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Updated: Nov 19, 2025

Identification of Circular RNAs using RNA Sequencing
Published on: November 14, 2019
Identification of circular RNA expression profiles and potential biomarkers for intracerebral hemorrhage
Congxia Bai1, Tingting Liu2, Yingying Sun1
1State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037, PR China.
Insights
This study identifies altered circular RNA (circRNA) expression in patients with intracerebral hemorrhage (ICH). Three specific circRNAs show promise as diagnostic biomarkers for ICH, potentially aiding in early detection and treatment.
Area of Science:
- Biochemistry
- Genetics
- Neuroscience
Background:
- Intracerebral hemorrhage (ICH) is a severe neurological condition with significant mortality and morbidity.
- Circular RNAs (circRNAs) are emerging as key regulators in various biological processes and diseases.
- Understanding circRNA expression changes in ICH is crucial for identifying novel diagnostic markers.
Purpose of the Study:
- To investigate the differential expression profiles of circRNAs in patients following intracerebral hemorrhage (ICH).
- To identify potential circRNA biomarkers for the prediction and diagnosis of ICH.
- To explore the functional roles of identified circRNAs in the context of ICH.
Main Methods:
- RNA sequencing was employed to profile circRNA expression in ICH patients.
- Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was used for validation of key circRNAs.
- Bioinformatics analyses were conducted to predict the potential functions of differentially expressed circRNAs.
Main Results:
- Expression levels of 15 circRNAs were found to be consistently altered in ICH patients compared to those with hypertension.
- Three specific circRNAs (hsa_circ_0001240, hsa_circ_0001947, and hsa_circ_0001386) were identified as potential biomarkers for ICH diagnosis.
- These circRNAs are primarily implicated in pathways related to lysine degradation and immune system regulation.
Conclusions:
- This study presents the first comprehensive report on circRNA expression profiles in the context of ICH.
- The identified circRNAs, particularly hsa_circ_0001240, hsa_circ_0001947, and hsa_circ_0001386, represent promising novel biomarkers for ICH.
- Further research into the functional roles of these circRNAs may reveal new therapeutic targets for ICH.
Abstract:
Aim: To investigate the expression profiles of circRNAs after intracerebral hemorrhage (ICH). Materials & methods: RNA sequencing and qRT-PCR were used to investigate and validate circRNA expression levels. Bioinformatics analysis was performed to explore potential functions of the circRNAs. Results: Expression levels of 15 circRNAs were consistently altered in patients with ICH compared with their expression levels in hypertension. Three circRNAs, hsa_circ_0001240, hsa_circ_0001947 and hsa_circ_0001386, individually or combined, were confirmed as promising biomarkers for predicting and diagnosing ICH. The circRNAs were involved mainly in lysine degradation and the immune system. Conclusion: This is the first study to report expression profiles of circRNAs after ICH and to propose that three circRNAs are potential biomarkers for ICH.

