静波 郭艳 |
| |
作者单位: | 1. 中国医科大学附属口腔医院2. 中国医科大学口腔医学院3. |
| |
基金项目: | 唾液酸酶基因的缺失影响牙龈卟啉单胞菌致病性的机制研究;p21蛋白修饰对牙龈卟啉单胞菌内化上皮细胞凋亡和周期调控的研究;唾液酸酶基因的缺失影响牙龈卟啉单胞菌致病性的机制研究 |
| |
摘 要: | 目的 本实验研究右旋色氨酸、右旋亮氨酸、右旋酪氨酸和右旋蛋氨酸对牙龈卟啉单胞菌生物膜形成的影响。方法 用含有维生素K(1 μg/mL)和氯化血红素(5 μg/mL)的TSB培养基培养牙龈卟啉单胞菌W83,培养到对数生长期时1:100倍稀释后放入96孔板中,分别加入右旋色氨酸(5 mmol/L)、右旋亮氨酸(8.5 mmol/L)、右旋酪氨酸(3 μmol/L)和右旋蛋氨酸(2 mmol/L),厌氧培养7 d后结晶紫染色,双蒸水冲洗,干燥后乙醇脱色,紫外分光光度计检测。 结果 加入右旋色氨酸、右旋亮氨酸、右旋酪氨酸和右旋蛋氨酸及空白对照组的吸收值分别为3.70 ± 0.06, 2.74 ± 0.18, 0.71 ± 0.04,3.42 ± 0.02,和3.65 ± 0.01。与空白对照组相比较,加入右旋亮氨酸组吸收值小,并有统计学差异(P < 0.01)。 结论 右旋亮氨酸能够减少牙龈卟啉单胞菌生物膜形成。
|
关 键 词: | 右旋氨基酸 牙龈卟啉单胞菌 生物膜 D-animo acid Porphyromonas gingivalis biofilm formation |
收稿时间: | 2013-06-26 |
The effect of D-animo acid on Porphyromonas gingivalis biofilm formation |
| |
Abstract: | Objective To study the effect of D-Tryptophan, D-Leucine, D-tyrosine, and D-Methionine on the formation of biofilm Porphyromonas gingivalis (P. gingivalis) W83. Method: P. gingivalis W83 were cultured in Trypticase soy broth (TSB) supplemented with vitamin K (1μg/ml) and hemin (5 μg/ml) to mid-log phase, and then were diluted 1:100 in 96 well flat-bottom poltstyrene plates and add D-Tryptophan (5mmol/L), D-Leucine (8.5 mmol/L), D-tyrosine (3μmol/L), and D-Methionine (2mmol/L). The biofilms were stained with 25μl of 1% crystal violet, washed with ddH2O and dissolved in ethanol. The absorbance was measured with xMark microplate spectrophotometer at 570nm. Result: The absorbance of P. gingivalis W83 in TSB, D-Tryptophan, D-Leucine, D-tyrosine, and D-Methionine were 3.70 ± 0.06, 2.74 ± 0.18, 0.71 ± 0.04, 3.42 ± 0.02, and 3.65 ± 0.01 respectively. There was significance difference between TSB and D-Leucine groups (p<0.01). Conclusion D-Leucine (8.5 mmol/L) can reduce the biofilm formation of P. gingivalis W83. |
| |
Keywords: | |
|
| 点击此处可从《口腔医学》浏览原始摘要信息 |
|
点击此处可从《口腔医学》下载全文 |
|