Ozone water is currently utilized for antibacterial and antiviral purposes under the pandemic of COVID-19 due to its strong oxidation effect without safety problems. Therefore, clinical applications of ozone water for cutaneous diseases such as atopic dermatitis (AD) and pyoderma are expected recently. The aim of this project is to apply the ozone water for AD and pyoderma in dogs. We here examined the antibacterial effects of ozone water using staphylococci in in vitro setting, and anti-allergic effects of ozone water in AD mouse model.
We first examined the bactericidal effect of ozone water on resident staphylococci on skin. Staphylococcus aureus, which is an exacerbating factor in human AD, and S. lentus collected from AD mouse model was treated with ozone water and the number of bacteria was determined. Our findings indicated that ozone water showed a significant bactericidal effect against both staphylococcal species . We are currently investigating the efficacy of ozone water against staphylococci isolated from AD and pyoderma dogs. In vivo experiment with AD mouse model is also underway to look for the therapeutic effects of ozone water with impact on inflammatory and itch responses.