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Forensic Sci Int Genet. 2011 Jun;5(3):210-5. doi: 10.1016/j.fsigen.2010.01.002. Epub 2010 Jan 25.

Generating DNA profiles from immunochromatographic cards using LCN methodology.

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  • 1Pennsylvania State University, Eberly College of Science, Forensic Science Program, 107 Whitmore Laboratory, University Park, PA 16802, USA.

Abstract

The aim of this research was to obtain DNA profiles from immunochromatographic test devices which have already yielded positive results with body fluids obtained from fourteen volunteers. Three different immunochromatographic cards for the identification of human blood and one for the identification of human saliva were used for this research. Each body fluid was detected using the appropriate immunochromatographic card. The used cards were kept at room temperature for various lengths of time. The membranes were removed at the end of the designated times and the entire strip was extracted using low copy number (LCN) extraction procedure. The extracted DNA was amplified using reduced amplification volume and higher PCR cycle numbers. Autosomal STR profiles were detected using AmpFℓSTR(®) Identifiler™ PCR Amplification Kit from Applied Biosystems (AB). Additionally, DNA extracted from the male volunteers was amplified using the AB AmpFℓSTR(®) Yfiler™ PCR Amplification Kit. Analysis of the amplified products was carried out by capillary electrophoresis injection on the AB 3130xl Genetic Analyzer. The generated DNA data was analyzed using the SoftGenetics GeneMarker(®) HID Version 1.7 software. Autosomal and Y-STR DNA profiles were obtained from most of the cards which were stored at room temperature for up to three months. DNA profile was obtained from all four types of the immunochromatographic cards used in this study. These profiles were concordant with the profiles obtained from the donors' reference samples.

Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.

PMID:
20457072
[PubMed - indexed for MEDLINE]
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