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Large Scale Non-targeted Metabolomic Profiling of Serum by Ultra Performance Liquid Chromatography-Mass Spectrometry UPLC-MS

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Published on: March 14, 2013

Persistent organic pollutants and plasma microRNAs: A community-based profiling analysis.

Jingli Qu¹, Wending Li², Chengyong Jia¹

¹Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.

Environment International

|February 25, 2025

Summary

Persistent organic pollutants (POPs) exposure is linked to altered microRNAs (miRNAs) in adults. A specific miRNA, miR-6810-3p, was associated with multiple POPs and may impact nervous system regulation.

Keywords:

Gene ontology enrichment analysis MicroRNAs Neurological function Pathway enrichment Persistent organic pollutants

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Area of Science:

Environmental Health
Molecular Biology
Genomics

Background:

The relationship between persistent organic pollutants (POPs) exposure and microRNA (miRNA) dysregulation is not well understood.
Investigating this link is crucial for understanding the health impacts of environmental contaminants.

Purpose of the Study:

To identify miRNA signatures associated with low-level POPs exposure in a general population.
To explore the biological pathways affected by POPs-related miRNA changes.

Main Methods:

General linear regression was used to analyze the association between POPs and plasma miRNAs.
Pathway enrichment analysis was conducted using multiple databases.
Tissue specificity analysis was performed for identified miRNAs.

Main Results:

19 POPs were significantly associated with 23 miRNAs, primarily organophosphorus and organochlorine pesticides.
Associated miRNAs were involved in pathways like chromosome segregation, RNA splicing, autophagy, and neural network construction.
miR-6810-3p showed a strong positive association with 13 POPs, is enriched in the temporal lobe, and linked to nervous system functions.

Conclusions:

POPs exposure is associated with specific miRNA signatures in community-dwelling adults.
miR-6810-3p is highlighted as a potential biomarker for POPs exposure.
These findings suggest a role for POPs-induced miRNA alterations in nervous system regulation.