香蕉久久久 I 国产777 I 中文人妻av大区中文不卡 I 久久综合伊人77777蜜臀 I 婷婷视频导航 I 天天综合永久 I 国产性生交xxxxx免费 I 中文字幕人妻无码视频 I 99精彩视频在线观看 I 久久久久久久久久成人 I 久久精品免视看国产成人2021 I 国产精品精 I 日本又色又爽又黄又高潮 I 国产精选在线播放 I 奇米色7777 I 特级a做爰全过程片 I 激情五月综合五月 I 久久久久久激情 I 在线香蕉视频 I 中文字幕有码av I 色成人 I 日本人zzzwww色视频看看 I 被窝福利片久久福利片 I 色欧美乱欧美乱妇15图片 I 97中文字幕第三 I 成人影院yy111111 I 少妇饥渴xxhd麻豆xxhd骆驼 I 91麻豆精品国产91久久久无需广告 I 国产色在线视频 I 亚洲黄色精品视频 I 免费毛片18女人毛片大全在线看 I 91精品国产日韩一区二区三区 I 亚洲美女视频网

Lp(a) ELISA脂蛋白a檢測試劑盒背景介紹：Mercodia Lp(a) ELISA provides a method for the quantitative determination of human Lp(a) in serum or plasma.

Lp(a) ELISA脂蛋白a檢測試劑盒Summary and explanation of the test Apolipoprotein(a), Apo(a), is a glycoprotein linked by disulphide bridges to apolipoprotein B in the Lp(a) particle. Apo(a) is formed by three different structural domains. One of the domains, called kringle 4, type 2, is present in multiple copies, the number of which varies and is genetically determined, giving rise to different sizes of Apo(a). Depending on the method used, six to 23 different isoforms of Apo(a) ranging from about 300 to 900 kD have been identified 1,2,15,16. Most individuals have two Apo(a) isoforms, although in some subjects no Apo(a) band can be detected when analyzed in SDS-gel electrophoresis followed by immunoblotting 3. Recently, much interest has been focused on Lp(a) since there is a lot of evidence that circulating levels represents an independent risk factor for coronary vascular disease. The Lp(a) level has been found to be an inherited risk factor for ischaemic heart disease 4-8. High Lp(a) levels have been demonstrated in familial hypercholesterolemia and its measurement may be clinically useful for risk prediction in these patients 9,10. Results have also been published on Lp(a) as a strong indicator for cerebrovascular disease 11,12. Apo(a) is homologous to the protease zymogen plasminogen 13,14. Lp(a) inhibits plasminogen activation and recent studies have shown that Apo(a) compete with plasminogen for binding to the plasminogen receptor. These properties of Apo(a) may explain the association of high Lp(a) concentrations with myocardial infarction. 

Lp(a) ELISA脂蛋白a檢測試劑盒Principle of the procedure Mercodia Lp(a) ELISA is a solid phase two-site enzyme immunoassay. It is based on the direct sandwich technique in which two monoclonal antibodies are directed against separate antigenic determinants on the Apo(a) molecule. During incubation Apo(a) in the sample react with per-oxidase-conjugated anti-Apo(a) antibodies and anti-Apo(a) antibodies bound to microtitration well. A simple washing step removes unbound enzyme labeled antibody. The bound conjugate is detected by reaction with 3,3’,5,5’-tetramethylbenzidine. The reaction is stopped by adding acid to give a colorimetric endpoint that is read spectrophotometrically。