Related Experiment Video
Updated: Dec 13, 2025
MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as A Novel Detection and Quantification Method
Published on: October 7, 2025
Research Progress on MicroRNA in Forensic Medicine as Molecular Markers
1Institute of Forensic Science, Ministry of Public Security, Beijing 100038, China.
Abstract:
MicroRNA （miRNA） belongs to a class of endogenous non-coding small RNA molecules with a length of 18-24 nucleotides. The expression of miRNA is highly conservative, has time sequence and is highly tissue-specific. MiRNA could not be easily degraded by ribonuclease, and is resistant to changes in environmental factors such as temperature and pH value. Moreover, miRNA can even be detected in corrupt tissue. As a result, miRNA has broad application prospects in many fields of forensic medicine such as source identification of body fluid and estimation of cause of death. This article briefly summarizes the application of miRNA in forensic practice, such as body fluid identification, determination of postmortem interval and cause of death analysis.
Insights
MicroRNAs (miRNAs) are stable small RNA molecules with forensic potential. Their unique properties enable applications in body fluid identification and determining postmortem interval and cause of death.
Area of Science:
- Forensic science
- Molecular biology
- Genomics
Background:
- MicroRNAs (miRNAs) are endogenous non-coding small RNAs (18-24 nucleotides).
- miRNA expression is conserved, time-dependent, and tissue-specific.
- miRNAs are resistant to degradation by RNase and environmental factors (temperature, pH).
Purpose of the Study:
- To summarize the forensic applications of miRNA.
- To highlight miRNA's potential in forensic investigations.
Main Methods:
- Review of existing literature on miRNA applications in forensic science.
- Analysis of miRNA stability and detectability in various conditions.
Main Results:
- miRNAs are detectable even in degraded tissues.
- miRNA properties make them suitable for forensic analysis.
- Potential applications include body fluid identification, postmortem interval estimation, and cause of death analysis.
Conclusions:
- miRNAs offer a promising tool for forensic investigations.
- Further research can expand miRNA's role in forensic medicine.
More Related Videos
11:49Enhanced Genetic Analysis of Single Human Bioparticles Recovered by Simplified Micromanipulation from Forensic ‘Touch DNA’ Evidence
Published on: March 9, 2015
12:24Retrospective MicroRNA Sequencing: Complementary DNA Library Preparation Protocol Using Formalin-fixed Paraffin-embedded RNA Specimens
Published on: May 5, 2018
Related Concept Videos
01:22MicroRNAs
01:22MicroRNAs
01:29Modern Molecular Taxonomy