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Longitudinal study of semen quality of unexposed workers：sperm head morphometry
morphology morphometry sperm head statistics tolerance intervals
2009/1/5
As part of a longitudinal study of human semen characteristics of unexposed workers, sperm head measurements were made using image analysis (Image Technologies Corp., Deer Park, NY). Morphometry was...
Effect of scrotal insulation on clusterin-positive cells in ram semen and their relationship to semen quality
Clusterin abnormal spermatozoa semen analysis
2008/12/29
Scrotal contents of 2 rams were insulated for 96 hours and the fraction (as a percentage) of clusterin-positive cells (CPCs) and its relationship to semen quality was investigated. Semen collection ...
Impaired seminal antioxidant capacity in human semen with hyperviscosity or oligoasthenozoospermia
Superoxide dismutase catalase total antioxidant status
2008/12/29
Antioxidant capacity of seminal plasma was evaluated in 120 semen samples subdivided into asthenozoospermic and oligoasthenozoospermic specimens with normal consistency and into asthenozoospermic an...
Variation in semen parameters derived from computer-aided semen analysis, within donors and between donors
Concentration longitudinal study motility statistical
2008/12/29
The development of computer-aided semen analysis (CASA) has made it possible to study sperm motility characteristics objectively and longitudinally. In this 2-year study of 8 sperm donors, we used C...
Semenogelin, the main protein of semen coagulum, inhibits human sperm capacitation by interfering with the superoxide anion generated during this process
Protein tyrosine phosphorylation prostate-specific antigen
2008/12/29
Semenogelin (Sg), the major protein of the human semen coagulum, is present at high concentrations in seminal vesicle secretions. It is degraded by the prostate-specific antigen (PSA) to generate pe...
Morphologically distinct sperm subpopulations defined by Fourier shape descriptors in fresh ejaculates correlate with variation in boar semen quality following cryopreservation
sperm subpopulations Fourier shape descriptors fresh ejaculates boar semen quality
2008/12/26
This study investigated two hypotheses: 1) that consistent between-boar variation in frozen semen quality exists and is genetically determined, and 2) that morphologically distinct subpopulations...
Semen characteristics of the captive Indian leopard, Panthera pardus
Semen characteristics captive Indian leopard Panthera pardus
2008/12/26
Semen samples from 11 Indian leopards (Pantherapardus) from 3 different zoos in India were collected by electroejaculation. A computer-aided semen analyzer (CASA) was used for assessing the quality ...
Sperm calcium levels and chlortetracycline fluorescence patterns are related to the in vivo fertility of cryopreserved bovine semen
Sperm calcium levels chlortetracycline vivo fertility cryopreserved bovine semen
2008/12/25
Cryopreserved bovine semen is less fertile than fresh semen for reasons that have not been fully elucidated. Cryopreservation is known to disrupt the sperm plasma membrane and it induces premature c...
Correlation between clusterin-positive spermatozoa determined by flow cytometry in bull semen and fertility
Correlation clusterin-positive spermatozoa cytometry bull semen fertility
2008/12/25
The objectives were to 1) develop a rapid and accurate method for detection of clusterin-positive spermatozoa (CPS) in bull semen and 2) determine the utility of incidence of CPS for prediction of f...
High catalase content of rabbit semen appears to be inherited
High catalase rabbit semen inherited
2008/12/25
Reactive oxygen species, as hydrogen peroxide, can be damaging to sperm. Most species have little protective catalase in their semen, but rabbit semen contains substantial amounts of catalase. The...
Evaluation of a container for collection and shipment of semen with potential uses in population-based, clinical, and occupational settings
Evaluation container collection and shipment of semen population-based clinical occupational settings
2008/12/25
Large, population-based studies of semen quality are encumbered by the logistics and expense of obtaining semen samples from men who live in a variety of locations. A prototype semen collection and ...
Semen quality and human fertility：a prospective study with healthy couples
Semen quality human fertility prospective study healthy couples
2008/12/25
Measures of semen quality are used as surrogate measures of male fertility in clinical andrology, reproductive toxicology, epidemiology, and risk assessment. However, only limited data are av...
DNA integrity in human spermatozoa：relationships with semen quality
DNA integrity human spermatozoa relationships semen quality
2008/12/25
The literature contains conflicting evidence regarding the existence of DNA damage in spermatozoa from infertile male patients. To examine this phenomenon, we have studied ejaculated spermatozoa fro...
DNA integrity in human spermatozoa：relationships with semen quality
DNA integrity human spermatozoa relationships semen quality
2008/12/26
The literature contains conflicting evidence regarding the existence of DNA damage in spermatozoa from infertile male patients. To examine this phenomenon, we have studied ejaculated spermatozoa from ...
Development of Normal Reference Values for Seminal Reactive Oxygen Species and Their Correlation With Leukocytes and Semen Parameters in a Fertile Population
Oxidative stress male infertility Endtz test spermatozoa standardization
2008/12/24
Although reactive oxygen species (ROSs) are clearly implicated in the pathogenesis of male infertility, few studies have attempted to define the basal levels of ROSs in fertile men. Levels of ROS...