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Related Concept Videos

Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

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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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Key Techniques in Microbiology01:29

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Aseptic techniques prevent contamination, ensure experimental accuracy, and protect researchers and microbial cultures. These techniques are essential in clinical, industrial, and research settings where sterility is required.Maintaining Sterility in Laboratory PracticesScientists maintain sterility by sterilizing tools with heat or chemicals, disinfecting work surfaces, and handling cultures in controlled environments. Working near an open flame or within a laminar flow hood reduces the risk...
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Microorganisms display remarkable adaptations, enabling them to thrive in diverse ecological niches across a wide range of temperatures. Temperature profoundly influences microbial growth by affecting enzymatic activity, membrane fluidity, and other cellular processes.Each microorganism operates within a specific temperature range defined by three cardinal points: minimum, optimum, and maximum. Below the minimum temperature, membranes lose fluidity, halting transport processes. Above the...
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Environmental Applications of Microorganisms01:30

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Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
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History of Microbiology01:28

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Microbiology, a scientific field dedicated to the study of microorganisms, has undergone profound development since its inception in the 17th century. Its history is marked by key discoveries and technological advancements that have shaped our understanding of life at the microscopic level and transformed medicine, agriculture, and industry.Early Foundations of MicrobiologyThe early foundations of microbiology were built on groundbreaking observations and the development of pioneering...
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The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
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Microbial persisters and host: recent advances and future perspectives.

Chuan Wang1, Lijian Jin

  • 1Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.

Critical Reviews in Microbiology
|September 27, 2022
PubMed
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Microbial persisters are resilient cells that tolerate antibiotics, causing treatment failure. Understanding their interaction with host cells is key to developing new therapies for chronic infections.

Keywords:
Microbial persisterschronic infectionseradicationmicrobe–host interactionsresuscitation

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Drug Tolerance

Background:

  • Microbial persisters are a small sub-population of microorganisms exhibiting high tolerance to antimicrobials.
  • Distinguishing persister cells from other drug-tolerant microorganisms remains a significant challenge.
  • Persisters contribute to prolonged antibiotic exposure, treatment failure, and the development of antibiotic-resistant mutants.

Purpose of the Study:

  • To highlight the importance of understanding microbial persisters for infection control.
  • To review advances in persister research, technologies, and anti-persister strategies.
  • To identify critical unsolved issues, including host-persister interactions and clinical applications.

Main Methods:

  • Review of recent scientific literature on microbial persisters.
  • Analysis of advancements in persister investigation technologies and methodologies.
  • Exploration of existing and potential anti-persister approaches.

Main Results:

  • Significant progress has been made in understanding persister biology and developing anti-persister strategies over the past two decades.
  • Critical knowledge gaps persist regarding host-persister interactions and the translation of findings to clinical practice.
  • Numerous anti-persister approaches have been developed, but their efficacy requires further investigation.

Conclusions:

  • Further research into microbial persisters is crucial for preventing and controlling chronic infections and inflammation.
  • Understanding the complex cross-talk between microbial persisters and host cells is essential for developing novel precision healthcare strategies.
  • Translational studies and clinical applications of persister knowledge are vital for future therapeutic development.