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Updated: Apr 4, 2026
Cerebrospinal Fluid MicroRNA Profiling Using Quantitative Real Time PCR
Published on: January 22, 2014
MicroRNA profiling in migraine without aura: pilot study
Emmanuele Tafuri1,2, Donato Santovito3,4, Velia de Nardis3
1a Emergency Department, "G. d'Annunzio" University of Chieti , Chieti , Italy.
Background And Purpose:
MicroRNAs (miRNAs) are short, non-coding RNAs whose deregulation has been shown in several human diseases, including pain states and diseases associated with increased cardiovascular (CV) risk. This study aimed at identifying differentially expressed circulating miRNAs in patients with 'migraine without aura' (MO), a pain condition whose link with CV risk remains debated.
Methods:
Fifteen female MO patients and 13 matching healthy controls underwent a circulating microRNA expression profiling. MiR-22, miR-26a, miR-26b, miR-27b, miR-29b, let-7b, miR-181a, miR-221, miR-30b, and miR-30e were selected for validation by quantitative real-time polymerase chain reaction.
Results:
In migraineurs versus controls, four miRNAs were differentially expressed: miR-27b was significantly up-regulated (q < 0.004), while miR-181a, let-7b, and miR-22 were significantly down-regulated (q ≤ 0.01). MiR-22 and let-7b down-regulation was also confirmed in circulating blood monocytes. A logistic regression model based on microRNA expression profile showed a high accuracy for identifying migraine (AUC of ROC curve: 0.956; P < 0.001).
Conclusion:
A specific circulating miRNAs profile is associated with migraine without aura. Remarkably, the same miRNAs are known to be modulated in the setting of atherosclerosis and stroke in humans. This study represents a first step towards further characterization of MO diagnosis/pathophysiology, also in relation to its link with cardiovascular risk.
Insights
A specific profile of circulating microRNAs (miRNAs) is linked to migraine without aura. These miRNAs are also implicated in cardiovascular diseases, suggesting a potential diagnostic and pathophysiological connection.
Area of Science:
- Biochemistry
- Genetics
- Neurology
Background:
- MicroRNAs (miRNAs) are short, non-coding RNAs implicated in various diseases, including pain and conditions with increased cardiovascular (CV) risk.
- The association between migraine without aura (MO) and CV risk is not well-established.
- Identifying circulating biomarkers could aid in understanding MO pathophysiology and its CV implications.
Purpose of the Study:
- To identify differentially expressed circulating miRNAs in patients with MO.
- To explore the potential of miRNA profiles as diagnostic markers for MO.
- To investigate the link between MO and CV risk through miRNA expression.
Main Methods:
- Circulating miRNA expression profiling in 15 female MO patients and 13 healthy controls.
- Validation of selected miRNAs (miR-22, miR-26a, miR-26b, miR-27b, miR-29b, let-7b, miR-181a, miR-221, miR-30b, miR-30e) using quantitative real-time polymerase chain reaction.
- Development of a logistic regression model to assess diagnostic accuracy.
Main Results:
- Four miRNAs were differentially expressed in MO patients compared to controls: miR-27b (up-regulated), miR-181a, let-7b, and miR-22 (down-regulated).
- Down-regulation of miR-22 and let-7b was confirmed in circulating blood monocytes.
- A miRNA expression profile model demonstrated high accuracy in identifying MO (AUC: 0.956, P < 0.001).
Conclusions:
- A distinct circulating miRNA profile is associated with MO.
- The identified miRNAs are also modulated in atherosclerosis and stroke, suggesting a potential link to CV risk.
- This study provides a foundation for further research into MO diagnosis, pathophysiology, and its cardiovascular implications.
