Hormone Research in Paediatrics最新文献

{"title":"Dietary Components in the Pathogenesis and Prevention of Type 1 Diabetes in Children.","authors":"Vit Neuman, Lukas Plachy, Stepanka Pruhova, Zdenek Sumnik","doi":"10.1159/000539575","DOIUrl":"10.1159/000539575","url":null,"abstract":"<p><strong>Background: </strong>Type 1 diabetes (T1D) is a disease closely linked to nutrition and modifications in various dietary components have been part of the effort to prevent or slow the progression of the disease even before the discovery of insulin.</p><p><strong>Summary: </strong>The scientific focus in the prevention or progression modification of T1D is mostly centered on four dietary compounds and their modifications - gluten and its omission, vitamin D supplementation, omega-3 fatty acids supplementation, and decreasing of the amount of ingested carbohydrates. The aim of this narrative review was to provide an overview of nutritional interventions studied in children either as preventive methods or as modifiers in the early stages of T1D from autoantibody positive individuals to persons with newly diagnosed T1D.</p><p><strong>Key messages: </strong>Our review shows that dietary modifications in various dietary components might be useful but none of them seems to provide universal effects in T1D prevention or progression modification. More research is therefore needed with focus on promising modes of action of individual dietary components.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141261569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic Findings in Short Turkish Children Born to Consanguineous Parents.","authors":"Sjoerd D Joustra, Emregul Isik, Jan M Wit, Gonul Catli, Ahmet Anik, Belma Haliloglu, Nurgun Kandemir, Elif Ozsu, Yvonne M C Hendriks, Christiaan de Bruin, Sarina G Kant, Angel Campos-Barros, Rachel C Challis, David Parry, Margaret E Harley, Andrew Jackson, Monique Losekoot, Hermine A van Duyvenvoorde","doi":"10.1159/000539696","DOIUrl":"10.1159/000539696","url":null,"abstract":"<p><strong>Introduction: </strong>The diagnostic yield of genetic analysis in the evaluation of children with short stature depends on associated clinical characteristics, but the additional effect of parental consanguinity has not been well documented.</p><p><strong>Methods: </strong>This observational case series of 42 short children from 34 consanguineous families was collected by six referral centres of paediatric endocrinology (inclusion criteria: short stature and parental consanguinity). In 18 patients (12 families, group 1), the clinical features suggested a specific genetic defect in the growth hormone (GH) insulin-like growth factor I (IGF-I) axis, and a candidate gene approach was used. In others (group 2), a hypothesis-free approach was chosen (gene panels, microarray analysis, and whole exome sequencing) and further subdivided into 11 patients with severe short stature (height &lt;-3.5 standard deviation score [SDS]) and microcephaly (head circumference &lt;-3.0 SDS) (group 2a), 10 patients with syndromic short stature (group 2b), and 3 patients with nonspecific isolated GH deficiency (group 2c).</p><p><strong>Results: </strong>In all 12 families from group 1, (likely) pathogenic variants were identified in GHR, IGFALS, GH1, and STAT5B. In 9/12 families from group 2a, variants were detected in PCNT, SMARCAL1, SRCAP, WDR4, and GHSR. In 5/9 families from group 2b, variants were found in TTC37, SCUBE3, NSD2, RABGAP1, and 17p13.3 microdeletions. In group 2c, no genetic cause was found. Homozygous, compound heterozygous, and heterozygous variants were found in 21, 1, and 4 patients, respectively.</p><p><strong>Conclusion: </strong>Genetic testing in short children from consanguineous parents has a high diagnostic yield, especially in cases of severe GH deficiency or insensitivity, microcephaly, and syndromic short stature.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7616538/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141261637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Congenital Hyperinsulinism of a Large Italian Cohort: A Retrospective Study.","authors":"Francesco Tagliaferri, Roberta Iannuzzi, Gabriele Canciani, Silvia M Bernabei, Carmen Campana, Stefania Caviglia, Benedetta Greco, Francesca R Lepri, Antonio Novelli, Milena Pizzoferro, Maria C Garganese, Marco Spada, Paola Francalanci, Carlo Dionisi-Vici, Arianna Maiorana","doi":"10.1159/000538943","DOIUrl":"10.1159/000538943","url":null,"abstract":"<p><strong>Introduction: </strong>To evaluate and describe the diagnostic process, medical, nutritional, and surgical approach, and neurological outcome, we report data from a large Italian cohort of patients with congenital hyperinsulinism (CHI).</p><p><strong>Methods: </strong>We retrospectively analyzed 154 CHI patients admitted to Ospedale Pediatrico Bambino Gesù from 1985 to 2022.</p><p><strong>Results: </strong>Hypoglycemia occurred within the first year of life in 85.5% of patients, median time to diagnosis was 1 day (IQR 14 days). Ninety-two percent of patients were treated with diazoxide: 66.9% were responsive. Octreotide was administered to 28.6% of patients: 61.4% were responsive. Forty percent of patients were off-therapy, mostly from diazoxide. Thirty-four percent of patients carried mutations in ABCC8, 12.6% were syndromic, and 9.2% were transient CHI. Surgery was performed in 23/47 diazoxide-unresponsive and 2/95 diazoxide-responsive patients: 64.0% were focal at histology. Combining data from genetics, pancreatic venous sampling, 18F-DOPA PET/CT, and histology, 80.6% resulted diffuse, 16.7% focal, and 2.8% atypical CHI. Post-surgical diabetes developed in 6 patients. Neurocognitive evaluation revealed developmental delay or intellectual disability in 15.7% of 70 patients, mostly of a mild degree. Epilepsy was documented in 13.7% of 139 patients.</p><p><strong>Conclusion: </strong>Our diagnostic and therapeutic results are mainly consistent with the international indications and the CHI Global Registry data, with relatively low rates of neurological outcomes. Good outcomes were likely associated with early diagnosis and prompt management of patients because the majority of patients were diagnosed within 2 weeks. Remarkably, it is of utmost importance to spread the knowledge and refer CHI patients to multidisciplinary expert centers.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Variants of Unknown Significance in Maturity-Onset Diabetes of the Young: High Rate of Conundrum Resolution via Variants of Unknown Significance Reanalysis.","authors":"Guido Alarcon, Glenn A Maston, Carol A Hoffman, Jennifer E Posey, Maria Jose Redondo, Mustafa Tosur","doi":"10.1159/000539542","DOIUrl":"10.1159/000539542","url":null,"abstract":"<p><strong>Introduction: </strong>In the era of next-generation sequencing, clinicians frequently encounter variants of unknown significance (VUS) in genetic testing. VUS may be reclassified over time as genetic knowledge grows. We know little about how best to approach VUS in the maturity-onset diabetes of the young (MODY). Therefore, our study aimed to determine the utility of reanalysis of previous VUS results in genetic confirmation of MODY.</p><p><strong>Methods: </strong>A single-center retrospective chart review identified 85 subjects with a MODY clinical diagnosis. We reanalyzed genetic testing in 10 subjects with 14 unique VUS on MODY genes that was performed &gt;3 years before the study. Demographic, clinical, and biochemical data was collected for those individuals.</p><p><strong>Results: </strong>After reanalysis, 43% (6/14) of the gene variants were reclassified to a different category: 7% (1/14) were \"likely pathogenic\" and 36% (5/14) were \"benign\" or \"likely benign.\" The reclassified pathogenic variant was in HNF1A and all reclassified benign variants were in HNF1A, HNF1B and PDX1. The median time between MODY testing and reclassification was 8 years (range: 4-10 years).</p><p><strong>Conclusion: </strong>In sum, iterative reanalyzing the genetic data from VUS found during MODY testing may provide high-yield diagnostic information. Further studies are warranted to identify the optimal time and frequency for such analyses.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical Characteristics of Children with THRA Mutations: Variable Phenotype and Good Response to Recombinant Human Growth Hormone Therapy.","authors":"Nathalia L M Andrade, Raissa C Rezende, Lindiane G Crisostomo, Naiara C B Dantas, Laurana P Cellin, Vinicius de Souza, Elisangela P S Quedas, Antonio M Lerario, Gabriela A Vasques, Alexander A L Jorge","doi":"10.1159/000539348","DOIUrl":"10.1159/000539348","url":null,"abstract":"<p><strong>Introduction: </strong>Mutations in the thyroid hormone receptor alpha (THRA) gene are a rare cause of thyroid hormone resistance, which leads to a pleomorphic phenotypic spectrum. Hormonal profiles are variable and subtle, making laboratory diagnoses challenging. Genetic evaluation can be a helpful tool in diagnosing these cases.</p><p><strong>Case presentation: </strong>Three patients (P1, P2, and P3) from unrelated families presented to their endocrinologists with short stature and abnormalities in thyroid function results. P1 showed hypoactivity and mild thyroid-stimulating hormone (TSH) elevation. P2 presented with a mild developmental delay and a hormonal profile initially interpreted as central hypothyroidism. Patient P3 had severe symptoms, including hypotonia, developmental delay, normal TSH, hypercholesterolemia, severe hypertriglyceridemia, high amylase levels, and mild pericardial effusion. All the patients had low free thyroxine (FT4) levels, mild constipation, and short stature. The patients underwent exome sequencing analysis that identified three different heterozygous variants in the THRA gene (P1 and P2 had missense variants, and P3 had a stop codon variant). All patients were treated with levothyroxine replacement, improving their clinical symptoms, such as constipation, and neurological symptoms. P1 and P2 were also treated with the recombinant human growth hormone (rhGH). The improvements in growth velocity and height standard deviation scores (SDS) were remarkable. Notably, P1 had a total height gain of 2.5 SDS, reaching an adult height within the normal range.</p><p><strong>Conclusion: </strong>THRA gene defects can lead to growth disorders with different phenotypes. Children with THRA mutations can benefit from adequate treatment with levothyroxine and may respond well to rhGH treatment.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140920941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Precocious Puberty and GnRH Analogs: Current Treatment Practices and Perspectives among US Pediatric Endocrinologists.","authors":"Emily Breidbart, Jeniece Ilkowitz, Molly O Regelmann, Ambika P Ashraf, Evgenia Gourgari, Manmohan K Kamboj, Brenda Kohn, Amit Lahoti, Shilpa Mehta, Ryan Miller, Vandana Raman, Aditi Khokhar, Preneet C Brar","doi":"10.1159/000539011","DOIUrl":"10.1159/000539011","url":null,"abstract":"<p><strong>Introduction: </strong>Gonadotropin releasing hormone analogs (GnRHas) are used for treatment of precocious puberty. Over the last decade, several new formulations have been approved.</p><p><strong>Methods: </strong>The Drugs and Therapeutics Subcommittee of the Pediatric Endocrine Society (PES) undertook a review to ascertain the current treatment options, prescribing behaviors, and practices of GnRHas among pediatric endocrinologists practicing within the USA. The survey consisted of four main subsections: (1) description of clinical practice; (2) self-assessment of knowledge base of pediatric and adult GnRHa formulations; (3) current practice for treating central precocious puberty (CPP); and (4) utilization of healthcare resources.</p><p><strong>Results: </strong>There were 223 survey respondents. Pediatric endocrine practitioners were most familiar with the pediatric one-monthly preparation, the 3-month preparation, and the histrelin implant (Supprelin®) (88%, 96%, and 91%, respectively), with lower familiarity for 24-week triptorelin intramuscular (Triptodur®) (65%) and 6-month subcutaneous leuprolide (Fensolvi®) (45%). Only 23% of the respondents reported being extremely familiar with the availability of adult formulations, and 25% reported being completely unaware of cost differences between pediatric and adult GnRHa preparations. The implant was the most preferred therapy (44%), but in practice, respondents reported a higher percentage of patients treated with the 3-month preparation. While family preference/ease of treatment (87%) was the key determinant for using a particular GnRHa preparation, insurance coverage also played a significant role in the decision (64%). Responses regarding assessment for efficacy of treatment were inconsistent, as were practices and criteria for obtaining an MRI.</p><p><strong>Conclusions: </strong>The survey indicated there is more familiarity with older, shorter acting GnRHas, which are prescribed in greater numbers than newer, longer acting formulations. There is lack of consensus on the need for central nervous system (CNS) imaging in girls presenting with CPP between 6 and 8 years of age and use of laboratory testing to monitor response to treatment. Insurance requirements regarding CNS imaging and laboratory monitoring are highly variable. Despite having similar constituents and bioavailability, there are substantial cost differences between the pediatric and adult formulations and lack of evidence for safe use of these formulations in children. The survey-based analysis highlights the challenges faced by prescribers while reflecting on areas where further research is needed to provide evidence-based practice guidelines for pediatric endocrinologists.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140891003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neurodevelopmental Follow-Up of Children Born to Mothers with Graves' Disease and Neonatal Hyperthyroidism.","authors":"Francisca Grob, Amy Brown, Margaret Zacharin","doi":"10.1159/000539268","DOIUrl":"10.1159/000539268","url":null,"abstract":"<p><strong>Introduction: </strong>Neonatal hyperthyroidism, often caused by maternal Graves' disease (GD), carries potential neurodevelopmental risks for children. Excessive thyroid hormones during fetal development are linked to neurological issues like ADHD and epilepsy. However, the impact of transient neonatal hyperthyroidism is not well understood.</p><p><strong>Methods: </strong>In a retrospective study at the Royal Children's Hospital in Melbourne, 21 neonates with hyperthyroidism from mothers with GD were examined. Of these, the parents of 10 children consented to participate; thus, questionnaires assessing executive functions, behavior, and social communication were completed. The outcomes were compared to those of control subjects recruited from the community using standardized tools (BRIEF, SDQ, SCQ). The results were analyzed against socio-demographic factors, maternal, and neonatal health.</p><p><strong>Results: </strong>No significant demographic or clinical differences were found between study participants (n = 10) and non-participants (n = 11). Participants, compared to controls, showed similar family demographics but a higher proportion of control parents had university-level education (p = 0.003). Patients displayed more social (SCQ scores: 12.1 ± 2.5 vs. 6 ± 1.07, p = 0.008) and behavioral difficulties (SDQ scores: 10.2 ± 2.17 vs. 6.14 ± 1.03, p = 0.03), with increased executive function challenges (BRIEF scores indicating problem-solving and self-regulation difficulties). Significant effects of family living situation and partner education level on neurodevelopmental measures were noted, underscoring the influence of socio-demographic factors.</p><p><strong>Conclusions: </strong>These findings suggest neonatal hyperthyroidism might lead to subtle neurodevelopmental variations, with socio-economic elements and family dynamics possibly intensifying these effects. While most children did not show severe impairments, early detection and intervention are recommended. The research emphasizes the necessity for inclusive care approaches that consider socio-economic factors for children affected by neonatal hyperthyroidism.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140890879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vascular Complications in Children and Young People with Type 1 Diabetes: A Worldwide Assessment of Diabetologists' Adherence to International Recommendations.","authors":"Claudia Piona, Agata Chobot, Tiago Jeronimo Dos Santos, Elisa Giani, M Loredana Marcovecchio, Claudio Maffeis, Carine de Beaufort","doi":"10.1159/000539258","DOIUrl":"10.1159/000539258","url":null,"abstract":"<p><strong>Introduction: </strong>This global survey evaluated the practices and adherence to international Clinical Practice Consensus Guidelines (CPCG) of physicians involved in pediatric diabetes care regarding screening, prevention and treatment of vascular complications of type 1 diabetes (T1D).</p><p><strong>Method: </strong>A web-based survey gathering data about respondents' background, practices related to screening, prevention, and treatment of diabetic nephropathy, retinopathy, neuropathy, and macrovascular diseases and a self-assessment of physicians' knowledge based on the ISPAD CPCG 2018 were shared by ISPAD.</p><p><strong>Results: </strong>We received 175 responses from 62 countries (60% female, median age 42.3 years, 72.0% ISPAD members). Two-thirds of respondents initiated nephropathy and retinopathy screening per CPCG recommendations. Only half of them adhered to recommendations for neuropathy and macrovascular disease risk factors (RFs). Over 85% of respondents used the recommended screening method for nephropathy, retinopathy and macrovascular disease RFs, and only 59% for neuropathy. Lack of access to neuropathy and macrovascular diseases RF screening methods was reported by 22.2% and 11.8% of respondents, respectively. Adherence to recommended screening frequency varied: 92% for nephropathy, around two-thirds for neuropathy and macrovascular disease RFs, and only 17.7% for retinopathy. Most participants aligned their practices for treating T1D complications with CPCG recommendations, except for nephropathy. Significant differences in adherence to CPCG and individuals' financial contributions reflected countries' income levels. Around 50% of the respondents were very familiar with the ISPAD CPCG content.</p><p><strong>Conclusion: </strong>Our study highlights global variation in adherence to CPCG for T1D vascular complications, which is influenced by country income and healthcare disparities. It also revealed knowledge gaps among physicians on this critical topic.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140890989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Availability, Usage, and Preferences of Estradiol and Progestogen Preparations for Puberty Induction from a Multicentral Perspective.","authors":"Aneta M Gawlik-Starzyk, Małgorzata Więcek, Debbie Matthews, Berit Öhman Kriström, Janielle A E M van der Velden, Theo C J Sas, Malgorzata Wasniewska, Siska Verlinde, Caroline Brain, Arlene Smyth, Malcolm David Cairns Donaldson","doi":"10.1159/000539236","DOIUrl":"10.1159/000539236","url":null,"abstract":"<p><strong>Introduction: </strong>Natural oestrogen administration as oral or transdermal 17β-estradiol is recommended for pubertal induction in girls with hypogonadism. However, suitable low-dose formulations are not consistently available globally. This questionnaire study aimed to identify the current availability of oestrogen and progesterone preparations worldwide.</p><p><strong>Methods: </strong>Endorsed by the ESPE Turner Syndrome Working Group, the questionnaire targeted paediatric endocrinologists. Questions focused on accessibility of oral/transdermal 17β-estradiol and progestogen preparations. Responses were collected through a SurveyMonkey survey disseminated via ESPE channels, direct outreach, and conferences from June 2020 to December 2022.</p><p><strong>Results: </strong>Participation included 229 healthcare professionals from 45 countries. Oral and transdermal 17β-estradiol in adult dosage was highly accessible (86.5% and 84.3%), with transdermal administration the preferred form (62.8%). Most commonly available estradiol preparations included 50 μg patches (32 countries) and 1 or 2 mg tablets (65.8% and 71.1% countries). However, 0.5 mg 17β-estradiol tablets were available in only 20% of respondents from 8 countries. Patches delivering 14 or 25 μg/day of 17β-estradiol were available in 3 and 20 countries, respectively. Oral progestogen had widespread availability (96.0%) and preference (87.0%), while transdermal usage was limited to 15.2% of respondents.</p><p><strong>Conclusion: </strong>This study highlights global challenges in accessing suitable hormone preparations for female pubertal induction. In most countries, the lowest dose of the estradiol is 50 µg for patches and 2 mg for tablets. Appropriate low-dose 17β-estradiol tablets are much less available than low-dose patches. Our survey underscores the importance of adapting guidelines to local availability, and the need for improved accessibility to address these global disparities.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140890654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Copeptin Stimulation by Combined Intravenous Arginine and Oral LevoDopa/Carbidopa in Healthy Short Children and Children with the Polyuria-Polydipsia Syndrome.","authors":"Christine A March, Shruti Sastry, Michael J McPhaul, Sarah E Wheeler, Luigi Garibaldi","doi":"10.1159/000539208","DOIUrl":"10.1159/000539208","url":null,"abstract":"<p><strong>Introduction: </strong>Stimulated copeptin may provide an alternative to water deprivation testing (WDT) in the evaluation of polyuria-polydipsia syndrome (PPS). Though best studied, arginine stimulation alone produces a modest copeptin response in children. We investigated the effectiveness of the arginine + LevoDopa/Carbidopa stimulation test (ALD-ST) for copeptin.</p><p><strong>Methods: </strong>47 healthy short children (controls), 10 children with primary polydipsia, and 10 children with AVP deficiency received arginine hydrochloride (500 mg/kg intravenously over 30 min) and Levodopa/carbidopa (10:1 ratio; 175 mg of <sc>l</sc>-Dopa/m2 BSA) orally. Serum copeptin was measured at 0, 60, 90, and 120 min.</p><p><strong>Results: </strong>In controls, ALD-ST increased copeptin from a median of 7.0 pmol/L (IQR 5.0-10.0) to a peak of 44.0 pmol/L (IQR 21.4-181.0) between 60 and 120 min (p &lt; 0.001). Copeptin peak was higher in subjects who experienced nausea or vomiting (57%) than in those who did not (131.0 pmol/L [IQR 42.5-193.8] vs. 22.7 pmol/L [IQR 16.0-33.7], p &lt; 0.001). While subjects with primary polydipsia had similar baseline (8.5 pmol/L [IQR 8.0-11.0]) and stimulated (125.2 pmol/L [IQR 87.6-174.0]) copeptin levels as controls, subjects with AVP deficiency had lower baseline (2.5 pmol/L [IQR 2.0-3.1]) and peak levels (4.6 pmol/L [IQR 2.4-6.0]). A peak copeptin of ≥9.3 pmol/L best predicted absence of complete or partial AVP deficiency with a sensitivity of 100% and specificity of 80%.</p><p><strong>Conclusions: </strong>ALD-ST induced a robust peak copeptin in healthy short children and children with primary polydipsia. Nausea/vomiting, a side effect of ALD-ST, amplified the copeptin response. The ALD-ST may be a suitable initial screening test in children with PPS.</p>","PeriodicalId":13025,"journal":{"name":"Hormone Research in Paediatrics","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140860612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}