Oxidants and Anti-Oxidants in Turbot Seminal Plasma and Their Effects on Sperm Quality

来源 :Journal of Ocean University of China | 被引量 : 0次 | 上传用户:yujiesky
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In this research, the concentration and activity of oxidants and anti-oxidants in turbot semen, and their effects on sperm quality were studied. The results showed that superoxide dismutase(SOD), catalase, glutathione reductase(GR), uric acid, vitamin E(VE) and vitamin C(VC) were more abundant in seminal plasma than in spermatozoa. The variation for each of them was specific. In seminal plasma, the activity of SOD and GR increased from November 15, November 30 to December 15, and then decreased on December 30. The concentrations of both VC and uric acid decreased during the first 3 sampling times and increased on December 30. The oxidants in seminal plasma accumulated to the highest on December 30. Lactic acid(LA) and ATP levels decreased to the lowest on December 30. The correlation analysis showed that GR had the significant positive relevance to sperm motility and VSL/VCL, while ·OH had negative relevance to them. In this research, the concentration and activity of oxidants and anti-oxidants in turbot semen, and their effects on sperm quality were studied. The results showed that superoxide dismutase (SOD), catalase, glutathione reductase (GR), uric acid, vitamin E (VE) and vitamin C (VC) were more abundant in seminal plasma than in spermatozoa. The variation for each of them was specific. In seminal plasma, the activity of SOD and GR increased from November 15, November 30 to December 15, and then decreased on December 30. The concentrations of both VC and uric acid decreased during the first 3 sampling times and increased on December 30. The oxidants in seminal plasma accumulated to the highest on December 30. Lactic acid (LA) and ATP levels decreased to the lowest on December 30. The correlation analysis showed that GR had the significant positive relevance to sperm motility and VSL / VCL, while · OH had negative relevance to them.
其他文献
单元的整体设计和教学有助于学生构建相关的英语语言知识体系。当前,大多数小学英语教材都围绕某一主题按单元编排,不同板块的内容虽然在形式上各具风格,但它们一般多围绕单
95后大学生是年轻人消费的主力,其消费心理存在实用性、理性消费与娱乐性、冲动消费的矛盾、消费观念“开源”与“节流”的矛盾、消费后心理总结的矛盾,这与社会环境的变化有
一、传统高中数学作业结构的现状概述在传统高中数学作业结构中比较突出的问题是作业形式单一、作业量过多等,可以毫不夸张地说,只要提及高中数学作业,人们往往会将其与“题
摘 要:如今,微课作为一种新兴的教学模式,已经在课堂教学中获得了广泛应用。微课之所以能够在被引入我国后迅速推广,是因为其具有多样性的优势,能够突破以往教学模式的局限和弊端。将微课应用于小学英语教学中也成为了英语教学改革的必然趋势,教师理应在实践中探索出有效的应用策略。  关键词:微课;小学;英语教学  一、 引言  微课尽管是在国外被提出的一种教学模式,但其与我国提出的新型教育理念不谋而合,展现出
所谓后印象派,即是印象派之后背离了印象派风格的艺术流派,一般泛指塞尚、高更、梵高、劳特雷克和雷东等主要画家的绘画。他们开始慢慢不满意印象派所持有的表现方法,不满意仅仅
摘 要:小学阶段的英语教学,目的在于激发学生学习英语的兴趣,初步掌握英语基础知识,形成英语基本技能,初步感知中西方文化的差异。从中我们可以看出,保持学生积极的学习态度是小学英语教学的主要目的。因此,小学英语教师应该深挖教材,积极利用教材中的素材,培养学生的学习情感。笔者经过实践研究,认为小学英语教材中琅琅上口的英语儿歌不失为激发学生学习兴趣、调动学生学习积极性的“点金石”。  关键词:小学英语;学
目前,多媒体教学已成为普遍使用的一种教学手段。新课程的核心理念是“一切为了学生的发展。”而语文新课程的基本特点是工具性与人文性的统一。多媒体作为现代科学技术的工
摘 要:阅读作为英语学习中主要的一个部分,它占用了广大学生的大量时间。本文旨在通过对阅读动机因素的分析來阐明其对英语学习的影响。同时,也帮助广大的学生提高自身的阅读能力,掌握英语阅读这一项重要的技能。  关键词:英语阅读;阅读动机;影响因素  Guthrie,Wigfield将阅读动机定义为个人对阅读的目标和信念,这种目标和信念会影响个体的阅读行为,也会影响个体与阅读文本的互动和学习行为。阅读动机
《语文课程标准》指出,教学是预设与生成、封闭与开放的统一体。“生成”是新课程倡导的教学理念,关注课堂的动态生成已成为语文教师的共识。语文课堂是师生互动、心灵对话的舞
实施品牌战略是实现高职院校可持续发展的重要途径。文章从高职院校品牌建设的内涵出发,探讨了品牌建设与高职院校发展的关系,以及应从专业建设、人才培养质量、课程教学改革