[Prognostic analysis of children with Henoch-Schonlein purpura treated by Helicobacter pylori eradication therapy].

Objective: To investigate the effect of Helicobacter pylori (Hp) eradication therapy on prognosis in children with Henoch-Schonlein purpura (HSP).

Methods: A total of 153 children with HSP were divided into Hp infection treatment group (n=22), Hp infection control group (n=21), and Hp infection-negative group (n=110). The Hp infection treatment group received one-week triple therapy for Hp eradication in addition to conventional treatment, while the Hp infection control group and Hp infection-negative group received conventional treatment.

[Role of regulatory T cells in pathogenesis of Henoch-Schonlein purpura in children].

Objective: Henoch-Schonlein purpura (HSP) is one of the most common small vessel forms of autoimmune vasculitis in children. Immunologic derangement including humoral and cellular immunity disequilibrium and proinflammatory factors dysfunction are involved in the acute stage of HSP. Recently data revealed that regulatory T cells (Tr) play a pivotal role in preventing development of autoimmune and allergic diseases.

[Correlation between mannose-binding lectin gene codon 54 polymorphism and susceptibility of Kawasaki disease].

Objective: Human mannose-binding lectin (MBL) is a C-type serum lectin synthesized by the liver as an acute-phase protein. MBL can bind to glycoproteins terminated with mannose and N-acetylglucosamine present in the cell walls on a variety of microorganisms. Therefore, MBL appears to play an important role in the immune system.

[The correlation between Kawasaki disease and polymorphisms of Tumor necrosis factor alpha and interleukin-10 gene promoter].

Objective: Kawasaki disease (KD) is an acute febrile vasculitic syndrome of unknown etiology that preferentially affects coronary artery. It has been suggested that proinflammatory cytokines like tumor necrosis factor alpha (TNF-alpha) and interleukin-10 (IL-10) are key players during acute KD. Recently, the polymorphisms relative to major transcriptional start site of TNF-alpha and IL-10 gene were shown to influence the level of TNF-alpha and IL-10 production in vitro.