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di Filippo L, Bilezikian JP, Canalis E, Terenzi U, Giustina A. New insights into the vitamin D/PTH axis in endocrine-driven metabolic bone diseases. Endocrine 2024:10.1007/s12020-024-03784-6. [PMID: 38632163 DOI: 10.1007/s12020-024-03784-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 03/13/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Endocrine regulation of bone metabolisms is the focus of the "Skeletal Endocrinology" series of meetings. AIMS To report on the outcome of the discussion on the role of vitamin D/PTH axis in endocrine osteopathies held during the 10th Skeletal Endocrinology Meeting which took place in Stresa (Italy) in March 2023. OUTCOMES Vitamin D/PTH axis has relevant influence on several outcomes in the general population and in patients affected by endocrinopathies such as hypoparathyroidism and secreting pituitary adenomas. CONCLUSIONS Assessing the status of the vitamin D/PTH axis and using vitamin D and PTH as therapeutic agents is mandatory in several endocrine-related bone metabolic conditions.
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Affiliation(s)
- Luigi di Filippo
- Institute of Endocrine and Metabolic Sciences, San Raffaele Vita Salute University and IRCCS San Raffaele Hospital, Milan, Italy
| | - John P Bilezikian
- Department of Medicine, Endocrinology Division, Vagelos College of Physicians and Surgeons Columbia University, New York, NY, USA
| | - Ernesto Canalis
- Department of Orthopaedic Surgery, UConn Health, Farmington, Connecticut, USA; Department of Medicine, UConn Health, Farmington, Connecticut, USA; UConn Musculoskeletal Institute, UConn Health, Farmington, CT, USA
| | - Umberto Terenzi
- Institute of Endocrine and Metabolic Sciences, San Raffaele Vita Salute University and IRCCS San Raffaele Hospital, Milan, Italy
| | - Andrea Giustina
- Institute of Endocrine and Metabolic Sciences, San Raffaele Vita Salute University and IRCCS San Raffaele Hospital, Milan, Italy.
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Wydra A, Stelmachowska-Banaś M, Czajka-Oraniec I. Skeletal complications in acromegaly. Reumatologia 2023; 61:248-255. [PMID: 37745143 PMCID: PMC10515128 DOI: 10.5114/reum/169918] [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: 03/04/2023] [Accepted: 07/24/2023] [Indexed: 09/26/2023] Open
Abstract
Hypersecretion of growth hormone (GH) is rare and typically results from a pituitary functional tumor - somatotropinoma. It leads to excessive linear bone growth and manifests as gigantism if occurring in childhood and adolescence, before the closure of epiphyses or as a acromegaly in adulthood. The excess of GH impacts bone metabolism directly as well as indirectly through increased insulin-like growth factor 1 (IGF-1). In acromegaly as a consequence of overproduction of GH and IFG-1 and the influence of these hormones on bone osteoblasts, bone metabolism, growth and density increase. However, bone turnover is accelerated causing impaired bone microstructure and strength, which may lead to increased risk of vertebral fractures irrespective of normal bone mineral density. Apart from the changes in bone architecture, acromegaly also results in a degenerative joint disease of a different nature than primary osteoarthritis. Moreover, acromegaly leads to cardiovascular, metabolic and respiratory complications, and thus significantly impairs the quality of life. In this review, authors summarize the pathophysiology, diagnosis, and treatment of bone and joint disease in acromegaly.
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Affiliation(s)
- Arnika Wydra
- Department of Endocrinology, Centre of Postgraduate Medical Education, Bielanski Hospital, Warsaw, Poland
| | - Maria Stelmachowska-Banaś
- 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
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Frara S, Melin Uygur M, di Filippo L, Doga M, Losa M, Santoro S, Mortini P, Giustina A. High Prevalence of Vertebral Fractures Associated With Preoperative GH Levels in Patients With Recent Diagnosis of Acromegaly. J Clin Endocrinol Metab 2022; 107:e2843-e2850. [PMID: 35349698 DOI: 10.1210/clinem/dgac183] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Indexed: 01/01/2023]
Abstract
CONTEXT Osteopathy and morphometric vertebral fractures (VFs) are emerging complications in acromegaly. However, the prediction of VFs in this clinical setting is still a matter of uncertainty, and it is debated whether they are an early event in the natural history of the disease. OBJECTIVE We aimed to evaluate the prevalence and determinants of morphometric VFs in patients with recently diagnosed acromegaly. METHODS We enrolled 92 patients (43 men/49 women) on admission to the neurosurgery unit before transsphenoidal surgery, and compared them with control individuals without secondary forms of osteoporosis and pituitary disorders. We performed a VF assessment on preoperative chest x-ray images and collected biochemical, demographic, and clinical data. RESULTS We detected a significantly higher prevalence of VFs (33.7%) in patients with acromegaly than in controls (P = .001). Among the patients with acromegaly and VFs, 12 (38.7%) showed multiple VFs, and 5 (16.1%) showed moderate/severe VFs. Patients with VFs had higher random serum growth hormone (GH) levels than those with no VFs (P = .03), but there was no difference in insulin-like growth factor-1 (IGF-1) (P = .07) and IGF-1/Upper Normal Limit ratio (P = .08). Free 3,5,3'-triiodothyronine was slightly lower in patients with acromegaly and VFs than in those without VFs (P = .05). In multiple logistic analysis, GH was independently associated with risk for VFs (P = .003). The preoperative serum GH cutoff value that predicted VFs was 12 ng/mL. CONCLUSION For the first time, high prevalence of radiological VFs is reported in patients with recent diagnosis of acromegaly. Therefore, we can hypothesize that VFs are an early phenomenon of acromegaly and related to GH levels. VF assessment should be included in the workup at the diagnosis of acromegaly.
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Affiliation(s)
- Stefano Frara
- Institute of Endocrine and Metabolic Sciences, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Meliha Melin Uygur
- Marmara University Pendik Training and Research Hospital, Department of Endocrinology and Metabolism Disease, 34800 Istanbul, Turkey
| | - Luigi di Filippo
- Institute of Endocrine and Metabolic Sciences, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Mauro Doga
- Institute of Endocrine and Metabolic Sciences, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Marco Losa
- Department of Neurosurgery, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Simona Santoro
- Institute of Endocrine and Metabolic Sciences, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Pietro Mortini
- Department of Neurosurgery, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, 20132 Milan, Italy
| | - Andrea Giustina
- Institute of Endocrine and Metabolic Sciences, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, 20132 Milan, Italy
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Povaliaeva AA, Bogdanov VP, Zhukov AY, Pigarova EA, Dzeranova LK, Rozhinskaya LY, Mel'nichenko GA, Mokrysheva NG. Characterization of vitamin D metabolism in active acromegaly in the setting of bolus (150,000 IU) cholecalciferol treatment. Endocrine 2022; 76:407-418. [PMID: 35138562 DOI: 10.1007/s12020-022-02994-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/22/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE To reveal distinctive features of vitamin D metabolism in patients with active acromegaly compared to healthy individuals, particularly in the setting of cholecalciferol treatment. METHODS The study group included 34 adults with active acromegaly, and the control group included 30 apparently healthy adults with similar age, sex, and BMI. All participants received a single dose (150,000 IU) of cholecalciferol aqueous solution orally. Laboratory assessments including serum vitamin D metabolites (25(OH)D3, 25(OH)D2, 1,25(OH)2D3, 3-epi-25(OH)D3 and 24,25(OH)2D3), free 25(OH)D, vitamin D-binding protein (DBP) and parathyroid hormone (PTH) as well as serum and urine biochemical parameters were performed before the intake and on Days 1, 3, and 7 after the administration. All data were analyzed with nonparametric statistics. RESULTS Patients with acromegaly had tendency to lower baseline 25(OH)D3 levels (p = 0.05) and lower 25(OH)D3 levels (p < 0.05) during the follow-up. They were also characterized by PTH suppression (lower baseline PTH levels and lower prevalence of secondary hyperparathyroidism), altered production of main vitamin D metabolites (higher 1,25(OH)2D3 and lower 24,25(OH)2D3 levels with corresponding lower 25(ОН)D3/1,25(ОН)2D3 and higher 25(ОН)D3/24,25(ОН)2D3 ratios) as well as concordant biochemical features (higher levels of serum phosphorus and albumin-adjusted calcium levels) throughout the study (p < 0.05). The acromegaly group showed an increase in DBP levels after cholecalciferol intake as opposed to the control group (p < 0.05) and had lower increase in free 25(OH)D levels (p < 0.05). Δ25(OH)D3 was similar between the groups (p > 0.05), showed a negative correlation with the disease activity markers-both IGF-1 levels (r = -0.44, p < 0.05) and fasting GH levels (r = -0.56, p < 0.05)-and lacked correlation with BMI in the acromegaly group (p > 0.05). CONCLUSION Patients with active acromegaly have dysregulated vitamin D metabolism characterized by higher 1,25(ОН)2D3, lower 24,25(ОН)2D3 and altered DBP production. The response to vitamin D supplementation in acromegaly patients might be influenced by hormonal excess. Obtained results require reproducibility check and further study to develop specific clinical recommendations. TRIAL REGISTRATION NCT04844164 (release date: April 9, 2021; retrospectively registered).
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Affiliation(s)
| | - Viktor P Bogdanov
- Endocrinology Research Centre, 11, Dmitriya Ul'yanova street, Moscow, 117036, Russia
| | - Artem Yu Zhukov
- Endocrinology Research Centre, 11, Dmitriya Ul'yanova street, Moscow, 117036, Russia
| | - Ekaterina A Pigarova
- Endocrinology Research Centre, 11, Dmitriya Ul'yanova street, Moscow, 117036, Russia
| | - Larisa K Dzeranova
- Endocrinology Research Centre, 11, Dmitriya Ul'yanova street, Moscow, 117036, Russia
| | | | - Galina A Mel'nichenko
- Endocrinology Research Centre, 11, Dmitriya Ul'yanova street, Moscow, 117036, Russia
| | - Natalia G Mokrysheva
- Endocrinology Research Centre, 11, Dmitriya Ul'yanova street, Moscow, 117036, Russia
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Abstract
Epidemiological data predict a dramatic increase in the prevalence of diabetes and of diabetic retinopathy (DR) - the most common complication of diabetes-for which however we do not have so far effective tools for prevention and treatment. Since hypovitaminosis D is very frequent in patients with diabetes and vitamin D (VD) has vascular protective properties, several studies have addressed the association of VD deficiency with DR and its severity and progression, whereas the effects of VD supplementation on its natural history are largely unknown. Here we review the available evidence that supports the possible protective role of VD in DR and suggests to determine the VD levels in DR patients calling for a definitive randomized clinical trial to ascertain whether VD supplementation could protect against DR.
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Affiliation(s)
- Francesco Tecilazich
- Institute of Endocrine and Metabolic Sciences, San Raffaele Vita Salute University and IRCCS San Raffaele Hospital, Milan, Italy
| | - Anna Maria Formenti
- Institute of Endocrine and Metabolic Sciences, San Raffaele Vita Salute University and IRCCS San Raffaele Hospital, Milan, Italy
| | - Andrea Giustina
- Institute of Endocrine and Metabolic Sciences, San Raffaele Vita Salute University and IRCCS San Raffaele Hospital, Milan, Italy.
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6
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Bilezikian JP, Formenti AM, Adler RA, Binkley N, Bouillon R, Lazaretti-Castro M, Marcocci C, Napoli N, Rizzoli R, Giustina A. Vitamin D: Dosing, levels, form, and route of administration: Does one approach fit all? Rev Endocr Metab Disord 2021; 22:1201-1218. [PMID: 34940947 PMCID: PMC8696970 DOI: 10.1007/s11154-021-09693-7] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/02/2021] [Indexed: 02/07/2023]
Abstract
The 4th International Conference on Controversies in Vitamin D was held as a virtual meeting in September, 2020, gathering together leading international scientific and medical experts in vitamin D. Since vitamin D has a crucial role in skeletal and extra-skeletal systems, the aim of the Conference was to discuss improved management of vitamin D dosing, therapeutic levels and form or route of administration in the general population and in different clinical conditions. A tailored approach, based on the specific mechanisms underlying vitamin D deficiency in different diseases that were discussed, was recommended. Specifically, in comparison to healthy populations, higher levels of vitamin D and greater amounts of vitamin D were deemed necessary in osteoporosis, diabetes mellitus, obesity (particularly after bariatric surgery), and in those treated with glucocorticoids. Emerging and still open issues were related to target vitamin D levels and the role of vitamin D supplementation in COVID-19 since low vitamin D may predispose to SARS-CoV-2 infection and to worse COVID-19 outcomes. Finally, whereas oral daily cholecalciferol appears to be the preferred choice for vitamin D supplementation in the general population, and in most clinical conditions, active vitamin D analogs may be indicated in patients with hypoparathyroidism and severe kidney and liver insufficiency. Parenteral vitamin D administration could be helpful in malabsorption syndromes or in states of vitamin D resistance.Specific guidelines for desired levels of vitamin D should be tailored to the different conditions affecting vitamin D metabolism with the goal to define disease-specific normative values.
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Affiliation(s)
- John P Bilezikian
- Department of Medicine, Endocrinology Division, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Anna Maria Formenti
- Institute of Endocrine and Metabolic Sciences, San Raffaele, Vita-Salute University and IRCCS Hospital, Milano, Italy
| | - Robert A Adler
- McGuire Veterans Affairs Medical Center and Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | | | - Roger Bouillon
- Laboratory of Clinical and Experimental Endocrinology, Department of chronic diseases, metabolism and ageing, Leuven, KU, Belgium
| | - Marise Lazaretti-Castro
- Division of Endocrinology, Escola Paulista de Medicina - Universidade Federal de Sao Paulo (EPM-UNIFESP), Sao Paulo, Brazil
| | - Claudio Marcocci
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Nicola Napoli
- Unit of Endocrinology and Diabetes, Campus Bio-Medico University of Rome, Rome, Italy
| | - Rene Rizzoli
- Service of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Andrea Giustina
- Institute of Endocrine and Metabolic Sciences, San Raffaele, Vita-Salute University and IRCCS Hospital, Milano, Italy.
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Abstract
BACKGROUND Vitamin D and its deficiency have recently been suspected to be involved in increased susceptibility and negative outcomes of COVID-19. This assumption was based on the well known immunomodulatory actions of vitamin D and on the consistent finding of low levels of 25 hydroxyvitamin D (25OHD) in hospitalized patients with COVID-19. Moreover, several studies reported a correlation between 25OHD levels and different clinical outcomes of the disease. AIM Aim of the current review was to approach the topic of vitamin D and COVID-19 from a different perspective summarizing the data which led to the evidence of the existence of an endocrine phenotype of COVID-19. CONCLUSIONS This review analyzed in the light of the current knowledge the possibility that several endocrine manifestations of COVID-19 could be holistically interpreted in the context of an inadequate vitamin D status.
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Affiliation(s)
- Andrea Giustina
- Institute of Endocrine and Metabolic Sciences, San Raffaele, Vita-Salute University and IRCCS Hospital, Milan, Italy.
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8
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Giustina A. Acromegaly and Vertebral Fractures: Facts and Questions. Trends Endocrinol Metab 2020; 31:274-275. [PMID: 32187523 DOI: 10.1016/j.tem.2020.01.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/26/2019] [Accepted: 01/13/2020] [Indexed: 11/15/2022]
Abstract
Here I review vertebral fractures (VFs) as an emerging complication of acromegaly through a pathway of key questions in order to help clinicians manage the disease. Peculiarities of acromegalic osteopathy are that VFs are common but not explained by low bone mineral density (BMD) being related to disease duration and activity, and occurring even after remission.
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Affiliation(s)
- Andrea Giustina
- Division and Chair of Endocrinology and Metabolism, San Raffaele University Hospital, Milan, Italy.
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10
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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: 95] [Impact Index Per Article: 15.8] [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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Dalle Carbonare L, Micheletti V, Cosaro E, Valenti MT, Mottes M, Francia G, Davì MV. Bone histomorphometry in acromegaly patients with fragility vertebral fractures. Pituitary 2018; 21:56-64. [PMID: 29214508 DOI: 10.1007/s11102-017-0847-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
CONTEXT The high risk of vertebral fractures (VFs) in acromegaly patients despite normal bone mineral density (BMD) is well known. The reasons for this paradoxical finding of skeleton fragility are poorly understood due to the limited data on bone histomorphometry in acromegaly. OBJECTIVE This study aimed to analyze histomorphometric parameters including bone microarchitecture in acromegaly patients with VFs and normal BMD compared to normal subjects, and also to evaluate the differences between active and controlled acromegaly patients. PATIENTS AND METHODS Forty-seven acromegaly patients (17 active, 30 controlled), median (range) age 57 years (30-88) were evaluated for bone turnover, morphometric VFs and BMD by dual-energy X-ray absorptiometry at lumbar spine and hip; 12 patients with VFs and normal BMD underwent iliac crest bone biopsy; 12 biopsies were taken at the autopsy in healthy sex and age-matched control subjects. RESULTS The histomorphometric evaluation of acromegaly fractured patients was compared with that of normal controls and showed significantly reduced median (range) levels of bone volume/tissue volume (BV/TV: 15.37% (7.93-26.75) vs. 18.61% (11.75-27.31), p = 0.036), trabecular thickness (TbTh: 77.6 µm (61.7-88.3) vs. 82.7 µm (72.3-92.0) p = 0.045), with increased trabecular separation (TbSp: 536.4 µm (356.2-900.6) vs. 370.3 µm (377.1-546.3) p = 0.038) and increased cortical thickness (1268 μm (752-2521) vs. 1065 μm (851-1205) p = 0.025) and porosity (11.9% (10.2-13.3) vs. 4.8% (1.6-8.8) p = 0.0008). While active acromegaly patients showed histomophometric features of increased bone turnover, patients with controlled disease presented normal bone turnover with significantly lower osteoblastic activity, expressed as osteoblast number (p = 0.001), active osteoblasts and vigor (p = 0.014) in the presence of reduced osteocyte number (p = 0.008) compared to active disease. CONCLUSIONS The apparent paradox of bone fragility in acromegaly patients with a normal BMD can be explained by increased cortical thickness and porosity and reduced trabecular thickness with increased trabecular separation. These structural and microarchitectural abnormalities persist in the controlled phase of acromegaly despite bone turnover normalization. The main determinant of bone disease after hormonal control is severe osteoblastic dysfunction.
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Affiliation(s)
- L Dalle Carbonare
- Department of Medicine, Medicina Interna D, University of Verona, Piazzale Scuro, Policlinico G.B. Rossi, 37134, Verona, Italy.
| | - V Micheletti
- Department of Medicine, Medicina Interna D, University of Verona, Piazzale Scuro, Policlinico G.B. Rossi, 37134, Verona, Italy
| | - E Cosaro
- Department of Medicine, Medicina Interna D, University of Verona, Piazzale Scuro, Policlinico G.B. Rossi, 37134, Verona, Italy
| | - M T Valenti
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Verona, Italy
| | - M Mottes
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Verona, Italy
| | - G Francia
- Endocrinology Unit, Ospedale Pederzoli, Peschiera del Garda, Verona, Italy
| | - M V Davì
- Department of Medicine, Medicina Interna D, University of Verona, Piazzale Scuro, Policlinico G.B. Rossi, 37134, Verona, Italy
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12
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Pedersini R, Monteverdi S, Mazziotti G, Amoroso V, Roca E, Maffezzoni F, Vassalli L, Rodella F, Formenti AM, Frara S, Maroldi R, Berruti A, Simoncini E, Giustina A. Morphometric vertebral fractures in breast cancer patients treated with adjuvant aromatase inhibitor therapy: A cross-sectional study. Bone 2017; 97:147-152. [PMID: 28104509 DOI: 10.1016/j.bone.2017.01.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 12/27/2016] [Accepted: 01/14/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND The impact of long-term adjuvant therapy with aromatase inhibitors (AIs) on vertebral fracture (VF) risk is still unclear. OBJECTIVE In this cross-sectional study, we explored the prevalence and determinants of VFs in breast cancer (BC) patients before and during AI therapy. Each woman underwent a dual-energy X-ray absorptiometry (DXA) to evaluate bone mineral density (BMD) and identify VFs by a quantitative morphometric approach. Blood samples were collected to measure serum hormone and calcium levels. RESULTS We consecutively included 263 postmenopausal women with hormone receptor-positive early BC. One-hundred-sixty-nine women were AI-naïve, and 94 were AI-treated. AI-treated patients had lower BMD at total hip (p=0.01) and lumbar spine (p=0.03), higher serum vitamin D (p<0.001) and parathyroid hormone (p=0.006) values as compared to AI-naïve patients. The prevalence of VFs was 18.9% in AI-naïve patients, and 31.2% in those assessed during AI therapy (odds ratio 1.90, 95% CI 1.1-3.5, p=0.03). In AI-naïve patients, VFs were associated with older age (p=0.002) and lower BMD values at femoral neck (p=0.04) and total hip (p=0.007), whereas VFs occurred without association with any parameter analyzed in AI-treated patients. In AI-treated group, the prevalence of VFs was not significantly different between patients with osteoporosis and those with normal BMD (36.7% vs. 20.0%; p=0.31). CONCLUSIONS In women with early BC, AI therapy is associated with high prevalence of radiological VFs, which were shown to be independent of BMD values during the adjuvant treatment. These findings may be clinically relevant since they may lead to a change in management of AI-induced skeletal fragility. Specifically, the results of this study provide a rationale for performing a morphometric evaluation of VFs in all women undergoing treatment with AIs.
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Affiliation(s)
- Rebecca Pedersini
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Medical Oncology Unit, Brescia, Italy; Breast Unit, Spedali Civili Hospital, Brescia, Italy
| | - Sara Monteverdi
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Medical Oncology Unit, Brescia, Italy; Breast Unit, Spedali Civili Hospital, Brescia, Italy
| | - Gherardo Mazziotti
- Endocrine and Bone Unit, Department of Medicine, ASST "Carlo Poma", Mantova, Italy
| | - Vito Amoroso
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Medical Oncology Unit, Brescia, Italy.
| | - Elisa Roca
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Medical Oncology Unit, Brescia, Italy
| | - Filippo Maffezzoni
- Department of Molecular and Translational Medicine, University of Brescia, Italy; Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Radiology Unit, Brescia, Italy
| | - Lucia Vassalli
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Medical Oncology Unit, Brescia, Italy; Breast Unit, Spedali Civili Hospital, Brescia, Italy
| | - Filippo Rodella
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Medical Oncology Unit, Brescia, Italy; Breast Unit, Spedali Civili Hospital, Brescia, Italy
| | - Anna Maria Formenti
- Department of Molecular and Translational Medicine, University of Brescia, Italy; Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Radiology Unit, Brescia, Italy
| | - Stefano Frara
- Endocrinology, San Raffaele Vita-Salute University, Milan, Italy
| | - Roberto Maroldi
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Radiology Unit, Brescia, Italy
| | - Alfredo Berruti
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Spedali Civili Hospital, Medical Oncology Unit, Brescia, Italy
| | | | - Andrea Giustina
- Endocrinology, San Raffaele Vita-Salute University, Milan, Italy
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Abstract
Acromegalic osteopathy is an emerging complication of acromegaly characterized by increase in bone turnover, deterioration in bone microarchitecture and high risk of vertebral fractures. Vertebral fractures, as diagnosed by a radiological and morphometric approach, occur in about one-third of acromegaly patients in close relationship with duration of active disease. However, the prediction of vertebral fractures in this clinical setting is still a matter of uncertainty, since the pathogenesis of acromegalic osteopathy is multifactorial and fractures may occur even in presence of normal bone mineral density. In this narrative article, we summarize the pathophysiology and clinical aspects of acromegalic osteopathy.
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Affiliation(s)
- G Mazziotti
- Chair of Endocrinology, University of Brescia, Via Biseo, 17, 25123, Brescia, Italy
- Endocrinology Unit, ASST Carlo Poma of Mantua, Mantua, Italy
| | - F Maffezzoni
- Chair of Endocrinology, University of Brescia, Via Biseo, 17, 25123, Brescia, Italy
| | - S Frara
- Chair of Endocrinology, University of Brescia, Via Biseo, 17, 25123, Brescia, Italy
| | - A Giustina
- Chair of Endocrinology, University of Brescia, Via Biseo, 17, 25123, Brescia, Italy.
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14
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Frara S, Maffezzoni F, Mazziotti G, Giustina A. Current and Emerging Aspects of Diabetes Mellitus in Acromegaly. Trends Endocrinol Metab 2016; 27:470-483. [PMID: 27229934 DOI: 10.1016/j.tem.2016.04.014] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 04/28/2016] [Accepted: 04/28/2016] [Indexed: 12/11/2022]
Abstract
Diabetes mellitus is a frequent complication of acromegaly, a disease characterized by chronic hypersecretion of growth hormone (GH) by a pituitary adenoma. Diabetes occurs commonly but not only as a consequence of an insulin-resistant state induced by GH excess. The development of diabetes in patients with acromegaly is clinically relevant, since such a complication is thought to increase the already elevated cardiovascular morbidity and mortality risk of the disease. Emerging data suggest that a specific cardiomyopathy can be identified in acromegaly patients with diabetes. Moreover, the presence of diabetes may also influence therapeutic decision making in acromegaly, since traditional and newly developed drugs used in this clinical setting may impact glucose metabolism regardless of control of GH hypersecretion.
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Affiliation(s)
- Stefano Frara
- Endocrinology and Metabolic Diseases Unit, Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Filippo Maffezzoni
- Endocrinology and Metabolic Diseases Unit, Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | | | - Andrea Giustina
- Endocrinology and Metabolic Diseases Unit, Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy.
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