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Related Concept Videos

Myocarditis I: Introduction01:21

Myocarditis I: Introduction

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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...
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Cardiomyopathy I: Introduction and Classification01:25

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Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Cardiomyopathy V: Interprofessional Care01:29

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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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Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

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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:
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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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Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
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Related Experiment Video

Updated: Mar 28, 2026

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PPARs: Protectors or Opponents of Myocardial Function?

Christine J Pol1, Melissa Lieu1, Konstantinos Drosatos1

  • 1Temple University School of Medicine, Department of Pharmacology, Center for Translational Medicine, Philadelphia, PA 19140, USA.

PPAR Research
|December 30, 2015
PubMed
Summary

Peroxisome proliferator-activated receptors (PPARs) influence heart failure (HF). Research reviews how PPARs, activated by drugs for diabetes and hyperlipidemia, can impact myocardial function, offering beneficial or detrimental effects.

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Area of Science:

  • Cardiovascular Medicine
  • Metabolic Diseases
  • Molecular Biology

Background:

  • Heart failure (HF) affects over 5 million people in the US, with contributing factors including ischemic heart disease, cardiomyopathies, and hypertension.
  • Peroxisome proliferator-activated receptors (PPARs) are nuclear receptors with three isoforms (PPARα, PPARγ, PPARδ) activated by ligands.
  • PPAR activators are used to treat metabolic conditions like diabetes and hyperlipidemia, which are linked to HF.

Purpose of the Study:

  • To review current research on the effects of PPAR biology on myocardial function.
  • To summarize both beneficial and detrimental impacts of PPAR activation in the context of heart failure.

Main Methods:

  • Literature review of basic and clinical research findings.
  • Analysis of studies investigating PPAR isoforms and their role in cardiac function.
  • Examination of pharmacologic agents targeting PPARs and their cardiovascular side effects.

Main Results:

  • PPARs play a complex role in myocardial function, with potential benefits and drawbacks.
  • Drugs targeting PPARs for metabolic disorders can have adverse effects on cardiac health.
  • Specific PPAR isoforms may have distinct effects on the heart.

Conclusions:

  • PPAR biology is a critical area for understanding and potentially treating heart failure.
  • Further research is needed to elucidate the precise mechanisms and therapeutic potential of PPARs in cardiovascular disease.
  • Balancing the metabolic benefits of PPAR activators with their cardiac effects is crucial for patient care.