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Analysis of Oxidative Stress in Zebrafish Embryos
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[Oxidative stress and atherosclerosis].

Júlia Stark1

  • 1II. Belgyógyászati Klinika, Semmelweis Egyetem, Általános Orvostudományi Kar Budapest, Szentkirályi u. 46., 1088.

Orvosi Hetilap
|July 8, 2015
PubMed
Summary
This summary is machine-generated.

Oxidative stress drives atherosclerosis, a major cause of death. While antioxidants like vitamin E show promise, clinical trials have not confirmed their effectiveness in preventing this cardiovascular disease.

Keywords:
LDL cholesterolLDL-koleszterinantioxidantsantioxidánsokatherosclerosisatherosclerotic plaqueatheroscleroticus plakkoxidative stressoxidatív stresszérelmeszesedés

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Area of Science:

  • Cardiovascular Science
  • Pathophysiology
  • Molecular Biology

Context:

  • Atherosclerosis is a primary cause of mortality globally.
  • Endothelial dysfunction, driven by oxidative stress, is central to its pathogenesis.
  • Disturbed blood flow in arterial regions promotes low-density lipoprotein (LDL) infiltration and oxidation.

Purpose:

  • To explore the role of oxidative stress in atherosclerosis.
  • To investigate the potential anti-atherogenic effects of antioxidant molecules.
  • To reconcile conflicting findings from clinical investigations and randomized studies.

Summary:

  • Oxidative stress, induced by genetic and environmental factors, is a key mechanism in atherosclerosis development.
  • Oxidized LDL (oxLDL) plays a critical role in multiple stages of atherogenesis, including plaque formation and destabilization.
  • Antioxidants like N-acetylcysteine, vitamins E and C, folic acid, and estrogens have been investigated for their anti-atherogenic potential.

Impact:

  • Antioxidant therapies have shown promise in preclinical studies but failed to demonstrate efficacy in large-scale randomized trials.
  • Understanding the complex interplay of oxidative stress and atherogenesis is crucial for developing effective preventative strategies.
  • Further research is needed to clarify the therapeutic window and specific mechanisms of antioxidants in cardiovascular disease prevention.