ArticleBMC veterinary research2025
Malondialdehyde (MDA) and 8-hydroxy-2'-deoxyguanosine (8-OHdG) levels in canine serum: establishing reference intervals and influencing factors.
Article in BMC veterinary research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Serum Redox Biomarkers in Canine Mast Cell Tumors: Exploratory Associations with Proliferative Activity and Clinicopathological Features.Antioxidants (Basel, Switzerland) · 2026Article
- Comparative Evaluation of Oxidative Stress, Cortisol, Inflammatory Response, and Systemic COAntioxidants (Basel, Switzerland) · 2026Article
- Assessment of Oxidative Stress and DNA Damage in Dogs with Visceral Leishmaniasis Using Urinary 8-Hydroxy-2'-Deoxyguanosine.Veterinary sciences · 2026Article
- Exploring specific biomarkers in blood forFrontiers in microbiology · 2026Article
- Article
- Time-Dependent Changes in Malondialdehyde and Free-Hemoglobin in Leukoreduced and Non-Leukoreduced Canine Packed Red Blood Cells Units During Storage.Veterinary sciences · 2025Article
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Authors and funding
9 authors.
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Abstract
backgroundMounting evidence suggests that malondialdehyde (MDA) and 8-hydroxy-2'-deoxyguanosine (8-OHdG) are valuable biomarkers of lipid and nucleic acid oxidation in numerous canine diseases. However, their application in clinical settings is limited due to the absence of reference intervals (RI) and the analytical inconsistencies. Therefore, this study aimed to characterize serum MDA and 8-OHdG concentrations in dogs, to establish assay-specific RI, and to identify biological, haematological and biochemical factors influencing these markers.
methodsA total of 190 clinically healthy dogs were recruited, including pet dogs, working dogs and shelter dogs. Serum MDA concentration was measured by the Thiobarbituric Acid Reactive Substances (TBARS) assay, while 8-OHdG levels were determined by using a competitive ELISA. RI were established by non-parametric methods. Potential associations between oxidative stress (OS) biomarkers and multiple biological, haematological and biochemical factors were assessed using multivariate regression models.
resultsRI for serum MDA (1.85-14.51 µM) and 8-OHdG (0.06-0.75 ng/mL) were established in the reference population (144 and 143 dogs, respectively). The multivariate regression model for MDA revealed a positive association with total cholesterol concentration, and a negative association with monocyte count. 8-OHdG level was positively associated with urea concentration. Notably, both models also revealed a significant association between MDA and 8-OHdG. Biological factors, including the age and size of the animals, did not exert a significant influence on the results.
conclusionsThis is the first study to establish serum RI for MDA and 8-OHdG in a large and diverse canine population. Additionally, the multivariate regression models identified relevant haematological and biochemical, but not biological factors that should be considered when interpreting the results. These findings could significantly enhance the application of MDA and 8-OHdG as biomarkers in clinical settings, and promote further exploration of their value in canine diseases.
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