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Antonangeli L, Antonuzzo A, Brogioni S, Chella A, Cremolini C, Latrofa F, Lupi I, Marcocci C, Montanelli L, Pierotti L, Santini F, Sardella C, Sgrò D, Viola N, Brancatella A. OR11-3 Steroid Treatment in the Management of Destructive Thyrotoxicosis Induced by PD1 Blockade. J Endocr Soc 2022. [PMCID: PMC9627186 DOI: 10.1210/jendso/bvac150.1653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background Destructive thyroiditis is the most common endocrine immune related adverse event (iRAEs) in patients treated with anti-PD1/PD-L1 agents. Given its self-limited course, current guidelines recommend no treatment for this iRAE. Nevertheless in patients with enlarged thyroid volume and a poor performance status, thyrotoxicosis may be particularly severe and harmful. Aim of the study is to evaluate if steroid treatment might be useful in improving thyrotoxicosis in subjects with a poor performance status. Methods We conducted a case-control study, comparing the course of thyrotoxicosis of 4 patients treated with oral prednisone at the dosage of 25 mg/d (tapered to discontinuation in three weeks) and an enlarged thyroid volume to that of 8 patients with similar thyroid volume who were left untreated. Results No difference was found between the two groups at the onset of thyrotoxicosis (time 0) in demographic characteristics and in the levels of thyroid hormones. The levels of thyroid hormones were lower in subjects treated with prednisone compared to those untreated at time 7, 14, 21, 28, 35, 42, 60 and 90 days (P<0.05 at each time). The median time to remission of thyrotoxicosis was 24 days in patients treated with steroids and 92 days in untreated patients (P<0.001). At 6 months, the rate of evolution to hypothyroidism was similar in the 2 groups (4/4 in steroid group vs 7/8 in untreated group, P=0.74) and no difference was found in tumor progression (Progression free survival in treated group 5.1 months vs 5.0 months in untreated patients, P=0.89). Conclusion A short period of prednisone therapy is useful to restore more quickly euthyroidism in patients with a poor performance status and a severe destructive thyrotoxicosis induced by PD-1 blockade. This treatment does not impair the efficacy of immunotherapy. Presentation: Sunday, June 12, 2022 11:30 a.m. - 11:45 a.m.
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Brancatella A, Pierotti L, Viola N, Lupi I, Montanelli L, Cremolini C, Piaggi P, Chella A, Antonuzzo A, Sgrò D, Antonangeli L, Sardella C, Brogioni S, Marcocci C, Santini F, Latrofa F. Steroid treatment in the management of destructive thyrotoxicosis induced by PD1 blockade. Eur Thyroid J 2022; 11:e220030. [PMID: 35622442 PMCID: PMC9254312 DOI: 10.1530/etj-22-0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 05/27/2022] [Indexed: 11/16/2022] Open
Abstract
Objective Destructive thyroiditis is the most common endocrine immune-related adverse event (iRAEs) in patients treated with anti-PD1/PD-L1 agents. Given its self-limited course, current guidelines recommend no treatment for this iRAE. Nevertheless, in patients with enlarged thyroid volume and a poor performance status, thyrotoxicosis may be particularly severe and harmful. The aim of the study is to evaluate if steroid treatment might be useful in improving thyrotoxicosis in subjects with a poor performance status. Methods We conducted a retrospective study, comparing the course of thyrotoxicosis of four patients treated with oral prednisone at the dosage of 25 mg/day (tapered to discontinuation in 3 weeks) and an enlarged thyroid volume to that of eight patients with similar thyroid volume who were left untreated. Results The levels of thyroid hormones were lower in subjects treated compared to those untreated at time of 7, 14, 21, 28, 35, 42, 60 and 90 days (P < 0.05 at each time). The time to remission of thyrotoxicosis was 24 days in patients treated with steroids and 120 days in untreated patients (P < 0.001). At 6 months, the rate of evolution to hypothyroidism was similar in the two groups (4/4 in the steroid group vs 7/8 in the untreated group, P = 0.74) and no difference was found in tumor progression (P = 0.89). Conclusions Our preliminary data suggest that in patients with a poor performance status experiencing a severe destructive thyrotoxicosis induced by PD-1 blockade, a short period of administration of oral prednisone is effective in obtaining a quick reduction of the levels of thyroid hormones.
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Affiliation(s)
- Alessandro Brancatella
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Laura Pierotti
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Nicola Viola
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Isabella Lupi
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Lucia Montanelli
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Chiara Cremolini
- Oncology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Paolo Piaggi
- Department of Information Engineering, University of Pisa, Pisa, Italy
| | - Antonio Chella
- Pneumology Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | - Andrea Antonuzzo
- Oncology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Daniele Sgrò
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Lucia Antonangeli
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Chiara Sardella
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Sandra Brogioni
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Claudio Marcocci
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Ferruccio Santini
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Francesco Latrofa
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
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Brancatella A, Lupi I, Montanelli L, Ricci D, Viola N, Sgrò D, Antonangeli L, Sardella C, Brogioni S, Piaggi P, Molinaro E, Bianchi F, Aragona M, Antonuzzo A, Sbrana A, Lucchesi M, Chella A, Falcone A, Del Prato S, Elisei R, Marcocci C, Caturegli P, Santini F, Latrofa F. Management of Thyrotoxicosis Induced by PD1 or PD-L1 Blockade. J Endocr Soc 2021; 5:bvab093. [PMID: 34337277 PMCID: PMC8317632 DOI: 10.1210/jendso/bvab093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Indexed: 12/18/2022] Open
Abstract
Context Thyrotoxicosis is a common immune-related adverse event in patients treated with programmed cell death protein-1 (PD1) or programmed cell death protein ligand-1 (PD-L1) blockade. A detailed endocrinological assessment, including thyroid ultrasound and scintigraphy, is lacking, as are data on response to treatment and follow-up. Objective The aim of this study was to better characterize the thyrotoxicosis secondary to immune checkpoint inhibitors, gaining insights into pathogenesis and treatment. Methods We conducted a retrospective study of 20 consecutive patients who had normal thyroid function before starting immunotherapy and then experienced thyrotoxicosis on PD1 or PD-L1 blockade. Clinical assessment was combined with thyroid ultrasound, 99mtechnecium scintiscan, and longitudinal thyroid function tests. Results Five patients had normal or increased scintigraphic uptake (Sci+), no serum antibodies against the thyrotropin receptor, and remained hyperthyroid throughout follow-up. The other 15 patients had no scintigraphic uptake (Sci–) and experienced destructive thyrotoxicosis followed by hypothyroidism (N = 9) or euthyroidism (N = 6). Hypothyroidism was more readily seen in those with normal thyroid volume than in those with goiter (P = .04). Among Sci– individuals, a larger thyroid volume was associated with a longer time to remission (P < .05). Methimazole (MMI) was effective only in Sci+ individuals (P < .05). Conclusion Administration of PD1- or PD-L1–blocking antibodies may induce 2 different forms of thyrotoxicosis that appear similar in clinical severity at onset: a type 1 characterized by persistent hyperthyroidism that requires treatment with MMI, and a type 2, characterized by destructive and transient thyrotoxicosis that evolves to hypothyroidism or euthyroidism. Thyroid scintigraphy and ultrasound help in differentiating and managing these 2 forms of iatrogenic thyrotoxicosis.
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Affiliation(s)
| | - Isabella Lupi
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Lucia Montanelli
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Debora Ricci
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa 56126, Italy
| | - Nicola Viola
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa 56126, Italy
| | - Daniele Sgrò
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa 56126, Italy
| | - Lucia Antonangeli
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Chiara Sardella
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Sandra Brogioni
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Paolo Piaggi
- Department of Information Engineering, University of Pisa, Pisa 56126, Italy
| | - Eleonora Molinaro
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Francesca Bianchi
- Nuclear Medicine Unit, Azienda Ospedaliero-Unuversitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Michele Aragona
- Metabolic Diseases and Diabetes Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Andrea Antonuzzo
- Oncology Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56126, Italy
| | - Andrea Sbrana
- Oncology Unit, Azienda Ospedaliero-Universitaria Pisana and Department of Translational Research and New Technologies in Medicine and Surgery, University Hospital of Pisa, Pisa 56126, Italy
| | - Maurizio Lucchesi
- Pneumology Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Antonio Chella
- Pneumology Unit, Azienda Ospedaliero-Universitaria Pisana, University Hospital of Pisa, Pisa 56124, Italy
| | - Alfredo Falcone
- Oncology Unit, Azienda Ospedaliero-Univeritaria Pisana and Department of Translational Research and New Technologies in Medicine abd Surgery, University Hospital of Pisa, Pisa 56126, Italy
| | - Stefano Del Prato
- Metabolic Diseases and Diabetes Unit, Azienda Ospedaliero-Universitaria Pisana and Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa 56124, Italy
| | - Rossella Elisei
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana and Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa 56124, Italy
| | - Claudio Marcocci
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana and Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa 56124, Italy
| | - Patrizio Caturegli
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - Ferruccio Santini
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana and Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa 56124, Italy
| | - Francesco Latrofa
- Endocrinology Unit, Azienda Ospedaliero-Universitaria Pisana and Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa 56124, Italy
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Brancatella A, Lupi I, Montanelli L, Ricci D, Viola N, Sgrò D, Antonangeli L, Sardella C, Brogioni S, Piaggi P, Molinaro E, Bianchi F, Aragona M, Antonuzzo A, Sbrana A, Lucchesi M, Chella A, Alfredo F, Del Prato S, Elisei R, Marcocci C, Caturegli P, Santini F, Latrofa F. Management of Thyrotoxicosis Induced by PD1 or PD-L1 Blockade. J Endocr Soc 2021. [PMCID: PMC8090051 DOI: 10.1210/jendso/bvab048.1716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Abstract
Context: Thyrotoxicosis is a common immune-related adverse event in patients treated with PD1 or PD-L1 checkpoint inhibitors. A detailed endocrinological assessment, including thyroid ultrasound and scintigraphy is missing, as are data on response to treatment and follow-up. Objectives: To better characterize the thyrotoxicosis secondary to immune checkpoint inhibitors, gaining insights into pathogenesis and informing management. Methods: We conducted a prospective cohort study of 20 consecutive patients who had normal thyroid function before starting immunotherapy and then experienced thyrotoxicosis upon PD1 or PD-L1 blockade. Clinical assessment was combined with thyroid ultrasound, scintigraphy, and longitudinal thyroid function tests. Results: Five patients had normal scintigraphic uptake (Sci+), no serum antibodies against the TSH receptor, and remained hyperthyroid throughout follow-up. The other 15 patients had no scintigraphic uptake (Sci-) and experienced destructive thyrotoxicosis followed by hypothyroidism (N= 9) or euthyroidism (N= 6). Hypothyroidism was more readily seen in those with normal thyroid volume than in those with goiter (P= 0.04). Among Sci- subjects, a larger thyroid volume was associated to a longer time to remission (P<0.05). Methimazole (MMI) was effective only in Sci+ subjects (P<0.05). Conclusions: Administration of PD1 or PD-L1 blocking antibodies may induce two different forms of thyrotoxicosis that appear similar in clinical severity at onset: a type 1 characterized by persistent hyperthyroidism that requires treatment with MMI, and a type 2 characterized by destructive and transient thyrotoxicosis that evolves to hypo- or eu-thyroidism. Thyroid scintigraphy and ultrasound help differentiating and managing these two forms of iatrogenic thyrotoxicosis
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Affiliation(s)
- Alessandro Brancatella
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Isabella Lupi
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Lucia Montanelli
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Debora Ricci
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Nicola Viola
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Daniele Sgrò
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Lucia Antonangeli
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Chiara Sardella
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Sandra Brogioni
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Paolo Piaggi
- Department of Information Engineering, University of Pisa, Pisa, Italy
| | - Eleonora Molinaro
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Francesca Bianchi
- Department of Nuclear Medicine, University Hospital of Pisa, Pisa, Italy
| | - Michele Aragona
- Section of Metabolic Diseases and Diabetes, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Andrea Antonuzzo
- Oncology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Andrea Sbrana
- Oncology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Maurizio Lucchesi
- Pneumology Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | - Antonio Chella
- Pneumology Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | - Falcone Alfredo
- Oncology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Stefano Del Prato
- Section of Metabolic Diseases and Diabetes, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Rossella Elisei
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Claudio Marcocci
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Patrizio Caturegli
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ferruccio Santini
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - Francesco Latrofa
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
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Fast S, Hegedüs L, Pacini F, Pinchera A, Leung AM, Vaisman M, Reiners C, Wemeau JL, Huysmans DA, Harper W, Rachinsky I, de Souza HN, Castagna MG, Antonangeli L, Braverman LE, Corbo R, Düren C, Proust-Lemoine E, Marriott C, Driedger A, Grupe P, Watt T, Magner J, Purvis A, Graf H. Long-term efficacy of modified-release recombinant human thyrotropin augmented radioiodine therapy for benign multinodular goiter: results from a multicenter, international, randomized, placebo-controlled, dose-selection study. Thyroid 2014; 24:727-35. [PMID: 24341527 PMCID: PMC3993022 DOI: 10.1089/thy.2013.0370] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Enhanced reduction of multinodular goiter (MNG) can be achieved by stimulation with recombinant human thyrotropin (rhTSH) before radioiodine ((131)I) therapy. The objective was to compare the long-term efficacy and safety of two low doses of modified release rhTSH (MRrhTSH) in combination with (131)I therapy. METHODS In this phase II, single-blinded, placebo-controlled study, 95 patients (57.2 ± 9.6 years old, 85% women, 83% Caucasians) with MNG (median size 96.0 mL; range 31.9-242.2 mL) were randomized to receive placebo (n=32), 0.01 mg MRrhTSH (n=30), or 0.03 mg MRrhTSH (n=33) 24 hours before a calculated (131)I activity. Thyroid volume (TV) and smallest cross-sectional area of trachea (SCAT) were measured (by computed tomography scan) at baseline, six months, and 36 months. Thyroid function and quality of life (QoL) was evaluated at three-month and yearly intervals respectively. RESULTS At six months, TV reduction was enhanced in the 0.03 mg MRrhTSH group (32.9% vs. 23.1% in the placebo group; p=0.03) but not in the 0.01 mg MRrhTSH group. At 36 months, the mean percent TV reduction from baseline was 44 ± 12.7% (SD) in the placebo group, 41 ± 21.0% in the 0.01 mg MRrhTSH group, and 53 ± 18.6% in the 0.03 mg MRrhTSH group, with no statistically significant differences among the groups, p=0.105. In the 0.03 mg MRrhTSH group, the subset of patients with basal (131)I uptake <20% had a 24% greater TV reduction at 36 months than the corresponding subset of patients in the placebo group (p=0.01). At 36 months, the largest relative increase in SCAT was observed in the 0.03 mg MRrhTSH group (13.4 ± 23.2%), but this was not statistically different from the increases observed in the placebo or the 0.01 mg MRrhTSH group (p=0.15). Goiter-related symptoms were reduced and QoL improved, without any enhanced benefit from using MRrhTSH. At three years, the prevalence of permanent hypothyroidism was 13%, 33%, and 45% in the placebo, 0.01 mg, and 0.03 mg MRrhTSH groups respectively. The overall safety profile of the study was favorable. CONCLUSIONS When used as adjuvant to (131)I, enhanced MNG reduction could not be demonstrated with MRrhTSH doses ≤ 0.03 mg, indicating that the lower threshold for efficacy is around this level.
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Affiliation(s)
- Søren Fast
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
| | - Laszlo Hegedüs
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
| | - Furio Pacini
- Section of Endocrinology and Metabolism, University of Siena, Siena, Italy
| | - Aldo Pinchera
- WHO Collaborating Center for the Diagnosis and Treatment of Thyroid Cancer and Other Thyroid Diseases, Department of Endocrinology, University Hospital of Pisa, Pisa, Italy
| | - Angela M. Leung
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston, Massachusetts
| | - Mario Vaisman
- Department of Internal Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Christoph Reiners
- Department of Nuclear Medicine, University of Wuerzburg, Wuerzburg, Germany
| | - Jean-Louis Wemeau
- Department of Endocrinology, Clinique Marc Linquette, Hôpital Huriez, CHRU Lille, Lille, France
| | - Dyde A. Huysmans
- Department of Nuclear Medicine, Catharina Hospital, Eindhoven, The Netherlands
| | - William Harper
- Department of Internal Medicine, Hamilton General Hospital, Hamilton, Canada
| | - Irina Rachinsky
- Nuclear Medicine Department, London Health Sciences Center, London, Canada
| | - Hevelyn Noemberg de Souza
- Service of Endocrinology and Metabolism (SEMPR), Clinics Hospital of the Federal University of Paraná, Curitiba, Brazil
| | - Maria G. Castagna
- Section of Endocrinology and Metabolism, University of Siena, Siena, Italy
| | - Lucia Antonangeli
- WHO Collaborating Center for the Diagnosis and Treatment of Thyroid Cancer and Other Thyroid Diseases, Department of Endocrinology, University Hospital of Pisa, Pisa, Italy
| | - Lewis E. Braverman
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston, Massachusetts
| | - Rossana Corbo
- Department of Internal Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Christian Düren
- Department of Nuclear Medicine, University of Wuerzburg, Wuerzburg, Germany
| | | | | | - Albert Driedger
- Nuclear Medicine Department, London Health Sciences Center, London, Canada
| | - Peter Grupe
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark
| | - Torquil Watt
- Department of Endocrinology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - James Magner
- Department of Endocrinology, Genzyme, (a Sanofi Company), Cambridge, Massachusetts
| | - Annie Purvis
- Department of Biostatistics, Genzyme, (a Sanofi Company), Cambridge, Massachusetts
| | - Hans Graf
- Service of Endocrinology and Metabolism (SEMPR), Clinics Hospital of the Federal University of Paraná, Curitiba, Brazil
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Latrofa F, Fiore E, Rago T, Antonangeli L, Montanelli L, Ricci D, Provenzale MA, Scutari M, Frigeri M, Tonacchera M, Vitti P. Iodine contributes to thyroid autoimmunity in humans by unmasking a cryptic epitope on thyroglobulin. J Clin Endocrinol Metab 2013; 98:E1768-74. [PMID: 24064687 DOI: 10.1210/jc.2013-2912] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
CONTEXT The mechanisms linking thyroid autoimmunity and iodine use in humans are unknown. OBJECTIVE Our aim was to correlate iodine intake, thyroid autoimmunity, and recognition of thyroglobulin (Tg) epitopes after implementation of iodine prophylaxis. SETTING The general community living in an Italian village was evaluated. MAIN OUTCOME MEASURES Thyroglobulin autoantibodies (TgAb), thyroperoxidase autoantibodies (TPOAb), and urinary iodine excretion were assessed in 906 iodized salt users (IS-users) and 389 nonusers (IS-nonusers). Ultrasound (US) was performed to identify thyroid hypoechogenicity, suggestive of Hashimoto thyroiditis (HT). TgAb epitope pattern in 16 IS-users and 17 IS-nonusers was evaluated by an inhibition binding assay to Tg, using human monoclonal TgAb-Fab directed to A, B, C, and D epitopes on Tg. RESULTS Median urinary iodine excretion was slightly higher in IS-users than in IS-nonusers (112.0 μg/L vs 86.5 μg/L; P < .01). TgAb, and not TPOAb, was more frequent in IS-users (18.9% vs 13.6%, P = .02). HT-US was found in 87 subjects, among whom both positive TgAb (58.4% vs 31.8%, P = .03) and TPOAb (61.5% vs 45.4%. P = .04) were more frequent in IS-users. In this group significantly higher serum levels of TgAb (median 108 U/mL vs 30 U/mL; P = .02), but not of TPOAb, were present. Iodized salt use had no effect on the 1208 non HT-US subjects. TgAb directed to the epitope B of Tg were more frequent in IS-users than in IS-nonusers (27.5% vs 3.0%, P = .047). CONCLUSIONS Iodine-induced thyroid autoimmunity is related to TgAb and the unmasking of a cryptic epitope on Tg contributes to this relationship in humans.
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Affiliation(s)
- Francesco Latrofa
- Endocrinology Unit, University Hospital, University of Pisa, Via Paradisa 2, 56124, Pisa, Italy.
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Aghini-Lombardi F, Vitti P, Antonangeli L, Fiore E, Piaggi P, Pallara A, Consiglio E, Pinchera A. The size of the community rather than its geographical location better defines the risk of iodine deficiency: results of an extensive survey in Southern Italy. J Endocrinol Invest 2013; 36:282-6. [PMID: 23712195 DOI: 10.1007/bf03347103] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
AIM The objective of this study was to establish the status of iodine nutrition in Southern Italy. MATERIAL AND METHODS The survey was carried out on 11-14 yr old children attending primary school and living in urban and non urban areas of 8 regions of Southern Italy. Urinary iodine excretion (UIE) was measured in 23,103 urinary samples randomly collected. RESULTS Median UIE in the whole studied population was 74 μg/l [interquartile range (IR) 34-139 μg/l]. UIE was significantly higher in chief towns compared to non chief towns (81 μg/l, IR 39-145 μg/l vs 73 μg/l, IR 33-138 μg/l, p<0.0001) and in areas with >500 inhabitants per km² (median 87 μg/l, IR 43-154 μg/l) compared to areas with 100-500 per km² (median 66 μg/l, IR 29-126 μg/l, p<0.0001) and with <100 per km² (median 61 μg/l, IR 25-121 μg/l, p<0.0001). Median UIE was significantly lower in inland mountainous/hilly areas (68 μg/l, IR 30-129 μg/l) compared to coastal mountainous/hilly areas (79 μg/l, IR 37-144 μg/l, p<0.0001) and lowland (79 μg/l, IR 37-146 μg/l, p<0.0001). According to a binary logistic regression model, population density was the only independent parameter significantly associated with UIE ≥ 100 μg/l. CONCLUSION The results of the present survey indicate that: 1) in Southern Italy mild to moderate iodine deficiency is still present; 2) median UIE in non urban areas is lower than in urban areas and is related to the size of the community rather than to its geographical location, being higher in a larger community. This may be due to better diversification of dietary habits and the easier availability of iodized salt and processed food through commercial facilities, more common in larger communities. Future monitoring surveys should take into account these observations.
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Affiliation(s)
- F Aghini-Lombardi
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Via Paradisa 2, 56125 Pisa, Italy.
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Aghini Lombardi F, Fiore E, Tonacchera M, Antonangeli L, Rago T, Frigeri M, Provenzale AM, Montanelli L, Grasso L, Pinchera A, Vitti P. The effect of voluntary iodine prophylaxis in a small rural community: the Pescopagano survey 15 years later. J Clin Endocrinol Metab 2013; 98:1031-9. [PMID: 23436921 DOI: 10.1210/jc.2012-2960] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
CONTEXT Iodine deficiency disorders are a major public health problem, and programs have been implemented to improve iodine nutrition. OBJECTIVE The objective of the study was to verify the effects of voluntary iodine prophylaxis in a small rural community (Pescopagano, Italy). DESIGN The design of the study was the evaluation of the prevalence of thyroid disorders 15 years after a previous survey conducted before iodine prophylaxis. SETTING The setting for this study was a general community survey. PARTICIPANTS One thousand one hundred forty-eight residents were examined in 2010 and 1411 in 1995. RESULTS In 2010, 757 of 1148 subjects (65.9%) routinely used iodized salt, urinary iodine excretion being significantly higher than in 1955 (median 98.0 μg/L, vs 55.0 μg/L, P < .0001). The prevalence of goiter was lower in 2010 than in 1995 (25.8% vs 46.1%, P < .0001), mainly due to the reduction of diffuse goiter (10.3% vs 34.0%, P < .0001). In 2010 vs 1995, thyroid autonomy in subjects younger than 45 years old (3 of 579, 0.5% vs 25 of 1010, 2.5% P = .004) and nonautoimmune hyperthyroidism in subjects older than 45 years old (8 of 569, 1.4% vs 18 of 401, 4.5%, P = .03) were less frequent. The prevalence of hypothyroidism was higher in 2010 vs 1995 (5.0% vs 2.8%, P = .005), mainly because of an increased frequency of subclinical hypothyroidism in subjects younger than 15 years old (7 of 83, 8.4% vs 0 of 419, 0.0%, P < .0001). Accordingly, serum thyroid autoantibodies (19.5% vs 12.6%; P < .0001) and Hashimoto's thyroiditis (14.5% vs 3.5%; P < .0001) were more frequent in 2010 than in 1995. CONCLUSIONS In the present work, the role of voluntary iodine prophylaxis was assessed in a small rural community relatively segregated, in which genetic and other environmental factors have not substantially changed between the 2 surveys. Iodine intake strongly affected the pattern of thyroid diseases, but the benefits of correcting iodine deficiency (decreased prevalence of goiter and thyroid autonomy in younger subjects and reduced frequency of nonautoimmune hyperthyroidism in older subjects) far outweighs the risk of development of thyroid autoimmunity and mild hypothyroidism in youngsters.
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Affiliation(s)
- F Aghini Lombardi
- Department of Endocrinology and Metabolism, University of Pisa, via Paradisa 2, 56100 Pisa, Italy
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Minuto MN, Miccoli M, Viola D, Ugolini C, Giannini R, Torregrossa L, Antonangeli L, Aghini-Lombardi F, Elisei R, Basolo F, Miccoli P. Incidental versus clinically evident thyroid cancer: a 5-year follow-up study. Head Neck 2012; 35:408-12. [PMID: 22367912 DOI: 10.1002/hed.22974] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2011] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The incidence of differentiated thyroid cancer in patients undergoing surgery for presumed benign thyroid disease (incidental thyroid cancer) is not negligible. The purpose of this study was to verify if incidental thyroid cancers have a different clinical course than the clinically evident thyroid cancer. METHODS A group of patients with incidental thyroid cancer (n = 95) has been compared to a control group with clinically evident thyroid cancer (n = 93). Both the histology and the outcome after a 5-year follow-up have been compared. RESULTS At the univariate analysis, the groups demonstrated significant differences in many pathologic features, remnant ablation (p < .001), and persistent disease (p = .006). Nevertheless, the multivariate analysis revealed that the outcome was not influenced by the preoperative or the incidental diagnosis. CONCLUSION Incidental thyroid cancers show a different pathological pattern when compared to clinically evident thyroid cancers. Nonetheless, the final outcome is not influenced by preoperative or postoperative diagnosis. Hence, patients with incidental thyroid cancer should follow the same postoperative protocols of patients with clinically evident thyroid cancer.
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Ceccarelli C, Antonangeli L, Brozzi F, Bianchi F, Tonacchera M, Santini P, Mazzeo S, Bencivelli W, Pinchera A, Vitti P. Radioiodine 131I treatment for large nodular goiter: recombinant human thyrotropin allows the reduction of radioiodine 131I activity to be administered in patients with low uptake. Thyroid 2011; 21:759-64. [PMID: 21568727 DOI: 10.1089/thy.2010.0088] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND (131)I therapy is effective in reducing the volume of large nodular goiters (thyroid volume [TV]), mainly after stimulation with recombinant human thyrotropin (rhTSH). The amount of (131)I to be administered inversely depends on thyroid radioactive iodine uptake (RAIU). In patients with low RAIU, we evaluated the efficacy of (131)I treatment at lower doses with respect to those calculated on the basal RAIU, after rhTSH stimulation. METHODS Eighteen consecutive patients (17 women and 1 man, 49-83 years) with large nodular goiter were included in the study. At enrollment, 24th h RAIU, TSH, free thyroxine, free triiodothyronine, thyroglobulin antibodies, thyroid peroxidase antibodies, TSH receptors antibodies, urinary iodine, and TV were measured. RAIU was <40% in 11 patients (lower uptake group [LUG]) and >40% in 7 (higher uptake group [HUG]). RAIU difference in the two groups was significant (p < 0.0001). LUG patients were treated with rhTSH (0.03 mg i.m.) and RAIU was measured again after 24 hours. The administered amount of (131)I was aimed to give the thyroid a dose of 100 Gy, by the formula: (131)I activity = 370 MBq × TV (mL)/RAIU(%), taking into account RAIU value after rhTSH for LUG patients. Patients were re-evaluated 3 and 12 months after therapy. RESULTS At enrollment, LUG and HUG patients did not differ for TV, free thyroxine, free triiodothyronine, TSH, and urinary iodine. LUG patients were older than HUG patients (p = 0.027). In LUG, the uptake increased after rhTSH (42.8% [36%-47.5%] vs. 30% [23.4%-31.6%], p = 0.0044). The (131)I activity was 1073 MBq (740-1103 MBq) in LUG and 851 MBq (677-918 MBq) in HUG (p = 0.22, NS), vs. 1300 MBq (1077-2150 MBq) in LUG, based on RAIU before rhTSH. At 3 and 12 months after radioiodine, TV was reduced to 74% [59%-84%] and 53% [42%-72%] in LUG and 75% [70%-77%] and 65% [54%-74%] in HUG, respectively. The reduction was significant with respect to the basal, both at 3 and 12 months, but not different between the two groups. CONCLUSIONS One single dose of 0.03 mg of rhTSH increased the thyroid RAIU by 40% in patients with nodular goiter and low basal uptake. This allowed a mean reduction of 36% (26%-42%) in the administered (131)I activity without loss of effectiveness. In patients with low RAIU, rhTSH pre-treatment may optimize (131)I therapy.
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Graf H, Fast S, Pacini F, Pinchera A, Leung A, Vaisman M, Reiners C, Wemeau JL, Huysmans D, Harper W, Driedger A, de Souza HN, Castagna MG, Antonangeli L, Braverman L, Corbo R, Düren C, Proust-Lemoine E, Edelbroek MA, Marriott C, Rachinsky I, Grupe P, Watt T, Magner J, Hegedus L. Modified-release recombinant human TSH (MRrhTSH) augments the effect of (131)I therapy in benign multinodular goiter: results from a multicenter international, randomized, placebo-controlled study. J Clin Endocrinol Metab 2011; 96:1368-76. [PMID: 21346067 DOI: 10.1210/jc.2010-1193] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Recombinant human TSH (rhTSH) can be used to enhance (131)I therapy for shrinkage of multinodular goiter (MG). OBJECTIVE, DESIGN, AND SETTING The objective of the study was to compare the efficacy and safety of 0.01 and 0.03 mg modified-release (MR) rhTSH as an adjuvant to (131)I therapy, vs. (131)I alone, in a randomized, placebo-controlled, international, multicenter study. PATIENTS AND INTERVENTION Ninety-five patients (57.2 ± 9.6 yr old, 85% females, 83% Caucasians) with MG (median size 96.0, range 31.9-242.2 ml) were randomized to receive placebo (group A, n = 32), MRrhTSH 0.01 mg (group B, n = 30), or MRrhTSH 0.03 mg (group C, n = 33) 24 h before a calculated activity of (131)I. MAIN OUTCOME MEASURES The primary end point was a change in thyroid volume (by computerized tomography scan, at 6 months). Secondary end points were the smallest cross-sectional area of the trachea; thyroid function tests; Thyroid Quality of Life Questionnaire; electrocardiogram; and hyperthyroid symptom scale. RESULTS Thyroid volume decreased significantly in all groups. The reduction was comparable in groups A and B (23.1 ± 8.8 and 23.3 ± 16.5%, respectively; P = 0.95). In group C, the reduction (32.9 ± 20.7%) was more pronounced than in groups A (P = 0.03) and B. The smallest cross-sectional area of the trachea increased in all groups: 3.8 ± 2.9% in A, 4.8 ± 3.3% in B, and 10.2 ± 33.2% in C, with no significant difference among the groups. Goiter-related symptoms were effectively reduced and there were no major safety concerns. CONCLUSION In this dose-selection study, 0.03 mg MRrhTSH was the most efficacious dose as an adjuvant to (131)I therapy of MG. It was well tolerated and significantly augmented the effect of (131)I therapy in the short term. Larger studies with long-term follow-up are warranted.
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Affiliation(s)
- H Graf
- Serviço de Endocrinologia e Metabologia do Hospital de Clínicas da Universidade Federal do Paraná, 80810-070 Curitiba, Brazil.
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Di Bello V, Aghini-Lombardi F, Monzani F, Talini E, Antonangeli L, Palagi C, Di Cori A, Caraccio N, Delle Donne MG, Dardano A, Pinchera A, Mariani M. Early abnormalities of left ventricular myocardial characteristics associated with subclinical hyperthyroidism. J Endocrinol Invest 2007; 30:564-71. [PMID: 17848839 DOI: 10.1007/bf03346350] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of the present study was to analyze heart function in subclinical hyperthyroidism (sHT) in otherwise healthy subjects by new methods using intramyocardial ultrasonic techniques. Twenty-four newly diagnosed and untreated sHT patients (20 women, 4 men; mean age: 42+/-4 yr) and 24 sex- and age-matched healthy volunteers were studied. All subjects were submitted to conventional 2D color-Doppler echocardiography, pulsed wave tissue Doppler imaging (PWTDI) for the analysis of diastolic function, color Doppler myocardial imaging (CDMI) for the analysis of regional strain and strain rate (SR) expression of regional myocardial deformability, and to integrated backscatter (IBS) for the evaluation of intrinsic contractility and tissue characterization. Regional myocardial systolic strain findings were significantly higher in sHT patients when compared with controls (p<0.001). Considering diastolic SR, the early phase of diastolic SR was compromised in sHT subjects as compared with controls (p<0.001). Cyclic variation index (CVI), expression of intrinsic contractility, was significantly higher in sHT subjects in comparison with controls (p<0.0001). IBS values were comparable between the 2 study groups. In conclusion, the present study suggests that in patients with sHT early systolic hyperdeformability and hypercontractility are present, together with impairment of both active and passive phases of diastole. On the contrary, no left ventricular hypertrophy or other structural alterations are documented.
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Affiliation(s)
- V Di Bello
- Cardiac Thoracic and Vascular Department, University of Pisa, 56124 Pisa, Italy.
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Aghini-Lombardi F, Fabrizio AL, Di Bello V, Vitantonio DB, Talini E, Enrica T, Di Cori A, Andrea DC, Monzani F, Fabio M, Antonangeli L, Lucia A, Palagi C, Caterina P, Caraccio N, Nadia C, Grazia Delle Donne M, Grazia DDM, Nardi C, Carmela N, Dardano A, Angela D, Balbarini A, Alberto B, Mariani M, Mario M, Pinchera A, Aldo P. Early textural and functional alterations of left ventricular myocardium in mild hypothyroidism. Eur J Endocrinol 2006; 155:3-9. [PMID: 16793943 DOI: 10.1530/eje.1.02174] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The aim of the present study was to evaluate cardiac function and texture in patients with subclinical hypothyroidism (sHT) both by conventional and new ultrasonic intramyocardial tissue techniques. sHT was characterized by normal serum free tetraiodotironine and free triiodotironine levels and slightly increased serum TSH level. Twenty-four patients affected by sHT and 24 sex- and age-matched healthy volunteers were studied. All subjects were submitted to conventional two-dimensional (2D)-color Doppler echocardiography, pulsed wave tissue Doppler imaging (PWTDI) for the analysis of the diastolic function, color Doppler myocardial imaging (CDMI) for the analysis of regional strain and strain-rate and integrated backscatter (IBS) for the evaluation of intrinsic contractility and tissue characterization. The results of the present study were: (a) the detection in sHT subjects of a lower cyclic variation index (CVI) indicating an altered myocardial intrinsic contractility; (b) a higher ultrasonic myocardial reflectivity indicating an altered myocardial texture; (c) the detection of lower systolic strain and strain-rate indicating an alteration of myocardial regional deformability; (d) an initial impairment of left ventricular diastolic function indicated by a decrease of peak E mitral flow velocity and an increase of peak A mitral flow velocity. All parameters studied with conventional 2D-echo in sHT patients were comparable with controls, except for a mild alteration in diastolic function. A significant correlation among systo-diastolic modifications detected by CDMI and IBS and serum TSH levels were found. The CVI at septum, the PWDTI S-peak wave and the systolic strain at septum were inversely related to the serum TSH levels. In conclusion, the new intramyocardial ultrasonic techniques confirm and extend the previous knowledge on the effect of the sHT on the heart, allowing the detection of early ultrastructural and regional functional systolic and diastolic abnormalities.
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Affiliation(s)
- Fabrizio Aghini-Lombardi
- Department of Endocrinology and Metabolism, University of Pisa, Via Paradisa 2, 56124 Pisa, Italy.
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Miccoli P, Minuto MN, Galleri D, D'Agostino J, Basolo F, Antonangeli L, Aghini-Lombardi F, Berti P. INCIDENTAL THYROID CARCINOMA IN A LARGE SERIES OF CONSECUTIVE PATIENTS OPERATED ON FOR BENIGN THYROID DISEASE. ANZ J Surg 2006; 76:123-6. [PMID: 16626346 DOI: 10.1111/j.1445-2197.2006.03667.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND The diagnosis of incidental thyroid carcinoma (ITC) in patients operated on for a benign disease is frequent. This study aims to determine both its clinical effect and the possibility of identifying this class of patients preoperatively. METHODS A total of 998 consecutive patients (697 women and 301 men; mean age, 49.5 years) undergoing surgery for benign thyroid pathology in a single institution were studied. The mean time between first diagnosis of thyroid disease and operation was 9.0 years (range, 0-50 years). All patients underwent at least one ultrasonography before surgery, and 678 patients underwent fine-needle aspiration cytology. Patients with undetermined cytology or follicular nodules were excluded from the study. RESULTS Histology revealed an ITC in 104 patients (10.4%): 99 had a papillary carcinoma. Mean and median diameters of ITC were 1.4 and 0.7 cm, respectively (range, 0.1-7.5 cm). In 43 patients, the tumour size was greater than 1 cm, whereas it exceeded 2 cm in 25 patients. Tumours were multicentric in 19.8% of the patients and occurred in 8.2% of patients with nodular toxic goiter, 8.7% of patients with toxic diffuse goiter and 13.8% of patients with multinodular goiter. DISCUSSION The results confirm the high frequency of ITC. ITC was more frequent in euthyroid patients than in thyrotoxic patients (P < 0.03). Sex, age, thyroid volume and interval between diagnosis and surgery did not significantly influence its incidence. The majority of ITC was represented by microcarcinomas, but in approximately 25% of patients, the tumour size was greater than 2 cm. The role played by FNAC in excluding malignancies proved to be fairly inconclusive.
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Affiliation(s)
- Paolo Miccoli
- Department of Surgery, University of Pisa, Pisa, Italy
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15
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Antonangeli L, Maccherini D, Cavaliere R, Di Giulio C, Reinhardt B, Pinchera A, Aghini-Lombardi F. Comparison of two different doses of iodide in the prevention of gestational goiter in marginal iodine deficiency: a longitudinal study. Eur J Endocrinol 2002; 147:29-34. [PMID: 12088916 DOI: 10.1530/eje.0.1470029] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE A prospective randomized trial was performed to assess the usefulness of iodine supplementation in the prevention of goiter in pregnant women living in marginally iodine-deficient areas. DESIGN Eighty-six pregnant women were recruited and randomized in two groups and treated daily for up to six months after delivery with 200 microg iodide (group A) or 50 microg iodide (group B). Sixty-seven women (32 in group A and 35 in group B) completed the study. METHODS Thyroid volume (TV), thyroid functional parameters and urinary iodine concentration were determined in all subjects at booking, at the 18th-26th, and the 29th-33rd week of gestation, and at the 3rd and 6th month after delivery. RESULTS A slight but not significant increase in TV during gestation was observed only in group B. After delivery a progressive decrease in TV was documented in both groups, the final TV being significantly reduced with respect to the initial volume in group A. No significant changes in serum free thyroid hormones and TSH concentrations were found during gestation in either group. Postpartum thyroiditis was observed in 5 women (2 in group A, 3 in group B). No side effects were seen. CONCLUSION The present data indicate that in marginally iodine-deficient areas, the administration of iodide is recommended in pregnancy and lactation. In the conditions of the present trial a dose of 50 microg iodide/day is a safe and effective measure in preventing an increase in TV during pregnancy but a dose of 200 microg iodide/day appeared to be more effective without inducing side effects and without enhancing the frequency of post-partum thyroiditis.
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Cavaliere R, Antonangeli L, Vitti P, Pinchera A, Aghini-Lombardi F. The aging thyroid in a mild to moderate iodine deficient area of Italy. J Endocrinol Invest 2002; 25:66-8. [PMID: 12508922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Affiliation(s)
- R Cavaliere
- Department of Endocrinology, University of Pisa, Pisa, Italy
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Maccherini D, Antonangeli L, Leoli F, Rago T, Vitti P, Aghini-Lombardi F. [Epidemiology of endemic goiter in Tuscany]. Ann Ist Super Sanita 1999; 34:395-7. [PMID: 10052182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
In the present study, the data of epidemiological surveys carried out in Tuscany from 1981 to 1993 in schoolchildren population (6-14 years) residing in extraurban hilly and mountain areas are reported. Mild iodine deficiency and high prevalence of goiter were documented in the epidemiological surveys carried out up to 1990. An increase in urinary iodine excretion with a dramatic decrease in goiter prevalence was documented in the more recent surveys, independently from iodine prophylaxis. The results observed in Garfagnana and in Val Tiberina after the implementation of iodized salt confirmed the necessity to promote prophylaxis programs extended to the entire population.
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Affiliation(s)
- D Maccherini
- Dipartimento di Endocrinologia e Metabolismo, Ortopedia e Traumatologia, Medicina del Lavoro, Università degli Studi, Pisa
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Aghini-Lombardi F, Antonangeli L, Vitti P. [Epidemiology of endemic goiter in Italy]. Ann Ist Super Sanita 1999; 34:311-4. [PMID: 10052167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Epidemiological surveys on goiter endemia carried out in Italy in the two last decades were recently reviewed. Iodine deficiency and endemic goiter were documented in the entire country. In recent studies, urinary iodine excretion was higher and prevalence of goiter was lower than that documented in the past, in absence of a national program of prophylaxis. Nevertheless, in a recent study carried out in Basilicata, in schoolchildren a goiter prevalence of 16% was documented. In conclusion, iodine deficiency and endemic goiter are still present in Italy; despite the beneficial effects of "silent prophylaxis", a iodine prophylaxis program is mandatory.
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Affiliation(s)
- F Aghini-Lombardi
- Dipartimento di Endocrinologia e Metabolismo, Ortopedia e Traumatologia, Medicina del Lavoro, Università degli Studi, Pisa
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Aghini-Lombardi F, Antonangeli L. [Iodine prophylaxis legislation in Italy]. Ann Ist Super Sanita 1999; 34:363-6. [PMID: 10052175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Italian laws allow production and selling of iodized salt but this is still consumed on a voluntary basis. Thus, the use of iodized salt amounts to 3% of the used salt. Selling iodized salt instead of common salt would be the most effective iodine prophylaxis method. The Consiglio Superiore di Sanità has recently voted a document which asks the authorities to make the selling of iodized salt compulsory. Selling common salt to the people who explicitly ask for it could be a good alternative to the compulsory prophylaxis. The food education campaign promoted by the Italian Ministry of Health could provide an important contribution for the success of the iodine prophylaxis.
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Affiliation(s)
- F Aghini-Lombardi
- Dipartimento di Endocrinologia e Metabolismo, Ortopedia e Traumatologia, Medicina del Lavoro, Università degli Studi, Pisa
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20
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Antonangeli L, Leoli F, Maccherini D, Aghini-Lombardi F. [Effects of iodine prophylaxis on a voluntary basis on the thyroid volume of a young population in Val Tiberina]. Ann Ist Super Sanita 1999; 34:399-402. [PMID: 10052183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
In the present study, the thyroid volume of children residing in an area (Val Tiberina in Tuscany) characterized by moderate iodine deficiency in the past, was evaluated after iodized salt prophylaxis. In children born before the institution of iodine prophylaxis, thyroid volume was significantly higher than that in controls, both considering the entire population and only the nongoitrous children. In children born after iodine prophylaxis, no difference in thyroid volume was found with respect to controls. The data of the present study indicate that the exposure to iodine deficiency causes an enlargement of thyroid volume in schoolchildren. The iodized salt prophylaxis is able to prevent the development of goiter in the children born after prophylaxis and to keep the further increase of thyroid volume in older children.
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Affiliation(s)
- L Antonangeli
- Dipartimento di Endocrinologia e Metabolismo, Ortopedia e Traumatologia, Medicina del Lavoro, Università degli Studi, Pisa
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Aghini-Lombardi F, Antonangeli L, Martino E, Vitti P, Maccherini D, Leoli F, Rago T, Grasso L, Valeriano R, Balestrieri A, Pinchera A. The spectrum of thyroid disorders in an iodine-deficient community: the Pescopagano survey. J Clin Endocrinol Metab 1999; 84:561-6. [PMID: 10022416 DOI: 10.1210/jcem.84.2.5508] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We carefully assessed thyroid status and goiter by ultrasound in 1411 subjects virtually representing the entire resident population of Pescopagano, an iodine-deficient village of Southern Italy. Median urinary iodine excretion was 55 microg/L. The prevalence of goiter was 16.0% in children and 59.8% in adults. Thyroid nodularity was 0.5% in children and progressively increased with age to 28.5% in the 56- to 65-yr-old group. The prevalence of present or past hyperthyroidism was 2.9%, including 9 cases with toxic diffuse goiter and 20 with toxic nodular goiter. Functional autonomy was rare in children, progressively increased with age up to 15.4% in the elderly, and was related to nodular goiter. The prevalences of overt and subclinical hypothyroidism in the adults were 0.2% and 3.8%, respectively. Serum autoantibodies to thyroglobulin and thyroperoxidase were detected in 12.6% of the entire population. The prevalence of diffuse autoimmune thyroiditis was 3.5%, being very low in children. Thyroid cancer was found in only 1 case. In conclusion, in the present survey of an iodine-deficient community, a progressive increase with age of goiter prevalence, thyroid nodularity, and functional autonomy was observed. Hyperthyroidism was twice as high as that reported in iodine-sufficient areas, mainly due to an increased frequency of toxic nodular goiter. Although low titer serum thyroid antibodies were relatively frequent, the prevalences of both overt and subclinical autoimmune hypothyroidism were not different from those observed in iodine-sufficient areas.
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Aghini-Lombardi F, Antonangeli L, Pinchera A, Leoli F, Rago T, Bartolomei AM, Vitti P. Effect of iodized salt on thyroid volume of children living in an area previously characterized by moderate iodine deficiency. J Clin Endocrinol Metab 1997; 82:1136-9. [PMID: 9100585 DOI: 10.1210/jcem.82.4.3867] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
It is well established that an adequate iodine intake prevents iodine deficiency disorders. Prophylaxis through iodized salt is able to correct urinary iodine deficiency and to prevent goiter endemia, but scanty data are available about its effect on decreasing the thyroid size in goitrous children born before prophylaxis. The prevalence of goiter was evaluated by ultrasound in the school-children population of an area of Eastern Tuscany (Tiberina Valley) characterized by moderate iodine deficiency in 1985. At present, after the implementation of voluntary iodized salt consumption, iodine urinary excretion was borderline sufficient (median, 98 micrograms/L). Goiter prevalence was higher at ultrasound (17%) than by palpation (10%). The median thyroid volume ranged from 3.1 mL in 7-yr-old children to 9.2 mL in 14-yr-old children. In the 7-10 yr age class (i.e. in children born after iodine prophylaxis), no statistical difference in thyroid volume was found with respect to controls. In older children (11-14 yr) born before the institution of iodine prophylaxis, the median thyroid volume was significantly higher than that in age-matched controls. Moreover, in this cluster of subjects, the median thyroid volume in nongoitrous children was higher than that in controls. In conclusion, the data of the present study indicate that the iodized salt prophylaxis is able to prevent the development of goiter in children born after the implementation of iodized salt consumption and to further control thyroid enlargement in older children, but is less effective (or rapid) in reducing goiter size in children exposed to iodine deficiency in the first years of life.
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Pinchera A, Aghini-Lombardi F, Antonangeli L, Vitti P. [Multinodular goiter. Epidemiology and prevention]. Ann Ital Chir 1996; 67:317-25. [PMID: 9019982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Nodular goiter is the natural evolution of nontoxic goiter, that may be endemic, sporadic or familiar. Iodine deficiency is the cause of endemic goiter, while genetical defects, impairing the thyroid hormone biosynthetic efficiency or altering the number and/or activity of growth factor receptors, play the major role in the pathogenesis of sporadic and familiar nontoxic goiter. The prevalence of nodular goiter is directly related to the degree of iodine deficiency that is still present in several areas of the world. In iodine deficient areas such as some Italian regions, nodular goiter is present in 25-33% of the population, its frequency increasing with age. In iodine sufficient areas the prevalence of nodular goiter is comprised between 0.4 and 7.2% high in iodine deficient areas and about 4% in iodine sufficient countries, its frequency increasing with the age. Dysphagia, dyspnea and coarsening of the voice may occur for esophagous, tracheal or laryngeal nerve compression, respectively. Iodine deficiency has little if any effect on the frequency of thyroid carcinoma, while, with regard to the histological pattern, it leads to an increased ratio papillary/follicular. Thyroid function is normal in uncomplicated nontoxic goiter. However, the evolution of nodular goiter is toward the functional autonomy of nodules that may result in thyrotoxicosis. Hypothyroidism is rare and is usually the result of thyroid autoimmunity. All the cases due to iodine deficiency can be prevented by an adequate iodine prophylaxis that can be accomplished in industrialized countries by the use of sale enriched in iodine.
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Affiliation(s)
- A Pinchera
- Istituto di Endocrinologia, Università degli Studi di Pisa
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Aghini Lombardi FA, Pinchera A, Antonangeli L, Rago T, Chiovato L, Bargagna S, Bertucelli B, Ferretti G, Sbrana B, Marcheschi M. Mild iodine deficiency during fetal/neonatal life and neuropsychological impairment in Tuscany. J Endocrinol Invest 1995; 18:57-62. [PMID: 7759786 DOI: 10.1007/bf03349700] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The neuropsychological performance of schoolchildren living in areas with present and past iodine deficiency in Tuscany was investigated. Children were submitted to: a) block design subtest of the Wechsler Intelligence Scale for Children-Revised (WISC-R) and a modified version of the WISC-R coding subtest which evaluate the general neuropsychological and cognitive performance, independently from familial cultural background; b) simple reaction time (RT) session which evaluates the efficiency of the whole information processing and nervous transmission mechanisms. Neuropsychological performance was tested in 107 children living in Borgo a Mozzano, an area of mild iodine deficiency (IDA) with a median urinary iodine excretion (UIE) of 64 micrograms/L (mean +/- SD: 80.1 +/- 57). One hundred and six sex and age-matched children living in Marina di Pisa, an iodine sufficient coastal village of Tuscany (ISA) with a median UIE of 142 micrograms/L (mean +/- SD: 173 +/- 95) were used as controls. Tests for neuropsychological performance were performed in 57 children living in the village of Vagli, an area with past iodine deficiency (PIDA): 30 children born before iodine prophylaxis (Group 1), when the median UIE was 32 micrograms/L (mean +/- SD: 47 +/- 22), 27 children born after the institution of iodine prophylaxis (Group 2), when the median UIE was 109 micrograms/L (mean +/- SD: 130 +/- 73). Sex and age-matched ISA-children were used as controls for each group. RTs were significantly delayed (p < 0.05) in IDA than in ISA children, while block design and coding subtests showed no significant difference.(ABSTRACT TRUNCATED AT 250 WORDS)
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Vitti P, Martino E, Aghini-Lombardi F, Rago T, Antonangeli L, Maccherini D, Nanni P, Loviselli A, Balestrieri A, Araneo G. Thyroid volume measurement by ultrasound in children as a tool for the assessment of mild iodine deficiency. J Clin Endocrinol Metab 1994; 79:600-3. [PMID: 8045982 DOI: 10.1210/jcem.79.2.8045982] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Thyroid ultrasound was used to measure thyroid volume in children and compared with thyroid palpation for the assessment of the prevalence of goiter in an area of mild iodine deficiency. School children, 6-14 yr old, were from control areas (n = 2693; urinary iodine excretion, 110 micrograms/L) or from an area of mild iodine deficiency (IDA; n = 278; urinary iodine excretion, 72 micrograms/L). Thyroid volume determined by ultrasound in control children increased with age (r = 0.62; P < 0.0001) and was significantly correlated with height (r = 0.51; P < 0.0001) and body weight (r = 0.126; P < 0.0001). Both median and mean thyroid volumes were greater in IDA children than in controls. The prevalence of goiter determined by ultrasound was 68 of 268 children (25.3%) in IDA and 105 of 2693 children (3.9%) in the control area (chi 2 = 204; P < 0.0001). Thyroid enlargement, as assessed by palpation, was found in 59 of 268 children (22%) in the IDA group and in 165 of 2693 (6.1%) subjects in the control area (chi 2 = 88; P < 0.0001). Some subjects of the IDA who were judged goitrous by palpation (11.2%) had a normal thyroid volume at ultrasound, and 12.7% of subjects with an abnormal thyroid volume at ultrasound were judged nongoitrous by palpation. In conclusion, 1) thyroid volume in children, as assessed by ultrasound, increases with age and is closely related to the parameters of body growth; 2) in every age group, thyroid ultrasound shows greater thyroid volume in an IDA group than in controls; and 3) a discrepancy between palpation and ultrasound is found in 23.9% of children living in an IDA, confirming that palpation is relatively inaccurate for assessing the prevalence of goiter in mild iodine deficiency. These data indicate that thyroid volume measurement by ultrasound in children provides a useful tool for the assessment of goiter in mild iodine deficiency.
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Affiliation(s)
- P Vitti
- Istituto di Endocrinologia, University of Pisa, Italy
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Aghini-Lombardi F, Pinchera A, Antonangeli L, Rago T, Fenzi GF, Nanni P, Vitti P. Iodized salt prophylaxis of endemic goiter: an experience in Toscana (Italy). Acta Endocrinol (Copenh) 1993; 129:497-500. [PMID: 8109181 DOI: 10.1530/acta.0.1290497] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
It is well established that iodine supplementation is effective in correcting iodine deficiency and reducing goiter prevalence. In Italy, legislation has allowed the production of iodized salt since 1972, but its consumption is on a voluntary basis. In the present study, the efficacy of legislative measures that made compulsory the availability of iodized salt in foodstores has been evaluated. Urinary iodine excretion and thyroid size, scored according to Pan American Health Organization recommendations, were determined prior to (1981) and 10 years after (1991) the introduction of legislative measures in the whole schoolchildren population residing in a restricted area of the Tuscan Appennines. Moreover, in 1991, thyroid volume was determined by ultrasonography. In 1981, mean urinary iodine excretion was 47.1 +/- 22.4 mg/kg creatinine (0.412 mumol/l) and goiter prevalence was 60%, indicating a moderate iodine deficiency. Eighty of the families subsequently used iodized salt on a regular basis; as a result of this excellent compliance, in 1991 the mean urinary iodine excretion increased to 129.7 +/- 73 mg/kg creatinine (1.24 mumol/l) and goiter prevalence dropped to 8.1%. The results of this study underline the effectiveness of iodine prophylaxis in correcting iodine deficiency and abating endemic goiter in schoolchildren, and suggest that implementation of measures that make compulsory the availability of iodized salt in foodstores overcomes the fact that there is no law governing the exclusive production and trading of iodized salt.
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Macchia E, Falcone M, Giorgilli G, Bogazzi F, Antonangeli L, Baccarini S, Fontanini G, Torresani J, DeGroot LJ, Pinchera A. Site-specific anti-c-erb A antibodies recognizing native thyroid hormone receptors: their use to detect the expression and localization of alpha and beta c-erb A proteins in rat liver. J Recept Res 1992; 12:201-15. [PMID: 1316439 DOI: 10.3109/10799899209074792] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The cell-specific expression and tissue distribution of c-erbA proteins alpha and beta is still unknown. To address this problem, we prepared anti-peptide antibodies directed against epitopes of human (h) c-erbA, specific for the alpha or beta form of thyroid hormone receptors. The cDNAs coding for h c-erbA beta 1, alpha 1 and alpha 2 were transcribed and the mRNAs were translated in vitro in the presence of 35S-methionine, and then their reactivity with the antisera was evaluated. The antiserum anti-beta 62-81 immunoprecipitated only the beta 1 receptor. The antiserum anti-alpha 144-162 determined precipitation of both alpha 1 and alpha 2 proteins but not of the beta 1 receptor. Anti-alpha 2 431-451 produced a selective precipitation of alpha 2, and had no effect on alpha 1 or beta 1 receptor. In order to study the interaction of the antibodies with native T3 receptor we evaluated the binding of antibodies to rat liver T3 receptors by Sephacryl S300 chromatography: both antisera anti-beta 62-81 and anti-alpha 144-162 caused a partial shift of the labeled T3-receptor complex to a higher molecular form, while the antibody directed against c-erbA alpha 2 did not produce any significant shift. The anti-peptide antibodies were then immunopurified by affinity chromatography and used to immunolocalize the different forms of c-erb A proteins in adult and fetal rat liver, by a sensitive immunohistochemical technique. All 3 antibodies stained mainly the nuclei of the majority of adult liver cells. No staining was detectable when the original antiserum was deprived of anti-peptide antibodies by running through the affinity columns or when the antibodies were pre-absorbed with the homologous peptide. No significant staining was present in the liver from rat fetus.
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Affiliation(s)
- E Macchia
- Istituto di Endocrinologia, Università di Pisa
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Bartalena L, Pellegrini L, Meschi M, Antonangeli L, Bogazzi F, Dell'Osso L, Pinchera A, Placidi GF. Evaluation of thyroid function in patients with rapid-cycling and non-rapid-cycling bipolar disorder. Psychiatry Res 1990; 34:13-7. [PMID: 2125129 DOI: 10.1016/0165-1781(90)90054-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The problem of whether rapid-cycling (RC) bipolar disorder is more frequently associated than non-rapid-cycling (NRC) bipolar disorders with thyroid dysfunction was investigated in two groups of 11 women matched for age and therapy. Seven patients in each group were under chronic lithium therapy. Both RC and NRC patients, as compared to euthyroid controls, showed a reduction in mean total and free thyroid hormone concentrations, subnormal values of free thyroxine being found in four RC and three NRC patients. No patient had supranormal baseline thyroid stimulating hormone (TSH) values, but an exaggerated TSH response to thyrotropin releasing hormone was found in three RC and two NRC patients: all these patients had been receiving lithium therapy for more than one year. No differences in the prevalence of goiter and thyroid-directed autoantibodies were observed in the two groups. These data confirm that bipolar disorder, especially during treatment with lithium, is associated with at least subclinical hypothyroidism, and suggest that RC patients do not differ from NRC patients in the prevalence of spontaneous or lithium-induced thyroid hypofunction. Lithium-induced hypothyroidism is likely to be related to the length of treatment.
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Affiliation(s)
- L Bartalena
- Istituto di Endocrinologia, University of Pisa, Italy
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Bartalena L, Pacchiarotti A, Palla R, Antonangeli L, Mammoli C, Monzani F, De Negri F, Panichi V, Martino E, Baschieri L. Lack of nocturnal serum thyrotropin (TSH) surge in patients with chronic renal failure undergoing regular maintenance hemofiltration: a case of central hypothyroidism. Clin Nephrol 1990; 34:30-4. [PMID: 2387100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Thyrotropin (TSH) secretion was evaluated in a group of patients with chronic renal failure (CRF) undergoing regular maintenance hemofiltration and in normal controls. The study group included 68 patients (39 males and 29 females, age range 39-73 years, mean: 53 years). In all patients blood was drawn at 08:30-09:00 h; in 20 patients the nocturnal (24:00-02:00 h) serum TSH peak was also evaluated; 12 patients underwent stimulation test with synthetic TSH-releasing hormone (TRH). TSH was measured by an ultrasensitive immunoradiometric assay. CRF patients showed a significant decrease in serum total and free thyroxine and triiodothyronine concentrations, which in a substantial proportion of subjects were below the lower normal limit. Serum reverse triiodothyronine and thyroxine-binding globulin values did not differ in the two groups. Despite this trend of thyroid hormones to decrease, no patient had supranormal TSH values as in primary hypothyroidism. While the mean morning TSH concentrations of CRF patients did not differ from those of controls, the mean nocturnal values were significantly reduced in CRF (1.0 +/- 0.2 vs 3.2 +/- 0.4 mU/l, p less than 0.0005) and the nocturnal serum TSH surge was not observed in 18 of the 20 patients (90%) in whom it was evaluated. The mean serum TSH peak value after TSH-releasing hormone (TRH) administration was also reduced in CRF patients, and the TSH response to TRH was blunted in 3 out of 12 patients (25%). The results of this study demonstrate a major impairment of TSH secretion in CRF, which baseline TSH measurements in the morning and the evaluation of the TSH response to TRH may not reveal.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- L Bartalena
- Istituto di Endocrinologia, University of Pisa, Italy
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