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1.
Reprod Biol Endocrinol ; 22(1): 53, 2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38715065

RESUMO

BACKGROUND: Growth hormone (GH) has been proposed as an adjunct in in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) cycles, especially in women with poor ovarian response. However, it is unclear whether GH supplementation is effective in women with poor embryonic development in the previous IVF cycle. The aim of this study was to evaluate the effectiveness of GH supplementation in IVF/ICSI cycles in women with poor embryonic development in the previous cycle. METHODS: This is a retrospective cohort study from a public fertility center in China, in which we performed propensity score-matching (PSM) for female age and AFC in a ratio of 1:1. We compared the cumulative live birth rate per started cycle, as well as a series of secondary outcomes. We included 3,043 women with poor embryonic development in the previous IVF/ICSI cycle, of which 1,326 had GH as adjuvant therapy and 1,717 had not. After PSM, there were 694 women in each group. RESULTS: After PSM, multivariate analyses showed the cumulative live birth rate to be significantly higher in the GH group than the control group [N = 694, 34.7% vs. N = 694, 27.5%, risk ratio (RR): 1.4 (95%CI: 1.1-1.8)]. Endometrial thickness, number of oocytes retrieved, number of embryos available, and number of good-quality embryos were significantly higher in the GH group compared to controls. Pregnancy outcomes in terms of birth weight, gestational age, fetal sex, preterm birth rate, and type of delivery were comparable. When we evaluated the impact of GH on different categories of female age, the observed benefit in the GH group did not appear to be significant. When we assessed the effect of GH in different AFC categories, the effect of GH was strongest in women with an AFC5-6 (32.2% versus 19.5%; RR 2.0; 95% CI 1.2-3.3). CONCLUSIONS: Women with poor embryonic quality in the previous IVF/ICSI cycles have higher rates of cumulative live birth with GH supplementation.


Assuntos
Coeficiente de Natalidade , Fertilização in vitro , Nascido Vivo , Injeções de Esperma Intracitoplásmicas , Humanos , Feminino , Injeções de Esperma Intracitoplásmicas/métodos , Adulto , Gravidez , Estudos Retrospectivos , Fertilização in vitro/métodos , Nascido Vivo/epidemiologia , Desenvolvimento Embrionário/efeitos dos fármacos , Taxa de Gravidez , China/epidemiologia , Hormônio do Crescimento/administração & dosagem , Hormônio do Crescimento Humano/administração & dosagem , Estudos de Coortes
2.
Front Endocrinol (Lausanne) ; 15: 1398171, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38752175

RESUMO

Introduction: We present the evolution of GHD in adolescent males with persistent growth failure, in whom the diagnosis was established after a second GH stimulation test (GST). Methods: We performed a retrospective chart review of children who presented for short stature (height less < 2SD for mean/mid-parental height) and/or growth failure (sustained growth velocity < 0 SD) to pediatric endocrinology at Mount Sinai Kravis Children's Hospital, New York and who had 2 GSTs. Data collected from electronic medical records were analyzed using SPSS v28.0. Results: Of 53 patients included, 42 were males. Average GH peak on initial GST was 15.48 ± 4.92 ng/ml, at 10.07 ± 2.65 years, mean height -1.68 ± 0.56SD(28% had <2SD), IGF-1 -1.00 ± 0.88SD. After 2.23 ± 1.22 years, at 12.04 ± 2.41years, height SDs decreased to -1.82 ± 0.63SD and IGF-1 was -1.08 ± 0.84SD. At repeat GST, average GH peak was 7.59 ± 2.12 ng/dL, with 36% ≤7 ng/dl and 32% in puberty. 12 males reached adult height of 0.08 ± 0.69 SD with a mean height gain of 1.83 ± 0.56SD(p<0.005), IGF-1 of -1.15 ± 0.81SD after 4.64 ± 1.4 years of GH. Conclusion: We offer evidence for Evolving Growth Hormone Deficiency (EGHD) through repeat GST in children with persistent growth slowdown, even with pubertal progression; emphasizing the need for careful longitudinal follow-up to make accurate diagnosis.


Assuntos
Transtornos do Crescimento , Hormônio do Crescimento Humano , Humanos , Masculino , Hormônio do Crescimento Humano/deficiência , Adolescente , Estudos Retrospectivos , Criança , Feminino , Estatura , Fator de Crescimento Insulin-Like I/metabolismo , Fator de Crescimento Insulin-Like I/deficiência , Estudo de Prova de Conceito , Nanismo Hipofisário/sangue
3.
Zhongguo Dang Dai Er Ke Za Zhi ; 26(3): 224-229, 2024 Mar 15.
Artigo em Chinês | MEDLINE | ID: mdl-38557372

RESUMO

With an increasing understanding of growth hormone deficiency, there has been a growing emphasis on the management of transition growth hormone deficiency (TGHD) in clinical practice. The inadequate diagnosis and treatment of TGHD have been a major clinical concern, leading to the development of relevant guidelines and consensus internationally. This article summarizes the evaluation, diagnosis, treatment, and clinical challenges of TGHD based on these guidelines, consensus, and existing clinical studies, aiming to optimize and further improve the clinical diagnosis, treatment, and management of TGHD.


Assuntos
Nanismo Hipofisário , Hormônio do Crescimento Humano , Humanos , Hormônio do Crescimento Humano/uso terapêutico , Nanismo Hipofisário/diagnóstico , Nanismo Hipofisário/tratamento farmacológico , Estatura , Consenso
5.
Mol Genet Genomic Med ; 12(4): e2439, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38613222

RESUMO

OBJECTIVE: To characterize the phenotype spectrum, diagnosis, and response to growth-promoting therapy in patients with ACAN variants causing familial short stature. METHODS: Three families with ACAN variants causing short stature were reported. Similar cases in the literature were summarized, and the genotype and phenotype were analyzed. RESULTS: Three novel heterozygous variants, c.757+1G>A, (splicing), c.6229delG, p.(Asp2078Tfs*1), and c.6679C>T, p.(Gln2227*) in the ACAN gene were identified. A total of 314 individuals with heterozygous variants from 105 families and 8 individuals with homozygous variants from 4 families were confirmed to have ACAN variants from literature and our 3 cases. Including our 3 cases, the variants reported comprised 33 frameshift, 39 missense, 23 nonsense, 5 splicing, 4 deletion, and 1 translocation variants. Variation points are scattered throughout the gene, while exons 12, 15, and 10 were most common (25/105, 11/105, and 10/105, respectively). Some identical variants existing in different families could be hot variants, c.532A>T, p.(Asn178Tyr), c.1411C>T, p.(Gln471*), c.1608C>A, p.(Tyr536*), c.2026+1G>A, (splicing), and c.7276G>T, p.(Glu2426*). Short stature, early-onset osteoarthritis, brachydactyly, midfacial hypoplasia, and early growth cessation were the common phenotypic features. The 48 children who received rhGH (and GnRHa) treatment had a significant height improvement compared with before (-2.18 ± 1.06 SD vs. -2.69 ± 0.95 SD, p < 0.001). The heights of children who received rhGH (and GnRHa) treatment were significantly improved compared with those of untreated adults (-2.20 ± 1.10 SD vs. -3.24 ± 1.14 SD, p < 0.001). CONCLUSION: Our study achieves a new understanding of the phenotypic spectrum, diagnosis, and management of individuals with ACAN variants. No clear genotype-phenotype relationship of patients with ACAN variants was found. Gene sequencing is necessary to diagnose ACAN variants that cause short stature. In general, appropriate rhGH and/or GnRHa therapy can improve the adult height of affected pediatric patients caused by ACAN variants.


Assuntos
Nanismo , Hormônio do Crescimento Humano , Adulto , Criança , Humanos , Agrecanas , Genótipo , Heterozigoto , Homozigoto , Pacientes , Fenótipo
6.
J Strength Cond Res ; 38(5): 842-847, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38662882

RESUMO

ABSTRACT: Barbosa, PH, Bueno de Camargo, JB, Jonas de Oliveira, J, Reis Barbosa, CG, Santos da Silva, A, Dos-Santos, JW, Verlengia, R, Barreira, J, Braz, TV, and Lopes, CR. Resistance exercise sessions comprising multijoint vs. single-joint exercises result in similar metabolic and hormonal responses, but distinct levels of muscle damage in trained men. J Strength Cond Res 38(5): 842-847, 2024-Resistance-type exercise (RE) elicits distinct acute metabolic and hormonal responses, which can be modulated by the manipulation of training variables. The purpose of this study was to compare the metabolic (blood lactate and estimated lactic anaerobic system energy expenditure) and hormonal (growth hormone [GH]) responses to RE sessions composed exclusively of multijoint (MULTI) or single-joint (SINGLE) exercises. Assessments of creatine kinase (CK) levels were also performed. In a crossover design, 10 recreationally resistance-trained men (age: 26.9 ± 3.0 years, total body mass: 83.2 ± 13.8 kg; height: 176 ± 7.0 cm; training experience: 5.5 ± 2.4 years) were randomly submitted to both protocols. Blood collections were made pre, 3 minutes after, and 36 hours after each experimental session. No significant difference between MULTI vs. SINGLE was observed for the rises in blood lactate (p = 0.057) and GH (p = 0.285) levels. For CK, a significant difference between the protocols was noted, in which MULTI resulted in significant rises after 3 minutes (p = 0.017) and 36 hours (p = 0.043) compared with SINGLE. In conclusion, the findings of this study suggest that resistance-trained individuals display similar metabolic and hormonal responses when performing MULTI and SINGLE exercise protocols. Also, RE sessions comprising MULTI exercises induce a higher magnitude of muscle damage, which may require a longer recovery period compared with SINGLE.


Assuntos
Creatina Quinase , Estudos Cross-Over , Ácido Láctico , Músculo Esquelético , Treinamento Resistido , Humanos , Masculino , Treinamento Resistido/métodos , Ácido Láctico/sangue , Adulto , Músculo Esquelético/lesões , Músculo Esquelético/fisiologia , Músculo Esquelético/metabolismo , Creatina Quinase/sangue , Adulto Jovem , Metabolismo Energético/fisiologia , Hormônio do Crescimento Humano/sangue
8.
Peptides ; 176: 171213, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38604379

RESUMO

Glucagon is best known for its contribution to glucose regulation through activation of the glucagon receptor (GCGR), primarily located in the liver. However, glucagon's impact on other organs may also contribute to its potent effects in health and disease. Given that glucagon-based medicine is entering the arena of anti-obesity drugs, elucidating extrahepatic actions of glucagon are of increased importance. It has been reported that glucagon may stimulate secretion of arginine-vasopressin (AVP)/copeptin, growth hormone (GH) and adrenocorticotrophic hormone (ACTH) from the pituitary gland. Nevertheless, the mechanisms and whether GCGR is present in human pituitary are unknown. In this study we found that intravenous administration of 0.2 mg glucagon to 14 healthy subjects was not associated with increases in plasma concentrations of copeptin, GH, ACTH or cortisol over a 120-min period. GCGR immunoreactivity was present in the anterior pituitary but not in cells containing GH or ACTH. Collectively, glucagon may not directly stimulate secretion of GH, ACTH or AVP/copeptin in humans but may instead be involved in yet unidentified pituitary functions.


Assuntos
Hormônio Adrenocorticotrópico , Glucagon , Glicopeptídeos , Humanos , Glicopeptídeos/metabolismo , Glucagon/metabolismo , Glucagon/sangue , Hormônio Adrenocorticotrópico/sangue , Hormônio Adrenocorticotrópico/metabolismo , Masculino , Adulto , Feminino , Hipófise/metabolismo , Hipófise/efeitos dos fármacos , Hidrocortisona/sangue , Receptores de Glucagon/metabolismo , Hormônio do Crescimento Humano/metabolismo , Hormônio do Crescimento/metabolismo , Hormônio do Crescimento/sangue , Pessoa de Meia-Idade
9.
Front Endocrinol (Lausanne) ; 15: 1364234, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38596219

RESUMO

Silver-Russell syndrome (SRS, OMIM, 180860) is a rare genetic disorder with a wide spectrum of symptoms. The most common features are intrauterine growth retardation (IUGR), poor postnatal development, macrocephaly, triangular face, prominent forehead, body asymmetry, and feeding problems. The diagnosis of SRS is based on a combination of clinical features. Up to 60% of SRS patients have chromosome 7 or 11 abnormalities, and <1% show abnormalities in IGF2 signaling pathway genes (IGF2, HMGA2, PLAG1 and CDKN1C). The underlying genetic cause remains unknown in about 40% of cases (idiopathic SRS). We report a novel IGF2 variant c.[-6-2A>G] (NM_000612) in a child with severe IUGR and clinical features of SRS and confirm the utility of targeted exome sequencing in patients with negative results to common genetic analyses. In addition, we report that long-term growth hormone treatment improves height SDS in this patient.


Assuntos
Hormônio do Crescimento Humano , Síndrome de Silver-Russell , Criança , Feminino , Humanos , Síndrome de Silver-Russell/tratamento farmacológico , Síndrome de Silver-Russell/genética , Síndrome de Silver-Russell/diagnóstico , Hormônio do Crescimento/genética , Herança Paterna , Fenótipo , Hormônio do Crescimento Humano/uso terapêutico , Hormônio do Crescimento Humano/genética , Retardo do Crescimento Fetal/genética , Fator de Crescimento Insulin-Like II/genética
10.
Front Endocrinol (Lausanne) ; 15: 1381083, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38596224

RESUMO

Serum levels of growth hormone (GH) and insulin-like growth factor (IGF)-I are crucial in the diagnosis and management of GH-related diseases. However, these levels are affected by nutritional and metabolic status. To elucidate the correlations between GH and IGF-I in various conditions, a retrospective analysis was performed for adult patients in which GH levels were examined by general practitioners during the period from January 2019 to December 2021. Of 642 patients, 33 patients were diagnosed with acromegaly, 21 were diagnosed with GH deficiency (GHD), and 588 were diagnosed with non-GH-related diseases (NGRD). In contrast to the positive correlations found between the levels of GH and IGF-I in patients with acromegaly (R=0.50; P<0.001) and patients with GHD (R=0.39; P=0.08), a negative correlation was found in the NGRD group (R=-0.23; P<0.001). In that group, the results of multivariable analysis showed that GH levels were predominantly influenced by gender and body mass index (BMI), whereas IGF-I levels were modulated by albumin in addition to age and GH. Of note, in the NGRD group, there was an enhanced negative correlation between GH and IGF-I under conditions of BMI < 22 and albumin < 4.0 g/dL (R=-0.45; P<0.001), and the negative correlation between GH and IGF-I was reinforced by excluding patients with other pituitary diseases and patients taking oral steroids (R=-0.51; P<0.001 and R=-0.59; P<0.001, respectively). Collectively, the results indicate that attention should be given to the presence of a negative correlation between serum levels of GH and IGF-I, especially in lean and low-nutritious conditions.


Assuntos
Acromegalia , Nanismo Hipofisário , Medicina Geral , Hormônio do Crescimento Humano , Adulto , Humanos , Hormônio do Crescimento , Acromegalia/diagnóstico , Peptídeos Semelhantes à Insulina , Fator de Crescimento Insulin-Like I/metabolismo , Estudos Retrospectivos , Albuminas
11.
Front Endocrinol (Lausanne) ; 15: 1373623, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38596226

RESUMO

Hybridization and polyploid breeding are the main approaches used to obtain new aquaculture varieties. Allotriploid crucian carp (3n) with rapid growth performance was generated by mating red crucian carp (RCC) with allotetraploids (4n). Fish growth is controlled by the growth hormone (GH)/insulin-like growth factor (IGF) axis. In the present study, we examined the expression characteristics of GH/IGF axis genes in hybrids F1, 4n, 3n, RCC and common carp (CC). The results showed that GHRa, GHRb, IGF1, IGF2, and IGF-1Ra were highly expressed in 3n compared with RCC and CC, whereas IGF3 was undetectable in the liver in RCC, CC and 3n. GHRa and GHRb had low expression in the 4n group. In hybrid F1, GHRa expression was low, whereas GHRb was highly expressed compared to the levels in RCC and CC. Moreover, in hybrid F1, the expression of IGF3 was higher, and the expression of IGF1 and IGF2 was lower than that in the RCC and CC, whereas the expression of IGF-1Ra was similar to that in RCC and CC. For the IGFBP genes, IGFBP1 had higher expression in 3n compared than that in RCC and CC, while other IGFBP genes were not high expressed in 3n. Among the genes detected in this study, 11 genes were nonadditively expressed in 3n, with 5 genes in the transgressive upregulation model. We proposed that the 11 nonadditive expression of GH/IGF axis genes is related to growth heterosis in 3n. This evidence provides new insights into hybridization and polyploid breeding from the perspective of hormone regulation.


Assuntos
Carcinoma de Células Renais , Carpas , Hormônio do Crescimento Humano , Neoplasias Renais , Animais , Carpas/genética , Carpas/metabolismo , Triploidia , Hormônio do Crescimento/genética , Hormônio do Crescimento/metabolismo , Vigor Híbrido/genética , Peptídeos Semelhantes à Insulina , Hormônio do Crescimento Humano/metabolismo , Proteínas de Ligação a Fator de Crescimento Semelhante a Insulina , Perfilação da Expressão Gênica
12.
Clin Endocrinol (Oxf) ; 100(6): 558-564, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38652736

RESUMO

CONTEXT: Epidemiological studies involving patients with acromegaly have yielded conflicting results regarding cancer incidence and causes of mortality in relation to control of growth hormone (GH) excess. OBJECTIVE: The objective of this retrospective cohort study is to clarify these questions and identify goals for treatment and monitoring patients. METHODS: We studied 1845 subjects from the UK Acromegaly Register (1970-2016), obtaining cancer standardised incidence rates (SIR) and all causes standardised mortality rates (SMR) from UK Office for National Statistics, to determine the relationship between causes of mortality-age at diagnosis, duration of disease, post-treatment and mean GH levels. RESULTS: We found an increased incidence of all cancers (SIR, 1.38; 95% CI: 1.06-1.33, p < .001), but no increase in incidence of female breast, thyroid, colon cancer or any measure of cancer mortality. All-cause mortality rates were increased (SMR, 1.35; 95% CI: 1.24-1.46, p < .001), as were those due to vascular and respiratory diseases. All-cause, all cancer and cardiovascular deaths were highest in the first 5 years following diagnosis. We found a positive association between post-treatment and mean treatment GH levels and all-cause mortality (p < .001 and p < .001), which normalised with posttreatment GH levels of <1.0 µg/L or meantreatment GH levels of <2.5 µg/L. CONCLUSION: Acromegaly is associated with increased incidence of all cancers but not thyroid or colon cancer and no increase in cancer mortality. Excess mortality is due to vascular and respiratory disease. The risk is highest in the first 5 years following diagnosis and is mitigated by normalising GH levels.


Assuntos
Acromegalia , Hormônio do Crescimento Humano , Humanos , Acromegalia/mortalidade , Acromegalia/sangue , Acromegalia/epidemiologia , Acromegalia/complicações , Estudos Retrospectivos , Feminino , Masculino , Hormônio do Crescimento Humano/sangue , Pessoa de Meia-Idade , Reino Unido/epidemiologia , Adulto , Idoso , Neoplasias/mortalidade , Neoplasias/epidemiologia , Neoplasias/complicações , Sistema de Registros , Doenças Respiratórias/mortalidade , Doenças Respiratórias/sangue , Doenças Respiratórias/epidemiologia , Incidência , Doenças Vasculares/mortalidade , Doenças Vasculares/epidemiologia , Doenças Vasculares/sangue , Adulto Jovem , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/sangue
13.
Sci Rep ; 14(1): 8061, 2024 04 05.
Artigo em Inglês | MEDLINE | ID: mdl-38580693

RESUMO

The purpose of this study is to compare the relative efficacy and safety of long-acting growth hormone (LAGH) as a growth hormone replacement therapy in prepubertal children with growth hormone deficiency (GHD). We searched the PubMed, Embase, CNKI, and Wanfang databases from inception to July 2023 and identified eleven relevant studies. PEG-LAGH showed better effect on height velocity (mean difference [MD]: - 0.031, 95% credibility interval [CrI]: - 0.278, 0.215) than somatrogon (MD: 0.105, 95% CrI: - 0.419, 0.636), somapacitan (MD: 0.802, 95% CrI: - 0.451, 2.068) and lonapegsomatropin (MD: 1.335, 95% CrI: - 0.3, 2.989) when compared with daily growth hormone (DGH). Furthermore, in terms of height standard deviation score, PEG-LAGH demonstrated better improvement (MD: - 0.15, 95% CrI: - 1.1, 0.66) than somatrogon (MD: - 0.055, 95% CrI: - 1.3, 0.51) and somapacitan (MD: 0.22, 95% CrI: - 0.91, 1.3). PEG-LAGH (risk ratio [RR]: 1.00, 95% CrI: 0.82, 1.2) reduced the risk of adverse events compared with other LAGH (somatrogon, RR: 1.1, 95% CrI: 0.98, 1.2; somapacitan, RR: 1.1, 95% CrI: 0.96, 1.4; lonapegsomatropin, RR, 1.1, 95% CrI: 0.91, 1.3) and was comparable with DGH. This is the first study to indirectly compare the LAGH thorough a network meta-analysis and provide evidence of the optimal efficacy of various LAGH specifically PEG-LAGH and acceptable safety profile in prepubertal children with GHD.


Assuntos
Nanismo Hipofisário , Hormônio do Crescimento Humano , Criança , Humanos , Hormônio do Crescimento/uso terapêutico , Metanálise em Rede , Hormônio do Crescimento Humano/uso terapêutico , Nanismo Hipofisário/tratamento farmacológico , Transtornos do Crescimento/tratamento farmacológico , Terapia de Reposição Hormonal
14.
Best Pract Res Clin Endocrinol Metab ; 38(3): 101878, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38519400

RESUMO

A small proportion of the patients with acromegaly present with apparently normal basal GH levels and suppressible GH levels despite increased IGF-1 levels, a pattern called micromegaly by some authors. Whether this pattern represents a distinct entity or is just an expression of acromegaly in its early stages is still a matter of debate. Nevertheless, these patients have some peculiar characteristics such as being more likely older and male, mostly harbour microadenomas or small macroadenomas, and have lower IGF-1 and postglucose GH levels. Even though, the frequency and severity of clinical signs and comorbidities are similar to those of patients with classic acromegaly. In conclusion, micromegaly seems to be a distinct clinical entity with a different biological behavior characterized by a low GH output.


Assuntos
Acromegalia , Hormônio do Crescimento Humano , Fator de Crescimento Insulin-Like I , Humanos , Acromegalia/patologia , Acromegalia/sangue , Hormônio do Crescimento Humano/sangue , Hormônio do Crescimento Humano/metabolismo , Fator de Crescimento Insulin-Like I/metabolismo , Masculino , Feminino , Adenoma/complicações , Adenoma/patologia , Adenoma/metabolismo
15.
Clin Endocrinol (Oxf) ; 100(5): 441-446, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38463009

RESUMO

OBJECTIVES: Various biases pertaining to stature account for a male sex predominance in growth hormone deficiency (GHD) cases diagnosed by endocrinology clinics. This manuscript will assess the sex distribution when biases are minimised. METHODS: Retrospective chart review was conducted on patients diagnosed with GHD between 3 and 16 years of age. The sex distribution of cases was ascertained according to: (1) peak GH (pGH) by groups; based on growth hormone provocative testing, (2) pituitary gland imaging results, and (3) isolated GHD (IGHD) versus multiple pituitary hormone deficiencies (MPHD). The relative frequency of each sex was compared according to these subgroups with significance evaluated at α = .05 level. RESULTS: Of the 5880 clinic referrals for short stature, there were 3709 boys (63%) and 2171 girls (37%). Of these, 20% of boys (n = 745) and 15.3% of girls (n = 332) underwent provocative testing for GHD. Of those tested, 39.2% of boys (n = 292) and 32.2% of girls (n = 107) were diagnosed with GHD, all p < .001. There was a male predominance in GHD cases based on pGH or GHD severity. Though not significant, girls were more likely than boys to have MPHD (p = .056), even across pGH groups (p = .06). Both boys and girls had a similar distribution of imaging abnormalities. CONCLUSION: Stratifying by sex, we found similar percentages of pituitary imaging abnormalities (including tumours) and the number of pituitary hormone deficiencies in boys and girls as the cause of GHD. For these classifications, we did not find the historically reported male sex predominance.


Assuntos
Nanismo Hipofisário , Hormônio do Crescimento Humano , Hipopituitarismo , Feminino , Humanos , Criança , Masculino , Estudos Retrospectivos , Hipopituitarismo/epidemiologia , Nanismo Hipofisário/epidemiologia , Hormônio do Crescimento , Distribuição por Sexo
16.
Int J Biol Macromol ; 265(Pt 1): 130641, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38460623

RESUMO

Due to its involvement in skin maintenance and repair, topical administration of recombinant human growth hormone (rhGH) is an interesting strategy for therapeutic purposes. We have formulated and characterized a topical rhGH-loaded liposomal formulation (rhGH-Lip) and evaluated its safety, biological activity, and preventive role against UVB-induced skin damage. The rhGH-Lip had an average size and zeta potential of 63 nm and -33 mV, respectively, with 70 % encapsulation efficiency. The formulation was stable at 4 °C for at least one year. The SDS-PAGE and circular dichroism results showed no structural alterations in rhGH upon encapsulation. In vitro, studies in HaCaT, HFFF-2, and Ba/F3-rhGHR cell lines confirmed the safety and biological activity of rhGH-Lip. Franz diffusion cell study showed increased rhGH skin permeation compared to free rhGH. Animal studies in nude mice showed that liposomal rhGH prevented UVB-induced epidermal hyperplasia, angiogenesis, wrinkle formation, and collagen loss, as well as improving skin moisture. The results of this study show that rhGH-Lip is a stable, safe, and effective skin delivery system and has potential as an anti-wrinkle formulation for topical application. This study also provides a new method for the topical delivery of proteins and merits further investigation.


Assuntos
Hormônio do Crescimento Humano , Camundongos , Animais , Humanos , Hormônio do Crescimento Humano/farmacologia , Hormônio do Crescimento Humano/metabolismo , Camundongos Nus , Pele/metabolismo , Lipossomos/metabolismo , Absorção Cutânea
17.
Arch Pediatr ; 31(3): 165-171, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38538470

RESUMO

Hypopituitarism (or pituitary deficiency) is a rare disease with an estimated prevalence of between 1/16,000 and 1/26,000 individuals, defined by insufficient production of one or several anterior pituitary hormones (growth hormone [GH], thyroid-stimulating hormone [TSH], adrenocorticotropic hormone [ACTH], luteinizing hormone [LH], follicle-stimulating hormone [FSH], prolactin), in association or not with diabetes insipidus (antidiuretic hormone [ADH] deficiency). While in adults hypopituitarism is mostly an acquired disease (tumors, irradiation), in children it is most often a congenital condition, due to abnormal pituitary development. Clinical symptoms vary considerably from isolated to combined deficiencies and between syndromic and non-syndromic forms. Early signs are non-specific but should not be overlooked. Diagnosis is based on a combination of clinical, laboratory (testing of all hormonal axes), imaging (brain magnetic resonance imaging [MRI] with thin slices centered on the hypothalamic-pituitary region), and genetic (next-generation sequencing of genes involved in pituitary development, array-based comparative genomic hybridization, and/or genomic analysis) findings. Early brain MRI is crucial in neonates or in cases of severe hormone deficiency for differential diagnosis and to inform syndrome workup. This article presents recommendations for hormone replacement therapy for each of the respective deficient axes. Lifelong follow-up with an endocrinologist is required, including in adulthood, with multidisciplinary management for patients with syndromic forms or comorbidities. Treatment objectives include alleviating symptoms, preventing comorbidities and acute complications, and optimal social and educational integration.


Assuntos
Hormônio do Crescimento Humano , Hipopituitarismo , Adulto , Criança , Recém-Nascido , Humanos , Hibridização Genômica Comparativa , Hipopituitarismo/diagnóstico , Hipopituitarismo/etiologia , Hipopituitarismo/terapia , Hipófise/patologia , Hormônio Adrenocorticotrópico
18.
Endocrinology ; 165(5)2024 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-38500360

RESUMO

Acromegaly and gigantism are disorders caused by hypersecretion of growth hormone (GH), usually from pituitary adenomas. Although somatostatin analogues (SSA), dopamine agonists, and GH receptor antagonists are important therapeutic agents, all of these have issues with their effectiveness, safety, and/or convenience of use. To overcome these, we developed a GH-specific potent neutralizing a mouse monoclonal antibody (mAb) named 13H02. 13H02 selectively bound both to human and monkey GH with high affinity, and strongly inhibited the biological activity of GH in the Nb2 rat lymphoma cell proliferation assay. In hypophysectomized/GH-supplemented rats, a single subcutaneous administration of 13H02 significantly and dose-dependently lowered the serum insulin-like growth factor-1 levels. To pursue the therapeutic potential of this antibody for acromegaly and gigantism, we humanized 13H02 to reduce its immunogenicity and applied a single amino acid mutation in the Fc region to extend its serum half-life. The resulting antibody, Hu-13H02m, also showed GH-specific neutralizing activity, similar to the parental 13H02, and showed improved binding affinity to human FcRn.


Assuntos
Acromegalia , Gigantismo , Hormônio do Crescimento Humano , Camundongos , Humanos , Feminino , Animais , Ratos , Hormônio do Crescimento Humano/farmacologia , Hormônio do Crescimento Humano/metabolismo , Acromegalia/tratamento farmacológico , Gigantismo/complicações , Gigantismo/tratamento farmacológico , Peptídeos Semelhantes à Insulina , Anticorpos Neutralizantes/farmacologia , Anticorpos Neutralizantes/uso terapêutico , Hormônio do Crescimento/metabolismo , Fator de Crescimento Insulin-Like I/metabolismo , Anticorpos Monoclonais/farmacologia , Anticorpos Monoclonais/uso terapêutico
19.
Growth Horm IGF Res ; 75: 101584, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38489867

RESUMO

OBJECTIVE: Hormonal substitution with growth hormone in aged patients remains a debated research topic and is rarely initiated in clinical practice. This reluctance may originate from concerns about adverse effects and the uncritical use as an anti-aging agent. Nevertheless, beneficial effects for selected patients suffering from certain acute and chronic illnesses could justify its use at an advanced age. This systematic review analyzes randomized controlled studies of GH interventions in older patients with different comorbidities to assess both, beneficial and harmful effects. DESIGN: A systematic search strategy was implemented to identify relevant studies from PubMed, MEDLINE, and The Cochrane Library. INCLUSION CRITERIA: participants aged over 65 years, randomized controlled trials involving human growth hormone (GH) and presence of at least one additional comorbidity independent of a flawed somatotropic axis. RESULTS: The eight eligible studies encompassed various comorbidities including osteoporosis, frailty, chronic heart failure, hip fracture, amyotrophic lateral sclerosis and hemodialysis. Outcomes varied, including changes in body composition, physical performance, strength, bone mineral density, cardiovascular parameters, quality of life and housing situation. Study protocols differed greatly in GH application frequency (daily, 2nd day or 3×/week), doses (0.41 mg-2.6 mg; mean 1.3 mg per 60 kg patient) and duration (1-12 months; mean 7 months). Mild dose-related side effects were reported, alongside noticeable positive impacts particularly on body composition, functionality, and quality of life. CONCLUSION: Despite limited evidence, GH treatment might offer diverse benefits with few adverse effects. Further research with IGF-I dependent indication and clear outcomes, incorporating IGF-I dependent GH titration in older adults is warranted.


Assuntos
Envelhecimento , Hormônio do Crescimento Humano , Idoso , Humanos , Comorbidade , Hormônio do Crescimento , Hormônio do Crescimento Humano/efeitos adversos , Hormônio do Crescimento Humano/uso terapêutico , Fator de Crescimento Insulin-Like I , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Envelhecimento/patologia
20.
J Pediatr Endocrinol Metab ; 37(5): 387-399, 2024 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-38547465

RESUMO

Prompt diagnosis and early treatment are key goals to optimize the outcomes of children with growth hormone deficiency (GHD) and attain the genetically expected adult height. Nonetheless, several barriers can hinder prompt diagnosis and treatment of GHD, including payer-related issues. In Saudi Arabia, moderate-to-severe short stature was reported in 13.1 and 11.7 % of healthy boys and girls, respectively. Several access and payer barriers can face pediatric endocrinologists during the diagnosis and treatment of GHD in Saudi Arabia. Insurance coverage policies can restrict access to diagnostic tests for GHD and recombinant human growth hormone (rhGH) due to their high costs and lack of gold-standard criteria. Some insurance policies may limit the duration of treatment with rhGH or the amount of medication covered per month. This consensus article gathered the insights of pediatric endocrinologists from Saudi Arabia to reflect the access and payer barriers to the diagnostic tests and treatment options of children with short stature. We also discussed the current payer-related challenges endocrinologists face during the investigations of children with short stature. The consensus identified potential strategies to overcome these challenges and optimize patient management.


Assuntos
Consenso , Endocrinologia , Transtornos do Crescimento , Acessibilidade aos Serviços de Saúde , Hormônio do Crescimento Humano , Humanos , Arábia Saudita , Hormônio do Crescimento Humano/uso terapêutico , Hormônio do Crescimento Humano/deficiência , Hormônio do Crescimento Humano/economia , Transtornos do Crescimento/tratamento farmacológico , Transtornos do Crescimento/economia , Acessibilidade aos Serviços de Saúde/economia , Endocrinologia/normas , Criança
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