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Related Concept Videos

Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

342
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

Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers

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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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Blood Studies I: ABG and VBG01:26

Blood Studies I: ABG and VBG

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Blood studies are critical in the medical field, enabling healthcare professionals to assess a patient's health status accurately. This page will focus on two significant blood studies: Arterial Blood Gas (ABG) and Venous Blood Gas (VBG).
Arterial Blood Gas (ABG)
Arterial Blood Gas (ABG) studies are crucial for assessing the lungs' ability to supply oxygen and remove carbon dioxide, reflecting the patient's ventilation status. They also help understand the kidneys' capacity to...
748
Pharmacovigilance01:19

Pharmacovigilance

996
Post-marketing surveillance is a critical component of pharmaceutical regulation, often uncovering unanticipated adverse drug reactions (ADRs) once a drug is widely used over an extended period.
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
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Quo vadis human biomonitoring?

Gabriele Sabbioni1

  • 1Institute of Environmental and Occupational Toxicology, Airolo, CH-6780, Switzerland; Università della Svizzera Italiana (USI), Research and Transfer Service, CH-6900, Lugano, Switzerland; Walther-Straub-Institut für Pharmakologie und Toxikologie, Ludwig-Maximilians-Universität München, Nussbaumstrasse 26, D-80336, München, Germany.

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Summary

Chemicals pose risks, necessitating better exposure science and risk assessment. Advancements in biomonitoring and predictive toxicology aid in evaluating health effects from chemical exposure.

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Area of Science:

  • Environmental Health Sciences
  • Toxicology
  • Biomonitoring

Background:

  • Over 450,000 synthetic chemicals are in use, raising concerns for human and environmental health.
  • Current chemical assessment is limited, with fewer than 1000 analyzed in environmental studies and 450 in biomonitoring.
  • Prioritizing chemicals for risk assessment is crucial due to their widespread presence and potential health impacts.

Purpose of the Study:

  • To review recent advancements in chemical prioritization, predictive toxicology, and biomonitoring.
  • To explore innovative approaches for evaluating health effects from chemical exposure.
  • To address challenges in exposure science and risk assessment.

Main Methods:

  • Review of recent literature on chemical prioritization and predictive toxicology.
  • Examination of advancements in genomic databases and biomonitoring techniques.
  • Analysis of challenges in interpreting biomonitoring data for exposure-health associations.

Main Results:

  • Progress in chemical prioritization and predictive toxicology offers new opportunities for comprehensive health effect analyses.
  • Biomonitoring, particularly using urinary biomarkers, detects low-level exposures but faces interpretation complexities.
  • High intra-individual variability in non-persistent chemicals complicates single-sample assessment of chronic exposure.

Conclusions:

  • Refining biomonitoring methodologies is essential to improve the reliability of exposure-health associations.
  • Linking biomonitoring data to specific health outcomes is complex due to multifactorial influences.
  • Further research is needed to overcome limitations in characterizing real-world chemical exposures and their health implications.