International journal of dermatology · 2004
Plasma reactive oxygen species activity and antioxidant potential levels in rosacea patients: correlation with seropositivity to Helicobacter pylori.
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Baz Kiymet, Cimen M Y Burak, Kokturk Aysin, Aslan Gonul, Ikizoglu Guliz, Demirseren D Deniz, Kanik Arzu, Atik Ugur
Аннотация
BACKGROUND: 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.
AIM: To investigate plasma ROS activities and antioxidant status, and their relationship with HP infection, in rosacea patients.
METHODS: 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.
RESULTS: 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.
CONCLUSION: Our results suggest that rosacea is an oxidative stress condition, as reflected by the increased ROS activity and decreased AOP, regardless of HP infection.
AIM: To investigate plasma ROS activities and antioxidant status, and their relationship with HP infection, in rosacea patients.
METHODS: 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.
RESULTS: 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.
CONCLUSION: Our results suggest that rosacea is an oxidative stress condition, as reflected by the increased ROS activity and decreased AOP, regardless of HP infection.