Multiple drug-resistant gene 1 in children with steroid-sensitive nephrotic syndrome
Background: A full dose of corticosteroid is required to induce complete remission (CR) in steroid‐sensitive nephrotic syndrome (SSNS), unless it is possible to taper and discontinue along with the course after CR. But the mechanism of this change in steroid sensitivity remains unknown. P‐glycoprote...
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Published in | Pediatrics international Vol. 50; no. 2; pp. 159 - 161 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Melbourne, Australia
Blackwell Publishing Asia
01.04.2008
Blackwell Publishing Ltd |
Subjects | |
Online Access | Get full text |
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Summary: | Background: A full dose of corticosteroid is required to induce complete remission (CR) in steroid‐sensitive nephrotic syndrome (SSNS), unless it is possible to taper and discontinue along with the course after CR. But the mechanism of this change in steroid sensitivity remains unknown. P‐glycoprotein (PGP) can eliminate given corticosteroids from cytoplasm, which results in corticosteroid resistance. Therefore, drug delivery was analyzed using real‐time polymerase chain reaction (PCR) of multiple drug‐resistant gene 1 (MDR1; encoding PGP) mRNA expression.
Methods: Fourteen patients with SSNS (male/female: 14/0; age: 1–23 years; mean 10.4 years) were enrolled in the study. MDR1 mRNA gene expression of peripheral blood nucleated cells (PBNC), before and after CR (19 sets of blood samples), was quantified using real‐time PCR.
Results: The MDR1 mRNA levels before CR were variable in each patient, but there was an apparent decrease in the MDR1 gene expression of PBNC after CR (P < 0.003).
Conclusion: PGP may play a role in the tapering of corticosteroids after CR in SSNS. |
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Bibliography: | ark:/67375/WNG-7F60B050-0 ArticleID:PED2541 istex:5E5A2ECC819A8F85A952812920E6804EA39ACE97 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1328-8067 1442-200X |
DOI: | 10.1111/j.1442-200X.2008.02541.x |