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Microbial profiling of combat wound infection through detection microarray and next-generation sequencing.

Nicholas A Be1, Jonathan E Allen2, Trevor S Brown3

  • 1Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California, USA be1@llnl.gov jaing2@llnl.gov.

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|May 16, 2014
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Summary
This summary is machine-generated.

Genomic technologies reveal diverse microbes in combat wounds, with specific bacteria like Acinetobacter baumannii impacting healing outcomes. Molecular methods are crucial for comprehensive wound microbiome analysis.

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Area of Science:

  • Microbiology
  • Genomics
  • Wound Healing Research

Background:

  • Combat wound healing is significantly influenced by the resident microbial flora.
  • Standard microbiological methods may not fully characterize the complex microbial populations in wounds.

Purpose of the Study:

  • To comprehensively detect microbial populations in combat wounds using novel genomic technologies and bioinformatics.
  • To correlate microbial detection with wound healing outcomes in combat-injured service members.

Main Methods:

  • Utilized a microarray for pathogen detection in 124 extremity wound samples.
  • Employed next-generation sequencing and metagenomic analysis on a subset of samples.
  • Correlated microbial findings with wound failure and successful healing data.

Main Results:

  • Microbial targets were detected in 51% of wound samples, with Acinetobacter baumannii being most frequent.
  • Detection of Acinetobacter plasmid pRAY correlated with wound failure; enteric bacteria associated with healing.
  • Whole-genome sequencing showed significant microbial biodiversity, but total bioburden did not correlate with outcomes.

Conclusions:

  • Molecular techniques supplement standard methods for thorough wound microbiome characterization.
  • Genomic approaches can enable specialized care through early identification of critical microbial patterns.
  • Understanding the wound microbiome is essential for improving combat wound healing and resolution.