Document Detail


Low expression of glucocorticoid receptors in children with steroid-resistant nephrotic syndrome.
MedLine Citation:
PMID:  23299233     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: About 10-20 % of children with idiopathic nephrotic syndrome (NS) are steroid-resistant (SR). Low expression of glucocorticoid receptors (GRs) has been associated with poor response to steroids in a variety of autoimmune diseases. This study was done to assess the expression of cytoplasmic GRs for CD3 and CD14 in children with NS. METHODS: Expression of cytoplasmic GRs in lymphocytes (CD3(+)/GR) and monocytes (CD14(+)/GR) in the peripheral blood were assessed in 51 children with NS before the start of therapy by flow cytometry. Patients were divided into two groups: 30 children who were steroid-sensitive (SSNS) and 21 children who had initial steroid resistance (SRNS). Twenty age- and sex-matched healthy children served as controls. RESULTS: Expression of CD3(+)/GR was significantly lower in SRNS in comparison to SSNS patients and controls (p < 0.0001). Similarly, expression of CD14(+)/GR was significantly lower in SRNS in comparison to SSNS patients (p < 0.0001) and controls (p = 0.002). CD3(+)/GR and CD14(+)/GR expression were not significantly different in SSNS patients compared with controls (p = 0.06 and 0.07 respectively). CONCLUSIONS: Patients with initial SRNS showed decreased GR expression in peripheral blood mononuclear cells (PBMC) before starting therapy, and this low expression may be one of the pathophysiological mechanisms of steroid resistance in these children.
Authors:
Ayman Hammad; Sohier Yahia; Mona Samy Gouida; Ashraf Bakr; Reham M El-Farahaty
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-9
Journal Detail:
Title:  Pediatric nephrology (Berlin, Germany)     Volume:  -     ISSN:  1432-198X     ISO Abbreviation:  Pediatr. Nephrol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8708728     Medline TA:  Pediatr Nephrol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Pediatrics, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
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