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Rebollar-Vega RG, Zuarth-Vázquez JM, Hernández-Ramírez LC. Clinical Spectrum of USP8 Pathogenic Variants in Cushing's Disease. Arch Med Res 2023; 54:102899. [PMID: 37925320 DOI: 10.1016/j.arcmed.2023.102899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 11/06/2023]
Abstract
Cushing's disease (CD) is a life-threatening condition with a challenging diagnostic process and scarce treatment options. CD is caused by usually benign adrenocorticotrophic hormone (ACTH)-secreting pituitary neuroendocrine tumors (PitNETs), known as corticotropinomas. These tumors are predominantly of sporadic origin, and usually derive from the monoclonal expansion of a mutated cell. Somatic activating variants located within a hotspot of the USP8 gene are present in 11-62% of corticotropinomas, making USP8 the most frequent genetic driver of corticotroph neoplasia. In contrast, other somatic defects such as those affecting the glucocorticoid receptor gene (NR3C1), the BRAF oncogene, the deubiquitinase-encoding gene USP48, and TP53 are infrequent. Moreover, patients with familial tumor syndromes, such as multiple endocrine neoplasia, familial isolated pituitary adenoma, and DICER1 rarely develop corticotropinomas. One of the main molecular alterations in USP8-driven tumors is an overactivation of the epidermal growth factor receptor (EGFR) signaling pathway, which induces ACTH production. Hotspot USP8 variants lead to persistent EGFR overexpression, thereby perpetuating the hyper-synthesis of ACTH. More importantly, they condition a characteristic transcriptomic signature that might be useful for the clinical prognosis of patients with CD. Nevertheless, the clinical phenotype associated with USP8 variants is less well defined. Hereby we discuss the current knowledge on the molecular pathogenesis and clinical picture associated with USP8 hotspot variants. We focus on the potential significance of the USP8 mutational status for the design of tailored clinical strategies in CD.
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Affiliation(s)
- Rosa G Rebollar-Vega
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica, Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Julia M Zuarth-Vázquez
- Department of Endocrinology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Laura C Hernández-Ramírez
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica, Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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Yami Channaiah C, Memon SS, Sarathi V, Lila AR, Sankhe S, Arya S, Karlekar M, Patil VA, Shah N, Bandgar T. Pediatric Macrocorticotropinoma: Do They Differ from Microcorticotropinoma? Neuroendocrinology 2023; 114:42-50. [PMID: 37634509 DOI: 10.1159/000533770] [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: 10/04/2022] [Accepted: 11/29/2022] [Indexed: 08/29/2023]
Abstract
INTRODUCTION Cushing's disease (CD) due to macrocorticotropinoma (MC) in children and adolescents is a rare entity with limited information regarding its characteristics. The objective of the study is to describe the clinical, biochemical, imaging, management, outcome, and genetic characteristics of children and adolescents with CD due to MC and compare them with those of microcorticotropinoma (mc). METHODS This retrospective study was conducted at a single tertiary care center. Thirty-two patients with CD and MC (maximum tumor dimension ≥10 mm on imaging) and 65 patients with mc (<10 mm on imaging) aged ≤20 years at presentation were enrolled. RESULTS Nineteen girls and 13 boys with MC presented at a median (IQR) age of 14.5 (12.0-17.9) years. Patients with MC had higher body mass index-standard deviation score (BMI-SDS) (3.70 ± 2.60 vs. 2.59 ± 2.01, p = 0.04), more frequent neuro-ophthalmic symptoms (25% vs. 9% p = 0.04) and short stature (59% vs. 34%, p = 0.049) but less frequent livid striae (53% vs. 77%, p = 0.01), hypokalemia (12% vs. 36%, p = 0.04), and lower cortisol (nmol/L) to corticotropin (pmol/L) ratio (41.20 vs. 55.74, p = 0.04) than those with mc. The remission (59% vs. 64%, p = 1.0) and relapse (53% vs. 37%, p = 0.26) rates after first-line surgery and remission rate after radiotherapy (RT) were comparable between the two cohorts, whereas time to remission after RT (27 vs. 13 months, p = 0.05) was longer in the MC group. A patient with MC had a pathogenic germline variant in CDH23. CONCLUSION In this large monocentric series of pediatric CD, frequent mass effect symptoms and short stature, higher BMI-SDS, less frequent livid striae, and hypokalemia with lower effective cortisol secretion characterize the MC cohort. The outcomes of surgery and RT were similar between the groups except for a longer time to remission after RT in the MC cohort. Germline variants are rare (4%) in pediatric MC.
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Affiliation(s)
| | - Saba Samad Memon
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Mumbai, India
| | - Vijaya Sarathi
- Department of Endocrinology, Vydehi Institute of Medical Sciences and Research Centre, Bengaluru, India
| | - Anurag Ranjan Lila
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Mumbai, India
| | - Shilpa Sankhe
- Department of Radiology, Seth GS Medical College and KEM Hospital, Mumbai, India
| | - Sneha Arya
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Mumbai, India
| | - Manjiri Karlekar
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Mumbai, India
| | | | - Nalini Shah
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Mumbai, India
| | - Tushar Bandgar
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Mumbai, India
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Concepción-Zavaleta MJ, Armas CD, Quiroz-Aldave JE, García-Villasante EJ, Gariza-Solano AC, Durand-Vásquez MDC, Concepción-Urteaga LA, Zavaleta-Gutiérrez FE. Cushing disease in pediatrics: an update. Ann Pediatr Endocrinol Metab 2023; 28:87-97. [PMID: 37401055 DOI: 10.6065/apem.2346074.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/22/2023] [Indexed: 07/05/2023] Open
Abstract
Cushing disease (CD) is the main cause of endogenous Cushing syndrome (CS) and is produced by an adrenocorticotropic hormone (ACTH)-producing pituitary adenoma. Its relevance in pediatrics is due to the retardation of both growth and developmental processes because of hypercortisolism. In childhood, the main features of CS are facial changes, rapid or exaggerated weight gain, hirsutism, virilization, and acne. Endogenous hypercortisolism should be established after exogenous CS has been ruled out based on 24-hour urinary free cortisol, midnight serum or salivary cortisol, and dexamethasone suppression test; after that, ACTH dependence should be established. The diagnosis should be confirmed by pathology. The goal of treatment is to normalize cortisol level and reverse the signs and symptoms. Treatment options include surgery, medication, radiotherapy, or combined therapy. CD represents a challenge for physicians owing to its multiple associated conditions involving growth and pubertal development; thus, it is important to achieve an early diagnosis and treatment in order to control hypercortisolism and improve the prognosis. Its rarity in pediatric patients has led physicians to have limited experience in its management. The objective of this narrative review is to summarize the current knowledge about the pathophysiology, diagnosis, and treatment of CD in the pediatric population.
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Castillo-Huerta NM, Carassa de la Cruz JI, Quispe-Garate L, Lévano-Martínez MA, Cabrera BM, Sheen EC. Neurosurgical aspects and clinical outcomes on the treatment of Cushing disease in pediatric patients: Case series and literature review. Surg Neurol Int 2023; 14:123. [PMID: 37151460 PMCID: PMC10159280 DOI: 10.25259/sni_64_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/16/2023] [Indexed: 05/09/2023] Open
Abstract
Background Cushing disease (CD) is a state of hypercortisolism caused by an adrenocorticotropic hormone-(ACTH) producing pituitary adenoma which rarely occurs in pediatric patients. The outstanding features are weight gain and growth retardation. However, the insidious onset and rarity of the disease in children and adolescents often result in delayed diagnosis. Case Description We present five patients <14 years of age who underwent neurosurgical treatment for CD at the Department of Neurosurgery of a public referral hospital in Lima, Peru. Age at diagnosis ranged from 5.5 to 12.5 years with a history of disease from 9 months to 3.5 years of moderate to severe stunting and obesity, among other features of Cushing syndrome (CS). Although biochemical tests and cerebral imaging were crucial for the diagnosis, confirmation was made by bilateral petrosal sinuous sampling. Regarding treatment, three patients underwent transcranial surgery, one patient underwent endoscopic transsphenoidal surgery, and one patient underwent microscopic transsphenoidal surgery. None of the patients underwent radiotherapy or pharmacological treatment. Only one patient had a recurrence and achieved remission until an endoscopic transsphenoidal approach was performed. Short- and long-term endocrinologic follow-up is also described in detail. Conclusion CD is a heterogeneous disorder that requires multidisciplinary diagnosis and management. Transsphenoidal selective adenomectomy is the optimal treatment because of its higher remission rates. However, technical and anatomic aspects should be considered in pediatric patients.
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Affiliation(s)
- Nicole M. Castillo-Huerta
- School of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru
- Corresponding author: Nicole M. Castillo-Huerta, School of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru.
| | | | - Luz Quispe-Garate
- School of Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | | | - Bianca Miranda Cabrera
- Department of Pediatric Endocrinology, Hospital Nacional Edgardo Rebagliati Martins, Lima, Peru
| | - Erick Custodio Sheen
- Department of Pediatric Neurosurgery, Hospital Nacional Edgardo Rebagliati Martins, Lima, Peru
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Abstract
Artificial intelligence (AI) has illuminated a clear path towards an evolving health-care system replete with enhanced precision and computing capabilities. Medical imaging analysis can be strengthened by machine learning as the multidimensional data generated by imaging naturally lends itself to hierarchical classification. In this Review, we describe the role of machine intelligence in image-based endocrine cancer diagnostics. We first provide a brief overview of AI and consider its intuitive incorporation into the clinical workflow. We then discuss how AI can be applied for the characterization of adrenal, pancreatic, pituitary and thyroid masses in order to support clinicians in their diagnostic interpretations. This Review also puts forth a number of key evaluation criteria for machine learning in medicine that physicians can use in their appraisals of these algorithms. We identify mitigation strategies to address ongoing challenges around data availability and model interpretability in the context of endocrine cancer diagnosis. Finally, we delve into frontiers in systems integration for AI, discussing automated pipelines and evolving computing platforms that leverage distributed, decentralized and quantum techniques.
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Affiliation(s)
| | - Ihab R Kamel
- Department of Imaging & Imaging Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Harrison X Bai
- Department of Imaging & Imaging Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Ioachimescu AG, Goswami N, Handa T, Pappy A, Veledar E, Oyesiku NM. Racial Disparities in Acromegaly and Cushing's Disease: A Referral Center Study in 241 Patients. J Endocr Soc 2022; 6:bvab176. [PMID: 34934883 PMCID: PMC8677529 DOI: 10.1210/jendso/bvab176] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Indexed: 11/19/2022] Open
Abstract
Context Acromegaly (ACM) and Cushing’s disease (CD) are caused by functioning pituitary adenomas secreting growth hormone and ACTH respectively. Objective To determine the impact of race on presentation and postoperative outcomes in adults with ACM and CD, which has not yet been evaluated. Methods This is a retrospective study of consecutive patients operated at a large-volume pituitary center. We evaluated (1) racial distribution of patients residing in the metropolitan area (Metro, N = 124) vs 2010 US census data, and(2) presentation and postoperative outcomes in Black vs White for patients from the entire catchment area (N = 241). Results For Metro area (32.4% Black population), Black patients represented 16.75% ACM (P = .006) and 29.2% CD (P = .56). Among the total 112 patients with ACM, presentations with headaches or incidentaloma were more common in Black patients (76.9% vs 31% White, P = .01). Black patients had a higher prevalence of diabetes (54% vs 16% White, P = .005), significantly lower insulin-like growth factor (IGF)-1 deviation from normal (P = .03) and borderline lower median growth hormone levels (P = .09). Mean tumor diameter and proportion of tumors with cavernous sinus invasion were similar. Three-month biochemical remission (46% Black, 55% White, P = .76) and long-term IGF-1 control by multimodality therapy (92.3% Black, 80.5% White, P = .45) were similar. Among the total 129 patients with CD, Black patients had more hypopituitarism (69% vs 45% White, P = .04) and macroadenomas (33% vs 15% White, P = .05). At 3 months, remission rate was borderline higher in White (92% vs 78% Black, P = 0.08), which was attributed to macroadenomas by logistic regression. Conclusion We identified disparities regarding racial distribution, and clinical and biochemical characteristics in ACM, suggesting late or missed diagnosis in Black patients. Large nationwide studies are necessary to confirm our findings.
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Affiliation(s)
- Adriana G Ioachimescu
- Department of Medicine (Endocrinology), Emory School of Medicine, Atlanta, GA 30322, USA.,Department of Neurosurgery, Emory School of Medicine, Atlanta, GA 30322, USA
| | - Neevedita Goswami
- Department of Neurosurgery, Emory School of Medicine, Atlanta, GA 30322, USA
| | - Talin Handa
- UCF College of Medicine, Orlando, FL 32827, USA
| | - Adlai Pappy
- Brigham and Women's Hospital Department of Anesthesiology and Pain Medicine, Boston, MA 02115, USA
| | - Emir Veledar
- Baptist Health South Florida, Coral Gables FL 33146, USA
| | - Nelson M Oyesiku
- Department of Medicine (Endocrinology), Emory School of Medicine, Atlanta, GA 30322, USA.,Department of Neurosurgery, Emory School of Medicine, Atlanta, GA 30322, USA
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Ferrigno R, Hasenmajer V, Caiulo S, Minnetti M, Mazzotta P, Storr HL, Isidori AM, Grossman AB, De Martino MC, Savage MO. Paediatric Cushing's disease: Epidemiology, pathogenesis, clinical management and outcome. Rev Endocr Metab Disord 2021; 22:817-835. [PMID: 33515368 PMCID: PMC8724222 DOI: 10.1007/s11154-021-09626-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/05/2021] [Indexed: 12/12/2022]
Abstract
Cushing's disease (CD) is rare in paediatric practice but requires prompt investigation, diagnosis and therapy to prevent long-term complications. Key presenting features are a change in facial appearance, weight gain, growth failure, virilization, disturbed puberty and psychological disturbance. Close consultation with an adult endocrinology department is recommended regarding diagnosis and therapy. The incidence of CD, a form of ACTH-dependent Cushing's syndrome (CS), is equal to approximately 5% of that seen in adults. The majority of ACTH-secreting adenomas are monoclonal and sporadic, although recent studies of pituitary tumours have shown links to several deubiquitination gene defects. Diagnosis requires confirmation of hypercortisolism followed by demonstration of ACTH-dependence. Identification of the corticotroph adenoma by pituitary MRI and/or bilateral inferior petrosal sampling for ACTH may contribute to localisation before pituitary surgery. Transsphenoidal surgery (TSS) with selective microadenomectomy is first-line therapy, followed by external pituitary irradiation if surgery is not curative. Medical therapy to suppress adrenal steroid synthesis is effective in the short-term and bilateral adrenalectomy should be considered in cases unfit for TSS or radiotherapy or when urgent remission is needed after unsuccessful surgery. TSS induces remission of hypercortisolism and improvement of symptoms in 70-100% of cases, particularly when performed by a surgeon with experience in children. Post-TSS complications include pituitary hormone deficiencies, sub-optimal catch-up growth, and persisting excess of BMI. Recurrence of hypercortisolism following remission is recognised but infrequent, being less common than in adult CD patients. With experienced specialist medical and surgical care, the overall prognosis is good. Early referral to an experienced endocrine centre is advised.
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Affiliation(s)
- Rosario Ferrigno
- Dipartimento di Medicina Clinica e Chirurgia, Federico II University, Naples, Italy
| | - Valeria Hasenmajer
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Silvana Caiulo
- Primary care Paediatrician, Local Health Unit of Brindisi, Brindisi, Italy
| | - Marianna Minnetti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Paola Mazzotta
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Helen L Storr
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine & Dentistry, London, UK
| | - Andrea M Isidori
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Ashley B Grossman
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine & Dentistry, London, UK
- Royal Free Hospital ENETs Centre of Excellence, London, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | | | - Martin O Savage
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine & Dentistry, London, UK.
- Centre for Endocrinology, William Harvey Research Institute, Charterhouse Square, London, EC1M 6BQ, UK.
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Lechtholz-Zey E, Bonney PA, Cardinal T, Mendoza J, Strickland BA, Pangal DJ, Giannotta S, Durham S, Zada G. Systematic Review of Racial, Socioeconomic, and Insurance Status Disparities in the Treatment of Pediatric Neurosurgical Diseases in the United States. World Neurosurg 2021; 158:65-83. [PMID: 34718199 DOI: 10.1016/j.wneu.2021.10.150] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Increasing light is being shed on how race, insurance, and socioeconomic status (SES) may be related to outcomes from disease in the United States. To better understand the impact of these health care disparities in pediatric neurosurgery, we performed a systematic review of the literature. METHODS We conducted a systematic review using PRISMA guidelines and MeSH terms involving neurosurgical conditions and racial, ethnic, and SES disparities. Three independent reviewers screened articles and analyzed texts selected for full analysis. RESULTS Thirty-eight studies were included in the final analysis, of which all but 2 were retrospective database reviews. Thirty-four studies analyzed race, 22 analyzed insurance status, and 13 analyzed SES/income. Overall, nonwhite patients, patients with public insurance, and patients from lower SES were shown to have reduced access to treatment and greater rates of adverse outcomes. Nonwhite patients were more likely to present at an older age with more severe disease, less likely to undergo surgery at a high-volume surgical center, and more likely to experience postoperative morbidity and mortality. Underinsured and publicly insured patients were more likely to experience delay in surgical referral, less likely to undergo surgical treatment, and more likely to experience inpatient mortality. CONCLUSIONS Health care disparities are present within multiple populations of patients receiving pediatric neurosurgical care. This review highlights the need for continued investigation into identifying and addressing health care disparities in pediatric neurosurgery patients.
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Affiliation(s)
- Elizabeth Lechtholz-Zey
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Phillip A Bonney
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Tyler Cardinal
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA.
| | - Jesse Mendoza
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Ben A Strickland
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Dhiraj J Pangal
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Steven Giannotta
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Susan Durham
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA; Division of Neurosurgery, Children's Hospital Los Angeles, Los Angeles, California, USA
| | - Gabriel Zada
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
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Racial and ethnic disparities among children with primary central nervous system tumors in the US. J Neurooncol 2021; 152:451-466. [PMID: 33774801 DOI: 10.1007/s11060-021-03738-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/12/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Primary central nervous system (CNS) tumors are among the most common and lethal types of cancer in children. However, the existence of health disparities in CNS tumors by race or ethnicity remains poorly understood. This systematic review sought to determine whether racial and ethnic disparities in incidence, healthcare access, and survival exist among pediatric patients diagnosed with CNS tumors. METHODS A search of MEDLINE, Embase, CINAHL, Web of Science, and Scopus was conducted. Inclusion criteria selected for studies published between January 1, 2005 and July 15, 2020 that focused on pediatric populations in the US, evaluated for potential differences based on racial or ethnic backgrounds, and focused on CNS tumors. A standardized study form was used to collect study information, population of interest, research design, and quality of analysis, sample size, participant demographics, pathology evaluated, and incidence or outcomes observed. RESULTS A total of 30 studies were inlcuded. Studies suggest White children may be more likely to be diagnosed with a CNS tumor and Hispanic children to present with advanced-stage disease and have worse outcomes. The degree of influence derived from socioeconomic factors is unclear. This review was limited by few available studies that included race and ethnicity as a variable, the overlap in databases used, and unclear categorization of race and ethnicity. CONCLUSIONS This review identified notable and at times contradicting variations in racial/ethnic disparities among children with CNS tumors, suggesting that the extent of these disparities remains largely unknown and prompts further research to improve health equity.
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Etiology-, Sex-, and Tumor Size-Based Differences in Adrenocorticotropin-Dependent Cushing Syndrome. Endocr Pract 2020; 27:471-477. [PMID: 33853717 DOI: 10.1016/j.eprac.2020.11.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/31/2020] [Accepted: 11/12/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To examine demographic, clinical, and biochemical differences in patients with adrenocorticotropin (ACTH)-dependent Cushing syndrome (CS) based on etiology, sex, and tumor size. METHODS This was a single-center study of 211 patients with ACTH-dependent CS followed for 35 years. Patients were stratified into 3 groups based on etiology: Cushing disease (CD)/transsphenoidal surgery, Cushing disease/total bilateral adrenalectomy (CD/TBA), and ectopic ACTH secretion (EAS). Patients were also stratified based on sex and tumor size (nonvisualized, microadenoma, and macroadenoma). RESULTS CD was the commonest cause of ACTH-dependent CS (190; 90%). Most patients presented in the third decade (median age, 29 years). Clinical features, cortisol, and ACTH were significantly greater in the EAS group. The CD/TBA group had more nonvisualized tumors (22% vs 8%; P = .000) and smaller tumor size (4 vs 6 mm; P = .001) compared with the CD/transsphenoidal surgery group. There was female predominance in CD (2.06:1) and male predominance in EAS (2:1). Men had shorter duration of symptoms (2 years; P = .014), were younger (23 years; P = .001), had lower body mass index (25.1 kg/m2; P = .000), and had more severe disease (low bone mineral density, hypokalemia). Macroadenomas were frequent (46; 24.2%), and ACTH correlated with tumor size in CD (r = 0.226; P = .005). CONCLUSION Our cohort presented at an earlier age than the Western population with a distinct, but slightly lower, female predilection. Patients with CD undergoing TBA had frequent negative imaging. Men had a clinical profile suggesting aggressive disease. Microadenoma and macroadenoma were difficult to distinguish on a clinicobiochemical basis.
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Schey C, Postma M, Krabbe P, Medic G, Connolly M. The application of multi-criteria decision analysis to inform in resource allocation. F1000Res 2020. [DOI: 10.12688/f1000research.21728.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Background: There is a perception held by payers that orphan products are expensive. As a result, the current health technology assessment systems might be too restrictive for orphan drugs, therefore potentially denying patients access to life-saving medicines. While price is important, it should be considered in relation to a broader range of disease-related product attributes that are not necessarily considered by many health technology assessment agencies. To overcome these challenges, multi-criteria decision analysis has been proposed as an alternative to evaluate technologies. Methods: A targeted literature review was conducted to identify the most frequently cited attributes in multi-criteria decision analysis (MCDA) in rare diseases. From the leading attributes identified, we developed a multi-criteria decision analysis framework with which to aggregate the orphan drug values. We subsequently reviewed and plotted the relationship between single attributes and the average annual treatment costs for 8 drugs used in the treatment of rare endocrine diseases. The annual treatment costs were based on UK list prices for the average daily dose per patient. Results: The five most frequently mentioned attributes in the literature were as follows: Disease severity, Unmet need (or availability of therapeutic alternatives), Comparative effectiveness or efficacy, Quality of evidence and Safety & tolerability. Results from the multi-criteria decision analysis framework indicate a wide range of average annual per-patients costs for drugs intended for the same diseases, and likewise for diseases with a similar level of Disease severity. Conclusions: Multi-criteria decision analysis may offer a viable alternative to support discussion in reimbursement decisions for orphan drugs. The analyses can be used to inform investigations on the application of MCDAs in rare diseases.
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Minnetti M, Caiulo S, Ferrigno R, Baldini-Ferroli B, Bottaro G, Gianfrilli D, Sbardella E, De Martino MC, Savage MO. Abnormal linear growth in paediatric adrenal diseases: Pathogenesis, prevalence and management. Clin Endocrinol (Oxf) 2020; 92:98-108. [PMID: 31747461 DOI: 10.1111/cen.14131] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/10/2019] [Accepted: 11/18/2019] [Indexed: 12/13/2022]
Abstract
Abnormal adrenal function can interfere with linear growth, potentially causing either acceleration or impairment of growth in paediatric patients. These abnormalities can be caused by direct effects of adrenal hormones, particularly glucocorticoids and sex steroids, or be mediated by indirect mechanisms such as the disturbance of the growth hormone-insulin-like growth factor-1 axis and aromatization of androgens to oestrogens. The early diagnosis and optimal treatment of adrenal disorders can prevent or minimize growth disturbance and facilitate improved height gain. Mechanisms of growth disturbance in the following abnormal states will be discussed; hypercortisolaemia, hyperandrogenaemia and obesity. Prevalence and features of growth disturbance will be discussed in ACTH-dependent and ACTH-independent Cushing's syndrome, adrenocortical tumours, premature adrenarche, congenital adrenal hyperplasia and adrenal insufficiency disorders. Recommendations for management have been included.
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Affiliation(s)
- Marianna Minnetti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Silvana Caiulo
- Department of Pediatrics, IRCCS San Raffaele Hospital, Milan, Italy
| | - Rosario Ferrigno
- Dipartimento di Medicina Clinica e Chirurgia, Federico II University, Naples, Italy
| | - Barbara Baldini-Ferroli
- Dipartimento Pediatrico Universitario Ospedaliero, Bambino Gesu' Children's Hospital, Rome, Italy
| | - Giorgia Bottaro
- Dipartimento Pediatrico Universitario Ospedaliero, Bambino Gesu' Children's Hospital, Rome, Italy
| | - Daniele Gianfrilli
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Emilia Sbardella
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Martin O Savage
- Endocrinology Centre, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, London, UK
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Makri A, Cheung A, Sinaii N, Remaley AT, Sampson M, Keil M, Belyavskaya E, Lyssikatos C, De La Luz Sierra M, Stratakis CA, Lodish M. Lipoprotein particles in patients with pediatric Cushing disease and possible cardiovascular risks. Pediatr Res 2019; 86:375-381. [PMID: 31112990 PMCID: PMC6702083 DOI: 10.1038/s41390-019-0438-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/06/2019] [Accepted: 05/11/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND Cardiovascular (CV) complications are the most significant cause of mortality in adults with Cushing disease (CD); little is known about CV risk factors in children with CD. Measurement of lipoprotein particles by nuclear magnetic resonance (NMR) spectroscopy is a novel technology to assess CV risk. The objective of the current study is to analyze the NMR lipid profile in pediatric CD patients before and 1 year after remission. METHODS NMR lipid profile was obtained via the Vantera NMR analyzer, using frozen serum samples from 33 CD patients (mean age 13.8 ± 4.0 years) evaluated between 1997 and 2017 at the National Institutes of Health (NIH) Clinical Center (CC). RESULTS GlycA (glycosylated acute-phase proteins), triglyceride-rich particles (TRLP medium and very small sizes), low-density lipoprotein (LDL) particles (LDLP total and large size), high-density lipoprotein (HDL) particles (HDLP total, medium and small sizes), total cholesterol, LDL-cholesterol, HDL-cholesterol, GlycA inflammatory biomarker, and apolipoprotein B and apolipoprotein A1 (ApoA1) concentrations showed statistically significant changes after remission of CD (p < 0.05). CONCLUSION In our study population, most of the lipid variables improved post-CD remission, with the exception of HDL and ApoA1, indicating that NMR lipoprotein profile may be a helpful tool in assessing the CV risk in pediatric patients with CD.
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Affiliation(s)
- Angeliki Makri
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, MD, USA.
| | - Anita Cheung
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, Maryland
| | - Ninet Sinaii
- Biostatistics and Clinical Epidemiology Service, National Institutes of Health, Bethesda, Maryland
| | - Alan T. Remaley
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland
| | - Maureen Sampson
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland
| | - Meg Keil
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, Maryland
| | - Elena Belyavskaya
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, Maryland
| | - Charalampos Lyssikatos
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, Maryland
| | - Maria De La Luz Sierra
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, Maryland
| | - Constantine A. Stratakis
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, Maryland
| | - Maya Lodish
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Bethesda, Maryland;,Division of Pediatric Endocrinology, Department of Pediatrics, University of California San Francisco, San Francisco, California
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Tatsi C, Pankratz N, Lane J, Faucz FR, Hernández-Ramírez LC, Keil M, Trivellin G, Chittiboina P, Mills JL, Stratakis CA, Lodish MB. Large Genomic Aberrations in Corticotropinomas Are Associated With Greater Aggressiveness. J Clin Endocrinol Metab 2019; 104:1792-1801. [PMID: 30597087 PMCID: PMC6452317 DOI: 10.1210/jc.2018-02164] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 12/21/2018] [Indexed: 11/19/2022]
Abstract
CONTEXT Genomic losses/gains are associated with cancer progression and prognosis. In pituitary adenomas, analyses of copy number variations (CNVs) have shown that a subset of adenomas have higher genomic variability. However, whether CNVs are associated with tumor aggressiveness and prognosis has not been determined. OBJECTIVE We hypothesized that somatic CNVs of pituitary tumors may play a role in the progression and aggressiveness of pituitary corticotropinomas in children and adolescents. SAMPLES AND DESIGN Paired germline and tumor DNA samples from 27 pediatric patients with Cushing disease (CD), were subjected to whole exome sequencing. Somatic CNVs were identified using the ExomeDepth tool. Clinical, histological, and biochemical data from the patients were collected and correlated with the results of the CNV analysis. RESULTS Chromosomal instability, involving 23% to 59% of the tumor genome, was noted in 5 of the 27 samples (18.5%). The patients with tumors showing chromosomal instability had similar clinical and biochemical characteristics to the remaining patients, except for tumor size, which was larger (median size 18 mm vs 5.5 mm, P = 0.005). Tumors with chromosomal instability were also associated with a higher rate of invasion of the cavernous sinus (P = 0.029). There was insufficient information on persistence or recurrence of CD to determine whether the risk was higher in those with chromosomal instability. CONCLUSIONS A subgroup of corticotropinomas demonstrates chromosomal instability that is associated with markers of aggressiveness of these adenomas. It appears that more genomic gains/losses in a few, rare corticotropinomas may predict poorer prognosis for pediatric patients with CD.
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Affiliation(s)
- Christina Tatsi
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Nathan Pankratz
- Department of Laboratory Medicine and Pathology University of Minnesota Medical School, Minneapolis, Minnesota
| | - John Lane
- Department of Laboratory Medicine and Pathology University of Minnesota Medical School, Minneapolis, Minnesota
| | - Fabio R Faucz
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Laura C Hernández-Ramírez
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Margaret Keil
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Giampaolo Trivellin
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Prashant Chittiboina
- Surgical Neurology Branch, National Institute of Neurologic Disorders and Stroke, National Institutes of Health, Bethesda, Maryland
| | - James L Mills
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institutes of Health, Bethesda, Maryland
| | - Constantine A Stratakis
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
- Correspondence and Reprint Requests: Constantine A. Stratakis, MD, National Institutes of Health, 10 Center Drive, Building 10, NIH-Clinical Research Center, Room 1-3330, MSC1103, Bethesda, Maryland 20892. E-mail:
| | - Maya B Lodish
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
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Blain H, Sinaii N, Zeltser D, Lyssikatos C, Belyavskaya E, Keil M, Bluemke DA, Stratakis C, Bandettini WP, Lodish M. Aortic pulse wave velocity in children with Cushing syndrome: A window into a marker of early cardiovascular disease. Endocrinol Diabetes Metab 2019; 2:e00054. [PMID: 31008362 PMCID: PMC6458483 DOI: 10.1002/edm2.54] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 10/23/2018] [Accepted: 11/23/2018] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE To investigate early signs of cardiovascular arterial remodelling in paediatric patients with Cushing syndrome (CS) in comparison with normative values from healthy children. STUDY DESIGN The metrics used to assess cardiac health were from thoracic aorta and carotid MRI. Scans were performed on 18 children with CS (mean: 12.5 ± 3.1 years, range: 6.0-16.8 years, 10 female). Pulse wave velocity (PWV), aortic distensibility (AD) and carotid intima-media thickness (cIMT), well-validated measurements of cardiac compromise, were measured from the images and compared to normative age-matched values where available. RESULTS Patients with CS had significantly higher PWV compared to age-adjusted normal median control values (4.0 ± 0.7 m/s vs. 3.4 ± 0.2 m/s, respectively, P = 0.0115). PWV was positively correlated with midnight plasma cortisol (r = 0.56, P = 0.02). Internal and common cIMT were negatively correlated with ascending AD (r = -0.75, P = 0.0022, r = -0.69, P = 0.0068, respectively). CONCLUSION Pulse wave velocity data indicate that paediatric patients with CS have early evidence of cardiovascular remodelling. The results suggest the opportunity for monitoring as these changes begin in childhood.
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Affiliation(s)
- Hailey Blain
- Section on Endocrinology and GeneticsEunice Kennedy Shriver National Institute of Child HealthBethesdaMaryland
- Bowdoin CollegeBrunswickMaine
| | - Ninet Sinaii
- Biostatistics and Clinical Epidemiology ServiceNIH Clinical CenterBethesdaMaryland
| | - Deena Zeltser
- Section on Endocrinology and GeneticsEunice Kennedy Shriver National Institute of Child HealthBethesdaMaryland
| | - Charalampos Lyssikatos
- Section on Endocrinology and GeneticsEunice Kennedy Shriver National Institute of Child HealthBethesdaMaryland
| | - Elena Belyavskaya
- Section on Endocrinology and GeneticsEunice Kennedy Shriver National Institute of Child HealthBethesdaMaryland
| | - Margaret Keil
- Section on Endocrinology and GeneticsEunice Kennedy Shriver National Institute of Child HealthBethesdaMaryland
| | - David A. Bluemke
- Radiology and Imaging SciencesNational Institute of Health Clinical CenterBethesdaMaryland
- University of Wisconsin School of Medicine and Public HealthMadisonWisconsin
| | - Constantine Stratakis
- Section on Endocrinology and GeneticsEunice Kennedy Shriver National Institute of Child HealthBethesdaMaryland
| | | | - Maya Lodish
- Section on Endocrinology and GeneticsEunice Kennedy Shriver National Institute of Child HealthBethesdaMaryland
- Department of PediatricsUniversity of CaliforniaSan FranciscoCalifornia
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Goudie C, Hannah-Shmouni F, Kavak M, Stratakis CA, Foulkes WD. 65 YEARS OF THE DOUBLE HELIX: Endocrine tumour syndromes in children and adolescents. Endocr Relat Cancer 2018; 25:T221-T244. [PMID: 29986924 DOI: 10.1530/erc-18-0160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 05/31/2018] [Indexed: 12/16/2022]
Abstract
As medicine is poised to be transformed by incorporating genetic data in its daily practice, it is essential that clinicians familiarise themselves with the information that is now available from more than 50 years of genetic discoveries that continue unabated and increase by the day. Endocrinology has always stood at the forefront of what is called today 'precision medicine': genetic disorders of the pituitary and the adrenal glands were among the first to be molecularly elucidated in the 1980s. The discovery of two endocrine-related genes, GNAS and RET, both identified in the late 1980s, contributed greatly in the understanding of cancer and its progression. The use of RET mutation testing for the management of medullary thyroid cancer was among the first and one of most successful applications of genetics in informing clinical decisions in an individualised manner, in this case by preventing cancer or guiding the choice of tyrosine kinase inhibitors in cancer treatment. New information emerges every day in the genetics or system biology of endocrine disorders. This review goes over most of these discoveries and the known endocrine tumour syndromes. We cover key genetic developments for each disease and provide information that can be used by the clinician in daily practice.
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Affiliation(s)
- Catherine Goudie
- Division of Hematology-OncologyDepartment of Pediatrics, The Hospital for Sick Children, Toronto, Canada
| | - Fady Hannah-Shmouni
- Section on Endocrinology and Genetics The Eunice Kennedy Shriver Institute of Child Health and Human DevelopmentNational Institutes of Health, Bethesda, Maryland, USA
| | - Mahmure Kavak
- Department of Pharmacology and ToxicologyUniversity of Toronto, Toronto, Canada
| | - Constantine A Stratakis
- Section on Endocrinology and Genetics The Eunice Kennedy Shriver Institute of Child Health and Human DevelopmentNational Institutes of Health, Bethesda, Maryland, USA
| | - William D Foulkes
- Department of Human GeneticsResearch Institute of the McGill University Health Centre, and Lady Davis Institute, Jewish General Hospital, McGill University, Montreal, Canada
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Abstract
Cushing syndrome (CS) is a multisystem disorder resulting from the prolonged exposure to excess glucocorticoids. In children, CS most commonly results from the exogenous administration of steroids and the typical presentation is height deceleration concomitant with weight gain. Endogenous and ectopic causes are rare. CS in children may be associated with distinct germline and somatic mutations. Clinical practice guidelines are available assist clinicians. Patients should be referred to multidisciplinary centers of excellence with experience in endocrinology and surgery. Early detection and treatment is essential to reduce associated acute and long-term morbidity and potential death.
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Affiliation(s)
- Maya B Lodish
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), NIH-Clinical Research Center, 10 Center Drive, Building 10, Room 1E-3330, MSC1103, Bethesda, MD 20892, USA
| | - Margaret F Keil
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), NIH-Clinical Research Center, 10 Center Drive, Building 10, Room 1E-3330, MSC1103, Bethesda, MD 20892, USA.
| | - Constantine A Stratakis
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), NIH-Clinical Research Center, 10 Center Drive, Building 10, Room 1E-3330, MSC1103, Bethesda, MD 20892, USA
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18
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Stratakis CA. An update on Cushing syndrome in pediatrics. ANNALES D'ENDOCRINOLOGIE 2018; 79:125-131. [DOI: 10.1016/j.ando.2018.03.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Tatsi C, Stratakis CA. Neonatal Cushing Syndrome: A Rare but Potentially Devastating Disease. Clin Perinatol 2018; 45:103-118. [PMID: 29406000 PMCID: PMC5806137 DOI: 10.1016/j.clp.2017.10.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Neonatal Cushing syndrome (CS) is most commonly caused by exogenous administration of glucocorticoids and rarely by endogenous hypercortisolemia. CS owing to adrenal lesions is the most common cause of endogenous CS in neonates and infants, and adrenocortical tumors (ACTs) represent most cases. Many ACTs develop in the context of a TP53 gene mutation, which causes Li-Fraumeni syndrome. More rarely, neonatal CS presents as part of other syndromes such as McCune-Albright syndrome or Beckwith-Wiedemann syndrome. Management usually includes resection of the primary tumor with or without additional medical treatment, but manifestations may persist after resolution of hypercortisolemia.
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Affiliation(s)
- Christina Tatsi
- Section on Endocrinology & Genetics, Developmental Endocrine Oncology and Genetics Group, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD 20892, USA,Pediatric Endocrinology Inter-institute Training Program, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Constantine A. Stratakis
- Section on Endocrinology & Genetics, Developmental Endocrine Oncology and Genetics Group, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD 20892, USA,Pediatric Endocrinology Inter-institute Training Program, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD 20892, USA
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Raphael JL, Lion KC, Bearer CF. Policy solutions to recruiting and retaining minority children in research. Pediatr Res 2017; 82:180-182. [PMID: 28590464 DOI: 10.1038/pr.2017.119] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 05/03/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Jean L Raphael
- Center for Child Health Policy and Advocacy, Baylor College of Medicine, Houston, Texas
| | - K Casey Lion
- Center for Child Health, Behavior, and Development, Seattle Children's Research Institute, Seattle, Washington
| | - Cynthia F Bearer
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland
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