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Turkish Journal of Medical Sciences

Abstract

Background/aim: Humans continually release skin cells and DNA fragments into the air. This DNA can either remain airborne or drop onto surfaces as indoor dust. This study investigates the collection, isolation, amplification, and sequencing of human DNA from air samples, focusing on both nuclear DNA and mitochondrial DNA.

Materials and methods: This study was conducted in a 15 m3 room and a meeting room, where air samples were systematically collected and filtered using a vacuum device equipped with various sterile filters. The rigorous protocols were implemented to prevent contamination throughout the process. Thirteen air samples were processed in this research, involving the participation of two females and two males.

Results: The study demonstrated the feasibility of extracting and sequencing human mtDNA from air samples, while nuclear DNA quantification remained challenging. Notably, cotton filters yielded better mtDNA sequencing results compared to glass fiber filters. Despite limited nuclear DNA recovery, mtDNA sequencing was successful in several samples, providing interpretable DNA profiles.

Conclusion: This preliminary study highlights the potential use of airDNA in forensic investigations, emphasizing mtDNA sequencing as a viable approach when nuclear DNA is scarce. Future studies should prioritize mtDNA sequencing and consider using glass fiber or cotton filters for optimal airDNA collection.

Author ORCID Identifier

SITKI TIPLAMAZ: 0000-0001-9015-940X

ZEHRA ÖMEROĞLU ULU: 0000-0002-8884-4683

BESTAMİ ÇOLAK: 0000-0003-4044-491X

HIZIR ASLIYÜKSEK: 0000-0001-6845-3717

FİKRETTİN ŞAHİN: 0000-0003-1503-5567

DOI

10.55730/1300-0144.6029

Keywords

eDNA, likelihood ratio, mtDNA, next generation sequencing

First Page

802

Last Page

809

Publisher

The Scientific and Technological Research Council of Türkiye (TÜBİTAK)

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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