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The Effect of Partners' Characteristics on Teenage Pregnancy and Its Resolution
Teenage Pregnancy abortions teenage women
2009/9/16
Context: Although the determinants of whether a teenage woman has a nonmarital pregnancy and how such a pregnancy is resolved have been widely investigated, little is known about the effect of her par...
Evaluation of computerized analysis of sperm movement characteristics and differential sperm tail swelling patterns in predicting human sperm in vitro fertilizing capacity
sperm movement characteristics differential sperm tail predicting human sperm
2009/2/23
Multivariate discriminant analysis was used to evaluate the usefulness of computer image analysis of sperm movement characteristics and differential patterns of sperm tail swelling after hypoosmot...
Indomethacin and oxaprozin lower seminal prostaglandin levels but do not influence sperm motion characteristics and serum hormones of young healthy men in a placebo-controlled double-blind trial
seminal prostaglandin levels sperm motion characteristics serum hormones young healthy men
2009/2/23
To evaluate the influence of indomethacin and oxaprozin on reproductive function in healthy young men, 34 volunteers with normal semen parameters were recruited. In a randomized double-blind design,...
Characteristics of prolactin-modulated LH induction of LH/hCG receptors. Transient inhibition of receptor induction following prolactin exposure
LH luteinizing hormone
2009/2/23
The temporal relationship between exposure to prolactin (PRL) and luteinizing hormone (LH) induction of LH receptors was investigated in hypophysectomized adult male rats. Testicular homogenate me...
Spectrum of the pulsatile characteristics of LH release in normal men
pulsatile characteristics LH release normal men
2009/2/23
To assess the spectrum of LH pulse characteristics in normal men, blood samples from 36 individuals were drawn at 20-minute intervals for 8 hours. The subsequent immunoactive LH concentrations were ...
Potential daily sperm production, Sertoli cell number, and seminiferous tubule characteristics in beef bulls fed conventional or gossypol-enriched diets
Potential daily sperm production Sertoli cell number seminiferous tubule characteristics
2009/2/18
The objective of this study was to determine the amount of germ cell degeneration throughout spermatogenesis in the bull and to determine if gossypol-enriched diets enhance that degeneration. Twenty...
An improved mouse sperm-oocyte plasmalemma binding assay: studies on characteristics of sperm binding in medium with or without glucose
Zona-free oocytes pronuclear zygotes in vitro fertilization
2009/2/18
Sperm binding to the oocyte plasmalemma is crucial to subsequent steps in fertilization. However, the usual in vitro assay for sperm-oocyte binding does not distinguish between nonspecific attachmen...
Fertility and its relationship to motility characteristics of spermatozoa in ewes after cervical, transcervical, and intrauterine insemination with frozen-thawed ram semen
Proline glycine betaine sperm cryopreservation
2009/2/18
The fertility of ewes after artificial insemination and the relationship between fertility and motility characteristics assessed by a computerized motility analysis system were examined with ram semen...
Influence of semen collection method on ejaculate characteristics in the common marmoset, Callithrix jacchus
Spermatozoa electroejaculation vaginal washing artificial insemination
2009/2/16
A source of normal spermatozoa (sperm) is required for many andrological and reproductive studies. Ideally the method used for semen collection should be repeatable and reliable but should not influ...
Selenium supplementation enhances the element concentration in blood and seminal fluid but does not change the spermatozoal quality characteristics in subfertile men
Selenium supplementation element concentration
2009/2/13
The objective of this study was to evaluate the effect of selenium (Se) supplementation on Se concentration and glutathione peroxidase (GSH-Px) activity in blood components and seminal fluid and o...
Effect of follicular or oviductal fluids on movement characteristics of bovine sperm during capacitation in vitro
Sperm motion analysis motility hyperactivation
2009/2/12
Mammalian sperm exhibit characteristic motility changes associated with capacitation. Movement characteristics of bovine sperm incubated in noncapacitating (control, medium alone), capacitating (ovidu...
Movement characteristics of boar sperm obtained from the oviduct or hyperactivated in vitro
Pig uterine tube fallopian tube sperm motility
2009/2/10
The objectives of this study were to describe hyperactivated motility in boar sperm and to determine the incidence of hyperactivation among boar sperm flushed from the oviduct. Oviducts were surgica...
Longitudinal study of semen quality of unexposed workers Sperm motility characteristics
semen quality unexposed workers Sperm motility characteristics
2009/2/7
As part of a longitudinal study of human semen characteristics of unexposed workers, sperm motility measurements were made using computer-assisted sperm analysis. Motility analyses were conducted on...
A comparison of two computer-automated semen analysis instruments for the evaluation of sperm motion characteristics in the stallion
sperm motility curvilinear velocity sperm concentration
2009/2/6
Two commercially available computer-automate semen analysis instruments (CellSoft Automated Semen Analyzer and HTM-2000 Motion Analyzer) were compared for their ability to report similar results bas...
Relationship between morphology and motion characteristics of human spermatozoa in semen and in the swim-up sperm fractions
sperm morphology motility patterns swim-up separation
2009/2/6
In this study, the authors evaluated the morphology pattern and motion characteristics of human spermatozoa before and after swim-up separation. Samples were divided into two, morphologically diff...