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Related Concept Videos

Inflammatory Response01:28

Inflammatory Response

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An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
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Inflammatory Response II: Inflammatory Exudate and Tissue Repair01:24

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The immune system's inflammatory response destroys the invading pathogen, permitting the tissue to heal. The changes during the cellular and vascular stages allow exudate formation at the site of inflammation. The inflammatory exudate released from the wound has high protein content and a specific gravity above 1.020.
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
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Inflammatory Response I: Vascular and Cellular01:30

Inflammatory Response I: Vascular and Cellular

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The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
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Vascular Spasm01:16

Vascular Spasm

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The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last...
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Clot Retraction and Fibrinolysis01:16

Clot Retraction and Fibrinolysis

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After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
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Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists01:23

Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists

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Prostacyclin receptor agonists are a class of therapeutic agents integral to managing pulmonary arterial hypertension (PAH). These drugs operate by mimicking the action of prostaglandin I2, or PGI2, a naturally occurring compound in the body.
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Updated: Mar 16, 2026

Herbal Munziq Ameliorates Myocardial Ischemia-Reperfusion Injury by Inhibiting Inflammation
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Herbal Munziq Ameliorates Myocardial Ischemia-Reperfusion Injury by Inhibiting Inflammation

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Resolvin D2 Enhances Postischemic Revascularization While Resolving Inflammation.

Michael J Zhang1, Brian E Sansbury2, Jason Hellmann2

  • 1Institute of Molecular Cardiology, Diabetes and Obesity Center, Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, KY.

Circulation
|August 11, 2016
PubMed
Summary
This summary is machine-generated.

Resolvin D2 (RvD2) promotes blood vessel growth and improves circulation after limb ischemia. This lipid mediator resolves inflammation while stimulating new blood vessel formation, offering a novel therapeutic approach.

Keywords:
imaging techniquesinflammationperipheral vascular diseasesrevascularization

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Area of Science:

  • Lipid mediators
  • Inflammation resolution
  • Vascular biology

Background:

  • Resolvins are lipid mediators involved in inflammation resolution and tissue repair.
  • Their role in revascularization following ischemia remains unexplored.

Purpose of the Study:

  • To investigate the role of resolvins in tissue revascularization after hind limb ischemia (HLI).
  • To explore resolvins as potential therapeutic agents for promoting arteriogenesis and resolving inflammation.

Main Methods:

  • Murine model of hind limb ischemia (HLI).
  • Laser Doppler perfusion imaging, microcomputed tomography, and mass spectrometry.
  • Analysis of monocyte recruitment, endothelial cell migration, and histopathology.

Main Results:

  • Resolvin D2 (RvD2) was identified in ischemic muscle and in human peripheral artery disease patients.
  • Exogenous RvD2 enhanced perfusion recovery, promoted arteriogenesis, and reduced inflammation markers in HLI mice.
  • RvD2 improved revascularization in diabetic mice and enhanced endothelial cell migration via GPR18.

Conclusions:

  • RvD2 stimulates arteriogenic revascularization and resolves inflammation during HLI.
  • Resolvins represent a novel class of mediators with potential for treating ischemic diseases.