ArticleGenes2024
A Custom qPCR Assay to Simultaneously Quantify Human and Microbial DNA.
Article in Genes, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
3 authors.
Funding
Abstract
To date, studies on microbial forensics have focused mainly on sequence analysis and generally do not include information on the quantification of and comparison between the human and bacterial DNA present in forensic samples. Knowing the amount of each type of DNA can be important for determining when and how best to employ bacterial DNA analysis, especially when there is insufficient human DNA for successful short tandem repeat (STR) typing. The goal of this work was to develop a quantitative PCR (qPCR) assay that simultaneously quantifies human and bacterial DNA that would be simple and cost-effective for laboratories to implement. Through a reproducibility study and several small-scale experiments, the reliability of a custom qPCR assay was established. A reproducibility study illustrated that the multiplex assay produced data comparable to that of previously established bacterial DNA and human DNA qPCR assays. The small-scale experiments showed that common surfaces such as keyboards (6.76 pg/μL), elevator buttons (11.9 pg/μL), cleaning supplies (7.17 pg/μL), and dispensers (16.4 pg/μL) failed to produce human DNA quantities sufficient for quality STR analysis (≥250 pg). However, all tested surfaces produced bacterial DNA quantities suitable for reaching 1 ng of amplified bacterial targets necessary for sequence analysis. In fact, bacterial DNA concentrations down to 10
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