性福网站 I 男的操女的网站 I 香蕉网伊 I 亚洲国产精品一区 I 久草视频播放 I 亚洲字幕成人中文在线观看 I 国产精品亚洲一区二区三区在线观看 I 亚洲制服另类 I 国内精品久久久久伊人aⅴ I 宅男极品番号社 I 亚洲天堂网址 I 日本少妇xxxx I 青娱乐在线视频免费观看 I 亚洲精品综合在线观看 I 日韩电影网址 I 免播放器av I 国产精品一区无码 I 亚洲电影中文字幕 I 综合激情小说 I 一级欧美 I 黄在线网站 I 996久久国产精品线观看 I 97在线中文字幕 I 久久99精品国产麻豆蜜芽 I 岛国 中文字幕 I 日本成人h动漫在线 I 99久久婷婷国产综合精品电影√ I 电影在线一区二区 I 三级黄色,未满18 I 男女做爰猛烈啪啪吃奶图片 I 水野优香av在线区二区 I 日本高清在线www3344 I 天天做天天爱夜夜夜爽毛片 I 国产精品久久久. I 亚洲国产女人aaa毛片在线动漫 I 乱码1区2区3区4区 I 天堂av男人 I 国产精品26p I 亚洲欧美国产中文

Ultrasensitive C-peptide EIA背景介紹：

Mercodia Ultrasensitive C-peptide ELISA provides a method for the quantitative determination of human C-peptide in serum, plasma or urine.

Ultrasensitive C-peptide EIA  Summary and explanation of the test

Qualitative and quantitative evaluation of pancreatic ?-cell function is not onlyof use in the pre and postdiagnostic study of the natural history of diabetesmellitus, but is also relevant in clinical practice as a guide to the correct choiceof treatment. Peripheral insulin levels cannot be used to assess ?-cell functionbecause of a large and variable uptake from the portal circulation into the liver,and because insulin assays cannot distinguish endogenous from exogenousinsulin.?Within the pancreatic ?-cell, proinsulin is cleaved into one molecule ofC-peptide and one molecule of insulin. C-peptide is subsequently released intothe circulation at concentrations equimolar to those of insulin. In contrast toinsulin, C-peptide is only minimally extracted by the liver. Peripheral C-peptideconcentrations therefore reflect the secretion of ?-cells more accurately thaninsulin.

Ultrasensitive C-peptide EIA Principle of the procedure

Mercodia Ultrasensitive C-peptide ELISA is a solid phase two-site enzymeimmunoassay. It is based on the direct sandwich technique in which twomonoclonal antibodies are directed against separate antigenic determinantson the C-peptide molecule. During incubation C-peptide in the sample reactswith anti-C-peptide antibodies bound to the microtitration well. After washing,peroxidase conjugated anti-C-peptide antibodies are added. After a secondincubation and a simple washing step, the bound conjugate is detected byreaction with 3,3’,5,5’-tetramethylbenzidine (TMB). The reaction is stopped byadding acid to give a colorimetric endpoint that is read spectrophotometrically.