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Yang H, Chen M, Xu H, Zhen Y, Zhang Y, Wang L, Duan L, Gong F, Zhu H, Pan H. Bone mineral density in adults growth hormone deficiency with different ages of onset: a real-world retrospective study. Endocrine 2024; 85:347-355. [PMID: 38536548 DOI: 10.1007/s12020-024-03786-4] [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: 07/25/2023] [Accepted: 03/12/2024] [Indexed: 07/14/2024]
Abstract
PURPOSE Bone mineral density (BMD) impairment is one of the critical factors for long-term quality of life in adults growth hormone deficiency (AGHD). This study aims to investigate the annual changes in BMD in AGHD patients with different ages of onset and to identify predicting factors that influence BMD. METHODS AGHD patients (n = 160) with available data for 4 years follow-up from a major tertiary medical center in China were retrospectively included (110 [68.8%] childhood-onset, 119 [74.4%] male). BMD of the axial bone (including total hip, neck of femur, and L1-4) derived from dual X-ray absorptiometry and final height were investigated at the first visit, 12 months, 24 months, 36 months, and 48 months thereafter. Low BMD was defined as Z-score ≤ -2. RESULTS The prevalence of low BMD was 30.0% at baseline and 12.5% at 4 years of follow-up. The CO AGHD group presented a significantly lower BMD than the AO AGHD group at the baseline (P = 0.009). In contrast, the CO AGHD group had significantly greater median annual BMD change than the AO AGHD group (0.044 vs. -0.0003 g/cm2/year in L1-4, P < 0.001), indicating a significant difference in the overall BMD trend between CO and AO groups. Childhood-onset (odds ratio [OR] 0.326, P = 0.012), low serum testosterone (OR 0.847; P = 0.004) and FT4 (OR 0.595; P = 0.039) level were independent risk factors for BMD loss. CONCLUSION The annual changes of BMD show a different pattern in AGHD patients with varying ages of onset. Patients with CO AGHD have a lower bone mass, and in general, appropriate replacement therapy is necessary for long-term bone health in AGHD patients.
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Affiliation(s)
- Hongbo Yang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China
| | - Meiping Chen
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China
| | - Hanyuan Xu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China
- Department of Clinical Nutrition, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China
| | - Yunfeng Zhen
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Yuelun Zhang
- Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China
| | - Linjie Wang
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China
| | - Lian Duan
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China
| | - Fengying Gong
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China
| | - Huijuan Zhu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China.
| | - Hui Pan
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng District, Beijing, China.
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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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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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Glynn N, Halsall DJ, Boran G, Cook P, McDermott JH, Smith D, Tormey W, Thompson CJ, O'Gorman D, McKenna MJ, Agha A. Growth hormone replacement may influence the biological action of thyroid hormone on liver and bone tissue. Growth Horm IGF Res 2021; 57-58:101393. [PMID: 33971491 DOI: 10.1016/j.ghir.2021.101393] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 04/17/2021] [Accepted: 04/23/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Growth hormone (GH) replacement alters the peripheral interconversion of thyroxine (T4) and triiodothyronine (T3). However, little is known about the clinical impact of these alterations. We aimed to compare changes observed in the serum T3:T4 ratio with known biological markers of thyroid hormone action derived from different peripheral tissues. DESIGN We prospectively studied twenty GH deficient men before and after GH replacement in a tertiary referral endocrine center. Serum biochemical measurements included insulin like growth factor-1 (IGF-1), thyroid hormones (free & total T3, free & total T4 and reverse T3) and TSH. Changes in thyroid hormone concentration were compared to alterations in hepatic and bone biomarkers of thyroid hormone action. RESULTS GH replacement provoked a decline in serum free T4 concentration (-1.09 ± 1.99 pmol/L; p = 0.02) and an increase in free T3 (+0.34 ± 0.15 pmol/L; p = 0.03); therefore, the free T3:free T4 ratio increased from 0.40 ± 0.02 to 0.47 ± 0.02 (p = 0.002). Sex hormone binding globulin (SHBG) level was unchanged. However, a decline in serum ferritin (-26.6 ± 8.5 ng/mL; p = 0.005) correlated with a fall in freeT4. Alterations in lipid profile, including a rise in large HDL sub-fractions and Lp (a) (+2.1 ± 21.1 nmol/L; p = 0.002) did not correlate with thyroid hormone levels. Significant increases were recorded in serum bone turnover markers - procollagen type 1 amino-terminal propeptide +57.4%; p = 0.0009, osteocalcin +48.6%; p = 0.0007; c-terminal telopeptides of type 1 collagen +73.7%; p = 0.002. Changes in bone formation markers occurred in parallel with fluctuations in thyroid hormone. CONCLUSION GH-induced alterations in the thyroid axis are associated with complex, tissue specific effects on thyroid hormone action. Modulation of bone turnover markers suggests that GH may improve the biological action of thyroid hormone on bone.
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Affiliation(s)
- Nigel Glynn
- Department of Endocrinology, Beaumont Hospital, Dublin, Ireland
| | - David J Halsall
- Department of Clinical Biochemistry, Addenbrooke's Hospital, Cambridge, UK
| | - Gerard Boran
- Department of Clinical Biochemistry, Tallaght University Hospital, Dublin, Ireland
| | - Paul Cook
- Department of Chemical Pathology, University Hospital Southampton, UK
| | - John H McDermott
- Department of Endocrinology, Connolly Memorial Hospital, Dublin, Ireland
| | - Diarmuid Smith
- Department of Endocrinology, Beaumont Hospital, Dublin, Ireland
| | - William Tormey
- Department of Chemical Pathology, Beaumont Hospital, Dublin, Ireland
| | | | - Donal O'Gorman
- 3U Diabetes Consortium, National Institute for Cellular Biotechnology, School of Health and Human Performance, Dublin City University, Ireland
| | - Malachi J McKenna
- Department of Endocrinology, St Vincent's University Hospital, Dublin, Ireland
| | - Amar Agha
- Department of Endocrinology, Beaumont Hospital, Dublin, Ireland.
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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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Witkowska-Sędek E, Rumińska M, Majcher A, Pyrżak B. Gender-Dependent Growth and Insulin-Like Growth Factor-1 Responses to Growth Hormone Therapy in Prepubertal Growth Hormone-Deficient Children. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1133:65-73. [PMID: 30338487 DOI: 10.1007/5584_2018_284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Gender seems to be an important factor influencing the response to recombinant human growth hormone (rhGH) therapy in GH-deficient adolescents and adults. The results of studies evaluating gender-specific response to rhGH therapy in prepubertal GH-deficient children are divergent. The aim of this study was to determine the effect of gender on the growth and insulin-like growth factor-1 (IGF-1) responses in 75 prepubertal GH-deficient children during the first 2 years of rhGH therapy. There were no baseline gender differences in age, bone age, anthropometrical parameters, and IGF-1 SDS for bone age. After the initiation of rhGH therapy, there were no gender-specific differences concerning the reduction of height deficit. Serum IGF-1 levels were higher in the prepubertal GH-deficient girls than in the age-matched boys, but the difference was not significant when expressed as IGF-1 SDS for bone age. The increase in IGF-1 SDS for bone age was significantly greater in girls versus boys after the first 6 months of therapy, comparable between girls and boys after the first year of therapy, and tended to be higher in boys after the second year of therapy. In conclusion, prepubertal GH-deficient girls and boys do not differ significantly in growth response in the first 2 years of rhGH therapy.
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Affiliation(s)
| | - Małgorzata Rumińska
- Department of Paediatrics and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Anna Majcher
- Department of Paediatrics and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Beata Pyrżak
- Department of Paediatrics and Endocrinology, Medical University of Warsaw, Warsaw, Poland
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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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Gasco V, Caputo M, Lanfranco F, Ghigo E, Grottoli S. Management of GH treatment in adult GH deficiency. Best Pract Res Clin Endocrinol Metab 2017; 31:13-24. [PMID: 28477728 DOI: 10.1016/j.beem.2017.03.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Growth hormone (GH) replacement therapy in adults with GH deficiency is still a challenge for the clinical endocrinologist and its implementation has still numerous difficulties and uncertainties. The decision to treat GH deficient adults requires a thoughtful and individualized evaluation of risks and benefits. Benefits have been found in body composition, bone health, cardiovascular risk factors, and quality of life. However, evidences for a reduction in cardiovascular events and mortality are still lacking, and treatment costs remain high. It is advisable to start treatment with low doses of GH, the goals being an appropriate clinical response, an avoidance of side effects, and IGF-I levels in the age-adjusted reference range. Although treatment appears to be overall safe, certain areas continue to require long-term surveillance, such as risks of glucose intolerance, pituitary/hypothalamic tumor recurrence, and cancer.
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Affiliation(s)
- Valentina Gasco
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Science, University of Turin, Turin, Italy.
| | - Marina Caputo
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Science, University of Turin, Turin, Italy
| | - Fabio Lanfranco
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Science, University of Turin, Turin, Italy
| | - Ezio Ghigo
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Science, University of Turin, Turin, Italy
| | - Silvia Grottoli
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Science, University of Turin, Turin, Italy
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Fleseriu M, Hashim IA, Karavitaki N, Melmed S, Murad MH, Salvatori R, Samuels MH. Hormonal Replacement in Hypopituitarism in Adults: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab 2016; 101:3888-3921. [PMID: 27736313 DOI: 10.1210/jc.2016-2118] [Citation(s) in RCA: 484] [Impact Index Per Article: 60.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To formulate clinical practice guidelines for hormonal replacement in hypopituitarism in adults. PARTICIPANTS The participants include an Endocrine Society-appointed Task Force of six experts, a methodologist, and a medical writer. The American Association for Clinical Chemistry, the Pituitary Society, and the European Society of Endocrinology co-sponsored this guideline. EVIDENCE The Task Force developed this evidence-based guideline using the Grading of Recommendations, Assessment, Development, and Evaluation system to describe the strength of recommendations and the quality of evidence. The Task Force commissioned two systematic reviews and used the best available evidence from other published systematic reviews and individual studies. CONSENSUS PROCESS One group meeting, several conference calls, and e-mail communications enabled consensus. Committees and members of the Endocrine Society, the American Association for Clinical Chemistry, the Pituitary Society, and the European Society of Endocrinology reviewed and commented on preliminary drafts of these guidelines. CONCLUSIONS Using an evidence-based approach, this guideline addresses important clinical issues regarding the evaluation and management of hypopituitarism in adults, including appropriate biochemical assessments, specific therapeutic decisions to decrease the risk of co-morbidities due to hormonal over-replacement or under-replacement, and managing hypopituitarism during pregnancy, pituitary surgery, and other types of surgeries.
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Affiliation(s)
- Maria Fleseriu
- Oregon Health & Science University, Northwest Pituitary Center (M.F.), and Departments of Neurological Surgery and Medicine (Division of Endocrinology, Diabetes, and Clinical Nutrition), Portland, Oregon 97239; Department of Pathology (I.A.H.), University of Texas Southwestern Medical Center, Dallas, Texas 75390; Institute of Metabolism and Systems Research (N.K.), College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom; Centre for Endocrinology, Diabetes, and Metabolism (N.K.), Birmingham Health Partners, Birmingham B15 2TH, United Kingdom, Pituitary Center (S.M.), Cedars-Sinai Medical Center, Los Angeles, California 90048; Mayo Clinic Evidence-Based Practice Center, (M.H.M), Rochester, Minnesota 55905; Department of Medicine, Division of Endocrinology and Metabolism (R.S.), Pituitary Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287; and Division of Endocrinology, Diabetes, and Clinical Nutrition (M.H.S.), Oregon Health & Science University, Portland, Oregon 97239
| | - Ibrahim A Hashim
- Oregon Health & Science University, Northwest Pituitary Center (M.F.), and Departments of Neurological Surgery and Medicine (Division of Endocrinology, Diabetes, and Clinical Nutrition), Portland, Oregon 97239; Department of Pathology (I.A.H.), University of Texas Southwestern Medical Center, Dallas, Texas 75390; Institute of Metabolism and Systems Research (N.K.), College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom; Centre for Endocrinology, Diabetes, and Metabolism (N.K.), Birmingham Health Partners, Birmingham B15 2TH, United Kingdom, Pituitary Center (S.M.), Cedars-Sinai Medical Center, Los Angeles, California 90048; Mayo Clinic Evidence-Based Practice Center, (M.H.M), Rochester, Minnesota 55905; Department of Medicine, Division of Endocrinology and Metabolism (R.S.), Pituitary Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287; and Division of Endocrinology, Diabetes, and Clinical Nutrition (M.H.S.), Oregon Health & Science University, Portland, Oregon 97239
| | - Niki Karavitaki
- Oregon Health & Science University, Northwest Pituitary Center (M.F.), and Departments of Neurological Surgery and Medicine (Division of Endocrinology, Diabetes, and Clinical Nutrition), Portland, Oregon 97239; Department of Pathology (I.A.H.), University of Texas Southwestern Medical Center, Dallas, Texas 75390; Institute of Metabolism and Systems Research (N.K.), College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom; Centre for Endocrinology, Diabetes, and Metabolism (N.K.), Birmingham Health Partners, Birmingham B15 2TH, United Kingdom, Pituitary Center (S.M.), Cedars-Sinai Medical Center, Los Angeles, California 90048; Mayo Clinic Evidence-Based Practice Center, (M.H.M), Rochester, Minnesota 55905; Department of Medicine, Division of Endocrinology and Metabolism (R.S.), Pituitary Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287; and Division of Endocrinology, Diabetes, and Clinical Nutrition (M.H.S.), Oregon Health & Science University, Portland, Oregon 97239
| | - Shlomo Melmed
- Oregon Health & Science University, Northwest Pituitary Center (M.F.), and Departments of Neurological Surgery and Medicine (Division of Endocrinology, Diabetes, and Clinical Nutrition), Portland, Oregon 97239; Department of Pathology (I.A.H.), University of Texas Southwestern Medical Center, Dallas, Texas 75390; Institute of Metabolism and Systems Research (N.K.), College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom; Centre for Endocrinology, Diabetes, and Metabolism (N.K.), Birmingham Health Partners, Birmingham B15 2TH, United Kingdom, Pituitary Center (S.M.), Cedars-Sinai Medical Center, Los Angeles, California 90048; Mayo Clinic Evidence-Based Practice Center, (M.H.M), Rochester, Minnesota 55905; Department of Medicine, Division of Endocrinology and Metabolism (R.S.), Pituitary Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287; and Division of Endocrinology, Diabetes, and Clinical Nutrition (M.H.S.), Oregon Health & Science University, Portland, Oregon 97239
| | - M Hassan Murad
- Oregon Health & Science University, Northwest Pituitary Center (M.F.), and Departments of Neurological Surgery and Medicine (Division of Endocrinology, Diabetes, and Clinical Nutrition), Portland, Oregon 97239; Department of Pathology (I.A.H.), University of Texas Southwestern Medical Center, Dallas, Texas 75390; Institute of Metabolism and Systems Research (N.K.), College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom; Centre for Endocrinology, Diabetes, and Metabolism (N.K.), Birmingham Health Partners, Birmingham B15 2TH, United Kingdom, Pituitary Center (S.M.), Cedars-Sinai Medical Center, Los Angeles, California 90048; Mayo Clinic Evidence-Based Practice Center, (M.H.M), Rochester, Minnesota 55905; Department of Medicine, Division of Endocrinology and Metabolism (R.S.), Pituitary Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287; and Division of Endocrinology, Diabetes, and Clinical Nutrition (M.H.S.), Oregon Health & Science University, Portland, Oregon 97239
| | - Roberto Salvatori
- Oregon Health & Science University, Northwest Pituitary Center (M.F.), and Departments of Neurological Surgery and Medicine (Division of Endocrinology, Diabetes, and Clinical Nutrition), Portland, Oregon 97239; Department of Pathology (I.A.H.), University of Texas Southwestern Medical Center, Dallas, Texas 75390; Institute of Metabolism and Systems Research (N.K.), College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom; Centre for Endocrinology, Diabetes, and Metabolism (N.K.), Birmingham Health Partners, Birmingham B15 2TH, United Kingdom, Pituitary Center (S.M.), Cedars-Sinai Medical Center, Los Angeles, California 90048; Mayo Clinic Evidence-Based Practice Center, (M.H.M), Rochester, Minnesota 55905; Department of Medicine, Division of Endocrinology and Metabolism (R.S.), Pituitary Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287; and Division of Endocrinology, Diabetes, and Clinical Nutrition (M.H.S.), Oregon Health & Science University, Portland, Oregon 97239
| | - Mary H Samuels
- Oregon Health & Science University, Northwest Pituitary Center (M.F.), and Departments of Neurological Surgery and Medicine (Division of Endocrinology, Diabetes, and Clinical Nutrition), Portland, Oregon 97239; Department of Pathology (I.A.H.), University of Texas Southwestern Medical Center, Dallas, Texas 75390; Institute of Metabolism and Systems Research (N.K.), College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom; Centre for Endocrinology, Diabetes, and Metabolism (N.K.), Birmingham Health Partners, Birmingham B15 2TH, United Kingdom, Pituitary Center (S.M.), Cedars-Sinai Medical Center, Los Angeles, California 90048; Mayo Clinic Evidence-Based Practice Center, (M.H.M), Rochester, Minnesota 55905; Department of Medicine, Division of Endocrinology and Metabolism (R.S.), Pituitary Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287; and Division of Endocrinology, Diabetes, and Clinical Nutrition (M.H.S.), Oregon Health & Science University, Portland, Oregon 97239
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10
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Appelman-Dijkstra NM, Claessen KMJA, Hamdy NAT, Pereira AM, Biermasz NR. Effects of up to 15 years of recombinant human GH (rhGH) replacement on bone metabolism in adults with growth hormone deficiency (GHD): the Leiden Cohort Study. Clin Endocrinol (Oxf) 2014; 81:727-35. [PMID: 24816144 DOI: 10.1111/cen.12493] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 04/11/2014] [Accepted: 05/01/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND Growth hormone deficiency (GHD) in adulthood may be associated with a decreased bone mineral density (BMD), a decreased bone mineral content (BMC) and an increased fracture risk. Recombinant human GH (rhGH) replacement induces a progressive increase in BMD for up to 5-7 years of treatment. Data on longer follow-up are, however, scarce. METHODS Two hundred and thirty-adult GHD patients (mean age 47·1 years, 52·6% female), of whom 88% patients had adult-onset (AO) GHD, receiving rhGH replacement for ≥5 years were included in the study. Most patients had multiple pituitary hormone deficiencies. Bone turnover markers, BMC and BMD and T-scores at the lumbar spine and femoral neck were evaluated at baseline, and after 5, 10 and 15 years of rhGH replacement. In addition, clinical fracture incidence was assessed. RESULTS Mean lumbar spine BMD, lumbar spine BMC and T-scores gradually increased during the first 10 years of rhGH replacement and remained stable thereafter. Largest effects of rhGH supplementation were found in men. In the small subset of patients using bisphosphonates, use of bisphosphonates did not impact additional beneficial effects in the long term. Low baseline BMD positively affected the change in BMD and BMC over time, but there was a negative effect of high GH dose at 1 year on the change in BMD and BMC over time. Clinical fracture incidence during long-term rhGH replacement was 20.1/1000 py. CONCLUSIONS Fifteen years of rhGH replacement in GHD adults resulted in a sustained increase in BMD values at the lumbar spine, particularly in men, and stabilization of BMD values at the femoral neck. Clinical fracture incidence was suggested not to be increased during long-term rhGH replacement.
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Affiliation(s)
- Natasha M Appelman-Dijkstra
- Department of Endocrinology and Metabolism, Center for Endocrine Tumors Leiden and, Leiden, The Netherlands; Center for Bone Quality Leiden, Leiden University Medical Center, Leiden, The Netherlands
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11
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Fukuda I, Hizuka N, Muraoka T, Ichihara A. Adult growth hormone deficiency: current concepts. Neurol Med Chir (Tokyo) 2014. [PMID: 25070016 PMCID: PMC4533495 DOI: 10.2176/nmc.ra.2014-0088] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The clinical syndrome of adult growth hormone deficiency (AGHD) was widely recognized in the 1980s. In this review, we first describe the clinical features and diagnosis of AGHD and then state the effects of growth hormone (GH) therapy for these patients. The main characteristics of AGHD are abnormal body composition, dyslipidemia, insulin resistance, and an impaired quality of life (QoL) due to decreased psychological well-being. For diagnosing AGHD, the international consensus guidelines have suggested that an insulin tolerance test (ITT) is the gold standard, but in Japan, the growth hormone releasing peptide-2 (GHRP-2) test is available and is recommended as a convenient and safe GH stimulating test. The cut-off for diagnosing severe AGHD is a peak GH concentration of 9 g/L during the GHRP-2 test. Since 2006, GH therapy has been approved for Japanese patients with severe AGHD. For adults, GH replacement therapy should be initiated at a low dose (3 g/kg body weight/day), followed by individualized dose titration while monitoring patients' clinical status and serum insulin-like growth factor-I (IGF-I) concentrations. A variety of favorable effects of GH replacement have been indicated; however, it has not yet been established fully whether there is a direct effect of GH treatment on reducing mortality.
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Affiliation(s)
- Izumi Fukuda
- Department of Medicine II, Tokyo Women's Medical University
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12
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Barake M, Klibanski A, Tritos NA. Effects of recombinant human growth hormone therapy on bone mineral density in adults with growth hormone deficiency: a meta-analysis. J Clin Endocrinol Metab 2014; 99:852-60. [PMID: 24423364 DOI: 10.1210/jc.2013-3921] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE GH deficiency is associated with decreased bone mineral density (BMD) and increased fracture risk. Because the effects of recombinant human GH (rhGH) therapy on BMD and bone mineral content have not been systematically investigated, we conducted a meta-analysis of pertinent studies. DESIGN A thorough search of the literature (MEDLINE, EMBASE, and the Cochrane Register) was performed. Relevant studies were divided and analyzed according to their design (randomized/controlled or prospective/retrospective) and duration of rhGH therapy (≤12 months and > 12 months). RESULTS Administration of rhGH led to a significant increase in lumbar spine (LS) and femoral neck (FN) BMD in randomized/controlled studies of more than 1 year [weighted mean difference (95% confidence interval)] of 0.038 g/cm(2) (0.011-0.065) and 0.021 g/cm(2) (0.006-0.037) at the LS and FN, respectively, and a nonsignificant drop at the same sites in studies of shorter duration. In prospective studies, a significant increase in the LS and FN BMD was obtained. On meta-regression, a negative association was observed between the change in LS and FN BMD and subjects' age and a positive association between the BMD change and treatment duration. In a subgroup analysis, the increase in LS and FN BMD was significant in men [0.048 g/cm(2) (0.033-0.064) and 0.051 g/cm(2) (0.003-0.098), respectively] but not in women. CONCLUSION This meta-analysis suggests a beneficial effect of rhGH replacement on BMD in adults with GH deficiency. This effect is affected by gender, age, and treatment duration. Larger studies are needed to evaluate the effect of rhGH on fracture risk.
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Affiliation(s)
- Maya Barake
- Neuroendocrine Unit (M.B., A.K., N.A.T.), Department of Medicine, Massachusetts General Hospital, and Harvard Medical School (M.B., A.K., N.A.T.), Boston, Massachusetts 2114; and Bellevue University Medical Center (M.B.), 00961 Beirut, Lebanon
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13
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Tritos NA, Hamrahian AH, King D, Greenspan SL, Cook DM, Jönsson PJ, Koltowska-Häggstrom M, Biller BMK. Predictors of the effects of 4 years of growth hormone replacement on bone mineral density in patients with adult-onset growth hormone deficiency - a KIMS database analysis. Clin Endocrinol (Oxf) 2013; 79:178-84. [PMID: 23278636 PMCID: PMC4891937 DOI: 10.1111/cen.12132] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 11/04/2012] [Accepted: 12/16/2012] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Growth hormone (GH) replacement may increase bone mineral density (BMD) in GH-deficient (GHD) adults. The goal of this study was to identify predictors of BMD response to GH replacement in GH naïve adults. DESIGN AND MEASUREMENTS This was a retrospective analysis of data extracted from KIMS (Pfizer International Metabolic Database), an international pharmacoepidemiological survey of adult GHD patients from 31 countries. PATIENTS A total of 231 GH naive adults were identified (115 women and 116 men) who had BMD measured on the same densitometer in the lumbar spine (LS) and/or femoral neck (FN) both at baseline and after 4 years of GH replacement. RESULTS After 4 years, there was a median (10th, 90th percentile) 4·6% (-5·2%, 12·2%) increase in LS BMD over baseline (P = 0·0001). There was a positive correlation between per cent change in LS BMD and age at the onset of pituitary disease (r = 0·25, P = 0·001). There was no change in FN BMD over baseline [0·0% (-7·3%, 8·5%)]. On multivariate analysis, older age at the onset of pituitary disease predicted a greater increase in LS BMD on GH replacement (r = 0·55, P < 0·0001). CONCLUSIONS In a population of GH naïve adults, GH replacement led to a significant increase in LS BMD over baseline, but no change in FN BMD. The potential for greater BMD improvement on GH replacement therapy in adults with disease of later onset should be considered when making treatment decisions in this patient population.
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Affiliation(s)
- Nicholas A Tritos
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
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14
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Bolamperti S, Mrak E, Moro G, Sirtori P, Fraschini G, Guidobono F, Rubinacci A, Villa I. 17β-Estradiol positively modulates growth hormone signaling through the reduction of SOCS2 negative feedback in human osteoblasts. Bone 2013; 55:84-92. [PMID: 23567159 DOI: 10.1016/j.bone.2013.03.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 03/22/2013] [Accepted: 03/23/2013] [Indexed: 10/27/2022]
Abstract
Recent evidence demonstrated an interplay between estrogens and growth hormone (GH) at cellular level. To investigate the possible mechanism/s involved, we studied the effect of 17β-estradiol (E2) on GH signaling pathways in primary culture of human osteoblasts (hOBs). Exposure of hOBs to E2 (10(-8) M) 60 min before GH (5 ng/ml) significantly increased phosphorylated STAT5 (P-STAT5) levels compared with GH alone. E2 per se had no effect on P-STAT5. E2-enhanced GH signaling was effective in increasing osteopontin, bone-sialoprotein, and IGF II mRNA expression to a greater extent than GH alone. We then studied the effect of E2 on the protein levels of the negative regulator of GH signaling, suppressor of cytokine signaling-2 (SOCS2). E2 (10(-11) M-10(-7) M) reduced dose-dependently SOCS2 protein levels without modifying its mRNA expression. The silencing of SOCS2 gene prevented E2 positive effect on GH induced P-STAT5 and on GH induced bone-sialoprotein and osteopontin mRNA expression. Treatment with the inhibitor of DNA-dependent RNA synthesis, actinomycin-D, did not prevent E2 induced decrease of SOCS2, thus suggesting a non-genomic effect. E2 promoted an increase in SOCS2 ubiquitination. To determine if increased ubiquitination of SOCS2 by E2 led to degradation by proteasome, hOBs were pretreated with the proteasome inhibitor MG132 (5 μM) which blocked E2 reduction of SOCS2. These findings demonstrate for the first time that E2 can amplify GH intracellular signaling in hOBs with an essential role played by the reduction of the SOCS2 mediated feedback loop.
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Affiliation(s)
- Simona Bolamperti
- Bone Metabolism Unit, San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milano, Italy
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15
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Reed ML, Merriam GR, Kargi AY. Adult growth hormone deficiency - benefits, side effects, and risks of growth hormone replacement. Front Endocrinol (Lausanne) 2013; 4:64. [PMID: 23761782 PMCID: PMC3671347 DOI: 10.3389/fendo.2013.00064] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 05/18/2013] [Indexed: 11/26/2022] Open
Abstract
Deficiency of growth hormone (GH) in adults results in a syndrome characterized by decreased muscle mass and exercise capacity, increased visceral fat, impaired quality of life, unfavorable alterations in lipid profile and markers of cardiovascular risk, decrease in bone mass and integrity, and increased mortality. When dosed appropriately, GH replacement therapy (GHRT) is well tolerated, with a low incidence of side effects, and improves most of the alterations observed in GH deficiency (GHD); beneficial effects on mortality, cardiovascular events, and fracture rates, however, remain to be conclusively demonstrated. The potential of GH to act as a mitogen has resulted in concern over the possibility of increased de novo tumors or recurrence of pre-existing malignancies in individuals treated with GH. Though studies of adults who received GHRT in childhood have produced conflicting reports in this regard, long-term surveillance of adult GHRT has not demonstrated increased cancer risk or mortality.
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Affiliation(s)
- Mary L. Reed
- Geriatrics and Extended Care, VA Puget Sound Health Care System, Madigan Health Care System, Tacoma, WA, USA
| | - George R. Merriam
- Division of Metabolism, Endocrinology, and Nutrition, VA Puget Sound Health Care System, University of Washington School of Medicine, Tacoma, WA, USA
| | - Atil Y. Kargi
- Division of Endocrinology, Diabetes, and Metabolism, University of Miami Miller School of Medicine, Miami, FL, USA
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16
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Abstract
The availability of synthetic recombinant human growth hormone (GH) in potentially unlimited quantities since the 1980s has improved understanding of the many nonstatural effects of GH on metabolism, body composition, physical and psychological function, as well as the consequences of GH deficiency in adult life. Adult GH deficiency is now recognized as a distinct if nonspecific syndrome with considerable adverse health consequences. GH replacement therapy in lower doses than those used in children can reverse many of these abnormalities and restore functional capacities toward or even to normal; if dosed appropriately, GH therapy has few adverse effects. Although some doubts remain about possible long-term risks of childhood GH therapy, most registries of adult GH replacement therapy, albeit limited in study size and duration, have not shown an increased incidence of cancers or of cardiovascular morbidity or mortality.
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Affiliation(s)
- Atil Y Kargi
- Division of Endocrinology, Diabetes, and Metabolism, University of Miami Miller School of Medicine, 1400 North West 10th Avenue, Suite 807, Miami, FL 33136, USA
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17
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Xue P, Wang Y, Yang J, Li Y. Effects of growth hormone replacement therapy on bone mineral density in growth hormone deficient adults: a meta-analysis. Int J Endocrinol 2013; 2013:216107. [PMID: 23690770 PMCID: PMC3652209 DOI: 10.1155/2013/216107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 03/08/2013] [Accepted: 03/13/2013] [Indexed: 11/17/2022] Open
Abstract
Objectives. Growth hormone deficiency patients exhibited reduced bone mineral density compared with healthy controls, but previous researches demonstrated uncertainty about the effect of growth hormone replacement therapy on bone in growth hormone deficient adults. The aim of this study was to determine whether the growth hormone replacement therapy could elevate bone mineral density in growth hormone deficient adults. Methods. In this meta-analysis, searches of Medline, Embase, and The Cochrane Library were undertaken to identify studies in humans of the association between growth hormone treatment and bone mineral density in growth hormone deficient adults. Random effects model was used for this meta-analysis. Results. A total of 20 studies (including one outlier study) with 936 subjects were included in our research. We detected significant overall association of growth hormone treatment with increased bone mineral density of spine, femoral neck, and total body, but some results of subgroup analyses were not consistent with the overall analyses. Conclusions. Our meta-analysis suggested that growth hormone replacement therapy could have beneficial influence on bone mineral density in growth hormone deficient adults, but, in some subject populations, the influence was not evident.
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Affiliation(s)
- Peng Xue
- Department of Endocrinology, The Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, Hebei 050000, China
| | - Yan Wang
- Department of Endocrinology, The Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, Hebei 050000, China
| | - Jie Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei 050000, China
| | - Yukun Li
- Department of Endocrinology, The Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, Hebei 050000, China
- *Yukun Li:
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18
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Giannoulis MG, Martin FC, Nair KS, Umpleby AM, Sonksen P. Hormone replacement therapy and physical function in healthy older men. Time to talk hormones? Endocr Rev 2012; 33:314-77. [PMID: 22433122 PMCID: PMC5393154 DOI: 10.1210/er.2012-1002] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Improving physical function and mobility in a continuously expanding elderly population emerges as a high priority of medicine today. Muscle mass, strength/power, and maximal exercise capacity are major determinants of physical function, and all decline with aging. This contributes to the incidence of frailty and disability observed in older men. Furthermore, it facilitates the accumulation of body fat and development of insulin resistance. Muscle adaptation to exercise is strongly influenced by anabolic endocrine hormones and local load-sensitive autocrine/paracrine growth factors. GH, IGF-I, and testosterone (T) are directly involved in muscle adaptation to exercise because they promote muscle protein synthesis, whereas T and locally expressed IGF-I have been reported to activate muscle stem cells. Although exercise programs improve physical function, in the long-term most older men fail to comply. The GH/IGF-I axis and T levels decline markedly with aging, whereas accumulating evidence supports their indispensable role in maintaining physical function integrity. Several studies have reported that the administration of T improves lean body mass and maximal voluntary strength in healthy older men. On the other hand, most studies have shown that administration of GH alone failed to improve muscle strength despite amelioration of the detrimental somatic changes of aging. Both GH and T are anabolic agents that promote muscle protein synthesis and hypertrophy but work through separate mechanisms, and the combined administration of GH and T, albeit in only a few studies, has resulted in greater efficacy than either hormone alone. Although it is clear that this combined approach is effective, this review concludes that further studies are needed to assess the long-term efficacy and safety of combined hormone replacement therapy in older men before the medical rationale of prescribing hormone replacement therapy for combating the sarcopenia of aging can be established.
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Affiliation(s)
| | - Finbarr C. Martin
- Guy's and St. Thomas' National Health Service Foundation Trust (F.C.M.), and Institute of Gerontology (F.C.M.), King's College, London WC2R 2LS, United Kingdom
| | | | - A. Margot Umpleby
- Department of Human Metabolism, Diabetes, and Metabolic Medicine (A.M.U.), Postgraduate Medical School, University of Surrey, Guildford GU2 7WG, United Kingdom
| | - Peter Sonksen
- St. Thomas' Hospital and King's College (P.S.), London SE1 7EW, United Kingdom; and Southampton University (P.S.), SO17 1BJ, Southampton, United Kingdom
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19
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Elbornsson M, Götherström G, Bosæus I, Bengtsson BÅ, Johannsson G, Svensson J. Fifteen years of GH replacement increases bone mineral density in hypopituitary patients with adult-onset GH deficiency. Eur J Endocrinol 2012; 166:787-95. [PMID: 22318746 PMCID: PMC3341655 DOI: 10.1530/eje-11-1072] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Few studies have determined the effects of more than 5-10 years of GH replacement in adults on bone mineral content (BMC) and bone mineral density (BMD). DESIGN/PATIENTS In this prospective, single-centre, open-label study, the effects of 15 years of GH replacement on BMC and BMD, measured using dual-energy X-ray absorptiometry, were determined in 126 hypopituitary adults (72 men) with adult-onset GH deficiency (GHD). Mean age was 49.4 (range 22-74) years at the initiation of the study. RESULTS The mean initial GH dose of 0.63 (s.e.m. 0.03) mg/day was gradually lowered to 0.41 (0.01) mg/day after 15 years. The mean serum IGF1 SDS increased from -1.69 (0.11) at baseline to 0.63 (0.16) at the study end (P<0.001 vs baseline). The 15 years of GH replacement induced a sustained increase in total body BMC (+5%, P<0.001) and BMD (+2%, P<0.001). Lumbar (L2-L4) spine BMC increased by 9% (P<0.001) and BMD by 5% (P<0.001). In femur neck, a peak increase in BMC and BMD of 7 and 3%, respectively, was observed after 7 years (both P<0.001). After 15 years, femur neck BMC was 5% above the baseline value (P<0.01), whereas femur neck BMD had returned to the baseline level. In most variables, men had a more marked response to GH replacement than women. CONCLUSIONS Fifteen-year GH replacement in GHD adults induced a sustained increase in total body and lumbar (L2-L4) spine BMC and BMD. In femur neck, BMC and BMD peaked at 7 years and then decreased towards baseline values.
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Affiliation(s)
- Mariam Elbornsson
- Department of Endocrinology, Institute of Medicine, Sahlgrenska Academy, Sahlgrenska University Hospital, University of Gothenburg, Gröna Stråket 8, SE-413 45 Göteborg, Sweden.
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20
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Guttikonda S, Ahmadi S, Urban RJ. Pituitary dysfunction after traumatic brain injury: screening and hormone replacement. Expert Rev Endocrinol Metab 2011; 6:697-703. [PMID: 30780876 DOI: 10.1586/eem.11.59] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This article highlights the risk of hypopituitarism in survivors of traumatic brain injury (TBI), an underdiagnosed clinical problem. Clinical evidence shows that anterior pituitary dysfunction is common in TBI survivors evaluated at least 6 months after the TBI, with an estimated prevalence of up to 27.5%. Although patients who suffer from moderate-to-severe TBI appear to be at higher risk, the emerging data suggest that mild-intensity trauma can also precede hypopituitarism. Since many of the symptoms of hypopituitarism are similar to those of TBI, it is important for clinicians to be aware of this clinical problem. Moreover, we will address questions such as when to screen and who should be screened, along with a discussion of current management of pituitary dysfunction in patients with TBI.
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Affiliation(s)
- Sreedevi Guttikonda
- a Department of Endocrinology and Metabolism, University of Texas Medical Branch, Galveston, TX, USA
| | - Sara Ahmadi
- a Department of Endocrinology and Metabolism, University of Texas Medical Branch, Galveston, TX, USA
| | - Randall J Urban
- a Department of Endocrinology and Metabolism, University of Texas Medical Branch, Galveston, TX, USA
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21
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Effects of growth hormone therapy on bone mass, metabolic balance, and well-being in young adult survivors of childhood acute lymphoblastic leukemia. J Pediatr Hematol Oncol 2011; 33:e231-8. [PMID: 21792029 DOI: 10.1097/mph.0b013e31821bbe7a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Growth hormone deficiency (GHD), mostly after cranial radiotherapy (CRT), may lead to several negative effects. Young adult survivors of acute lymphoblastic leukemia (ALL) could benefit from GH therapy in different ways. Twenty ALL survivors (17.1 ± 4.3 y after diagnosis) with low bone mineral densities and/or low insulin-like growth factor-1 were included. Two of the 3 patients who only received chemotherapy had GHD. Of the 20 patients, 17 started with GH therapy and 14 completed the 2-year study period. At several time points, bone mineral density (BMD) was measured. Psychological functioning was assessed. At the start of the study, standard deviation scores of height, insulin-like growth factor-1, lumbar spine, and femoral neck BMD were all below -1. After 2 years of GH therapy, total body BMD and lean mass were significantly higher (P < 0.01 and P < 0.001, respectively), whereas the percentage fat was significantly lower (P < 0.02). Several psychological measures improved significantly after 2 years. In conclusion, GH therapy during 2 years in young adult survivors of childhood ALL did have a number of benefits, such as improvement of total body bone density and body composition. Results also suggest improvement of psychological well being. Furthermore, it also became clear that patients after chemotherapy alone should be tested for GHD.
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22
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Rossini A, Lanzi R, Losa M, Sirtori M, Gatti E, Madaschi S, Molinari C, Villa I, Scavini M, Rubinacci A. Predictors of bone responsiveness to growth hormone (GH) replacement in adult GH-deficient patients. Calcif Tissue Int 2011; 88:304-13. [PMID: 21253713 DOI: 10.1007/s00223-010-9459-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2010] [Accepted: 12/15/2010] [Indexed: 11/25/2022]
Abstract
Growth hormone (GH) replacement in adulthood results in variable bone responses as a function of the gonadic hormonal milieu. We performed a retrospective analysis of a large cohort of adult males and females with confirmed GH deficiency (GHD) prior to treatment and during 3 years of replacement therapy. Potential confounders and effect modifiers were taken into account. Sixty-four adult patients with GHD (20 females and 44 males; mean age 34 years, range 18-64) were included in the analysis. GH replacement induced a different effect on bone in males compared to females. Bone mineral content increased in males and decreased in females at the lumbar spine, total femur, and femoral neck; bone mineral density showed a similar trend at the lumbar spine and femoral neck. There was no significant gender difference in bone area at any measured bone site. In both sexes we observed a similar trend for serum markers of bone remodeling. Sex predicted bone outcome on multivariate analysis, as did age, onset of GHD (childhood/adulthood), pretreatment bone mass, baseline body mass index (BMI), and BMI change during GH replacement. Serum IGF-I levels during treatment did not show any relationship with bone outcome at any measured site. This study confirms that bone responsiveness to GH replacement in adult GHD varies as a function of sex even after controlling for potential confounders and highlights the importance of other cofactors that may affect the interaction between GH replacement therapy and bone remodeling.
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Affiliation(s)
- Alessandro Rossini
- Endocrinology Unit, San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
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Cook DM, Yuen KCJ, Biller BMK, Kemp SF, Vance ML. American Association of Clinical Endocrinologists medical guidelines for clinical practice for growth hormone use in growth hormone-deficient adults and transition patients - 2009 update. Endocr Pract 2010; 15 Suppl 2:1-29. [PMID: 20228036 DOI: 10.4158/ep.15.s2.1] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mussa A, Repici M, Fiore L, Tuli G, Porta F, Matarazzo P. Bone quantitative ultrasound in congenital and acquired childhood multiple pituitary failure. ULTRASOUND IN MEDICINE & BIOLOGY 2010; 36:726-732. [PMID: 20381948 DOI: 10.1016/j.ultrasmedbio.2010.02.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Revised: 02/23/2010] [Accepted: 02/28/2010] [Indexed: 05/29/2023]
Abstract
The aim of the present study is to investigate bone status by phalangeal quantitative ultrasound (QUS) in a cohort of hypopituitaric pediatric subjects, and to relate measurement outcome to their clinical, laboratory, and therapeutical features. Forty-three hypopituitaric children were submitted to bone measurement by QUS with DBM sonic bone profiler 1200 (IGEA, Carpi, Modena, Italy). This method measures bone transmission time (BTT) and amplitude-dependent speed of sound (AD-SoS) of an ultrasound beam crossing the first four phalanges of the hand and provides respective standard deviation scores (SDS). These two parameters provide information on bone mineral density and structure. Clinical, laboratory and therapeutical features were considered to look for correlations. Overall BTT and AD-SoS SDS were significantly reduced (-0.87 +/- 1.52, p = 0.001, and -0.97 +/- 1.56, p = 0.001) as well as respective height- or bone age-corrected SDS. Bone condition proved significantly worse in subjects with higher number of hormonal deficiencies (p = 0.001 for both parameters) and in those with acquired hypopituitarism (p = 0.020 for BTT and p = 0.010 for AD-SoS) than in those with congenital forms. In participants under growth hormone (GH) treatment, regression analysis revealed that QUS measurement outcome was significantly associated with age at GH therapy start (p = 0.001), time interval before therapy initiation (p = 0.011), treatment duration (p = 0.007) and administered dosage (p = 0.036). Our data show that childhood hypopituitarism is associated with bone morbidity, detectable at QUS measurement independently of potential confounders as stature and bone age. Skeletal impairment is related to acquired hypopituitarism, number of hormonal deficiencies and duration of disease before replacement therapies, whereas GH treatment duration and doses are associated with a better skeletal condition. Phalangeal QUS measurements of BTT and AD-SoS promise as a reliable method for obtaining quantitative measurements of bone disease in individuals with hypopituitarism but more studies are needed for verification.
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Affiliation(s)
- Alessandro Mussa
- Department of Pediatrics, University of Torino, Regina Margherita Children Hospital, Torino, Italy.
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Abstract
PURPOSE OF REVIEW Description of recent progress in our understanding of growth hormone (GH) effects on bone. RECENT FINDINGS Growth hormone deficiency is associated with low bone mass in children and adults, in addition to its well established impact on growth. Although GH and insulin-like growth factor I have direct skeletal actions, it is also possible that disordered parathyroid hormone secretion or effect may mediate some of the deleterious consequences of GH deficiency on bone. The benefits of GH replacement on bone mineral density have been demonstrated in many studies, but it remains unclear whether these are consistent across patient subgroups. The impact of GH replacement on fracture risk has not been definitively established. The positive effects of GH administration on growth are well established in childhood-onset growth hormone deficiency, as well as in several other pediatric conditions. Data on investigational uses of GH are also presented. SUMMARY GH may have a relevant role in bone physiology and several disease states in addition to growth hormone deficiency. Although the salutary effects of GH replacement on bone growth and bone density are well characterized, additional studies are required to examine the impact of GH replacement on fracture risk as well as potential benefits in osteoporosis.
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Affiliation(s)
- Nicholas A Tritos
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts 02114, USA.
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Abstract
It is now accepted that adults with severe GH deficiency (GHD) demonstrate impaired physical and psychological well-being and may benefit from replacement with recombinant human GH. Post-marketing surveillance surveys, such as the Pfizer International Metabolic Database (KIMS), were initially set-up to provide safety data on long-term treatment but have the added benefit of providing ongoing observational data on the effect of GH replacement on body composition, lipid and glucose status, hypertension, bone density and quality of life. These data demonstrate that although GHD has clinical impact at all ages, the individual consequences of this condition may take on greater significance at different stages in life. At all ages, accurate, safe diagnosis and appropriate GH dosing are necessary to provide the individual with the best possible outcome.
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Affiliation(s)
- Julia D J Thomas
- Department of Endocrinology, St Bartholomew's Hospital, Queen Mary University of London, UK
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Laursen T, Jørgensen JOL, Christiansen JS. The management of adult growth hormone deficiency syndrome. Expert Opin Pharmacother 2008; 9:2435-50. [DOI: 10.1517/14656566.9.14.2435] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Giustina A, Mazziotti G, Canalis E. Growth hormone, insulin-like growth factors, and the skeleton. Endocr Rev 2008; 29:535-59. [PMID: 18436706 PMCID: PMC2726838 DOI: 10.1210/er.2007-0036] [Citation(s) in RCA: 548] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Accepted: 04/03/2008] [Indexed: 12/18/2022]
Abstract
GH and IGF-I are important regulators of bone homeostasis and are central to the achievement of normal longitudinal bone growth and bone mass. Although GH may act directly on skeletal cells, most of its effects are mediated by IGF-I, which is present in the systemic circulation and is synthesized by peripheral tissues. The availability of IGF-I is regulated by IGF binding proteins. IGF-I enhances the differentiated function of the osteoblast and bone formation. Adult GH deficiency causes low bone turnover osteoporosis with high risk of vertebral and nonvertebral fractures, and the low bone mass can be partially reversed by GH replacement. Acromegaly is characterized by high bone turnover, which can lead to bone loss and vertebral fractures, particularly in patients with coexistent hypogonadism. GH and IGF-I secretion are decreased in aging individuals, and abnormalities in the GH/IGF-I axis play a role in the pathogenesis of the osteoporosis of anorexia nervosa and after glucocorticoid exposure.
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Affiliation(s)
- Andrea Giustina
- Department of Medical and Surgical Sciences, University of Brescia, Brescia, Italy.
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Rota F, Savanelli MC, Tauchmanova L, Savastano S, Lombardi G, Colao A, Di Somma C. Bone density and turnover in young adult patients with growth hormone deficiency after 2-year growth hormone replacement according with gender. J Endocrinol Invest 2008; 31:94-102. [PMID: 18362499 DOI: 10.1007/bf03345574] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
GH deficiency (GHD) in adults is accompanied by reduced bone mass that may revert only after 2 yr of GH replacement. However, it is unclear whether the gender may modify bone responsiveness to GH replacement in adults. In this study we have evaluated whether bone mineral density (BMD) and turnover improve after GH replacement according to patients' gender. BMD at lumbar spine (LS) and femoral neck (FN), serum osteocalcin (OC), and urinary cross-linked N-telopeptides of type I collagen (Ntx) were assessed in 64 hypopituitaric patients (35 men, 30-50 yr) before and 2 yr after the beginning of GH replacement. Values of IGF-I and BMD at LS and at FN were expressed as Zscores. At study entry, IGF-I and BMD resulted similar among men and women with GHD. During GH replacement, IGF-I levels increased in both men and women without any difference in the percentage of IGF-I increase between the genders (p=0.47). In women receiving estrogen replacement, however, the percentage of IGF-I increase (p<0.05), and the Z IGF-I score (p<0.001) were significant lower than estrogen untreated women, although IGF-I levels were similar in the 2 groups (p=0.53). The GH dose adjusted for body weight required to restore normal age- and sex- matched IGF-I levels was lower in men than in women (p<0.001), and was higher in women receiving than in those not receiving estrogen replacement (p<0.05). In contrast, hypogonadal men treated with testosterone and eugonadal men received a similar GH dose (p=0.97). Also OC, Ntx levels, lumbar and femoral BMD improved (p<0.001) in all patients. Nevertheless, a greater increase in lumbar BMD increase was observed in men than in women (8.0+/-2.1 vs 2.6+/-0.4%; p<0.05). No significant difference was revealed in bone parameters in women treated or untreated with estrogen replacement and in men treated or not with testosterone replacement for concomitant hypogonadism. At the multiple correlation analysis, gender was a stronger predictor for the required GH dose than the age (p<0.001 and p=0.02, respectively). In conclusion, a 2-yr GH replacement normalizes IGF-I levels, increases bone mass and improves bone turnover both in men and in women with GHD without any difference between the 2 groups, provided that the dose of GH was modulated on the basis of IGF-I levels. Women receiving oral estrogens should receive a GH dose approximately doubled, as compared to men and women not receiving oral estrogens, to achieve similar effects on bone density and turnover. In particular, GH replacement dose, to be successful on bone mass and turnover, depends on gender in hypopituitary patients aged below 50 yr.
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Affiliation(s)
- F Rota
- Department of Molecular and Clinical Endocrinology, Federico II University of Naples, 80131 Naples, Italy
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Mazziotti G, Bianchi A, Cimino V, Bonadonna S, Martini P, Fusco A, De Marinis L, Giustina A. Effect of gonadal status on bone mineral density and radiological spinal deformities in adult patients with growth hormone deficiency. Pituitary 2008; 11:55-61. [PMID: 17965964 DOI: 10.1007/s11102-007-0069-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Growth hormone deficiency (GHD) in adult patients is associated with marked decrease in bone turnover, low bone mass and high risk of clinical and subclinical fractures. We investigated whether the prevalence of spinal deformities in adults with GHD was related to the gonadal status of patients. A total of 89 adult hypopituitary patients with severe GHD were evaluated for bone mineral density (BMD) and vertebral deformities (quantitative morphometric analysis). At the study entry, 54 patients were eugonadic whereas 35 patients were hypogonadic without replacement treatment. Radiological spinal deformities were found in 55 patients (61.8%) with higher prevalence in untreated (56 cases) versus treated (33 cases) GHD patients. Eugonadic and hypogonadic patients showed no significant difference in spinal deformities although T-score was significantly lower in hypogonadic as compared with eugonadic patients. Gonadal function was not correlated with the occurrence of spinal deformities which was instead inversely correlated with rhGH treatment. In conclusion, gonadal status may influence BMD in adult patients with GHD without affecting the risk to develop vertebral deformities. Conversely, rhGH replacement treatment seems to be the only factor influencing the risk to develop vertebral deformities in adult GHD patients.
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Affiliation(s)
- Gherardo Mazziotti
- Endocrine Section, Department of Internal Medicine, University of Brescia, 2 Medicina-Spedali Civili, Brescia 25125, Italy.
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Nilsson AG, Svensson J, Johannsson G. Management of growth hormone deficiency in adults. Growth Horm IGF Res 2007; 17:441-462. [PMID: 17629530 DOI: 10.1016/j.ghir.2007.05.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2007] [Revised: 05/21/2007] [Accepted: 05/21/2007] [Indexed: 11/25/2022]
Abstract
Growth hormone (GH) deficiency in adults is a recognised clinical entity. There is still, however, an ongoing debate of the clinical need and the importance of replacing GH in adults with severe GH deficiency. This review will focus on the overall management of adults with GH deficiency and highlight published data on dose management and treatment goals for various age groups. The efficacy data on quality of life and well-being is discussed and available and growing experience on long-term effects of GH replacement in adults and safety in terms of diabetes mellitus, pituitary tumour recurrence/regrowth and malignancy risk will be reviewed.
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Affiliation(s)
- Anna G Nilsson
- Department of Endocrinology, Sahlgrenska University Hospital, SE-413 45 Gothenburg, Sweden
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Kosowicz J, El Ali Z, Ziemnicka K, Sowinski J. Abnormalities in bone mineral density distribution and bone scintigraphy in patients with childhood onset hypopituitarism. J Clin Densitom 2007; 10:332-9. [PMID: 17470407 DOI: 10.1016/j.jocd.2007.03.098] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2007] [Revised: 03/01/2007] [Accepted: 03/09/2007] [Indexed: 11/29/2022]
Abstract
The aim of our study was to evaluate the effects of long-life severe growth hormone deficiency on bone mineral density (BMD) and bone scintigraphy in adult patients with childhood onset (CO) hypopituitarism never treated with growth hormone. Our studies included 22 adult patients with CO hypopituitarism never treated with growth hormone (13 males and 9 females, aged 25-66 yr). The patients received replacement therapy with thyroxine, sex steroid hormones, and patients with secondary adrenocortical deficiency, hydrocortisone, but none of the patients had ever received GH treatment. In 22 patients, the total body with regional distribution of BMD, the lumbar spine L2-L4, and radial (33% site) BMD were determined by dual energy X-ray absorptiometry (DXA). In addition, 12 patients had the femoral neck BMD examined. In 10 cases, bone scintigraphy using 99-technetium labeled methylene diphosphonate was performed. Our studies revealed abnormalities, not yet described, in the regional distribution of BMD and bone scintigraphy in adults with CO hypopituitarism never treated with GH. In all patients, the results obtained from the total body showed definite disproportion in the regional distribution of BMD with a significantly advanced bone mineral deficit in the legs and a moderate deficit in the arms and total body. Local BMD measured at the radial (33% site) and lumbar spine L2-L4 revealed also a more pronounced bone mineral deficit in the cortical bone (33% distal radius) than in the trabecular bone (spine L2-L4). Bone scintigraphy showed a decrease in tracer accumulation in the shafts of the long bones but normal uptake in the spine, ribs, sternum, skull, and periarticular areas, indicating suppressed skeletal metabolism of cortical bone. Our studies indicate that long-life growth hormone deficiency leads to deficient and abnormal distribution of bone mineralization, a more pronounced deficit of BMD at the cortical bone, mainly expressed in the shafts of the long bones of the legs and arms, and moderately reduced BMD at the trabecular bone. Bone scans displaying low diphosphonates uptake in the shafts of the long bones point to greatly suppressed skeletal metabolism of the cortical bone in the patients with CO hypopituitarism never treated with GH.
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Affiliation(s)
- Jerzy Kosowicz
- Department of Endocrinology and Metabolism, Poznan University of Medical Sciences, Poznan, Poland.
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Götherström G, Bengtsson BA, Bosaeus I, Johannsson G, Svensson J. Ten-year GH replacement increases bone mineral density in hypopituitary patients with adult onset GH deficiency. Eur J Endocrinol 2007; 156:55-64. [PMID: 17218726 DOI: 10.1530/eje.1.02317] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED There are few studies that have determined the effects of long-term GH replacement on bone mineral density (BMD) in GH-deficient (GHD) adults. In this study, the effects of 10 years of GH replacement on BMD were assessed in 87 GHD adults using dual energy X-ray absorptiometry (DEXA). The results show that GH replacement induced a sustained increase in BMD at all the skeletal sites measured. INTRODUCTION Little is known of the effect of more than 5 years of GH replacement therapy on bone metabolism in GHD adults. PATIENTS AND METHODS In this prospective, open-label, single-center study, which included 87 consecutive adults (52 men and 35 women; mean age of 44.1 (range 22-74) years) with adulthood onset GHD, the effect of 10 years of GH replacement on BMD was determined. RESULTS The mean initial dose of GH was 0.98 mg/day. The dose was gradually lowered and after 10 years the mean dose was 0.47 mg/day. The mean insulin-like growth factor-I (IGF-I) SDS increased from 1.81 at baseline to 1.29 at study end. The GH replacement induced a sustained increase in total, lumbar (L2-L4) and femur neck BMD, and bone mineral content (BMC) as measured by DEXA. The treatment response in IGF-I SDS was more marked in men, whereas women had a more marked increase in the total body BMC and the total body z-score. There was a tendency for women on estrogen treatment to have a larger increase in bone mass and density compared with women without estrogen replacement. CONCLUSIONS Ten years of GH replacement in hypopituitary adults induced a sustained, and in some variables even a progressive, increase in bone mass and bone density. The study results also suggest that adequate estrogen replacement is needed in order to have an optimal response in BMD in GHD women.
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Affiliation(s)
- G Götherström
- Research Centre for Endocrinology and Metabolism, Sahlgrenska University Hospital, Gröna Stråket 8, SE-413 45 Göteborg, Sweden.
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Hitz MF, Jensen JEB, Eskildsen PC. Bone mineral density in patients with growth hormone deficiency: does a gender difference exist? Clin Endocrinol (Oxf) 2006; 65:783-91. [PMID: 17121531 DOI: 10.1111/j.1365-2265.2006.02667.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The aim of the study was to clarify whether a gender difference exists with respect to bone mineral density (BMD) and bone mineral content (BMC) in adult patients with growth hormone deficiency (GHD). DESIGN A case-control design. METHODS Blood sampling for measurements of calcium, phosphate, creatinine, PTH, vitamin D, IGF-1, markers of bone formation and bone resorption, and dual energy X-ray absorptiometry (DEXA), to determine BMD and BMC of the lumbar spine, hip, distal arm and total body, were performed in 34 patients with GHD (19 females) and 34 sex-, age- and weight-matched healthy control subjects. The patients were well substituted on all pituitary axes, apart from GH. RESULTS GH-deficient males had significantly lower BMD in the lumbar spine (P = 0.02), hip (P = 0.01) and total body (P = 0.003) than healthy males while GH-deficient females compared to healthy females had identical BMD values at all regions. This gender difference was even more obvious when BMD values were expressed as Z-scores or as three-dimensional BMD of the total body. The bone formation and bone resorption markers, as well as calcium and vitamin D, were all at the same levels in GH-deficient and healthy males, indicating identical bone turnover. The GH-deficient females, however, had significantly lower levels of bone markers compared to healthy females, indicating a reduced bone turnover. Oestrogen substitution of the GH-deficient females could explain this difference. CONCLUSIONS Compared to healthy control subjects GH-deficient males had, in contrast to GH-deficient females, significantly reduced BMD and BMC. This obvious gender difference seems to be caused by the oestrogen substitution given to the females, compensating for the lack of GH, an effect testosterone does not seem to possess.
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Colson A, Brooke AM, Walker D, Besser GM, Chew SL, Grossman AB, Jenkins PJ, Drake WM, Monson JP. Growth hormone deficiency and replacement in patients with treated Cushing's Disease, prolactinomas and non-functioning pituitary adenomas: effects on body composition, glucose metabolism, lipid status and bone mineral density. HORMONE RESEARCH 2006; 66:257-67. [PMID: 16914933 DOI: 10.1159/000095168] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2006] [Accepted: 06/23/2006] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS This study was designed to determine whether previous Cushing's disease (CD) or prolactinoma (PRL) could exert adverse effects additional to those of growth hormone (GH) deficiency as a consequence of variable degrees of prior hypogonadism or hypercatabolism. We report the effects of 5 years GH treatment in 124 GH deficiency adults; 42 patients with non-functioning pituitary adenomas (NFPA), 43 with treated PRL and 39 with treated CD. METHODS Fasting plasma glucose, HbA(1c), lipoprotein profile, anthropometry and bone mineral density (BMD) were measured at baseline, 6 months and annually up to 5 years. RESULTS Mean body mass index remained unchanged in the PRL group and tended to increase in the NFPA group. In contrast, body mass index decreased in the CD group. Decreases in waist and waist/hip ratio were seen in all groups at 6 months. Decreases in total cholesterol and low-density lipoprotein cholesterol were seen in all groups and remained sustained at 5 years. Plasma glucose and HbA(1c) increased at 6 months. Subsequently, plasma glucose returned to baseline values at 5 years; in contrast, HbA(1c )remained unchanged at the end of the study. Baseline lumbar spine and hip BMD were lower in the PRL and CD groups than in the NFPA group, decreased over 1 year in all groups and subsequently increased by 2 years in NFPA with a subsequent increase in lumbar spine BMD in PRL and CD groups delayed to 3-5 years. CONCLUSIONS Baseline characteristics and response to GH replacement are qualitatively similar in NFPA, PRL and CD patients. Because improvements in BMD occur later in PRL and CD patients, an extended trial of GH therapy may be indicated in those patients who were commenced on GH therapy as an additional treatment for reduced BMD.
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Affiliation(s)
- A Colson
- Centre for Clinical Endocrinology, St. Bartholomew's Hospital, QMUL, London, UK
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36
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Molitch ME, Clemmons DR, Malozowski S, Merriam GR, Shalet SM, Vance ML, Stephens PA. Evaluation and treatment of adult growth hormone deficiency: an Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab 2006; 91:1621-34. [PMID: 16636129 DOI: 10.1210/jc.2005-2227] [Citation(s) in RCA: 328] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The objective is to provide guidelines for the evaluation and treatment of adults with GH deficiency (GHD). PARTICIPANTS The chair of the Task Force was selected by the Clinical Guidelines Subcommittee of The Endocrine Society (TES). The chair selected five other endocrinologists and a medical writer, who were approved by the Council. One closed meeting of the group was held. There was no corporate funding, and members of the group received no remuneration. EVIDENCE Only fully published, peer-reviewed literature was reviewed. The Grades of Evidence used are outlined in the Appendix. CONSENSUS PROCESS Consensus was achieved through one group meeting and e-mailing of drafts that were written by the group with grammatical/style help from the medical writer. Drafts were reviewed successively by the Clinical Guidelines Subcommittee, the Clinical Affairs Committee, and TES Council, and a version was placed on the TES web site for comments. At each level, the writing group incorporated needed changes. CONCLUSIONS GHD can persist from childhood or be newly acquired. Confirmation through stimulation testing is usually required unless there is a proven genetic/structural lesion persistent from childhood. GH therapy offers benefits in body composition, exercise capacity, skeletal integrity, and quality of life measures and is most likely to benefit those patients who have more severe GHD. The risks of GH treatment are low. GH dosing regimens should be individualized. The final decision to treat adults with GHD requires thoughtful clinical judgment with a careful evaluation of the benefits and risks specific to the individual.
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Affiliation(s)
- Mark E Molitch
- Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
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37
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Abstract
Growth hormone deficiency (GHD) in adults may be of either adult or childhood onset and may occur as isolated GHD or as multiple hormone deficiencies. Adult-onset GHD (AoGHD) usually results from damage to the pituitary gland or hypothalamus. GH is frequently undetectable in normal subjects and thus GHD cannot be distinguished from the normal state using a single random GH measurement. In general, a stimulation test is required to recognize GHD. Insulin tolerance test (ITT) has been considered the gold standard by the most important scientific societies, although alternative tests, in particular GHRH plus arginine have been proposed as valuable alternative to ITT. The clinical syndrome associated with AoGHD is characterized by a wide array of symptoms and important chronic complications, such as cardiovascular complications, which may be responsible for an increased mortality. The rationale for GH replacement in adults GHD patients is justified by the beneficial effects on some clinical end-points, such as quality of life (QoL) and cardiovascular risk factors, whereas the effects on mortality risk are still controversial. Over the recent years, guidelines on the use of rhGH as a substitution treatment in adult hypopituitarism have been issued by international (Growth hormone research society-GRS, Endocrine Society) and relevant national (National Institute of Clinical Excellence-UK, NICE) institutions. The aim of the paper is to review and discuss these guidelines.
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Affiliation(s)
- M Doga
- Endocrine Section, Department of Medical and Surgical Sciences, University of Brescia, Brescia, Italy
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Veldhuis JD, Roemmich JN, Richmond EJ, Rogol AD, Lovejoy JC, Sheffield-Moore M, Mauras N, Bowers CY. Endocrine control of body composition in infancy, childhood, and puberty. Endocr Rev 2005; 26:114-46. [PMID: 15689575 DOI: 10.1210/er.2003-0038] [Citation(s) in RCA: 279] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Body composition exhibits marked variations across the early human lifetime. The precise physiological mechanisms that drive such developmental adaptations are difficult to establish. This clinical challenge reflects an array of potentially confounding factors, such as marked intersubject differences in tissue compartments; the incremental nature of longitudinal intrasubject variations in body composition; technical limitations in quantitating the unobserved mass of mineral, fat, water, and muscle ad seriatim; and the multifold contributions of genetic, dietary, environmental, hormonal, nutritional, and behavioral signals to physical and sexual maturation. From an endocrine perspective (reviewed here), gonadal sex steroids and GH/IGF-I constitute prime determinants of evolving body composition. The present critical review examines hormonal regulation of body composition in infancy, childhood, and puberty.
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Affiliation(s)
- Johannes D Veldhuis
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Mayo Medical and Graduate Schools of Medicine, General Clinical Research Center, Mayo Clinic, Rochester, Minnesota 55905, USA.
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39
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Abstract
Growth hormone (GH) has a major role in the maintenance of bone mass in adults by regulating bone remodeling through a complex interaction of circulating GH, insulin-like growth factors (IGFs), IGF binding protein (IGFBPs), and locally produced IGFs and IGFBPs, acting in an autocrine and paracrine way. In vitro data has greatly increased our understanding of GH and IGFs effects and regulation in bone cells under controlled conditions, and especially the molecular pathways involved. However, the GH-and type I IGF-receptor are present in many tissues and various systemic factors may potentially regulate local expression of IGFs and IGFBPs in the intact organism. The use of genetically altered mice has changed this and had a major impact on defining the role of IGFs in skeletal homeostasis, and especially the role of systemic IGF-I in the development and maintenance of the adult skeleton. The focus of this review is to describe recent work on the effect of GH/IGF on remodeling in the adult skeleton emphasizing on data obtained in patient populations (i.e. acromegaly, GH deficiency, postmenopausal osteoporosis) and experimental models (i.e. animals with genetically altered expression of different GH and IGF family members) characterized by different systemic levels of these proteins. The role of IGF-I as a coupling agent between resorption and bone formation through effects on osteoprotegerin (OPG) and receptor activator of NFkappaB ligand (RANKL) are also discussed.
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Affiliation(s)
- Thor Ueland
- Section of Endocrinology, Research Institute for Internal Medicine, Rikshospitalet University Hospital, Sognsvannsveien 20, room D1.2017, 0027 Oslo, Norway.
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40
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Biermasz NR, Hamdy NAT, Pereira AM, Romijn JA, Roelfsema F. Long-term skeletal effects of recombinant human growth hormone (rhGH) alone and rhGH combined with alendronate in GH-deficient adults: a seven-year follow-up study. Clin Endocrinol (Oxf) 2004; 60:568-75. [PMID: 15104559 DOI: 10.1111/j.1365-2265.2004.02021.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND GH-deficient patients respond to recombinant human GH (rhGH) replacement therapy by increasing bone mineral density (BMD) at a rate of about 1% a year for at least 4 years. Predictive factors for a beneficial effect on bone are a low bone mass at baseline and gender. Whether the beneficial skeletal effects of GH are sustained in the long term remains to be established. It is also not known whether osteoporotic GH-deficient patients may require additional antiresorptive drugs and whether this treatment would be effective concomitantly with GH replacement. DESIGN We performed a long-term, controlled study in 30 GH-deficient adults: 15 with osteoporosis and 15 control subjects with low bone mass. All patients were treated with rhGH for at least 4 years; thereafter, 3 years of additional alendronate treatment was given to patients with osteoporosis, while controls continued on GH therapy alone. The GH dose was individualized to maintain an IGF-I within the normal reference range for the duration of the study, and was equal between genders. RESULTS At the end of 4 years of rhGH replacement therapy, a significant increase in mean lumbar spine BMD was observed in both the osteoporosis group (3.6%) and the control group (7.0%), with no significant difference between groups. Males had a larger increase in BMD than females (P = 0.032). After 4 or 5 years of GH treatment patients with persisting osteoporosis received additional alendronate (10 mg/day) for 3 years. Lumbar spine BMD increased by 8.7% after 3 years (P = 0.001) vs 1.5% (P = NS) in the control group continuing on rhGH replacement alone. The alendronate effect was gender independent (P = 0.59). Mean bone area of the lumbar spine did not change in both groups for the duration of the study. Femoral neck BMD increased significantly in the osteoporosis group (3.5%) and was unchanged in the control group. Five osteoporotic GH-deficient patients had a total of 12 vertebral fractures before start of alendronate. Only one of these patients developed two new vertebral fractures within the first year of treatment with alendronate. CONCLUSION We observed a significant increase in lumbar spine BMD in the first 4 years of rhGH replacement. The effect of GH on bone was gender dependent, but not BMD dependent. After more than 4 years of GH replacement, BMD seemed to reach a plateau, at least as measured in the 3-4 years thereafter, as no significant increase was present in patients treated with GH alone. By contrast, alendronate rapidly augmented BMD and this effect was maintained for at least 3 years. These increases in BMD were associated with a low incidence of (vertebral) fractures. The long-term use of GH does not preclude a beneficial effect of an additional antiresorptive agent in GH-deficient patients with osteoporosis.
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Affiliation(s)
- Nienke R Biermasz
- Department of Endocrinology and Metabolism, Leiden University Medical Centre, Leiden, The Netherlands.
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White HD, Ahmad AM, Syed AA, Clewes A, Peter R, Vora JP, Fraser WD. Gender variation in PTH sensitivity and rhythmicity following growth hormone replacement in adult growth hormone-deficient patients. Clin Endocrinol (Oxf) 2004; 60:516-26. [PMID: 15049968 DOI: 10.1111/j.1365-2265.2004.02010.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Adult GH deficiency (AGHD) is associated with osteoporosis and reduced bone turnover; factors improved by GH replacement (GHR), with men gaining greater benefit than women. Reduction in sensitivity of bone and kidney to the effects of PTH may underlie AGHD changes in bone turnover. We determined the gender difference in PTH target-organ sensitivity following GHR in AGHD patients. DESIGN, PATIENTS AND MEASUREMENTS Twenty AGHD patients (10 men) were admitted to hospital before and after GHR initiation. Half-hourly blood samples were collected for PTH, calcium, nephrogenous cyclic AMP (NcAMP, marker of PTH activity), type-I collagen C-telopeptide (CTX, bone resorption marker) and procollagen type-I amino-terminal propeptide (PINP, bone formation marker). RESULTS The 24-h mean PTH concentration decreased in both genders (P < 0.001), with maximal changes seen 6 and 12 months following GHR in men and women, respectively. Increases in 24-h mean NcAMP (P < 0.05), calcium (P < 0.001) and bone turnover markers (P < 0.001) occurred in both genders following GHR, with maximal changes at 1 month in men, but at 3 months for NcAMP, calcium and CTX and 12 months for PINP in women. Maximal NcAMP increase was higher in men (P = 0.009). CONCLUSIONS Following GHR, PTH target-organ sensitivity increased in both genders, demonstrated by simultaneous reduction in PTH concentration and increase in NcAMP, calcium and bone turnover. In women, improvement in renal PTH sensitivity was delayed and reduced, and changes in bone turnover were delayed, with increase in bone resorption preceding bone formation. Both factors may contribute to the reduced bone mineral density (BMD) response to GHR observed in women.
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Affiliation(s)
- H D White
- Department of Diabetes and Endocrinology, Royal Liverpool Hospital, Liverpool, UK.
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Leal Cerro A. Long-Term Challenges in Growth Hormone Treatment. HORMONE RESEARCH 2004; 62 Suppl 4:23-30. [PMID: 15591763 DOI: 10.1159/000080905] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Growth hormone deficiency (GHD) is defined biochemically as a response to hypoglycaemia with a peak GH concentration of less than 5 microg/l. The 'GHD syndrome' is a range of psychological and physical symptoms that are associated with GHD, which include increased central adiposity, decreased bone mineral density, abnormal lipid profiles, decreased cardiovascular performance, reduced lean body mass (LBM), social isolation, depressed mood and increased anxiety. Importantly, the combination of physical and psychological problems can often result in a reduced quality of life. A number of trials have shown that GH replacement therapy can lead to a substantial improvement in GHD associated symptoms. Following up to 12 months of treatment with GH, LBM increased, left ventricular systolic function improved and the mean volume of adipose tissue fell. After only 4 months of treatment, a rise in exercise capacity was recorded, and after 2 years' treatment, isokinetic and isometric muscle strength had normalized in proximal muscle groups. Feelings of well-being and vitality also improved significantly. However, studies on the effects of treatment on insulin sensitivity in GH-deficient patients have had conflicting results. In this paper, we will discuss the long-term consequences of GHD and the effects of GH replacement therapy.
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Affiliation(s)
- A Leal Cerro
- Department of Endocrinology, Hospital Universitario Virgen del Rocio, Hospital General, Sevilla, Spain.
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White HD, Ahmad AM, Guzder R, Wallace AM, Fraser WD, Vora JP. Gender variation in leptin circadian rhythm and pulsatility in adult growth hormone deficiency: effects of growth hormone replacement. Clin Endocrinol (Oxf) 2003; 58:482-8. [PMID: 12641632 DOI: 10.1046/j.1365-2265.2003.01742.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVES Adult growth hormone deficiency (AGHD) is characterized by obesity and associated with increased leptin concentration and decreased leptin pulsatility. Growth hormone replacement (GHR) results in a decrease in leptin concentration and increase in leptin pulsatility, followed by reduction in body fat mass (BFM). In both health and AGHD, women exhibit relatively higher leptin concentrations compared to men. The effect of gender on leptin rhythm and pulse parameters in AGHD is yet to be defined and the gender difference in the response of leptin secretory pattern to GHR has not been determined. Therefore the aim of this study was to evaluate the effect of gender on circadian and pulse parameters of leptin secretion in AGHD, and examine the gender variation in response of these parameters to GHR. STUDY DESIGN A prospective, open treatment design study to determine the effect of gender on leptin rhythm and pulse parameters in untreated and treated AGHD. GH was commenced at a daily dose of 0.5 IU, and titrated up by increments of 0.25 IU at 2-weekly intervals to achieve and maintain IGF-I SDs between the median and upper end of the age-related reference range. PATIENTS Twelve patients (six men, six women) with severe AGHD following pituitary surgery, defined as peak GH response < 9 mU/l to provocative testing were studied. All patients required additional pituitary replacement hormones following pituitary surgery and were on optimal doses at recruitment. MEASUREMENTS Plasma leptin was measured at half-hourly intervals for 24 h, before and 1 month after initiation of GHR. Cosinor analysis was used to determine the circadian rhythm parameters: MESOR (rhythm-adjusted mean), acrophase and amplitude; and ULTRA algorithm used for pulse analysis. Body composition was measured using bioelectrical impedance. RESULTS BFM was higher in women than men at both visits (P < 0.05), but there was no significant change in BFM in either gender following 1 month of GHR. Women had a higher mean 24-h leptin concentration, MESOR, circadian amplitude and pulse amplitude, both before and after GHR (P < 0.05). Following treatment, mean leptin concentration and MESOR decreased significantly in both men and women (P < 0.05), with no significant difference in percentage change between the genders. Pulse frequency increased and duration decreased significantly after GHR in both groups, without any significant gender difference. IGF-I and IGF SDs were similar in both genders at baseline (P = 0.93). However, after 1 month GHR, the increase in both measurements was greater in men than women (P = 0.005) and men had significantly higher IGF-I and IGF SDs than women (P = 0.01). CONCLUSIONS As in healthy individuals, leptin levels were higher in women with AGHD than men, both prior to and after GHR. Decline in leptin concentrations and increase in leptin pulsatility following 1 month of GH treatment were similar in both genders. Changes in leptin secretory parameters appeared to occur without any significant decrease in BFM, suggesting a regulatory role for GH. Additionally, the action of GH on leptin secretory pattern does not appear to be mediated by IGF-I. Our data suggest that changes in leptin concentration and rhythm parameters following GHR are independent of gender.
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Affiliation(s)
- H D White
- Department of Diabetes, Royal Liverpool University Hospital, Liverpool, UK.
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Abstract
Adult growth hormone (GH) deficiency results mainly from pituitary or peri-pituitary disease and/or its treatment and is frequently accompanied by other anterior pituitary hormone deficiencies. GH deficiency (GHD) results in a number of psychological and physical symptoms and signs which in combination constitute the adult 'GHD syndrome'. The psychological symptoms include decreased energy levels, social isolation, and lack of positive well being, depressed mood and increase in anxiety. The physical symptoms and signs include abnormal body composition with reduced lean body mass, increased central adiposity, and decreased extracellular fluid volume, decreased bone mineral density with an increased risk of fracture, reduced muscle strength, reduced exercise capacity, increased LDL cholesterol and reduced insulin sensitivity. Hypopituitarism and GHD are associated with an increased standardised mortality ratio. The diagnosis of GHD is confirmed by the insulin tolerance test or alternative stimulation test in the presence of structural pituitary disease and/or additional pituitary hormone deficiencies. Replacement with synthetic growth hormone by once daily subcutaneous injection can reverse many of the symptoms and signs of growth hormone deficiency, but the long-term effects are yet to be established. Whether or not all patients with GHD should receive GH replacement remains a matter for debate: a selective approach to therapy based on psychological well being and quality of life has been adopted in many centres.
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Affiliation(s)
- Antonia M Brooke
- Department of Endocrinology, St. Bartholomew's and The Royal London, Queen Mary's School of Medicine and Dentistry, University of London, UK
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Lanes R, Gunczler P, Esaa S, Weisinger JR. The effect of short- and long-term growth hormone treatment on bone mineral density and bone metabolism of prepubertal children with idiopathic short stature: a 3-year study. Clin Endocrinol (Oxf) 2002; 57:725-30. [PMID: 12460321 DOI: 10.1046/j.1365-2265.2002.01614.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE We recently reported that children with idiopathic short stature (ISS) have decreased lumbar spine bone mineral density (BMD) that increases after 1 year of GH therapy. The aim of this study was to confirm these short-term results and to evaluate the effect of long-term GH therapy on the BMD of children with ISS. PATIENTS AND DESIGN We treated a group of 16 short, slow-growing but otherwise healthy non-GH-deficient prepubertal children (8 girls and 8 boys) with a chronological age of 9.5 +/- 0.9 years, a bone age of 8.1 +/- 1.2 years and a height of 124.3 +/- 6.3 cm (height-SDS of -2.1 +/- 0.6) with GH at a dose of 0.1 IU/kg/day for 3 consecutive years. MEASUREMENTS Height was determined at 3-month intervals and annual growth velocities were calculated. Bone ages and BMD were measured every 12 months by dual-energy X-ray absorptiometry, as were serum concentrations of the carboxy-terminal propeptide of type 1 collagen (PICP) and the carboxy-terminal cross-linked telopeptide of type 1 collagen (ICPT). RESULTS Growth velocity increased from 4.0 +/- 0.8 cm/year to 8.7 +/- 1.5 and 8.0 +/- 1.7 cm/year at 12 and 36 months of GH therapy, respectively, while height-SDS improved from -2.1 +/- 0.6 to -1.6 +/- 0.4 after 36 months of GH (P < 0.0001). Baseline lumbar spine BMD was decreased when compared to that of a control group of healthy children paired for gender, bone age and height (0.640 +/- 0.08 g/cm2vs. 0.730 +/- 0.08 g/cm2; P < 0.003). Lumbar spine BMD increased after 1 year of GH from 0.640 +/- 0.08 to 0.749 +/- 0.08 g/cm2 (P < 0.05), reaching levels similar to that of controls followed for 1 year without therapy (0.749 +/- 0.04 g/cm2vs. 0.760 +/- 0.08 g/cm2). During this period lumbar spine BMD increased 14.5% in the ISS subjects and 3.9% in the controls. Over the following 2 years of GH therapy the lumbar spine BMD of our ISS patients increased at a rate similar to that of the control population, so that after 3 years of consecutive GH therapy the lumbar spine BMD of ISS children was comparable to that of the controls (0.784 +/- 0.12 g/cm2vs. 0.785 +/- 0.09 g/cm2). Femoral neck BMD of our patients was similar to that of the controls at baseline and at 36 months. Following 1 year of GH treatment serum concentrations of PICP increased from 229.6 +/- 63.5 to 358.6 +/- 87.9 micro g/l, while levels of ICTP increased from 9.6 +/- 5.9 to 13.7 +/- 2.1 micro g/l. After 36 months of GH therapy, PICP and ICTP values had decreased to 303.3 +/- 67.2 micro g/l and 11.3 +/- 3.3 micro g/l, respectively, and were no longer significantly different from baseline. CONCLUSIONS Children with ISS have decreased lumbar spine BMD, which normalized after 1 year of GH. Over the next 2 years of therapy lumbar spine BMD increased at a normal rate, so that after 3 consecutive years of GH the lumbar spine BMD of children with ISS was similar to that of controls. Bone turnover increased with treatment as indicated by a rise in bone formation and bone resorption markers.
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Affiliation(s)
- Roberto Lanes
- Pediatric Endocrine Unit, Hospital de Clinicas Caracas and Division of Nephrology, Hospital Universitario de Caracas, Venezuela.
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Abstract
Aging is associated with a decrease in GH levels and this is paralleled by changes in body composition, i.e., increased visceral fat, and decreased lean body mass and bone mineral density. Similar changes in body composition are seen in the state of hypercortisolism. Increasing age has been shown to be associated with elevated evening cortisol levels in men. An increased exposure of several tissues to glucocorticoids with aging, i.e., visceral fat cells, in combination with the reduction of the lipolytic effects of declining GH levels, may contribute to the age-dependent increase of visceral fat accumulation. We hypothesize that the age-dependent changes in body fat are the result of an age-dependent decrease of the GH/cortisol ratio at the level of the adipocyte. This is caused by the decline in GH concentrations and the increase in cortisol levels and/or metabolism at the adipocyte.
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Affiliation(s)
- R Nass
- Department of Medicine, University of Virginia Health System, Charlottesville, Virginia 22908, USA
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Simpson H, Savine R, Sönksen P, Bengtsson BA, Carlsson L, Christiansen JS, Clemmons D, Cohen P, Hintz R, Ho K, Mullis P, Robinson I, Strasburger C, Tanaka T, Thorner M. Growth hormone replacement therapy for adults: into the new millennium. Growth Horm IGF Res 2002; 12:1-33. [PMID: 12127299 DOI: 10.1054/ghir.2001.0263] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Helen Simpson
- Medical Department M, Aarhus Kommunehospital, DK-8000, Aarhus C, Denmark
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Sanmartí A, Ulied A. Morbimortalidad cardiovascular en el hipopituitarismo. ¿Hay evidencias de que pueda atribuirse al déficit de hormona del crecimiento? ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1575-0922(02)74459-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
Until the advent of modern neuroradiological imaging techniques in 1989, a diagnosis of GH deficiency in adults carried little significance other than as a marker of hypothalamo-pituitary disease. The relatively recent recognition of a characteristic clinical syndrome associated with failure of spontaneous GH secretion and the potential reversal of many of its features with recombinant human GH has prompted a closer examination of the physiological role of GH after linear growth is complete. The safe clinical practice of GH replacement demands a method of judging overall GH status, but there is no biological marker in adults that is the equivalent of linear growth in a child by which to judge the efficacy of GH replacement. Assessment of optimal GH replacement is made difficult by the apparent diverse actions of GH in health, concern about the avoidance of iatrogenic acromegaly, and the growing realization that an individual's risk of developing certain cancers may, at least in part, be influenced by cumulative exposure to the chief mediator of GH action, IGF-I. As in all areas of clinical practice, strategies and protocols vary between centers, but most physicians experienced in the management of pituitary disease agree that GH is most appropriately begun at low doses, building up slowly to the final maintenance dose. This, in turn, is best determined by a combination of clinical response and measurement of serum IGF-I, avoiding supraphysiological levels of this GH-dependent peptide. Numerous studies have helped define the optimum management of GH replacement during childhood. The recent requirement to measure and monitor GH status in adult life has called into question the appropriateness of simplistic weight- and surface area-based dosing regimens for the management of GH deficiency in childhood, with reliance on linear growth as the sole marker of GH action. It is clear that the monitoring of parameters other than linear growth to help refine GH therapy should now be incorporated into childhood GH treatment protocols. Further research will be required to define the optimal management of the transition from pediatric to adult GH replacement; this transition will only be possible once the benefits of GH in mature adults are defined and accepted by pediatric and adult endocrinologists alike.
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Affiliation(s)
- W M Drake
- Department of Endocrinology, St. Bartholomew's Hospital, London EC1A 7BE, United Kingdom.
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