Related Experiment Video

Updated: Feb 8, 2026

Creation of Cardiac Tissue Exhibiting Mechanical Integration of Spheroids Using 3D Bioprinting
04:40

Creation of Cardiac Tissue Exhibiting Mechanical Integration of Spheroids Using 3D Bioprinting

Published on: July 2, 2017

10.8K

Possible mechanisms behind cardiac troponin elevations

Ola Hammarsten1, Johannes Mair2, Martin Möckel3

  • 1a Department of Clinical Chemistry and Transfusion Medicine , University of Gothenburg , Gothenburg , Sweden.

Biomarkers : Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
|July 7, 2018
PubMed

Insights

Cardiac troponin (cTn) elevations can occur without heart muscle damage, impacting patient prognosis. Understanding these non-injury mechanisms is crucial for accurate clinical interpretation of cTn levels.

Area of Science:

  • Cardiology
  • Biochemistry
  • Pathology

Background:

  • Cardiac troponins (cTn) are key biomarkers for diagnosing acute myocardial infarction (AMI).
  • Elevated cTn levels are associated with poor prognosis, even without clear cardiac injury.
  • Current diagnostic approaches primarily link cTn elevation to myocardial necrosis.

Purpose of the Study:

  • To explore diverse mechanisms causing cardiac troponin elevations beyond myocardial necrosis.
  • To broaden the interpretation of unexpected cTn elevations in clinical practice.
  • To re-evaluate the diagnostic certainty of cTn as a direct indicator of myocardial necrosis.

Main Methods:

  • Literature review and mechanistic analysis of cTn release pathways.
  • Exploration of cellular processes including necrosis, apoptosis, necroptosis, and cell wounds.
  • Investigation into factors affecting cTn clearance from circulation.

Main Results:

  • Cardiac troponin elevations can result from various cellular events, not solely necrosis.
  • Mechanisms such as apoptosis, necroptosis, and cell wounds may contribute to cTn release.
  • Impaired clearance of cTn can also lead to elevated blood levels.

Conclusions:

  • Cardiac troponin elevation is not always indicative of acute myocardial infarction or necrosis.
  • Alternative mechanisms for cTn release necessitate a broader clinical interpretation.
  • Rethinking the direct diagnostic link between cTn elevation and myocardial necrosis is essential.

Keywords:
Cardiac troponin Iapoptosiscardiac troponin Tclearancemyocardial injurynecrosisreleasereversible

More Related Videos

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training07:40

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training

Published on: October 10, 2019

7.8K
Mechanical Control of Relaxation Using Intact Cardiac Trabeculae07:51

Mechanical Control of Relaxation Using Intact Cardiac Trabeculae

Published on: February 17, 2023

1.6K

Related Concept Videos

Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
2.1K
Freezing Point Depression and Boiling Point Elevation03:12

Freezing Point Depression and Boiling Point Elevation

Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
40.3K
Elevation of Intermediate Points on Vertical Curves01:20

Elevation of Intermediate Points on Vertical Curves

Vertical curves are essential in roadway design because they provide smooth transitions between varying roadway grades. Designing vertical curves involves calculating intermediate elevations and identifying the curve's highest or lowest point, which is essential for optimal roadway performance.Intermediate elevations on a vertical curve are determined using the tangent offset method. This method considers the initial elevation at the start of the curve, the grades, and the curve's geometry. The...
308
Reaction Mechanisms03:06

Reaction Mechanisms

Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
31.0K
Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
3.5K
Mechanical Protein Functions01:58

Mechanical Protein Functions

Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
5.7K