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Title: The Stability of Prostate-Specific Antigen in Semen Under Various Temperatures
Authors: Supawon Srettabunjong
Parimol Betset
Suvit Limawongpranee
Pattama Ekpo
Mahidol University
Keywords: Biochemistry, Genetics and Molecular Biology;Medicine
Issue Date: 1-Nov-2015
Citation: Journal of Forensic Sciences. Vol.60, No.6 (2015), 1577-1581
Abstract: © 2015 American Academy of Forensic Sciences. Prostate-specific antigen (PSA) is most commonly used for identifying semen, especially in the absence of sperm. However, PSA concentration varies according to storage temperature and duration, and little is known about its stability in semen. This study was therefore aimed to determine the stability under five different temperatures: -80, -20, 4, 25, and 37°C; and nine different durations: 1, 2, 3, 5, 7, 14, 30, 90, and 180 days. All samples were stored at -80°C after being secreted from the volunteers' body until analyzed. Results showed that the PSA concentration declined significantly over time under all temperatures studied except -80°C. At -20 and 4°C, PSA was still detectable on Day 180 with 50% and 70% decrease from its original concentration, respectively. At 25 and 37°C, PSA was detected up to Day 7 and 3, respectively. This information might assist forensic scientists understand more about PSA nature and integrate it into their works.
ISSN: 15564029
Appears in Collections:Scopus 2011-2015

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