OBJECTIVE To evaluate the performance of the automated semen quality analyzer system for assessing sperm quality. DESIGN Double-blind prospective study. SETTING Tertiary care hospital. PATIENT(S) Fifty healthy men donated semen samples. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Precision, accuracy and agreement between automated and manual semen analysis methods was assessed for s...

PURPOSE To analyze the differences of semen parameters in Korean young population for three periods from 2002 to 2013. MATERIALS AND METHODS A total of 516 semen samples were collected from Korean men presenting for infertility, varicoceles or other infectious problems for three periods from 2002 to 2012: January 2002-December 2003, January 2007-December 2008, and January 2012-December 2013. ...

OBJECTIVES Comparison of male condom (MC) vs. female condom (FC) with respect to self-reported mechanical and acceptability problems and semen exposure using prostate-specific antigen (PSA) as an objective biological marker and evaluation of the effect of an educational intervention on self-reported problems and semen exposure, by condom type. DESIGN Randomized crossover trial. METHODS Four...

Sexual intercourse is the major means of HIV transmission, yet the impact of semen on HIV infection of CD4(+) T cells remains unclear. To resolve this conundrum, we measured CD4(+) target cell infection with X4 tropic HIV IIIB and HC4 and R5 tropic HIV BaL and SF162 after incubation with centrifuged seminal plasma (SP) from HIV-negative donors and assessed the impact of SP on critical determina...

Purpose: To determine the clinical relevance of determining the semen pH during semen analysis as per WHO (World Health Organisation) standard criteria among the infertile couple attending a tertiary ART (Assisted Reproductive Technology) Centre in South India. Methods: Regular Semen analysis as per WHO standards (2010) Results: The Semen pH value showed no major correlation with other Semen pa...

decades (20–50 years) and concerning thousands of individuals.3 Although interesting and alarming, observed changes during a 4-year observation of 1808 men do not allow a formal conclusion, especially as confounding factors such as tobacco, alcohol consumption or body mass index were not considered. Authors suggested that environmental, psychosocial and climate factors may explain the non optim...

AIM This study was aimed at investigating semen parameters that vary most in samples of healthy donors undergoing stressful examination period. METHODS Samples were left to liquefy in an incubator at 37 degrees C, 5% CO2 for 30 minutes before volume was measured. Concentration and motility parameters were measured by means of computer assisted semen analysis (CASA) using Sperm Class Analyzer ...

Few empirical data exist on the characteristics of subjects who provide semen specimens in epidemiologic studies. The objective of this investigation was to determine participation rates and potential biases in a contemporary study of human semen quality. Subjects (n = 268) are a subset of the Child Health and Development Studies. Their mothers enrolled between 1960 and 1963 during pregnancy. A...

The aim of the present study was to assess variability in the evaluation of human sperm concentration, motility and vitality. Technicians and biologists from 10 teams involved in multicentre studies on semen quality attended the same laboratory, each team using its own methods and equipment to analyse the same semen samples. Inter-individual variability was assessed from 17 fresh semen samples ...

Acid phosphatase is an enzyme secreted by the prostate gland that is present in large amounts in seminal fluid. It, like psa (prostatic specific antigen), is not unique to the prostate and can be found in other biological fluids including vaginal secretions. It is therefore considered a presumptive chemical test for the presence of semen and semen must be confirmed by other means (sperm detecti...