| Gene Expression Analysis of Urine Sediment: Evaluation for Potential Noninvasive Markers of Interstitial Cystitis/Bladder Pain Syndrome. | |
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MedLine Citation:
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PMID: 22177197 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: We determined whether gene expression profiles in urine sediment could provide noninvasive markers for interstitial cystitis/bladder pain syndrome with and/or without Hunner lesions. MATERIALS AND METHODS: Fresh catheterized urine was collected and centrifuged from 5 controls, and 5 Hunner lesion-free and 5 Hunner lesion bearing patients. RNA was extracted from pelleted material and quantified by gene expression microarray using the GeneChip® Human Gene ST Array. Three biologically likely hypotheses were tested, including 1) all 3 groups are distinct from each other, 2) controls are distinct from the 2 types combined of patients with interstitial cystitis/bladder pain syndrome and 3) patients with Hunner lesion-interstitial cystitis/bladder pain syndrome are distinct from controls and patients with nonHunner-lesion interstitial cystitis/bladder pain syndrome combined. For statistical parity an unlikely fourth hypothesis was included, that is patients with nonHunner-lesion interstitial cystitis/bladder pain syndrome are distinct from controls and patients with Hunner lesion-interstitial cystitis/bladder pain syndrome combined. RESULTS: Analysis supported selective up-regulation of genes in the Hunner lesion interstitial cystitis/bladder pain syndrome group (hypothesis 3), which were primarily associated with inflammation. The inflammatory profile was statistically similar to that reported in a prior Hunner lesion interstitial cystitis/bladder pain syndrome bladder biopsy study. CONCLUSIONS: Gene expression analysis of urine sediment was feasible in this pilot study. Expression profiles failed to discriminate nonHunner-lesion interstitial cystitis/bladder pain syndrome from controls and they are unlikely to be a noninvasive marker for nonHunner-lesion interstitial cystitis/bladder pain syndrome. In contrast, patients with Hunner lesion had increased proinflammatory gene expression in urine sediment, similar to that in a prior microarray study of bladder biopsies. If these preliminary results are validated in future research, they may lead to a noninvasive biomarker for Hunner lesion-interstitial cystitis/bladder pain syndrome. |
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Authors:
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Eric M Blalock; Garrett S Korrect; Arnold J Stromberg; Deborah R Erickson |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-16 |
Journal Detail:
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Title: The Journal of urology Volume: - ISSN: 1527-3792 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0376374 Medline TA: J Urol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Molecular and Biomedical Pharmacology, College of Medicine, University of Kentucky, Lexington, Kentucky. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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