Combined Treatment with Tauroursodeoxycholic Acid and SCD Probiotics Reduces Oxidative Stress in Lung Tissue of Aged Rats

Aging is associated with an increased level of oxidative stress, resulting from an elevated production of reactive oxygen species, which can lead to cellular and tissue damage, particularly in the lungs. This study examined the effects of Tauroursodeoxycholic acid (TUDCA) and SCD Probiotics, both individually and in combination, on oxidative stress markers in the lung tissue of aged Sprague-Dawley rats. The primary objective was to assess the potential of these agents in reducing malondialdehyde (MDA), advanced oxidation protein products (AOPP), and myeloperoxidase (MPO) levels, which are indicative of oxidative damage and inflammation. The results showed that TUDCA significantly decreased MDA and AOPP levels, suggesting its role in maintaining mitochondrial stability and inhibiting apoptotic pathways. SCD Probiotics also demonstrated a reduction in AOPP levels, highlighting their immunomodulatory and antioxidant effects. Furthermore, the combined treatment of TUDCA and SCD Probiotics led to a more pronounced decrease in both MDA and AOPP levels, along with a significant reduction in MPO activity. This suggests a synergistic interaction that enhances the antioxidative and anti-inflammatory properties of the individual treatments. These findings support the therapeutic potential of TUDCA and SCD Probiotics in mitigating oxidative damage in aging lung tissues, proposing that their concurrent use could be an effective strategy against age-related oxidative stress. Further research is warranted to explore these effects across different models and long-term applications.