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Related Concept Videos

Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

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Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
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Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers01:19

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Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
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Microbial Biosensors01:17

Microbial Biosensors

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Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
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Related Experiment Video

Updated: Apr 20, 2026

Evaluation of a Reliable Biomarker in a Cecal Ligation and Puncture-Induced Mouse Model of Sepsis
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Sepsis biomarkers.

Miroslav Prucha1, Geoff Bellingan2, Roman Zazula3

  • 1Department of Clinical Biochemistry, Hematology and Immunology, Hospital Na Homolce, Prague, Czech Republic.

Clinica Chimica Acta; International Journal of Clinical Chemistry
|December 3, 2014
PubMed
Summary

Sepsis remains a leading cause of death in intensive care units (ICUs). While diagnostics improve, many sepsis biomarkers lack the sensitivity and specificity for routine clinical use.

Keywords:
BiomarkersSIRSSensitivitySepsisSpecificity

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Area of Science:

  • Critical Care Medicine
  • Clinical Pathology
  • Biomarker Discovery

Background:

  • Sepsis is a leading cause of mortality in non-coronary intensive care units (ICUs).
  • Despite advancements in early identification and treatment, sepsis mortality rates remain high.
  • Laboratory diagnostics for sepsis are complex and require rapid turnaround times.

Purpose of the Study:

  • To review the current epidemiology, pathogenesis, and diagnostic utility of sepsis biomarkers.
  • To assess the state-of-the-art biochemical, hematological, and immunological parameters for sepsis diagnosis.
  • To briefly mention prospective approaches for novel diagnostic biomarker discovery.

Main Methods:

  • Literature review of current sepsis epidemiology and pathogenesis.
  • Analysis of existing diagnostic biomarkers, including biochemical, hematological, and immunological parameters.
  • Exploration of criteria for ideal sepsis biomarkers (sensitivity, specificity, bedside monitoring, cost-effectiveness).

Main Results:

  • Many potential sepsis biomarkers lack sufficient sensitivity or specificity for routine clinical application.
  • Current diagnostic approaches face challenges due to the complexity and speed required for laboratory investigations.
  • A limited fraction of identified biomarkers are utilized in standard clinical practice.

Conclusions:

  • There is an ongoing need for highly sensitive and specific sepsis biomarkers that are suitable for bedside monitoring and are cost-effective.
  • Further research into novel diagnostic biomarkers is crucial to improve sepsis patient outcomes.
  • Optimizing laboratory diagnostic strategies is essential to manage the demands of sepsis detection.