Browsing by Subject "Polymerase Chain Reaction"
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Item Establishing an STR allele frequency database for the Paraguayan population(2018-05) Giuffrida, Stephanie M.; Planz, John V.; Warren, Joseph E.; Phillips, Nicole R.; Cunningham, J. ThomasThis project determined whether the loci included in the Athos PCR Directa para Identificacao Humana Amplification and AmpFlSTR[R] Identifiler[R] PCR Amplification Kits are suitable for establishment of an STR allele frequency database representative of the Paraguayan population. Allele frequencies for the 21 STR loci included in the Athos PCR Directa para Identificacao Humana Amplification Kit were calculated for 200 individuals in the Paraguayan population. Allele frequencies for the 15 STR loci included in the AmpFlSTR[R] Identifiler[R] PCR Amplification Kit were also calculated for 300 individuals in the Paraguayan population. Performance of these loci was determined by testing the population for Hardy-Weinberg Equilibrium, testing for Linkage Disequilibrium between the loci in the kits, and calculating Power of Discrimination, Power of Exclusion, and Mean Power of Exclusion. Comparability between the common loci included in the two PCR kits was also tested. Results of these tests determined that the Athos PCR Directa para Identificacao Humana Amplification and AmpFlSTR[R] Identifiler[R] PCR Amplification Kits are both suitable for use in an STR allele frequency database. Additionally, the common loci contained in the two PCR kits are comparable, and the populations can be combined to create one database.Item Examining the skin and workplace microbiome following the return to the University of North Texas Health Science Center after self-isolation(2021-08) Khichi, Ophelia J.; Allen, Michael S.; Zhang, Yan; Zascavage, Roxanne R.; Rosales, ArmandoThe human skin microbiome contains trillions of microbiomes that colonize the human body. It is unknown how social distancing and an increase in handwashing due to the COVID-19 pandemic affect the bacterial communities that reside on the human hands & fomites. In this research, bacterial swabs from individual's dominant hand, forearm of their dominant hand, and a fomite from the workplace environment were taken, and the resident microflora, i.e., the skin microbiome, was investigated. The DNA from the samples were extracted and amplified by PCR. Samples were then pooled for sequencing of the V4 region of the 16S ribosomal RNA gene using Illumina's MiSeq platform and subsequently analyzed for community composition. The results were compared against each other to determine how an individual and a fomite's microbiome shifted following their return to work. Furthermore, the results were used to determine if individual's microbiome became more similar to each other as they returned to work in the same building.