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Updated: May 24, 2026
10:28
Probe-based Real-time PCR Approaches for Quantitative Measurement of microRNAs
Published on: April 14, 2015
Micro-array profiling exhibits remarkable intra-individual stability of human platelet micro-RNA
C Stratz1, T G Nührenberg, H Binder
1Bernd L. Fiebich, Department of Psychiatry and Psychotherapy, University of Freiburg Medical School, Hauptstr. 5, D-79014 Freiburg, Germany.
Thrombosis and Haemostasis
|February 29, 2012
Summary
Platelet microRNA (miRNA) profiles are stable over time and across individuals. This stability supports single-point analysis for studying inter-individual differences in platelet miRNA expression.
Area of Science:
- Molecular Biology
- Hematology
- Genomics
Background:
- Platelets are crucial for hemostasis and thrombosis.
- Platelets contain microRNAs (miRNAs), which regulate gene expression.
- Limited data exist on platelet miRNA variability, especially intra-individual.
Purpose of the Study:
- To assess the intra-individual variability of platelet miRNA profiles over 10 days.
- To investigate the effect of acetylsalicylic acid (ASA) on platelet miRNA expression.
- To explore the functional implications of abundant platelet miRNAs.
Main Methods:
- Platelet miRNA was isolated from leucocyte-depleted platelet-rich plasma in five volunteers over 10 days.
- miRNA array analysis was performed on 1,281 human miRNAs.
- A linear mixed effects model analyzed temporal patterns and ASA effects; target gene networks were created for abundant miRNAs.
Main Results:
- 221 miRNAs were consistently expressed across all samples and time points.
- No significant effect of time or 24-hour acetylsalicylic acid (ASA) administration on miRNA expression was detected.
- Functional annotation revealed six themes for the 20 most abundant platelet miRNAs, suggesting extra-platelet roles.
Conclusions:
- Platelet miRNA profiles demonstrate remarkable stability over a 10-day period.
- Single-point analysis is a valid approach for studying inter-individual differences in platelet miRNA.
- Platelet miRNAs may exert functions beyond the platelet itself.
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