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Bezen D, Tütüncüler Kökenli F, Dilek E, Ağ Seleci D, Erbaş H. Evaluation of Glucose Metabolism and Cardiovascular Risk Factors in Prepubertal Girls with Premature Pubarche. J Clin Res Pediatr Endocrinol 2022; 14:385-392. [PMID: 35633646 PMCID: PMC9724051 DOI: 10.4274/jcrpe.galenos.2022.2022-1-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Premature pubarche (PP) is a risk factor for metabolic syndrome (MS). The aim was to evaluate if glucose-insulin metabolism, cardiovascular risk factors, familial cardiovascular risk factors (FCVRF) created a risk for insulin resistance (IR) and if PP was a risk factor alone for MS in normal weight prepubertal girls with PP. METHODS Thirty-five prepubertal, non-obese girls with PP with normal birth weight and 35 age-matched control girls were evaluated for FCVRF, anthropometric measurements, blood pressure, lipid profile, fasting blood glucose-insulin, hemoglobin A1c (HbA1c), sex hormone binding globulin (SHBG), leptin, adiponectin, tumor necrosis factor-alpha (TNF-α), androgen levels, and bone age. Oral glucose tolerance test was performed in PP participants. Homeostasis model of assessment of IR (HOMA-IR), fasting glucose/insulin ratio, atherogenic index (AI), and free androgen index (FAI) were calculated. PP participants were further stratified by FCVRF. RESULTS HbA1c, lipid profile, testosterone, leptin, adiponectin, TNF-α, HOMA-IR, glucose/insulin ratio, AI, and fasting glucose-insulin levels were similar. In the PP group FAI was significantly higher (p=0.001), whereas SHBG was significantly lower (p=0.010) than the control group. Leptin levels of FCVRF+ and FCVRF- subgroups were 15.2±9.1 and 9.7±7.2 ng/mL, respectively and the difference was significant (p=0.016). CONCLUSION As PP does not appear to be a risk factor alone for impaired glucose metabolism and IR in prepubertal non-obese girls with normal birth weight, it is our opinion that it is unnecessary to examine in detail such cases before puberty. Low SHBG levels in the PP group and high leptin levels in FCVRF+ subgroup might suggest that these may be predictive for MS in the future.
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Affiliation(s)
- Diğdem Bezen
- University of Health Sciences Turkey, İstanbul Prof. Dr. Cemil Taşçıoğlu City Hospital, Clinic of Pediatrics, Division of Pediatric Endocrinology, İstanbul, Turkey,* Address for Correspondence: University of Health Sciences Turkey, İstanbul Prof. Dr. Cemil Taşçıoğlu City Hospital, Clinic of Pediatrics, Division of Pediatric Endocrinology, İstanbul, Turkey Phone: +90 532 628 37 71 E-mail:
| | - Filiz Tütüncüler Kökenli
- Trakya University Faculty of Medicine, Department of Pediatrics, Clinic of Pediatric Endocrinology, Edirne, Turkey
| | - Emine Dilek
- Trakya University Faculty of Medicine, Department of Pediatrics, Clinic of Pediatric Endocrinology, Edirne, Turkey
| | - Didem Ağ Seleci
- Trakya University Faculty of Medicine, Department of Biochemistry, Edirne, Turkey
| | - Hakan Erbaş
- Trakya University Faculty of Medicine, Department of Biochemistry, Edirne, Turkey
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Pereira A, Merino PM, Santos JL, Iñiguez G, Cutler GB, Corvalan C, Mericq V. High DHEAS in girls and metabolic features throughout pubertal maturation. Clin Endocrinol (Oxf) 2022; 96:419-427. [PMID: 34904249 DOI: 10.1111/cen.14654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/23/2021] [Accepted: 11/27/2021] [Indexed: 01/19/2023]
Abstract
CONTEXT An association between premature adrenarche and metabolic syndrome at presentation has been described. Our aim was to assess whether the presence of high dehydroepiandrosterone sulphate (DHEAS [HD]) at the adrenarche determines the risk of metabolic syndrome during puberty, taking into account body mass index (BMI) and birth weight. DESIGN Prospective observational. PATIENTS Five hundred four girls from the Growth and Obesity Chilean Cohort Study were followed from birth through puberty. At age ~7, subjects were classified by DHEAS concentrations into the HD (>75th percentile) or normal DHEAS (ND, ≤75th percentile) subgroups. MEASUREMENTS Anthropometrics, semiannual clinical pubertal staging and hormonal and metabolic levels. The relationships among DHEAS at age ~7, metabolic syndrome, and each of its components independently, were analyzed by linear and logistic regression models during puberty and 1-year postmenarche, adjusted by confounders. RESULTS Girls with HD at 7 years exhibited higher BMI, more central fat and higher serum androgen and insulin like growth factor (IGF)-I levels throughout puberty. Also, girls with HD had a greater prevalence of hyperglycemia at B2 and B4 breast stages, and of low HDL at B4. At 1 year after menarche, HD girls had a higher prevalence of metabolic syndrome, and those with BMI > 1 SD score had a higher metabolic score and insulin levels than ND girls with similar BMI. CONCLUSIONS Our observations suggest that girls with HD at the age of adrenarche may be at greater risk for metabolic syndrome at adolescence, especially in those who are overweight or obese. Our results emphasize the importance of lifestyle interventions for childhood overweight and obesity among girls with HD.
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Affiliation(s)
- Ana Pereira
- Institute of Nutrition and Food Technology (INTA), Faculty of Medicine, University of Chile, Santiago, Chile
| | - Paulina M Merino
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Santiago, Chile
| | - Jose L Santos
- Department of Nutrition, Diabetes and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - German Iñiguez
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Santiago, Chile
| | | | - Camila Corvalan
- Institute of Nutrition and Food Technology (INTA), Faculty of Medicine, University of Chile, Santiago, Chile
| | - Veronica Mericq
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Santiago, Chile
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3
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Livadas S, Bothou C, Macut D. Premature Adrenarche and its Association with Cardiovascular Risk in Females. Curr Pharm Des 2020; 26:5609-5616. [PMID: 33045962 DOI: 10.2174/1381612826666201012164726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 08/24/2020] [Indexed: 11/22/2022]
Abstract
Early activation of the adrenal zona reticularis, leading to adrenal androgen secretion, mainly dehydroepiandrosterone sulfate (DHEAS), is called premature adrenarche (PA). The fact that adrenal hyperandrogenism in females has been linked to a cluster of cardiovascular (CV) risk factors, even in prepubertal children, warrants investigation. Controversial results have been obtained in this field, probably due to genetic, constitutional, and environmental factors or differences in the characteristics of participants. In an attempt to understand, in depth, the impact of PA as a potential activator of CV risk, we critically present available data stratified according to pubertal status. It seems that prepubertally, CV risk is increased in these girls, but is somewhat attenuated during their second decade of life. Furthermore, different entities associated with PA, such as polycystic ovary syndrome, non-classical congenital adrenal hyperplasia, heterozygosity of CYP21A2 mutations, and the impact of DHEAS on CV risk, are reviewed. At present, firm and definitive conclusions cannot be drawn. However, it may be speculated that girls with a history of PA display a hyperandrogenic hormonal milieu that may lead to increased CV risk. Accordingly, appropriate long-term follow-up and early intervention employing a patient-oriented approach are recommended.
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Affiliation(s)
- Sarantis Livadas
- Endocrine Unit, Metropolitan Hospital, Ermou 6, 10563, Athens, Greece
| | - Christina Bothou
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital of Zurich, Zurich, Switzerland
| | - Djuro Macut
- Department of Endocrinology, Diabetes and Metabolic Diseases, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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4
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Abstract
The adrenal gland is a source of sex steroid precursors, and its activity is particularly relevant during fetal development and adrenarche. Following puberty, the synthesis of androgens by the adrenal gland has been considered of little physiologic importance. Dehydroepiandrosterone (DHEA) and its sulfate, DHEAS, are the major adrenal androgen precursors, but they are biologically inactive. The second most abundant unconjugated androgen produced by the human adrenals is 11β-hydroxyandrostenedione (11OHA4). 11-Ketotestosterone, a downstream metabolite of 11OHA4 (which is mostly produced in peripheral tissues), and its 5α-reduced product, 11-ketodihydrotestosterone, are bioactive androgens, with potencies equivalent to those of testosterone and dihydrotestosterone. These adrenal-derived androgens all share an oxygen atom on carbon 11, so we have collectively termed them 11-oxyandrogens. Over the past decade, these androgens have emerged as major components of several disorders of androgen excess, such as congenital adrenal hyperplasia, premature adrenarche and polycystic ovary syndrome, as well as in androgen-dependent tumours, such as castration-resistant prostate cancer. Moreover, in contrast to the more extensively studied, traditional androgens, circulating concentrations of 11-oxyandrogens do not demonstrate an age-dependent decline. This Review focuses on the rapidly expanding knowledge regarding the implications of 11-oxyandrogens in human physiology and disease.
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Affiliation(s)
- Adina F Turcu
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, USA.
| | - Juilee Rege
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
| | - Richard J Auchus
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, USA
- Department of Pharmacology, University of Michigan, Ann Arbor, MI, USA
| | - William E Rainey
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, USA
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
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5
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Caffarelli C, Santamaria F, Mastrorilli C, Santoro A, Iovane B, Petraroli M, Gaeta V, Di Pinto R, Borrelli M, Bernasconi S, Corsello G. Report on advances for pediatricians in 2018: allergy, cardiology, critical care, endocrinology, hereditary metabolic diseases, gastroenterology, infectious diseases, neonatology, nutrition, respiratory tract disorders and surgery. Ital J Pediatr 2019; 45:126. [PMID: 31619283 PMCID: PMC6796402 DOI: 10.1186/s13052-019-0727-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 09/30/2019] [Indexed: 12/11/2022] Open
Abstract
This review reported notable advances in pediatrics that have been published in 2018. We have highlighted progresses in allergy, cardiology, critical care, endocrinology, hereditary metabolic diseases, gastroenterology, infectious diseases, neonatology, nutrition, respiratory tract disorders and surgery. Many studies have informed on epidemiologic observations. Promising outcomes in prevention, diagnosis and treatment have been reported. We think that advances realized in 2018 can now be utilized to ameliorate patient care.
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Affiliation(s)
- Carlo Caffarelli
- Clinica Pediatrica, Department of Medicine and Surgery, Azienda Ospedaliera-Universitaria, University of Parma, Via Gramsci 14, Parma, Italy.
| | - Francesca Santamaria
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Carla Mastrorilli
- UO Pediatria e Pronto Soccorso, Azienda Ospedaliero-Universitaria Consorziale Policlinico Pediatric Hospital Giovanni XXIII, Bari, Italy
| | - Angelica Santoro
- Clinica Pediatrica, Department of Medicine and Surgery, Azienda Ospedaliera-Universitaria, University of Parma, Via Gramsci 14, Parma, Italy
| | - Brunella Iovane
- UOC Pediatria Generale e d'Urgenza, Department of Medicine and Surgery, Azienda Ospedaliera-Universitaria, University of Parma, Parma, Italy
| | - Maddalena Petraroli
- Clinica Pediatrica, Department of Medicine and Surgery, Azienda Ospedaliera-Universitaria, University of Parma, Via Gramsci 14, Parma, Italy
| | - Valeria Gaeta
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Rosita Di Pinto
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Melissa Borrelli
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Sergio Bernasconi
- Pediatrics Honorary Member University Faculty, G D'Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Giovanni Corsello
- Department of Sciences for Health Promotion and Mother and Child Care "G. D'Alessandro", University of Palermo, Palermo, Italy
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6
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Liimatta J, Utriainen P, Laitinen T, Voutilainen R, Jääskeläinen J. Cardiometabolic Risk Profile Among Young Adult Females With a History of Premature Adrenarche. J Endocr Soc 2019; 3:1771-1783. [PMID: 31528825 PMCID: PMC6733041 DOI: 10.1210/js.2019-00193] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/09/2019] [Indexed: 12/14/2022] Open
Abstract
Context Premature adrenarche (PA) is associated with childhood overweight and hyperinsulinemia; the long-term cardiometabolic outcome is unknown. Objective To study cardiometabolic profile in adult women with previous PA. Design and participants Thirty women with PA and 41 control subjects were followed from prepuberty to young adulthood. Main outcome measures Prevalence of the metabolic syndrome (MetS) and clinical and biochemical cardiovascular risk factors. Results There were no differences in the prevalence of MetS or in any parameters indicating dyslipidemia, hypertension, hepatosteatosis, atherosclerosis, or low-grade inflammation between the study groups. However, prevalence of insulin resistance (IR; P = 0.014) and acanthosis nigricans (P = 0.010) was higher in the PA group. Neither fasting glucose nor insulin concentrations differed between the study groups, but HbA1c [adjusted for body mass index (BMI) P = 0.011] and Homeostatic Model Assessment of Insulin Resistance (P = 0.044; BMI-adjusted P = nonsignificant) were higher in the PA group. Although BMI and fat percentage were comparable between the study groups, the PA group had higher central fat mass than the control group. In the whole study population, MetS and IR were associated with greater adult fat mass, but no prepubertal factors predicting later IR were found. Conclusion PA does not seem to be associated with MetS, dyslipidemia, hypertension, atherosclerosis, or low-grade inflammation in young adult women. However, some women with PA may be at an increased risk of unfavorable glucose metabolism, which is associated with increased central adiposity at adult age rather than determined by prepubertal factors.
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Affiliation(s)
- Jani Liimatta
- Department of Pediatrics, University of Eastern Finland, Kuopio, Finland.,Department of Pediatrics, Kuopio University Hospital, Kuopio, Finland
| | - Pauliina Utriainen
- Department of Pediatrics, University of Eastern Finland, Kuopio, Finland.,Department of Pediatrics, Kuopio University Hospital, Kuopio, Finland
| | - Tomi Laitinen
- Department of Clinical Physiology and Nuclear Medicine, University of Eastern Finland, Kuopio, Finland.,Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Raimo Voutilainen
- Department of Pediatrics, University of Eastern Finland, Kuopio, Finland.,Department of Pediatrics, Kuopio University Hospital, Kuopio, Finland
| | - Jarmo Jääskeläinen
- Department of Pediatrics, University of Eastern Finland, Kuopio, Finland.,Department of Pediatrics, Kuopio University Hospital, Kuopio, Finland
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7
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Effect of Interaction between Early Menarche and Genetic Polymorphisms on Triglyceride. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9148920. [PMID: 30931082 PMCID: PMC6410422 DOI: 10.1155/2019/9148920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 11/06/2018] [Accepted: 11/10/2018] [Indexed: 01/24/2023]
Abstract
Early menarche has been associated with increased risk of metabolic syndrome. Therefore, investigating the association of each component of metabolic syndrome with age at menarche, and interactions between them, might lead to a better understanding of metabolic syndrome pathogenesis. In this study, we evaluated age at menarche for risk of metabolic syndrome and associations with its components. As a result, the risk of MetS incidence was significantly increased only at ≤12 years of age at menarche (OR = 1.91, P < 0.05). Women with early menarche (≤12 years) had significantly higher levels of triglycerides (β coefficient = 37.83, P = 0.02). In addition, hypertriglyceridemia was significantly increased at early menarche with 1.99 (95% CI: 1.16–3.41, P < 0.01). With GWAS-based pathway analysis, we found the type 2 diabetes mellitus, stress-activated protein kinase signaling, and Jun amino-terminal kinase cascade pathways (all nominal P < 0.001, all FDR < 0.05) to be significantly involved with early menarche on triglyceride levels. These findings may help us understand the role of early menarche on triglyceride and interaction between gene and early menarche on triglyceride for the development of metabolic syndrome.
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Mäntyselkä A, Lindi V, Viitasalo A, Eloranta AM, Ågren J, Väisänen S, Voutilainen R, Laitinen T, Lakka TA, Jääskeläinen J. Associations of Dehydroepiandrosterone Sulfate With Cardiometabolic Risk Factors in Prepubertal Children. J Clin Endocrinol Metab 2018; 103:2592-2600. [PMID: 29757399 DOI: 10.1210/jc.2018-00184] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 05/07/2018] [Indexed: 02/13/2023]
Abstract
CONTEXT Premature adrenarche (PA) has been associated with overweight and insulin resistance, but the associations of serum dehydroepiandrosterone sulfate (DHEAS) concentration with other cardiometabolic risk factors are uncertain. OBJECTIVE To examine the associations of serum DHEAS concentration with several cardiometabolic risk factors in children. DESIGN Cross-sectional data from the Physical Activity and Nutrition in Children Study. PARTICIPANTS Population sample of 207 girls and 225 boys aged 7.6 ± 0.4 years. MAIN OUTCOME MEASURES Cardiometabolic risk factors by serum DHEAS concentration. RESULTS DHEAS correlated positively with body mass index standard deviation score, body fat percentage, lean body mass, high-sensitivity C-reactive protein (hs-CRP), and alanine aminotransferase (ALT) when adjusted for age and sex. The associations of DHEAS with hs-CRP and ALT disappeared when adjusted also for body fat percentage. When further adjusted for birth weight SD score, DHEAS correlated negatively with low-density lipoprotein (LDL) cholesterol and LDL/high-density lipoprotein (HDL) cholesterol ratio. LDL cholesterol was lower in children with DHEAS ≥40 µg/dL than in those with DHEAS <40 µg/dL, adjusted for age, sex, and body fat percentage (86.5 vs 92.3 mg/dL, P = 0.029). This association strengthened after further adjustment for birth weight SD score (85.3 vs 92.3 mg/dL, P = 0.012). CONCLUSION Higher DHEAS is not associated with an increased cardiometabolic risk in prepubertal children. Instead, it may be protective, evidenced by an association with lower LDL cholesterol and LDL/HDL cholesterol ratio. The increased cardiometabolic risk in PA shown in many studies may be due to low birth weight and childhood overweight associated with PA.
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Affiliation(s)
- Aino Mäntyselkä
- Department of Pediatrics, School of Medicine, Kuopio University Hospital, and University of Eastern Finland Kuopio, Finland
| | - Virpi Lindi
- Institute of Biomedicine, Physiology, School of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Anna Viitasalo
- Institute of Biomedicine, Physiology, School of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Aino-Maija Eloranta
- Institute of Biomedicine, Physiology, School of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Jyrki Ågren
- Institute of Biomedicine, Physiology, School of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Sari Väisänen
- Department of Clinical Chemistry, University of Eastern Finland and Eastern Finland Laboratory Centre, Kuopio Finland
| | - Raimo Voutilainen
- Department of Pediatrics, School of Medicine, Kuopio University Hospital, and University of Eastern Finland Kuopio, Finland
| | - Tomi Laitinen
- Department of Clinical Physiology and Nuclear Medicine, School of Medicine, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - Timo A Lakka
- Institute of Biomedicine, Physiology, School of Medicine, University of Eastern Finland, Kuopio, Finland
- Department of Clinical Physiology and Nuclear Medicine, School of Medicine, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
- Kuopio Research Institute of Exercise Medicine, Kuopio, Finland
| | - Jarmo Jääskeläinen
- Department of Pediatrics, School of Medicine, Kuopio University Hospital, and University of Eastern Finland Kuopio, Finland
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9
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Cavarzere P, Mauro M, Vincenzi M, Lauriola S, Teofoli F, Gaudino R, Ramaroli DA, Micciolo R, Camilot M, Antoniazzi F. Children with premature pubarche: is an alterated neonatal 17-Ohp screening test a predictive factor? Ital J Pediatr 2018; 44:10. [PMID: 29338783 PMCID: PMC5771218 DOI: 10.1186/s13052-018-0444-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 01/02/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Neonatal screening for 21 hydroxylase deficiency is designed to detect classical form of congenital adrenal hyperplasia (CAH). It is still unclear whether newborns who result false positives at neonatal screening might later develop signs of androgen excess. The aim of this study is to verify whether a slightly elevated 17-OHP at newborn screening is a predictive factor for premature pubarche. METHODS We evaluated all infants born between 2001 and 2014 with premature pubarche. In case of increased bone age, they were submitted to functional tests to find out the cause of their symptoms. Their 17-OHP values at newborn screening for CAH were reconsidered. RESULTS We identified 330 patients (269 females, 61 males) with premature pubarche. All these children had a normal 17-OHP at newborn screening with the exception of a child, born preterm and not affected by CAH. CONCLUSIONS An elevated 17-OHP at newborn screening is not a predictive factor for premature pubarche. A likely cause of increased 17-OHP level at screening is an immaturity of adrenal gland or a neonatal stress. Therefore a strict follow up of these neonates during childhood is not necessary.
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Affiliation(s)
- Paolo Cavarzere
- Pediatric Division, Department of Pediatrics, University Hospital of Verona, Verona, Italy.
| | - Margherita Mauro
- Pediatric Division, Department of Pediatrics, University Hospital of Verona, Verona, Italy
| | - Monica Vincenzi
- Pediatric Division, Department of Pediatrics, University Hospital of Verona, Verona, Italy
| | - Silvana Lauriola
- Department of Pediatrics, Neonatal Intensive Care Unit, University Hospital of Verona, Verona, Italy
| | - Francesca Teofoli
- Pediatric Division, Department of Pediatrics, University Hospital of Verona, Verona, Italy
| | - Rossella Gaudino
- Pediatric Division, Department of Pediatrics, University Hospital of Verona, Verona, Italy
| | - Diego Alberto Ramaroli
- Pediatric Division, Department of Pediatrics, University Hospital of Verona, Verona, Italy
| | - Rocco Micciolo
- Department of Psychology and Cognitive Sciences, University of Trento, Trento, Italy
| | - Marta Camilot
- Pediatric Division, Department of Pediatrics, University Hospital of Verona, Verona, Italy
| | - Franco Antoniazzi
- Pediatric Division, Department of Pediatrics, University Hospital of Verona, Verona, Italy.,Regional Center for the diagnosis and treatment of children and adolescents rare skeletal disorders, Pediatric Clinic, Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy
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10
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Ghanny BA, Malhotra S, Kumta S, Kazachkova I, Homel P, Jacobson-Dickman E, Motaghedi R. Should children with isolated premature adrenarche be routinely evaluated for non-classical congenital adrenal hyperplasia? J Pediatr Endocrinol Metab 2016; 29:351-6. [PMID: 26641961 DOI: 10.1515/jpem-2015-0252] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 10/12/2015] [Indexed: 11/15/2022]
Abstract
BACKGROUND Current clinical practice is to evaluate children presenting with premature adrenarche (PA) for non-classical congenital adrenal hyperplasia (NC-CAH). Our main objective was to assess the prevalence of NC-CAH among children presented with PA. Additional objectives were to ascertain whether subpopulations were prone to NC-CAH, and therefore justified to be tested, and if obesity is a factor that can exclude the need for CAH testing. METHODS A retrospective chart review of all children ≤11 years, who presented to our clinic with PA between January 2012 and May 2015 (n=103) was conducted. PA was defined based on commonly accepted clinical criteria. RESULTS We did not identify any subjects with NC-CAH but one was affected with previously undiagnosed classical simple virilizing CAH (SV-CAH). The subject was born prior to the implementation of CAH newborn screening in the state of birth. The affected subject was of Middle Eastern origin and also obese (BMI >95 percentile for age and sex). CONCLUSIONS Undiagnosed CAH is an uncommon cause of PA, and therefore routine screening for NC-CAH in every case of PA may not be justified, although, perhaps, should still be considered in high risk ethnicities. Obesity does not appear to exclude the possibility of being affected with mild or NC-CAH.
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11
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Utriainen P, Laakso S, Liimatta J, Jääskeläinen J, Voutilainen R. Premature adrenarche--a common condition with variable presentation. Horm Res Paediatr 2016; 83:221-31. [PMID: 25676474 DOI: 10.1159/000369458] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 10/29/2014] [Indexed: 11/19/2022] Open
Abstract
Adrenarche refers to a maturational increase in the secretion of adrenal androgen precursors, mainly dehydroepiandrosterone (DHEA) and its sulfate (DHEAS). In premature adrenarche (PA), clinical signs of androgen action appear before the age of 8/9 years in girls/boys, concurrently with the circulating DHEA(S) concentrations above the usually low prepubertal level. The most pronounced sign of PA is the appearance of pubic/axillary hair, but also other signs of androgen effect (adult type body odor, acne/comedones, greasy hair, accelerated statural growth) are important to recognize. PA children are often overweight and taller than their peers, and the higher prevalence of PA in girls than in boys is probably explained by higher female adiposity and peripheral DHEA(S) conversion to active androgens. PA diagnosis requires exclusion of other causes of androgen excess: congenital adrenal hyperplasia, androgen-producing tumors, precocious puberty, and exogenous source of androgens. PA has been linked with unfavorable metabolic features including hyperinsulinism, dyslipidemia, and later-appearing ovarian hyperandrogenism. Although this common condition is usually benign, PA children with additional risk factors including obesity should be followed up, with the focus on weight and lifestyle. Long-term follow-up studies are warranted to clarify if the metabolic changes detected in PA children persist until adulthood.
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Affiliation(s)
- Pauliina Utriainen
- Department of Pediatrics, Kuopio University Hospital and University of Eastern Finland, Kuopio, Finland
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12
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Williams KM, Oberfield SE, Zhang C, McMahon DJ, Sopher AB. The Relationship of Metabolic Syndrome and Body Composition in Children with Premature Adrenarche: Is It Age Related? Horm Res Paediatr 2015; 84:401-7. [PMID: 26513727 PMCID: PMC4684742 DOI: 10.1159/000441498] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 10/05/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Studies that evaluate both body composition and metabolic syndrome (MeS) risk in prepubertal children with premature adrenarche (PA) are limited. METHODS Fifty-eight prepubertal children (aged 5-9 years, 33 female and 25 male), 30 with PA and 28 controls, were evaluated for the presence of MeS as defined by age-modified National Cholesterol Education Program Adult Treatment Panel III criteria. A subset had dual-energy X-ray absorptiometry and bone markers (n = 23/58) to evaluate the effect of hyperandrogenism on metabolic abnormalities and body composition. RESULTS There was no difference in the prevalence of MeS between PA and controls (p = 0.138). Children with MeS were obese with an increased waist circumference (WC) and decreased high-density lipoprotein levels. Androgens were not associated with having more than one criterion for MeS (p = 0.08) but were associated with triglycerides and WC (p = 0.029 and p = 0.041, respectively). Lean mass was greater in PA subjects (p = 0.039), and androgens correlated with bone mineral density (p = 0.029) and total body fat (p = 0.008). Subjects with a higher percent of body fat were more likely to have more than one MeS risk factor (p = 0.005). CONCLUSIONS MeS was seen only in obese subjects whether or not they had PA. Thus, it appears that obesity drives metabolic risk in the prepubertal population rather than PA. Our findings are important in determining how the prepubertal patient with PA should be evaluated for metabolic risk.
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Affiliation(s)
- Kristen M Williams
- Pediatric Endocrinology, Mount Sinai Medical Center, New York, New York, United States
| | - Sharon E Oberfield
- Pediatric Endocrinology, Columbia University Medical Center, New York, New York, United States
| | - Chengchen Zhang
- Medicine, Columbia University Medical Center, New York, New York, United States
| | - Donald J McMahon
- Medicine, Columbia University Medical Center, New York, New York, United States
| | - Aviva B Sopher
- Pediatric Endocrinology, Columbia University Medical Center, New York, New York, United States
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Uçar A, Saka N, Baş F, Hatipoğlu N, Bundak R, Darendeliler F. Reduced atherogenic indices in prepubertal girls with precocious adrenarche born appropriate for gestational age in relation to the conundrum of DHEAS. Endocr Connect 2013; 2:1-10. [PMID: 23781312 PMCID: PMC3680958 DOI: 10.1530/ec-12-0059] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 10/04/2012] [Indexed: 01/26/2023]
Abstract
CONTEXT An association between low birth weight, insulin resistance (IR), dyslipidemia, and atherogenesis has been shown in girls with precocious adrenarche (PA). OBJECTIVE To evaluate whether girls with PA born appropriate for gestational age (AGA) have increased risk for metabolic complications at initial evaluation. DESIGN/METHODS We conducted a cross-sectional study on 69 AGA born girls with PA (mean (±s.d.) age 7.1±1 years) and 45 body mass index (BMI)- and waist circumference (WC)-matched prepubertal peers born AGA (mean (±s.d.) 7.5±1.9 years). A standard 2-h oral glucose tolerance test with insulin sampling was performed. Fasting plasma lipids and high-sensitivity C-reactive protein were analyzed, and blood pressure was recorded. Insulin sensitivity (IS) index (ISIcomp), homeostasis model assessment of IR, and atherogenic index (AI) (triglycerides/high-density lipoprotein cholesterol) were calculated. SETTING The study was performed at University Hospital. RESULTS AI was significantly lower in girls with PA than in controls (P<0.001), and it was correlated with BMI SDS (r=0.44, P=0.001) and WC (r=0.39, P=0.001). The significant correlation of AI with ISIcomp (r=-0.38, P=0.001) disappeared after correcting for BMI (r=-0.185, P=0.16). Multivariate regression analysis revealed that DHEAS was the only significant parameter influencing AI in girls with born AGA (R (2)=0.475 β=-0.018, P=0.0001). CONCLUSIONS Metabolic screening in prepubertal AGA born girls with PA may yield favorable lipid profiles. AI in girls with PA is increased in relation to decreasing IS and increasing BMI and WC. DHEAS seems to have the most significant effect on AI.
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Affiliation(s)
- Ahmet Uçar
- Correspondence should be addressed to A Uçar Email
| | | | | | - Nihal Hatipoğlu
- Pediatric Endocrine Unit, Erciyes Medical FacultyErciyes UniversityKayseriTurkey
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Utriainen P, Laakso S, Jääskeläinen J, Voutilainen R. Polymorphisms of POR, SULT2A1 and HSD11B1 in children with premature adrenarche. Metabolism 2012; 61:1215-9. [PMID: 22445027 DOI: 10.1016/j.metabol.2012.02.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 02/10/2012] [Accepted: 02/17/2012] [Indexed: 11/15/2022]
Abstract
Premature adrenarche (PA) refers to an earlier than normal increase in adrenocortical androgen production. The pathogenesis of PA remains largely unknown. We hypothesized that common polymorphisms at P450 oxidoreductase (POR), steroid sulfotransferase (SULT2A1), or 11β-hydroxysteroid dehydrogenase type 1 (HSD11B1) genes could contribute to the polygenic pathogenesis of PA. We performed a case-control study on the polymorphisms rs1057868 at POR, rs182420 at SULT2A1, and rs12086634 at HSD11B1. The study cohort comprised 73 prepubertal children with PA (defined by clinical signs) and 97 age- and gender-matched healthy controls from a Finnish Caucasian population. Genotype distributions and clinical and metabolic phenotypes were determined. The genotype distributions of the polymorphisms were similar between the study groups. No variant was associated with alterations in serum adrenal steroid concentrations. The minor C variant at SULT2A1 was associated with higher serum sex hormone binding globulin (SHBG) concentrations (T/T, n=64 vs T/C&C/C, n=33; mean 94 vs 116 nmol/L; P=.001) and a trend for lower dehydroepiandrosterone sulfate/dehydroepiandrosterone ratios in the controls (P=.06), and with higher plasma total cholesterol concentrations in the PA subjects (T/T, n=42 vs T/C&C/C, n=31; 4.0 vs 4.6 mmol/L; P<.001). The minor G variant at HSD11B1 was associated with lower plasma triglyceride concentration in the controls (T/T, n=65 vs T/G&G/G, n=32; 0.61 vs 0.49 mmol/L; P=.013). Common polymorphisms at POR, SULT2A1 or HSD11B1 were not associated with PA in a Finnish Caucasian population.
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Affiliation(s)
- Pauliina Utriainen
- Department of Pediatrics, Kuopio University Hospital and University of Eastern Finland P.O. Box 1777, FI-70211 Kuopio, Finland.
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15
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Kumar KVSH, Shaikh A. Precocious pubarche in a young boy-unusual etiology. Indian J Endocrinol Metab 2012; 16:862-863. [PMID: 23087889 PMCID: PMC3475929 DOI: 10.4103/2230-8210.100693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- K. V. S. Hari Kumar
- Department of Endocrinology, Command Hospital, Lucknow, Uttar Pradesh, India
| | - Altamash Shaikh
- INDU Clinic, Royal Terrace, 58, Wodehouse Road, Colaba, Mumbai, India
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Idkowiak J, Lavery GG, Dhir V, Barrett TG, Stewart PM, Krone N, Arlt W. Premature adrenarche: novel lessons from early onset androgen excess. Eur J Endocrinol 2011; 165:189-207. [PMID: 21622478 DOI: 10.1530/eje-11-0223] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Adrenarche reflects the maturation of the adrenal zona reticularis resulting in increased secretion of the adrenal androgen precursor DHEA and its sulphate ester DHEAS. Premature adrenarche (PA) is defined by increased levels of DHEA and DHEAS before the age of 8 years in girls and 9 years in boys and the concurrent presence of signs of androgen action including adult-type body odour, oily skin and hair and pubic hair growth. PA is distinct from precocious puberty, which manifests with the development of secondary sexual characteristics including testicular growth and breast development. Idiopathic PA (IPA) has long been considered an extreme of normal variation, but emerging evidence links IPA to an increased risk of developing the metabolic syndrome (MS) and thus ultimately cardiovascular morbidity. Areas of controversy include the question whether IPA in girls is associated with a higher rate of progression to the polycystic ovary syndrome (PCOS) and whether low birth weight increases the risk of developing IPA. The recent discoveries of two novel monogenic causes of early onset androgen excess, apparent cortisone reductase deficiency and apparent DHEA sulphotransferase deficiency, support the notion that PA may represent a forerunner condition for PCOS. Future research including carefully designed longitudinal studies is required to address the apparent link between early onset androgen excess and the development of insulin resistance and the MS.
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Affiliation(s)
- Jan Idkowiak
- School of Clinical and Experimental Medicine, Centre for Endocrinology, Diabetes and Metabolism, University of Birmingham, Birmingham B15 2TT, UK
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Larqué E, Gil-Campos M, Villada I, Ramírez-Tortosa MC, Cañete R, Gil A. Postprandial plasma adiponectin response is reduced in prepubertal premature pubarche girls. Metabolism 2010; 59:1319-26. [PMID: 20096425 DOI: 10.1016/j.metabol.2009.12.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Revised: 10/20/2009] [Accepted: 12/10/2009] [Indexed: 01/25/2023]
Abstract
The association between premature pubarche (PP) and metabolic syndrome is controversial and not supported by some authors. The aim of this study was to determine insulin resistance syndrome, plasma adiponectin, and fatty acid profile in PP girls to discern potential confounder variables and markers of metabolic disturbances. We studied 22 prepubertal girls with a diagnosis of PP and 20 healthy controls who differed in body mass index (BMI) (19.33 +/- 0.71 vs 17.30 +/- 0.60). We evaluated insulin resistance syndrome components and postprandial response of adiponectin, nonesterified fatty acids, and fatty acid profile after consumption of a standardized breakfast. No lipid disturbances were detected in the PP group. High-density lipoprotein to low-density lipoprotein cholesterol ratio tended to be lower in PP girls (P = .052), but this effect disappeared when data were adjusted for both BMI and age (P = .480). Insulin levels tended to be higher at 2 hours in PP girls, who showed significantly higher C-peptide area under the curve. In contrast, adiponectin at 3 hours after the meal and postprandial adiponectin area under the curve were significantly lower. The PP girls showed significantly higher percentages of eicosapentaenoic acid in total plasma and plasma phospholipids. No differences were found in the postprandial fatty acid clearance rate. In conclusion, PP girls and controls differed in postprandial plasma adiponectin response and in postprandial plasma C-peptide response after both BMI and age adjustment. Cholesterol plasma disturbances were mainly attributable to their higher BMI, although n-3 polyunsaturated fatty acids were higher because of the PP.
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Affiliation(s)
- Elvira Larqué
- Department of Physiology, Faculty of Biology, University of Murcia, Murcia 30100, Spain
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Utriainen P, Jääskeläinen J, Gröhn O, Kuusisto J, Pulkki K, Voutilainen R. Circulating TNF-Alpha and IL-6 Concentrations and TNF-Alpha -308 G > A Polymorphism in Children with Premature Adrenarche. Front Endocrinol (Lausanne) 2010; 1:6. [PMID: 22654787 PMCID: PMC3356042 DOI: 10.3389/fendo.2010.00006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Accepted: 11/09/2010] [Indexed: 01/01/2023] Open
Abstract
Premature adrenarche (PA), the early rise in adrenal androgen production leading to prepubertal signs of androgen action, has been connected with adverse metabolic features. The metabolic syndrome is characterized by low-grade inflammation which in turn is associated with increases in circulating proinflammatory cytokines, like tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6). We tested the hypothesis that serum concentrations of TNF-α and IL-6 are increased in PA by studying 73 children with PA and 98 age- and gender-matched controls. Serum TNF-α and IL-6 concentrations were measured using a multiplex bead array. The subjects were genotyped for the TNF-α gene -308 G > A polymorphism (known to affect TNF-α gene transcription), and genotype-phenotype associations were studied. The mean serum TNF-α concentration was higher in the PA than control children (20.4 vs. 18.4 pg/ml, P = 0.048), whereas there was no significant difference in the mean serum IL-6 concentrations between the study groups. The difference in TNF-α was not explained by excess body weight in the PA subjects as the difference remained significant after BMI-adjustment (P = 0.038). In the PA group, TNF-α concentration was not associated with metabolic-endocrine features, but high IL-6 was associated with lower birth weight. There was no difference in the genotype distribution of the TNF-α gene -308 G > A polymorphism between the PA and control groups. In conclusion, PA was associated with increased serum TNF-α concentrations which, unexpectedly, were not connected with BMI or insulin resistance. The TNF-α gene -308 G > A polymorphism does not seem to be associated with the development of PA.
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Affiliation(s)
- Pauliina Utriainen
- Department of Pediatrics, Kuopio University Hospital and University of Eastern FinlandKuopio, Finland
| | - Jarmo Jääskeläinen
- Department of Pediatrics, Kuopio University Hospital and University of Eastern FinlandKuopio, Finland
| | - Oskari Gröhn
- Department of Clinical Chemistry, Eastern Finland Laboratory Centre, University of Eastern FinlandKuopio, Finland
| | - Johanna Kuusisto
- Department of Medicine, Kuopio University Hospital and University of Eastern FinlandKuopio, Finland
| | - Kari Pulkki
- Department of Clinical Chemistry, Eastern Finland Laboratory Centre, University of Eastern FinlandKuopio, Finland
| | - Raimo Voutilainen
- Department of Pediatrics, Kuopio University Hospital and University of Eastern FinlandKuopio, Finland
- *Correspondence: Raimo Voutilainen, Department of Pediatrics, Kuopio University Hospital and University of Eastern Finland, P.O. Box 1777, FI-70211 Kuopio, Finland. e-mail:
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Park YJ, Moon CM, Yoo HJ. A study of factors influencing advanced puberty. KOREAN JOURNAL OF PEDIATRICS 2010. [DOI: 10.3345/kjp.2010.53.2.146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Yong Jun Park
- Department of Pediatrics, College of Medicine, Kwandong University, Goyang, Korea
| | - Chang Min Moon
- Department of Pediatrics, College of Medicine, Kwandong University, Goyang, Korea
| | - Hwang Jae Yoo
- Department of Pediatrics, College of Medicine, Kwandong University, Goyang, Korea
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Jean AM, Hassoun A, Hughes J, Pomeranz C, Fennoy I, Oberfield SE, McMahon DJ. Utility of early insulin response and proinsulin to assess insulin resistance. J Pediatr 2009; 155:893-9. [PMID: 19643436 PMCID: PMC2823814 DOI: 10.1016/j.jpeds.2009.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 05/07/2009] [Accepted: 06/01/2009] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To determine whether obesity and premature adrenarche are additive events increasing the risk of insulin resistance and beta-cell failure, using early insulin response (EIR) or the insulinogenic index and proinsulin (PI) as markers. STUDY DESIGN This was a prospective case-control study conducted at a tertiary care academic medical center involving 81 prepubertal, predominantly Hispanic children (34 males, 47 females), classified as lean controls (4 males, 6 females; mean age, 6.5 +/- 1.2 years; mean body mass index [BMI] z-score, 0.08 +/- 0.6), obese controls (20 males, 10 females; mean age, 7.2 +/- 1.5 years; mean BMI z-score, 2.5 +/- 0.5), lean premature adrenarche (3 males, 11 females; mean age, 7.1 +/- 1.2 years; mean BMI z-score, 0.09 +/- 0.6), and obese premature adrenarche (7 males, 20 females; mean age, 7.3 +/- 1.0; mean BMI z-score, 2.2 +/- 0.4). Fasting glucose (G(0)), insulin (I(0)), PI(0), androgen levels, insulin-like growth factor 1, insulin-like growth factor binding protein 1, and lipid levels were obtained. An oral glucose tolerance test was performed. EIR was calculated as (I(30) - I(0))/(G(30) - G(0)). Between-group differences were assessed by 2-way analysis of variance, with interactions and associations explored with correlation/regression. RESULTS EIR was greater in the obese subjects with and without premature adrenarche. Combined analysis of the independent variables obesity and premature adrenarche showed that the obese premature adrenarche group had the highest EIR. The obese subjects with premature adrenarche had greater fasting PI levels than their lean counterparts. The differences in fasting PI/I ratio among the groups were not statistically significant. CONCLUSIONS Using EIR and PI as markers to assess the risk of insulin resistance and impaired insulin secretion indicates that obese children with premature adrenarche may be at greater risk for the development of prediabetes and type 2 diabetes mellitus compared with their lean counterparts.
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Affiliation(s)
- Amy M. Jean
- Department of Pediatrics, Division of Pediatric Endocrinology, Columbia University
| | - Abeer Hassoun
- Department of Pediatrics, Division of Pediatric Endocrinology, Columbia University
| | - Jennifer Hughes
- Department of Pediatrics, Division of Pediatric Endocrinology, Columbia University
| | - Christy Pomeranz
- Department of Pediatrics, Division of Pediatric Endocrinology, Columbia University
| | - Ilene Fennoy
- Department of Pediatrics, Division of Pediatric Endocrinology, Columbia University
| | - Sharon E. Oberfield
- Department of Pediatrics, Division of Pediatric Endocrinology, Columbia University
| | - Donald J. McMahon
- Department of Medicine, Division of Endocrinology, Columbia University
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