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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
|
pubmed:dateCreated |
1989-5-16
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pubmed:abstractText |
A 64-yr-old man with benign monoclonal gammopathy developed recurrent episodes of severe hypoglycemia but lacked evidence of insulinoma or exogenous insulin administration. The patient's plasma was found to contain anti-insulin antibodies and large amounts of extractable insulin (1110 microU/ml), which was identified as human insulin by high-performance liquid chromatography (HPLC). The anti-insulin antibodies consisted solely of IgG and lambda-light chains. Scatchard analysis of these antibodies revealed an almost straight-line relationship, with markedly low affinity and high capacity. An immune complex made of 125I-labeled insulin and the patient's antibodies emerged in a molecular-sieve HPLC as almost a single peak, suggesting a homogeneous antibody population. In addition, the patient's M protein was separately shown to be the IgG and lambda-light-chain type. We suggest that the insulin autoantibodies responsible for the spontaneous hypoglycemia in this patient are monoclonal and of M protein origin.
|
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0149-5992
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
12
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
147-50
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:2702896-Antibodies, Monoclonal,
pubmed-meshheading:2702896-Antigen-Antibody Complex,
pubmed-meshheading:2702896-Autoantibodies,
pubmed-meshheading:2702896-Autoimmune Diseases,
pubmed-meshheading:2702896-Chromatography, High Pressure Liquid,
pubmed-meshheading:2702896-Humans,
pubmed-meshheading:2702896-Hypergammaglobulinemia,
pubmed-meshheading:2702896-Immunoelectrophoresis,
pubmed-meshheading:2702896-Insulin Antibodies,
pubmed-meshheading:2702896-Male,
pubmed-meshheading:2702896-Middle Aged,
pubmed-meshheading:2702896-Monoclonal Gammopathy of Undetermined Significance
|
pubmed:year |
1989
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pubmed:articleTitle |
Insulin autoimmune syndrome associated with benign monoclonal gammopathy. Evidence for monoclonal insulin autoantibodies.
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pubmed:affiliation |
Diabetes Center, Tokyo Women's Medical College, Japan.
|
pubmed:publicationType |
Journal Article,
Case Reports
|