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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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β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation,...
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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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Pharmacologic intervention is crucial in treating cardiac arrest patients during ACLS or Advanced Cardiovascular Life Support. The ACLS algorithms guide the administration of specific drugs based on the patient's cardiac arrest rhythm, which includes pulseless ventricular tachycardia (VT), ventricular fibrillation (VF), asystole, and pulseless electrical activity (PEA).EpinephrineIndication: Epinephrine is the first-line drug for all cardiac arrest rhythms.Mechanism of Action: Epinephrine...
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Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
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The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
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Related Experiment Video

Updated: Jul 27, 2025

Protection of H9c2 Myocardial Cells from Oxidative Stress by Crocetin via PINK1/Parkin Pathway-Mediated Mitophagy
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Cardioprotective Effects of

Boniface Nyamweya1, Dilani Rukshala1, Narmada Fernando1

  • 1Institute of Biochemistry, Molecular Biology and Biotechnology, University of Colombo, Colombo 03, Sri Lanka.

Journal of Evidence-Based Integrative Medicine
|June 6, 2023
PubMed
Summary
This summary is machine-generated.

Vitex negundo shows potential for cardiovascular protection, with studies suggesting benefits from its bioactive components. Further research is needed to confirm its efficacy and safety for treating heart conditions.

Keywords:
Vitex negundocardiovascular diseasecomplementary and alternative medicineherbal medicinehypertension

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Area of Science:

  • Pharmacology
  • Ethnobotany
  • Cardiovascular Research

Background:

  • Medicinal plants are increasingly explored for therapeutic applications and modern drug development.
  • Vitex negundo (V. negundo) is a traditional medicinal plant with a wide geographical distribution.
  • Previous research indicates V. negundo possesses therapeutic properties, particularly for cardiovascular health.

Purpose of the Study:

  • To review the current scientific understanding of Vitex negundo's potential in preventing cardiovascular diseases.
  • To examine the role of V. negundo's bioactive components in cardioprotection.

Main Methods:

  • Review of existing scientific literature on V. negundo and cardiovascular pathologies.
  • Analysis of preclinical (animal and non-animal) experimental models.

Main Results:

  • Preliminary studies suggest that V. negundo and its active constituents may offer cardioprotective effects.
  • Evidence from various experimental models supports the potential of V. negundo in cardiovascular health.

Conclusions:

  • Further preclinical and clinical investigations are essential to validate the cardioprotective claims of V. negundo.
  • Comprehensive evaluation of other V. negundo compounds, their specific mechanisms, and potential side effects is required.