[Volume regulated anion channel and ischemia/reperfusion injury of myocardium]

Ping Li1, Xiaoli Sun

  • 1Department of Emergency, China-Japan Union Hospital, Jilin University, Changchun 130033, China.

Insights

Volume-regulated anion channels (VRAC) are crucial in heart disease. Understanding VRAC

Area of Science:

  • Physiology
  • Molecular Biology
  • Cardiovascular Research

Context:

  • Chloride (Cl-) channel dysfunction is linked to various diseases.
  • Volume-regulated anion channels (VRAC) are implicated in cardiac pathophysiology.

Purpose:

  • To provide an overview of VRAC physiological characteristics.
  • To explore the relationship between VRAC and myocardial ischemia/reperfusion injury.

Summary:

  • VRAC plays significant roles in myocardial ischemia/reperfusion injury, cardiac arrhythmia, and apoptosis.
  • Dysregulation of VRAC function is associated with heart disease progression.

Impact:

  • VRAC presents a potential novel therapeutic target for cardiovascular diseases.
  • Insights into VRAC physiology can advance the clinical treatment of heart conditions.

Related Concept Videos

Cellular Injury IV: Necrosis01:16

Cellular Injury IV: Necrosis

Necrosis is a form of irreversible cell death caused by severe injury such as ischemia, toxins, or trauma. Unlike programmed cell death, it is an uncontrolled, pathological process that typically provokes inflammation in surrounding tissues.Pathophysiologic ChangesNecrosis begins when cells sustain critical damage, leading to swelling of organelles, particularly mitochondria, and rapid ATP depletion. As energy levels decline, membrane ion pumps fail, leading to calcium influx and eventually,...
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
Antianginal Drugs: Calcium Channel Blockers and Ranolazine01:25

Antianginal Drugs: Calcium Channel Blockers and Ranolazine

Angina pectoris, a primary symptom of ischemic heart disease, requires careful pharmacological interventions. In this context, calcium channel blockers (CCBs) and ranolazine have emerged as crucial pharmacotherapeutic agents, providing deep insights into the complexities of angina management.
CCBs, a diverse class that includes dihydropyridines (nifedipine) and diphenylalkylamines (verapamil and diltiazem), exert their effect by blocking calcium channels in cardiac and smooth muscle cells. This...