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Related Concept Videos

Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

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Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
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Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
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Antifungal Agents01:15

Antifungal Agents

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Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to...
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Updated: May 2, 2026

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New Diagnostics for Fungal Infections in Transplant Infectious Disease: A Systematic Review.

Apurva Akkad1, Neha Nanda1

  • 1Division of Infectious Disease, Department of Medicine, Keck School of Medicine, University of Southern California, 1500 San Pablo St., Los Angeles, CA 90033, USA.

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|January 24, 2025
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Molecular diagnostics like metagenomic sequencing aid in diagnosing fungal infections in transplant patients. Further research is needed to fully implement these advanced tools in clinical practice.

Keywords:
fungal diagnosticsgas chromatographymagnetic resonancemetagenomic sequencingmolecular diagnosticstransplant infectious disease

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Area of Science:

  • Medical diagnostics
  • Mycology
  • Transplant medicine

Background:

  • Fungal infections pose a significant risk to immunosuppressed solid organ transplant recipients.
  • Timely diagnosis of fungal infections in this vulnerable population remains a clinical challenge.

Purpose of the Study:

  • To review current molecular diagnostic methods for fungal infections in solid organ transplant recipients.
  • To assess the utility of metagenomic sequencing, magnetic resonance, and gas chromatography mass spectrometry for diagnosing specific fungal syndromes.
  • To evaluate the evidence supporting these diagnostic platforms using STARD criteria and suggest future research directions.

Main Methods:

  • Systematic review of studies on molecular diagnostics for fungal infections.
  • Focus on metagenomic sequencing, magnetic resonance, and gas chromatography mass spectrometry.
  • Assessment of diagnostic utility for fungemia, pneumonia, and CNS infections using STARD criteria.

Main Results:

  • Directed polymerase chain reaction and targeted metagenomic sequencing show clinical promise but require integration with conventional methods.
  • Limited data currently exists for most molecular diagnostic platforms.
  • Further large-scale studies are necessary for proper clinical implementation.

Conclusions:

  • Molecular diagnostics offer potential advancements in identifying fungal infections in transplant patients.
  • Current evidence is limited, necessitating more extensive research.
  • Future directions involve validating and integrating these technologies into routine clinical practice.