Enzyme-linked immunosorbent assay (ELISA) for human epidermal growth factor (hEGF). 1987

Y Abe, and T Sagawa, and K Sakai, and S Kimura
Second Department of Surgery, Ehime University, School of Medicine, Japan.

An enzyme-linked immunosorbent assay for human epidermal growth factor (hEGF) by the sandwich method with the use of orthophenylene diamine (OPDA) for the substrate of the enzyme reaction was developed. This assay showed high sensitivity, and there was no problem with the recovery rates even without any pretreatment of samples. The changes of hEGF levels in plasma and serum depend on the condition of blood storage from sampling until separation of the cell content. The levels of hEGF markedly increased with time in serum, especially when stored at room temperature but less so in plasma. Changes of hEGF levels in plasma were negligible for up to 3 h if the blood was stored at 4 degrees C until separation.

UI MeSH Term Description Entries
D002021 Buffers A chemical system that functions to control the levels of specific ions in solution. When the level of hydrogen ion in solution is controlled the system is called a pH buffer. Buffer
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D004815 Epidermal Growth Factor A 6-kDa polypeptide growth factor initially discovered in mouse submaxillary glands. Human epidermal growth factor was originally isolated from urine based on its ability to inhibit gastric secretion and called urogastrone. Epidermal growth factor exerts a wide variety of biological effects including the promotion of proliferation and differentiation of mesenchymal and EPITHELIAL CELLS. It is synthesized as a transmembrane protein which can be cleaved to release a soluble active form. EGF,Epidermal Growth Factor-Urogastrone,Urogastrone,Human Urinary Gastric Inhibitor,beta-Urogastrone,Growth Factor, Epidermal,Growth Factor-Urogastrone, Epidermal,beta Urogastrone
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D014359 Trypsin Inhibitor, Kazal Pancreatic A secreted KAZAL MOTIF-containing serine peptidase inhibitor that inhibits TRYPSIN. It is a protein composed of 56 amino acid residues and is different in amino acid composition and physiological activity from the Kunitz bovine pancreatic trypsin inhibitor (APROTININ). It protects against the trypsin-mediated premature activation of ENZYME PRECURSORS in the PANCREAS. Mutations in the SPINK1 gene are associated with CHRONIC PANCREATITIS. Acidic Pancreatic Trypsin Inhibitor,Kazal Pancreatic Trypsin Inhibitor,Pancreatic Secretory Trypsin Inhibitor, Kazal,Pancreatic Trypsin Secretory Inhibitor, Kazal,Trypsin Inhibitor, Pancreatic Secretory,Inhibitor, Tumor-Associated Trypsin,Pancreatic Secretory Trypsin Inhibitor,SPINK1,Serine Peptidase Inhibitor, Kazal-Type 1,Serine Protease Inhibitor Kazal-Type 1,Trypsin Inhibitor Kazal Pancreatic,Trypsin Inhibitor, Tumor-Associated,Tumor-Associated Trypsin Inhibitor,Serine Peptidase Inhibitor, Kazal Type 1,Serine Protease Inhibitor Kazal Type 1,Trypsin Inhibitor, Tumor Associated,Tumor Associated Trypsin Inhibitor

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