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Related Concept Videos

Biological Methods for Microbial Control01:28

Biological Methods for Microbial Control

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Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
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Microorganisms in Medicine and Therapeutics01:29

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Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
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Helicobacter pylori, a resilient gram-negative bacterium, can thrive in the stomach's harsh, acidic environment. Infection with H. pylori leads to a cascade of events within the stomach lining. One of the critical disruptions caused by this bacterium is the interference with somatostatin production, a hormone responsible for regulating acid secretion. This interference tips the balance, escalating acid secretion and diminishing bicarbonate levels. This imbalance compromises the defensive...
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The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
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Surface Membrane Barriers01:18

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The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
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Antimicrobial Proteins01:23

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Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
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Targeted antimicrobial therapy in the microbiome era.

V N Stone1, P Xu1,2,3

  • 1Philips Institute for Oral Health Research, Virginia Commonwealth University, Richmond, VA, USA.

Molecular Oral Microbiology
|June 14, 2017
PubMed
Summary

Targeting specific oral pathogens like Porphyromonas gingivalis and Streptococcus mutans offers a novel approach to treating oral diseases. This strategy aims to restore a healthy oral microbiome by eliminating harmful bacteria while preserving beneficial flora.

Keywords:
antibiotic resistanceantibioticsmicrobiomeoral healthselective drug target

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Area of Science:

  • Microbiology
  • Oral Health
  • Antimicrobial Therapy

Background:

  • The oral microbiome, though complex, is a key model for targeted antimicrobial treatments.
  • Microbiome disruption can lead to dysbiosis, promoting oral pathogens and diseases like periodontitis and dental caries.
  • Porphyromonas gingivalis and Streptococcus mutans are significant pathogens in periodontitis and caries, respectively.

Purpose of the Study:

  • To review novel strategies for narrow-spectrum antimicrobial therapy in the oral microbiome.
  • To explore methods for selectively targeting key periodontal pathogens.
  • To identify requirements for successful pathogen-targeted therapies in the current microbiome era.

Main Methods:

  • Review of current literature on oral microbiome research.
  • Analysis of strategies for narrow-spectrum antimicrobial approaches.
  • Examination of pathogen-specific targeting mechanisms.

Main Results:

  • Selective targeting of pathogens may allow for treatment of oral infections.
  • This approach could facilitate the recolonization of beneficial oral flora.
  • Successful implementation requires understanding pathogen-specific vulnerabilities.

Conclusions:

  • Developing targeted antimicrobial strategies is crucial given the decline in antibiotic research.
  • Selective elimination of pathogens like P. gingivalis and S. mutans is a promising therapeutic avenue.
  • Further research is needed to define the requirements for successful microbiome-era oral therapies.