Plasma reactive oxygen species activity and antioxidant potential levels in rosacea patients: correlation with seropositivity to Helicobacter pylori

International Journal of Dermatology
Kiymet BazUgur Atik

Abstract

Recent studies have suggested that there might be an etiologic role for Helicobacter pylori (HP) in rosacea. HP is a Gram-negative bacterium that colonizes the gastric mucosa, increases the generation of reactive oxygen species (ROS), and decreases plasma antioxidants such as ascorbic acid. To investigate plasma ROS activities and antioxidant status, and their relationship with HP infection, in rosacea patients. Twenty-nine rosacea patients and 20 age- and sex-matched healthy controls were examined for specific immunoglobulin G (IgG) and IgM against HP, plasma malondialdehyde (MDA), and antioxidant potential (AOP) levels. Compared with controls, the seropositivity of HP for IgM was significantly higher (P = 0.03) and the seropositivity of HP for IgG was significantly lower (P = 0.0001) in patients with rosacea. Plasma MDA levels were higher (P = 0.0001) and AOP levels were lower (P = 0.019) in patients than in controls, regardless of the severity of the disease. Plasma MDA and AOP levels were not affected by the seropositivity of HP for IgM and/or IgG in either group. Our results suggest that rosacea is an oxidative stress condition, as reflected by the increased ROS activity and decreased AOP, regardless of HP infection.

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Citations

Nov 28, 2013·Journal of the American Academy of Dermatology·Jerry Tan, Mats Berg
Jun 2, 2009·Journal of Dermatological Science·Kenshi Yamasaki, Richard L Gallo
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