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Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...

Acute Coronary Syndrome III: Diagnostic Studies

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Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...

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Ischemic Stroke l: Introduction

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Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.

Ischemic Stroke ll: Pathophysiology

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Related Experiment Video

Updated: May 12, 2026

Methods for Acute and Subacute Murine Hindlimb Ischemia

Methods for Acute and Subacute Murine Hindlimb Ischemia

Published on: June 21, 2016

Molecular Insight into Acute Limb Ischemia.

Davide Costa^1,2, Nicola Ielapi^1,2,3, Paolo Perri⁴

¹Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy.

|July 27, 2024

Summary

Acute limb ischemia (ALI) involves sudden blood flow loss to limbs. This review details molecular factors in ALI, ischemia/reperfusion syndrome, and potential new therapies for better patient outcomes.

Keywords:

ALI acute limb ischemia arterial embolism arterial thrombosis biomarkers biomolecules cytokines inflammation ischemia/reperfusion

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Last Updated: May 12, 2026

Methods for Acute and Subacute Murine Hindlimb Ischemia

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Published on: June 21, 2016

Assessing Therapeutic Angiogenesis in a Murine Model of Hindlimb Ischemia

Assessing Therapeutic Angiogenesis in a Murine Model of Hindlimb Ischemia

Published on: June 8, 2019

A Modified Surgical Model of Hind Limb Ischemia in ApoE-/- Mice using a Miniature Incision

A Modified Surgical Model of Hind Limb Ischemia in ApoE-/- Mice using a Miniature Incision

Published on: May 13, 2021

Area of Science:

Vascular Biology
Pathophysiology
Molecular Medicine

Background:

Acute limb ischemia (ALI) is a critical condition characterized by sudden arterial blood flow reduction to a limb.
Ischemia/reperfusion (I/R) syndrome is a severe complication following revascularization procedures for ALI.
Understanding the molecular and cellular basis of ALI is crucial for developing effective treatments.

Purpose of the Study:

To review the molecular and cellular factors involved in the pathogenesis of ALI.
To analyze the mechanisms underlying ischemia/reperfusion (I/R) syndrome.
To discuss novel biomarkers and targeted therapies for ALI.

Main Methods:

Literature review focusing on molecular and cellular mechanisms of ALI.
Analysis of factors contributing to arterial thrombosis and embolism.
In-depth examination of I/R syndrome pathways including inflammation, apoptosis, and necrosis.

Main Results:

Atherosclerotic plaques, smooth muscle cells (SMCs), and cytokines play roles in arterial thrombosis and extracellular matrix (ECM) alteration.
Thrombi composition is critical in arterial embolism.
Key mechanisms of I/R syndrome include inflammation, apoptosis, autophagy, necrosis, and necroptosis, leading to tissue damage.

Conclusions:

Molecular and cellular insights into ALI, I/R syndrome, and associated complications are essential.
Novel biomarkers and targeted therapies hold promise for improving ALI management.
Further research into these mechanisms can lead to advanced therapeutic strategies.