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Evaluation of semen detection in vaginal secretions: Comparison of four methods
Journal article   Peer reviewed

Evaluation of semen detection in vaginal secretions: Comparison of four methods

Jennifer Flatow Culhane, Paul Nyirjesy, Kelly McCollum, Giorgia Casabellata, Manuela Di Santolo and Sabina Cauci
American journal of reproductive immunology (1989), v 60(3), pp 274-281
01 Sep 2008
PMID: 18647289

Abstract

Immunology Life Sciences & Biomedicine Reproductive Biology Science & Technology
Problem To determine the best method to detect semen in human vaginal secretions. Method of study Vaginal secretions from 302 pregnant women at mean 11.8 weeks' gestation were analyzed. Semen detection was assessed with: (i) measurement of total prostate-specific antigen (PSA), (ii) acid phosphatase activity, (iii) microscopic measurement of spermatozoa on Gram stain, and (iv) self-reported sexual intercourse in the past 2 days. Sensitivity and specificity were calculated for each technique in comparison with PSA levels. Results A total of 119 (39.4%) women had a detectable PSA. Compared with measurable PSA, the sensitivity and specificity for other methods were: acid phosphatase (26.9%, 98.4%), Gram stain (36.1%, 98.4%), and self-report of intercourse in the past 48 hr (41.9%, 88.8%). Conclusion Compared with PSA levels, commonly used assays for recent semen exposure are inaccurate. This inaccuracy may affect the results of studies, which measure vaginal immune factors like cytokines or retrieve DNA from vaginal specimens.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Immunology
Reproductive Biology
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