The semen analysis is the main diagnostic tool for evaluating the male fertility potential. The standard semen analysis includes evaluation of the sperm concentration, motility, and their morphology. The most important question is whether the results from semen analysis may be accurate markers for male fertility. Therefore, we retrospectively studied sperm quality among men attending the infert...

Background: Are dietary patterns, substantiated by biomarkers, associated with semen quality? Materials and Methods: In 161 men of subfertile couples undergoing in vitro fertilization treatment in a tertiary referral clinic in Rotterdam, the Netherlands, we assessed nutrient intakes and performed principal component factor analysis to identify dietary patterns. Total homocysteine (tHcy), folate...

To evaluate and optimize the sperm separation efficiency of a novel silane-coated silica bead (Puresperm), serial studies were carried out to compare the various sperm parameters between: (i) three-layer (90%-70%-40%) Puresperm and three-layer (90%-70%-40%) conventional polyvinylpyrrolidone (PVP)-coated silica bead (Percoll) gradients; (ii) three-layer (90%-70%-40%) and two-layer (90%-45%) Pure...

and normal morphology. Curiously, some previous studies have also focused on elucidating the relationship between HPV-infection with sperm function and male infertility. Whereas, the inconsistent results they obtained made the issue controversial. For instance, in 1997, Lai et al. 5 found the incidence of asthenozoospermia among patients infected with either HPV-16 or HPV-18 was significantly h...

Studies were conducted to assess (a) the pH and motility of semen removed from the ductus (d.) deferens and receptaculum from males sexually rested 1 wk, (b) the pH, motility, and sperm concentration of semen after each successive ejaculation (ejaculated 3 or 5 times at 30-60 min intervals) and (c) the rate of semen replenishment and the fertility of the replenished semen after emptying the d. ...

introduction: varicocele is considered as a common cause of male infertility. the aim of this study was to evaluate the effects of varicocelectomy on sperm parameters, sperm membrane integrity and sperm nuclear maturity. materials and methods: in this study along with routine semen analysis, hypo-osmotic swelling test (host), and aniline blue staining for assessment of as 45 and 90 days after i...

Although geographic variation in semen quality has been reported, this is the first study in the United States to compare semen quality among study centers using standardized methods and strict quality control. We evaluated semen specimens from partners of 512 pregnant women recruited through prenatal clinics in four U.S. cities during 1999-2001; 91% of men provided two specimens. Sperm concent...

the objective of the present study was to examine the effects of chilling period on semen quality of sannan and jamunapari. semen of goat breeds were collected with artificial vagina and chilled at 5-9˚c. volume, colour and ph were determined on fresh semen. after dilution, microscopic examination was performed for the progressive motility and sperm viability. diluted semen of both breed was co...

The goal of this study was to investigate the reproductive profile male Senduro Goats as superior candidates based on data semen quality. experiment carried out ten kept at Singosari Animal Husbandry Service Unit in East Java, Indonesia. An artificial vagina used collect sperm. macroscopic and microscopic qualities fresh Goat sperm have been observed. Color, volume, smell, pH, viscosity were ex...