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                            Library & Multimedia
 Targeted Multiplexed Next Generation RNA Sequencing Assay for Tissue Source Determination of Forensic Samples
NCJ Number
              255176
Journal

*Forensic Science International Genetics Supplement Series* Volume: 5 Dated: December 2015 Pages: E441-E443
Author(s)
          Erin Hanson;
                        Sabrina Ingold;
                        Cordula Haas;
                        Jack Ballantyne
Date Published

December 2015
Length
              3 pages
Annotation
              The goal of this study was to improve established molecular-based methods for identifying body fluids (m/miRNA profiling) by developing a targeted multiplexed next generation sequencing assay.
Abstract
              The recovery of a DNA profile from the perpetrator or victim in criminal investigations can provide valuable 'source level' information for investigators; however, a DNA profile does not reveal the circumstances by which biological material was transferred. Some contextual 'activity level' information can be obtained by a determination of the tissue or fluid source of origin of the biological material as it indicates some behavioral activity on behalf of the individual that resulted in its transfer from the body. The current study notes that the multiplexed biomarker panel includes several highly specific gene targets for each body fluid or tissue with the necessary specificity to definitively identify all forensically relevant biological fluids and tissues (blood, semen, saliva, vaginal secretions, menstrual blood and skin). The study demonstrated the sensitivity of the assay and the ability to identify body fluids in single source and with a limited number of admixed stains. The NGS-RNA body fluid identification panel not only provides activity level information for criminal investigations, but will serve as the basis for a future assay that will also permit an association of a DNA profile to a specific body fluid or tissue through the analysis of coding region SNPs within each individual mRNA target. The use of this RNA-NGS system may provide forensic scientists with the routine capability of providing some activity-level context to a specific individual's DNA profile. (publisher abstract modified)
      
  
          Additional Details
Grant Number(s)
        2014-DN-BX-K019


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Research (Applied/Empirical)
                                Report (Study/Research)
                                Report (Grant Sponsored)
                                Program/Project Description


  
  
        
  Award
        How it got there: associating individual DNA profiles with specific body fluids in mixtures using targeted digital gene expression and RNA-SNP identification
    
  
  
Date Published: December 1, 2015
    
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      PatentsRelated Topics
        
                Body fluid analysis
        DNA (Deoxyribonucleic Acid)
        DNA extraction
        Forensic sciences
        Investigative techniques



  
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