Abstract:
BACKGROUND:Insulin-like growth factor I (IGF-I) immunoassays are primarily used to estimate IGF-I status. Recently an IGF-I-specific kinase receptor activation assay (KIRA) was developed as an alternative method for measuring IGF-I bioactivity. When compared with IGF-I immunoassays, the IGF-I KIRA has the theoretical advantage of measuring the net effects of IGF-binding proteins on IGF-I receptor activation. The IGF-I KIRA is sensitive and specific and has, for a bioassay, a very low intra- and inter-assay coefficient of variation (<7 and <15%, respectively). Several studies have shown that the IGF-I KIRA is more sensitive than IGF-I immunoassays for detecting differences in clinical state. In addition, the IGF-I KIRA seems superior to IGF-I immunoassays for monitoring acute effects of therapeutic interventions. CONCLUSIONS:It is not known if IGF-I KIRA is superior to IGF-I immunoassays for evaluating the efficacy of growth hormone (GH) treatment for GH deficiency and of GH receptor antagonist treatment for acromegaly. However, IGF-I KIRA undoubtedly will provide new insights into the factors that regulate IGF-I bioactivity in the circulation in both healthy and diseased states.
journal_name
Horm Res Paediatrjournal_title
Hormone research in paediatricsauthors
Janssen JAdoi
10.1159/000329191subject
Has Abstractpub_date
2011-01-01 00:00:00pages
106-10eissn
1663-2818issn
1663-2826pii
000329191journal_volume
76 Suppl 1pub_type
杂志文章abstract:AIMS:To compare adult heights of GH-treated and GH-untreated patients with Silver-Russell syndrome (SRS) who were epigenotyped. METHODS:This was a nonrandomized retrospective study with matched controls at a single center. Molecular analysis of 32 out of 37 GH-treated patients (16 females) revealed IGF2-H19 epimutatio...
journal_title:Hormone research in paediatrics
pub_type: 临床试验,杂志文章
doi:10.1159/000354658
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Mutations in the imprinted gene MKRN3 have been described as a common genetic cause of idiopathic central precocious puberty (CPP), in particular in familial cases. However, the exact prevalence of mutations is unknown. Single nucleotide polymorphisms in 2 other imprinted genes, DLK1 and KCNK9, have been ass...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000477441
更新日期:2017-01-01 00:00:00
abstract::The preproghrelin gene is responsible for generating ghrelin and obestatin, two gastric peptides with opposite effects on food intake. Obestatin suppresses food intake and digestive motility through interaction with GPR39 (GPCR). Ghrelin is supposed to be a link connecting metabolism and energy homeostasis with growth...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000347218
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Previous studies suggest normal mineral status in children receiving elemental formula. However, a recent multicenter survey described 51 children who developed hypophosphatemia and bone disease while receiving elemental formula. Our aim is to determine the prevalence of metabolic bone disease in children re...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000494726
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Combined pituitary hormone deficiency (CPHD) presents a wide spectrum of pituitary gland disorders. The postnatal gonadotropic surge provides a useful period to explore the gonadotropic axis for assessing the presence of congenital hypogonadotropic hypogonadism (CHH). AIM:To explore the functioning of the h...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000439051
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND/AIM:Combined growth hormone (GH) and insulin therapy is rarely prescribed by pediatric endocrinologists. We investigated the attitude of Italian physicians to prescribing that therapy in the case of short stature and type-1 diabetes (T1DM). METHODS:A questionnaire was sent and if a patient was identified, d...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章,多中心研究
doi:10.1159/000360856
更新日期:2014-01-01 00:00:00
abstract::Regular self-monitoring of blood glucose is crucial for proper insulin dosing and gives a reliable foundation for reasonable glycaemic control. According to recent data, recommended values for glycated haemoglobin A1c as set by the professional associations remain out of the reach for a large proportion of the paediat...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章,评审
doi:10.1159/000368924
更新日期:2015-01-01 00:00:00
abstract::The diagnosis of childhood-onset growth hormone (GH) deficiency (GHD) is not straightforward, requiring a comprehensive clinical, anthropometric, biochemical, endocrine, and neuroradiological assessment. Although pharmacological GH stimulation tests are still considered the gold standard for GHD diagnosis, they are bu...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000314895
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Glycogen storage disease type 1 (GSD1) is a rare and genetically heterogeneous metabolic defect of gluconeogenesis due to mutations of either the G6PC gene (GSD1a) or the SLC37A4 gene (GSD1b). Osteopenia is a known complication of GSD1. OBJECTIVES:The aim of this study was to investigate the effects of poor...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章,多中心研究
doi:10.1159/000351022
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Hyperandrogenism is a rare symptom of juvenile ovarian granulosa cell- tumors (JGCTO). This study aimed to determine whether hyperandrogenism was related to overexpression of SOX9, decreased expression of FOXL2 or absent aromatase expression in tumor with particular scheme of expression of P450scc and P450c1...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000313396
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND/AIMS:With rising cure rates of childhood cancer, side effects of treatment are attracting increasing interest. The present analysis evaluates the influence of tumor localization, radiotherapy and chemotherapy on the age of menarche. METHODS:4,689 former pediatric oncology patients, diagnosed 1980-2004, were...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000336688
更新日期:2012-01-01 00:00:00
abstract:AIMS:To examine the cross-sectional relationship between blood pressure (BP) and (1) in vivo insulin sensitivity (IS) and (2) circulating adiponectin levels in overweight adolescents, and to determine if these relationships are driven by adiposity. METHODS:Sixty-five white pubertal overweight adolescents underwent a h...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000331462
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND/AIMS:The autonomic nervous system (ANS) provides neurogenic control of inflammatory reactions. ANS changes in obesity may result in inflammation. This study sought to gain insight into cardiac autonomic dysfunction and inflammation in childhood obesity, and to gather pilot data on the potential relationship ...
journal_title:Hormone research in paediatrics
pub_type: 临床试验,杂志文章
doi:10.1159/000445685
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND/AIMS:Former definitions of metabolic syndrome (MS) in children have been adapted from adult MS definitions using age-related thresholds for each biochemical component, whereas the International Diabetes Federation (IDF) definition is based on absolute values. We compared the IDF childhood MS definition (IDF-...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000284359
更新日期:2010-01-01 00:00:00
abstract::Following the introduction of life-saving glucocorticoid replacement 60 years ago, congenital adrenal hyperplasia (CAH) has evolved from being perceived as a paediatric disorder to being recognized as a lifelong, chronic condition affecting patients of all age groups. Increasing evidence suggests that patients with CA...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章,评审
doi:10.1159/000327794
更新日期:2011-01-01 00:00:00
abstract:AIM/BACKGROUND:Vitamin D supplementation during pregnancy is a well-accepted recommendation worldwide; however, the debate about the correct dose is ongoing. We aimed to compare daily doses of 600, 1,200, and 2,000 IU in this randomized, controlled study. METHODS:The study group consisted of 91 pregnant women aged 16-...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章,随机对照试验
doi:10.1159/000358833
更新日期:2014-01-01 00:00:00
abstract::Infantile Cushing's syndrome is potentially found as part of McCune-Albright syndrome (MAS) which is caused by postzygotic somatic mutations of the GNAS gene. MAS is typically characterized by a triad of polyostotic fibrous dysplasia, café-au-lait skin pigmentation, and precocious puberty or other endocrine hyperfunct...
journal_title:Hormone research in paediatrics
pub_type:
doi:10.1159/000501169
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Early detection of suspected poor adherence to growth hormone (GH) therapy is crucial to achieve normal final height in GH-deficient (GHD) patients. PATIENTS:106 children (73 M, 33 F) with a median age of 10.47±3.48 years (mean±standard deviation score (SDS)) exhibited short stature (-1.76±0.64 SDS) and a d...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000357975
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Diazoxide is the first-line treatment for pediatric hyperinsulinemic hypoglycemia (HI). This study aimed to elucidate the pharmacokinetics of diazoxide in children with HI. METHODS:We obtained 81 blood samples from 22 children with HI. Measured serum diazoxide concentrations were used for population pharmac...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000478696
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:A UK study showed final height in Turner syndrome (TS) girls receiving growth hormone is affected by age at pubertal induction and oxandrolone (Ox). Using data from that study, we analysed the effect of timing of oral ethinylestradiol (EE2) and Ox on height velocity (HV), bone maturation and pubertal progres...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1159/000356924
更新日期:2014-01-01 00:00:00
abstract::The hypothalamic-pituitary-thyroid axis is a common site of unintended, acquired disease either during or after the treatment of cancer. Children treated with external radiation therapy are at the highest risk for developing a thyroid-related late effect, but thyroid dysfunction and second primary thyroid neoplasms ca...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章,评审
doi:10.1159/000495040
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Obesity, age and hormone imbalances including hypothyroidism and growth hormone deficiency and therapy, but not gonadotropin-releasing hormone agonist (GnRHa) therapy, have been identified as risk factors for slipped capital femoral epiphysis (SCFE). Five of 7 reported cases describe SCFE in children shortly...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000351028
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND/AIMS:The diagnosis of growth hormone (GH) deficiency (GHD) in infancy and early childhood is not straightforward. GH stimulation tests are unsafe and unreliable in infants, and normative data are lacking. This study aims to investigate whether brain magnetic resonance imaging (MRI) may replace GH stimulation...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000439590
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Aromatase inhibition has been proposed as a potential approach for growth enhancement in children with short stature, but detailed animal studies are lacking. AIM:To assess the effect and potential adverse effects of aromatase inhibition on growth in female rats. METHODS:Prepubertal Wistar rats received in...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000271916
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Over the past 15 years, the incidence of type 1 diabetes mellitus (T1DM) in Central and Eastern Europe has grown rapidly from an initially low rate. This growth cannot be attributed to genetic factors: it appears that changing environmental exposures are responsible, though no single environmental factor can...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000329168
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:ACP5 deficiency is known to cause spondyloenchondrodysplasia (SPENCD), which is characterized by various autoimmune and neurological symptoms in addition to short stature. METHODS:Two siblings from a consanguineous Turkish family, a girl aged 13 years (P1) and a boy aged 8 years (P2), presented to their end...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000443684
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVES:Long-term clinical follow-up and mutation analysis were performed in 27 Chinese congenital hyperinsulinism patients. METHOD:27 hypoglycemia patients were diagnosed with CHI within 2 years of age. The long-term clinical outcome was analyzed and mutation analysis of 5 hyperinsulinism candidate genes was perfo...
journal_title:Hormone research in paediatrics
pub_type: 临床试验,杂志文章
doi:10.1159/000356911
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Papillary thyroid cancer (PTC) is an uncommon pediatric disease with an excellent prognosis. In follow-up surveillance, neck ultrasound (US), basal and thyroid-stimulating hormone-stimulated serum thyroglobulin (Tg) levels, and diagnostic whole-body radioactive iodine scans (DxWBS) have been traditionally us...
journal_title:Hormone research in paediatrics
pub_type:
doi:10.1159/000487436
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:GATA6 mutations are the most frequent cause of pancreatic agenesis and diabetes in human sporadic cases. In families, dominantly inherited mutations show a variable phenotype also in terms of endocrine and exocrine pancreatic disease. We report two novel GATA6 mutations in an independent cohort of 8 children...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000348844
更新日期:2013-01-01 00:00:00
abstract::Hepatic haemiangiomas in infancy are rare. An association with hypothyroidism has been previously reported and is believed to be secondary to the conversion of thyroxine (fT4) to biologically inactive reverse triiodothyronine (rT3) by type 3 iodothyronine deiodinase (D3). We report a case that responded well to the co...
journal_title:Hormone research in paediatrics
pub_type: 杂志文章
doi:10.1159/000281884
更新日期:2010-01-01 00:00:00