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Anti-triiodothyronine autoantibodies in a euthyroid woman: confirmation of immunoglobulin G antibodies employing protein A column chromatography. 1991

A Sugenoya, and E Mizuno, and M Haniuda, and M Fujimori, and H Masuda, and Y Kasuga, and S Kobayashi, and F Iida
Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan.

The presence of thyroid hormone autoantibodies was investigated in a 48-year-old non-goitrous woman with high levels of serum total T3 and free T3. Her other thyroid function tests were normal. The presence of thyroid hormone autoantibodies were assessed in serum, acid-charcoal treated serum, IgG fractions and in a purified IgG fraction. the IgG fraction was separated from serum by a protein A-Sepharose CL-4B column chromatography and purified by gel filtration chromatography using Sephacryl S 200. Sera from normal individuals were used as controls. The results showed that the increased serum total and free T3 levels were caused by the presence of anti-T3 IgG autoantibodies. The results also indicate that protein A column chromatography is useful as a screening method for gross qualitative analyses of thyroid hormone autoantibodies.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D007457 Iodine Radioisotopes Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes. Radioisotopes, Iodine
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011863 Radioimmunoassay Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation. Radioimmunoassays
D002845 Chromatography Techniques used to separate mixtures of substances based on differences in the relative affinities of the substances for mobile and stationary phases. A mobile phase (fluid or gas) passes through a column containing a stationary phase of porous solid or liquid coated on a solid support. Usage is both analytical for small amounts and preparative for bulk amounts. Chromatographies
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001323 Autoantibodies Antibodies that react with self-antigens (AUTOANTIGENS) of the organism that produced them. Autoantibody
D013961 Thyroid Gland A highly vascularized endocrine gland consisting of two lobes joined by a thin band of tissue with one lobe on each side of the TRACHEA. It secretes THYROID HORMONES from the follicular cells and CALCITONIN from the parafollicular cells thereby regulating METABOLISM and CALCIUM level in blood, respectively. Thyroid,Gland, Thyroid,Glands, Thyroid,Thyroid Glands,Thyroids
D013970 Thyronines A group of metabolites derived from THYROXINE and TRIIODOTHYRONINE via the peripheral enzymatic removal of iodines from the thyroxine nucleus. Thyronine is the thyroxine nucleus devoid of its four iodine atoms. Thyronine

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