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Related Concept Videos

Arteries and Arterioles01:16

Arteries and Arterioles

Arteries, the vasculature responsible for transporting blood from the heart, possess robust walls capable of enduring the elevated pressures exerted by the heartbeat. Arteries near the heart are especially thick-walled and enriched with elastic fibers across their three tunics, classifying them as elastic or conducting arteries. These arteries, usually with a diameter exceeding 10 mm, are characterized by their ability to dilate in response to the blood pumped from the heart's ventricles and...
Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
Atherosclerosis I: Introduction01:30

Atherosclerosis I: Introduction

Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests01:27

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...

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Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies
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Microparticles and arterial disease.

Andrew Blann1, Eduard Shantsila, Alena Shantsila

  • 1Haemostasis, Thrombosis and Vascular Biology Unit, University of Birmingham Centre for Cardiovascular Sciences, City Hospital, Birmingham B18 7QH, United Kingdom. a.blann@bham.ac.uk

Seminars in Thrombosis and Hemostasis
|September 10, 2009
PubMed
Summary
This summary is machine-generated.

Microparticles (MPs), cell fragments linked to cardiovascular disease, may play a role in arterial disease pathophysiology. Further research is needed to determine their potential for improving patient care.

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Area of Science:

  • Cellular biology
  • Pathophysiology
  • Cardiovascular science

Background:

  • Microparticles (MPs) are small cell fragments (<1 micrometer) originating from endothelial cells, platelets, or leukocytes.
  • Elevated MP levels are observed in various disease states, notably cardiovascular disease.
  • MPs are implicated in cellular biology and may reflect physiological or pathophysiological states.

Purpose of the Study:

  • To review the definitions, production mechanisms, and pathophysiological links of MPs in arterial disease.
  • To evaluate the potential clinical utility of MPs in patient care.

Main Methods:

  • Literature review of existing studies on microparticles.
  • Analysis of the role of MPs in arterial disease pathophysiology.
  • Assessment of evidence for MP involvement in coagulation (e.g., tissue factor exposure).

Main Results:

  • MPs are increasingly recognized for their association with cardiovascular disease.
  • Evidence suggests MPs may contribute to arterial disease processes.
  • A potential role in coagulation due to tissue factor exposure has been proposed.

Conclusions:

  • Microparticles are significant indicators in arterial disease.
  • Understanding MP pathophysiology is crucial for potential diagnostic and therapeutic advancements.
  • Further investigation is warranted to establish the clinical value of MPs in patient management.