BACKGROUND The increasing prevalence of cancer survivors who are infertile due to gonadal failure highlights the importance of fertility preservation prior to gonadotoxic treatments. Adolescent cancer patients may not be mature enough to produce sperm by masturbation, leading to the use of alternative methods for obtaining sperm for cryopreservation. The aim of the current study was to evaluate...

OBJECTIVE To evaluate and compare standard sperm parameters, lipid peroxidation of sperm plasma membranes, antioxidant capacity of seminal plasma, and sperm chromatin integrity in ejaculates from men whose partners have a history of recurrent pregnancy loss and from a control group of men with recent fertility. DESIGN Descriptive study. SETTING Reproduction Program, University of Antioquia,...

The present study evaluates the effect that various steps of a conventional cycle of cryopreservation have on the patterns of movement exhibited by boar spermatozoa. Sperm-rich ejaculate fractions collected from 24 mature fertile boars (1 ejaculate per boar) were cryopreserved following a standard freeze-thaw procedure with 0.5-mL plastic straws. Overall sperm motility and the individual kinema...

REČKOVá, Z., MACHATKOVá, M., RyBář, R., MáCHAL, L.: Monitoring of chromatin integrity changes in the population of motile bovine sperm capacitated in vitro. Acta univ. agric. et silvic. Mendel. Brun., 2007, LV, No. 2, pp. 65–70 The objective of our study was to standardize a method for chromatin integrity assessment in a separated population of bovine sperm and monitor the changes occurring dur...

BACKGROUND Anogenital distance (AGD), a sexually dimorphic measure of genital development, is a marker for endocrine disruption in animal studies and may be shorter in infant males with genital anomalies. Given the correlation between anogenital distance and genital development, we sought to determine if anogenital distance varied in fertile compared to infertile adult men. METHODS A cross se...

Objective: To determine if head and shoulder relaxation massage given immediately before collecting a semen sample will result in an increased total motile sperm count or improved semen parameters for intrauterine insemination (IUI). Design: Prospective randomized study Setting: Academic fertility center Patients: Forty men undergoing clomiphene IUI therapy with their partners Interventions: Ma...

A new instrument for assessing mammalian semen attributes, the Sperm Quality Analyzer, was evaluated as a potential tool for determining rooster sperm quality. The Sperm Quality Analyzer measures the “activity” of sperm in a semen sample as the sperm motility index (SMI). The SMI is defined as the number and amplitude of deflections in a light path per second as a result of sperm movement wit...

Background: This study aimed to investigate the inhibitory effects of simultaneous formaldehyde (FA) and noise exposure on the sperm kinematic parameters sexual hormones in male mice. Materials and Methods: Forty eight NMRI adult male mice were randomly assigned to control group and experimental groups which were exposed to formaldehyde vapour (10 ppm) (F), noise (100 dB) (N), and simultaneous ...

Peroxidation of the sperm cells’ own phospholipids, closely bound up with declining motility, has been demonstrated in human spermatozoa; the rate of peroxidation was determined quantitatively by the reaction with thiobarbituric acid. Immotile or poorly motile spermatozoa from necrospermic or oligospermic semen exhibited a higher rate of peroxidation than highly motile spermatozoa from normal e...