Relationship between Oxidative Stress and Endometritis: Exploiting Knowledge Gained in Mares and Cows.
Authors: Boni Raffaele, Cecchini Gualandi Stefano
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary: Oxidative Stress and Endometritis in Mares and Cows Endometritis represents a significant reproductive challenge in both equine and bovine practice, yet the underlying mechanisms differ markedly between species—a distinction that may reflect variations in uterine reactivity, endocrine status, management systems, and environmental stressors. Boni and Cecchini Gualiani's 2022 review synthesised evidence from both species to examine how reactive oxygen and nitrogen species (RONS) generated during the inflammatory immune response contribute to endometrial pathology, exploring whether biomarkers derived from this oxidative damage could improve diagnostic accuracy alongside traditional microbiological and cytological examination. During active infection, immune cells infiltrate the endometrium and release cytokines, chemokines, prostaglandins, and RONS that combat pathogens but simultaneously cause oxidative damage to cellular proteins, lipids, and nucleic acids; the resulting by-products enter the systemic circulation and can be detected in blood plasma or uterine fluid. The authors propose that these oxidative stress biomarkers—increasingly employed across both species—hold diagnostic potential when incorporated into clinical assessment protocols, though methodological variations in sampling and analysis across published studies warrant standardisation. For equine and cattle practitioners, this suggests that oxidative stress markers may complement existing diagnostic tools, potentially enabling earlier or more definitive endometritis identification, though further species-specific validation and practical implementation guidelines remain necessary before routine clinical application.
Read the full abstract on PubMed
Practical Takeaways
- •Consider species-specific differences when diagnosing endometritis in mares versus cows, as inflammatory pathways and immune responses differ substantially
- •Biomarkers related to oxidative stress in blood or uterine fluid may offer improved diagnostic tools beyond traditional microbiological testing alone
- •Inflammation management in endometritis should account for the role of RONS and their harmful by-products, suggesting antioxidant support may be relevant to therapeutic strategy
Key Findings
- •Etiopathogenesis of endometritis differs significantly between mares and cows, potentially due to differences in uterine sensitivity, endocrine factors, and stress sources
- •Reactive oxygen and nitrogen species (RONS) and their bioactive by-products play a central role in endometrial inflammation and can serve as diagnostic biomarkers
- •RONS-mediated oxidation causes morphological and functional alterations to proteins, lipids, and nucleic acids, with by-products entering the bloodstream and affecting organ and tissue functionality
- •Microbiological, cytological, and biomarker assessment using blood plasma or uterine fluid samples can significantly improve diagnostic accuracy for endometritis