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Lv R, Chen Y, Xia N, Liang Y, He Q, Li M, Qi Z, Lu Y, Zhao S. Development of a double-antibody sandwich ELISA for rapid detection to C-peptide in human urine. J Pharm Biomed Anal 2018; 162:179-184. [PMID: 30261444 DOI: 10.1016/j.jpba.2018.07.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 07/18/2018] [Accepted: 07/29/2018] [Indexed: 01/18/2023]
Abstract
C-peptide level is recognized as an important indicator of diabetes diagnosis. A sensitive and specific double-antibody sandwich enzyme-linked immunosorbent assay for the detection of C-peptide based on double antibody sandwich method was studied in this paper. The rabbit and hen were innunized with PLL-C-peptide and BSA-C-peptide respectively to obtain specific Yolk antibody (IgY) and polyclonal antibody used to construct the sandwich ELISA for the measurement of C-peptide. The limit of detection was 0.51 μg/mL and the half maximal inhibitory concentration (IC50) was 3.26 μg/mL. The method developed in the study showed no evident cross-reactivity with other similar analogs. The detection standard curve of C-peptide exhibited a good linearity (R2 = 0.9896, n = 15). 17 types of the urine of diabetes patients on c-peptide levels compared with the hospital type of diabetes information, with a conclusion of a high consistent rate. Therefore, the methods could be selectively used for rapid screening of C-peptide in human urine, and the type of diabetes has some referential significance.
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Affiliation(s)
- Rui Lv
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Yingshan Chen
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Nana Xia
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Yuxin Liang
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Qiyi He
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Minyou Li
- Guangzhou Jinde Biotechnology Co., LTD, Guangzhou 510663, People's Republic of China.
| | - Zongxian Qi
- Guangzhou Jinde Biotechnology Co., LTD, Guangzhou 510663, People's Republic of China.
| | - Yeyu Lu
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
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Matsumoto K, Kanazawa A, Ikeda F, Ohmura C, Shimizu T, Tamura Y, Fujitani Y, Kawamori R, Watada H. The area of abdominal subcutaneous adipose tissue is independently correlated with C-peptide increment during glucagon load in Japanese patients with type 2 diabetes. Diabetol Int 2013. [DOI: 10.1007/s13340-013-0123-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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