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suspected periodontal pathogens
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  牙周可疑致病菌
     The Neutralizing Effect of Histidine-rich-polypeptides on LPS from Suspected Periodontal Pathogens
     富组蛋白中和牙周可疑致病菌内毒素作用的实验研究
短句来源
  周可疑病原菌
     Variation of suspected periodontal pathogens and clinical periodontal index in patients before and after fixed appliance bonding
     固定矫治器戴入前后牙周可疑病原菌和牙周临床指数的变化
短句来源
     Objective: Through the examination of flora in gingival marginal plaque and periodontal status at different time intervals before and after fixed appliance bonding,in order to analysis the dynamic variation of suspected periodontal pathogens and clinical periodontal index.
     目的 :固定矫治器戴入前后的不同时间进行龈缘菌斑的微生物学检查和牙周状况的临床检查 ,以探讨固定矫治器戴入前后牙周可疑病原菌和牙周状况的动态变化过程。
短句来源
     Methods:18 orthodontic subjects were selected. Plaque index(PI),gingival index(GI),probing depths(PD) and bleeding on probing(BOP) of observed teeth,16 and 41,were examined and gingival marginal plaque samples were collected at different time intervals:baseline,1 months,3 months,6 months after the bonding. The detective amount and detective ratio of suspected periodontal pathogens were assayed by cultivation,respectively.
     方法 :选择 18名固定正畸患者 ,于矫治器戴入前和戴入后 1、3、6月分别检查 16、4 1牙位的菌斑指数、牙龈指数、探诊深度、探诊出血 ,并在近中颊侧颊轴角处采集龈缘菌斑样本 ,采用细菌培养鉴定方法测定牙周可疑病原菌的检出量 (CFU/g)和检出率。
短句来源
     Conclusion:In spite of strict oral hygiene instructions the amount of suspected periodontal pathogens also increases after fixed appliance bonding,although the dental plaque could be effectively controlled.
     结论 :固定矫治器戴入后虽然可通过严格的口腔卫生指导有效控制牙面菌斑 ,但仍可引起牙周可疑病原菌增加。
短句来源
  “suspected periodontal pathogens”译为未确定词的双语例句
     Bacteriocin Extracted from Streptococcus Sanguis and Its Effect on Suspected Periodontal Pathogens
     血液链球菌细菌素的提取及其对牙周致病菌的抑制作用
短句来源
  相似匹配句对
     Analysis of relationship between periodontal abscess and suspected pathogens
     牙周可疑致病微生物与牙周脓肿发病相关性分析
短句来源
     Bacteriocin Extracted from Streptococcus Sanguis and Its Effect on Suspected Periodontal Pathogens
     血液链球菌细菌素的提取及其对牙周致病菌的抑制作用
短句来源
     AIM:To find the relationship betwen suspected pathogens and periodontal abscess.
     目的:分析比较牙周脓肿与常见牙周可疑致病微生物的关系。
短句来源
     The Antibiosis of Bifidobacterium on Periodontal Pathogens
     双岐杆菌对牙周病原菌的体外抗生作用
短句来源
     The Neutralizing Effect of Histidine-rich-polypeptides on LPS from Suspected Periodontal Pathogens
     富组蛋白中和牙周可疑致病菌内毒素作用的实验研究
短句来源
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  suspected periodontal pathogens
A steadily increasing number of reports indicates that suspected periodontal pathogens-such as A.
      


Objective To evaluate the prevalence of subgingival taxa of periodontal healthy persons and rapidly progressive periodontitis (RPP) patients using checkerboard DNA-DNA hybridization and to find the main pathogens in RPP. Methods Eighty four subgingival plaque DNA samples taken from 5 healthy subjects (H) and 6 RPP patients were hybridizated with 37 bacterial probes. Results The detection frequences of 6 bacteria (E.corrodens, et al.) were greater than 90%. Suspected periodontal pathogens,...

Objective To evaluate the prevalence of subgingival taxa of periodontal healthy persons and rapidly progressive periodontitis (RPP) patients using checkerboard DNA-DNA hybridization and to find the main pathogens in RPP. Methods Eighty four subgingival plaque DNA samples taken from 5 healthy subjects (H) and 6 RPP patients were hybridizated with 37 bacterial probes. Results The detection frequences of 6 bacteria (E.corrodens, et al.) were greater than 90%. Suspected periodontal pathogens, e.g. A. actinomycetemcomitans seratype b, T.denticola, F.nucleatum ss nucleatum, B.forsythus, P.nigrescens, W. succinogenes, C.rectus, P.micros, S.intermedius and P.gingivalis were significantly more frequantly found in RPP group than in H group. The mean counts of these pathogens were significantly more elevated in RPP group than in H group. Conclusion It is suggested that periodontal destruction occurrence requires the pathogens in sufficient number at the site, RPP may be resulted from several pathogens.

目的检测牙周健康者和快速进展性牙周炎(rapidlyprogressiveperiodontitis,RPP)患者的龈下细菌,旨在寻找RPP的主要致病菌。方法采用棋盘式DNADNA杂交技术,将5名牙周健康者和6例RPP患者的84个龈下菌斑DNA样本与37种龈下细菌的DNA探针杂交。结果埃氏腐蚀菌等6种细菌的检出率高于90%。牙周可疑致病菌,如伴放线放线杆菌血清b型、牙密螺旋体、具核梭杆菌具核梭亚种、佛赛类杆菌、变黑普菌、产琥珀酸沃廉菌、直弯曲菌、微小消化链球菌、中间链球菌和牙龈卟啉菌,在RPP组的检出率和细菌数均显著高于牙周健康组。结论牙周致病菌具备一定数量才能引起牙周组织的破坏,RPP是由多种致病菌所致

Objective:Human parotid histidine rich polypeptides (HRPs) are a family of lowmolecular weight, cationic polypeptides. HRP 1, HRP 3 and HRP 5 comprise 85%~90% of the total HRPs and are called major HRPs. There were many researches indicating the antimicrobial activities of HRPs. Recently, HRPs were reported to have an inhibitory action on the lipopolysaccharide (LPS) of E.coli, with HRP 5 being the most effective one among the three major HRPs. Since the LPS of oral gram negative bacteria is thought...

Objective:Human parotid histidine rich polypeptides (HRPs) are a family of lowmolecular weight, cationic polypeptides. HRP 1, HRP 3 and HRP 5 comprise 85%~90% of the total HRPs and are called major HRPs. There were many researches indicating the antimicrobial activities of HRPs. Recently, HRPs were reported to have an inhibitory action on the lipopolysaccharide (LPS) of E.coli, with HRP 5 being the most effective one among the three major HRPs. Since the LPS of oral gram negative bacteria is thought to be one of the important etiological factors during the development of periodontal diseases, our experiment was aimed to investigate the neutralizing effect of human parotid HRP 5 on the LPS of anaerobic suspected periodontal pathogens, which have different chemical structures and biological activities compared with LPS of aerobic E.coli.Methods: By using of preparative acid urea polyacrylamide gel electrophoresis (AU PAGE), HRP 5 was purified from parotid saliva collected from healthy adults. Two stains of suspected periodontal pathogens, Porphyromonas gingivalis (P.g, 47 A) and Fusobacterium nuceatum (F.n, separated from subgingival plaque of a patient with adult periodontitis) were mass cultured. After harvested in the midlogarithmic phase, they were washed and lyophilized. The LPS of dried bacteria were extracted by the modified Westphal hot phenol water procedures and purified by the enzyme digestion plus ultracentrifugation. Limulus test was applied to test the neutralizing effect of HRP 5 on the LPS induced gelation of Limulus amoebocyte lysate. In brief, the standard LPS of E.coli. or extracted LPS of P.g or F.n, was preincubated with HRP 5 in a tube separately in room temperature for 10 minutes. Then the reagent of Limulus amoebocyte lysate was added in all the tubes, continued the incubation in 37℃ for one hour. After that, the gelation level of every tube was observed. Results: LPS extracted from P.g and F.n both showed good purity and strong activities to induce gelation of Limulus amoebocyte lysate. The gelation induced by LPS (1ng/ml) of these two anaerobic suspected periodontal pathogens were weakly inhibited by HRP 5 (10μg/ml),\ similar to that observed with standard LPS of E.coli.\ To get a complete neutralizing effect on LPS, it may be important to increase the concentration of HRP 5.Conclusion: It appeared that HRPs could neutralize the endotoxic properties of LPS of suspected periodontal pathogens, therefore may contribute to periodontal health.\ The pre sent investigation further confirmed that HRPs are important components of the host non immune defense system.\;

目的 :研究人腮腺唾液富组蛋白对牙周可疑致病菌内毒素的中和作用。方法 :采用改良Westphal热酚水法提取并纯化牙龈卟啉菌 (4 7 A株 )和具核梭杆菌 (临床分离株 )的内毒素 ,用鲎试验试管法观察HRP 5对这两株细菌的内毒素的中和作用。结果 :在本实验条件下 ,HRP 5 (10 μg/ml)能轻度抑制大肠杆菌、牙龈卟啉菌及具核梭杆菌的内毒素 (1ng/ml)的鲎活性。结论 :相同浓度的HRP 5对需氧的大肠杆菌和专性厌氧的牙龈卟啉菌及具核梭杆菌的内毒素 ,具有相同的中和作用 ,提示富组蛋白可能在维护牙周健康中发挥一定作用。

Objective: Through the examination of flora in gingival marginal plaque and periodontal status at different time intervals before and after fixed appliance bonding,in order to analysis the dynamic variation of suspected periodontal pathogens and clinical periodontal index.Methods:18 orthodontic subjects were selected.Plaque index(PI),gingival index(GI),probing depths(PD) and bleeding on probing(BOP) of observed teeth,16 and 41,were examined and gingival marginal plaque samples were collected at different...

Objective: Through the examination of flora in gingival marginal plaque and periodontal status at different time intervals before and after fixed appliance bonding,in order to analysis the dynamic variation of suspected periodontal pathogens and clinical periodontal index.Methods:18 orthodontic subjects were selected.Plaque index(PI),gingival index(GI),probing depths(PD) and bleeding on probing(BOP) of observed teeth,16 and 41,were examined and gingival marginal plaque samples were collected at different time intervals:baseline,1 months,3 months,6 months after the bonding.The detective amount and detective ratio of suspected periodontal pathogens were assayed by cultivation,respectively.Results:Compared with baseline,the detective amount and detective ratio of black-pigmented gram negative anaerobic rod(BPAR) increases at both observed teeth during the survey( P <0.05),and eubacterium,campylobacter,bacteroides and prevotella increase at 41 ( P <0.05).The total amount of the bacteria doesn't show significant changes.Gingival index(buccal side) of 41 decreases.Conclusion:In spite of strict oral hygiene instructions the amount of suspected periodontal pathogens also increases after fixed appliance bonding,although the dental plaque could be effectively controlled.

目的 :固定矫治器戴入前后的不同时间进行龈缘菌斑的微生物学检查和牙周状况的临床检查 ,以探讨固定矫治器戴入前后牙周可疑病原菌和牙周状况的动态变化过程。方法 :选择 18名固定正畸患者 ,于矫治器戴入前和戴入后 1、3、6月分别检查 16、4 1牙位的菌斑指数、牙龈指数、探诊深度、探诊出血 ,并在近中颊侧颊轴角处采集龈缘菌斑样本 ,采用细菌培养鉴定方法测定牙周可疑病原菌的检出量 (CFU/g)和检出率。结果 :与基线相比 ,观察期内龈缘菌斑的G-产黑色素厌氧杆菌检出量和检出率在两个牙位均升高 (P <0 0 5 ) ,4 1的优杆菌、弯曲杆菌、拟杆菌、普氏菌亦有升高 (P <0 0 5 )。临床指标中 16的牙龈指数 (颊侧 )和探诊深度 (颊、舌侧 )升高 ;4 1的菌斑指数 (舌侧 )降低 (P <0 0 5 )。结论 :固定矫治器戴入后虽然可通过严格的口腔卫生指导有效控制牙面菌斑 ,但仍可引起牙周可疑病原菌增加。

 
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