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Related Concept Videos

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cAMP-dependent Protein Kinase Pathways

Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...
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Coronary Artery Disease I: Introduction

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Regulation of the Cardiovascular System01:27

Regulation of the Cardiovascular System

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Pathophysiology of Cardiac Performance

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Related Experiment Video

Updated: Jun 25, 2026

Assessment of Vascular Tone Responsiveness using Isolated Mesenteric Arteries with a Focus on Modulation by Perivascular Adipose Tissues
08:41

Assessment of Vascular Tone Responsiveness using Isolated Mesenteric Arteries with a Focus on Modulation by Perivascular Adipose Tissues

Published on: June 3, 2019

Cardiovascular actions of adiponectin: pathophysiologic implications.

Teresa Maia-Fernandes1, Roberto Roncon-Albuquerque, Adelino F Leite-Moreira

  • 1Serviço de Fisiologia, Faculdade de Medicina do Porto, Porto, Portugal.

Revista Portuguesa De Cardiologia : Orgao Oficial Da Sociedade Portuguesa De Cardiologia = Portuguese Journal of Cardiology : an Official Journal of the Portuguese Society of Cardiology
|February 21, 2009
PubMed
Summary

Adiponectin, a key peptide from fat cells, plays a vital role in cardiovascular health by improving insulin sensitivity and protecting against atherosclerosis. Lower levels are linked to obesity and diabetes, highlighting its therapeutic potential.

Related Experiment Videos

Last Updated: Jun 25, 2026

Assessment of Vascular Tone Responsiveness using Isolated Mesenteric Arteries with a Focus on Modulation by Perivascular Adipose Tissues
08:41

Assessment of Vascular Tone Responsiveness using Isolated Mesenteric Arteries with a Focus on Modulation by Perivascular Adipose Tissues

Published on: June 3, 2019

Area of Science:

  • Endocrinology
  • Cardiovascular Physiology
  • Metabolic Research

Background:

  • Adipose tissue is now recognized for its endocrine role in cardiovascular regulation.
  • Adiponectin is the most abundant peptide secreted by adipocytes, influencing metabolic and cardiovascular functions.

Purpose of the Study:

  • To review current knowledge on adiponectin, focusing on its cardiovascular actions.
  • To explore the metabolic effects, atheroprotective mechanisms, and therapeutic potential of adiponectin.

Main Methods:

  • Literature review of studies on adiponectin's secretion, receptors, and actions.
  • Analysis of adiponectin's impact on liver, skeletal muscle, endothelium, smooth muscle cells, and the heart.
  • Examination of factors influencing adiponectin production and its clinical significance.

Main Results:

  • Adiponectin enhances insulin sensitivity, reduces lipids, and protects against atherosclerosis by increasing nitric oxide and inhibiting adhesion factors.
  • It inhibits cardiomyocyte hypertrophy and myocardial fibrosis.
  • Reduced adiponectin levels are observed in obesity and type 2 diabetes, with prognostic significance in cardiovascular diseases.

Conclusions:

  • Adiponectin is a crucial peptide with significant metabolic and cardiovascular protective effects.
  • Lifestyle interventions and certain drugs can enhance adiponectin production.
  • Further research is needed to fully elucidate adiponectin's clinical relevance in cardiovascular disease treatment.