Biomaterial Database

An enzyme-linked immunosorbent assay (ELISA) for detecting antimitochondrial antibody. 1984

M M Kaplan, and J V Gandolfo, and E G Quaroni

We have developed an enzyme linked immunosorbent assay (ELISA) for antimitochondrial antibody. Polyvinyl microtiter plate wells are coated with partially purified rat kidney mitochondria, and excess protein binding sites are blocked with bovine serum albumin. Human serum, diluted 1:1,000, is incubated for 1 hr. Then beta-galactosidase-goat-anti-human IgG (H + L) is added followed by the substrate, p-nitrophenyl-beta-D-galactopyranoside. The plates are then read at 404 nM in a microelisa autoreader. A positive result was defined as optical density greater than or equal to 0.100, more than 5 standard deviations above the mean of 36 normal individuals. With this technique, 56 of 60 patients with primary biliary cirrhosis were positive for antimitochondrial antibody (93%), mean O.D., 0.456 +/- 0.031 S.E. Seventeen of 17 patients with extrahepatic bile duct obstruction and 14 or 14 patients with alcoholic cirrhosis were negative. Only 1 of 29 patients with chronic active liver disease was positive (4%). Antinuclear antibody and antimicrosomal antibody do not bind in this assay, and activity is absorbed from sera by preincubation with suspensions of rat kidney mitochondria. The ELISA is approximately 20 times more sensitive than a quantitative microtiter complement fixation technique and more convenient than radioimmunoassay. It is rapid, quantitative and uses stable reagents. In contrast to immunofluorescence techniques, it is not affected by observer interpretation.

UI	MeSH Term	Description	Entries
D007124	Immunoenzyme Techniques	Immunologic techniques based on the use of: (1) enzyme-antibody conjugates; (2) enzyme-antigen conjugates; (3) antienzyme antibody followed by its homologous enzyme; or (4) enzyme-antienzyme complexes. These are used histologically for visualizing or labeling tissue specimens.	Antibody Enzyme Technique, Unlabeled,Enzyme Immunoassay,Enzyme-Labeled Antibody Technique,Immunoassay, Enzyme,Immunoperoxidase Techniques,Peroxidase-Antiperoxidase Complex Technique,Peroxidase-Labeled Antibody Technique,Antibody Enzyme Technic, Unlabeled,Enzyme-Labeled Antibody Technic,Immunoenzyme Technics,Immunoperoxidase Technics,Peroxidase-Antiperoxidase Complex Technic,Peroxidase-Labeled Antibody Technic,Antibody Technic, Enzyme-Labeled,Antibody Technic, Peroxidase-Labeled,Antibody Technics, Enzyme-Labeled,Antibody Technics, Peroxidase-Labeled,Antibody Technique, Enzyme-Labeled,Antibody Technique, Peroxidase-Labeled,Antibody Techniques, Enzyme-Labeled,Antibody Techniques, Peroxidase-Labeled,Enzyme Immunoassays,Enzyme Labeled Antibody Technic,Enzyme Labeled Antibody Technique,Enzyme-Labeled Antibody Technics,Enzyme-Labeled Antibody Techniques,Immunoassays, Enzyme,Immunoenzyme Technic,Immunoenzyme Technique,Immunoperoxidase Technic,Immunoperoxidase Technique,Peroxidase Antiperoxidase Complex Technic,Peroxidase Antiperoxidase Complex Technique,Peroxidase Labeled Antibody Technic,Peroxidase Labeled Antibody Technique,Peroxidase-Antiperoxidase Complex Technics,Peroxidase-Antiperoxidase Complex Techniques,Peroxidase-Labeled Antibody Technics,Peroxidase-Labeled Antibody Techniques,Technic, Enzyme-Labeled Antibody,Technic, Immunoenzyme,Technic, Immunoperoxidase,Technic, Peroxidase-Antiperoxidase Complex,Technic, Peroxidase-Labeled Antibody,Technics, Enzyme-Labeled Antibody,Technics, Immunoenzyme,Technics, Immunoperoxidase,Technics, Peroxidase-Antiperoxidase Complex,Technics, Peroxidase-Labeled Antibody,Technique, Enzyme-Labeled Antibody,Technique, Immunoenzyme,Technique, Immunoperoxidase,Technique, Peroxidase-Antiperoxidase Complex,Technique, Peroxidase-Labeled Antibody,Techniques, Enzyme-Labeled Antibody,Techniques, Immunoenzyme,Techniques, Immunoperoxidase,Techniques, Peroxidase-Antiperoxidase Complex,Techniques, Peroxidase-Labeled Antibody
D008105	Liver Cirrhosis, Biliary	FIBROSIS of the hepatic parenchyma due to obstruction of BILE flow (CHOLESTASIS) in the intrahepatic or extrahepatic bile ducts (BILE DUCTS, INTRAHEPATIC; BILE DUCTS, EXTRAHEPATIC). Primary biliary cholangitis involves the destruction of small intra-hepatic bile ducts and decreased bile secretion. Secondary biliary cholangitis is produced by prolonged obstruction of large intrahepatic or extrahepatic bile ducts from a variety of causes.	Biliary Cirrhosis,Biliary Cirrhosis, Primary,Biliary Cirrhosis, Secondary,Cholangitis, Chronic Nonsuppurative Destructive,Liver Cirrhosis, Obstructive,Primary Biliary Cholangitis,Biliary Cirrhosis, Primary, 1,Primary Biliary Cirrhosis,Secondary Biliary Cholangitis,Secondary Biliary Cirrhosis,Biliary Cholangitides, Primary,Biliary Cholangitis, Primary,Biliary Cholangitis, Secondary,Cholangitides, Primary Biliary,Cholangitis, Primary Biliary,Cholangitis, Secondary Biliary,Cirrhosis, Biliary,Cirrhosis, Secondary Biliary,Liver Cirrhoses, Biliary,Obstructive Liver Cirrhosis,Primary Biliary Cholangitides,Secondary Biliary Cholangitides
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D008930	Mitochondria, Liver	Mitochondria in hepatocytes. As in all mitochondria, there are an outer membrane and an inner membrane, together creating two separate mitochondrial compartments: the internal matrix space and a much narrower intermembrane space. In the liver mitochondrion, an estimated 67% of the total mitochondrial proteins is located in the matrix. (From Alberts et al., Molecular Biology of the Cell, 2d ed, p343-4)	Liver Mitochondria,Liver Mitochondrion,Mitochondrion, Liver
D002779	Cholestasis	Impairment of bile flow due to obstruction in small bile ducts (INTRAHEPATIC CHOLESTASIS) or obstruction in large bile ducts (EXTRAHEPATIC CHOLESTASIS).	Bile Duct Obstruction,Biliary Stasis,Bile Duct Obstructions,Biliary Stases,Cholestases,Duct Obstruction, Bile,Duct Obstructions, Bile,Obstruction, Bile Duct,Obstructions, Bile Duct,Stases, Biliary,Stasis, Biliary
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
D006521	Hepatitis, Chronic	INFLAMMATION of the LIVER with ongoing hepatocellular injury for 6 months or more, characterized by NECROSIS of HEPATOCYTES and inflammatory cell (LEUKOCYTES) infiltration. Chronic hepatitis can be caused by viruses, medications, autoimmune diseases, and other unknown factors.	Chronic Hepatitis,Cryptogenic Chronic Hepatitis,Hepatitis, Chronic, Cryptogenic,Hepatitis, Chronic Active,Hepatitis, Chronic Persistent,Chronic Active Hepatitis,Chronic Hepatitis, Cryptogenic,Chronic Persistent Hepatitides,Chronic Persistent Hepatitis,Hepatitis, Cryptogenic Chronic
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia