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  4. Aberrant expression of microRNAs as biomarker for schizophrenia: from acute state to partial remission, and from peripheral blood to cortical tissue
 
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Aberrant expression of microRNAs as biomarker for schizophrenia: from acute state to partial remission, and from peripheral blood to cortical tissue

Journal
Translational psychiatry
Journal Volume
6
Pages
e717
Date Issued
2016
Author(s)
Lai C.-Y.
Lee S.-Y.
Scarr E.
Yu Y.-H.
YI-TING LIN  
CHIH-MIN LIU  
TZUNG-JENG HWANG  
MING-HSIEN HSIEH  
CHEN-CHUNG LIU  
YI-LING CHIEN  
Udawela M.
Gibbons A.S.
Everall I.P.
HAI-GWO HWU  
Dean B.
WEI J. CHEN  
DOI
10.1038/tp.2015.213
URI
https://scholars.lib.ntu.edu.tw/handle/123456789/476387
Abstract
Based on our previous finding of a seven-miRNA (hsa-miR-34a, miR-449a, miR-564, miR-432, miR-548d, miR-572 and miR-652) signature as a potential biomarker for schizophrenia, this study aimed to examine if hospitalization could affect expressions of these miRNAs. We compared their expression levels between acute state and partial remission state in people with schizophrenia (n=48) using quantitative PCR method. Further, to examine whether the blood and brain show similar expression patterns, the expressions of two miRNAs (hsa-miR-34a and hsa-miR-548d) were examined in the postmortem brain tissue of people with schizophrenia (n=25) and controls (n=27). The expression level of the seven miRNAs did not alter after ~2 months of hospitalization with significant improvement in clinical symptoms, suggesting the miRNAs could be traits rather than state-dependent markers. The aberrant expression seen in the blood of hsa-miR-34a and hsa-miR-548d were not present in the brain samples, but this does not discount the possibility that the peripheral miRNAs could be clinically useful biomarkers for schizophrenia. Unexpectedly, we found an age-dependent increase in hsa-miR-34a expressions in human cortical (Brodmann area 46 (BA46)) but not subcortical region (caudate putamen). The correlation between hsa-miR-34a expression level in BA46 and age was much stronger in the controls than in the cases, and the corresponding correlation in the blood was only seen in the cases. The association between the miRNA dysregulations, the disease predisposition and aging warrants further investigation. Taken together, this study provides further insight on the candidate peripheral miRNAs as stable biomarkers for the diagnostics of schizophrenia.
SDGs

[SDGs]SDG3

Other Subjects
biological marker; microRNA; acute disease; adult; aged; blood; brain; female; human; male; metabolism; middle aged; real time polymerase chain reaction; remission; schizophrenia; young adult; Acute Disease; Adult; Aged; Biomarkers; Brain; Female; Humans; Male; MicroRNAs; Middle Aged; Real-Time Polymerase Chain Reaction; Remission Induction; Schizophrenia; Young Adult
Type
journal article

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