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1.
Eur J Pediatr ; 183(4): 1857-1870, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38294515

RESUMO

Although the coronavirus disease 2019 (COVID-19) pandemic accelerated the adoption and expansion of telemedicine worldwide, little is known about the transition to home-based care for children. This study aims to investigate the facilitators and barriers to the transition from outpatient clinic visits to home-based check-ups (HBCU), for children being treated with growth hormone. A mixed-methods study was performed at Amalia Children's Hospital (Radboud University Medical Centre, Nijmegen), consisting of questionnaires and semi-structured and focus group interviews. For the quantitative part, the Measurement Instrument for Determinants of Innovation (MIDI) was utilised to investigate the facilitators and barriers for the 81 participants regarding the transition to HBCU. The MIDI questionnaire is comprised of four domains: the innovation-, user-, organisation-, and the socio-political scale. Descriptive statistics were performed for analysing the questionnaires. For the qualitative part, interviews with 10 participants derived from the questionnaire and the two focus group interviews were conducted, to gain more in-depth information about the research topic, until data saturation was reached. The interviews were analysed by using the reflective thematic approach, starting with deductive coding and followed by inductive coding. Several facilitators were recognised in our study: procedural clarity, self-efficacy, convenience, patient-centred care, increased accuracy in height measurements, social support, client/patient satisfaction/cooperation, patient-centred care, the flexibility and adaptivity of HBCU, physical start-up period of HBCU, and a potential decrease in healthcare costs. However, several barriers were also noted in our study: poor compatibility with current practice, lack of consultation within the team, feeling of being less controlled by physicians, unsettledness of the organisation, an increased workload for the staff, and insufficient information communication technology (ICT) facilities. CONCLUSION: This study revealed that HBCU have considerable benefits for both patients and healthcare professionals, from the standpoint of innovation, user, and socio-political points of view. The identified facilitators and barriers to HBCU should be taken into account when further steps of implementing HBCU are considered. WHAT IS KNOWN: • The Corona-Virus-Disease 2019 (COVID-19) pandemic has had an immense impact on health care worldwide. A substantial amount of the outpatient clinic visits for children treated with growth hormone was, as a result of the pandemic, transferred to online consultation. Transitioning paediatric growth hormone treatment to the home setting may be favorable for children and their parents/caregivers) as well for healthcare professionals. • Insights regarding facilitators and barriers is vital for the successful implementation and adoption of home-care technologies. WHAT IS NEW: • To our knowledge, we are first to report on and explicit the facilitators and barriers of the transition to home-based check-ups, via online consultation for children being treated with growth hormone. • Both children and healthcare professionals reported major facilitators and some minor barriers to the transition to home-based check-ups, illustrating their potential value. These facilitators and barriers should be considered while working towards implementation of home-based check-ups.


Assuntos
COVID-19 , Hormônio do Crescimento , Humanos , Criança , Pessoal de Saúde , Instituições de Assistência Ambulatorial , Grupos Focais , Pesquisa Qualitativa
2.
Eur J Pediatr ; 183(5): 2257-2272, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38411716

RESUMO

Patients with Aarskog-Scott syndrome (AAS) have short stature, facial anomalies, skeletal deformities, and genitourinary malformations. FYVE, RhoGEF, and PH domain-containing 1 (FGD1) is the only known causative gene of AAS. However, the diagnosis of AAS remains difficult, and specific treatments are still absent. Patients suspected with AAS were recruited, and clinical information was collected. Genetic testing and functional analysis were carried out for the diagnosis. By literature review, we summarized the clinical and genetic characteristics of FGD1-related AAS and analyzed the genotype-phenotype correlation. Five patients were recruited, and four novel FGD1 variants were identified. The diagnosis of AAS was confirmed by genetic analysis and functional study. Three patients treated with growth hormone showed improved heights during the follow-up period. By literature review, clinical features of AAS patients with FGD1 variants were summarized. Regarding FGD1 variations, substitutions were the most common form, and among them, missense variants were the most frequent. Moreover, we found patients with drastic variants showed higher incidences of foot and genitourinary malformations. Missense variants in DH domain were related to a lower incidence of cryptorchidism.   Conclusion: We reported four novel pathogenic FGD1 variations in AAS patients and confirmed the efficacy and safety of growth hormone treatment in FGD1-related AAS patients with growth hormone deficiency. Additionally, our literature review suggested the crucial role of DH domain in FGD1 function. What is Known: • Aarskog-Scott syndrome is a rare genetic disease, and the only known cause is the variant in FGD1 gene. The typical clinical manifestations of AAS include facial, skeletal, and urogenital deformities and short stature. What is New: • We reported four novel FGD1 variants and reported the treatment of growth hormone in FGD1-related AAS patients. Our genotype-phenotype correlation analysis suggested the crucial role of DH domain in FGD1 function.


Assuntos
Anormalidades Múltiplas , Face , Doenças Genéticas Ligadas ao Cromossomo X , Genitália Masculina , Fatores de Troca do Nucleotídeo Guanina , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Anormalidades Múltiplas/genética , Anormalidades Múltiplas/diagnóstico , Nanismo/genética , Nanismo/diagnóstico , Nanismo/tratamento farmacológico , Face/anormalidades , Estudos de Associação Genética , Genitália Masculina/anormalidades , Fatores de Troca do Nucleotídeo Guanina/genética , Deformidades Congênitas da Mão/genética , Deformidades Congênitas da Mão/diagnóstico , Cardiopatias Congênitas/genética , Cardiopatias Congênitas/diagnóstico , Fenótipo , Dermatoses do Couro Cabeludo/genética , Dermatoses do Couro Cabeludo/diagnóstico , Dermatoses do Couro Cabeludo/tratamento farmacológico , Dermatoses do Couro Cabeludo/congênito , Anormalidades Urogenitais/genética , Anormalidades Urogenitais/diagnóstico
3.
Gynecol Endocrinol ; 40(1): 2358227, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38807420

RESUMO

OBJECTIVE: The aim of this study was to explore the impact of growth hormone (GH) therapy on the onset and progression of puberty in girls with idiopathic short stature. METHODS: This study included 541 girls aged between 4.5 and 10.6 years who were receiving GH treatment, monitored over a 22-year follow-up period. Of these, 126 girls have been followed up to the onset of menarche. The participants were divided into two groups: a ISS control group (n = 66) and a group receiving daily GH treatment at a dose of 0.15 iu/kg (n = 60). We assessed the pubertal development and GH usage of these girls every three months. RESULTS: (1) There was no significant difference in the onset of puberty between the growth hormone (GH) treatment group and the control group; however, the average duration of puberty was longer in the treatment group compared to the control group. (2) During puberty, there were no significant differences in height growth between the treated and untreated groups. (3) The duration of GH treatment showed a significant negative correlation with the age at onset of gonadal development and the age at menarche in females within the treatment group. CONCLUSION: GH treatment does not seem to accelerate the onset of puberty but may extend its duration, without significantly impacting height growth during puberty. Additionally, longer GH treatment duration is linked to earlier gonadal development and menarche in females.


Assuntos
Estatura , Transtornos do Crescimento , Hormônio do Crescimento Humano , Menarca , Puberdade , Humanos , Feminino , Criança , Hormônio do Crescimento Humano/uso terapêutico , Hormônio do Crescimento Humano/administração & dosagem , Puberdade/efeitos dos fármacos , Transtornos do Crescimento/tratamento farmacológico , Menarca/efeitos dos fármacos , Estatura/efeitos dos fármacos , Pré-Escolar , Seguimentos , Adolescente
4.
BMC Pediatr ; 24(1): 32, 2024 01 10.
Artigo em Inglês | MEDLINE | ID: mdl-38200464

RESUMO

BACKGROUND: Recombinant human growth hormone (rhGH) therapy is beneficial for children with Prader-Willi syndrome (PWS) in improving short stature and metabolism, but the effect of early rhGH treatment on respiratory and sleep parameters for PWS children under three years old remains elusive. Thus, this study aimed to investigate the impact of rhGH treatment on sleep-related breathing disorders (SRBDs) for toddlers with PWS. METHODS: A total of 17 age-matched PWS patients receiving rhGH treatment (rhGH group) and 17 control individuals not receiving rhGH treatment (non-rhGH group) were recruited for this study between October 2018 and January 2023. Data related to polysomnography-polygraphy (PSG) and serum levels of insulin-like growth factor (IGF-1) and insulin-like growth factor binding protein 3 (IGFBP-3) were collected. RESULTS: The mean age in the rhGH group was 20.76 ± 9.22 months, which was comparable to that of the non-rhGH group (25.23 ± 13.81 months). The demographic and anthropometric parameters were similar across the two groups after 52 weeks of treatment. Administration of rhGH to toddlers did not exert adverse effects on the obstructive apnea-hypopnea index (OAHI), central apnea index (CAI), oxygen desaturation index (ODI), mean percutaneous oxygen saturation (SpO2), lowest SpO2, duration when SpO2 is lower than 90%, or proportion of the patients with SpO2 lower than 90%. Furthermore, the increased IGF-1 z-score and IGFBP-3 level did not worsen SRBDs. CONCLUSION: Treatment with rhGH for 52 weeks on young toddlers with PWS showed no deleterious effects on SRBDs. This shed more light on the importance of initiating rhGH therapy early in PWS patients.


Assuntos
Hormônio do Crescimento Humano , Síndrome de Prader-Willi , Humanos , Pré-Escolar , Lactente , Hormônio do Crescimento Humano/uso terapêutico , Proteína 3 de Ligação a Fator de Crescimento Semelhante à Insulina , Fator de Crescimento Insulin-Like I , Síndrome de Prader-Willi/complicações , Síndrome de Prader-Willi/tratamento farmacológico , Estudos Retrospectivos , Sono
5.
Eur J Pediatr ; 182(10): 4537-4546, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37522979

RESUMO

Idiopathic short stature (ISS) accounts for more than 70% of childhood short stature cases, with an undefined etiology and pathogenesis, leading to limited treatment. However, recent studies have shown that intestinal microbiota may be associated with ISS. This study aimed to characterize the intestinal microbiota in children with ISS, effect of treatment with growth hormones, and association between specific bacterial species and ISS. This study enrolled 55 children, comprising 40 diagnosed with ISS at Jinhua Hospital, Zhejiang University, and 15 healthy controls. The subjects with ISS were divided into the untreated ISS group (UISS group, 22 children who had not been treated with recombinant human growth hormone [rhGH]), treated ISS group (TISS group, 18 children treated with rhGH for 1 year), and control group (NC group, 15 healthy children). High-throughput sequencing was used to determine the intestinal microbiota characteristics. Higher abundances of Bacteroides, Prevotella, Alistipes, Parabacteroides, Agathobacter and Roseburia were found in the UISS and TISS groups than in the control group, whereas Bifidobacterium, Subdoligranulum, and Romboutsia were less abundant. The composition of intestinal microbiota in the UISS and TISS groups was almost identical, except for Prevotella. The TISS group had significantly lower levels of Prevotella than did the UISS group, which were closer to those of the NC group. Receiver operating characteristic curve analysis revealed that the abundances of Prevotella, Bifidobacterium, Bacteroides, and Subdoligranulum were effective in differentiating between the UISS and NC groups. CONCLUSION: Alterations in intestinal microbiota may be associated with ISS. Specific bacterial species, such as Prevotella, may be potential diagnostic markers for ISS. WHAT IS KNOWN: • ISS is associated with the GH-IGF-1 axis. • Recent studies indicated an association between the GH-IGF-1 axis and intestinal microbiota. WHAT IS NEW: • Children with ISS showed alterations in intestinal microbiota, with a relative increase in the abundance of gut inflammation-related bacteria. • The relative abundances of Prevotella, Bacteroides, Bifidobacterium, and Subdoligranulum may serve as potential diagnostic markers.


Assuntos
Microbioma Gastrointestinal , Hormônio do Crescimento Humano , Humanos , Criança , Fator de Crescimento Insulin-Like I/farmacologia , Estudos Transversais , Hormônio do Crescimento Humano/farmacologia , Hormônio do Crescimento , Bactérias/genética , Transtornos do Crescimento , Estatura
6.
Acta Paediatr ; 111(2): 215-224, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34028879

RESUMO

Growth hormone treatment was introduced in the 1950s to address growth disturbances and metabolic abnormalities. Hundreds of thousands of children have been treated, with gradual expansion of treatment indications. From initially being offered only to patients with severe growth hormone deficiency, today many children are treated for conditions in which the associated short stature is not primarily thought to be due to deficient endogenous growth hormone secretion. This review discusses the history, physiology and safety of growth hormone treatment, with focus on the long-term risks of mortality, cardiovascular morbidity and cancer. Conclusion: Continuous follow-up is needed to increase our knowledge of the long-term treatment safety.


Assuntos
Nanismo Hipofisário , Hormônio do Crescimento Humano , Estatura , Criança , Transtornos do Crescimento/tratamento farmacológico , Hormônio do Crescimento , Hormônio do Crescimento Humano/efeitos adversos , Humanos
7.
Clin Genet ; 100(1): 29-39, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33615449

RESUMO

Prader-Willi syndrome (PWS) is a complex genetic disorder with three molecular classes but clinical ascertainment is based on distinctive features. The prevalence of dysmorphic features was studied in 355 PWS participants (61% deletion, 36% maternal disomy [UPD], and 3% imprinting defects) from the National Institute of Health PWS Rare Diseases Clinical Research Network. The effect of growth hormone (GH) treatment on growth and dysmorphic features was compared. Among participants, upslanting palpebral fissures were seen in 23%; strabismus in 42%; abnormal dentition in 32%; small hands in 63% and small feet in 70%; hypopigmentation in 30%; striae in 32% and skin picking in 26%. Compared to those with UPD, participants with deletions were found to be heavier (p = 0.002), had smaller head circumference (HC) (p = 0.009), higher incidence of a flat occiput (p = 0.005); low-anterior hairline (p = 0.04); abnormal dentition (p = 0.009); abdominal striae (p = 0.045), nail abnormalities (p = 0.050), and fair-haired (p < 0.001). Participants in both genetic groups receiving GH were taller (p = 0.005), had larger HCs (p = 0.005), and longer hands (p = 0.049). This study suggested that PWS genetic subtypes and GH treatment can influence growth and dysmorphic features that may impact clinical diagnosis of PWS, such as stature, head shape and appearance of the eyes, nose, and genitalia.


Assuntos
Hormônio do Crescimento/uso terapêutico , Síndrome de Prader-Willi/tratamento farmacológico , Síndrome de Prader-Willi/genética , Adolescente , Adulto , Estatura/genética , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Fenótipo , Adulto Jovem
8.
Rev Endocr Metab Disord ; 22(1): 101-108, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33029711

RESUMO

Growth hormone deficiency (GHD) is a rare but treatable cause of short stature. The diagnosis requires a careful evaluation of clinical history, physical examination and appropriate interpretation of longitudinal growth, with specific features for each period of life. Other clinical findings, in addition to growth failure, may be present and can be related to the etiology and to associated hormone deficiencies. Despite more than 50 years since the first reports of provocative tests of growth hormone (GH) secretion for the diagnosis of GHD, the interpretation of the results remains a matter of debate. When GHD is confirmed, GH treatment is recommended. Treatment is effective and safe, but requires daily injections during many years, which can affect adherence. At the end of longitudinal growth, during the transition phase, it might be necessary to re-evaluate GH secretion. This review summarizes and updates the recent information related to GHD in children, as well the recommendations for treatment.


Assuntos
Hormônio do Crescimento , Criança , Humanos
9.
Endocr Pract ; 27(11): 1128-1132, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33965583

RESUMO

OBJECTIVE: To evaluate the response of incidentally discovered pituitary cysts to growth hormone (GH) treatment. METHODS: A retrospective chart review was performed of children with pituitary cysts on magnetic resonance imaging (MRI) over a 5-year period. Records and images were reviewed, and the results were analyzed using descriptive statistics. Children with pituitary cysts who received GH treatment were compared with those without. RESULTS: We identified 109 children with pituitary cysts, 24 were treated with GH therapy. The average age was 8.5 ± 5.1 years. Children whose initial MRI scan was to evaluate growth hormone deficiency were more commonly male and non-Hispanic White compared with those with scans for other indications (male, 18 of 24 vs 35 of 85, P = .003; White, 23 of 24 vs 58 of 85, P = .004). Among patients who received GH treatment, 12 had follow-up MRI. Six had no change in cyst size and 6 had a decrease in cyst size. We observed no difference in the likelihood of cyst growth between those who received GH and those who did not (0 of 12 cysts with GH vs 1 of 15 cysts without GH showed growth at follow-up). No patient had neurologic deficits attributable to the pituitary cyst at any time. CONCLUSION: In a single-institution, retrospective study, we find no evidence of growth in pituitary cysts in response to GH therapy.


Assuntos
Cistos do Sistema Nervoso Central , Cistos , Hormônio do Crescimento Humano , Neoplasias Hipofisárias , Adolescente , Cistos do Sistema Nervoso Central/diagnóstico por imagem , Cistos do Sistema Nervoso Central/tratamento farmacológico , Criança , Pré-Escolar , Cistos/diagnóstico por imagem , Cistos/tratamento farmacológico , Hormônio do Crescimento , Hormônio do Crescimento Humano/uso terapêutico , Humanos , Imageamento por Ressonância Magnética , Masculino , Estudos Retrospectivos
10.
Endocr Res ; 46(3): 140-147, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33900130

RESUMO

Background: In patients with growth hormone (GH) deficiency, the prediction of adult height before initiation of GH treatment can be helpful to guide clinicians and families. However, data regarding the effectiveness of prediction methods in such patients are limited.Objective: We aimed to investigate the accuracy of the three most used adult height prediction methods [Bayley-Pinneau (BP), Roche-Wainer-Thissen (RWT), and Tanner-Whitehouse 2 (TW2)] by comparing their results with the near-adult height (NAH) data of children treated with GH.Methods: A single-center retrospective study was conducted including patients treated with somatotropin due to GH deficiency. Bone age radiographs were reread by three authors. Adult height predictions were made using BP, RWT, and TW2 methods for each patient.Results: Forty-nine patients with GH deficiency [median age at diagnosis 10.8 (9.2-12.0) years, 63.3% girls, 69.4% prepubertal] were included. Median differences between predicted adult height (PAH) and NAH standard deviation (SD) scores were -0.5, 0.0, and 0.3 for BP, RWT, and TW2 methods, respectively. The rates of PAH within ±1 SD score of NAH were 54.7%, 62.3%, and 77.4% for BP, TW2, and RWT methods, respectively. RWT was the most accurate method in girls, however, it showed a similar efficiency with TW2 in prepubertal patients or those with delayed bone age between 1-2 years, independent of gender.Conclusions: We found that RWT and TW2 methods may be preferable rather than the BP method for predicting adult height in patients with a diagnosis of GH deficiency.


Assuntos
Estatura , Nanismo/diagnóstico , Hormônio do Crescimento Humano/deficiência , Criança , Nanismo/tratamento farmacológico , Feminino , Hormônio do Crescimento Humano/administração & dosagem , Humanos , Masculino , Prognóstico , Estudos Retrospectivos
11.
J Endocrinol Invest ; 43(10): 1485-1492, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32215862

RESUMO

PURPOSE: To analyze whether vitamin D deficiency could condition the growth response to GH therapy, as well as to analyze if GH treatment modifies both seasonal variations and vitamin D levels in these patients. METHODS: Retrospective study in 98 prepubertal children with GH deficiency (GHD), aged 4.1-8.9 years treated with GH. Growth rate and blood testing (calcium, phosphorus, IGF-I, 25(0H)D and PTH) were monitored at diagnostic and every six months until 24 months of treatment. A control group was recruited (247 healthy children, aged 3.8-9.7 years). The criteria of the US Endocrine Society were used for the definition of hypovitaminosis D. RESULTS: There were no significant differences in vitamin D deficiency among control (12.5%) and GHD groups (15.3%) before starting treatment. Growth rate and IGF-1 and PTH increased (p < 0.05) during GH treatment, but there were no significant differences in calcium, phosphorus and 25(OH)D. There were no significant differences in growth rate and IGF-1, calcium and phosphorus levels in relation to the seasons along GH treatment. There was no correlation between 25(OH)D and IGF-1 during GH therapy. In every programmed control, patients with vitamin D deficiency showed lower growth rate (p < 0.05) compared to patients with vitamin D insufficiency or sufficiency. CONCLUSION: GH treatment, at least during the first two years, does not modify the vitamin D levels. Vitamin D deficiency could condition the response to GH therapy so vitamin D monitoring should be considered as part of the routine evaluation of children with GH treatment.


Assuntos
Transtornos do Crescimento/sangue , Transtornos do Crescimento/tratamento farmacológico , Hormônio do Crescimento Humano/uso terapêutico , Vitamina D/sangue , Estudos de Casos e Controles , Criança , Pré-Escolar , Feminino , Seguimentos , Transtornos do Crescimento/epidemiologia , Terapia de Reposição Hormonal , Hormônio do Crescimento Humano/deficiência , Humanos , Masculino , Puberdade/fisiologia , Estudos Retrospectivos , Resultado do Tratamento , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/epidemiologia
12.
Health Care Anal ; 28(3): 266-282, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32056083

RESUMO

The diagnosis of idiopathic short stature (ISS) refers to children who are considerably shorter than average without any identified medical reason. The US Food and Drug Administration (FDA) authorised marketing of recombinant human growth hormone (hGH) for ISS in 2003, while the European Medicines Agency (EMA) refused it in 2007. This paper examines the arguments for these decisions as detailed in selected FDA and EMA documents. It combines argumentative analysis with an approach to policy analysis called 'What's the problem represented to be'. It argues that the FDA presents its approval as an argument for equity of access to the treatment (given that hGH was already authorised for other indications), describing short stature as a potential disadvantage, and assuming that height normalisation is a clinically meaningful result. The EMA, instead, refuses marketing authorisation with an argument that there is an imbalance of risks and benefits, describing ISS as a healthy condition, and arguing that hGH should provide some psychosocial and/or quality of life benefits to children with ISS other than height gain. This paper then discusses how these arguments could be read through different models of disability, particularly through the medical model of disability and the relational, experiential, and cultural understandings of disability.


Assuntos
Bioética , Dissidências e Disputas , Nanismo Hipofisário/terapia , Hormônio do Crescimento Humano/uso terapêutico , Marketing , United States Food and Drug Administration/normas , Criança , Pessoas com Deficiência , Humanos , Estados Unidos
13.
Am J Med Genet A ; 179(2): 219-223, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30556359

RESUMO

Kabuki syndrome (KS) is a multiple congenital malformation syndrome which has been described across all ethnic groups. Most KS patients possess two genetic subtypes: KMT2D-associated, autosomal-dominant KS type 1 (KS1; OMIM 147920); and KDM6A-associated, X-linked-dominant KS type 2. Generalized joint hypermobility is one feature of KS, but its exact incidence and pattern is not well described in the literature. As part of our prospective study on the metabolic and growth effect of GH treatment, we assessed children from our Dutch Kabuki cohort who were eligible for growth hormone therapy. We assessed severity and pattern of joint hypermobility, both before and after 24 months of growth hormone replacement therapy. The prevalence of hypermobility was 31% in boys and 14% in girls using the Beighton score and 69% in boys and 57% in girls using the Bulbena score. This varies from the general population where girls are more affected. After 2 years of growth hormone treatment, there was a statistically significant decrease in the presence of joint hypermobility to 6% using the Bulbena score and none with respect to the Beighton score. We hypothesized that this result suggests a direct effect of growth hormone on connective tissue in patients with KS.


Assuntos
Anormalidades Múltiplas/genética , Proteínas de Ligação a DNA/genética , Face/anormalidades , Doenças Hematológicas/genética , Histona Desmetilases/genética , Instabilidade Articular/genética , Proteínas de Neoplasias/genética , Doenças Vestibulares/genética , Anormalidades Múltiplas/tratamento farmacológico , Anormalidades Múltiplas/fisiopatologia , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Bases de Dados Genéticas , Face/fisiopatologia , Feminino , Hormônio do Crescimento/administração & dosagem , Doenças Hematológicas/tratamento farmacológico , Doenças Hematológicas/fisiopatologia , Humanos , Instabilidade Articular/tratamento farmacológico , Instabilidade Articular/fisiopatologia , Masculino , Mutação , Estudos Prospectivos , Índice de Gravidade de Doença , Doenças Vestibulares/tratamento farmacológico , Doenças Vestibulares/fisiopatologia
14.
Am J Med Genet A ; 179(9): 1826-1835, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31313492

RESUMO

Prader-Willi syndrome (PWS) is a genomic imprinting disorder characterized by infantile hypotonia with a poor suck and failure to thrive, hypogenitalism/hypogonadism, behavior and cognitive problems, hormone deficiencies, hyperphagia, and obesity. The Stanford Binet and Wechsler (WAIS-R; WISC-III) intelligence (IQ) tests were administered on 103 individuals with PWS from two separate cohorts [University of California, Irvine (UCI) (N = 56) and Vanderbilt University (N = 47)] and clinical information obtained including growth hormone (GH) treatment, PWS molecular classes, weight and height. Significantly higher IQ scores (p < .02) were found representing the vocabulary section of the Stanford Binet test in the growth hormone (GH) treated group when compared with non-GH treatment in the pediatric-based UCI PWS cohort with a trend for stabilization of vocabulary IQ scores with age in the GH treated maternal disomy (UPD) 15 subject group. Significant differences (p = .05) were also found in the adult-based Vanderbilt PWS cohort with 15q11-q13 deletion subjects having lower Verbal IQ scores compared with UPD 15. No difference in body mass index was identified based on the PWS molecular class or genetic subtype. Medical care and response to treatment with growth hormone may influence intelligence impacted by PWS genetic subtypes and possibly age, but more studies are needed.


Assuntos
Cromossomos Humanos Par 15/genética , Hormônio do Crescimento/administração & dosagem , Síndrome de Prader-Willi/tratamento farmacológico , Deleção de Sequência/genética , Adolescente , Adulto , Índice de Massa Corporal , Criança , Pré-Escolar , Feminino , Humanos , Inteligência/efeitos dos fármacos , Testes de Inteligência , Masculino , Fenótipo , Síndrome de Prader-Willi/classificação , Síndrome de Prader-Willi/genética , Síndrome de Prader-Willi/patologia , Teste de Stanford-Binet , Escalas de Wechsler , Adulto Jovem
15.
Health Qual Life Outcomes ; 17(1): 49, 2019 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-30885197

RESUMO

BACKGROUND: The Quality of Life of Short Stature Youth (QoLISSY) questionnaire is a patient- and parent-reported outcome measure assessing health-related quality of life (HRQOL) in short stature youth. This study evaluates the psychometric properties of the QoLISSY questionnaire within a German prospective trial of short statured children treated with human growth hormone (hGH). METHOD: The instrument was administered to children with idiopathic growth hormone Deficiency (IGHD) and small for gestational age (SGA) before and after 12 month of hGH treatment. Children with idiopathic short stature (ISS) served as a reference group receiving no treatment. Psychometric testing included scale distribution characteristics, reliability (internal consistency), criterion-and convergent validity (correlations with the generic KIDSCREEN-Index, inter-correlations among QOLISSY subscales), known-group validity (treatment status, height SDS), and responsiveness analysis (ability to detect change). RESULTS: One hundred fifty-two parents and 66 children/adolescents completed both HRQOL assessments. The QoLISSY demonstrated good reliability with Cronbach's alpha > .70. Moderate significant correlations between QoLISSY domains and the KIDSCREEN-10 Index supported criterion validity. Statistically significant differences in HRQOL were observed between treatment groups at baseline with children who were about to start treatment reporting a significantly lower HRQOL compared to the children who will not receive treatment. No significant differences were found between the level of short stature based on height SDS scores (≤ - 2 SDS, > - 2 SDS). Furthermore, the instrument detected significant changes in HRQOL between the treated and the untreated group in patient-reports. CONCLUSIONS: In conclusion, the scales showed satisfactory reliability, adequate validity and ability to detect change in self-reported HRQOL within GH treatment. Findings support QoLISSY's further use in clinical trials, offering the opportunity to adequately assess HRQOL from the patients' and caregivers' perspective to improve patient-centered care.


Assuntos
Transtornos do Crescimento/psicologia , Pais/psicologia , Qualidade de Vida/psicologia , Inquéritos e Questionários/estatística & dados numéricos , Adolescente , Criança , Nanismo/psicologia , Feminino , Alemanha , Hormônio do Crescimento Humano , Humanos , Masculino , Estudos Prospectivos , Psicometria , Reprodutibilidade dos Testes
16.
J Endocrinol Invest ; 42(9): 1067-1076, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30840207

RESUMO

PURPOSE: Little attention has been directed towards examining the impact of predictors on change in health-related quality of life (HRQOL) within the course of growth hormone (GH) treatment in pediatric short stature. We aimed to assess changes in HRQOL and its sociodemographic, clinical and psychosocial predictors in children and adolescents diagnosed with growth hormone deficiency (GHD), and born short for gestational age (SGA) before and 12-month after start of GH treatment from the parents' perspective. Results were compared with an untreated group with idiopathic short stature (ISS). In this prospective multicenter study, 152 parents of children/adolescents (aged 4-18 years) provided data on their children's HRQOL at baseline and at 12-month follow-up. METHOD: Repeated-measures multivariate analyses of covariance were performed to examine parent-reported HRQOL changes from baseline to 1-year after treatment and hierarchical linear regressions to identify the predictors of HRQOL changes. RESULTS: Results showed that parents of children that were treated with GH report an increase in their children's HRQOL after 1 year. Changes in HRQOL were mostly explained by psychosocial predictors followed by sociodemographic and clinical variables. Specifically, the diagnosis SGA significantly predicted a greater increase in parent-reported HRQOL. Furthermore, a lower caregiving burden significantly predicted a decrease in parent-reported HRQOL. CONCLUSION: In conclusion, a substantial percentage of explained variance in HRQOL relates to psychosocial and sociodemographic predictors. However, there appears to be other important factors that are predictors of HRQOL, which need to be determined in large, population-based samples.


Assuntos
Nanismo Hipofisário/psicologia , Hormônio do Crescimento Humano/administração & dosagem , Pais/psicologia , Qualidade de Vida , Inquéritos e Questionários/estatística & dados numéricos , Adolescente , Estatura , Criança , Pré-Escolar , Nanismo Hipofisário/tratamento farmacológico , Feminino , Seguimentos , Humanos , Masculino , Prognóstico , Estudos Prospectivos , Psicometria
17.
Eur J Appl Physiol ; 119(2): 409-418, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30478629

RESUMO

PURPOSE: The effects of growth hormone (GH) treatment on linear growth and body composition have been studied extensively. Little is known about the GH effect on energy expenditure (EE). The aim of this study was to investigate the effects of GH treatment on EE in children, and to study whether the changes in EE can predict the height gain after 1 year. METHODS: Total EE (TEE), basal metabolic rate (BMR), and physical activity level (PAL) measurements before and after 6 weeks of GH treatment were performed in 18 prepubertal children (5 girls, 13 boys) born small for gestational age (n = 14) or with growth hormone deficiency (n = 4) who were eligible for GH treatment. TEE was measured with the doubly labelled water method, BMR was measured with an open-circuit ventilated hood system, PAL was assessed using an accelerometer for movement registration and calculated (PAL = TEE/BMR), activity related EE (AEE) was calculated [AEE = (0.9 × TEE) - BMR]. Height measurements at start and after 1 year of GH treatment were analysed. This is a 1-year longitudinal intervention study, without a control group for comparison. RESULTS: BMR and TEE increased significantly (resp. 5% and 7%). Physical activity (counts/day), PAL, and AEE did not change. 11 out of 13 patients (85%) with an increased TEE after 6 weeks of GH treatment had a good first-year growth response (∆height SDS > 0.5). CONCLUSIONS: GH treatment showed a positive effect on EE in prepubertal children after 6 weeks. No effect on physical activity was observed. The increase in TEE appeared to be valuable for the prediction of good first-year growth responders to GH treatment.


Assuntos
Metabolismo Energético/efeitos dos fármacos , Transtornos do Crescimento/tratamento farmacológico , Hormônio do Crescimento Humano/farmacologia , Metabolismo Basal/efeitos dos fármacos , Composição Corporal/efeitos dos fármacos , Composição Corporal/fisiologia , Índice de Massa Corporal , Criança , Pré-Escolar , Metabolismo Energético/fisiologia , Exercício Físico/fisiologia , Feminino , Transtornos do Crescimento/fisiopatologia , Hormônio do Crescimento Humano/deficiência , Hormônio do Crescimento Humano/uso terapêutico , Humanos , Masculino , Resultado do Tratamento
18.
Pediatr Hematol Oncol ; 36(8): 494-503, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31633441

RESUMO

Growth failure (GF) is a frequent problem after pediatric allogeneic hematopoietic stem cell transplantation (HSCT). Growth hormone deficiency (GHD) occurs in 20 to 85%, but published data on the efficacy of growth hormone treatment (GHT) are conflicting. Currently, there are no recommendations on screening for and treatment of GHD after HSCT. We aimed to describe the management of endocrine follow-up (FU)and details of GHT within European Society for Blood and Marrow Transplantation (EBMT) centers.In a retrospective questionnaire study, all EBMT centers performing pediatric HSCT were invited. Results were evaluated in correlation with the structure of endocrine aftercare (HSCT-clinicians and endocrinologists).The majority of centers (80%) reported endocrine FU by an endocrinologist - either within the HSCT-center or in a separate endocrine clinic. Fifty-four percent reported FU outside of the HSCT-center. As diagnostic tests the insulin-like growth factor IGF-I and insulin-like growth factor binding protein IGFBP3, insulin tolerance test and arginine stimulation test were most frequently used. Sixty-four percent of centers performed GHT and endocrinologists were more likely to prescribe GH (74%) compared to HSCT-clinicians (33%). The most frequent indication for GHT was GHD in 60%, with a distinct different approach of endocrinologists in comparison with HSCT-clinicians.Our study reveals substantial variation in practice and emphasizes the need for endocrine aftercare performed by dedicated endocrinologists in close collaboration with the HSCT-center. Our results indicate that the management of GHT depends on the structure of endocrine aftercare, which is important for the future development and distribution of studies and guidelines.


Assuntos
Hormônio do Crescimento/deficiência , Transplante de Células-Tronco Hematopoéticas/métodos , Condicionamento Pré-Transplante/métodos , Transplante Homólogo/métodos , Endocrinologistas , Feminino , Humanos , Masculino , Estudos Retrospectivos , Inquéritos e Questionários
19.
J Pediatr Nurs ; 49: e63-e73, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31575443

RESUMO

PURPOSE: To achieve understanding of the meanings of mothers' experiences of caring for children receiving growth hormone treatment (GHT). BACKGROUND: Children generally begin GHT at a very early age which means parents have significant responsibilities and often endure a complex and difficult pathway with GHT. DESIGN AND METHODS: Hermeneutic interpretive phenomenology based on the approach of Gadamer that adhered to the consolidated criteria for reporting qualitative research (COREQ) guidelines. See Supplementary File 1. Data collected through interviews and diaries with mothers (n = 16). RESULTS: Mothers' experiences were framed by three concepts: uncertainty, normalisation and stigma. These concepts were used to elaborate on the four major meanings encapsulating their experience of caring for their children receiving GHT: (1) "It's the right thing to do" (Striving for the security and the wellbeing of the child), (2) "Doubting yourself constantly" (Constant uncertainty), (3) "But then you just get used to it I suppose" (Adhering to GHT and lifestyle changes - the new normal), (4) "I hadn't been told anything about it" (Information behaviour; looking for normality and certainty). CONCLUSION: Mothers experienced significant challenges coping with the uncertainties associated with GHT and needed more information and support. The felt stigma of restricted growth, rare medical condition and GHT appeared to hinder some mothers from seeking support. PRACTICE IMPLICATIONS: Healthcare professionals and policy makers need to ensure that services for children receiving GHT include the necessary continuous practical and emotional support for parents along the treatment journey.


Assuntos
Cuidadores/psicologia , Crescimento/efeitos dos fármacos , Hormônio do Crescimento Humano/uso terapêutico , Relações Mãe-Filho/psicologia , Mães/psicologia , Estresse Psicológico/epidemiologia , Adaptação Psicológica , Estatura/efeitos dos fármacos , Criança , Pré-Escolar , Feminino , Seguimentos , Hermenêutica , Humanos , Irlanda , Masculino , Pesquisa Qualitativa , Estigma Social , Apoio Social
20.
Int J Mol Sci ; 20(3)2019 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-30759741

RESUMO

In the state of insulin deficiency, the growth hormone-insulin-like growth factor-I (GH⁻IGF-I) axis is altered due to hepatic GH resistance, which leads to GH hypersecretion and low circulating IGF-I concentration. On the other hand, both growth hormone deficiency (GHD) and GH excess have significant influence on carbohydrate metabolism. These complex interactions are challenging in diagnosing GHD in subjects with type 1 diabetes mellitus (T1DM) and in treating subjects with T1DM with GH. So far, there is only limited clinical experience in GH treatment in patients with T1DM, but recently first reports on metabolic safety and efficacy of GH treatment in subjects with T1DM have been published.


Assuntos
Diabetes Mellitus Tipo 1/tratamento farmacológico , Hormônio do Crescimento Humano/uso terapêutico , Criança , Diabetes Mellitus Tipo 1/metabolismo , Humanos , Fator de Crescimento Insulin-Like I/metabolismo
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