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Related Experiment Videos

Plasma endotoxin in typhoid fever

I G Suyasa1, I G Reka, K Inada

  • 1Department of Microbiology, Faculty of Medicine, Udayana University, Bali, Indonesia.

The Kobe Journal of Medical Sciences
|October 1, 1995
PubMed
Summary
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This study shows that endotoxin assays are useful for diagnosing typhoid fever. A new plasma pretreatment method improved endotoxin detection in sepsis and typhoid fever patients.

Area of Science:

  • Clinical Microbiology
  • Biochemistry

Background:

  • Sepsis and typhoid fever are serious infections.
  • Accurate diagnosis relies on detecting microbial components like endotoxin.
  • Conventional methods for endotoxin detection in plasma can be limited.

Purpose of the Study:

  • To evaluate the utility of endotoxin assays for diagnosing typhoid fever.
  • To compare two chromogenic limulus tests (Endospecy and Toxicolor) for endotoxin detection.
  • To assess the effectiveness of a novel plasma pretreatment method (PCA) for enhancing endotoxin detection.

Main Methods:

  • Plasma samples from sepsis and typhoid fever patients were analyzed using Endospecy and Toxicolor tests.
  • A new plasma pretreatment method (PCA) was employed before testing.

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  • Detection of endotoxin and (1,3)-beta-D-glucan was performed.

    • Main Results:

    • The new PCA method improved detection of lower endotoxin amounts.
    • Endotoxin levels were similar between Endospecy and Toxicolor tests in most patients, except in a fatal septic shock case.
    • Endotoxemia was detected in 61.1% of typhoid fever cases, with higher incidence within the first four days of illness.

    Conclusions:

    • Endotoxin assays, particularly with the improved PCA method, show promise as a diagnostic tool for typhoid fever.
    • The study highlights the prevalence of endotoxemia in typhoid fever patients.
    • Further research may refine endotoxin detection for clinical diagnostics.