Oxidative stress tests: overview on reliability and use. Part II

Area of Science:

• Biochemistry
• Cellular Biology
• Health Sciences

Background:

• Oxidative stress results from an imbalance between reactive oxygen species (ROS) production and antioxidant capacity (AC).
• Despite growing awareness, oxidative stress lacks routine screening, leading to delayed or inappropriate interventions.
• Patients often receive antioxidant supplements without assessing their actual antioxidant status or free radical levels.

Purpose of the Study:

• To highlight the critical need for routine oxidative stress screening.
• To emphasize the importance of assessing antioxidant capacity and free radical levels before supplementation.
• To discuss the availability of new testing methods for oxidative stress.

Main Methods:

• Review of current understanding of oxidative stress and antioxidant defense mechanisms.
• Analysis of current clinical practices regarding oxidative stress and antioxidant supplementation.
• Mention of emerging photometric test kits for laboratory use.

Main Results:

• Oxidative stress often presents without symptoms, hindering early detection and intervention.
• Current antioxidant supplementation practices may not be evidence-based due to a lack of diagnostic testing.
• The relationship between ROS levels and AC is complex and not always straightforward.

Conclusions:

• Routine screening for oxidative stress is crucial for effective patient management.
• Diagnostic tests are necessary to guide personalized antioxidant therapies.
• Advancements in testing technology are making oxidative stress assessment more accessible.