搜索结果: 1-13 共查到“性科学 reactive oxygen”相关记录13条 . 查询时间(0.093 秒)
Analysis of the relationship between defective sperm function and the generation of reactive oxygen species in cases of oligozoospermia
defective sperm function reactive oxygen species oligozoospermia
2009/2/23
The ability of human spermatozoa to exhibit sperm-oocyte fusion in response to the ionophore, A23187, was examined in relation to the capacity of these cells to generate reactive oxygen species. I...
Significance of reactive oxygen species and antioxidants in defining the efficacy of sperm preparation techniques
reactive oxygen species antioxidants sperm preparation techniques
2009/2/23
The mechanisms responsible for mediating the influence of sperm preparation protocols on human sperm function have been investigated. Techniques that involved the separation of motile spermatozoa ...
Involvement of reactive oxygen species in human sperm arcosome reaction induced by A23187, lysophosphatidylcholine, and biological fluid ultrafiltrates
Hydrogen peroxide catalase superoxide dismutase chemiluminescence
2009/2/18
Although recent evidence indicated that the production of reactive oxygen species (ROS) by human spermatozoa may be involved in the regulation of capacitation, very little is known about the role ...
The impact of reactive oxygen species on bovine sperm fertilizing ability and oocyte maturation
Spermatozoa fertilization development xanthine oxidase
2009/2/17
The objective of this study was to examine the effects of reactive oxygen species (ROS) on bovine sperm function and on the developmental competence of in vitro-matured bovine oocytes. In a first se...
The relation between reactive oxygen species and cytokines in andrological patients with or without male accessory gland infection
IL-ia lL-6 IL-8 HGF spermatozoa male infertility
2009/2/17
The presence of various cytokines, namely hepatocyte growth factor (HGF), interleukin-1 receptor antagonist (IL-1 RA), and interleukins (IL-1 alpha, IL-6, and IL-8), as well as the production of rea...
Reactive oxygen species and human spermatozoa. I. Effects on the motility of intact spermatozoa and on sperm axonemes
Hydrogen peroxide hydroxyl radical demembranatedspermatozoa sperm axonemes superoxide anion sperm motility
2009/2/11
Mammalian spermatozoa are sensitive to oxygen-induced damages mediated by lipid peroxidation of the cell membrane. The aim of this study was to evaluate whether reactive oxygen species (ROS) could a...
Quality control of reactive oxygen species measurement by luminol-dependent chemiluminescence assay
Semen spermatozoa luminol oxidative stress male
2008/12/29
A total of 28 donor semen samples were used to evaluate the characteristics of laboratory variability in measuring reactive oxygen species (ROS). The objectives of this study were to assess the intera...
The effect of reactive oxygen species on equine sperm motility, viability, acrosomal integrity, mitochondrial membrane potential, and membrane lipid peroxidation
reactive oxygen species equine sperm motility viability
2008/12/25
The objective of this study was to examine the influence of reactive oxygen species (ROS), generated through the use of the xanthine (X)-xanthine oxidase (XO) system, on equine sperm motility, via...
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...
Spermatozoa Have Decreased Antioxidant Enzymatic Capacity and Increased Reactive Oxygen Species Production During Aging in the Brown Norway Rat
Oxidative stress epididymis glutathione peroxidase superoxide dismutase reproduction sperm
2008/12/24
As the proportion of aged males attempting to reproduce continues to rise, so does the concern regarding the quality of spermatozoa from aged men. An imbalance between the generation of reacti...
Utility of the Nitroblue Tetrazolium Reduction Test for Assessment of Reactive Oxygen Species Production by Seminal Leukocytes and Spermatozoa
Male infertility oxidative stress
2008/12/19
The purpose of this study was to evaluate the ability of spermatozoa and leukocytes in semen to produce reactive oxygen species (ROS) by using nitroblue tetrazolium (NBT) staining and to examine t...
Reactive Oxygen Species and Cryopreservation Promote DNA Fragmentation in Equine Spermatozoa
DNA damage oxidative stress antioxidants horse sperm
2008/12/19
The objective of this study was to examine the effect of reactive oxygen species (ROS) and cryopreservation on DNA fragmentation of equine spermatozoa. In experiment 1, equine spermatozoa were incub...
Peptide and Nonpeptide Reactive Oxygen Scavengers Provide Partial Rescue of the Testis After Torsion
Apoptosis ischemia-reperfusion oxygen radicals
2008/12/3
Ischemia-reperfusion (IR) of the testis results in germ cell-specific apoptosis, followed by a reduction in testis weight and daily sperm production (DSP). This has been associated with an increas...