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Related Concept Videos

Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

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Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
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Pathophysiology of Heart Failure01:17

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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
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Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

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Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
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Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

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Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
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What is Cell Signaling?

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Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
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Updated: Oct 21, 2025

Viral Transgene Expression in Rodent Hearts and the Assessment of Cardiac Arrhythmia Risk
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Connecting different heart diseases through intercellular communication.

Tania Martins-Marques1,2,3

  • 1Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, 3000-548 Coimbra, Portugal.

Biology Open
|September 8, 2021
PubMed
Summary
This summary is machine-generated.

Intercellular communication networks are crucial for heart health and repair. Understanding these cardiac cell communication pathways, including gap junctions and extracellular vesicles, is key for developing new therapies.

Keywords:
Cardiac hypertrophyCell-based therapiesExtracellular vesiclesGap junctionsMyocardial infarctionTunneling nanotubes

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Area of Science:

  • Cardiovascular Biology
  • Cellular Communication
  • Regenerative Medicine

Background:

  • Cardiac homeostasis relies on intricate intercellular communication networks.
  • These networks involve direct (gap junctions, tunneling nanotubes) and indirect (extracellular vesicles, ECM) interactions.
  • Disruptions in cardiac cell crosstalk are implicated in heart diseases like myocardial infarction and hypertrophy.

Purpose of the Study:

  • To provide a critical perspective on the mechanisms regulating cardiac cellular crosstalk.
  • To highlight the importance of intercellular communication in heart repair and disease.
  • To explore the potential of targeting these networks for future therapeutic strategies, particularly cell-based therapies.

Main Methods:

  • This review synthesizes current knowledge on cardiac intercellular communication mechanisms.
  • It critically analyzes the roles of direct and indirect cell-cell interactions.
  • The review discusses the implications of these mechanisms for cardiac pathophysiology and therapeutic development.

Main Results:

  • Gap junctions facilitate electrical impulse propagation for synchronized heart beating.
  • Tunneling nanotubes enable organelle transfer, potentially offering cardioprotection.
  • Extracellular vesicles and extracellular matrix interactions play diverse roles in cardiac function, repair, and disease.

Conclusions:

  • A comprehensive understanding of cardiac intercellular communication is essential for addressing heart disorders.
  • Targeting cell communication pathways offers promising avenues for novel therapeutic interventions.
  • Cell-based therapies represent a key area for future development in cardiac regenerative medicine.