您现在的位置:首页>美国卫生研究院文献>Advances in Dental Research

期刊信息

  • 期刊名称:

    -

  • 刊频: Irregular
  • NLM标题: Adv Dent Res
  • iso缩写: -
  • ISSN: -

年度选择

更多>>

  • 排序:
  • 显示:
  • 每页:
全选(0
<3/3>
44条结果
  • 机译 木糖醇和满足公共卫生需求的木糖醇载体的研究进展
    摘要:Xylitol has been demonstrated to be a safe and effective tooth decay preventive agent when used habitually. Nevertheless, its application has been limited by absence of formulations that demand minimal adherence and are acceptable and safe in settings where chewing gum may not be allowed. A substantial literature suggests that a minimum of five to six grams and three exposures per day from chewing gum or candies are needed for a clinical effect. At the same time there is conflicting evidence in the literature from toothpaste studies suggesting that lower-doses and less frequent exposures might be effective. The growing use of xylitol as a sweetener in low amounts in foods and other consumables is, simultaneously, increasing the overall exposure of the public to xylitol and may have additive benefits.
  • 机译 破坏致龋生物膜的机会
    摘要:Bacteria adhere to a surface and, through cell division and coordinated expression of gene products, to develop into a structurally-complex population of adherent cells. This process, known as biofilm formation, requires that intrinsic and extrinsic signals are transduced into appropriate gene expression patterns as biofilms mature. Mutational analysis has begun to reveal the complexity of systems used by Streptococcus mutans to ensure proper biofilm formation. These studies have revealed new and unique targets for the design of broadly-effective anti-caries strategies.
  • 机译 通过调节口腔微生物生态实现益生菌作用
    摘要:Unlike many pathogens are foreign invaders, oral “pathogens” such as Streptococcus mutans are part of the “normal” oral microbial flora. While they express certain pathogenic properties, the balance of synergistic and antagonistic interactions determines whether these çommensal pathogens cause damage or not. Recognition of these microbial ecology based pathogeneses argues for new strategies for disease treatment and prevention.Probiotics, potentially beneficial live bacteria or yeasts, have been used to combat dental caries. This includes the application of S. mutans types that cannot produce acids or other bacteria that interfere with the pathogenic effects of S. mutans. While these approaches show therapeutic effects against S. mutans experimentally, the conversion into commercial products remains a challenge, due to safety and shelf life issues. New high-tech approaches, such as quorum sensing interference of pathogenic bacteria or targeted antimicrobial therapies, offer novel ways to achieve probiotic effects against dental caries.
  • 机译 全基因组牙科病原体的遗传和分子表征
    摘要:Actinobacillus actinomycetemcomitans causes periodontitis, a costly chronic infection that affects a large number of patients. The pathogenesis of this dental infection is a multifactorial process that results in a serious degenerative disease of the periodontium. Although significant progress has been achieved after the identification of this gram-negative bacterium as the etiological agent of this infection, much remains to be done to understand in detail the bacterial factors and host-pathogen interactions involved in the pathogenesis of this disease. Classical research approaches have resulted in the identification of important virulence factors and cellular processes, although they have provided a rather narrow picture of some of steps of this complex process. In contrast, a much wider picture could be obtained with the application of tools such as bioinformatics and genomics. These tools will provide global information regarding the differential expression of genes encoding factors and processes that lead to the pathogenesis of this disease. Furthermore, comparative genomics has the potential of helping to understand the emergence and evolution of this human pathogen. This genome-wide approach should provide a more complete picture of the pathogenesis process of this disease, and will facilitate the development of efficient diagnostic, preventive, and therapeutic measures for this disease.

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号