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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...
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Coronary Artery Disease I: Introduction01:30

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Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
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Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
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Endothelial Dysfunction in Diabetes.

Yusuke Takeda1, Keiichiro Matoba1, Kensuke Sekiguchi1

  • 1Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan.

Biomedicines
|July 3, 2020
PubMed
Summary
This summary is machine-generated.

Diabetes accelerates vascular disease by impairing endothelial function and altering macrophage polarization. Novel anti-diabetic therapies may offer protection against these cardiovascular complications.

Keywords:
endothelial dysfunctioninsulin resistancemacrophage polarity

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Area of Science:

  • Cardiovascular Disease Research
  • Endocrinology
  • Immunology

Background:

  • Diabetes mellitus is a global health concern linked to cardiovascular events.
  • Obesity exacerbates vascular disease, necessitating understanding of its mechanisms.
  • Endothelial dysfunction is a key factor in atherosclerosis development, but its link to diabetes requires further elucidation.

Purpose of the Study:

  • To review the pathological role of insulin signaling in endothelial cells.
  • To explore the contribution of macrophage polarization to diabetes-induced endothelial damage.
  • To summarize emerging therapeutic strategies targeting endothelial dysfunction and macrophage polarity in diabetes.

Main Methods:

  • Literature review of experimental and clinical studies.
  • Analysis of the relationship between insulin resistance and endothelial dysfunction.
  • Examination of macrophage polarization (M2 to M1) in endothelial damage.

Main Results:

  • Insulin resistance is tightly linked to endothelial dysfunction in diabetes.
  • Macrophage polarization towards the M1 phenotype contributes to endothelial damage.
  • Novel anti-hyperglycemic agents show potential for improving endothelial function and modulating macrophage polarization.

Conclusions:

  • Insulin signaling plays a critical role in endothelial pathobiology in diabetes.
  • Targeting macrophage polarization presents a promising therapeutic avenue for diabetic vascular complications.
  • Further research into anti-diabetic agents with endothelial protective effects is warranted.