Bovine thyroglobulin was treated with increasing ratios of succinic anhydride, trinitrobenzene sulfonic acid, tetranitromethane, and N-acetylimidazole in an attempt to assess the role of lysine or tyrosine residues in binding to thyroid membrane receptors. Extensive succinylation results in dissociation to 12 S thyroglobulin with retention of a considerable portion of the three-dimensional stru...

Serum thyroglobulin measurement by immunoassay is used to detect residual or recurrent thyroid cancer after thyroid ablation. However, the usefulness of immunoassay is limited by both the requirement for thyroid hormone withdrawal to attain optimal test sensitivity and interference by antithyroglobulin antibodies. To circumvent these problems, we amplified thyroglobulin messenger ribonucleic ac...

The kinetics of iodination and oxidation of hog thyroglobulin were studied with purified hog thyroid peroxidase and the results were compared with the reactions of free tyrosine. From Lineweaver-Burk plots and on the basis of a value of 0.83 for delta epsilon mM at 289 nm/iodine atom incorporated, the rate constant for transfer of an assumed enzyme-bound iodinium cation to thyroglobulin was est...

Bovine thyroglobulin has been subjected to sequential glycohydrolase treatment in order to define further the components of the carbohydrate chain which are important in binding of the glycoprotein to bovine thyroid membranes. Preparations of asialoagalactothyroglobulin exhibit the best binding, suggesting that exposed N-acetylglucosamine residues on the B carbohydrate chain of thyroglobulin pl...

A key challenge in diagnostic pathology is to provide accurate and precise diagnostics with limited excised tissue. It is also increasingly important to test the tissue samples against multiple markers to enhance the confidence in results and sub-type the diseases for personalized treatment therapies. To this end, we performed local chemical reactions and staining on tissue sections using a sca...

BACKGROUND The etiology of chronic idiopathic urticaria (CIU) is not completely clear. There are a few antibodies were reported to correlate with CIU. OBJECTIVE To investigate the correlation these antibodies and CIU. METHODS The autologous serum skin test (ASST) and allergens were performed. Serum levels of immunoglobulin E (IgE), anti-FcεRI and anti-IgE, anti-Helicobacter pylori (HP) anti...

1. The analysis of the antibody response in autoimmune thyroid disease has followed several historical trends. It was the investigation of thyroid-reactive antibody that allowed the initial characterization of the three principle thyroid autoantigens, thyroglobulin, thyroid peroxidase and the thyroid stimulating hormone receptor. 2. Analysis can be grouped under two broad areas: analysis of the...