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Updated: Jun 21, 2026
11:05
Analysis of Oxidative Stress in Zebrafish Embryos
Published on: July 7, 2014
[Oxidative stress in cells damage processes].
Julita Kulbacka1, Jolanta Saczko, Agnieszka Chwiłkowska
1Akademia Medyczna we Wrocławiu, Katedra i Zakład Biochemii Lekarskiej. jkulbacka@gmail.com
Summary
Oxidative stress, an imbalance in reactive oxygen species (ROS) and antioxidant defenses, contributes to numerous diseases. This imbalance leads to cellular damage and death through oxidation of vital molecules.
Area of Science:
- Biochemistry
- Cell Biology
- Pathophysiology
Context:
- Oxidative stress arises from an imbalance between reactive oxygen species (ROS) and the body's antioxidant defenses.
- This condition is implicated in the pathogenesis of a wide range of diseases.
Purpose:
- To define oxidative stress and its role in cellular damage and disease.
- To highlight the mechanisms by which ROS induce cellular injury and death.
Summary:
- Oxidative stress occurs when ROS overwhelm antioxidant systems, leading to the oxidation of lipids, proteins, and DNA.
- This oxidation results in tissue damage, cytostatic effects, membrane damage, and cell death via apoptosis or necrosis.
- Antioxidant enzymes (e.g., superoxide dismutase, catalase) and substances (e.g., glutathione, vitamins E, C, A) are crucial for maintaining cellular redox balance and eliminating ROS.
Impact:
- Understanding oxidative stress is vital for comprehending disease mechanisms.
- Identifies key molecular targets for therapeutic interventions aimed at mitigating oxidative damage.
- Provides a foundation for developing antioxidant-based strategies to prevent or treat diseases.
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