氧化型低密度脂蛋白(OX-LDL)

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编号:PM20605
储存条件:4℃避光保存
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货号 品牌 规格 纯度/含量 标准价 优惠价 库存货期 数量 购买
PM20605-2mg PERFEMIKER 2mg
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¥3806.00 登录后可见
详细描述 <strong>制备方法</strong> 37℃,在含Cu2SO4的PBS溶液中氧化人LDL,加入过量的EDTA终止氧化反应。 <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; color: #3c506c; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Liberation Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji'; font-size: 16px; text-align: justify;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-weight: bolder; color: #000000; font-size: x-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">产品性质</span></span></span> <div class="tableResponsive" style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; color: #3c506c; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Liberation Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji'; font-size: 16px;"> <table style="margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; border-collapse: collapse; border-top: 1px solid #000000; border-left: 1px solid #000000; max-width: 100%; width: 100%;" cellspacing="0"> <tbody style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"> <tr class="firstRow" style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border: 1px solid windowtext; min-height: 30px; height: 30px;" valign="top" width="232"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">蛋白纯度(</span>Purity<span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">)</span></span></span> </td> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border: 1px solid windowtext; min-height: 30px; height: 30px;" valign="top" width="425"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman'; font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">></span>97%<span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">(琼脂糖凝胶电泳)</span></span> </td> </tr> <tr style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border-top: none; border-right: 1px solid windowtext; border-bottom: 1px solid windowtext; border-left: 1px solid windowtext; border-image: initial; min-height: 30px; height: 30px;" valign="top" width="232"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">蛋白</span></span></span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">浓度</span></span></span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">(</span>Concentration<span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">)</span></span></span></span> </td> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border-top: none; border-right: 1px solid windowtext; border-bottom: 1px solid windowtext; border-left: 1px solid windowtext; border-image: initial; min-height: 30px; height: 30px;" valign="top" width="425"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman'; font-size: xx-small;">0.8-3.0 mg/ml</span> </td> </tr> <tr style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border-top: none; border-right: 1px solid windowtext; border-bottom: 1px solid windowtext; border-left: 1px solid windowtext; border-image: initial; min-height: 30px; height: 30px;" valign="top" width="232"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">外观</span></span></span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">(</span>Appearance<span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">)</span></span></span></span> </td> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border-top: none; border-right: 1px solid windowtext; border-bottom: 1px solid windowtext; border-left: 1px solid windowtext; border-image: initial; min-height: 30px; height: 30px;" valign="top" width="425"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">无色</span></span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">乳状液体</span></span></span> </td> </tr> <tr style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border-top: none; border-right: 1px solid windowtext; border-bottom: 1px solid windowtext; border-left: 1px solid windowtext; border-image: initial; min-height: 30px; height: 30px;" valign="top" width="232"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">缓冲液组分(</span>Buffer Components<span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">)</span></span></span> </td> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border-top: none; border-right: 1px solid windowtext; border-bottom: 1px solid windowtext; border-left: 1px solid windowtext; border-image: initial; min-height: 30px; height: 30px;" valign="top" width="425"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';">PBS</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';">,&nbsp;</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';">pH 7.4</span></span> </td> </tr> <tr style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;"> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border-top: none; border-right: 1px solid windowtext; border-bottom: 1px solid windowtext; border-left: 1px solid windowtext; border-image: initial; min-height: 30px; height: 30px;" valign="top" width="232"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman';"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">氧化程度(</span>Oxidized Level<span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">)</span></span></span> </td> <td style="box-sizing: border-box; margin: 0px; padding: 0px 7px; -webkit-tap-highlight-color: transparent; border-top: none; border-right: 1px solid windowtext; border-bottom: 1px solid windowtext; border-left: 1px solid windowtext; border-image: initial; min-height: 30px; height: 30px;" valign="top" width="425"> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman'; font-size: xx-small;">TBARS<span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">检测(根据</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;">MDA</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">的含量反映</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;">LDL</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">的氧化程度)</span></span> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman'; font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">起始</span>LDL<span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">:</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;">0.1~0.5 nmol MDA/mg</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">蛋白</span></span> <p style="box-sizing: border-box; margin: 6px 0px; padding: 0px; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; letter-spacing: 0.3px; overflow-wrap: break-word; text-align: justify;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 'Times New Roman'; font-size: xx-small;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">高</span>Ox-LDL<span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">:</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent;">90~100 nmol MDA/mg</span><span style="box-sizing: border-box; margin: 0px; padding: 0px; -webkit-tap-highlight-color: transparent; font-family: 宋体;">蛋白</span></span> </td> </tr> </tbody> </table> </div> <span style="font-size: x-small;"><strong>产品描述</strong></span> LDL是由极低密度脂蛋白(VLDL)转变而来,主要功能是把胆固醇运输到全身各处细胞,运输到肝脏合成胆酸,其可用于研究受体介导的内吞作用过程,尤其是在动脉粥样硬化等疾病中,其血浆来源的LDL可用于研究LDL在功能和代谢中的氧化作用。 氧化的LDL(Ox-LDL)是修饰LDL中的一类。修饰的LDL除包括氧化修饰的LDL外,还包括乙酰化LDL及丙二醛(MDA)、4-羟烯酸(4-HNE)直接结合的LDL,这些未经氧化修饰而仅经一般化学修饰的LDL称为衍化的LDL。 不同于衍化的LDL,Ox-LDL 的生理学独特性表现在: 1)在细胞生理功能影响上,Ox-LDL可诱发细胞毒性作用,影响花生四烯酸的代谢,抑制胆固醇酯化作用等,但衍化的LDL无上述效应; 2)Ox-LDL消耗LDL内源性抗氧化物质,使LDL上的维生素E含量下降,而MDA-LDL无上述效应; 3)氧化修饰涉及脂质过氧化反应,LDL中的PUFAs被氧化。MDA对LDL修饰,是直接和ApoB-100结合成希夫氏碱,脂质过氧化反应轻微; 4)氧化LDL在氧化程度低时,ApoB降解;在氧化程度高时,ApoB又可发生再聚合。MDA对LDL的修饰,ApoB无降解、聚合反应发生; 5)Ox-LDL 产生的荧光峰波长为430nm,而MDA -LDL的荧光峰波长为460nm。Ox-LDL不经LDL受体代谢,由清道夫受体识别、结合、内吞饮入细胞并丧失正常的胆固醇代谢途径,引起细胞内脂质沉积,泡沫样变。 LDL氧化修饰的方式有很多种,常见的有: 1)细胞介导的LDL氧化修饰,又称为生物氧化修饰的LDL。如内皮细胞,巨噬细胞,单核细胞都具有此功能; 2)过度金属离子介导的LDL氧化修饰,如Ca2+,Fe2+等;还有其他形式的氧化修饰,包括物理方法如紫外线,或过氧化物酶催化。 Canspec提供的人源高氧化低密度脂蛋白(Human High Oxidized Low Density Lipoprotein,High Ox-LDL),是由过度铜离子介导人血浆来源的LDL进行的氧化修饰。新鲜血浆经检测为HCV,HBsAg和HIV阴性。本产品为无菌包装,可以直接稀释使用。本High Ox-LDL具有的高氧化水平使其产生明显的氧化应激,能够用来诱导细胞凋亡,以及建立细胞损伤模型。我们还提供中等氧化程度的Ox-LDL ,广泛用于脂质代谢的研究。除提供Ox-LDL,我们还提供人源乙酰化LDL(Ac-LDL),以及荧光标记的LDL。
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