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Updated: Jan 28, 2026
08:23
Comet Assay as an Indirect Measure of Systemic Oxidative Stress
Published on: May 22, 2015
29.9K
Selenium, oxidative stress, and health aspects
Peter Brenneisen1, Holger Steinbrenner, Helmut Sies
1Institute for Biochemistry and Molecular Biology I, Heinrich-Heine-University, D-40225 Düsseldorf, Germany. peterbrenneisen@web.de
Molecular Aspects of Medicine
|August 18, 2005
Summary
Selenium (Se) deficiency is linked to various diseases, including cancer and neurodegenerative conditions. Supplementation with selenocompounds may offer protective benefits, particularly in combating tumor invasion.
Area of Science:
- Biochemistry and Molecular Biology
- Nutritional Science
- Oncology
Background:
- Metabolic processes generating oxidants and antioxidants are influenced by genetics and environmental factors.
- Lifestyle changes, pollution, sun exposure, and diet impact the body's challenge from reactive oxygen species (ROS).
- Antioxidants, vitamins, and selenium (Se) bolster defense mechanisms against oxidative stress.
Purpose of the Study:
- To explore the role of selenium (Se) in health and disease, particularly its deficiency-related risks.
- To investigate the potential of selenocompounds and antioxidants in preventing tumor invasion.
- To present a novel concept for protecting stromal cells from tumor cell influence using antioxidants.
Main Methods:
- Review of epidemiological findings linking Se status to disease risk.
- Elucidation of molecular mechanisms in ROS-triggered diseases and antioxidant intervention.
- Presentation of a conceptual model for antioxidant protection in tumor-stroma interactions.
Main Results:
- Se deficiency is associated with increased risk of neurodegenerative, cardiovascular diseases, and cancer.
- Evidence suggests potential benefits of selenocompounds in certain health conditions, pending further trials.
- A novel concept proposes that selenocompounds and antioxidants can protect stromal cells from tumor cell dominance.
Conclusions:
- Maintaining adequate Se status is crucial for preventing disease states linked to oxidative stress.
- Further intervention trials are needed to confirm the benefits of increased Se intake.
- Antioxidants, including selenocompounds, show promise for therapeutic strategies in chemoprevention of tumor invasion.
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