• 我要登录|
  • 免费注册
    |
  • 我的丁香通
    • 企业机构:
    • 成为企业机构
    • 个人用户:
    • 个人中心
  • 移动端
    移动端
丁香通 logo丁香实验_LOGO
搜实验

    大家都在搜

      大家都在搜

        0 人通过求购买到了急需的产品
        免费发布求购
        发布求购
        点赞
        收藏
        wx-share
        分享

        Quantitative Analysis of F2 Isoprostanes

        互联网

        470
        The discoveries by Jack Roberts and Jason Morrow of the nonenzymatic oxidation of cell membrane phospholipids to form isoprostanes has revolutionized the field of eicosanoids (1 ). Prior to their discoveries, it was dogma that the important biologically active eicosanoids were formed by enzymes acting on arachidonic acid that had been cleaved from phospholipids by the action of phospholipases. Their research has clearly shown that important biologically active fatty acid metabolites are formed in a variety of inflammatory conditions from the action of oxygen radicals on arachidonic acid, while it is still present in complex phospholipids. These oxidized compounds may alter cell structure and signaling, and when released by the action of phospholipases, are immediately available to bind to receptors to modulate cell activity. The free radical attack on arachidonate yields an endoperoxide which can then be transformed nonenzymatically to F, D, E ring prostaglandins. Thus, each enzymatically formed eicosanoid appears to have its own class of isoprostanes, including isothromboxanes (2 ,3 ). Likewise, the isoleukotrienes have been described. In addition, compounds such as the hydroxyeicosatetraenoic acids (HETEs) can also be formed in this fashion (4 ,5 ). The biologic activity of these compounds is only now being examined.
        ad image
        提问
        扫一扫
        丁香实验小程序二维码
        实验小助手
        丁香实验公众号二维码
        扫码领资料
        反馈
        TOP
        打开小程序