Oxidative Stress Tests Could Help Diagnose Many Diseases Better
- Authors
- Jeroen Frijhoff, Paul G. Winyard, Neven Zarkovic, Sean S. Davies, Roland Stocker, David Cheng, Annie R. Knight, Emma Louise Taylor, Jeannette Oettrich, Tatjana Ruskovska, Gasparovic Ana Cipak, Antonio Cuadrado, Daniela Weber, Henrik Enghusen Poulsen, Tilman Grune, Harald HHW Tilman, Pietro Ghezzi
- Journal
- Antioxidants & Redox Signaling
- Year
- 2015
- DOI
- 10.1089/ars.2015.6317
- Study Type
- clinical
- Peer Reviewed
- Yes
- Country
- Netherlands
- Health Condition
- Cancer
- Body System
- Cardiovascular
TL;DR
Scientists found ways to measure "oxidative stress" (basically when your body gets damaged by harmful molecules) in different diseases, but there's no single perfect test that works for everything—they need to test these measurements more carefully and pick the right one for each specific disease before doctors can use them in real life.
Key Finding
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Summary
Researchers analyzed the clinical potential of oxidative stress biomarkers - laboratory tests that measure damage to DNA, proteins, and fats caused by harmful molecules called free radicals. These biomarkers appear in virtually all diseases and could serve as valuable diagnostic tools. However, the review found significant challenges including inconsistent testing methods, small study sizes, and lack of standardization across different diseases. While promising, these tests need larger validation studies and comparison with current diagnostic standards before becoming routine clinical practice. The diversity of oxidative stress patterns across diseases means doctors would need different biomarker combinations for different conditions.
Abstract
Significance: Oxidative stress is considered to be an important component of various diseases. A vast number of methods have been developed and used in virtually all diseases to measure the extent and nature of oxidative stress, ranging from oxidation of DNA to proteins, lipids, and free amino acids. Recent Advances: An increased understanding of the biology behind diseases and redox biology has led to more specific and sensitive tools to measure oxidative stress markers, which are very diverse and sometimes very low in abundance. Critical Issues: The literature is very heterogeneous. It is often difficult to draw general conclusions on the significance of oxidative stress biomarkers, as only in a limited proportion of diseases have a range of different biomarkers been used, and different biomarkers have been used to study different diseases. In addition, biomarkers are often measured using nonspecific methods, while specific methodologies are often too sophisticated or laborious for routine clinical use. Future Directions: Several markers of oxidative stress still represent a viable biomarker opportunity for clinical use. However, positive findings with currently used biomarkers still need to be validated in larger sample sizes and compared with current clinical standards to establish them as clinical diagnostics. It is important to realize that oxidative stress is a nuanced phenomenon that is difficult to characterize, and one biomarker is not necessarily better than others. The vast diversity in oxidative stress between diseases and conditions has to be taken into account when selecting the most appropriate biomarker.