15 results on '"Fiorenzo Lupi"'
Search Results
2. Newborn Screening for Biotinidase Deficiency. The Experience of a Regional Center in Italy
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Alice Maguolo, Giulia Rodella, Alice Dianin, Irene Monge, Martina Messina, Erika Rigotti, Francesca Pellegrini, Grazia Molinaro, Fiorenzo Lupi, Andrea Pasini, Natascia Campostrini, Florina Ion Popa, Francesca Teofoli, Monica Vincenzi, Marta Camilot, Giorgio Piacentini, and Andrea Bordugo
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biotinidase enzymatic activity ,genotype-phenotype correlation analysis ,biotinidase deficiency incidence ,biotinidase deficiency ,newborn screening ,biotinidase deficiency disorder gene ,Pediatrics ,RJ1-570 - Abstract
Introduction: Biotinidase deficiency (BD) is an autosomal recessive disease causing a defect in the biotin-releasing enzyme. Newborn screening (NBS) allows early diagnosis and treatment, ensuring excellent prognosis. The aim of this study was to describe our experience in the diagnosis, treatment, and follow-up showing key strategies and unsolved questions of the management of BD patients.Methods: We analyzed data of patients identified by the Regional Centre for Newborn Screening of Verona and followed by the Inherited Metabolic Disease Unit of Verona and Neonatal Intensive Care Unit of Bolzano, Italy, from 2014 to 2020.Results: Thirty-seven patients were diagnosed by NBS (five profound and 32 partial BD), with a total incidence of 1:5,996. All were started on biotin at diagnosis and presented no symptoms at follow-up. Analysis of parents and siblings led to identification of five asymptomatic patients with partial BD: one asymptomatic parent and four young siblings. Genetic analysis of the BTD gene identified 17 different genotypes and one mutation not previously known.Discussion: Our data confirm that NBS introduction had a dramatic impact on BD diagnosis, and the incidence has increased significantly compared to other areas. Partial defects are more common than profound and have a distinctive genotype. Partial BD treatment is still controversial even at what dose of biotin and for how long. At the end, BD treatment is very easy and inexpensive and prevents severe neurological damage. Sharing experiences is essential to achieving guidelines for treatment and follow-up and a better genotype–phenotype correlation.
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- 2021
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3. Thyroid function in children and adolescents with Hashimoto’s thyroiditis after l-thyroxine discontinuation
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Giorgio Radetti, Mariacarolina Salerno, Chiara Guzzetti, Marco Cappa, Andrea Corrias, Alessandra Cassio, Graziano Cesaretti, Roberto Gastaldi, Mario Rotondi, Fiorenzo Lupi, Antonio Fanolla, Giovanna Weber, and Sandro Loche
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Hashimoto’s thyroiditis ,children ,l-thyroxine treatment ,subclinical hypothyroidism ,autoimmune thyroiditis ,Diseases of the endocrine glands. Clinical endocrinology ,RC648-665 - Abstract
Objective: Thyroid function may recover in patients with Hashimoto’s thyroiditis (HT). Design: To investigate thyroid function and the need to resume l-thyroxine treatment after its discontinuation. Setting: Nine Italian pediatric endocrinology centers. Patients: 148 children and adolescents (25 m and 123 f) with HT on treatment with l-thyroxine for at least one year. Intervention and main outcome measure: Treatment was discontinued in all patients, and serum TSH and fT4 concentrations were measured at the time of treatment discontinuation and then after 2, 6, 12 and 24 months. Therapy with l-thyroxine was re-instituted when TSH rose >10 U/L and/or fT4 was below the normal range. The patients were followed up when TSH concentrations were between 5 and 10 U/L and fT4 was in the normal range. Results: At baseline, TSH was in the normal range in 139 patients, and was between 5 and 10 U/L in 9 patients. Treatment was re-instituted after 2 months in 37 (25.5%) patients, after 6 months in 13 patients (6.99%), after 12 months in 12 patients (8.6%), and after 24 months in an additional 3 patients (3.1%). At 24 months, 34 patients (34.3%) still required no treatment. TSH concentration >10 U/L at the time of diagnosis was the only predictive factor for the deterioration of thyroid function after l-thyroxine discontinuation. Conclusions: This study confirms that not all children with HT need life-long therapy with l-thyroxine, and the discontinuation of treatment in patients with a TSH level
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- 2017
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4. Seronegative phenotype in a pediatric population with Hashimoto’s thyroiditis
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Caterina Rizzardi, Roberto Franceschi, Vittoria Cauvin, Maria Bellizzi, Alice Liguori, Silvia Longhi, Fiorenzo Lupi, Massimo Soffiati, and Giorgio Radetti
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Endocrinology, Diabetes and Metabolism ,General Medicine - Published
- 2022
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5. High Tg/HDL-Cholesterol Ratio Highlights a Higher Risk of Metabolic Syndrome in Children and Adolescents with Severe Obesity
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Giorgio Radetti, Graziano Grugni, Fiorenzo Lupi, Antonio Fanolla, Diana Caroli, Adele Bondesan, and Alessandro Sartorio
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metabolic syndrome ,children ,adolescents ,indexes ,General Medicine - Abstract
Few data are currently available on the reliability of the different anthropometric, instrumental and biochemical indexes in recognizing the presence of metabolic syndrome (MetS) in children and adolescents with severe obesity. Therefore, the objective of our study was to find out the simplest and most accurate predictive index of MetS in this population at-risk. In 1065 children and adolescents (563 f, 502 m), aged 14.6 2.1 years (range 10–17), with severe obesity [BMI-SDS 3.50 0.36 (range 3.00–5.17)], the following indexes were evaluated: BMI, BMI-SDS, Tri-Ponderal Mass Index,Waist-to-Height ratio, TG/HDL-Cholesterol ratio, Cardiometabolic Index (CMI), and Visceral Adiposity Index (VAI). For each subject, all the components of MetS, defined according to the IDF criteria, were determined. Overall, the presence of MetS was found in 324 patients (30.4%), 167 males (33.3%) and 157 females (27.9%). According to the ROC analysis, three indexes (VAI, CMI and TG/HDL-Cholesterol ratio), performed significantly better than the other ones in identifying MetS, with no difference among them. In conclusion, the TG/HDL ratio, which just needs the evaluation of two simple biochemical parameters, offers the same accuracy as other more sophisticated indexes in recognizing MetS in children and adolescents with severe obesity, thus making it the best predictor to be easily used.
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- 2022
6. Impact of personal protective equipment on neonatal resuscitation procedures: a randomised, cross-over, simulation study
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Francesco Cavallin, Alex Staffler, Marion Bellutti, Daniele Trevisanuto, Fiorenzo Lupi, and Benedetta Bua
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Resuscitation ,medicine.medical_specialty ,Time Factors ,Consultants ,medicine.medical_treatment ,resuscitation ,Nursing Staff, Hospital ,Manikins ,neonatology ,Positive-Pressure Respiration ,Intensive Care Units, Neonatal ,Intubation, Intratracheal ,medicine ,Humans ,Positive pressure ventilation ,Trial registration ,Pandemics ,Personal Protective Equipment ,Personal protective equipment ,Original Research ,Cross over ,Cross-Over Studies ,SARS-CoV-2 ,business.industry ,Tracheal intubation ,Delivery room ,Infant, Newborn ,COVID-19 ,Internship and Residency ,Obstetrics and Gynecology ,General Medicine ,Pediatrics, Perinatology and Child Health ,Emergency medicine ,business ,Neonatal resuscitation - Abstract
Background and objective Healthcare providers should use personal protective equipment (PPE) when performing aerosol-generating medical procedures during highly infectious respiratory pandemics. We aimed to compare the timing of neonatal resuscitation procedures in a manikin model with or without PPE for prevention of SARS-COVID-19 transmission. Methods A randomised controlled cross-over (AB/BA) trial of resuscitation with or without PPE in a neonatal resuscitation scenario. Forty-eight participants were divided in 12 consultant–nurse teams and 12 resident–nurse teams. The primary outcome measure was the time of positive pressure ventilation (PPV) initiation. The secondary outcome measures were duration of tracheal intubation procedure, time of initiation of chest compressions, correct use of PPE and discomfort/limitations using PPE. Results There were significant differences in timing of PPV initiation (consultant–nurse teams: mean difference (MD) 6.0 s, 95% CI 1.1 to 10.9 s; resident–nurse teams: MD 11.0 s, 95% CI 1.9 to 20.0 s), duration of tracheal intubation (consultant–nurse teams: MD 22.0 s, 95% CI 7.0 to 36.9 s; resident–nurse teams: MD 9.1 s, 95% CI 0.1 to 18.1 s) and chest compressions (consultant–nurse teams: MD 32.3 s, 95% CI 14.4 to 50.1 s; resident–nurse teams: MD 9.1 s, 95% CI 0.1 to 18.1 s). Twelve participants completed the dressing after entering the delivery room. PPE was associated with visual limitations (43/48 participants), discomfort in movements (42/48), limitations in communication (32/48) and thermal discomfort (29/48). Conclusions In a manikin model, using PPE delayed neonatal resuscitation procedures with potential clinical impact. Healthcare workers reported limitations and discomfort when wearing PPE. Trial registration number NCT04666233., Unique study of neonatal resuscitation in PPE using a simulation model which identified small but potentially important differences in timings of key resus events. Also shows the inevitable discomfort and inconvenience of PPE in this scenario.
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- 2021
7. Accuracy of Different Indexes of Body Composition and Adiposity in Identifying Metabolic Syndrome in Adult Subjects with Prader-Willi Syndrome
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Giorgio Radetti, Fiorenzo Lupi, Alessandro Sartorio, Graziano Grugni, and Antonio Fanolla
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congenital, hereditary, and neonatal diseases and abnormalities ,medicine.medical_specialty ,obesity ,Waist ,lcsh:Medicine ,030209 endocrinology & metabolism ,030204 cardiovascular system & hematology ,Article ,metabolic syndrome ,Correlation ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Mass index ,business.industry ,adiposity indexes ,lcsh:R ,Area under the curve ,nutritional and metabolic diseases ,General Medicine ,Circumference ,medicine.disease ,Obesity ,nervous system diseases ,Cardiology ,Metabolic syndrome ,Prader-Willi syndrome ,business ,Body mass index - Abstract
(1) Objective: To compare the accuracy of different indexes of adiposity and/or body composition in identifying metabolic syndrome (MetS) in adult patients suffering from Prader‒Willi syndrome (PWS). (2) Study Design: One hundred and twenty PWS patients (69 females and 51 males), aged 29.1 ±, 9.4 years, body mass index (BMI) 36.7 ±, 9.9, were evaluated. The following indexes were assessed in each subject: body mass index (BMI), fat-free mass index (FFMI), fat mass index (FMI), tri-ponderal mass index (TMI), waist-to-height ratio (WtHR) and the body mass fat index (BMFI), which adjusts the BMI for the percentage of body fat and waist circumference. Thereafter, a threshold value adjusted for age and sex, which could identify MetS, was calculated for each index. (3) Results: A significant correlation was found among all indexes (p <, 0.0001 for all). However, when the area under the curve (AUC) was compared, BMFI performed better than FMI (p <, 0.05) and BMI better than TMI (p <, 0.05), but only in females. (4) Conclusions: Besides small differences, all the indexes taken into consideration seem to have the same ability to identify MetS in adults with PWS. Consequently, the most easily calculated index, i.e., BMI, should be considered as the best choice. The use of thresholds appropriate for sex and age can further improve its accuracy.
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- 2020
8. A thicker intima-media carotid wall was found in a cohort of children with recent onset migraine
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Flavio Egger, Michela Salandin, Fiorenzo Lupi, Lucio Parmeggiani, Giorgio Radetti, and Marco Primerano
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Male ,medicine.medical_specialty ,Adolescent ,Migraine Disorders ,Population ,Disease ,Carotid Intima-Media Thickness ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Internal medicine ,Humans ,Medicine ,Glucose homeostasis ,Child ,Recent onset ,education ,Stroke ,education.field_of_study ,business.industry ,General Medicine ,medicine.disease ,Migraine ,Case-Control Studies ,Pediatrics, Perinatology and Child Health ,Cohort ,Cardiology ,Female ,business ,Vascular function ,030217 neurology & neurosurgery - Abstract
AIM Migraine affects approximately 10-20% of the general population, including children and adolescents, and an association between migraine and increased risks for cardiovascular disease and stroke have been reported in adult patients. This study aimed to address the lack of data on children with migraine. METHODS This study comprised 30 children and adolescents (16 male) with migraine. We evaluated their biochemical profile, glucose homeostasis, vascular function by flow-mediated dilatation and arterial structure by carotid intima-media thickness (cIMT). A group of 32 age, sex and auxologically matched children (17 male) served as controls. RESULTS The group of children with migraine had a normal biochemical profile and glucose homeostasis, but presented with significantly thicker cIMT than the control group (0.48 ± 0.07 mm versus 0.45 ± 0.04, p
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- 2016
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9. Different Sports in Adolescence: Effect on Lipid Profile, Glucose Metabolism, Body Composition, Bone Density, Bone Quality, Bone Markers, Vascular Function and Structure, Pituitary and Hypothalamic Antibodies
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Annamaria De Bellis, Marco Cappa, Flavio Egger, Davide Gatti, Fiorenzo Lupi, Giorgio Radetti, and Simone Grossgasteiger
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medicine.medical_specialty ,biology ,Bone density ,medicine.diagnostic_test ,business.industry ,Bone markers ,Carbohydrate metabolism ,Endocrinology ,Internal medicine ,Bone quality ,medicine ,biology.protein ,Composition (visual arts) ,Antibody ,business ,Lipid profile ,Vascular function - Published
- 2015
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10. Thyroid function in children and adolescents with Hashimoto's thyroiditis after l-thyroxine discontinuation
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Andrea Corrias, Giovanna Weber, Marco Cappa, Alessandra Cassio, Mario Rotondi, Chiara Guzzetti, Antonio Fanolla, Roberto Gastaldi, Fiorenzo Lupi, Sandro Loche, Graziano Cesaretti, Mariacarolina Salerno, Giorgio Radetti, Radetti G, Salerno M, Guzzetti C, Cappa M, Corrias A, Cassio A, Cesaretti G, Gastaldi R, Rotondi M, Lupi F, Fanolla A, Weber G, Loche S., Radetti, Giorgio, Salerno, Mariacarolina, Guzzetti, Chiara, Cappa, Marco, Corrias, Andrea, Cassio, Alessandra, Cesaretti, Graziano, Gastaldi, Roberto, Rotondi, Mario, Lupi, Fiorenzo, Fanolla, Antonio, Weber, Giovanna, and Loche, Sandro
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medicine.medical_specialty ,endocrine system ,Hashimoto’s thyroiditi ,endocrine system diseases ,Pediatric endocrinology ,Hashimoto's thyroiditis , l-thyroxine ,Endocrinology, Diabetes and Metabolism ,030209 endocrinology & metabolism ,lcsh:Diseases of the endocrine glands. Clinical endocrinology ,Gastroenterology ,Thyroiditis ,Autoimmune thyroiditis ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,children ,Hashimoto’s thyroiditis, autoimmune thyroiditis, children, l-thyroxine treatment, subclinical hypothyroidism ,Internal medicine ,Internal Medicine ,medicine ,In patient ,030212 general & internal medicine ,autoimmune thyroiditi ,l-thyroxine treatment ,Normal range ,lcsh:RC648-665 ,business.industry ,Research ,Hashimoto’s thyroiditis ,autoimmune thyroiditis ,medicine.disease ,Predictive factor ,Discontinuation ,subclinical hypothyroidism ,Thyroid function ,business ,hormones, hormone substitutes, and hormone antagonists - Abstract
Objective Thyroid function may recover in patients with Hashimoto’s thyroiditis (HT). Design To investigate thyroid function and the need to resume l-thyroxine treatment after its discontinuation. Setting Nine Italian pediatric endocrinology centers. Patients 148 children and adolescents (25 m and 123 f) with HT on treatment with l-thyroxine for at least one year. Intervention and main outcome measure Treatment was discontinued in all patients, and serum TSH and fT4 concentrations were measured at the time of treatment discontinuation and then after 2, 6, 12 and 24 months. Therapy with l-thyroxine was re-instituted when TSH rose >10 U/L and/or fT4 was below the normal range. The patients were followed up when TSH concentrations were between 5 and 10 U/L and fT4 was in the normal range. Results At baseline, TSH was in the normal range in 139 patients, and was between 5 and 10 U/L in 9 patients. Treatment was re-instituted after 2 months in 37 (25.5%) patients, after 6 months in 13 patients (6.99%), after 12 months in 12 patients (8.6%), and after 24 months in an additional 3 patients (3.1%). At 24 months, 34 patients (34.3%) still required no treatment. TSH concentration >10 U/L at the time of diagnosis was the only predictive factor for the deterioration of thyroid function after l-thyroxine discontinuation. Conclusions This study confirms that not all children with HT need life-long therapy with l-thyroxine, and the discontinuation of treatment in patients with a TSH level
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- 2017
11. The relationship between hyperthyrotropinemia and metabolic and cardiovascular risk factors in a large group of overweight and obese children and adolescents
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Giorgio Radetti, Fiorenzo Lupi, Graziano Grugni, Alessandro Sartorio, Nicoletta Marazzi, Antonio Fanolla, and Silvia Longhi
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Male ,medicine.medical_specialty ,Adolescent ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,030209 endocrinology & metabolism ,030204 cardiovascular system & hematology ,Overweight ,Group A ,Group B ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Metabolic Diseases ,Risk Factors ,Internal medicine ,Medicine ,Humans ,Obesity ,Child ,Retrospective Studies ,biology ,business.industry ,Thyroid disease ,Insulin ,medicine.disease ,Prognosis ,Hyperthyroxinemia ,Blood pressure ,Cross-Sectional Studies ,Cardiovascular Diseases ,Child, Preschool ,biology.protein ,Female ,medicine.symptom ,Antibody ,business ,Follow-Up Studies - Abstract
Mild TSH elevations are frequently observed in obese patients, in the absence of any detectable thyroid disease. Our objective is to evaluate the relationship between the raised TSH levels and the biochemical and clinical consequences of obesity. This is a retrospective cross-sectional study of a large population of obese children and adolescents. We evaluated 833 subjects (340 m, 493 f), aged 14.4 ± 2.5 (range 5.2–18.5) years, height SDS 0.27 ± 1.04 (−3.49–4.35), and BMI SDS 2.94 ± 0.59 (1.60–4.68). Body composition, free T4, TSH, anti-TPO antibodies, anti-TG antibodies, inflammation markers (total WBC and the subtypes, ultrasensitive C-reactive protein), and metabolic parameters [AST, ALT, γGT, ALP, glycaemia, insulin, total cholesterol (TC), HDL-cholesterol (HDL-C), and LDL-cholesterol (LDL-C), triglycerides (TG)] were measured, and oral disposition index (ODI) and cardiovascular risk factors (TC/HDL-C and TG/HDL-C) were calculated. After exclusion of the subjects showing anti-thyroid antibodies, the remaining 779 (325 m, 454 f) were then subdivided into two subgroups according to a TSH value below (group A) or above (group B) 4.5 mU/L. Clinical characteristics and hematological markers of patients with and without positive anti-thyroid antibodies were similar, with the exception of higher TSH levels in the latter group. Using analysis of covariance, the subjects of group B had significantly higher values of TC (170.3 ± 28.7 vs 163.3 ± 32.9 mg/dL; p
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- 2017
12. Serum α-klotho levels are not informative for the evaluation of growth hormone secretion in short children
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Cristina Meazza, Giorgio Radetti, Randa I. Khalaf, Carmine Tinelli, Heba Elsedfy, Fiorenzo Lupi, Mohamed El Kholy, Sara Pagani, and Mauro Bozzola
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Male ,0301 basic medicine ,medicine.medical_specialty ,Adolescent ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,030209 endocrinology & metabolism ,urologic and male genital diseases ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Internal medicine ,medicine ,Humans ,Insulin-Like Growth Factor I ,Child ,Klotho Proteins ,Klotho ,Growth Disorders ,Glucuronidase ,030109 nutrition & dietetics ,Human Growth Hormone ,business.industry ,Growth factor ,Insulin tolerance test ,medicine.disease ,female genital diseases and pregnancy complications ,Growth hormone secretion ,Idiopathic short stature ,Pediatrics, Perinatology and Child Health ,Pegvisomant ,Biomarker (medicine) ,Egypt ,Female ,business ,Hormone ,medicine.drug - Abstract
Background:α-Klotho is a transmembrane protein that can be cleaved and act as a circulating hormone (s-klotho). s-Klotho serum levels seem to reflect growth hormone (GH) secretory status. We investigated the role of s-klotho as a reliable marker of GH secretion in short children and the factors influencing its secretion.Methods:We enrolled 40 short Egyptian children (20 GH deficiency [GHD] and 20 idiopathic short stature [ISS]). They underwent a pegvisomant-primed insulin tolerance test (ITT) and were accordingly reclassified as 16 GHD and 24 ISS. The samples obtained before and 3 days after pegvisomant administration, prior to the ITT, were used for assaying insulin-like growth factor (IGF)-I and s-klotho.Results:IGF-I and s-klotho serum levels were not significantly different (p=0.059 and p=0.212, respectively) between GHD and ISS. After pegvisomant, a significant reduction in IGF-I and s-klotho levels was found in both groups. s-Klotho significantly correlated only with IGF-I levels in both groups.Conclusions:s-Klotho mainly reflects the IGF-I status and cannot be considered a reliable biomarker for GH secretion in children.
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- 2017
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13. The influence of gh treatment on glucose homeostasis in girls with turner syndrome: A 7-year study
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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
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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.
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- 2017
14. The Influence of Growth Hormone Treatment on Glucose Homeostasis in GrowthHormone-Deficient Children: A Six-Year Follow-Up Study
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Ylenia Girtler, Giorgio Radetti, Federico Baronio, Silvia Longhi, Laura Mazzanti, Federica Tamburrino, Fiorenzo Lupi, Anisia Fazzi, Baronio, Federico, Mazzanti, Laura, Girtler, Ylenia, Tamburrino, Federica, Fazzi, Anisia, Lupi, Fiorenzo, Longhi, Silvia, and Radetti, Giorgio
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0301 basic medicine ,Blood Glucose ,Male ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Endocrinology, Diabetes and Metabolism ,030209 endocrinology & metabolism ,Growth ,Growth hormone ,Follow-Up Studie ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Internal medicine ,Insulin-Secreting Cells ,Homeostasi ,Medicine ,Glucose homeostasis ,Oral disposition index ,Homeostasis ,Humans ,Insulin ,Oral glucose tolerance ,Child ,Children ,business.industry ,Human Growth Hormone ,Follow up studies ,Insulin sensitivity ,Infant ,Glucose Tolerance Test ,Growth hormone treatment ,030104 developmental biology ,Insulin-Secreting Cell ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Blood sugar regulation ,Female ,Insulin Resistance ,business ,Human ,Follow-Up Studies - Abstract
Background: Growth hormone (GH) influences glucose homeostasis by negatively affecting insulin sensitivity, leading to a compensatory increase in insulin secretion. It has recently been reported, in animals and humans, that GH might also stimulate insulin secretion by directly affecting the growth and function of pancreatic β-cells. The aim of this work was to longitudinally study the insulin sensitivity (HOMA-S), insulin secretion [insulinogenic index (IGI)] and capacity of β-cells to adapt to changes in insulin sensitivity [oral disposition index (ODI)] in GH-deficient (GHD) children under GH treatment. Methods: We studied 99 GHD (62 male, 37 female; age 8.9 ± 3.5 years) children for a median period of 6 years (range 1.5-16.2). Every year, our patients underwent an oral glucose tolerance test, which was used to calculate the HOMA-S, IGI and ODI. Results: Although HOMA-S remained unchanged, an increase in IGI and ODI was observed, becoming significant after 6 years of treatment (1.25 ± 1.28 vs. 2.35 ± 2.38, p < 0.05 and 0.57 ± 0.68 vs. 1.50 ± 1.92, p < 0.01, respectively). Conclusion: Our results suggest a positive influence of GH treatment on the β-cell secretory capacity in children with GH deficiency.
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- 2016
15. The effect of two different GH dosages on final height and bone geometry
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Mauro Bozzola, Giorgio Radetti, Fiorenzo Lupi, Giovanni Farello, and Silvia Longhi
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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
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