Hypercholesterolemia represents a high risk factor for frequent diseases and it has also been associated with poor semen quality that may lead to male infertility. The aim of this study was to analyze semen and sperm function in diet-induced hypercholesterolemic rabbits. Twelve adult White New Zealand male rabbits were fed ad libitum a control diet or a diet supplemented with 0.05% cholesterol....

OBJECTIVE To assess the effects of a selective serotonin reuptake inhibitor on semen parameters. DESIGN Prospective study. SETTING Academic medical center. PATIENT(S) Thirty-five healthy male volunteers, 18-65 years old. INTERVENTION(S) Paroxetine administration for 5 weeks. MAIN OUTCOME MEASURE(S) Serum hormone levels, semen analyses, percent sperm DNA fragmentation, and questionnair...

PURPOSE Semen parameters and sperm DNA were evaluated in patients receiving selective serotonin reuptake inhibitors. MATERIALS AND METHODS Semen samples were obtained from 74 fertile, depressed men treated with selective serotonin reuptake inhibitors (group 1) and 44 healthy fertile volunteers who served as a control (group 2). Two semen analyses and physical examinations were completed in al...

STUDY QUESTION Are antiretroviral therapies associated with semen alterations in HIV-infected men? SUMMARY ANSWER Antiretroviral regimens that included the non-nucleosidic reverse transcriptase inhibitor efavirenz were associated with a significant impairment of sperm motility, whereas regimens without efavirenz were not associated with significant semen changes. WHAT IS KNOWN ALREADY Semen...

This study set out to establish a new method, using flow cytometry, to evaluate leukocytes in semen. Ejaculates of 59 males, asymptomatic for genitourinary infections, were examined. Routine semen analyses were carried out as well as peroxidase and polymorphonuclear granulocyte-elastase detection. Leukocytes were detected combining flow cytometry and monoclonal antibodies (anti-CD45, anti-CD53)...

Objective: To find out relationship of zinc concentrations in blood and seminal plasma with various semen parameters between fertile and infertile men. Design: Prospective study. Setting: This study was carried out in the Infertility Clinic of Jinnah Postgraduate Medical Center (JPMC), Karachi and Department of Biochemistry, Basic Medical Sciences Institute, JPMC, Karachi. Subjects & Methods: F...

The evaluation of infertility in males consists of physical examination and semen analyses. Standardized semen analyses depend on the descriptive analysis of sperm motility, morphology, and concentration, with a threshold level that must be surpassed to be considered a fertile spermatozoon. Nonetheless, these conventional parameters are not satisfactory for clinicians since 25% of infertility c...

It was the aim of the present study to test whey as protective protein for the sperm cell in the long-term boar semen preservation medium TRIXcell. Analyses of sperm cell motility using computer-assisted semen analysis (CASA) indicated that the whey protein Porex has a similar protective effect as bovine serum albumin (BSA) in maintaining viability of stored boar sperm. Boar sperm diluted in TR...

BACKGROUND Ubiquitin, a house-keeping protein that marks other proteins for proteasomal degradation, tags defective sperm during epididymal passage. To establish ubiquitin as a biomarker of human infertility, the present study examines the relationships between sperm ubiquitin content and clinical semen parameters among men from an infertility clinic population with varied aetiologies. METHOD...

The objective of the present study was to estimate heritabilities and genetic correlations for semen and litter size traits using full animal model analyses. Litter size data were available from 28,485 Czech Large White and 10,410 Czech Landrace sows farrowing between 1995 and 2008. The number of litter records was 91,922 and 30,937, respectively. Records on semen traits (37,137 ejaculates from...