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Related Experiment Video

Updated: Feb 19, 2026

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries
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Nitric oxide bioavailability dysfunction involves in atherosclerosis.

Jing-Yi Chen1, Zi-Xin Ye1, Xiu-Fen Wang1

  • 1Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, China.

Biomedicine & Pharmacotherapy = Biomedecine & Pharmacotherapie
|November 2, 2017
PubMed
Summary
This summary is machine-generated.

Nitric oxide (NO) bioavailability is crucial for preventing atherosclerosis (AS). Reduced NO bioavailability, linked to oxidative stress and inflammation, contributes significantly to AS development and endothelial dysfunction.

Keywords:
AtherosclerosisEndothelial dysfunctionNO bioavailabilityNitric oxideNitric oxide synthase

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Area of Science:

  • Cardiovascular Biology
  • Pathophysiology
  • Biochemistry

Background:

  • Atherosclerosis (AS) involves lipid accumulation and plaque formation, leading to vascular damage.
  • Endothelial dysfunction is a key factor closely associated with AS development.
  • Nitric oxide (NO) is vital for cardiovascular homeostasis, vasodilation, and suppressing vascular lesion formation.

Purpose of the Study:

  • To review the intricate relationship between nitric oxide (NO) bioavailability and the pathogenesis of atherosclerosis (AS).
  • To highlight the role of NO bioavailability in maintaining endothelial function and preventing vascular complications.

Main Methods:

  • Literature review of recent studies on NO bioavailability and AS.
  • Analysis of factors influencing NO production and utilization in the context of AS.
  • Examination of the impact of conditions like diabetes, obesity, and smoking on NO bioavailability.

Main Results:

  • Decreased NO bioavailability is linked to oxidative stress, lipid infiltration, inflammation, and altered vascular tone.
  • Increased arginase activity, asymmetric dimethylarginine, and hyperhomocysteinemia impair NO bioavailability.
  • Conditions such as diabetes mellitus, obesity, chronic kidney disease, and smoking negatively influence NO bioavailability and levels.

Conclusions:

  • NO bioavailability is a critical determinant in the development and progression of atherosclerosis.
  • Maintaining adequate NO bioavailability is essential for endothelial health and preventing AS.
  • Dysregulation of NO bioavailability, influenced by various risk factors, underscores its importance in cardiovascular disease.