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A high prevalence of parvovirus B19 DNA in patients with psoriasis #MMPMID16862431
Yazici AC; Aslan G; Baz K; Ikizoglu G; Api H; Serin MS; Tezcan S; Emekdas G; Tasdelen B
Arch Dermatol Res 2006[Oct]; 298 (5): 231-5 PMID16862431show ga
Psoriasis is a common inflammatory skin disease. Infectious models are considered to be of pathophysiological importance in psoriasis. The immunological profile of stable psoriasis plaques suggests that viral antigens may be important. Human parvovirus B19 (PVB19) is a single-stranded DNA virus that causes various clinical symptoms. Several case reports have suggested associations between PVB19 infection and various chronic autoimmune and dermatologic diseases. There has so far been no information regarding the role of PVB19 in psoriasis, except psoriatic arthritis. In this report, to investigate the role of PVB19 in psoriasis, we analyzed PVB19 DNA of peripheral blood from psoriatic patients (n = 47) in comparison with blood donors (n = 20). We also determined the presence of anti-PVB19 IgG and IgM antibodies by using enzyme-linked immunosorbent assay (ELISA). We found that the presence of PVB19 DNA in patients with psoriasis (38%) was significantly higher than in controls (0%, P < 0.01). Anti-PVB19 IgG antibodies were detected in 79% of the cases while only 6% had anti-PVB19 IgM antibodies. PVB19 DNA presence was associated with seropositivity for anti-PVB19 IgG (P < 0.05) but not with IgM antibodies, indicating subclinical activation of latent infection. No correlation was found between the presence of PVB19 DNA and a patient's age, sex, type of psoriasis, or psoriasis area and severity index. The data demonstrated a statistically significant association between psoriasis and PVB19. Therefore, we suggest that PVB19 infection may be of pathophysiological importance in psoriasis.
Arch+Dermatol+Res 2006 ; 298 (5): 231-5
