goiter/tyrosine

Angiogenesis is coordinated with follicular cell growth in goitrogenesis. The angiopoietins, Ang-1 and Ang-2, are angiogenic growth factors acting through Tie-2, a tyrosine kinase receptor. We have examined the expression and regulation of the angiopoietins and Tie-2 in human and rat thyroids. In

Abnormal H2O2 supply in the thyroid of a patient with goiter and iodine organification defect.

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A 71-yr-old man, clinically euthyroid, with a 570-g goiter causing severe mechanical neck compression underwent thyroidectomy. His total serum T4 level was 1.8 micrograms/dL, T3 was 200 ng/dL, and TSH was 35 microU/mL, and a perchlorate test was markedly abnormal. The excised thyroid tissue had

Different growth control of the two human thyroid cell lines of adenomatous goiter and papillary carcinoma.

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To study the growth control of human thyroid cells in different stages of differentiation, we established two human thyroid cell lines of adenomatous goiter and papillary carcinoma. A 59-year-old female patient with adenomatous goiter was operated in September 1991, and a 27-year-old female patient

[Identification of a 3' splice site mutation in the thyroglobulin gene in a case of congenital familial goiter].

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A case of congenital familial goiter with impaired thyroglobulin (Tg) synthesis has been reported. The patient is the fifth in a family of six children, three of whom have a goiter. The parents are cousins. The patient's thyroid function tests showed low T4 (1.0 microgram g/dl) and free T4 (0.2

MET receptor tyrosine kinase sequence alterations in differentiated thyroid carcinoma.

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Activating mutations affecting the MET receptor tyrosine kinase are present in several types of human cancer, particularly in papillary renal cell carcinoma. Papillary thyroid carcinomas commonly express high levels of MET mRNA and protein, suggesting that increased MET signaling may be of

Effects of 3-nitro-L-tyrosine on thyroid function in the rat: an experimental model for the dehalogenase defect.

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The effects on thyroid function of an inhibitor of tyrosine dehalogenase, 3-nitro-L-tyrosine (MNT) have been investigated in rats. In preliminary studies, marked inhibition of iodotyrosine deiodination was demonstrated in rats drinking 8 mM MNT. A series of experiments was then performed in which

High prevalence of RET tyrosine kinase activation in Mexican patients with papillary thyroid carcinomas.

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RET/PTC oncogene expression is restricted to papillary thyroid carcinomas (PTC). At least three forms of this oncogene have been described. These are generated by the rearrangement of the 5'-terminal region of different expressed genes with the tyrosine-kinase (TK) domain of the ret proto-oncogene.

Expression of the Axl receptor tyrosine kinase in human thyroid carcinoma.

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Protein tyrosine kinases (PTKs) play a crucial role in regulating thyroid cell growth and differentiation. The Axl protein is a member of a new family of receptor tyrosine kinases, of which the ligand, Gas6, a protein S-related molecule, recently was proved to be a mitogenic factor for human thyroid

Circulating immunoglobulin E (IgE) antibodies to L-thyroxine in a euthyroid patient with multinodular goiter and allergic rhinitis.

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A 30-yr-old woman with allergic rhinitis and multinodular goiter developed atopic manifestations on different desiccated thyroid extract treatment. Urticaria was observed when the patient was on L-T4 treatment; no atopy was experienced during L-T3 regimen. Serum total immunoglobulin E (IgE)

A 3' splice site mutation in the thyroglobulin gene responsible for congenital goiter with hypothyroidism.

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A case of congenital goiter with defective thyroglobulin synthesis has been studied in molecular terms. The patient is the fifth of a kindred of six, three of which have a goiter. The parents are first cousins. Segregation of thyroglobulin alleles in the family was studied by Southern blotting with

Congenital goitre due to "thyroid peroxidase-iodinase defect".

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A 16-year-old male cretin with congenital goitrous hypothyroidism and 95% discharge in the perchlorate test underwent thyroidectomy. Thyroid studies disclosed negligible peroxidase (TPO) activity in the tyrosine iodinase assay, 6 nmoles I- inc./g (normals: 220-410). Using the same particulate

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