title: Intrathyroidal persistence of human parvovirus B19 DNA in a patient with Hashimoto's thyroiditis.
abstract: Previous studies suggest a role of viral infection in the development of Hashimoto's thyroiditis (HT). Here we report a patient with HT in whom human parvovirus B19 (B19) DNA has been persistently detected in the thyroid regardless of the presence or absence of B19 DNA in peripheral blood mononuclear cells. In contrast to the DNA persistence, however, VP1 capsid protein was not detected in the thyroid by immunohistochemical studies. Thyroid specimens obtained by fine needle aspiration biopsy from two patients with HT and two with Graves' disease were negative for B19 DNA. Thus, whereas a causal link between B19 infection and HT remains to be determined, B19 DNA may persist in the thyroid and B19 infection may facilitate the intrathyroidal inflammatory process in HT patients.
authors.affiliation: Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan. kokimori@mail.tains.tohoku.ac.jp
authors.forename: Kouki
authors.initials: K
authors.lastname: Mori
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Munakata
authors.forename: Takako
authors.initials: T
authors.lastname: Saito
authors.forename: Jun-ichi
authors.initials: J
authors.lastname: Tani
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Nakagawa
authors.forename: Saeko
authors.initials: S
authors.lastname: Hoshikawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ozaki
authors.forename: Sadayoshi
authors.initials: S
authors.lastname: Ito
authors.forename: Katsumi
authors.initials: K
authors.lastname: Yoshida
mesh_terms: D000328:Adult; D004279:DNA, Viral / Q000302:isolation & purification*; D005260:Female; D050031:Hashimoto Disease / Q000821:virology*; D006801:Humans; D016732:Parvovirus B19, Human / Q000302:isolation & purification*
chemical_list: D004279:DNA, Viral