MicroRNA Expression Aberration as Potential Peripheral Blood Biomarkers for Schizophrenia
2011

MicroRNA Expression as Blood Biomarkers for Schizophrenia

Sample size: 90 publication Evidence: high

Author Information

Author(s): Lai Chi-Yu, Yu Sung-Liang, Hsieh Ming H., Chen Chun-Houh, Chen Hsuan-Yu, Wen Chun-Chiang, Huang Yung-Hsiang, Hsiao Po-Chang, Hsiao Chuhsing Kate, Liu Chih-Min, Yang Pan-Chyr, Hwu Hai-Gwo, Chen Wei J.

Primary Institution: National Taiwan University

Hypothesis

This study aimed to identify potential miRNA signatures for schizophrenia by comparing genome-wide miRNA expression profiles in patients with schizophrenia versus healthy controls.

Conclusion

The study found that a seven-miRNA signature could serve as a feasible way to identify biomarkers for schizophrenia.

Supporting Evidence

  • A seven-miRNA signature was derived with an AUC of 93% in the learning set.
  • The expression levels of miR-34a were significantly different between cases and controls.
  • The study included a total of 90 schizophrenia patients and 60 healthy controls.

Takeaway

Scientists looked at tiny molecules in the blood to find clues about schizophrenia, and they found a special group of seven that might help doctors understand and diagnose the illness better.

Methodology

The study used a Taqman array to profile miRNA expression in mononuclear leukocytes from schizophrenia patients and healthy controls, validating findings in a separate testing set.

Potential Biases

Potential bias due to the influence of medications and educational level differences.

Limitations

The study did not account for the effects of medications on miRNA expression and had differences in educational levels between patients and controls.

Participant Demographics

90 patients with schizophrenia and 60 healthy controls, matched for age and sex.

Statistical Information

P-Value

0.005 for hsa-miR-34a in both learning and testing sets.

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0021635

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