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Department of Clinical Sciences, Lund University, Lund, Sweden
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Department of Clinical Sciences, Lund University, Lund, Sweden
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Department of Clinical Sciences, Lund University, Lund, Sweden
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Department of Clinical Sciences, Lund University, Lund, Sweden
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positive for TSH receptor blocking antibodies, followed by hyperthyroidism positive for TSH receptor-stimulating antibodies, after an episode of SAT. This was similar to our patient who developed TSH receptor antibodies and hypothyroidism, which remained
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Established Facts Maternal TSH receptor-blocking antibodies (TBAbs) are a known cause of transient congenital hypothyroidism. Novel Insights Congenital hypothyroidism due to TBAbs can occur in case of a normal concentration
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Introduction Antibodies (Ab) to the thyroid-stimulating hormone receptor (TSHR) may mimic [ 1 - 3 ] or block [ 4 ] the action of TSH or be functionally neutral [ 5 ]. TSHR stimulating Ab (TSAb) are responsible for many of the clinical
FMTS, Faculté de Médecine, Université de Strasbourg, Strasbourg
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Inserm U1037, Université Paul Sabatier, Toulouse, France
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etiologies Laboratory Investigations A complete blood count was requested for the majority of patients, most likely with the idea to treat with antithyroid drugs. Anti-TSH receptor antibodies (TRAb) were tested in slightly less than 60% of the
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determination would be repeated by 68.5 and 66.5%, respectively. TSH receptor antibodies (TRAb), peroxidase antibodies (TPOAb), and thyroglobulin antibodies (TgAb) would be requested by 93.9, 76.8, and 58%, respectively. Complete blood count (CBC) is considered
Department of Clinical Sciences, Lund University, Lund
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Department of Clinical Sciences, Lund University, Lund
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Department of Clinical Sciences, Lund University, Lund
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Department of Clinical Sciences, Lund University, Lund
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, plasma concentrations of TSH <0.2 mIU/l, and increased plasma levels of free T 4 and/or free T 3 . The patients were classified as having GD on the basis of clinical signs, the presence of TSH receptor antibodies (TRAb) and/or a diffuse uptake on thyroid
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Department of Pediatric Endocrinology, Royal Victoria Infirmary, Newcastle-upon-Tyne, UK
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Endocrine Unit, Royal Victoria Infirmary, Newcastle-upon-Tyne, UK
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. ATD, antithyroid drug; CBZ, carbimazole; FT3, free triiodothyronine; FT4, free thyroxine; kg, kilogram; MMI, methimazole; TSH, thyrotropin; TSHRAb, TSH receptor antibodies. Table 4 Framework for managing patients with block and replace
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/ml; radioimmunometric and immunoenzymatic methods). Assay interference from anti-TSH antibodies was suspected; however, not proven. TSH measurements were repeated after sample incubation in heterophile-blocking tubes (Scantibodies Laboratory). The results did not
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) . 2010 Sep ; 73 ( 3 ): 404 – 12 . 10.1111/j.1365-2265.2010.03831.x 20550534 0300-0664 21 Furmaniak J , Sanders J , Rees Smith B . Blocking type TSH receptor antibodies . Auto Immun Highlights . 2012 Mar ; 4 ( 1 ): 11 – 26 . 10
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CARMEN-INSERM U1060, Université Claude Bernard Lyon 1, Faculté de Médecine et de Maïeutique Lyon Sud - Charles Mérieux, Oullins
Société Française de Médecine Nucléaire, Groupe de Biologie Spécialisée, Centre Antoine Béclère, Paris
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CARMEN-INSERM U1060, Université Claude Bernard Lyon 1, Faculté de Médecine et de Maïeutique Lyon Sud - Charles Mérieux, Oullins
Société Française de Médecine Nucléaire, Groupe de Biologie Spécialisée, Centre Antoine Béclère, Paris
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Laboratoire du Service de Médecine Nucléaire, Centre Hospitalier de Chambéry, Chambéry
Pôle de Biologie, Centre Hospitalier et Universitaire de Grenoble
UMR-S INSERM 1037, Grenoble, France
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-Aldrich), pH 7.4. Cyclic AMP released from the cells was measured by RIA (Immunotech, Marseille, France). The negative sera of pooled TSH-receptor antibodies (normal sera) were used to measure cAMP basal production. Results were expressed as the ratio of