1
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Gangitano E, Curreli MI, Gandini O, Masi D, Spoltore ME, Gnessi L, Lubrano C. Bone Quality Indices Correlate with Growth Hormone Secretory Capacity in Women Affected by Weight Excess: A Cross-Sectional Study. J Clin Med 2024; 13:5064. [PMID: 39274277 PMCID: PMC11395994 DOI: 10.3390/jcm13175064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 08/14/2024] [Accepted: 08/20/2024] [Indexed: 09/16/2024] Open
Abstract
Background/Objectives: Obesity can be associated with impaired growth hormone (GH) secretion, with possible negative repercussions on bone health. We aimed to investigate the relationships between GH secretory capacity, evaluated with GHRH + arginine stimulation test, and bone parameters, assessed with a dual-energy X-ray absorptiometer, in a population of adult female patients affected by overweight and obesity. Methods: We assessed 276 women affected by overweight or obesity referred to the High-Specialization Center for the Care of Obesity, Umberto I Polyclinic, between 2014 and 2019 with signs or symptoms of growth hormone deficiency (GHD). Results: A total of 97 patients were diagnosed with GHD, and 179 patients with normal GH secretion were considered our control group. GHD patients showed a significantly reduced trabecular bone score (TBS) (p = 0.01). Bone quality parameters corrected for body mass index (BMI) had a positive and significant linear correlation with stimulated GH secretory capacity. Conclusions: In conclusion, bone quality, evaluated by TBS and hip structural analysis, correlates with GH-stimulated secretory capacity. GHD may act as an additive factor in the alteration of bone microarchitecture in patients affected by obesity, who are already at a higher risk of fractures.
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Affiliation(s)
- Elena Gangitano
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | | | - Orietta Gandini
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Davide Masi
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Maria Elena Spoltore
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Lucio Gnessi
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Carla Lubrano
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy
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2
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Kuliczkowska-Płaksej J, Zdrojowy-Wełna A, Jawiarczyk-Przybyłowska A, Gojny Ł, Bolanowski M. Diagnosis and therapeutic approach to bone health in patients with hypopituitarism. Rev Endocr Metab Disord 2024; 25:513-539. [PMID: 38565758 DOI: 10.1007/s11154-024-09878-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/17/2024] [Indexed: 04/04/2024]
Abstract
The results of many studies in recent years indicate a significant impact of pituitary function on bone health. The proper function of the pituitary gland has a significant impact on the growth of the skeleton and the appearance of sexual dimorphism. It is also responsible for achieving peak bone mass, which protects against the development of osteoporosis and fractures later in life. It is also liable for the proper remodeling of the skeleton, which is a physiological mechanism managing the proper mechanical resistance of bones and the possibility of its regeneration after injuries. Pituitary diseases causing hypofunction and deficiency of tropic hormones, and thus deficiency of key hormones of effector organs, have a negative impact on the skeleton, resulting in reduced bone mass and susceptibility to pathological fractures. The early appearance of pituitary dysfunction, i.e. in the pre-pubertal period, is responsible for failure to achieve peak bone mass, and thus the risk of developing osteoporosis in later years. This argues for the need for a thorough assessment of patients with hypopituitarism, not only in terms of metabolic disorders, but also in terms of bone disorders. Early and properly performed treatment may prevent patients from developing the bone complications that are so common in this pathology. The aim of this review is to discuss the physiological, pathophysiological, and clinical insights of bone involvement in pituitary disease.
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Affiliation(s)
- Justyna Kuliczkowska-Płaksej
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland
| | - Aleksandra Zdrojowy-Wełna
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland
| | - Aleksandra Jawiarczyk-Przybyłowska
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland.
| | - Łukasz Gojny
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland
| | - Marek Bolanowski
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wybrzeże Pasteura 4, Wrocław, 50-367, Poland
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3
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Akirov A, Rudman Y, Fleseriu M. Hypopituitarism and bone disease: pathophysiology, diagnosis and treatment outcomes. Pituitary 2024:10.1007/s11102-024-01391-2. [PMID: 38709467 DOI: 10.1007/s11102-024-01391-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/29/2024] [Indexed: 05/07/2024]
Abstract
Hypopituitarism is a rare but significant endocrine disorder characterized by the inadequate secretion of one or more pituitary hormones. The intricate relationship between hypopituitarism and bone health is a topic of growing interest in the medical community. In this review the authors explore associations between hypopituitarism and bone health, with specific examination of the impact of growth hormone deficiency, central hypogonadism, central hypocortisolism, and central hypothyroidism. Pathogenesis, diagnosis, and treatment options as well as challenges posed by osteopenia, osteoporosis, and fractures in hypopituitarism are discussed.
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Affiliation(s)
- Amit Akirov
- Institute of Endocrinology, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
- Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Yaron Rudman
- Institute of Endocrinology, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
- Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Maria Fleseriu
- Pituitary Center, Departments of Medicine and Neurological Surgery, Oregon Health & Science University, Portland, OR, USA.
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4
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Zhao D, Zhuang W, Wang Y, Xu X, Qiao L. In-depth mass spectrometry analysis of rhGH administration altered energy metabolism and steroidogenesis. Talanta 2024; 266:125069. [PMID: 37574608 DOI: 10.1016/j.talanta.2023.125069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/05/2023] [Accepted: 08/09/2023] [Indexed: 08/15/2023]
Abstract
Growth hormone, as a proteohormone, is primarily known of its dramatic effect on longitudinal growth. Recombinant DNA technology has provided a safe, abundant and comparatively cheap supply of human GH for growth hormone-deficient individuals. However, many healthy subjects, especially athletics, administrate GH for enhanced athletic performance or strength. A better and more comprehensive understanding of rhGH effect in healthy individuals is urgent and essential. In this study, we recruited 14 healthy young male and injected rhGH once. Untargeted LC-MS metabolomics profiling of serum and urine was performed before and after the rhGH injection. The GH-induced dysregulation of energy related pathways, such as amino acid metabolism, nucleotide metabolism, glycolysis and TCA cycle, was revealed. Moreover, individuals supplemented with micro-doses of rhGH exhibited significantly changed urinary steroidal profiles, suggesting a role of rhGH in both energy metabolism and steroidogenesis. We expect that our results will be helpful to provide new evidence on the effects of rhGH injection and provide potential biomarkers for rhGH administration.
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Affiliation(s)
- Dan Zhao
- Department of Chemistry, and Shanghai Stomatological Hospital, Fudan University, Shanghai, 200000, China
| | - Wenqian Zhuang
- Research Institute for Doping Control, Shanghai University of Sport, Shanghai, 200000, China
| | - Yang Wang
- Research Institute for Doping Control, Shanghai University of Sport, Shanghai, 200000, China
| | - Xin Xu
- Research Institute for Doping Control, Shanghai University of Sport, Shanghai, 200000, China.
| | - Liang Qiao
- Department of Chemistry, and Shanghai Stomatological Hospital, Fudan University, Shanghai, 200000, China.
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5
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Freda PU. Differences between bone health parameters in adults with acromegaly and growth hormone deficiency: A systematic review. Best Pract Res Clin Endocrinol Metab 2023; 37:101824. [PMID: 37798201 PMCID: PMC10843107 DOI: 10.1016/j.beem.2023.101824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Preserving bone health is an important goal of care of patients with acromegaly and growth hormone deficiency (GHD). Both disorders are associated with compromised bone health and an increased risk of fracture. However, parameters of bone health that are routinely used to predict fractures in other populations, such as aBMD measured by DXA, are unreliable for this in acromegaly and GHD. Additional methodologies need to be employed to assess bone health in these patients. This review summarizes available data on the effects of acromegaly and GHD on parameters of bone health such as aBMD, volumetric bone mineral density (vBMD) and microarchitecture assessed by HRpQCT and other techniques, trabecular bone score (TBS) and fracture assessment. More research is needed to identify reliable predictors of fracture risk and to determine how best to screen for and treat those patients at risk so that bone health is optimized in these patients.
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Affiliation(s)
- Pamela U Freda
- Vagelos College of Physicians and Surgeons, Columbia University, New York.
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6
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Tritos NA. Growth hormone replacement in adults with cured acromegaly: Efficacy and safety. Best Pract Res Clin Endocrinol Metab 2023; 37:101790. [PMID: 37328323 DOI: 10.1016/j.beem.2023.101790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Between 2% and 60% of patients with cured acromegaly may eventually develop growth hormone deficiency. In adults, growth hormone deficiency is associated with abnormal body composition, decreased exercise capacity and quality of life, dyslipidemia, insulin resistance and increased cardiovascular risk. Similar to patients with other sellar lesions, the diagnosis of growth hormone deficiency in adults with cured acromegaly generally requires stimulation testing, with the exception of patients with very low serum insulin-like growth factor I levels and multiple additional pituitary hormone deficiencies. In adults with cured acromegaly, growth hormone replacement may have beneficial effects on body adiposity, muscle endurance, serum lipids and quality of life. Growth hormone replacement is generally well-tolerated. Arthralgias, edema, carpal tunnel syndrome and hyperglycemia may occur in patients with cured acromegaly, as is true of patients with growth hormone deficiency of other etiologies. However, there is evidence of increased cardiovascular risk in some studies of growth hormone replacement in adults with cured acromegaly. More studies are needed to fully establish the beneficial effects and elucidate the risks of growth hormone replacement in adults with cured acromegaly. Until then, growth hormone replacement can be considered in these patients on a case-by-case basis.
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Affiliation(s)
- Nicholas A Tritos
- Neuroendocrine Unit and Neuroendocrine and Pituitary Tumor Clinical Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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7
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Wydra A, Czajka-Oraniec I, Wydra J, Zgliczyński W. The influence of growth hormone deficiency on bone health and metabolisms. Reumatologia 2023; 61:239-247. [PMID: 37745147 PMCID: PMC10515129 DOI: 10.5114/reum/170244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 08/01/2023] [Indexed: 09/26/2023] Open
Abstract
Growth hormone (GH) is a key peptide hormone in the regulation of bone metabolism, through its systemic and paracrine action mediated directly as well as by insulin-like growth factor-1 (IGF-1). Growth hormone exerts pleiotropic effects leading to an increase in linear bone growth, accumulation of bone mineral content and preservation of peak bone mass. Furthermore, it influences protein, lipid, and carbohydrate metabolism.Growth hormone deficiency (GHD) causes a low bone turnover rate leading to reduced bone mineral density (BMD) and increased bone fragility. The results of GH insufficiency are the most pronounced among children as it negatively affects longitudinal bone growth, causing short stature and in adolescents, in whom it hinders the acquisition of peak bone mass. Most studies show that treatment with recombinant human growth hormone (rhGH) in GHD patients could improve BMD and decrease fracture risk. This review aims to summarize the pathophysiology, clinical picture and management of bone complications observed in GHD.
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Affiliation(s)
- Arnika Wydra
- Department of Endocrinology, Centre of Postgraduate Medical Education, Bielanski Hospital, Warsaw, Poland
| | - Izabella Czajka-Oraniec
- Department of Endocrinology, Centre of Postgraduate Medical Education, Bielanski Hospital, Warsaw, Poland
| | - Jakub Wydra
- Department of Internal Medicine, Bielanski Hospital, Warsaw, Poland
| | - Wojciech Zgliczyński
- Department of Endocrinology, Centre of Postgraduate Medical Education, Bielanski Hospital, Warsaw, Poland
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8
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Shen YY, Ma JN, Ren ZY, Liu J, Zhou XY, Xie XR, Ren W. Effects of 18 Months of Growth Hormone Replacement Therapy on Bone Mineral Density in Patients with Adult Growth Hormone Deficiency: A Retrospective Study. Int J Endocrinol 2023; 2023:4988473. [PMID: 37033470 PMCID: PMC10081901 DOI: 10.1155/2023/4988473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/19/2023] [Accepted: 03/11/2023] [Indexed: 04/03/2023] Open
Abstract
OBJECTIVE The effect of physiological dose growth hormone (GH) replacement therapy on bone mineral density (BMD) in adults with growth hormone deficiency (GHD) is not well defined. We aimed to investigate the effects of 18 months of treatment with recombinant human growth hormone (rhGH) at physiological doses on BMD, body composition (BC), and quality of life (QoL). METHODS Sixty-eight patients diagnosed with adult growth hormone deficiency (AGHD) in our hospital were included in this retrospective study. All patients received individualized rhGH replacement to maintain normal serum insulin-like growth factor-1 (IGF-1) levels. BMD and BC measurements were performed by dual energy X-ray absorptiometry (DXA). Excluding those with incomplete follow-up data, we analyzed BMD in 68 patients, as well as BC and QoL in 36 of them. RESULTS Compared with the baseline, lumbar spine BMD decreased by 0.008 g/cm2 (P=0.006) and increased by 0.011 g/cm2 (P=0.045) at month 18, and total hip BMD decreased by 0.005 g/cm2 (P=0.008) and did not change significantly from the baseline at month 18. The changes in BMD did not differ by sex, and the increase in BMD was more pronounced in patients with low Z-scores at the baseline (lumbar spine: P=0.005 and total hip: P=0.018). The percentage change from the baseline in BMD was greater for the lumbar spine than for the total hip (P=0.003). Lean body mass (LBM) increased significantly (P=0.012), total body fat ratio (TBF%) decreased significantly (P=0.011), visceral adipose tissue (VAT) decreased significantly (P=0.016), and QoL improved significantly (P < 0.001). CONCLUSIONS Within 18 months of treatment, bone resorption manifested first, BMD decreased to a nadir at month 6, and then it increased. The increase in BMD was greater in the lumbar spine than in the hip, and the increase was more pronounced in patients with low BMD. Eighteen months of rhGH replacement therapy significantly improved lumbar spine BMD and improved BC and QoL.
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Affiliation(s)
- Ya-Yin Shen
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jia-Ni Ma
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zi-Yu Ren
- Department of Endocrinology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jie Liu
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xin-Yi Zhou
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xue-Rui Xie
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Ren
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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9
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Skeletal Characteristics of Children and Adolescents with Turner Syndrome. ENDOCRINES 2022. [DOI: 10.3390/endocrines3030038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Turner syndrome (TS) is a chromosomal disorder characterized by a short stature and gonadal dysgenesis, the latter of which requires estrogen replacement therapy (ERT) to induce and maintain secondary sexual characteristics. Insufficient ERT is associated with compromised skeletal health, including bone fragility, in adults with TS. In particular, estrogen insufficiency during adolescence is critical because the acquisition of a defective bone mass during this period results in impaired bone strength later in the life. In addition to bone mass, bone geometry is also a crucial factor influencing bone strength; therefore, a more detailed understanding of the skeletal characteristics of both bone mass and geometry during childhood and adolescence and their relationships with the estrogen status is needed to prevent compromised skeletal health during adulthood in TS. Although a delay in the initiation of ERT is associated with a lower bone mineral density during adulthood, limited information is currently available on the effects of ERT during adolescence on bone geometry. Herein, we summarize the current knowledge on skeletal characteristics in children and adolescents with TS and their relationships with estrogen sufficiency, and discuss the potential limitations of the current protocol for ERT during adolescence in order to achieve better skeletal health in adulthood.
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10
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Liu S, Yang H, Xu H, Zhou Z, Bai X, Wang L, Duan L, Gong F, Zhu H, Pan H. Reduced Bone Mineral Density in Middle-Aged Male Patients with Adult Growth Hormone Deficiency. Horm Metab Res 2022; 54:450-457. [PMID: 35556240 DOI: 10.1055/a-1850-7461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/12/2022] [Indexed: 11/04/2022]
Abstract
The aim of the work was to investigate the bone mineral density (BMD) in middle-aged male patients with both childhood-onset (CO) and adulthood-onset (AO) adult growth hormone deficiency (AGHD). In this retrospective cross-sectional study in a major medical center in China, dual X-ray absorptiometry was performed in 50 male AGHD patients (average age was 35.2±9.8 years) and 50 age- and BMI-matched non-athletic healthy men. BMD was compared between AGHD patients and controls. Compared with healthy controls, AGHD group had significantly decreased IGF-1 (p1<0.001) and IGF-1 SDS (p1<0.001). Serum testosterone levels were significantly lower in AGHD patients (p1<0.001), mainly in AO AGHD patients (p3<0.001). The BMD of the femoral neck, trochanter, femoral shaft, total hip, and lumbar spine were significantly lower in all AGHD patients compared with healthy controls (all p1<0.05), especially in CO AGHD patients (all p2<0.05). Multiple stepwise linear regression indicated AGHD was negatively correlated with BMD at each site (β<0, p<0.05). Additionally, serum testosterone level was an independent influencing factor of BMD of the femoral neck (β=0.256, p=0.018) and lumbar spine (β=0.219, p=0.040). BMD was significantly reduced in AGHD patients, especially in CO AGHD patients. Our data suggested that the status of growth hormone deficiency and testosterone level were important for maintaining of bone mineral density in middle-aged male patients with AGHD.
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Affiliation(s)
- Shanshan Liu
- Endocrinology, Peking Union Medical College Hospital, Dongcheng-qu, China
- Graduate School, Hebei North University, Zhangjiakou, China
| | - Hongbo Yang
- Department of Endocrinology, Peking Union Medical College Hospital, Dongcheng-qu, China
| | - Hanyuan Xu
- Endocrinology, Peking Union Medical College Hospital, Beijing, China
| | - Zhibo Zhou
- Department of Endocrinology, Peking Union Medical College Hospital, Dongcheng-qu, China
| | - Xi Bai
- Endocrinology, Peking Union Medical College Hospital Department of Endocrinology, Beijing, China
| | - Linjie Wang
- Department of Endocrinology, Peking Union Medical College Hospital, Dongcheng-qu, China
| | - Lian Duan
- Endocrinology, Peking Union Medical College Hospital, Beijing, China
| | - Fengying Gong
- Endocrinology, Peking Union Medical College Hospital, Dongcheng-qu, China
| | - Huijuan Zhu
- Endocrinology Dept., Peking Union Medical College Hospital, Dongcheng-qu, China
| | - Hui Pan
- Department of Endocrinology, Peking Union Medical College Hospital, Dongcheng-qu, China
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11
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Johannsson G, Touraine P, Feldt-Rasmussen U, Pico A, Vila G, Mattsson AF, Carlsson M, Korbonits M, van Beek AP, Wajnrajch MP, Gomez R, Yuen KCJ. Long-term Safety of Growth Hormone in Adults With Growth Hormone Deficiency: Overview of 15 809 GH-Treated Patients. J Clin Endocrinol Metab 2022; 107:1906-1919. [PMID: 35368070 PMCID: PMC9202689 DOI: 10.1210/clinem/dgac199] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Indexed: 01/16/2023]
Abstract
CONTEXT Data on long-term safety of growth hormone (GH) replacement in adults with GH deficiency (GHD) are needed. OBJECTIVE We aimed to evaluate the safety of GH in the full KIMS (Pfizer International Metabolic Database) cohort. METHODS The worldwide, observational KIMS study included adults and adolescents with confirmed GHD. Patients were treated with GH (Genotropin [somatropin]; Pfizer, NY) and followed through routine clinical practice. Adverse events (AEs) and clinical characteristics (eg, lipid profile, glucose) were collected. RESULTS A cohort of 15 809 GH-treated patients were analyzed (mean follow-up of 5.3 years). AEs were reported in 51.2% of patients (treatment-related in 18.8%). Crude AE rate was higher in patients who were older, had GHD due to pituitary/hypothalamic tumors, or adult-onset GHD. AE rate analysis adjusted for age, gender, etiology, and follow-up time showed no correlation with GH dose. A total of 606 deaths (3.8%) were reported (146 by neoplasms, 71 by cardiac/vascular disorders, 48 by cerebrovascular disorders). Overall, de novo cancer incidence was comparable to that in the general population (standard incidence ratio 0.92; 95% CI, 0.83-1.01). De novo cancer risk was significantly lower in patients with idiopathic/congenital GHD (0.64; 0.43-0.91), but similar in those with pituitary/hypothalamic tumors or other etiologies versus the general population. Neither adult-onset nor childhood-onset GHD was associated with increased de novo cancer risks. Neutral effects were observed in lipids/fasting blood glucose levels. CONCLUSION These final KIMS cohort data support the safety of long-term GH replacement in adults with GHD as prescribed in routine clinical practice.
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Affiliation(s)
- Gudmundur Johannsson
- Department of Endocrinology, Sahlgrenska University Hospital & Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45, Gothenburg, Sweden
| | - Philippe Touraine
- Department of Endocrinology and Reproductive Medicine, Center for Rare Endocrine and Gynecological Disorders, Sorbonne Université, Assistance Publique Hopitaux de Paris, Paris, France
| | - Ulla Feldt-Rasmussen
- Department of Endocrinology and Metabolism, Rigshospitalet, and Department of Clinical Medicine, Faculty of Health and Clinical Science, Copenhagen University, Copenhagen, Denmark
| | - Antonio Pico
- Biomedical Research Networking Center in Rare Diseases (CIBERER), Institute of Health Carlos III (ISCIII), Madrid, Spain
- Hospital General Universitario de Alicante-Institute for Health and Biomedical Research (ISABIAL), Alicante, Spain
- Department of Clinical Medicine, Miguel Hernández University, Elche, Spain
| | - Greisa Vila
- Clinical Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | | | | | - Márta Korbonits
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - André P van Beek
- Department of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Michael P Wajnrajch
- Rare Disease, Biopharmaceuticals, Pfizer, New York, NY, USA
- Department of Pediatrics, New York University Langone Medical Center, New York, NY, USA
| | - Roy Gomez
- European Medical Affairs, Pfizer, Brussels, Belgium
| | - Kevin C J Yuen
- Correspondence: Kevin CJ Yuen, MD, Barrow Pituitary Center, Barrow Neurological Institute, 124 West Thomas Road, Suite 300, Phoenix, AZ 85013, USA.
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Mazziotti G, Lania AG, Canalis E. Skeletal disorders associated with the growth hormone-insulin-like growth factor 1 axis. Nat Rev Endocrinol 2022; 18:353-365. [PMID: 35288658 DOI: 10.1038/s41574-022-00649-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/09/2022] [Indexed: 11/08/2022]
Abstract
Growth hormone (GH) and insulin-like growth factor 1 (IGF1) are important regulators of bone remodelling and metabolism and have an essential role in the achievement and maintenance of bone mass throughout life. Evidence from animal models and human diseases shows that both GH deficiency (GHD) and excess are associated with changes in bone remodelling and cause profound alterations in bone microstructure. The consequence is an increased risk of fractures in individuals with GHD or acromegaly, a condition of GH excess. In addition, functional perturbations of the GH-IGF1 axis, encountered in individuals with anorexia nervosa and during ageing, result in skeletal fragility and osteoporosis. The effect of interventions used to treat GHD and acromegaly on the skeleton is variable and dependent on the duration of the disease, the pre-existing skeletal state, coexistent hormone alterations (such as those occurring in hypogonadism) and length of therapy. This variability could also reflect the irreversibility of the skeletal structural defect occurring during alterations of the GH-IGF1 axis. Moreover, the effects of the treatment of GHD and acromegaly on locally produced IGF1 and IGF binding proteins are uncertain and in need of further study. This Review highlights the pathophysiological, clinical and therapeutic aspects of skeletal fragility associated with perturbations in the GH-IGF1 axis.
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Affiliation(s)
- Gherardo Mazziotti
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele Milan, Italy.
- Endocrinology, Diabetology and Andrology Unit - Bone Diseases and Osteoporosis Section, IRCCS, Humanitas Research Hospital, Rozzano, Milan, Italy.
| | - Andrea G Lania
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele Milan, Italy
- Endocrinology, Diabetology and Andrology Unit - Bone Diseases and Osteoporosis Section, IRCCS, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Ernesto Canalis
- Departments of Orthopaedic Surgery and Medicine, UConn Health, Farmington, CT, USA
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13
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Dichtel LE, Haines MS, Gerweck AV, Bollinger B, Kimball A, Schoenfeld D, Bredella MA, Miller KK. Impact of GH administration on skeletal endpoints in adults with overweight/obesity. Eur J Endocrinol 2022; 186:619-629. [PMID: 35315344 PMCID: PMC9400128 DOI: 10.1530/eje-21-1061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 03/21/2022] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Overweight/obesity is associated with relative growth hormone (GH) deficiency and increased fracture risk. We hypothesized that GH administration would improve bone endpoints in individuals with overweight/obesity. DESIGN An 18-month, randomized, double-blind, placebo-controlled study of GH, followed by 6-month observation. METHODS In this study, 77 adults (53% men), aged 18-65 years, BMI ≥ 25 kg/m2, and BMD T- or Z-score ≤ -1.0 were randomized to daily subcutaneous GH or placebo, targeting IGF1 in the upper quartile of the age-appropriate normal range. Forty-nine completed 18 months. DXA, volumetric quantitative CT, and high-resolution peripheral quantitative CT were performed. RESULTS Pre-treatment mean age (48 ± 12 years), BMI (33.1 ± 5.7 kg/m2), and BMD were similar between groups. P1NP, osteocalcin, and CTX increased (P < 0.005) and visceral adipose tissue decreased (P = 0.04) at 18 months in the GH vs placebo group. Hip and radius aBMD, spine and tibial vBMD, tibial cortical thickness, and radial and tibial failure load decreased in the GH vs placebo group (P < 0.05). Between 18 and 24 months (post-treatment observation period), radius aBMD and tibia cortical thickness increased in the GH vs placebo group. At 24 months, there were no differences between the GH and placebo groups in bone density, structure, or strength compared to baseline. CONCLUSIONS GH administration for 18 months increased bone turnover in adults with overweight/obesity. It also decreased some measures of BMD, bone microarchitecture, and bone strength, which all returned to pre-treatment levels 6 months post-therapy. Whether GH administration increases BMD with longer treatment duration, or after mineralization of an expanded remodeling space post-treatment, requires further investigation.
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Affiliation(s)
- Laura E. Dichtel
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Melanie S. Haines
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Anu V. Gerweck
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
| | - Bryan Bollinger
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
| | - Allison Kimball
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - David Schoenfeld
- Harvard Medical School, Boston, Massachusetts
- Biostatistics Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Miriam A. Bredella
- Harvard Medical School, Boston, Massachusetts
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts
| | - Karen K. Miller
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
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14
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Rossini A, Lanzi R, Galeone C, Pelucchi C, Pennacchioni M, Perticone F, Sirtori M, Losa M, Rubinacci A. Bone and body composition analyses by DXA in adults with GH deficiency: effects of long-term replacement therapy. Endocrine 2021; 74:666-675. [PMID: 34331234 DOI: 10.1007/s12020-021-02835-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 07/20/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE The effects of growth hormone (GH) replacement on bone mass and body composition in adult with GH deficiency (AGHD) are still debated with regard to their persistence in the long term. Moreover, the impact of the gender on the response to GH is controversial. Aim of this study was to evaluate the long-term effects of rhGH replacement on bone mass and body composition in a monocentric cohort of patients with AGHD. METHODS Data from 118 patients with AGHD (34.8 ± 14.4 years, 43 women and 75 men) treated with rhGH for a period of at least 3 years up to a maximum of 10 were retrospectively collected. Bone mineral density (BMD) at the lumbar spine, femur, and 1/3 radius, and total and truncular body composition were evaluated by dual-energy X-ray absorption (DXA) before and during treatment. Clinical and laboratory evaluations were performed before and during the treatment period on an annual basis. RESULTS Lumbar spine BMD consistently increased in males, while it decreased in females after a transient improvement observed during the first 4 years of therapy. There were no significant changes in femoral and 1/3 radial BMD in either sexes. Lean mass significantly increased in both sexes, while fat mass only decreased in males. CONCLUSIONS In AGHD patients long-term rhGH replacement therapy induces a positive effect with regard to bone mass and body composition. A sexual dimorphism in the response to treatment is evident, with males displaying a more favorable outcome.
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Affiliation(s)
- Alessandro Rossini
- Endocrinology and Diabetes Unit, ASST Papa Giovanni XXIII, Piazza OMS 1, Bergamo, 24127, Italy.
| | - Roberto Lanzi
- Endocrinology Unit, San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Carlotta Galeone
- Bicocca Applied Statistics Center (B-ASC), Università degli Studi di Milano-Bicocca, Milano, Lombardia, Italy
| | - Claudio Pelucchi
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Mario Pennacchioni
- AnacletoLab, Department of Computer Science, University of Milan, Milan, Italy
| | - Francesca Perticone
- Endocrinology Unit, San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Marcella Sirtori
- Bone Metabolic Unit, San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Marco Losa
- Neurosurgery Unit, San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Alessandro Rubinacci
- Bone Metabolic Unit, San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
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15
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Johannsson G, Ragnarsson O. Growth hormone deficiency in adults with hypopituitarism-What are the risks and can they be eliminated by therapy? J Intern Med 2021; 290:1180-1193. [PMID: 34605087 DOI: 10.1111/joim.13382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Growth hormone (GH) deficiency develops early in patients with hypothalamic-pituitary disorders and is therefore common among these patients. GH deficiency in adults is associated with increased morbidity, increased body fat mass, abdominal obesity, dyslipidaemia, reduced exercise capacity, impaired cardiac function as well as reduced self-reported well-being and impaired quality of life. Since recombinant human GH became available as replacement therapy more than 25 years ago, randomised controlled trials and long-term studies, together with meta-analyses, have shown improved outcomes in adult patients with hypopituitarism receiving GH. Many of the features associated with GH deficiency in adults improve, or even normalize, and the safety profile is reassuring. The increased interest in GH deficiency in adults with hypothalamic-pituitary disorders has also contributed to the identification of other factors of importance for an outcome such as the replacement of other pituitary hormone deficiencies, and the management of the underlying hypothalamic-pituitary disease, most commonly a pituitary tumour. In this narrative review, we summarize the burden of GH deficiency in adults with hypopituitarism, the impact of GH replacement on the outcome, as well as safety. Based on currently available data, GH replacement should be considered routine management of adults with hypopituitarism.
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Affiliation(s)
- Gudmundur Johannsson
- Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Endocrinology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Oskar Ragnarsson
- Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Endocrinology, Sahlgrenska University Hospital, Gothenburg, Sweden
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16
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Carrone F, Ariano S, Piccini S, Milani D, Mirani M, Balzarini L, Lania AG, Mazziotti G. Update on vertebral fractures in pituitary diseases: from research to clinical practice. Hormones (Athens) 2021; 20:423-437. [PMID: 33606197 DOI: 10.1007/s42000-021-00275-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/26/2021] [Indexed: 12/20/2022]
Abstract
Derangement of pituitary hormone axes can induce changes in bone remodeling and metabolism with possible alterations in bone microarchitectural structure and increased susceptibility to fractures. Vertebral fractures (VFs), which are a hallmark of skeletal fragility, have been described in a very large number of patients with pituitary diseases. These fractures are clinically relevant, since they predispose to further fractures and may negatively impact on patients' quality of life. However, the management of skeletal fragility and VFs in the specific setting of pituitary diseases is a challenge, since the awareness for this disease is still low, prediction of VFs is uncertain, the diagnosis of VFs cannot be solely based on a clinical approach and also needs a radiological and morphometric approach, the risk of fractures may not be decreased via treatment of pituitary hormone disorders, and the effectiveness of bone-active drugs in this setting is not always evidence-based. This review is an update on skeletal fragility in patients with pituitary diseases, with a focus on clinical and therapeutic aspects concerning the management of VFs.
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Affiliation(s)
- Flaminia Carrone
- Endocrinology, Diabetology and Andrology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, MI, Italy
| | - Salvatore Ariano
- Endocrinology, Diabetology and Andrology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, MI, Italy
| | - Sara Piccini
- Endocrinology, Diabetology and Andrology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, MI, Italy
| | - Davide Milani
- Neurosurgery Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089, MI, Italy
| | - Marco Mirani
- Endocrinology, Diabetology and Andrology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, MI, Italy
| | - Luca Balzarini
- Department of Radiology, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089, MI, Italy
| | - Andrea Gerardo Lania
- Endocrinology, Diabetology and Andrology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, MI, Italy.
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090, MI, Italy.
| | - Gherardo Mazziotti
- Endocrinology, Diabetology and Andrology Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, MI, Italy.
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090, MI, Italy.
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Abstract
Growth hormone deficiency (GHD) generally occurs in patients with Cushing's disease (CD) as a consequence of cortisol excess. Mass effect may contribute to the development of GHD in the minority of patients with CD due to corticotroph macroadenomas. Patients with CD in remission are at considerable risk of GH deficiency as a consequence of pituitary surgery or radiation therapy. The purpose of the present review is to summarize data on GH deficiency in adults with CD. Untreated GH deficiency is associated with increased visceral adiposity, decreased lean mass, bone mass, and exercise capacity, impaired linear growth (in children), dyslipidemia, insulin resistance and impaired quality of life. Evaluation and treatment of GHD should be considered in patients with CD in remission. Serum insulin-like growth factor I (IGF-I) can be helpful in the diagnosis of GHD among patients with multiple additional pituitary hormone deficiencies. The diagnosis of GHD generally requires dynamic testing, including insulin, glucagon or macimorelin stimulation. Growth hormone replacement may improve body composition, bone density, linear growth (in children), exercise capacity, dyslipidemia and quality of life. While generally safe, GH replacement requires careful monitoring to assure effectiveness and tolerance in treated patients.
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Affiliation(s)
- Nicholas A Tritos
- Neuroendocrine Unit and Neuroendocrine and Pituitary Tumor Clinical Center, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
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18
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Schweizer R, Donner J, von Lukowicz B, Bauer JL, Binder G. Stable bone density in adolescents with severe growth hormone deficiency after six months off rhGH. Bone 2021; 142:115771. [PMID: 33246146 DOI: 10.1016/j.bone.2020.115771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 10/31/2020] [Accepted: 11/21/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Severe growth hormone deficiency causes lean body mass loss in male adolescents and increased fat mass in both sexes. The changes appear after a 6 month GH pause. AIM The aim was to examine bone density and structure changes in adolescents with severe GHD during a 6-month rhGH treatment interruption. PATIENTS AND METHODS In total, 113 adolescents (20 females) paused rhGH treatment for 6 months at near-final height, and they were retested with arginine-GHRH challenge and basal IGF-1. Severe GHD was diagnosed in 19 individuals (5 females, GH peak <16 ng/ml and IGF-1 < -1.9 SDS) and excluded in 94 (15 females). Bone density and structure were measured by pQCT of the forearm and DXA of the total body at cessation of rhGH and 6 months later. RESULTS In severe adolescent GHD (sGHD) patients, trabecular density (mg/cm3) decreased from 214 to 202 (p < 0.01); changes in the adolescents with normal test results (tGHD) were from 221 to 214 (p < 0.05). Cortical density (mg/cm3) increased from 1077 to 1099 (p < 0.01) in sGHD patients and from 1060 to 1082 in tGHD patients (p < 0.001). The strength strain index (mm3) showed no significant changes in sGHD patients (306 to 307) but changed from 302 to 315 in tGHD patients (p < 0.05). Total bone area (mm2) shifted from 145.1 to 145.2 in sGHD patients and from 153 to 156 in tGHD patients. Total body aBMD (g/cm2) increased in both groups: from 1.10 to 1.12 in sGHD patients and from 1.11 to 1.14 in tGHD patients (p < 0.01). All bone measurements remained within the reference ranges, and there were no differences between sGHD and tGHD patients. CONCLUSION During a 6-month pause of rhGH treatment, the bone structure and density of adolescents with sGHD did not show changes implying harm. Routine retesting of adolescents, including 6 months without GH, is unlikely to be detrimental to the bone.
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Affiliation(s)
- Roland Schweizer
- University Children's Hospital, Pediatric Endocrinology, Hoppe-Seyler-Strasse 1, 72076 Tübingen, Germany.
| | - Julia Donner
- Hasbro Children's Hospital Department of Pediatrics, Providence, RI, United States of America
| | - Bettina von Lukowicz
- University Children's Hospital, Pediatric Endocrinology, Hoppe-Seyler-Strasse 1, 72076 Tübingen, Germany
| | - Jana Leonie Bauer
- University Children's Hospital, Pediatric Endocrinology, Hoppe-Seyler-Strasse 1, 72076 Tübingen, Germany
| | - Gerhard Binder
- University Children's Hospital, Pediatric Endocrinology, Hoppe-Seyler-Strasse 1, 72076 Tübingen, Germany
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19
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Aulinas A, Guarda FJ, Yu EW, Haines MS, Asanza E, Silva L, Tritos NA, Verbalis J, Miller KK, Lawson EA. Lower Oxytocin Levels Are Associated with Lower Bone Mineral Density and Less Favorable Hip Geometry in Hypopituitary Men. Neuroendocrinology 2021; 111:87-98. [PMID: 32074621 PMCID: PMC8372692 DOI: 10.1159/000506638] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/19/2020] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Hypopituitary patients are at risk for bone loss. Hypothalamic-posterior pituitary hormones oxytocin and vasopressin are anabolic and catabolic, respectively, to the skeleton. Patients with hypopituitarism may be at risk for oxytocin deficiency. Whether oxytocin and/or vasopressin contribute to impaired bone homeostasis in hypopituitarism is unknown. OBJECTIVES To determine the relationship between plasma oxytocin and vasopressin levels and bone characteristics (bone mineral density [BMD] and hip structural analysis [HSA]) in patients who have anterior pituitary deficiencies only (APD group) or with central diabetes insipidus (CDI group). METHODS This is a cross-sectional study. Subjects included 37 men (17 CDI and 20 APD), aged 20-60 years. Main outcome measures were fasting plasma oxytocin and vasopressin levels, and BMD and HSA using dual X-ray absorptiometry. RESULTS Mean BMD and HSA variables did not differ between the CDI and APD groups. Mean BMD Z-scores at most sites were lower in those participants who had fasting oxytocin levels below, rather than above, the median. There were positive associations between fasting oxytocin levels and (1) BMD Z-scores at the spine, femoral neck, total hip, and subtotal body and (2) favorable hip geometry and strength variables at the intertrochanteric region in CDI, but not APD, participants. No associations between vasopressin levels and bone variables were observed in the CDI or ADP groups. CONCLUSIONS This study provides evidence for a relationship between oxytocin levels and BMD and estimated hip geometry and strength in hypopituitarism with CDI. Future studies will be important to determine whether oxytocin could be used therapeutically to optimize bone health in patients with hypopituitarism.
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Affiliation(s)
- Anna Aulinas
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, Unidad 747), ISCIII, Barcelona, Spain
| | - Francisco J Guarda
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Endocrinology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Center of Translational Endocrinology (CETREN), Pontificia Universidad Católica de Chile, Santiago, Chile
- Programa de Tumores Hipofisarios, Red de Salud UC-CHRISTUS, Santiago, Chile
| | - Elaine W Yu
- Harvard Medical School, Boston, Massachusetts, USA
- Endocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Melanie S Haines
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Elisa Asanza
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Lisseth Silva
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Nicholas A Tritos
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Joseph Verbalis
- Division of Endocrinology and Metabolism, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Karen K Miller
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Elizabeth A Lawson
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts, USA,
- Harvard Medical School, Boston, Massachusetts, USA,
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20
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Ricci Bitti S, Franco M, Albertelli M, Gatto F, Vera L, Ferone D, Boschetti M. GH Replacement in the Elderly: Is It Worth It? Front Endocrinol (Lausanne) 2021; 12:680579. [PMID: 34211437 PMCID: PMC8239420 DOI: 10.3389/fendo.2021.680579] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 06/02/2021] [Indexed: 11/24/2022] Open
Abstract
Growth hormone (GH), once the age of linear growth is completed, continues to play a fundamental role for the human body. In adulthood, GH contributes to regulate muscle, cardiovascular and bone metabolism. The same happens in old age, although there is less data on the effect of GH in the elderly. Regardless the age of onset, a reduced quality of life (QoL), an increased cardiovascular risk and an accelerated age-related decline in physical strength have been demonstrated in the elderly with GH deficiency (EGHD). In adults with GH deficiency (AGHD), recent studies suggest a role of GH replacement therapy (GHrt) in improving lean/fat mass ratio, blood pressure, lipid profile, bone metabolism and QoL. Despite these recent studies, there is still a lack of randomized controlled trials proving these positive effects in EGHD. Moreover, the lack of a long-term positive outcome on mortality, and the cost of GHrt could often impact on treatment decision-making and lead to postpone or avoid the prescription. The aim of this mini-review is to summarize the available data on GHrt in EGHD, in order to highlight its weaknesses and strengths and to provide directions to clinicians that will help in the management of this specific set of patients.
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Affiliation(s)
- Silvia Ricci Bitti
- Endocrinology Unit, Department of Internal Medicine and Medical Specialties, School of Medical and Pharmaceutical Sciences, University of Genova, Genova, Italy
| | - Marta Franco
- Endocrinology Unit, Department of Internal Medicine and Medical Specialties, School of Medical and Pharmaceutical Sciences, University of Genova, Genova, Italy
| | - Manuela Albertelli
- Endocrinology Unit, Department of Internal Medicine and Medical Specialties, School of Medical and Pharmaceutical Sciences, University of Genova, Genova, Italy
- Endocrinology Unit, IRCCS Policlinico San Martino, Genova, Italy
| | - Federico Gatto
- Endocrinology Unit, IRCCS Policlinico San Martino, Genova, Italy
| | - Lara Vera
- Endocrinology Unit, IRCCS Policlinico San Martino, Genova, Italy
| | - Diego Ferone
- Endocrinology Unit, Department of Internal Medicine and Medical Specialties, School of Medical and Pharmaceutical Sciences, University of Genova, Genova, Italy
- Endocrinology Unit, IRCCS Policlinico San Martino, Genova, Italy
| | - Mara Boschetti
- Endocrinology Unit, Department of Internal Medicine and Medical Specialties, School of Medical and Pharmaceutical Sciences, University of Genova, Genova, Italy
- Endocrinology Unit, IRCCS Policlinico San Martino, Genova, Italy
- *Correspondence: Mara Boschetti,
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21
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Heaton AL, Kelly C, Rood J, Tam CS, Greenway FL. Mechanism for the Increase in Human Growth Hormone with Administration of a Novel Test Supplement and Results Indicating Improved Physical Fitness and Sleep Efficiency. J Med Food 2020; 24:653-659. [PMID: 33030391 DOI: 10.1089/jmf.2020.0109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
An oral test supplement increases serum human growth hormone (hGH) levels after acute administration in healthy adults. We investigated the mechanism for the increase in hGH and the effect of continued daily administration of the test supplement on measures of physical fitness and sleep efficiency. In Study 1, serum triiodothyronine (T3) was measured in samples from a prior placebo-controlled, double-blind study in which 16 healthy participants received both placebo and the test supplement in a crossover design; treatment order was randomized, and treatments were separated by a 1-week washout. In Study 2, physical fitness (VO2 max) was measured at baseline and after 2 weeks of daily administration of the test supplement (N = 12 healthy participants). Study 3 assessed daily sleep onset latency and time awake during 3 weeks of daily administration of the test supplement (N = 15 healthy participants). A fall from baseline in T3 was observed with placebo (-6.1 ± 8.5 ng/dL, P = .01). Of note, the change in T3 was smaller with the test supplement (-3.3 ± 10.7 ng/dL, P = not significant) but was not statistically different from placebo. Mean VO2 max increased by 6% from baseline after 2 weeks (P = .02). Sleep-onset latency and time awake during the night were reduced from baseline to week 3 by 22% and 65%, respectively (P = .01 and P = .02). The conservation of T3 levels suggests that the mechanism for increased hGH secretion by the test supplement is through somatostatin inhibition. Furthermore, pilot studies indicated that daily administration of the supplement improved physical fitness and sleep efficiency from baseline, effects consistent with increased endogenous hGH release. Clinical Trial Registration No. NCT02987868.
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Affiliation(s)
- Amy L Heaton
- Pennington Biomedical Research Center, LSU System, Baton Rouge, Louisiana, USA.,Sierra Research Group, LLC, Salt Lake City, Utah, USA
| | - Colleen Kelly
- Kelly Statistical Consulting, Carlsbad, California, USA
| | - Jennifer Rood
- Pennington Biomedical Research Center, LSU System, Baton Rouge, Louisiana, USA
| | - Charmaine S Tam
- Pennington Biomedical Research Center, LSU System, Baton Rouge, Louisiana, USA
| | - Frank L Greenway
- Pennington Biomedical Research Center, LSU System, Baton Rouge, Louisiana, USA
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Kim OK, Yun JM, Lee M, Park SJ, Kim D, Oh DH, Kim HS, Kim GY. A Mixture of Humulus japonicus Increases Longitudinal Bone Growth Rate in Sprague Dawley Rats. Nutrients 2020; 12:nu12092625. [PMID: 32872370 PMCID: PMC7551887 DOI: 10.3390/nu12092625] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/24/2020] [Accepted: 08/27/2020] [Indexed: 01/10/2023] Open
Abstract
The aim of this study was to investigate the effects of administration of a mixture of Humulus japonicus (MH) on longitudinal bone growth in normal Sprague Dawley (SD) rats. We measured the femur and tibia length, growth plate area, proliferation of chondrocytes, and expression of insulin-like growth factor-1 (IGF-I) and IGF binding protein-3 (IGFBP-3), and Janus kinase 2 (JAK2)/signal transducer and activator of transcription 5 (STAT5) phosphorylation after dietary administration of MH in SD rats for four weeks. The nose–tail length gain and length of femur and tibia increased significantly in the group that received MH for a period of four weeks. We performed H&E staining and Bromodeoxyuridine/5-Bromo-2′-Deoxyuridine (BrdU) staining to examine the effect of dietary administration of MH on the growth plate and the proliferation of chondrocytes and found that MH stimulated the proliferation of chondrocytes and contributed to increased growth plate height during the process of longitudinal bone growth. In addition, serum levels of IGF-1 and IGFBP-3 and expression of IGF-1 and IGFBP-3 mRNAs in the liver and bone were increased, and phosphorylation of JAK2/STAT5 in the liver was increased in the MH groups. Based on these results, we suggest that the effect of MH on longitudinal bone growth is mediated by increased JAK2/STAT5-induced IGF-1 production.
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Affiliation(s)
- Ok-Kyung Kim
- Division of Food and Nutrition, Human Ecology Research Institute, Chonnam National University, Gwangju 61186, Korea;
| | - Jeong moon Yun
- PENS Co., Ltd., Seoul 07206, Korea; (J.m.Y.); (D.K.); (H.-S.K.)
| | - Minhee Lee
- Research Institute of Clinical Nutrition, Kyung Hee University, Seoul 02447, Korea; (M.L.); (S.-J.P.); (D.H.O.)
| | - Soo-Jeung Park
- Research Institute of Clinical Nutrition, Kyung Hee University, Seoul 02447, Korea; (M.L.); (S.-J.P.); (D.H.O.)
| | - Dakyung Kim
- PENS Co., Ltd., Seoul 07206, Korea; (J.m.Y.); (D.K.); (H.-S.K.)
| | - Dong Hwan Oh
- Research Institute of Clinical Nutrition, Kyung Hee University, Seoul 02447, Korea; (M.L.); (S.-J.P.); (D.H.O.)
| | - Hong-Sik Kim
- PENS Co., Ltd., Seoul 07206, Korea; (J.m.Y.); (D.K.); (H.-S.K.)
| | - Ga-Yeon Kim
- Department of Public Health, Dankook University Graduate School, Cheonan-si, Chungnam 31116, Korea
- Correspondence: ; Tel.: +82-41-550-1493
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Isaksson S, Bogefors K, Åkesson K, Øra I, Egund L, Bobjer J, Leijonhufvud I, Giwercman A. Low bone mineral density is associated with hypogonadism and cranial irradiation in male childhood cancer survivors. Osteoporos Int 2020; 31:1261-1272. [PMID: 32008156 PMCID: PMC7280350 DOI: 10.1007/s00198-020-05285-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 01/06/2020] [Indexed: 11/17/2022]
Abstract
We investigated if bone mineral density was related to testosterone deficiency and/or previous cancer treatment in men who were childhood cancer survivors. Men with untreated testosterone deficiency or previous treatment with cranial irradiation were at increased risk of impaired bone health. Prevention of osteoporosis should be considered in their follow-up. INTRODUCTION Childhood cancer survivors (CCS) are at increased risk of hypogonadism. Reduced bone mineral density (BMD) has been reported in CCS but it is unclear whether this is due to hypogonadism or a direct effect of cancer therapy. This study investigated BMD in CCS, and association with hypogonadism, previous treatment and cancer type. METHODS Investigation of 125 CCS (median age 33.7 at inclusion; 9.6 at diagnosis) and 125 age-matched population controls. Serum testosterone and luteinizing hormone were assayed and BMD at total hip and lumbar spine L1-L4 measured. The mean difference in BMD (g/cm2; 95% CI) between CCS and controls was analysed. Odds ratios (OR; 95% CI) for low BMD were also calculated. RESULTS Overall, BMD in the CCS cohort did not significantly differ from controls. However, compared with eugonadal CCS, the CCS with untreated hypogonadism had lower BMD at the hip (mean difference - 0.139 (- 0.210; - 0.067); p < 0.001) and spine (- 0.102 (- 0.174; - 0.030); p = 0.006). They also had a higher risk of low hip BMD (OR 4.1 (1.3; 14); p = 0.018). CCS treated with cranial irradiation also had lower BMD (hip - 0.076 (- 0.133; - 0.019); p = 0.009; spine - 0.071 (- 0.124; - 0.018); p = 0.009) compared with controls. The latter associations remained statistically significant after adjustment for hypogonadism. CONCLUSIONS CCS with hypogonadism or previously treated with cranial irradiation are at increased risk of impaired bone health. Prevention of osteoporosis should be considered as an important part in future follow-up of these men.
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Affiliation(s)
- S Isaksson
- Molecular Reproductive Medicine Unit, Department of Translational Medicine, Lund University, CRC Building 91, Plan 10, Jan Waldenströms Gata 35, SE-205 02, Malmö, Sweden.
- Department of Oncology, Skane University Hospital, Malmö and Lund, Sweden.
| | - K Bogefors
- Molecular Reproductive Medicine Unit, Department of Translational Medicine, Lund University, CRC Building 91, Plan 10, Jan Waldenströms Gata 35, SE-205 02, Malmö, Sweden
- Department of Oncology, Skane University Hospital, Malmö and Lund, Sweden
| | - K Åkesson
- Department of Clinical Sciences Malmö, Clinical and Molecular Osteoporosis Unit, Lund University, Malmö, Sweden
- Department of Orthopedics, Skane University Hospital, Malmö, Sweden
| | - I Øra
- Pediatric Oncology and Hematology, Clinical Sciences, Lund University, Lund, Sweden
| | - L Egund
- Department of Clinical Sciences Malmö, Clinical and Molecular Osteoporosis Unit, Lund University, Malmö, Sweden
- Department of Orthopedics, Skane University Hospital, Malmö, Sweden
| | - J Bobjer
- Molecular Reproductive Medicine Unit, Department of Translational Medicine, Lund University, CRC Building 91, Plan 10, Jan Waldenströms Gata 35, SE-205 02, Malmö, Sweden
- Department of Urology, Skane University Hospital, Malmö, Sweden
| | - I Leijonhufvud
- Molecular Reproductive Medicine Unit, Department of Translational Medicine, Lund University, CRC Building 91, Plan 10, Jan Waldenströms Gata 35, SE-205 02, Malmö, Sweden
- Reproductive Medicine Centre, Skane University Hospital, Malmö, Sweden
| | - A Giwercman
- Molecular Reproductive Medicine Unit, Department of Translational Medicine, Lund University, CRC Building 91, Plan 10, Jan Waldenströms Gata 35, SE-205 02, Malmö, Sweden
- Reproductive Medicine Centre, Skane University Hospital, Malmö, Sweden
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He X, Barkan AL. Growth hormone therapy in adults with growth hormone deficiency: a critical assessment of the literature. Pituitary 2020; 23:294-306. [PMID: 32060708 DOI: 10.1007/s11102-020-01031-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE Growth hormone (GH) therapy has been studied as treatment for clinical manifestations of adult-onset growth hormone deficiency (AO-GHD), including cardiovascular risk, bone health, and quality of life. Patients with AO-GHD typically also have significant history of pituitary pathology and hypopituitarism, which raises the question of what proportion of their clinical presentation can be attributed to GHD alone. Currently, much of the existing data for GH therapy in AO-GHD come from uncontrolled retrospective studies and observational protocols. These considerations require careful reassessment of the role of GH as a therapeutic agent in adult patients with hypopituitarism. METHODS We contrast results from placebo-controlled trials with those from uncontrolled and retrospective studies for GH replacement in patients with hypopituitarism. We also examine the evidence for the manifestations of AO-GHD being attributed to GHD alone, as well as the data on adults with congenital, life-long untreated isolated GHD. RESULTS The evidence for increased morbidity and mortality in hypopituitary patients with GHD, and for the benefits of GH therapy, are conflicting. There remains the possibility that the described clinical manifestations of AO-GHD may not be due to GHD alone, but may also be related to underlying pituitary pathology, treatment history and suboptimal hormone replacement. CONCLUSIONS In the setting of inconsistent data on the benefits of GH therapy, treatment of AO-GHD remains an individualized decision. There is a need for more randomized, placebo-controlled studies to evaluate the long-term outcomes of GH therapy in adults with hypopituitarism.
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Affiliation(s)
- Xin He
- Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan, Domino's Farms, Lobby G, Suite 1500, 24 Frank Lloyd Wright Drive, Ann Arbor, MI, 48106, USA
| | - Ariel L Barkan
- Division of Metabolism, Endocrinology & Diabetes, Department of Internal Medicine, University of Michigan, Domino's Farms, Lobby G, Suite 1500, 24 Frank Lloyd Wright Drive, Ann Arbor, MI, 48106, USA.
- Department of Neurosurgery, University of Michigan, 1500 E Medical Center Drive, Ann Arbor, MI, 48109, USA.
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Kužma M, Killinger Z, Jackuliak P, Vaňuga P, Hans D, Binkley N, Payer J. Pathophysiology of growth hormone secretion disorders and their impact on bone microstructure as measured by trabecular bone score. Physiol Res 2020; 68:S121-S129. [PMID: 31842575 DOI: 10.33549/physiolres.934303] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
This article is focused on endocrine-mediated osteoporosis caused by growth hormone (GH) disorders; adult GH deficiency and acromegaly. GH and insulin like growth factor-1 (IGF-1) stimulate linear bone growth through complex hormonal interactions and activates epiphyseal prechondrocytes. GH, via receptor activator of nuclear factor-kappaB (RANK), its ligand (RANK-L), and the osteoprotegerin system, stimulates production of osteoprotegerin and its accumulation in bone matrix. Malfunction of this mechanism, could lead to specific bone impairment. However, the primary problem of bone disease in GH secretion disorders is the primary prevention of osteoporotic fractures, so it is important to determine bone quality that better reflects the patient's actual predisposition to fracture. A method estimating bone quality from lumbar spine dual X-ray absorptiometry (DXA) scans is trabecular bone score (TBS). TBS in addition to bone mineral density (BMD) is a promising predictor of the osteoporotic fracture risk in women with postmenopausal osteopenia. In acromegaly TBS better defines risk of fracture because BMD is normal or even increased. TBS helps to monitor the effect of growth hormone therapy. Despite these findings, TBS should not be used alone, but a comprehensive consideration of all fracture risk factors, BMD and bone turnover markers is necessary.
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Affiliation(s)
- M Kužma
- 5th Department of Internal Medicine, Faculty of Medicine, Comenius University Bratislava, University Hospital Bratislava, Bratislava, Slovak Republic
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Wright T, Urban R, Durham W, Dillon EL, Randolph KM, Danesi C, Gilkison C, Karmonik C, Zgaljardic DJ, Masel B, Bishop J, Pyles R, Seidler R, Hierholzer AH, Sheffield-Moore M. Growth Hormone Alters Brain Morphometry, Connectivity, and Behavior in Subjects with Fatigue after Mild Traumatic Brain Injury. J Neurotrauma 2020; 37:1052-1066. [PMID: 31797721 PMCID: PMC7185353 DOI: 10.1089/neu.2019.6690] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Pituitary dysfunction with reduced growth hormone (GH) secretion is common in patients following traumatic brain injury (TBI), and these patients often develop chronic symptoms including fatigue and altered cognition. We examined 18 subjects with a history of mild TBI, fatigue, and insufficient GH secretion. Subjects received GH replacement in a year-long, double-blind, placebo-controlled, crossover study, and were assessed for changes in physical performance, body composition, resting energy expenditure, fatigue, sleep, mood, and neuropsychological status. Additionally, magnetic resonance imaging (MRI) was used to assess changes in brain structure and resting state functional connectivity. GH replacement resulted in decreased fatigue, sleep disturbance, and anxiety, as well as increased resting energy expenditure, improved body composition, and altered perception of submaximal effort when performing exercise testing. Associated brain changes included increased frontal cortical thickness and gray matter volume and resting state connectivity changes in regions associated with somatosensory networks. GH replacement altered brain morphology and connectivity and reduced fatigue and related symptoms in mild TBI patients. Additional studies are needed to understand the mechanisms causing TBI-related fatigue and symptom relief with GH replacement.
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Affiliation(s)
- Traver Wright
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
- Department of Health and Kinesiology, Texas A&M University, College Station, Texas
| | - Randall Urban
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
| | - William Durham
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
| | - E. Lichar Dillon
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Kathleen M. Randolph
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
- Department of Health and Kinesiology, Texas A&M University, College Station, Texas
| | - Christopher Danesi
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Charles Gilkison
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Christof Karmonik
- Radiology Department, Houston Methodist Research Institute, Houston, Texas
| | | | - Brent Masel
- Center for Neuro Skills, Bakersfield, California
| | - James Bishop
- Department of Radiology, Stanford University, Stanford, California
| | - Richard Pyles
- Department of Pediatrics, University of Texas Medical Branch, Galveston, Texas
| | - Rachael Seidler
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida
| | - Ashton H. Hierholzer
- Department of School of Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Melinda Sheffield-Moore
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
- Department of Health and Kinesiology, Texas A&M University, College Station, Texas
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Yuen KCJ, Biller BMK, Radovick S, Carmichael JD, Jasim S, Pantalone KM, Hoffman AR. AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY GUIDELINES FOR MANAGEMENT OF GROWTH HORMONE DEFICIENCY IN ADULTS AND PATIENTS TRANSITIONING FROM PEDIATRIC TO ADULT CARE. Endocr Pract 2019; 25:1191-1232. [PMID: 31760824 DOI: 10.4158/gl-2019-0405] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Objective: The development of these guidelines is sponsored by the American Association of Clinical Endocrinologists (AACE) Board of Directors and American College of Endocrinology (ACE) Board of Trustees and adheres with published AACE protocols for the standardized production of clinical practice guidelines (CPG). Methods: Recommendations are based on diligent reviews of clinical evidence with transparent incorporation of subjective factors, according to established AACE/ACE guidelines for guidelines protocols. Results: The Executive Summary of this 2019 updated guideline contains 58 numbered recommendations: 12 are Grade A (21%), 19 are Grade B (33%), 21 are Grade C (36%), and 6 are Grade D (10%). These detailed, evidence-based recommendations allow for nuance-based clinical decision-making that addresses multiple aspects of real-world care of patients. The evidence base presented in the subsequent Appendix provides relevant supporting information for the Executive Summary recommendations. This update contains 357 citations of which 51 (14%) are evidence level (EL) 1 (strong), 168 (47%) are EL 2 (intermediate), 61 (17%) are EL 3 (weak), and 77 (22%) are EL 4 (no clinical evidence). Conclusion: This CPG is a practical tool that practicing endocrinologists and regulatory bodies can refer to regarding the identification, diagnosis, and treatment of adults and patients transitioning from pediatric to adult-care services with growth hormone deficiency (GHD). It provides guidelines on assessment, screening, diagnostic testing, and treatment recommendations for a range of individuals with various causes of adult GHD. The recommendations emphasize the importance of considering testing patients with a reasonable level of clinical suspicion of GHD using appropriate growth hormone (GH) cut-points for various GH-stimulation tests to accurately diagnose adult GHD, and to exercise caution interpreting serum GH and insulin-like growth factor-1 (IGF-1) levels, as various GH and IGF-1 assays are used to support treatment decisions. The intention to treat often requires sound clinical judgment and careful assessment of the benefits and risks specific to each individual patient. Unapproved uses of GH, long-term safety, and the current status of long-acting GH preparations are also discussed in this document. LAY ABSTRACT This updated guideline provides evidence-based recommendations regarding the identification, screening, assessment, diagnosis, and treatment for a range of individuals with various causes of adult growth-hormone deficiency (GHD) and patients with childhood-onset GHD transitioning to adult care. The update summarizes the most current knowledge about the accuracy of available GH-stimulation tests, safety of recombinant human GH (rhGH) replacement, unapproved uses of rhGH related to sports and aging, and new developments such as long-acting GH preparations that use a variety of technologies to prolong GH action. Recommendations offer a framework for physicians to manage patients with GHD effectively during transition to adult care and adulthood. Establishing a correct diagnosis is essential before consideration of replacement therapy with rhGH. Since the diagnosis of GHD in adults can be challenging, GH-stimulation tests are recommended based on individual patient circumstances and use of appropriate GH cut-points. Available GH-stimulation tests are discussed regarding variability, accuracy, reproducibility, safety, and contraindications, among other factors. The regimen for starting and maintaining rhGH treatment now uses individualized dose adjustments, which has improved effectiveness and reduced reported side effects, dependent on age, gender, body mass index, and various other individual characteristics. With careful dosing of rhGH replacement, many features of adult GHD are reversible and side effects of therapy can be minimized. Scientific studies have consistently shown rhGH therapy to be beneficial for adults with GHD, including improvements in body composition and quality of life, and have demonstrated the safety of short- and long-term rhGH replacement. Abbreviations: AACE = American Association of Clinical Endocrinologists; ACE = American College of Endocrinology; AHSG = alpha-2-HS-glycoprotein; AO-GHD = adult-onset growth hormone deficiency; ARG = arginine; BEL = best evidence level; BMD = bone mineral density; BMI = body mass index; CI = confidence interval; CO-GHD = childhood-onset growth hormone deficiency; CPG = clinical practice guideline; CRP = C-reactive protein; DM = diabetes mellitus; DXA = dual-energy X-ray absorptiometry; EL = evidence level; FDA = Food and Drug Administration; FD-GST = fixed-dose glucagon stimulation test; GeNeSIS = Genetics and Neuroendocrinology of Short Stature International Study; GH = growth hormone; GHD = growth hormone deficiency; GHRH = growth hormone-releasing hormone; GST = glucagon stimulation test; HDL = high-density lipoprotein; HypoCCS = Hypopituitary Control and Complications Study; IGF-1 = insulin-like growth factor-1; IGFBP = insulin-like growth factor-binding protein; IGHD = isolated growth hormone deficiency; ITT = insulin tolerance test; KIMS = Kabi International Metabolic Surveillance; LAGH = long-acting growth hormone; LDL = low-density lipoprotein; LIF = leukemia inhibitory factor; MPHD = multiple pituitary hormone deficiencies; MRI = magnetic resonance imaging; P-III-NP = procollagen type-III amino-terminal pro-peptide; PHD = pituitary hormone deficiencies; QoL = quality of life; rhGH = recombinant human growth hormone; ROC = receiver operating characteristic; RR = relative risk; SAH = subarachnoid hemorrhage; SDS = standard deviation score; SIR = standardized incidence ratio; SN = secondary neoplasms; T3 = triiodothyronine; TBI = traumatic brain injury; VDBP = vitamin D-binding protein; WADA = World Anti-Doping Agency; WB-GST = weight-based glucagon stimulation test.
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Lutsenko AS, Nagaeva EV, Belaya ZE, Chukhacheva OS, Zenkova TS, Melnichenko GA. [Current aspects of diagnosis and treatment of adult GH-deficiency]. ACTA ACUST UNITED AC 2019; 65:373-388. [PMID: 32202742 DOI: 10.14341/probl10322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 11/06/2022]
Abstract
Adult growth hormone (GH) deficiency (AGHD) is a condition characterized by alterations in body composition, lipid and carbohydrate metabolism, bone mineral density and poor quality of life; however, clinical presentations of AGHD are mostly non-specific. Untreated AGHD is associated with increased cardiovascular morbidity and mortality. Stimulation tests are used for the diagnosis: insulin tolerance test, glucagon stimulation test, growth-hormone releasing hormone and arginine stimulation test. Moreover, in 2017 FDA approved the use of macimorelin (oral GH secretagogue) for the diagnosis of AGHD. In childhood GH-deficiency, apolipoprotein A-IV, CFHR4 (complement factor H-related protein 4) and PBP (platelet basic protein) were identified as potential biomarkers of the disease, however, this was not investigated in AGHD. GH treatment starts from the minimal dose, which allows minimizing the adverse effects. According to published meta-analyses, AGHD treatment generally does not lead to increased risk of malignancy and recurrence of sellar neoplasms in adult patients. Published data on GH receptor polymorphism associations with treatment efficacy remains controversial. Development of long-acting GH formulations is a currect perspective for the increase of treatment compliance.
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Yuen KCJ, Llahana S, Miller BS. Adult growth hormone deficiency: clinical advances and approaches to improve adherence. Expert Rev Endocrinol Metab 2019; 14:419-436. [PMID: 31721610 DOI: 10.1080/17446651.2019.1689119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 11/01/2019] [Indexed: 12/17/2022]
Abstract
Introduction: There have been significant clinical advances in the understanding of the diagnosis and benefits of long-term recombinant human growth hormone (rhGH) replacement in adults with GH deficiency (GHD) since its approval in 1996 by the United States Food and Drug Administration.Areas covered: We searched PubMed, Medline, CINAHL, EMBASE and PsychInfo databases between January 2000 and June 2019 for published studies evaluating adults with GHD. We reviewed the data of the oral macimorelin test compared to the GHRH plus arginine and the insulin tolerance tests that led to its approval by the United States FDA and European Medicines Agency for adult diagnostic testing. We summarize the clinical advances of long-term benefits of rhGH therapy and the potential effects of GH receptor polymorphisms on individual treatment responsiveness. We identify that non-adherence and discontinuation rates are high and recommend strategies to support patients to improve adherence. We also provide an overview of several long-acting GH (LAGH) preparations currently under development and their potential role in improving treatment adherence.Expert opinion: This article summarizes recent clinical advances in rhGH replacement therapy, the biological and molecular aspects that may influence rhGH action, and offers practical strategies to enhance adherence in adults with GHD.
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Affiliation(s)
- Kevin C J Yuen
- Barrow Pituitary Center, Barrow Neurological Institute, University of Arizona College of Medicine and Creighton School of Medicine, Phoenix, AZ, USA
| | - Sofia Llahana
- Division of Nursing, School of Health Sciences, City University of London, London, UK
| | - Bradley S Miller
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Minnesota, Minneapolis, MN, USA
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Gebauer J, Higham C, Langer T, Denzer C, Brabant G. Long-Term Endocrine and Metabolic Consequences of Cancer Treatment: A Systematic Review. Endocr Rev 2019; 40:711-767. [PMID: 30476004 DOI: 10.1210/er.2018-00092] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/21/2018] [Indexed: 02/08/2023]
Abstract
The number of patients surviving ≥5 years after initial cancer diagnosis has significantly increased during the last decades due to considerable improvements in the treatment of many cancer entities. A negative consequence of this is that the emergence of long-term sequelae and endocrine disorders account for a high proportion of these. These late effects can occur decades after cancer treatment and affect up to 50% of childhood cancer survivors. Multiple predisposing factors for endocrine late effects have been identified, including radiation, sex, and age at the time of diagnosis. A systematic literature search has been conducted using the PubMed database to offer a detailed overview of the spectrum of late endocrine disorders following oncological treatment. Most data are based on late effects of treatment in former childhood cancer patients for whom specific guidelines and recommendations already exist, whereas current knowledge concerning late effects in adult-onset cancer survivors is much less clear. Endocrine sequelae of cancer therapy include functional alterations in hypothalamic-pituitary, thyroid, parathyroid, adrenal, and gonadal regulation as well as bone and metabolic complications. Surgery, radiotherapy, chemotherapy, and immunotherapy all contribute to these sequelae. Following irradiation, endocrine organs such as the thyroid are also at risk for subsequent malignancies. Although diagnosis and management of functional and neoplastic long-term consequences of cancer therapy are comparable to other causes of endocrine disorders, cancer survivors need individually structured follow-up care in specialized surveillance centers to improve care for this rapidly growing group of patients.
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Affiliation(s)
- Judith Gebauer
- Experimental and Clinical Endocrinology, University Hospital of Schleswig-Holstein, Campus Luebeck, Luebeck, Germany
| | - Claire Higham
- Department of Endocrinology, Christie Hospital NHS Foundation Trust, Manchester, United Kingdom.,Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Thorsten Langer
- Division of Pediatric Hematology and Oncology, University Hospital of Schleswig-Holstein, Campus Luebeck, Luebeck, Germany
| | - Christian Denzer
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Endocrinology and Diabetes, Ulm University Medical Center, Ulm, Germany
| | - Georg Brabant
- Experimental and Clinical Endocrinology, University Hospital of Schleswig-Holstein, Campus Luebeck, Luebeck, Germany.,Department of Endocrinology, Christie Hospital NHS Foundation Trust, Manchester, United Kingdom
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Loftus J, Camacho-Hubner C, Hey-Hadavi J, Goodrich K. Targeted literature review of the humanistic and economic burden of adult growth hormone deficiency. Curr Med Res Opin 2019; 35:963-973. [PMID: 30411985 DOI: 10.1080/03007995.2018.1546682] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Quality of life (QoL) and health economic data are becoming increasingly important factors in healthcare decision making. While there is a wealth of information establishing the benefit of growth hormone (GH) replacement therapy in adults with growth hormone deficiency (aGHD), recent reviews on the QoL and health economic impact of aGHD and the effect of treatment on these factors is limited. OBJECTIVE The aim of this article is to summarize the impact of early and sustained treatment on the QoL and economic burden of aGHD by conducting a targeted literature review. METHODS Standard electronic databases, including PubMed and the Cochrane collaboration website, were searched for publications between January 2006 and July 2016 for evidence of the humanistic and economic burden of aGHD. Search terms included growth hormone deficiency, health-related quality of life, HRQoL, patient-reported outcomes, outcome assessment, well-being and adherence. RESULTS The literature search identified 732 initial hits and a final 14 publications were included. The analysis showed that the economic burden of aGHD is largely driven by the productivity losses associated with the disease. This is because most patients with aGHD are of working age and the QoL domains (memory & concentration and energy & vitality) most commonly affected by aGHD severely impair a person's ability to work and may limit their contribution to society. CONCLUSION Untreated aGHD can seriously affect patients' functioning. Early and continued treatment with GH replacement therapy could potentially improve the QoL and reduce the economic burden associated with aGHD. This review has limitations: only English language articles published since January 2006 were included and many of the studies were conducted in the Nordic countries; it is unclear how representative these studies are of the population as a whole. This was a literature review and not a systematic review, as it was thought to be unlikely that, in this rare disease, any additional publications would have been identified. Overall, this review reveals a paucity of data in this underserved population and points to research gaps which could be addressed with new studies.
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Yang H, Yan K, Yuping X, Zhang Q, Wang L, Gong F, Zhu H, Xia W, Pan H. Bone microarchitecture and volumetric bone density impairment in young male adults with childhood-onset growth hormone deficiency. Eur J Endocrinol 2019; 180:145-153. [PMID: 30481154 PMCID: PMC6347261 DOI: 10.1530/eje-18-0711] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 11/26/2018] [Indexed: 12/21/2022]
Abstract
Context Adult growth hormone deficiency (AGHD) is characterized by low bone density and increased risk of fracture. Bone microarchitecture is insufficiently evaluated in patients with childhood-onset AGHD (CO AGHD). Objective To assess volumetric bone density (vBMD) and bone microarchitecture in CO AGHD in early adulthood after cessation of recombinant growth hormone (rhGH) treatment. Design and subjects Case-control study in a major academic medical center in Beijing, including 20 young male adults with CO AGHD and 30 age- and weight-matched non-athletic healthy men. High-resolution peripheral quantitative computerized tomography (HR-pQCT) of distal radius and tibia was performed. Outcomes The main outcomes were vBMD and morphometry parameters from HR-pQCT. Results Compared with healthy controls, CO AGHD group had significantly decreased insulin-like growth factor 1 (IGF-1) level and IGF-1 SDS (P < 0.001). β-CTX and alkaline phosphatase levels in CO AGHD group were significantly increased (P < 0.001). CO AGHD group had significantly decreased total vBMD, cortical vBMD, trabecular vBMD, cortical area, cortical thickness as well as trabecular thickness and trabecular bone volume fraction of both tibia and radius (P < 0.001). CO AGHD patients had an 8.4 kg decrease in grip strength and a significant decrease in creatinine levels (P = 0.001). At both tibia and radius, by finite element analysis, bone stiffness and failure load of the CO AGHD patients were significantly decreased (P < 0.001). After adjusting for age, BMI and serum levels of testosterone and free thyroxin, serum IGF-1 level was a positive predictor for total vBMD, cortical vBMD, cortical area, trabecular vBMD, bone stiffness and failure load of both tibia and distal radius in all subjects. Conclusions Young adult male patients with childhood-onset adult growth hormone deficiency who are no longer receiving growth hormone replacement have prominently impaired volumetric bone density and bone microarchitecture and lower estimated bone strength.
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Affiliation(s)
- Hongbo Yang
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, The Translational Medicine Center of PUMCH
| | - Kemin Yan
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, The Translational Medicine Center of PUMCH
| | - Xu Yuping
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, The Translational Medicine Center of PUMCH
| | - Qi Zhang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Linjie Wang
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, The Translational Medicine Center of PUMCH
| | - Fengying Gong
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, The Translational Medicine Center of PUMCH
| | - Huijuan Zhu
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, The Translational Medicine Center of PUMCH
- Correspondence should be addressed to H Zhu or H Pan or W XiaEmail or or
| | - Weibo Xia
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, The Translational Medicine Center of PUMCH
- Correspondence should be addressed to H Zhu or H Pan or W XiaEmail or or
| | - Hui Pan
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, The Translational Medicine Center of PUMCH
- Correspondence should be addressed to H Zhu or H Pan or W XiaEmail or or
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Agarwal P, Gomez R, Bhatia E, Yadav S. Decreased bone mineral density in women with Sheehan's syndrome and improvement following oestrogen replacement and nutritional supplementation. J Bone Miner Metab 2019; 37:171-178. [PMID: 29464357 DOI: 10.1007/s00774-018-0911-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 01/23/2018] [Indexed: 11/29/2022]
Abstract
Sheehan's syndrome (SS) is an important cause of pan-hypopituitarism in women. There is scanty information on bone mineral density (BMD) in this condition. We determined BMD and the changes in BMD after oestrogen (E2) replacement and nutritional supplementation in women with SS. In a cross-sectional study, BMD was measured by DEXA in 83 patients [age (mean ± SD) 42 ± 9.2 years] and compared with an equal number of matched controls. In a sub-set of 19 patients, we conducted an open-label, prospective study to determine changes in BMD after 1 year of replacement of E2, and calcium and vitamin D3 supplementation. All patients had low serum IGF-1 and E2, while 98% had ≥ 3 pituitary hormone deficiencies. Compared with Indian reference standards, 47% had decreased bone mass (Z-score ≤ - 2.0). BMD Z-scores were decreased at all sites, being most marked in the lumbar spine and femoral neck. At the lumbar spine, BMD was lowest among the age group 21-30 years. Women with SS also had significantly lower BMD Z-scores at all three sites on comparison with ethnic controls. On multivariate analysis, BMD Z-score was associated with weight, daily calcium intake and age (lumbar spine). In the prospective study, 1 year of therapy improved BMD Z-score at lumbar spine (- 1.4 ± 1.2 vs. - 1.1 ± 1.1, p = 0.02), but not at hip or femoral neck. In conclusion, patients with SS had significantly lower BMD compared to controls at all three sites. Replacement of E2 and supplementation with calcium/vitamin D3 lead to significant improvement in lumbar spine BMD.
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Affiliation(s)
- Purnima Agarwal
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, India
| | - Ramesh Gomez
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, India
| | - Eesh Bhatia
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, India
| | - Subhash Yadav
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, India.
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Mazziotti G, Frara S, Giustina A. Pituitary Diseases and Bone. Endocr Rev 2018; 39:440-488. [PMID: 29684108 DOI: 10.1210/er.2018-00005] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 04/16/2018] [Indexed: 12/12/2022]
Abstract
Neuroendocrinology of bone is a new area of research based on the evidence that pituitary hormones may directly modulate bone remodeling and metabolism. Skeletal fragility associated with high risk of fractures is a common complication of several pituitary diseases such as hypopituitarism, Cushing disease, acromegaly, and hyperprolactinemia. As in other forms of secondary osteoporosis, pituitary diseases generally affect bone quality more than bone quantity, and fractures may occur even in the presence of normal or low-normal bone mineral density as measured by dual-energy X-ray absorptiometry, making difficult the prediction of fractures in these clinical settings. Treatment of pituitary hormone excess and deficiency generally improves skeletal health, although some patients remain at high risk of fractures, and treatment with bone-active drugs may become mandatory. The aim of this review is to discuss the physiological, pathophysiological, and clinical insights of bone involvement in pituitary diseases.
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Affiliation(s)
| | - Stefano Frara
- Institute of Endocrinology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Giustina
- Institute of Endocrinology, Università Vita-Salute San Raffaele, Milan, Italy
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Rodrigues-Neto AJ, Biazoni-Albaricci C, Ribeiro A, Lima S, Figueras A. Towards preventive pharmacovigilance through medicine misuse identification: an example with recombinant human growth hormone for aesthetic purposes. Eur J Clin Pharmacol 2018; 74:1471-1474. [DOI: 10.1007/s00228-018-2510-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 06/22/2018] [Indexed: 10/28/2022]
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Giagulli VA, Castellana M, Perrone R, Guastamacchia E, Iacoviello M, Triggiani V. GH Supplementation Effects on Cardiovascular Risk in GH Deficient Adult Patients: A Systematic Review and Meta-analysis. Endocr Metab Immune Disord Drug Targets 2018; 17:285-296. [PMID: 28925898 PMCID: PMC5925873 DOI: 10.2174/1871530317666170919121729] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 08/30/2017] [Accepted: 09/07/2017] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND OBJECTIVE The current meta-analysis aims at evaluating whether the existing clinical evidence may ascertain the effects of growth hormone (GH) replacement therapy on cardiovascular risk, both in isolated GH deficiency (GHD) and in compensated panhypopituitarism including GH deficit. METHODS Original articles published from 1991 to 2015 were searched on Medline (Pubmed). Among an overall number of 181 potentially suitable studies, 24 fulfilled the selection criteria and were included in the analysis. Data aggregation was carried out through the calculation of the absolute risk reduction. The meta-analysis was then conducted by means of a fixed-effects model, according to the heterogeneity test (Chi-square statistic). RESULTS Fat-free mass (FFM) increase and fat mass (FM) reduction were found, together with a C-LDL reduction, a wide variation in glycaemia and a neutral effect on glycated haemoglobin (HbA1c) and blood pressure. These effects were valid both for isolated GHD patients and for those with compensated panhypopituitarism. The global outcome D showed a nonsignificant reduction of the overall cardiovascular risk (0.53; 95% C.I. -1.23, 2.85). CONCLUSION Our meta-analysis shows no signnificatly positive trend in cardiovascular risk after both short and long-term GH supplementation therapy in adult GHD patients. However, a reduction of LDL cholesterol levels has been found. No differences were found between isolated GHD participants and those affected by panhypopituitarism well compensated since at least 3 months.
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Affiliation(s)
- Vito A Giagulli
- Outpatient Clinic for Endocrinology and Metabolic Diseases, Conversano Hospital, ASL Bari Via De Amicis, 70014 Conversano, Italy.,Interdisciplinary Department of Medicine-Section of Internal Medicine, Geriatrics, Endocrinology and Rare Diseases, University of Bari "A. Moro", Bari, Italy
| | - Marco Castellana
- Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Piazza Giulio Cesare 11, 70124, Bari, Italy
| | | | - Edoardo Guastamacchia
- Interdisciplinary Department of Medicine-Section of Internal Medicine, Geriatrics, Endocrinology and Rare Diseases, University of Bari "A. Moro", Bari, Italy
| | - Massimo Iacoviello
- Cardiology Unit, Cardiothoracic Department, University of Bari, School of Medicine, Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Vincenzo Triggiani
- Interdisciplinary Department of Medicine-Section of Internal Medicine, Geriatrics, Endocrinology and Rare Diseases, University of Bari "A. Moro", Bari, Italy
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Jørgensen JOL, Juul A. THERAPY OF ENDOCRINE DISEASE: Growth hormone replacement therapy in adults: 30 years of personal clinical experience. Eur J Endocrinol 2018; 179:R47-R56. [PMID: 29716978 DOI: 10.1530/eje-18-0306] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 05/01/2018] [Indexed: 11/08/2022]
Abstract
The acute metabolic actions of purified human growth hormone (GH) were first documented in adult hypopituitary patients more than 50 years ago, and placebo-controlled long-term GH trials in GH-deficient adults (GHDA) surfaced in 1989 with the availability of biosynthetic human GH. Untreated GHDA is associated with excess morbidity and mortality from cardiovascular disease and the phenotype includes fatigue, reduced aerobic exercise capacity, abdominal obesity, reduced lean body mass, osteopenia and elevated levels of circulating cardiovascular biomarkers. Several of these features reverse and normalize with GH replacement. It remains controversial whether quality of life, assessed by questionnaires, improves. The known side effects are fluid retention and insulin resistance, which are reversible and dose dependent. The dose requirement declines markedly with age and is higher in women. Continuation of GH replacement into adulthood in patients with childhood-onset disease is indicated, if the diagnosis is reconfirmed. GH treatment of frail elderly subjects without documented pituitary disease remains unwarranted. Observational data show that mortality in GH-replaced patients is reduced compared to untreated patients. Even though this reduced mortality could be due to selection bias, GH replacement in GHDA has proven beneficial and safe.
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Affiliation(s)
- Jens O L Jørgensen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Anders Juul
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Abstract
CONTEXT Recombinant human growth hormone (rHGH) has become a target of abuse in the sporting world. Conversely, sports medicine clinicians may encounter athletes using rHGH to achieve normalcy in the context of growth hormone (GH) deficiency. EVIDENCE ACQUISITION Medline and PubMed databases were queried using the following keywords: GH, GH physiology, GH deficiency, acromegaly, GH athlete, GH sports, GH athletic performance, and GH deficiency concussion. Articles focusing on GH physiology, deficiency, excess, and its effects in both deficient and healthy patients were included. STUDY DESIGN Clinical review. LEVEL OF EVIDENCE Level 3. RESULTS GH is a naturally occurring hormone with important roles in human physiology. Patients with GH deficiency (GHD) present variably, and GHD has numerous etiologies. rHGH treatment has substantial therapeutic benefits for patients with GHD. The benefits of rHGH treatment in otherwise-healthy adults are uncertain. GH excess may cause health problems such as acromegaly. Professional, collegiate, and international sports leagues and associations have banned rHGH use to maintain athlete health, safety, and fair play. Athletes misusing GH may face prolonged suspensions from competition. Implementing GH abuse testing is challenging, but new methods, such as the biomarker testing procedure, are being finalized. CONCLUSION rHGH is not only an important therapeutic agent for GH-deficient patients but also a target of abuse in competitive athletics. Its benefits in a healthy, adult population are uncertain. A safe exercise and competition plan, developed with a physician knowledgeable of GH use, physiology, and abuse potential, should be of benefit to a longitudinal clinician-patient relationship.
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Affiliation(s)
- David M Siebert
- Department of Family Medicine, Sports Medicine Section, University of Washington, Seattle, Washington
| | - Ashwin L Rao
- Department of Family Medicine, Sports Medicine Section, University of Washington, Seattle, Washington
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Ramos-Leví AM, Marazuela M. Treatment of adult growth hormone deficiency with human recombinant growth hormone: an update on current evidence and critical review of advantages and pitfalls. Endocrine 2018; 60:203-218. [PMID: 29417370 DOI: 10.1007/s12020-017-1492-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 12/04/2017] [Indexed: 01/03/2023]
Abstract
Adult-onset growth-hormone (GH) deficiency (GHD) is a rare disorder, which most commonly results from pituitary or peripituitary tumors and their treatment, and is characterized by alterations in body composition, carbohydrate and lipid metabolism, bone mineral density, cardiovascular risk profile and quality of life, all of which may contribute to an increased morbidity and mortality. Since recombinant human GH (rhGH) became available in 1985, several studies have provided evidence of its beneficial effects, despite the potential risk of developing adverse effects, and much clinical experience has been accumulated. However, in adults, the precise therapeutic role of GH replacement therapy and the individual response to it remains highly variable and is still a matter of debate. In this article, we present a critical review of the available evidence on rhGH replacement therapy in GHD adults, emphasizing the pitfalls clinicians encounter in the diagnosis of GHD and monitoring of rhGH replacement therapy. We will cover all the relevant aspects regarding the potential usefulness of GH treatment, including the hot topic of mortality.
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Affiliation(s)
- Ana M Ramos-Leví
- Department of Endocrinology, Hospital Universitario La Princesa, Instituto de Investigación Princesa, Universidad Autónoma, Madrid, Spain
| | - Mónica Marazuela
- Department of Endocrinology, Hospital Universitario La Princesa, Instituto de Investigación Princesa, Universidad Autónoma, Madrid, Spain.
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Lepelaars LRA, Renda F, Pani L, Pimpinella G, Leufkens HGM, Trifirò G, Tafuri G, Mantel‐Teeuwisse AK, Trotta F. Comparing safety information of biosimilars with their originators: a cross-sectional analysis of European risk management plans. Br J Clin Pharmacol 2018; 84:738-763. [PMID: 29164665 PMCID: PMC5867080 DOI: 10.1111/bcp.13454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 09/24/2017] [Accepted: 10/07/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND AND AIMS Biosimilars have been available in the European Union (EU) since 2006. However, their uptake in routine care is heterogeneous across countries. The aim of the present study was to compare the safety information of biosimilars and their originators based on the information in the European risk management plan (RMP). METHODS A cross-sectional analysis on publicly available regulatory documents (RMPs and Summaries of Product Characteristics) of biosimilars and corresponding originators up to 1 November 2015 was performed. The safety concerns were extracted and merged into general safety concerns, and clinical relevance was assessed. The frequency of safety concerns and the representation of these safety concerns per general safety concern were assessed by either comparing RMPs of biosimilars and originators (if available for both) or comparing RMPs with the Summary of Product Characteristics of the originator. RESULTS Nineteen biosimilars and six originators were included. Overall, 55 general safety concerns (12 low, 21 medium and 22 highly clinically relevant) were identified. For all active substances, except for infliximab, no or only one difference was found in the listed general safety concerns. Comparison of regulatory documents for infliximab identified three medium clinically relevant general safety concerns more for infliximab biosimilars and two general safety concerns more for its originator. CONCLUSION Based on publicly available information filed for regulatory purposes, no substantial differences were observed in the reporting of safety information for biosimilars and related originators. A direct comparison between biosimilars and related originators through formal postmarketing studies is needed to evaluate specific safety issues emerging during the products' life cycle.
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Affiliation(s)
- Leroy R. A. Lepelaars
- WHO Collaborating Centre for Pharmaceutical Policy and Regulation, Utrecht Institute for Pharmaceutical Sciences (UIPS)Utrecht UniversityUtrechtthe Netherlands
| | | | - Luca Pani
- Italian Medicines Agency (AIFA)RomeItaly
| | | | - Hubert G. M. Leufkens
- WHO Collaborating Centre for Pharmaceutical Policy and Regulation, Utrecht Institute for Pharmaceutical Sciences (UIPS)Utrecht UniversityUtrechtthe Netherlands
- Medicines Evaluation Board (CBG‐MEB)Utrechtthe Netherlands
| | - Gianluca Trifirò
- Department of Biomedical and Dental Sciences and Morphofunctional ImagingUniversity of MessinaMessinaItaly
| | | | - Aukje K. Mantel‐Teeuwisse
- WHO Collaborating Centre for Pharmaceutical Policy and Regulation, Utrecht Institute for Pharmaceutical Sciences (UIPS)Utrecht UniversityUtrechtthe Netherlands
| | - Francesco Trotta
- Italian Medicines Agency (AIFA)RomeItaly
- Department of EpidemiologyLazio Regional Health ServiceRomeItaly
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41
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Treatment with Growth Hormone for Adults with Growth Hormone Deficiency Syndrome: Benefits and Risks. Int J Mol Sci 2018; 19:ijms19030893. [PMID: 29562611 PMCID: PMC5877754 DOI: 10.3390/ijms19030893] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 03/07/2018] [Accepted: 03/14/2018] [Indexed: 12/14/2022] Open
Abstract
Pharmacological treatment of growth hormone deficiency (GHD) in adults began in clinical practice more than 20 years ago. Since then, a great volume of experience has been accumulated on its effects on the symptoms and biochemical alterations that characterize this hormonal deficiency. The effects on body composition, muscle mass and strength, exercise capacity, glucose and lipid profile, bone metabolism, and quality of life have been fully demonstrated. The advance of knowledge has also taken place in the biological and molecular aspects of the action of this hormone in patients who have completed longitudinal growth. In recent years, several epidemiological studies have reported interesting information about the long-term effects of GH replacement therapy in regard to the possible induction of neoplasms and the potential development of diabetes. In addition, GH hormone receptor polymorphism could potentially influence GH therapy. Long-acting GH are under development to create a more convenient GH dosing profile, while retaining the excellent safety, efficacy, and tolerability of daily GH. In this article we compile the most recent data of GH replacement therapy in adults, as well as the molecular aspects that may condition a different sensitivity to this treatment.
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42
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Fleseriu M. Recombinant growth hormone treatment, osteoporosis and fractures, more complicated than it seems! Endocrine 2018; 59:463-465. [PMID: 29352456 DOI: 10.1007/s12020-017-1519-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 12/29/2017] [Indexed: 10/18/2022]
Affiliation(s)
- Maria Fleseriu
- Northwest Pituitary Center, Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, and Department of Neurological Surgery, Oregon Health & Science University, Mail Code: CH8N, 3303 SW Bond Ave., Portland, OR, 97239, USA.
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Barake M, Arabi A, Nakhoul N, El-Hajj Fuleihan G, El Ghandour S, Klibanski A, Tritos NA. Effects of growth hormone therapy on bone density and fracture risk in age-related osteoporosis in the absence of growth hormone deficiency: a systematic review and meta-analysis. Endocrine 2018; 59:39-49. [PMID: 29030774 DOI: 10.1007/s12020-017-1440-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 09/25/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE In adults, growth hormone deficiency (GHD) has been associated with low bone mineral density (BMD), an effect counteracted by growth hormone (GH) replacement. Whether GH is beneficial in adults with age-related bone loss and without hypopituitarism is unclear. METHODS We conducted a systematic literature search using Medline, Embase and the Cochrane Register of Controlled Trials. We extracted and analyzed data according to the bone outcome included [bone mineral content (BMC), BMD, and bone biomarker, fracture risk]. We performed a meta-analysis when possible. RESULTS We included eight studies. Seven randomized 272 post-menopausal women, 61-69 years, to GH or control, for 6-24 months, and the eighth was an extension trial. Except for one study, all women received concurrent osteoporosis therapies. There was no significant effect of GH, as compared to control, on BMD at the lumbar spine (Weighted mean difference WMD = -0.01 [-0.04, 0.02]), total hip (WMD = 0 [-0.05, 0.06]) or femoral neck (WMD = 0 [-0.03, 0.04]). Similarly, no effect was seen on BMC. GH significantly increased the bone formation marker procollagen type-I carboxy-terminal propeptide (PICP) (WMD = 14.03 [2.68, 25.38]). GH resulted in a trend for increase in osteocalcin and in bone resorption markers. Patients who received GH had a significant decrease in fracture risk as compared to control (RR = 0.63 [0.46, 0.87]). Reported adverse events were not major, mostly related to fluid retention. CONCLUSION GH may not improve bone density in women with age-related bone loss but may decrease fracture risk. Larger studies of longer duration are needed to further explore these findings in both genders, and to investigate the effect of GH on bone quality.
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Affiliation(s)
- Maya Barake
- Scholars in HeAlth Research Program, American University of Beirut, Beirut, Lebanon.
- Clemenceau Medical Center, Beirut, Lebanon.
| | - Asma Arabi
- Scholars in HeAlth Research Program, American University of Beirut, Beirut, Lebanon
- Calcium Metabolism and Osteoporosis Program, WHO Collaborating Center for Metabolic Bone Diseases, American University of Beirut, Beirut, Lebanon
| | - Nancy Nakhoul
- Scholars in HeAlth Research Program, American University of Beirut, Beirut, Lebanon
- Department of Internal Medicine, American University of Beirut, Beirut, Lebanon
| | - Ghada El-Hajj Fuleihan
- Scholars in HeAlth Research Program, American University of Beirut, Beirut, Lebanon
- Calcium Metabolism and Osteoporosis Program, WHO Collaborating Center for Metabolic Bone Diseases, American University of Beirut, Beirut, Lebanon
| | | | - Anne Klibanski
- Massacchusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Nicholas A Tritos
- Massacchusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Abstract
Over the last three decades, short- and long-term observational studies, clinical trials, systematic reviews, and meta-analyses have provided relevant information on the efficacy and safety of growth hormone (GH) replacement therapy in adults with GH deficiency (AGHD). The knowledge acquired during this time has been compiled into different guidelines that offer clinicians an evidence-based, practical approach for the management of AGHD. There are, however, still open questions in some key areas in which recommendations are supported by only moderate or weak evidence. In the last recent years, the development of long-acting GH preparations has created new therapeutic possibilities by decreasing injection frequency, improving adherence and thereby potentially maximizing clinical outcomes. The aims of this review are to advance our understanding on the diagnosis and treatment of AGHD and to present an update and future perspectives on the use of long-acting GH preparations.
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Affiliation(s)
- Cesar Luiz Boguszewski
- Endocrine Division (SEMPR), Department of Internal Medicine, Federal University of Parana, Curitiba, Brazil
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45
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Silva PPB, Amlashi FG, Yu EW, Pulaski-Liebert KJ, Gerweck AV, Fazeli PK, Lawson E, Nachtigall LB, Biller BMK, Miller KK, Klibanski A, Bouxsein M, Tritos NA. Bone microarchitecture and estimated bone strength in men with active acromegaly. Eur J Endocrinol 2017; 177:409-420. [PMID: 28780520 DOI: 10.1530/eje-17-0468] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/17/2017] [Accepted: 08/03/2017] [Indexed: 02/04/2023]
Abstract
CONTEXT Both acromegaly and adult growth hormone deficiency (GHD) are associated with increased fracture risk. Sufficient data are lacking regarding cortical bone microarchitecture and bone strength, as assessed by microfinite element analysis (µFEA). OBJECTIVE To elucidate both cortical and trabecular bone microarchitecture and estimated bone strength in men with active acromegaly or GHD compared to healthy controls. DESIGN AND SUBJECTS Cross-sectional study at a clinical research center, including 48 men (16 with acromegaly, 16 with GHD and 16 healthy controls). OUTCOME MEASURES Areal bone mineral density (aBMD), cortical and trabecular bone microarchitecture and estimated bone strength (µFEA) at the radius and tibia. RESULTS aBMD was not different between the 3 groups at any skeletal site. At the radius, patients with acromegaly had greater cortical area (P < 0.0001), cortical thickness (P = 0.0038), cortical pore volume (P < 0.0001) and cortical porosity (P = 0.0008), but lower trabecular bone density (P = 0.0010) compared to controls. At the tibia, patients with acromegaly had lower trabecular bone density (P = 0.0082), but no differences in cortical bone microstructure. Compressive strength and failure load did not significantly differ between groups. These findings persisted after excluding patients with hypogonadism. Bone microarchitecture was not deficient in patients with GHD. CONCLUSIONS Both cortical and trabecular microarchitecture are altered in men with acromegaly. Our data indicate that GH excess is associated with distinct effects in cortical vs trabecular bone compartments. Our observations also affirm the limitations of aBMD testing in the evaluation of patients with acromegaly.
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Affiliation(s)
| | | | - Elaine W Yu
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | | | | | | | | | | | | | | | | | - Mary Bouxsein
- Department of Orthopedic Surgery and Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
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Abstract
Growth hormone (GH) exerts several effects on the skeleton, mediated either directly or indirectly, leading to increased bone formation and resorption rates. Patients with growth hormone deficiency (GHD) of adult onset have decreased bone mineral density (BMD) and increased fracture risk. Some, but not all, studies have found that adults with childhood onset GHD also have lower BMD than healthy controls. Adults with GHD of childhood onset have smaller bone dimensions, leading to possible underestimation of areal BMD (measured by dual energy X-ray absorptiometry), thus potentially confounding the interpretation of densitometric data. Available data suggest that patients with childhood onset GHD are at increased fracture risk. Prospective studies and some clinical trials found that GH replacement for at least 18-24 months leads to increased BMD. Retrospective and prospective data suggest that GH replacement is associated with decreased fracture risk in adults. However, data from randomized clinical trials are lacking.
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Affiliation(s)
- Nicholas A Tritos
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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Effects of Recombinant Human Growth Hormone for Osteoporosis: Systematic Review and Meta-Analysis. Can J Aging 2017; 36:41-54. [PMID: 28069090 DOI: 10.1017/s0714980816000696] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Our objective was to evaluate the efficacy of recombinant human growth hormone (GH) on bone mineral density (BMD) in persons age 50 and older, with normal pituitary function, with or at risk for developing osteoporosis. We systematically reviewed randomized clinical trials (RCTs), searching six databases, and conducted meta-analyses to examine GH effects on BMD of the lumbar spine and femoral neck. Data for fracture incidence, bone metabolism biomarkers, and adverse events were also extracted and analysed. Thirteen RCTs met the eligibility criteria. Pooled effect sizes suggested no significant GH effect on BMD. Pooled effect sizes were largest, but nonsignificant, when compared to placebo. GH had a significant effect on several bone metabolism biomarkers. A significantly higher rate of adverse events was observed in the GH groups. Meta-analysis of RCTs suggests that GH treatment for persons with or at risk for developing osteoporosis results in very small, nonsignificant increases in BMD.
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48
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Rucker K, de Sá LBPC, Arbex AK. Growth Hormone Replacement Therapy in Patients without Adult Growth Hormone Deficiency: What Answers Do We Have So Far? Health (London) 2017. [DOI: 10.4236/health.2017.95057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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49
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van Varsseveld NC, van Bunderen CC, Franken AAM, Koppeschaar HPF, van der Lely AJ, Drent ML. Fractures in pituitary adenoma patients from the Dutch National Registry of Growth Hormone Treatment in Adults. Pituitary 2016; 19:381-90. [PMID: 27048484 PMCID: PMC4935735 DOI: 10.1007/s11102-016-0716-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
PURPOSE The effects of growth hormone (GH) replacement therapy on fracture risk in adult GH deficient (GHD) patients with different etiologies of pituitary GHD are not well known, due to limited data. The aim of this study was to investigate characteristics and fracture occurrence at start of (baseline) and during long-term GH replacement therapy in GHD adults previously treated for Cushing's disease (CD) or acromegaly, compared to patients with previous nonfunctioning pituitary adenoma (NFPA). METHODS From the Dutch National Registry of Growth Hormone Treatment in Adults, a nationwide surveillance study in severe GHD adults, all patients using ≥30 days of GH replacement therapy with previous NFPA (n = 783), CD (n = 180) and acromegaly (n = 65) were selected. Patient characteristics, fractures and potential influencing factors were investigated. RESULTS At baseline, patients with previous CD were younger, more often female and had more often a history of osteopenia or osteoporosis, whereas patients with previous acromegaly had more often received cranial radiotherapy and a longer duration between treatment of their pituitary tumor and start of adult GH replacement therapy. During follow-up, a fracture occurred in 3.8 % (n = 39) of all patients. Compared to patients with previous NFPA, only patients with previous acromegaly had an increased fracture risk after 6 years of GH replacement therapy. CONCLUSIONS During GH replacement therapy, an increased fracture risk was observed in severe GHD adult patients previously treated for acromegaly, but not in those previously treated for CD, compared to severe GHD adult patients using GH replacement therapy because of previous NFPA. Further studies are needed to confirm these findings and to elucidate potential underlying mechanisms.
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Affiliation(s)
- N C van Varsseveld
- Department of Internal Medicine, Endocrine section, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands.
| | - C C van Bunderen
- Department of Internal Medicine, Endocrine section, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands
| | - A A M Franken
- Department of Internal Medicine, Isala Clinics, Zwolle, The Netherlands
| | - H P F Koppeschaar
- Emotional Brain and Alan Turing Institute for Multidisciplinary Health Research, Almere, The Netherlands
| | - A J van der Lely
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - M L Drent
- Department of Internal Medicine, Endocrine section, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands
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Affiliation(s)
- Nicholas A Tritos
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Zero Emerson Place # 112, Boston, MA, 02114, USA.
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