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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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Related Experiment Video

Updated: Feb 18, 2026

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats
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AMPK and cardiac remodelling.

Yenan Feng1, Youyi Zhang1, Han Xiao2

  • 1Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China.

Science China. Life Sciences
|November 25, 2017
PubMed
Summary
This summary is machine-generated.

AMP-activated protein kinase (AMPK) plays key roles in cardiac remodelling beyond metabolism. This review details AMPK

Keywords:
AMP-activated protein kinase (AMPK)AMPK activatorcardiac fibrosiscardiac inflammationcardiac remodellinghypertrophy

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Area of Science:

  • Cardiology
  • Molecular Biology
  • Biochemistry

Background:

  • Cardiac remodelling is central to heart failure progression.
  • Key pathological changes include myocyte hypertrophy, inflammation, and fibrosis.
  • AMP-activated protein kinase (AMPK) is a crucial energy sensor and metabolic regulator.

Purpose of the Study:

  • To review the multifaceted roles of AMPK in cardiac remodelling.
  • To summarize AMPK's effects on hypertrophy, inflammation, and fibrosis.
  • To explore the molecular mechanisms and potential pharmacological activators of AMPK in cardiac remodelling.

Main Methods:

  • Literature review of current research on AMPK and cardiac remodelling.
  • Analysis of studies investigating AMPK's impact on cardiac pathological changes.
  • Examination of molecular pathways regulated by AMPK in the heart.

Main Results:

  • AMPK influences cardiac hypertrophy, inflammation, and fibrosis through various molecular pathways.
  • AMPK's role extends beyond metabolic regulation in the context of cardiac remodelling.
  • Specific pharmacological activators show promise for therapeutic intervention.

Conclusions:

  • AMPK is a significant regulator of cardiac remodelling processes.
  • Targeting AMPK offers a potential therapeutic strategy for heart failure.
  • Further research into AMPK activators could lead to novel treatments.