| Thyroid albumin originates from blood. | |
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MedLine Citation:
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PMID: 1639008 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Iodoalbumin has been found in the goiter of Dutch goats with a thyroglobulin synthesis defect. Immunohistochemical studies showed that in the goiter the percentage of follicles containing albumin was higher than that in normal thyroid glands. In the albumin-containing follicles of normal and goitrous glands, transferrin and immunoglobulin G could be found. Also, between the epithelial cells, serum proteins were detected. These results indicate intercellular passage of serum proteins. After in vivo labeling with 125I, goiter slices were incubated with [3H] leucine. Purified 125I-containing albumin did not contain [3H]leucine, while thyroglobulin antigens were double labeled. Cyanogen bromide treatment of albumin out of the goiter and of serum albumin gave comparable cleavage patterns, indicating that no great differences in amino acid composition, especially methionine, exist. In total RNA from goiter, no albumin mRNA could be detected after blotting and hybridization with goat albumin cDNA. Also, the polymerase chain reaction method with albumin DNA primers was unable to detect any albumin mRNA in normal and goitrous glands of goats. From these results we conclude that "thyralbumin" originates from blood and is not synthesized by the thyroid gland. |
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Authors:
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J J de Vijlder; G J Veenboer; J E van Dijk |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Endocrinology Volume: 131 ISSN: 0013-7227 ISO Abbreviation: Endocrinology Publication Date: 1992 Aug |
Date Detail:
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Created Date: 1992-09-02 Completed Date: 1992-09-02 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0375040 Medline TA: Endocrinology Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 578-84 Citation Subset: AIM; IM |
Affiliation:
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Department of Experimental Pediatric Endocrinology, University of Amsterdam, The Netherlands. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Base Sequence Cyanogen Bromide / pharmacology Goats Goiter / metabolism Immunoenzyme Techniques Immunoglobulin G / metabolism Iodine Radioisotopes Leucine / metabolism Molecular Sequence Data Nucleic Acid Hybridization Polymerase Chain Reaction RNA, Messenger / analysis Serum Albumin / genetics, metabolism* Thyroid Gland / metabolism* Transferrin / metabolism |
| Chemical | |
Reg. No./Substance:
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0/Immunoglobulin G; 0/Iodine Radioisotopes; 0/RNA, Messenger; 0/Serum Albumin; 11096-37-0/Transferrin; 506-68-3/Cyanogen Bromide; 61-90-5/Leucine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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