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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...
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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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Related Experiment Videos

Postprandial hyperlipidemia and atherosclerosis.

Akira Tanaka1

  • 1Department of Health and Nutrition, College of Human and Environmental Studies, Kanto-gakuin University, 1-50-1 Mutsuura-higasi, Kanazawa-ku, Yokohama 236-8501, Japan. tnkakr@kanto-gakuin.ac.jp

Journal of Atherosclerosis and Thrombosis
|January 13, 2005
PubMed
Summary

Measuring remnant-like particles (RLPs) aids in understanding their role in atherosclerosis. Elevated RLPs in postprandial states indicate increased cardiovascular risk, especially in diabetic or heart disease patients.

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Area of Science:

  • Cardiovascular Science
  • Metabolic Research
  • Lipoprotein Metabolism

Background:

  • The development of the remnant-like particle (RLP) method in 1993 facilitated research into remnant lipoproteins.
  • Remnant lipoproteins are implicated in atherosclerosis and have complex metabolic pathways.

Purpose of the Study:

  • To investigate the atherogenic significance and metabolism of remnant lipoproteins.
  • To explore the role of RLPs in postprandial hyperlipidemia and cardiovascular risk assessment.

Main Methods:

  • Discovery of a novel apolipoprotein B48 receptor involved in remnant lipoprotein uptake by macrophages.
  • Clarification of the gene structure for this receptor.
  • Investigation of apolipoprotein B100 expression in the human small intestine.

Main Results:

  • Identification of a new receptor mediating remnant lipoprotein entry into arterial wall macrophages.
  • Evidence suggesting dietary VLDL synthesis and remnant formation in the human small intestine.
  • Confirmation that increased remnant lipoproteins in postprandial hyperlipidemia drive atherosclerotic risk.
  • Demonstration that RLP measurement is a sensitive indicator of atherosclerotic risk, particularly in diabetes mellitus and coronary heart disease.
  • Clarification of the link between postprandial hyperlipidemia and insulin resistance.

Conclusions:

  • RLP measurement is crucial for assessing cardiovascular risk, especially in postprandial states.
  • Understanding remnant lipoprotein metabolism and receptor interactions provides insights into atherogenesis.
  • The findings highlight the connection between diet, lipid metabolism, insulin resistance, and cardiovascular disease.