MicroRNA Profile in Menopausal Women with Insomnia: A Pilot Study.

Area of Science:

• Molecular Biology
• Genomics
• Sleep Medicine

Background:

• Menopausal insomnia is a prevalent issue affecting women's quality of life.
• MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression and are implicated in various physiological processes.
• Identifying molecular markers for menopausal insomnia is crucial for developing targeted therapies.

Purpose of the Study:

• To investigate the plasma microRNA profile in menopausal women experiencing insomnia.
• To identify specific microRNAs associated with insomnia symptoms.
• To explore potential molecular pathways targeted by identified microRNAs.

Main Methods:

• A two-stage longitudinal study design involving 15 participants per stage.
• Plasma samples were collected and analyzed for microRNA expression using high-throughput sequencing.
• Differential expression analysis and pathway enrichment analysis were performed.

Main Results:

• Over 4000 microRNAs were detected.
• miR-412-5p was the only microRNA significantly differentially expressed in menopausal women with insomnia across both study stages (p < 0.05).
• Predicted target genes of miR-412-5p (FUT4, FUT1, ST3GAL6) are involved in glycosphingolipid biosynthesis.

Conclusions:

• miR-412-5p is a potential biomarker for insomnia in menopausal women.
• The identified pathway suggests a role for miR-412-5p in regulating biological processes relevant to sleep.
• miR-412-5p represents a promising therapeutic target for novel insomnia treatments.