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The mechanism of thyroxine transfer from plasma to tissue binding sites

1. An examination has been made of the uptake of thyroxine by rat livers perfused with very dilute solutions of thyroxine-binding globulin (TBG) and thyroxine-binding pre-albumin (TBPA). 2. Under these circumstances the rate of transfer of thyroxine to the liver is very similar to the rate of thyrox...

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Published in:The Journal of physiology 1971-09, Vol.217 (3), p.635-639
Main Author: Hillier, A. P.
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Language:English
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description 1. An examination has been made of the uptake of thyroxine by rat livers perfused with very dilute solutions of thyroxine-binding globulin (TBG) and thyroxine-binding pre-albumin (TBPA). 2. Under these circumstances the rate of transfer of thyroxine to the liver is very similar to the rate of thyroxine dissociation for both TBG and TBPA. 3. It is concluded that thyroxine transfer from plasma to tissue-binding sites involves its initial release into the free state and not, as has been suggested, directed exchange.
doi_str_mv 10.1113/jphysiol.1971.sp009590
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It is concluded that thyroxine transfer from plasma to tissue-binding sites involves its initial release into the free state and not, as has been suggested, directed exchange.</description><subject>Animals</subject><subject>Binding Sites</subject><subject>In Vitro Techniques</subject><subject>Liver - metabolism</subject><subject>Perfusion</subject><subject>Protein Binding</subject><subject>Rats</subject><subject>Serum Albumin - metabolism</subject><subject>Serum Globulins - metabolism</subject><subject>Thyroxine - metabolism</subject><subject>Thyroxine-Binding Proteins - metabolism</subject><issn>0022-3751</issn><issn>1469-7793</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1971</creationdate><recordtype>article</recordtype><recordid>eNqNkUFv1DAQhS1EVZbCTwD5RE_ZeuLYsS9IUEEBVYLDcrYcZ7JxlcTBztLm35NVthXcOFma997n0TxC3gLbAgC_uhvbOfnQbUGXsE0jY1po9oxsoJA6K0vNn5MNY3me8VLAC_IypTvGgDOtz8l5obWWZbEhN7sWaY-utYNPPQ0Nndo5hgc_IJ2iHVKDkTYx9HTsbOotnQKdfEoHpJUfaj_safITplfkrLFdwten94L8_Pxpd_0lu_1-8_X6w23mBGMiK7CqKqzRukIJV3NVsAJkXRUKUXOhq2aZNTZ3gFJJJbh0QshaQS2UhbzhF-T9yh0PVY-1w2HZsjNj9L2NswnWm3-VwbdmH34b4ByELBfAuxMghl8HTJPpfXLYdXbAcEhGAeSFVLAY5Wp0MaQUsXn6BJg5VmAeKzDHCsxjBUvwzd8rPsVON1_0j6t-7zuc_5Nqdt9-HAc5lFxysUAuV0jr9-29j2jWWArO4zSbxWe4OTr_AHPUqpY</recordid><startdate>19710901</startdate><enddate>19710901</enddate><creator>Hillier, A. 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An examination has been made of the uptake of thyroxine by rat livers perfused with very dilute solutions of thyroxine-binding globulin (TBG) and thyroxine-binding pre-albumin (TBPA). 2. Under these circumstances the rate of transfer of thyroxine to the liver is very similar to the rate of thyroxine dissociation for both TBG and TBPA. 3. It is concluded that thyroxine transfer from plasma to tissue-binding sites involves its initial release into the free state and not, as has been suggested, directed exchange.</abstract><cop>England</cop><pub>The Physiological Society</pub><pmid>4999674</pmid><doi>10.1113/jphysiol.1971.sp009590</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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subjects Animals
Binding Sites
In Vitro Techniques
Liver - metabolism
Perfusion
Protein Binding
Rats
Serum Albumin - metabolism
Serum Globulins - metabolism
Thyroxine - metabolism
Thyroxine-Binding Proteins - metabolism
title The mechanism of thyroxine transfer from plasma to tissue binding sites
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