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1. Diagnosis, treatment, and management of rickets: a position statement from the Bone and Mineral Metabolism Group of the Italian Society of Pediatric Endocrinology and Diabetology

Author

Giampiero I. Baroncelli, Pasquale Comberiati, Tommaso Aversa, Federico Baronio, Alessandra Cassio, Mariangela Chiarito, Mirna Cosci o di Coscio, Luisa De Sanctis, Natascia Di Iorgi, Maria Felicia Faienza, Danilo Fintini, Roberto Franceschi, Mila Kalapurackal, Silvia Longhi, Michela Mariani, Marco Pitea, Andrea Secco, Daniele Tessaris, Francesco Vierucci, Malgorzata Wasniewska, Giovanna Weber, and Stefano Mora

Subjects
hereditary rickets, management, non-hereditary rickets, nutritional rickets, treatment, Diseases of the endocrine glands. Clinical endocrinology, RC648-665
Abstract

Rickets results from impaired mineralization of growing bone due to alterations in calcium and phosphate homeostasis. Clinical signs of rickets are related to the age of the patient, the duration of the disease, and the underlying disorder. The most common signs of rickets are swelling of the wrists, knees or ankles, bowing of the legs (knock-knees, outward bowing, or both) and inability to walk. However, clinical features alone cannot differentiate between the various forms of rickets. Rickets includes a heterogeneous group of acquired and inherited diseases. Nutritional rickets is due to a deficiency of vitamin D, dietary calcium or phosphate. Mutations in genes responsible for vitamin D metabolism or function, the production or breakdown of fibroblast growth factor 23, renal phosphate regulation, or bone mineralization can lead to the hereditary form of rickets. This position paper reviews the relevant literature and presents the expertise of the Bone and Mineral Metabolism Group of the Italian Society of Pediatric Endocrinology and Diabetology (SIEDP). The aim of this document is to provide practical guidance to specialists and healthcare professionals on the main criteria for diagnosis, treatment, and management of patients with rickets. The various forms of rickets are discussed, and detailed references for the discussion of each form are provided. Algorithms to guide the diagnostic approach and recommendations to manage patients with rare forms of hereditary rickets are proposed.

Published
2024
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2. Tissue sensitivity to thyroid hormones may change over time

Author

Giorgio Radetti, Franco Rigon, Alessandro Salvatoni, Irene Campi, Tiziana De Filippis, Valentina Cirello, Silvia Longhi, Fabiana Guizzardi, Marco Bonomi, and Luca Persani

Subjects
resistance to thyroid hormones, hyperthyroidism, hypothyroidism, refetoff syndrome, Diseases of the endocrine glands. Clinical endocrinology, RC648-665
Abstract

Introduction: Patients with congenital hypothyroidism (CH) may transiently show a certain degree of pituitary resistance to levothyroxine (LT4) which, however, normalizes subsequently. However, in some individuals, thyroid-stimulating hormone (TSH) fails to normalize despite adequate LT4 treatment. Methods: Nine patients with CH followed in three Academic Centre who developed over time resistance to thyroid hormones underwent extensive biochemical and genetic analyses. These latter were performed by Sanger sequence or targeted next-generation sequencing technique including a panel of candidate genes involved in thyroid hormone actions and congenital hypothyroidism (CH): THRA, THRB, DIO1, DIO2, SLC16A2, SECISBP2, DUOX2, DUOXA2, FOXE1, GLIS3, IYD, JAG1, NKX2-1, NKX2-5, PAX8, SLC26A4, SLC5A5, TG, TPO, TSHR. Results: All patients displayed a normal sensitivity to thyroid hormone (TH) in the first years of life but developed variable degrees of resistance to LT4 treatment at later stages. In all cases, TSH normalized only in the presence of high free thyroxine levels. Tri-iodothyronine suppression test followed by thyrotrophin-releasing hormone stimulation was performed in two cases and was compatible with central resistance to THs. This biochemical feature was present independently on the cause of CH, being observed either in patients with an ectopic (n = 2) or eutopic gland (n = 3) or in case of athyreosis (n = 1). None of the patients had genetic variants in genes involve d in the regulation of TH actions, while in two cases, we found two double heterozygous missense variants in TSHR and GLIS3 or in DUOX2 and SLC26A4 genes, respectively. Conclusions: We report CH patients who showed an acquired and unexplainable pituitary refractoriness to TH action.

Published
2023
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3. New methodology for estimating the burden of infectious diseases in Europe.

Author

Mirjam Kretzschmar, Marie-Josée J Mangen, Paulo Pinheiro, Beate Jahn, Eric M Fèvre, Silvia Longhi, Taavi Lai, Arie H Havelaar, Claudia Stein, Alessandro Cassini, Piotr Kramarz, and BCoDE consortium

Subjects
Medicine
Abstract

Mirjam Kretzschmar and colleagues describe the BCoDE project, which uses a pathogen-based incidence approach to better estimate the infectious disease burden in Europe.

Published
2012
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6. Parameters of Glucose Homeostasis in the Recognition of the Metabolic Syndrome in Young Adults with Prader–Willi Syndrome

Author

Graziano Grugni, Silvia Longhi, Giorgio Radetti, Antonio Fanolla, Alessandro Sartorio, Antonella Saezza, and Fiorenzo Lupi

Subjects
medicine.medical_specialty, obesity, Prader–Willi syndrome, Prader���Willi syndrome, 1 h post���load glucose, 2 h post���load glucose, metabolic syndrome, HOMA���IR, ODI, IGI, 2 h post-load glucose, Article, HOMA-IR, 1 h post-load glucose, Insulin resistance, Internal medicine, medicine, Glucose homeostasis, Young adult, Oral glucose tolerance, Adult patients, business.industry, nutritional and metabolic diseases, General Medicine, medicine.disease, Obesity, Endocrinology, Medicine, Metabolic syndrome, 1 h post‐load glucose, 2 h post‐load glucose, HOMA‐IR, business, Body mass index
Abstract

To verify the accuracy of different indices of glucose homeostasis in recognizing the metabolic syndrome in a group of adult patients with Prader–Willi syndrome (PWS), 102 PWS patients (53 females/49 males), age ±SD 26.9 ± 7.6 yrs, Body Mass Index (BMI) 35.7 ± 10.7, were studied. The following indices were assessed in each subject during an oral glucose tolerance test (OGTT): 1 h (>155 mg/dL) and 2 h (140–199 mg/dL) glucose levels, the oral disposition index (ODI), the insulinogenic index (IGI), the insulin resistance (HOMA‐IR) were evaluated at baseline, 1 h and 2 h. Although minor differences among indices were found, according to the ROC analysis, no index performed better in recognizing MetS. Furthermore, the diagnostic threshold levels changed over the years and therefore the age‐related thresholds were calculated. The easily calculated HOMA‐IR at baseline may be used to accurately diagnose MetS, thus avoiding more complicated procedures.

Published
2021

7. Differences between Transient Neonatal Diabetes Mellitus Subtypes can Guide Diagnosis and Therapy

Author

Riccardo Bonfanti, Dario Iafusco, Ivana Rabbone, Giacomo Diedenhofen, Carla Bizzarri, Patrizia Ippolita Patera, Petra Reinstadler, Francesco Costantino, Valeria Calcaterra, Lorenzo Iughetti, Silvia Savastio, Anna Favia, Francesca Cardella, Donatella Lo Presti, Ylenia Girtler, Sarah Rabbiosi, Giuseppe D’Annunzio, Angela Zanfardino, Alessia Piscopo, Francesca Casaburo, Letizia Pintomalli, Lucia Russo, Valeria Grasso, Nicola Minuto, Mafalda Mucciolo, Antonio Novelli, Antonella Marucci, Barbara Piccini, Sonia Toni, Francesca Silvestri, Paola Carrera, Andrea Rigamonti, Giulio Frontino, Michela Trada, Davide Tinti, Maurizio Delvecchio, Novella Rapini, Riccardo Schiaffini, Corrado Mammì, Fabrizio Barbetti, Monica Aloe, Simona Amadeo, Claudia Arnaldi, Marta Bassi, Luciano Beccaria, Marzia Benelli, Giulia Maria Berioloi, Enrica Bertelli, Martina Biagioni, Adriana Bobbio, Stefano Boccato, Oriana Bologna, Franco Bontempi, Clara Bonura, Giulia Bracciolini, Claudia Brufani, Patrizia Bruzzi, Pietro Buono, Roberta Cardani, Giuliana Cardinale, Alberto Casertano, Maria Cristina Castiglione, Vittoria Cauvin, Valentino Cherubini, Franco Chiarelli, Giovanni Chiari, Stefano Cianfarani, Dante Cirillo, Felice Citriniti, Susanna Coccioli, Anna Cogliardi, Santino Confetto, Giovanna Contreas, Anna Corò, Elisa Corsini, Nicoletta Cresta, Fiorella De Berardinis, Valeria De Donno, Giampaolo De Filippo, Rosaria De Marco, Annalisa Deodati, Elena Faleschini, Valentina Fattorusso, Valeria Favalli, Barbara Felappi, Lucia Ferrito, Graziella Fichera, Franco Fontana, Elena Fornari, Roberto Franceschi, Francesca Franco, Adriana Franzese, Anna Paola Frongia, Alberto Gaiero, Francesco Gallo, Luigi Gargantini, Elisa Giani, Chiara Giorgetti, Giulia Bianchi, Vanna Graziani, Antonella Gualtieri, Monica Guasti, Gennaro Iannicelli, Antonio Iannilli, Ignaccolo Giovanna, Dario Ingletto, Stefania Innaurato, Elena Inzaghi, Brunella Iovane, Peter Kaufmann, Alfonso La Loggia, Rosa Lapolla, Anna Lasagni, Nicola Lazzaro, Lorenzo Lenzi, Riccardo Lera, Gabriella Levantini, Fortunato Lombardo, Antonella Lonero, Silvia Longhi, Sonia Lucchesi, Lucia Paola Guerraggio, Sergio Lucieri, Patrizia Macellaro, Claudio Maffeis, Bendetta Mainetti, Giulio Maltoni, Chiara Mameli, Francesco Mammì, Maria Luisa Manca-Bitti, Melania Manco, Monica Marino, Matteo Mariano, Marco Marigliano, Alberto Marsciani, Costanzo Mastrangelo, Maria Cristina Matteoli, Elena Mazzali, Franco Meschi, Antonella MIgliaccio, Anita Morandi, Gianfranco Morganti, Enza Mozzillo, Gianluca Musolino, Rosa Nugnes, Federica Ortolani, Daniela Pardi, Filomena Pascarella, Stefano Passanisi, Annalisa Pedini, Cristina Pennati, Angelo Perrotta, Sonia Peruzzi, Paola Peverelli, Giulia Pezzino, Anita Claudia Piona, Gavina Piredda, Carmelo Pistone, Elena Prandi, Barbara Pedieri, Procolo Di Bonito, Anna Pulcina, Maria Quinci, Emioli Randazzo, Rossella Ricciardi, Carlo Ripoli, Rosanna Roppolo, Irene Rutigliano, Alberto Sabbio, Silvana salardi, Alessandro Salvatoni, Anna Saporiti, Rita Sardi, Mariapiera Scanu, Andrea Scaramuzza, Eleonardo Schiven, Andrea Secco, Linda Sessa, Paola Sogno Valin, Silvia Sordelli, Luisa Spallino, Stefano Stagi, Filomena Stamati, Tosca Suprani, Valentina Talarico, Tiziana Timapanaro, Antonella Tirendi, Letizia Tomaselli, Gianluca Tornese, Adolfo Andrea Trettene, Stefano Tumini, Giuliana Valerio, Claudia Ventrici, Matteo Viscardi, Silvana Zaffani, Maria Zampolli, Giorgio Zanette, Clara Zecchino, Maria Antonietta Zedda, Silvia Zonca, Stefano Zucchini, Bonfanti, R., Iafusco, D., Rabbone, I., Diedenhofen, G., Bizzarri, C., Patera, P. I., Reinstadler, P., Costantino, F., Calcaterra, V., Iughetti, L., Savastio, S., Favia, A., Cardella, F., Presti, D. L., Girtler, Y., Rabbiosi, S., D'Annunzio, G., Zanfardino, A., Piscopo, A., Casaburo, F., Pintomalli, L., Russo, L., Grasso, V., Minuto, N., Mucciolo, M., Novelli, A., Marucci, A., Piccini, B., Toni, S., Silvestri, F., Carrera, P., Rigamonti, A., Frontino, G., Trada, M., Tinti, D., Delvecchio, M., Rapini, N., Schiaffini, R., Mammi, C., and Barbetti, F.

Subjects
Proband, Male, Pediatrics, Potassium Channels, Endocrinology, Diabetes and Metabolism, Datasets as Topic, Diagnosis, Differential, Diagnostic Techniques, Endocrine, Female, Humans, Infant, Infant, Newborn, Italy, Mutation, Potassium Channels, Inwardly Rectifying, Remission Induction, Retrospective Studies, Sulfonylurea Receptors, Diabetes Mellitus, Infant, Newborn, Diseases, Diseases, Gastroenterology, Diabetes mellitus genetics, Endocrinology, Settore MED/13, Retrospective Studie, Diagnosis, Medicine, Endocrine pancreas, Transient Neonatal Diabetes Mellitus, 6q24 TNDM, KATP TNDM, Sulfonylureas, Sulfonylureas, Sulfonylurea Receptor, biology, Diabetes Mellitu, General Medicine, Metformin, Inwardly Rectifying, Settore MED/03, 6q24 TNDM, medicine.symptom, Endocrine, hormones, hormone substitutes, and hormone antagonists, medicine.drug, Human, endocrine system, medicine.medical_specialty, KATP TNDM, ABCC8, Transient Neonatal Diabetes Mellitus, Internal medicine, Diabetes mellitus, Macroglossia, Endocrine pancreas, business.industry, medicine.disease, Newborn, Diagnostic Techniques, Transient neonatal diabetes mellitus, Differential, biology.protein, Sulfonylurea receptor, business
Abstract

Objective Transient neonatal diabetes mellitus (TNDM) is caused by activating mutations in ABCC8 and KCNJ11 genes (KATP/TNDM) or by chromosome 6q24 abnormalities (6q24/TNDM). We wanted to assess whether these different genetic aetiologies result in distinct clinical features. Design Retrospective analysis of the Italian data set of patients with TNDM. Methods Clinical features and treatment of 22 KATP/TNDM patients and 12 6q24/TNDM patients were compared. Results Fourteen KATP/TNDM probands had a carrier parent with abnormal glucose values, four patients with 6q24 showed macroglossia and/or umbilical hernia. Median age at diabetes onset and birth weight were lower in patients with 6q24 (1 week; −2.27 SD) than those with KATP mutations (4.0 weeks; −1.04 SD) (P = 0.009 and P = 0.007, respectively). Median time to remission was longer in KATP/TNDM than 6q24/TNDM (21.5 weeks vs 12 weeks) (P = 0.002). Two KATP/TNDM patients entered diabetes remission without pharmacological therapy. A proband with the ABCC8/L225P variant previously associated with permanent neonatal diabetes entered 7-year long remission after 1 year of sulfonylurea therapy. Seven diabetic individuals with KATP mutations were successfully treated with sulfonylurea monotherapy; four cases with relapsing 6q24/TNDM were treated with insulin, metformin or combination therapy. Conclusions If TNDM is suspected, KATP genes should be analyzed first with the exception of patients with macroglossia and/or umbilical hernia. Remission of diabetes without pharmacological therapy should not preclude genetic analysis. Early treatment with sulfonylurea may induce long-lasting remission of diabetes in patients with KATP mutations associated with PNDM. Adult patients carrying KATP/TNDM mutations respond favourably to sulfonylurea monotherapy.

Published
2021

8. The influence of gh treatment on glucose homeostasis in girls with turner syndrome: A 7-year study

Author

Ylenia Girtler, Antonio Fanolla, Federica Tamburrino, Silvia Longhi, Laura Mazzanti, Federico Baronio, Giorgio Radetti, Fiorenzo Lupi, Baronio, Federico, Mazzanti, Laura, Girtler, Ylenia, Tamburrino, Federica, Lupi, Fiorenzo, Longhi, Silvia, Fanolla, Antonio, and Radetti, Giorgio

Subjects
Blood Glucose, medicine.medical_specialty, Adolescent, medicine.medical_treatment, Endocrinology, Diabetes and Metabolism, Clinical Biochemistry, Turner Syndrome, 030209 endocrinology & metabolism, Context (language use), 030204 cardiovascular system & hematology, Biochemistry, 03 medical and health sciences, 0302 clinical medicine, Insulin resistance, Endocrinology, Insulin-Secreting Cells, Internal medicine, Turner syndrome, medicine, Homeostasis, Humans, Insulin, Glucose homeostasis, Longitudinal Studies, Insulin-Like Growth Factor I, Child, Retrospective Studies, Glucose tolerance test, medicine.diagnostic_test, business.industry, Biochemistry (medical), Glucose Tolerance Test, medicine.disease, Somatropin, Growth Hormone, Female, Insulin Resistance, Beta cell, business
Abstract

Context: Growth hormone (GH) influences glucose homeostasis mainly by negatively affecting insulin sensitivity. Objective: To longitudinally study insulin sensitivity [via homeostasis model assessment of insulin sensitivity (HOMA-S)], insulin secretion [insulinogenic index (IGI)], and capacity of b cells to adapt to changes in insulin sensitivity [oral disposition index (ODI)] in girls with Turner syndrome (TS) undergoing GH treatment. Design and Setting: Longitudinal, retrospective, 7-year study conducted in a tertiary pediatric endocrine unit and university pediatric clinic. Patients and Methods:We studied 104 patientswith TS (mean age6standard deviation, 9.163.4 years) for a median of 7.2 years. Intervention: Every year, the children underwent an oral glucose tolerance test, which was used to calculate HOMA-S, IGI, and ODI. Results: HOMA-S, IGI, and ODI did not significantly change. Conclusion: The results are reassuring, showing no negative influence of GH treatment on insulin sensitivity and on b-cell secretory capacity in girlswith TS.

Published
2017

9. The effect of two different GH dosages on final height and bone geometry

Author

Mauro Bozzola, Giorgio Radetti, Fiorenzo Lupi, Giovanni Farello, and Silvia Longhi

Subjects
0301 basic medicine, Male, medicine.medical_specialty, Bone geometry, Children, Final height, GH dosage, GH treatment, Body Height, Bone Density, Child, Female, Human Growth Hormone, Humans, Italy, Treatment Outcome, Pediatrics, Perinatology and Child Health, Bone density, Medullary cavity, Dose, Body height, 030209 endocrinology & metabolism, Growth hormone, Pediatrics, 03 medical and health sciences, 0302 clinical medicine, Metacarpal index, Internal medicine, medicine, business.industry, Research, Perinatology and Child Health, 030104 developmental biology, Endocrinology, business
Abstract

Background Growth hormone (GH) has a strong positive influence on bone, stimulating both bone elongation and increase in size. The aim of the study was to compare the effect of two different GH dosages on final height and bone geometry in two groups of GH-deficient children. Methods We evaluated 121 children (86 m, 35f). Group 1 (77 patients) treated with GH at a mean dose of 0.16 mg/kg/week and group 2 (44 patients) at 0.3 mg/kg/week. Bone geometry was evaluated at final height from a digitalized X-ray of the left hand considering the following parameters: metacarpal index (MI), cross-sectional area (CSA), cortical area (CA) and medullary area (MA). Results At baseline, group 2 was shorter than group 1 (−1.54 vs −1.01 SDS; p

Published
2016

10. Italy: Health System Review

Author

Ferre', Francesca, Antonio Giulio de Belvis, Luca, Valeria, Silvia, Longhi, Agnese, Lazzari, Giovanni, Fattore, Walter, Ricciardi, and Anna, Maresso

Subjects
Cross-Cultural Comparison, Male, Geography, Health Personnel, Delivery of Health Care, European Union, Female, Financing, Government, Health Care Reform, Health Expenditures, Health Resources, Humans, Italy, Life Expectancy, Pharmaceutical Preparations, Sex Distribution, State Medicine, Universal Coverage, Government, Financing
Published
2014

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