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

Area of Science:

• Biochemistry
• Clinical Chemistry
• Biomedical Science

Background:

• Oxidative stress monitoring in humans involves assessing damage products or antioxidant capacity.
• Current methods lack consensus on parameter selection for specific diseases.
• Variability in analytical methods, cost, and quality hinders standardization.

Purpose of the Study:

• To highlight the challenges in selecting and standardizing oxidative stress and antioxidant parameters.
• To discuss the limitations of current methodologies in clinical practice.
• To acknowledge the shift towards more sophisticated analytical techniques.

Main Methods:

• Review of existing literature on oxidative stress and antioxidant assays.
• Discussion of analytical challenges including practicability, cost, and quality control.
• Identification of emerging sophisticated methods like High Performance Liquid Chromatography (HPLC) and immunochemical assays.

Main Results:

• Lack of consensus on reliable biomarkers for oxidative stress and antioxidant status.
• Absence of generally accepted reference ranges and control materials.
• Increasing adoption of advanced analytical techniques such as HPLC.

Conclusions:

• Standardization of oxidative stress and antioxidant measurements remains a significant challenge.
• The field is moving towards more precise and reproducible methods for clinical assessment.
• Advanced techniques offer improved accuracy and reliability in monitoring oxidative stress.