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1.
Chinese Journal of Contemporary Pediatrics ; (12): 29-31, 2010.
Article Dans Chinois | WPRIM | ID: wpr-305115

Résumé

<p><b>OBJECTIVE</b>To study the expression of transcriptional factors T-bet and GATA3 mRNA and the levels of IFN-gamma and IL-4 in blood in children with acute idiopathic thrombocytopenic purpura (ITP) and investigate the tendency of polarization of Th1/Th2 in children with ITP.</p><p><b>METHODS</b>Blood T-bet and GATA3 mRNA expression were examined using RT-PCR and plasma IFN-gamma and IL-4 levels were measured using EIASA in children with acute ITP in acute (n=30) and remission stages (n=28). Twenty healthy children served as the controls.</p><p><b>RESULTS</b>Blood T-bet mRNA expression and IFN-gamma levels in children with ITP in the acute stage were markedly higher than those in the remission stage and controls (p<0.01). In contrast, blood GATA3 mRNA expression and IL-4 levels in children with ITP in the acute stage were significantly lower than those in the remmission stage and controls (p<0.01).</p><p><b>CONCLUSIONS</b>The high expression of T-bet and IFN-gamma and the low expression of GATA3 and IL-4 indicate the existence of Th1 polarization in children with acute ITP. This might be related to the regulation of T-bet and GATA3.</p>


Sujets)
Enfant , Enfant d'âge préscolaire , Femelle , Humains , Mâle , Facteur de transcription GATA-3 , Génétique , Interféron gamma , Sang , Interleukine-4 , Sang , Purpura thrombopénique idiopathique , Allergie et immunologie , ARN messager , Sang , Protéines à domaine boîte-T , Génétique , Lymphocytes auxiliaires Th1 , Allergie et immunologie
2.
Journal of Applied Clinical Pediatrics ; (24)2006.
Article Dans Chinois | WPRIM | ID: wpr-640134

Résumé

Objective To investigate the plasma levels of tissue factor pathway inhibitor(TFPI)in children with Henoch-Schonlein purpura(HSP)and the changes of it after therapy with heparin.Methods Forty-six HSP children were enrolled in HSP group according to the criterion,and 23 normal healthy children as controls.The plasma levels of TFPI were measured by enzyme linked immunosorbent assay in both groups.Forty-six HSP children were divided into 2 groups randomly:heparin therapy group(n=23)and conventional therapy group(n=23).The plasma levels of TFPI were measured before therapy,on the 7th day and the 14th day after therapy,respectively.Results 1.The plasma levels of TFPI in HSP group [(59.337?21.750)?g/L] significantly decreased than those of control group [(88.761?12.214)?g/L](t=7.185 P

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