Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1976-10-20
pubmed:abstractText
Stucture of acetylcholine receptor protein (AChR) purified from Electrophorus electricus (eel) by affinity chromatography is described. AChR is detected in extracts from human muscle, rat muscle, and rat thymus. Rats immunized with eel AChR develop humoral antibodies, a small fraction of which recognize AChR from rat muscle. Rats immunized with AChR exhibit myasthenia, but those immunized with denatured AChR do not. Immunoglobulin fraction of antisera to eel AChR can block the activity of AChR in electroplaques. Sera from patients with myasthenia gravis contain antibodies to AChR from human muscle detectabe at an average value 300-fold the background level in sera from nonmyasthenics. Relationship of thymoma and disease intensity to antibody titer is examined. The chronic phase of EAMG appears a good model of MG, since in both cases similar concentrations of 7-S immunoglobulin against determinants on muscle AChR other than the toxin binding site are found. Assay of anti-AChR antibody in sera from MG patients using AChR from rat muscle gives titers 10%-15% of those obtained using AChR from human muscle, and using AChR from eel gives negligible titers. The assay method described for assaying antibodies against AChR from human muscle is suggested as a diagnostic test for MG.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0077-8923
pubmed:author
pubmed:issnType
Print
pubmed:volume
274
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
254-74
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Experimental autoimmune myasthenia gravis and myasthenia gravis: biochemical and immunochemical aspects.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.