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Barbato A, Vergatti A, Giaquinto A, Pizzulo IL, Perna L, Perruolo G, Abate V, Sibilio M, Mainolfi C, Soscia E, De Filippo G, Formisano P, Galletti F, Strazzullo P, Rendina D. Imiglucerase, cholecalciferol, and bone-diet in skeletal health management of type I Gaucher disease patients: a pilot study and systematic review. JBMR Plus 2024; 8:ziae071. [PMID: 39006867 PMCID: PMC11245647 DOI: 10.1093/jbmrpl/ziae071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 05/03/2024] [Accepted: 05/23/2024] [Indexed: 07/16/2024] Open
Abstract
Skeletal anomalies represent a characteristic feature of type 1 Gaucher disease (GD1). Here we evaluated the impact of an integrated therapy comprising enzyme-replacement therapy (ERT), cholecalciferol, and a normocalcemic-normocaloric-hyposodic diet (bone diet) on bone health in GD1 patients. We also performed a systematic review to compare our results with available data. From January 1, 2015 to February 28, 2019, all GD1 patients referred to Federico II University were enrolled and treated with the integrated therapy. Bone turnover markers and bone mineral density (BMD) were evaluated at baseline (T0) and after 24 months (T24). We enrolled 25 GD1 patients, all showing 25-hydroxy vitamin D (25OHD) levels < 50 nmol/l (hypovitaminosis D) at T0. Response to cholecalciferol treatment was effective, showing a direct relationship between 25OHD levels before and after treatment. At T0, 2 GD1 patients showed fragility fractures, 5 the Erlenmeyer flask deformity, 3 osteonecrosis, and 7 a BMD Z-score ≤ -2. Overall, GD1 patients with bone anomalies showed higher C-terminal telopeptide levels compared with those without bone anomalies. No new bone anomalies occurred during 2 years of follow-up. At T24, BMD remained stable across the entire study cohort, including in patients with bone anomalies. The systematic review showed that our study is the first that evaluated all bone health parameters. Hypovitaminosis D is prevalent in GD1 patients. The response to cholecalciferol treatment was effective but different to healthy subjects and in patients with metabolic bone disorders. Integrated therapy including ERT, cholecalciferol, and bone diet guarantees bone health.
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Affiliation(s)
- Antonio Barbato
- Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy
| | - Anita Vergatti
- Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy
| | - Alfonso Giaquinto
- Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy
| | - Ilaria Libera Pizzulo
- Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy
| | - Ludovica Perna
- Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy
| | - Giuseppe Perruolo
- Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy
| | - Veronica Abate
- Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy
| | - Michelina Sibilio
- Metabolic Diseases Unit, Santobono-Pausilipon Children's Hospital, 80129 Naples, Italy
| | - Ciro Mainolfi
- Department of Advanced Biomedical Sciences, Federico II University of Naples, 80131 Naples, Italy
| | - Ernesto Soscia
- Institute of Biostructures and Bioimaging of the National Research Council – CNR, 80131 Naples, Italy
| | - Gianpaolo De Filippo
- Assistance Publique-Hôpitaux de Paris, Hôpital Robert-Debré, Service d’Endocrinologie-Diabétologie, 75019 Paris, France
| | - Pietro Formisano
- Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy
| | - Ferruccio Galletti
- Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy
| | - Pasquale Strazzullo
- Former Professor of Internal Medicine, Federico II University, 80131 Naples, Italy
| | - Domenico Rendina
- Department of Clinical Medicine and Surgery, Federico II University of Naples, 80131 Naples, Italy
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2
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Kałużna M, Trzeciak I, Ziemnicka K, Machaczka M, Ruchała M. Endocrine and metabolic disorders in patients with Gaucher disease type 1: a review. Orphanet J Rare Dis 2019; 14:275. [PMID: 31791361 PMCID: PMC6889605 DOI: 10.1186/s13023-019-1211-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/24/2019] [Indexed: 12/26/2022] Open
Abstract
Background Gaucher disease (GD) is one of the most prevalent lysosomal storage diseases and is associated with hormonal and metabolic abnormalities, including nutritional status disorders, hypermetabolic state with high resting energy expenditures, peripheral insulin resistance, hypoadiponectinaemia, leptin and ghrelin impairments, hypolipidaemia, linear growth deceleration and growth hormone deficiency, delayed puberty, hypocalcaemia and vitamin D deficiency. Specific treatments for GD such as enzyme replacement therapy and substrate reduction therapy display significant effects on the metabolic profile of GD patients. Main body of the abstract Hormonal and metabolic disturbances observed in both adult and paediatric patients with Gaucher disease type 1 (GD1) are discussed in this review. The PubMed database was used to identify articles on endocrine and metabolic disorders in GD1. GD1 appears to facilitate the development of disorders of nutrition, glucose metabolism and vitamin D insufficiency. Metabolic and hormonal diseases may have a significant impact on the course of the underlying disease and patient quality of life. Conclusions Conditions relating to hormones and metabolism can be wide-ranging in GD1. Obtained findings were intrinsic to GD either as a deleterious process or a compensatory response and some changes detected may represent co-morbidities. Actively seeking and diagnosing endocrine and metabolic disorders are strongly recommended in GD1 patients to optimize healthcare.
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Affiliation(s)
- Małgorzata Kałużna
- Ward of Endocrinology, Metabolism and Internal Diseases Ward, Heliodor Swiecicki University Hospital, Poznan, Poland. .,Department of Endocrinology Metabolism and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland.
| | - Isabella Trzeciak
- Department of Endocrinology Metabolism and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Katarzyna Ziemnicka
- Ward of Endocrinology, Metabolism and Internal Diseases Ward, Heliodor Swiecicki University Hospital, Poznan, Poland.,Department of Endocrinology Metabolism and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Maciej Machaczka
- Medical Faculty, University of Rzeszow, Rzeszow, Poland.,Department of Clinical Science and Education, Division of Internal Medicine, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Marek Ruchała
- Ward of Endocrinology, Metabolism and Internal Diseases Ward, Heliodor Swiecicki University Hospital, Poznan, Poland.,Department of Endocrinology Metabolism and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
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3
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Reed MC, Bauernfreund Y, Cunningham N, Beaton B, Mehta AB, Hughes DA. Generation of osteoclasts from type 1 Gaucher patients and correlation with clinical and genetic features of disease. Gene 2018; 678:196-206. [DOI: 10.1016/j.gene.2018.08.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 07/21/2018] [Accepted: 08/08/2018] [Indexed: 01/18/2023]
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Baldini M, Casirati G, Ulivieri FM, Cassinerio E, Khouri Chalouhi K, Poggiali E, Borin L, Burghignoli V, Cesana BM, Cappellini MD. Skeletal involvement in type 1 Gaucher disease: Not just bone mineral density. Blood Cells Mol Dis 2017; 68:148-152. [PMID: 28693786 DOI: 10.1016/j.bcmd.2017.06.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 06/14/2017] [Accepted: 06/14/2017] [Indexed: 11/28/2022]
Abstract
Gaucher disease is characterized by multi-organ infiltration of phospholipid-laden macrophages. Bone involvement is characterized by typical deformities, osteopenia/osteoporosis, pathological fractures, and bone marrow infiltration (avascular osteonecrosis, infarction). Estimation of skeletal disease includes bone quality that contributes substantially to bone strength. We studied 23 type 1 Gaucher patients (median age 22years, range 3-73) on Enzyme Replacement Therapy from 2months to 26years (median 7years); 4 patients had pathological fractures, 10 bone infarctions, 6 avascular osteonecrosis. We noninvasively assessed bone quality by trabecular microarchitecture and macroscopic geometry, using two innovative dual-energy X-ray absorptiometry tools: Trabecular Bone Score (TBS) and Hip Structural Analysis (HSA). Bone quality parameters distinguished the patients with skeletal complications. TBS was significantly lower in patients with avascular osteonecrosis (p=0.049) and pathological fractures (p=0.024), while it could not identify those with bone infarctions. Among HSA parameters, the Cross Sectional Area of the intertrochanteric region and the Buckling Ratio of the narrow neck allowed the distinction of patients with avascular osteonecrosis. BMD was low in 11 patients (50%); neither BMD nor HSA were associated with pathological fractures. The combined evaluation of bone quality and bone quantity is useful to identify GD patients with more severe skeletal involvement.
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Affiliation(s)
- M Baldini
- UOC Medicina Interna, Foundation IRCCS "Ca' Granda" Ospedale Maggiore Policlinico, Milan, Italy.
| | - G Casirati
- UOC Medicina Interna, Foundation IRCCS "Ca' Granda" Ospedale Maggiore Policlinico, Milan, Italy; Hematology and Bone Marrow Transplantation Unit, Vita-Salute San Raffaele University, Milan, Italy
| | - F M Ulivieri
- Bone Metabolic Unit, Department of Nuclear Medicine, Foundation IRCCS "Ca' Granda" Ospedale Maggiore Policlinico, Milan, Italy
| | - E Cassinerio
- UOC Medicina Interna, Foundation IRCCS "Ca' Granda" Ospedale Maggiore Policlinico, Milan, Italy
| | - K Khouri Chalouhi
- Scuola di Specializzazione in Radiodiagnostica, University of Milan, Milan, Italy
| | - E Poggiali
- UOC Medicina Interna, Foundation IRCCS "Ca' Granda" Ospedale Maggiore Policlinico, Milan, Italy
| | - L Borin
- Department of Hematology, Ospedale San Gerardo, Monza, Italy
| | - V Burghignoli
- Radiology Unit, Foundation IRCCS "Ca' Granda" Ospedale Maggiore Policlinico, Milan, Italy
| | - B M Cesana
- University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - M D Cappellini
- UOC Medicina Interna, Foundation IRCCS "Ca' Granda" Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Science and Community Health, University of Milan, Milan, Italy
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Larroudé MS, Aguilar G, Rossi I, Drelichman G, Fernandez Escobar N, Basack N, Slago M, Schenone A, Fynn A, Cuello MF, Fernandez R, Ruiz A, Reichel P, Guelbert N, Robledo H, Watman N, Bolesina M, Elena G, Veber SE, Pujal G, Galvan G, Chain JJ, Arizo A, Bietti J, Aznar M, Dragosky M, Marquez M, Feldman L, Muller K, Zirone S, Buchovsky G, Lanza V, Fernandez I, Jaureguiberry R, Barbieri MA, Maro A, Zarate G, Fernandez G, Rapetti M, Degano A, Kantor G, Albina A, Alvarez Bollea M, Arrocena H, Bacciedoni V, Del Rio F. Evaluation of Bone Mineral Density in Patients with Type 1 Gaucher Disease in Argentina. J Clin Densitom 2016; 19:444-449. [PMID: 27574779 DOI: 10.1016/j.jocd.2016.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 06/29/2016] [Accepted: 07/27/2016] [Indexed: 01/18/2023]
Abstract
The purpose of this study was to evaluate the frequency of osteoporosis (OP) in patients with Gaucher disease (GD) in Argentina. GD patients from 28 centers were consecutively included from April 2012 to 2014. Bone mineral density (BMD) was determined by dual X-ray absorptiometry in the lumbar spine and the femoral neck or the total proximal femur for patients ≥20 yr of age, and by whole-body scan in the lumbar spine in patients <20 yr of age. In children, mineral density was calculated using the chronological age and Z height. OP diagnosis was determined following adult and pediatric official position of the International Society for Clinical Densitometry. A total of 116 patients were included, of which 62 (53.5%) were women. The median age was 25.8 yr. All patients received enzyme replacement therapy, with a median time of 9.4 yr. Normal BMD was found in 89 patients (76.7%), whereas low bone mass (LBM) or osteopenia was found in 15 patients (13%) and OP in 12 patients (10.3%). The analysis of the pediatric population revealed that 4 patients (9.3%) had LBM and 3 (7%) had OP (Z-score ≤ -2 + fractures height-adjusted by Z), whereas in the adult population (n = 73), 11 patients (15%) had LBM or osteopenia and 9 (12.3%) had OP. Bone marrow infiltration and the presence of fractures were significantly correlated with the presence of OP (p = 0.04 and <0.001, respectively). This is the first study in Argentina and in the region describing the frequency of OP or LBM in GD patients treated with imiglucerase using the official position of the International Society for Clinical Densitometry.
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Affiliation(s)
- M S Larroudé
- Departamento de Densitometría ósea, Centro de Diagnóstico E. Rossi, Buenos Aires, Argentina; Departamento de Densitometría ósea, Hospital Cesar Milstein, Buenos Aires, Argentina.
| | - G Aguilar
- Departamento de Densitometría ósea, Centro de Diagnóstico E. Rossi, Buenos Aires, Argentina
| | - I Rossi
- Departamento de Densitometría ósea, Centro de Diagnóstico E. Rossi, Buenos Aires, Argentina
| | - G Drelichman
- Hospital de Niños "Ricardo Gutiérrez," CABA, Buenos Aires, Argentina
| | | | - N Basack
- Hospital de Niños "Ricardo Gutiérrez," CABA, Buenos Aires, Argentina
| | - M Slago
- Department of Hematology, Laboratorio de Neuroquímica "Dr. N.A. Chamoles," Buenos Aires, Argentina
| | - A Schenone
- Department of Hematology, Laboratorio de Neuroquímica "Dr. N.A. Chamoles," Buenos Aires, Argentina
| | - A Fynn
- Department of Hematology, Hospital de Niños "Sor María Ludovica," La Plata, Argentina
| | - M F Cuello
- Department of Hematology, Hospital de Niños "Sor María Ludovica," La Plata, Argentina
| | - R Fernandez
- Department of Hematology, Hospital de Niños "Sor María Ludovica," La Plata, Argentina
| | - A Ruiz
- Department of Hematology, Hospital CEpsi Eva Perón, Santiago del Estero, Argentina
| | - P Reichel
- Department of Hematology, Hospital CEpsi Eva Perón, Santiago del Estero, Argentina
| | - N Guelbert
- Department of Hematology, Hospital Provincial de Niños "Santa Trinidad," Córdoba, Argentina
| | - H Robledo
- Department of Hematology, Hospital Provincial de Niños "Santa Trinidad," Córdoba, Argentina
| | - N Watman
- Hospital Ramos Mejía, CABA, Buenos Aires, Argentina
| | - M Bolesina
- Hospital Ramos Mejía, CABA, Buenos Aires, Argentina
| | - G Elena
- Hospital de Niños Pedro de Elizalde, CABA, Buenos Aires, Argentina
| | - S E Veber
- Hospital de Niños Pedro de Elizalde, CABA, Buenos Aires, Argentina
| | - G Pujal
- Department of Hematology, Hospital "Dr. Julio C. Perrando," Chaco, Argentina
| | - G Galvan
- Department of Hematology, Hospital "Dr. Julio C. Perrando," Chaco, Argentina
| | - J J Chain
- Department of Hematology, Hospital del Niño Jesús, Tucumán, Argentina
| | - A Arizo
- Department of Hematology, Hospital Iturraspe, Santa Fe, Argentina
| | - J Bietti
- Department of Hematology, Hospital Iturraspe, Santa Fe, Argentina
| | - M Aznar
- Department of Hematology, Instituto Médico Platense, La Plata, Argentina
| | - M Dragosky
- Department of Hematology, Hospital de Oncología "M. Curie," Buenos Aires, Argentina
| | - M Marquez
- Department of Hematology, Hospital de Oncología "M. Curie," Buenos Aires, Argentina
| | - L Feldman
- Clínica Modelo de Tandil, Pcia, Buenos Aires, Argentina
| | - K Muller
- Clínica Modelo de Tandil, Pcia, Buenos Aires, Argentina
| | - S Zirone
- Department of Hematology, Clínica del Niño del Rosario, Santa Fe, Argentina
| | - G Buchovsky
- Department of Hematology, Hospital Escuela de Corrientes, Corrientes, Argentina
| | - V Lanza
- Hospital Materno Infantil de Mar del Plata, Pcia, Buenos Aires, Argentina
| | - I Fernandez
- Hospital de Del Viso, Pcia, Buenos Aires, Argentina
| | - R Jaureguiberry
- Department of Hematology, Hospital de San Martín, La Plata, Argentina
| | | | - A Maro
- Hospital Alemán, CABA, Buenos Aires, Argentina
| | - G Zarate
- Hospital Pirovano, CABA, Buenos Aires, Argentina
| | - G Fernandez
- Hospital Pirovano, CABA, Buenos Aires, Argentina
| | - M Rapetti
- Hospital de Niños de San Justo, Pcia, Buenos Aires, Argentina
| | - A Degano
- Sanatorio General Sarmiento, Pcia, Buenos Aires, Argentina
| | - G Kantor
- Hospital Durand, CABA, Buenos Aires, Argentina
| | - A Albina
- Consultorio Particular, Mar Del Plata, Prov, Buenos Aires, Argentina
| | - M Alvarez Bollea
- Department of Hematology, Sanatorio Allende de Córdoba, Córdoba, Argentina
| | - H Arrocena
- Hospital Centenario, Gualeguychu, Entre Ríos, Argentina
| | - V Bacciedoni
- Department of Hematology, Hospital Lagomaggiore, Mendoza, Argentina
| | - F Del Rio
- Department of Hematology, Hospital Lagomaggiore, Mendoza, Argentina
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Masi L, Brandi ML. Gaucher disease: the role of the specialist on metabolic bone diseases. CLINICAL CASES IN MINERAL AND BONE METABOLISM : THE OFFICIAL JOURNAL OF THE ITALIAN SOCIETY OF OSTEOPOROSIS, MINERAL METABOLISM, AND SKELETAL DISEASES 2015; 12:165-9. [PMID: 26604943 PMCID: PMC4625774 DOI: 10.11138/ccmbm/2015.12.2.165] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
According to European legislation, a disease can be considered rare or "orphan" when it affects less than 1 subject of 2000 (1). Often these diseases affecting the pediatric age, are complex diseases and chronically debilitating and for this motive need the intervention of multidisciplinary skills specific. Among the rare disease as affecting the skeleton more than 400 are characterized by dysplastic changes of the skeleton (2). Alongside the disorders affecting the skeleton primitively, many systemic diseases can have a bone involvement. Among these, the Gaucher disease (GD), an heterogeneous lysosomal storage determined by hereditary enzyme deficiency of β-glucosidase. Patients with this disease have skeletal disorders of varying severity (Erlenmeyer flask deformity, lytic lesions and osteonecrosis, pathological fractures) that affects both the bone marrow, both mineralized bone with progressive damage of the tissue. The bone disease is the most debilitating of GD and can have a significant impact on the quality of life of patients. Thorough evaluations by monitoring biochemical markers of bone turnover and instrumental, with a quantitative and qualitative evaluation of the bone, are of fundamental importance to intervene early so they can prevent complications irreversible.
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Affiliation(s)
- Laura Masi
- Metabolic Bone Diseases Unit, University Hospital AOU-Careggi, Florence, Italy
| | - Maria Luisa Brandi
- Metabolic Bone Diseases Unit, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
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7
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Clarke LA, Hollak CEM. The clinical spectrum and pathophysiology of skeletal complications in lysosomal storage disorders. Best Pract Res Clin Endocrinol Metab 2015; 29:219-35. [PMID: 25987175 DOI: 10.1016/j.beem.2014.08.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Lysosomal storage disorders affect multiple organs including the skeleton. Disorders with prominent skeletal symptoms are type 1 and 3 Gaucher disease, the mucopolysaccharidoses, the glycoproteinoses and pycnodysostosis. Clinical manifestations range from asymptomatic radiographical evidence of bone pathology to overt bone crises (Gaucher), short stature with typical imaging features known as dysostosis multiplex (MPS), with spine and joint deformities (mucopolysaccharidoses, mucolipidosis), or osteopetrosis with pathological fractures (pynodysostosis). The pathophysiology of skeletal disease is only partially understood and involves direct substrate storage, inflammation and other complex alterations of cartilage and bone metabolism. Current treatments are enzyme replacement therapy, substrate reduction therapy and hematopoietic stem cell transplantation. However, effects of these interventions on skeletal disease manifestations are less well established and outcomes are highly dependent on disease burden at treatment initiation. It is now clear that adjunctive treatments that target skeletal disease are needed and should be part of future research agenda.
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Affiliation(s)
- Lorne A Clarke
- Department of Medical Genetics, Child and Family Research Institute, University of British Columbia, Vancouver, BC, Canada.
| | - Carla E M Hollak
- Department of Internal Medicine/Endocrinology and Metabolism, Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
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8
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[Cathepsin K as a biomarker of bone involvement in type 1 Gaucher disease]. Med Clin (Barc) 2015; 145:281-7. [PMID: 25662720 DOI: 10.1016/j.medcli.2014.11.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 11/11/2014] [Accepted: 11/20/2014] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVE Gaucher disease is an inherited disorder caused by deficit of acid β-glucocerebrosidase, responsible for the degradation of glucosylceramide to ceramide and glucose. Although the disorder is primarily hematologic, bone is the second most commonly affected structure. Cathepsin K (CATK) is an enzyme involved in bone remodelling process. It has been proposed that determination of its serum concentrations may provide additional information to other biomarkers. PATIENTS AND METHODS The study included 20 control subjects and 20 Gaucher type 1 patients from Andalusia and Extremadura regions. We analyzed the biomarkers of bone remodelling: the bone alkaline phosphatase (B-ALP), the N-terminal propeptide of type 1 procollagen (P1NP), the β carboxyterminal telopeptide of type 1 collagen (CTx) and the CATK through electrochemiluminescence and immunoassay techniques. RESULTS There is an increase in levels of CATK, CATK/P1NP and CATK/B-ALP ratios in type 1 Gaucher patients compared to the control group. Considering the existence of skeletal manifestations in the patient group, the CATK and CATK/P1NP ratio showed higher levels in patients with bone damage compared to those without it. CONCLUSIONS Although imaging studies are the gold standard for monitoring bone disease in type 1 Gaucher patients, the utility of CATK should be considered as a possible indicator of bone damage in these patients. Furthermore, this parameter can be used in the monitoring of the treatment of bone pathology.
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9
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Management of bone disease in Gaucher disease type 1: clinical practice. Adv Ther 2014; 31:1197-212. [PMID: 25515322 DOI: 10.1007/s12325-014-0174-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Indexed: 12/24/2022]
Abstract
Gaucher disease is a rare autosomal recessive disorder of glycosphingolipid metabolism resulting from deficient activity of the lysosomal enzyme beta-glucocerebrosidase that causes accumulation of glucosylceramide in tissue macrophage with damage to hematological, visceral, and skeletal organ systems. Severity and progression may vary independently among these domains, necessitating individualized therapy. Skeletal involvement is highly prevalent and often associated with intense pain, impaired mobility, and reduced quality of life. Enzyme replacement therapy improves parameters in all affected domains, but skeletal involvement requires longer treatment and higher dosages to obtain significant results. Despite numerous papers on bone complications in patients with Gaucher disease, there are no specific indications on how to assess properly bone involvement in such condition, the frequency of assessment, the use of markers for osteoblast and osteoclast activity, or the administration of bisphosphonates or other symptomatic drugs in adult and pediatric patients. Starting from a re-evaluation of cases with bone involvement, we have identified some common errors in the diagnostic approach and management. The aim of this paper was to propose a methodological and critical approach to the diagnosis, follow-up and treatment of bone disease in patients with Gaucher disease type 1.
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Marcucci G, Zimran A, Bembi B, Kanis J, Reginster JY, Rizzoli R, Cooper C, Brandi ML. Gaucher disease and bone manifestations. Calcif Tissue Int 2014; 95:477-94. [PMID: 25377906 DOI: 10.1007/s00223-014-9923-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 10/17/2014] [Indexed: 01/25/2023]
Abstract
Gaucher disease is a relatively rare metabolic disease caused by the inherited deficiency of the lysosomal enzyme glucocerebrosidase. Gaucher disease affects multiple organs, among which is the skeleton. Bone involvement occurs frequently in Gaucher disease, and is one of its most debilitating features, reducing the quality of life of patients. Bone status is an important consideration for treatment to ameliorate symptoms and reduce the risk of irreversible complications. We have conducted a systematic review of all the various aspects of Gaucher disease, focusing on different skeletal manifestations, pathophysiology of bone alterations, clinical symptoms, and current diagnostic and therapeutic approaches.
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Affiliation(s)
- Gemma Marcucci
- Head, Bone Metabolic Diseases Unit, Department of Surgery and Translational Medicine, University of Florence, Viale Pieraccini 6, 50139, Florence, Italy
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van Dussen L, Biegstraaten M, Dijkgraaf MG, Hollak CE. Modelling Gaucher disease progression: long-term enzyme replacement therapy reduces the incidence of splenectomy and bone complications. Orphanet J Rare Dis 2014; 9:112. [PMID: 25056340 PMCID: PMC4226965 DOI: 10.1186/s13023-014-0112-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Accepted: 07/04/2014] [Indexed: 01/31/2023] Open
Abstract
Long-term complications and associated conditions of type 1 Gaucher Disease (GD) can include splenectomy, bone complications, pulmonary hypertension, Parkinson disease and malignancies. Enzyme replacement therapy (ERT) reverses cytopenia and reduces organomegaly. To study the effects of ERT on long-term complications and associated conditions, the course of Gaucher disease was modelled. The cohort consisted of all diagnosed GD patients in the Netherlands. Mutually exclusive disease states were defined as ‘asymptomatic’, ‘signs/symptoms’, ‘recovery’, ‘splenectomy’, ‘bone complication’, ‘multiple complications’ and ‘malignancy’. A natural history (NH) cohort was delineated based upon historical data on Dutch patients before ERT was available. Cumulative incidence curves were composed for progression from each disease state to the next. Two scenarios were applied for the ERT cohort: time to complications was calculated from A. start of ERT; B. entering the previous disease state. Median time for the development of signs and/or symptoms was 30.1 years (N = 73). In the NH cohort (N = 42), 9% had developed a bone complication after 10 years in the signs/symptoms phase, while 21% had undergone a splenectomy. In the ERT cohort (N = 29 (A), N = 28 (B)), 12% (A) or 4% (B) had developed a bone complication after 10 years in this phase and no patient was splenectomized. No patients in the NH cohort recovered, compared to 50% in the ERT cohort after 3.6 years (N = 28 (A)) or 22.4 years (N = 27 (B)) of treatment. Median time from a first to a second complication was 11 years in the NH cohort (N = 31), whereas 16 respectively 14 percent had developed a second complication after 10 years in the ERT cohort (N = 17, scenario A/B). Fourteen percent (scenario A/B) developed an associated malignancy after 10 years in the phase ‘multiple complications’ (N = 23). Associated malignancies occurred almost exclusively in advanced disease stages, therefore it is suggested that ERT reduces their incidence Long-term ERT for GD can reduce the incidence of splenectomy and bone complications. As ERT prevents progression to more advanced stages of GD it will most likely result in a reduction of associated malignancies.
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Abstract
Gaucher disease is an inborn error of metabolism due to a deficiency of the lysosomal enzyme glucocerebrosidase. As a result of this deficiency, the substrate glucocerebroside accumulates in the liver, spleen, bone and bone marrow. Bone involvement can lead to abnormalities in bone growth, bone remodeling, bone infarcts, aseptic necrosis, osteonecrosis, increased fracture risk and lytic bone lesions. Patients may experience bone pain and bone crises related to bone infarcts. There is evidence of abnormal bone metabolism in both bone resorption and bone formation based upon biochemical abnormalities found in patients. In addition, both immunological and coagulation abnormalities have in part been implicated in the causation of bone disease. Treatment with enzyme replacement therapy and substrate reduction therapy has led to improvement in both the symptoms and the radiographic abnormalities seen in these patients. It is unknown whether these treatments lower fracture risk.
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Affiliation(s)
- Barry E Rosenbloom
- a Cedars-Sinai Medical Center, Tower Hematology Oncology, 9090 Wilshire Blvd, #200, Beverly Hills, CA 90211, USA
| | - Neal J Weinreb
- b University Research Foundation for Lysosomal Diseases, Dr John T. Macdonald Foundation, University of Miami Miller School of Medicine, 8170 Royal Palm Blvd, Coral Springs, FL 33065, USA
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Mucci JM, Suqueli García F, de Francesco PN, Ceci R, Di Genaro S, Fossati CA, Delpino MV, Rozenfeld PA. Uncoupling of osteoblast-osteoclast regulation in a chemical murine model of Gaucher disease. Gene 2013; 532:186-91. [PMID: 24076352 DOI: 10.1016/j.gene.2013.09.072] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 09/16/2013] [Accepted: 09/18/2013] [Indexed: 01/18/2023]
Abstract
Gaucher disease (GD) is caused by mutations in the GBA gene that confer a deficient level of activity of glucocerebrosidase (GCase). This deficiency leads to accumulation of the glycolipid glucocerebroside in the lysosomes of cells of monocyte/macrophage system. Type I GD is the mildest form and is characterized by the absence of neuronopathic affection. Bone compromise in Gaucher disease patients is the most disabling aspect of the disease. However, pathophysiological aspects of skeletal alterations are still poorly understood. The homeostasis of bone tissue is maintained by the balanced processes of bone resorption by osteoclasts and formation by osteoblasts. We decided to test whether bone resorption and/or bone formation could be altered by the use of a chemical in vitro murine model of Gaucher disease. We used two sources of cells from monocyte/macrophages lineage isolated from normal mice, splenocytes (S) and peritoneal macrophages (PM), and were exposed to CBE, the inhibitor of GCase (S-CBE and PM-CBE, respectively). Addition of both conditioned media (CM) from S-CBE and PM-CBE induced the differentiation of osteoclasts precursors from bone marrow to mature and functional osteoclasts. TNF-α could be one of the factors responsible for this effect. On the other hand, addition of CM to an osteoblast cell culture resulted in a reduction in expression of alkaline phosphatase and mineralization process. In conclusion, these results suggest implication of changes in both bone formation and bone resorption and are consistent with the idea that both sides of the homeostatic balance are affected in GD.
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Affiliation(s)
- Juan M Mucci
- LISIN, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata 1900, Argentina
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Reed M, Baker RJ, Mehta AB, Hughes DA. Enhanced differentiation of osteoclasts from mononuclear precursors in patients with Gaucher disease. Blood Cells Mol Dis 2013; 51:185-94. [PMID: 23707505 DOI: 10.1016/j.bcmd.2013.04.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Accepted: 04/12/2013] [Indexed: 01/23/2023]
Abstract
Gaucher disease (GD) is an autosomal recessive disorder caused by deficiency of β-glucocerebrosidase. Storage of glucosylceramide in reticuloendothelial cells results in multiorgan pathology including bone disease. Established skeletal disease may remain problematic despite Gaucher-specific treatment. Both osteopenia and osteonecrosis have been described but the underlying pathophysiology, in particular the role of monocyte-derived osteoclasts is not well defined. The objective of this study was to explore the effect of glucocerebrosidase deficiency, inhibition and replacement on osteoclast development and function. In cultures derived from GD patients, or where GBA was chemically inhibited multinucleate giant cells expressing markers of osteoclast differentiation occurred earlier and in greater numbers compared to normal controls and the functional capacity of osteoclasts for bone resorption was enhanced. Increases in osteoclast number and activity correlated with radiological markers of active bone disease. Abnormalities were reversed by addition of specific therapies and were attenuated by co-culture with cells derived from healthy controls (HCs). Numbers of osteoblast lineage cells in the peripheral blood were mismatched to osteoclast precursors indicating uncoupling of osteoblast-osteoclast regulation which may further impact on bone remodelling. Elucidation of the underlying mechanisms of these changes will suggest rational therapies for the most disabling aspect of this condition.
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Affiliation(s)
- M Reed
- Lysosomal Storage Disorders Unit, Department of Haematology, Royal Free Hospital and University College, London, UK
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15
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Giuffrida G, Cingari MR, Parrinello N, Romano A, Triolo A, Franceschino M, Di Raimondo F. Bone turnover markers in patients with type 1 Gaucher disease. Hematol Rep 2012; 4:e21. [PMID: 23355939 PMCID: PMC3555209 DOI: 10.4081/hr.2012.e21] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 07/03/2012] [Accepted: 09/10/2012] [Indexed: 01/31/2023] Open
Abstract
Bone complications occur frequently in Gaucher disease (GD) and reduce the quality of life of these patients. Skeletal involvement is an important indication for treatment to ameliorate symptoms and reduce the risk of irreversible and debilitating disease. Bone biomarkers have been used to assess disease status and the response to therapy in a number of bone disorders. Here, we examine the literature for evidence of abnormalities in bone turnover markers in patients with type 1 GD to assess whether they might be useful for the assessment of bone involvement in GD. We have found that bone biomarkers in GD show highly variable results which do not currently support their routine use for clinical assessment of bone status, as an indication for therapy initiation, or for monitoring the response to therapy. A greater understanding of bone markers and their relation to the bone manifestations of GD is required.
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Affiliation(s)
- Gaetano Giuffrida
- Department of Clinical and Molecular Biomedicine, Division of Hematology, University of Catania, Ospedale Ferrarotto, Catania, Italy
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Ciana G, Deroma L, Franzil AM, Dardis A, Bembi B. Long-term bone mineral density response to enzyme replacement therapy in a retrospective pediatric cohort of Gaucher patients. J Inherit Metab Dis 2012; 35:1101-6. [PMID: 22441841 DOI: 10.1007/s10545-012-9476-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 02/28/2012] [Accepted: 03/05/2012] [Indexed: 11/27/2022]
Abstract
Osteopenia is described as a relevant sign of bone involvement in Gaucher disease (GD) both in pediatric and adult patients. Furthermore, abnormal bone metabolism is considered to play a role in growth and pubertal delay. To analyze the long-term effect of enzyme replacement therapy (ERT) on bone mineral density (BMD), a retrospective observational study was conducted in a cohort of 18 GD pediatric patients (13 males, 5 females; median age 9.2 years). They received biweekly infusions of 20-60 IU/kg of alglucerase/imiglucerase. Clinical, laboratory and imaging parameters were evaluated every 2 years. According to the International Society of Clinical Densitometry guidelines, a Z-score ≤ -2.0 was considered pathological. Nine patients (group P0) began ERT during infancy and nine (group P1) during puberty. At baseline, in three patients (16.6 %; 1P0, 2P1) Z-score was ≤ -2.0 (range -2.47 to -2.25). In patient P0 it normalized after 2 years, while in the 2P1 patients (splenectomized siblings) it persisted abnormal. The remaining 15 patients (83.4 %) always presented a normal value. In group P0, Z-score improved in infancy but showed a significant decrease during puberty, on the contrary it constantly improved in group P1. Furthermore, at baseline group P0 showed a higher median Z-score than group P1: 0.79 (0.38; 1.50) and -1.61 (-2.25; -1.56) respectively. The use of correct BMD standards to interpret bone loss during pediatric age suggests a limited significance of bone loss in these patients. Moreover, the persistence of residual disease activity may affect normal bone growth during puberty in GD populations.
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Affiliation(s)
- Giovanni Ciana
- Regional Coordinator Centre for Rare Diseases, University Hospital Santa Maria della Misericordia, Piazzale Santa Maria della Misericordia 15, 33100, Udine, Italy.
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Gaucher disease: outcome following total hip replacements and effect of enzyme replacement therapy in a cohort of UK patients. Hip Int 2012; 21:665-71. [PMID: 22101622 DOI: 10.5301/hip.2011.8826] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/14/2011] [Indexed: 02/04/2023]
Abstract
Only a limited number of reports of total hip replacements (THRs) in patients with Gaucher disease (GD) have been published, with the majority showing high rates of early aseptic loosening as well as an increased number of peri-operative complications. We present a series of twelve THRs in nine affected patients, with a mean age of 39 years at the time of surgery (median 37 years; range 27-60 years). We examine the medium- to long-term results and present the outcome scores, survival, and assess the effect of enzyme replacement therapy (ERT). Four hips (33.3%) required revision for aseptic loosening at a mean time of 11.5 years. There was no significant difference in survival between the group on ERT at the time of surgery and group not on ERT. Those on ERT did, however, have fewer peri-operative complications and there was a trend to better outcome scores. Five of the 12 THRs were performed when the diagnosis of GD was unknown and all of these had early complications.?Our results show better survival of THRs in patients with GD than previously thought. The use of ERT pre-operatively did not have an effect on survival, nor outcome scores, but did reduce the peri-operative complication rate. Those not on ERT at the time of surgery were commenced on it at some point in their treatment (at an average of 8.6 years following THR) and we believe the use of ERT, at any time in the treatment, could have contributed to the improved survival seen in our series compared to historical results in the literature.
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Abstract
The scientific and therapeutic development of imiglucerase (Cerezyme(®)) by the Genzyme Corporation is a paradigm case for a critical examination of current trends in biotechnology. In this article the authors argue that contemporary interest in treatments for rare diseases by major pharmaceutical companies stems in large part from an exception among rarities: the astonishing commercial success of Cerezyme. The fortunes of the Genzyme Corporation, latterly acquired by global giant Sanofi SA, were founded on the evolution of a blockbuster therapy for a single but, as it turns out, propitious ultra-orphan disorder: Gaucher disease.
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Affiliation(s)
- Patrick B Deegan
- Department of Medicine, University of Cambridge, Lysosomal Disorders Unit, Addenbrooke's NHS Foundation Hospitals Trust, Cambridge, UK.
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19
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Miscellaneous non-inflammatory musculoskeletal conditions. Gaucher disease and bone. Best Pract Res Clin Rheumatol 2012; 25:665-81. [PMID: 22142746 DOI: 10.1016/j.berh.2011.10.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 10/13/2011] [Indexed: 01/27/2023]
Abstract
Gaucher disease (GD) is an inherited lysosomal storage disorder affecting multiple organs. Non-neuronopathic GD, the most common form, can present with hepatosplenomegaly, anaemia, bleeding tendencies, thrombocytopenia, skeletal pathologies, growth retardation and, in severe cases, with pulmonary disease. The bone manifestations include bone infarcts, avascular bone necrosis, lytic lesions, osteosclerosis, fractures due to osteoporosis and, rarely, acute osteomyelitis. Bone pain of varying intensity, fractures and joint collapses increase the patients' morbidity and impair their mobility and quality of life. Currently available therapies - enzyme replacement therapy and substrate reduction therapy - have shown to improve blood count and the visceral manifestations within a short time. Beneficial effects have also been documented on bone pain, bone crises and the extent of osteoporosis. The article focusses on the bone pathologies of GD including its pathophysiology, current diagnostics, clinical management and therapeutic effects of enzyme replacement therapy, substrate reduction therapy and bone-specific therapies.
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Abstract
INTRODUCTION The search for surrogate biomarkers of osteonecrosis, a disabling complication of Gaucher disease, has intensified in the last decade. Biomarkers that predict osteonecrosis and monitor the effectiveness of therapies would improve clinical practice and enrich the molecular exploration of this disorder. AREAS COVERED Here we discuss advances in biomarker research with special reference to those biomarkers associated with Gaucher disease and investigated in the context of enzyme therapy. Much progress has been made in the diversification of treatment for the condition and several biomarker molecules, which may ultimately improve risk assessment for osteonecrosis, have been identified. EXPERT OPINION The discovery of prospective biomarkers of osteonecrosis such as CCL18/PARC, CXCL8/IL-8, CCL5/RANTES, CCL3/MIP-1α, CCL4/MIP-1β, particularly during recurrent episodes occurring despite enzyme treatment, has the potential radically to change practices in the management of Gaucher disease and should improve therapeutic monitoring and prognostic evaluation. Ultimately, exploration of this field will provide the basis for a refined mechanistic understanding of pathogenesis.
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Affiliation(s)
- Elena V Pavlova
- University of Cambridge, Addenbrroke's Hospital , Department of Medicine , Lysosomal Disorders Unit Box 135, Cambridge , UK
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Goker-Alpan O. Therapeutic approaches to bone pathology in Gaucher disease: past, present and future. Mol Genet Metab 2011; 104:438-47. [PMID: 21889384 DOI: 10.1016/j.ymgme.2011.08.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 08/05/2011] [Accepted: 08/05/2011] [Indexed: 12/20/2022]
Abstract
Enzyme replacement therapy (ERT) is effective for the treatment of the systemic manifestations of Gaucher disease (GD) and can have a significant impact on skeletal manifestations. Bone involvement is broad and can occur in otherwise clinically asymptomatic individuals. The heterogeneity in GD-related bone disease may implicate multiple pathological processes such as disruption of coordinated bone cell activity, in addition to the physical impact of Gaucher cells causing vascular occlusion. Accumulated data suggests that earlier treatment initiation decreases skeletal complications and that bone disease may require a longer duration of treatment and higher dose than is necessary for organ involvement and hematopoietic manifestations. However, in some patients, bone manifestations persist and even worsen despite ERT, regardless of dose or duration of treatment. Treating skeletal disease should be considered of equal importance as treating visceral and hematologic manifestations. When treatment decisions involve multiple enzyme preparations and other therapeutic modalities such small molecules, the choice should be tailored on an individual basis with continuing evaluation.
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Affiliation(s)
- Ozlem Goker-Alpan
- Lysosomal Disorders Research and Treatment Unit, Center for Clinical Trials, Springfield, VA 22152, USA.
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22
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An overview on bone manifestations in Gaucher disease. Wien Med Wochenschr 2010; 160:609-24. [DOI: 10.1007/s10354-010-0841-y] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Accepted: 10/05/2010] [Indexed: 12/12/2022]
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Osteopenia in Gaucher disease develops early in life: response to imiglucerase enzyme therapy in children, adolescents and adults. Blood Cells Mol Dis 2010; 46:66-72. [PMID: 21112800 DOI: 10.1016/j.bcmd.2010.10.011] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2010] [Revised: 10/10/2010] [Accepted: 10/10/2010] [Indexed: 11/22/2022]
Abstract
BACKGROUND In Gaucher disease (GD), acid-β-glucosidase (GBA1) gene mutations result in defective glucocerebrosidase and variable combinations of hematological, visceral, and diverse bone disease. Osteopenia is highly prevalent, but its age of onset during the natural course of GD is not known. It is also unclear if the degree of improvement in osteopenia, secondary to imiglucerase enzyme therapy, differs by the age of the patient. OBJECTIVE We hypothesized that osteopenia develops early in life, during the natural course of type 1 Gaucher disease (GD1), and that its response to treatment is maximal during this period. METHODS We examined data from the International Collaborative Gaucher Group (ICGG) Gaucher Registry of patients treated with imiglucerase between the ages of 5 and 50 years. Lumbar spine bone mineral density (BMD) (determined by dual-energy X-ray absorptiometry (DXA) and expressed as Z-scores) at baseline and for up to 10 years on imiglucerase were analyzed in children (ages ≥ 5 to <12 years), adolescents (≥ 12 to <20 years), young adults (≥ 20 to < 30 years), and older adults (≥ 30 to < 50 years). BMD was correlated with other disease characteristics. Pre-treatment, descriptive statistics were applied to 5-year age categories. Non-linear mixed effects regression models were used to analyze DXA Z-scores over time after treatment with imiglucerase. RESULTS Pre-treatment, low BMD was prevalent in all age groups, most strikingly in adolescents. DXA Z-scores were at or below -1 in 44% of children (n=43), 76% of adolescents (n=41), 54% of young adults (n=56) and 52% of older adults (n=171). The most common GBA1 genotype was N370S heteroallelic. Baseline hematological and visceral manifestations in the 4 age groups were similar. In children with DXA Z-scores ≤-1 at baseline, imiglucerase therapy for 6 years resulted in improvement of mean DXA Z-scores from -1.38 (95% CI -1.73 to -1.03) to -0.73 (95% CI -1.25 to -0.21); in young adults DXA Z-scores improved from -1.95 (95% CI -2.26 to -1.64) to -0.67 (95% CI -1.09 to -0.26). BMD also improved in older adults, but the magnitude of the improvement was lower compared to younger patients. CONCLUSIONS Low bone density is common in GD1 with the highest prevalence rate in adolescence, a developmental period critical to attainment of peak bone mass. Imiglucerase results in amelioration of osteopenia in all age groups, with the greatest improvements in younger patients.
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Piran S, Amato D. Gaucher disease: a systematic review and meta-analysis of bone complications and their response to treatment. J Inherit Metab Dis 2010; 33:271-9. [PMID: 20336376 DOI: 10.1007/s10545-010-9071-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Revised: 01/31/2010] [Accepted: 02/04/2010] [Indexed: 12/25/2022]
Abstract
Type 1 Gaucher disease (GD1) is an inherited lysosomal storage disease, which is often managed by enzyme replacement therapy (ERT). The bone response to ERT is usually slower than visceral and hematological responses. There is uncertainty as to whether an increase in the dosage of ERT has a beneficial effect. The aim of our study was to determine whether or not there is sufficient evidence to make a definitive statement about the effects of ERT and substrate reduction therapy (SRT) on bone marrow infiltration and bone mineral density (BMD) in GD1. We conducted a systematic review of all studies examining the effects of ERT and SRT on bony complications of GD1 published before July 2008. The studies were identified by a computerized search with use of Medline, Embase, The Cochrane Database of Systematic Reviews, The Cochrane Central Register of Controlled Trials (CCTR), and bibliographies of papers subsequently retrieved from the search. Three hundred studies were grouped according to whether they deal with the natural history of GD1 or therapeutic issues, and 17 studies were included in the review. The results from our systematic review suggest that further investigations, such as better analysis of the Gaucher Registry, are needed on the effects of ERT and SRT on bony complications of GD1. Studies on the effects of the newly identified velaglucerase and the plant-derived glucocerebrosidase on bony complications of GD1 are also needed.
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Affiliation(s)
- Siavash Piran
- Department of Medicine, Mount Sinai Hospital, University of Toronto, Suite 438, Toronto, ON, Canada
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25
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Greenwood A, Elstein D, Zimran A, Altarescu G. Effect of vitamin D receptor (VDR) genotypes on the risk for osteoporosis in type 1 Gaucher disease. Clin Rheumatol 2010; 29:1037-41. [DOI: 10.1007/s10067-010-1464-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 03/09/2010] [Accepted: 04/07/2010] [Indexed: 11/30/2022]
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Schaeverbeke T. Conséquences ostéo-articulaires de la maladie de Gaucher et efficacité thérapeutique de l’imiglucérase sur la masse osseuse chez l’adulte. Revue de la littérature. Presse Med 2009; 38 Suppl 2:2S38-41. [DOI: 10.1016/s0755-4982(09)73667-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Briot K. Prise en charge de l’ostéopathie fragilisante au cours de la maladie de Gaucher. Presse Med 2009; 38 Suppl 2:2S42-5. [DOI: 10.1016/s0755-4982(09)73668-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Grabowski GA, Kacena K, Cole JA, Hollak CEM, Zhang L, Yee J, Mistry PK, Zimran A, Charrow J, vom Dahl S. Dose-response relationships for enzyme replacement therapy with imiglucerase/alglucerase in patients with Gaucher disease type 1. Genet Med 2009; 11:92-100. [PMID: 19265748 DOI: 10.1097/gim.0b013e31818e2c19] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
PURPOSE To determine whether enzyme therapy with imiglucerase/alglucerase demonstrates dose-response relationships with doses and disease parameters used in routine clinical practice for Gaucher disease type 1 patients. METHODS Analyses included all patients with Gaucher disease type 1 on enzyme therapy and with intact spleens in the large observational database of the International Collaborative Gaucher Group Gaucher Registry. Propensity scoring was used to match patients between enzyme therapy dose groups categorized as Group A (5 U to <29 U/kg/2 weeks), Group B (29 U to <48 U/kg/2 weeks), Group C (48 U to <75 U/kg/2 weeks). Hemoglobin concentration, platelet count, and hepatic and splenic volumes were assessed after initiation of enzyme therapy using nonlinear mixed effects models. The maximal effect (Emax) and half-time to Emax (T50) of enzyme therapy for each parameter were compared across dosing groups. RESULTS Propensity score matching resulted in three comparable groups of 122 patients each (enzyme therapy in Groups A, B, and C). Dose-response relationships were found with regard to Emax and T50 over 96 months for each disease parameter. CONCLUSIONS Enzyme therapy with imiglucerase/alglucerase displays a dose-dependent improvement in hematological and visceral parameters in Gaucher disease type 1 patients. Group C displayed greater treatment effects than Groups A or B. Propensity score matching and nonlinear mixed effects model analyses provide a prototype for assessment of treatment outcomes based on observational data from international rare disease registries.
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Affiliation(s)
- Gregory A Grabowski
- Cincinnati Children's Hospital Medical Center, Division of Human Genetics, Cincinnati, Ohio 45229-3039, USA.
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29
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Mariani G, Perri M, Erba PA. Bone disease scoring and management of Gaucher disease. Clin Ther 2009. [DOI: 10.1016/s0149-2918(09)80017-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Elstein D, Zimran A. Using the International Gaucher Disease Registry data: can we devise a virtuous circle for treated patients? Am J Hematol 2008; 83:887-9. [PMID: 18980272 DOI: 10.1002/ajh.21306] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Mikosch P, Reed M, Baker R, Holloway B, Berger L, Mehta AB, Hughes DA. Changes of bone metabolism in seven patients with Gaucher disease treated consecutively with imiglucerase and miglustat. Calcif Tissue Int 2008; 83:43-54. [PMID: 18553043 DOI: 10.1007/s00223-008-9143-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2007] [Accepted: 05/06/2008] [Indexed: 12/20/2022]
Abstract
Bone manifestations are frequent in Gaucher disease (GD), the most prevalent lysosomal storage disorder. Currently, therapy with enzyme replacement (ERT) or substrate reduction (SRT) is available. We investigated changes of laboratory parameters associated with bone metabolism in GD patients switching from ERT to SRT. Seven GD patients consecutively treated with ERT and SRT were studied. All patients had different degrees of bone involvement. Laboratory results were acquired at the time of change from ERT to SRT (0 months) and while on SRT (6 months, 12-18 months). Markers of GD activity remained stable or showed statistically insignificant increases. Six patients had stable skeletal manifestations and reported no bone-associated symptoms. One patient presented progressive bone manifestations on magnetic resonance imaging and experienced increasing bone pain. Osteocalcin, alkaline phosphatase, and C-terminal telopeptide of collagen I were initially within the lower part of the normal range and decreased during SRT (alkaline phosphatase P = 0.0169, osteocalcin nonsignificant, C-terminal telopeptide of collagen I nonsignificant). Tartrate-resistant acid phosphatase 5b was initially normal or slightly increased, and macrophage colony-stimulating factor was within the normal lower range; both parameters remained stable. Interleukin-6 was elevated only in the patient with progressive bone disease. Macrophage inflammatory protein 1alpha (MIP-1alpha) was elevated without change after switching to SRT. MIP-1beta was within the normal range, and no values were above 85 ng/mL, indicative of active skeletal disease. From a clinical and metabolic point of view, most skeletal manifestations and bone-associated laboratory parameters remain stable after switch from ERT to SRT.
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Affiliation(s)
- P Mikosch
- Department of Nuclear Medicine and Endocrinology, PET Center, State Hospital Klagenfurt, St. Veiterstr. 47, 9020, Klagenfurt, Austria.
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Cox TM, Aerts JMFG, Belmatoug N, Cappellini MD, vom Dahl S, Goldblatt J, Grabowski GA, Hollak CEM, Hwu P, Maas M, Martins AM, Mistry PK, Pastores GM, Tylki-Szymanska A, Yee J, Weinreb N. Management of non-neuronopathic Gaucher disease with special reference to pregnancy, splenectomy, bisphosphonate therapy, use of biomarkers and bone disease monitoring. J Inherit Metab Dis 2008; 31:319-36. [PMID: 18509745 DOI: 10.1007/s10545-008-0779-z] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2007] [Revised: 01/28/2008] [Accepted: 02/19/2008] [Indexed: 12/21/2022]
Abstract
Enzyme replacement was introduced as treatment for non-neuronopathic Gaucher disease more than 15 years ago. To ensure the best use of this costly ultra-orphan agent, a systematic disease management approach has been proposed by an international panel; this includes the development, by consensus, of achievable treatment goals. Here we critically review these goals and monitoring guidelines and incorporate emerging experience of the disease in the therapeutic era, as well as contemporary clinical research. This review makes recommendations related specifically to the management of pregnancy; the appropriate use of splenectomy and bisphosphonate treatment; the relevance of biochemical markers to disease monitoring; and the use of semi-quantitative methods for assessing bone marrow infiltration. In addition, we identify key areas for development, including the requirement for a validated index of disease severity; the need to correlate widely used biomarkers with long-term disease outcomes, and the desirability of establishing agreed standards for monitoring of bone disease particularly in infants and children with Gaucher disease.
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Affiliation(s)
- T M Cox
- Department of Medicine, University of Cambridge, Addenbrooke's NHS Foundation Hospitals Trust, Cambridge, UK.
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Sims KB, Pastores GM, Weinreb NJ, Barranger J, Rosenbloom BE, Packman S, Kaplan P, Mankin H, Xavier R, Angell J, Fitzpatrick MA, Rosenthal D. Improvement of bone disease by imiglucerase (Cerezyme) therapy in patients with skeletal manifestations of type 1 Gaucher disease: results of a 48-month longitudinal cohort study. Clin Genet 2008; 73:430-40. [PMID: 18312448 PMCID: PMC2440418 DOI: 10.1111/j.1399-0004.2008.00978.x] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Sims KB, Pastores GM, Weinreb NJ, Barranger J, Rosenbloom BE, Packman S, Kaplan P, Mankin H, Xavier R, Angell J, Fitzpatrick MA, Rosenthal D. Improvement of bone disease by imiglucerase (Cerezyme) therapy in patients with skeletal manifestations of type 1 Gaucher disease: results of a 48-month longitudinal cohort study. Clin Genet 2008: 73: 430–440. © Blackwell Munksgaard, 2008 Progressive skeletal disease accounts for some of the most debilitating complications of type 1 Gaucher disease. In this 48-month, prospective, non-randomized, open-label study of the effect of enzyme replacement therapy on bone response, 33 imiglucerase-naïve patients (median age 43 years with one or more skeletal manifestations such as osteopenia, history of bone crisis, or other documented bone pathology) received imiglucerase 60 U/kg/2 weeks. Substantial improvements were observed in bone pain (BP), bone crises (BC), and bone mineral density (BMD). Improvements in BP were observed at 3 months (p < 0.001 vs baseline) and continued progressively throughout the study, with 39% of patients reporting pain at 48 months vs 73% at baseline. Eleven of the 13 patients with a pre-treatment history of BC had no recurrences. Biochemical markers for bone formation increased; markers for bone resorption decreased. Steady improvement of spine and femoral neck BMD, measured using dual-energy X-ray absorptiometry was noted. Mean Z score for spine increased from −0.72 ± 1.302 at baseline to near-normal levels (−0.09 ± 1.503) by month 48 (p = 0.042) and for femoral neck from −0.59 ± 1.352 to −0.17 ± 1.206 (p = 0.035) at month 36. This increase was sustained at 48 months. With imiglucerase treatment, patients should anticipate resolution of BC, rapid improvement in BP, increases in BMD, and decreased skeletal complications.
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Affiliation(s)
- K B Sims
- Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA.
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Javier RM, Hachulla E. Atteintes ostéoarticulaires de la maladie de Gaucher chez l'adulte: de la physiopathologie au traitement. Presse Med 2007; 36:1971-84. [PMID: 17498916 DOI: 10.1016/j.lpm.2007.04.012] [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] [Indexed: 01/06/2023] Open
Abstract
Gaucher disease frequently has severe osteoarticular manifestations that may be disabling. Ischemic phenomena cause the most serious complications and lead to irreversible lesions. Aseptic osteonecrosis of the hip is the most disabling complication; it causes intense early bone pain and often joint collapse and secondary osteoarthritis in young adults. Localized or systemic bone fragility explains osteopenia, osteoporosis, and fractures (vertebral collapse with irreversible kyphosis causing chronic morbidity). Although no double-blind randomized studies have assessed the bone effects of enzyme replacement therapy, it has been shown effective in reducing bone pain in about half of all treatment-naive patients within 1 to 2 years and in improving bone mineral density after 3 years. In open-label trials, substrate reduction therapy (miglustat) reduced both bone pain and bone marrow infiltration. Specific treatment for bone fragility, with bisphosphonates for example, should be considered after rigorous individualized evaluation and assessment of other risk factors.
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Affiliation(s)
- Rose-Marie Javier
- Service de Rhumatologie, Hôpital de Hautepierre, Avenue Molière, Strasbourg, France.
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Hachulla É, Javier RM. Physiopathologie et prise en charge des atteintes osseuses de la maladie de Gaucher chez l’adulte de type 1. Rev Med Interne 2007; 28 Suppl 2:S180-2. [DOI: 10.1016/s0248-8663(07)78878-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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van Breemen MJ, de Fost M, Voerman JSA, Laman JD, Boot RG, Maas M, Hollak CEM, Aerts JM, Rezaee F. Increased plasma macrophage inflammatory protein (MIP)-1α and MIP-1β levels in type 1 Gaucher disease. Biochim Biophys Acta Mol Basis Dis 2007; 1772:788-96. [PMID: 17499484 DOI: 10.1016/j.bbadis.2007.04.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2007] [Revised: 04/03/2007] [Accepted: 04/03/2007] [Indexed: 11/25/2022]
Abstract
Pancytopenia, hepatosplenomegaly and skeletal complications are hallmarks of Gaucher disease. Monitoring of the outcome of therapy on skeletal status of Gaucher patients is problematic since currently available imaging techniques are expensive and not widely accessible. The availability of a blood test that relates to skeletal manifestations would be very valuable. We here report that macrophage inflammatory protein (MIP)-1alpha and MIP-1beta, both implicated in skeletal complications in multiple myeloma (MM), are significantly elevated in plasma of Gaucher patients. Plasma MIP-1alpha of patients (median 78 pg/ml, range 21-550 pg/ml, n=48) is elevated (normal median 9 pg/ml, range 0-208 pg/ml, n=39). Plasma MIP-1beta of patients (median 201 pg/ml, range 59-647 pg/ml, n=49) is even more pronouncedly increased (normal median 17 pg/ml, range 1-41 pg/ml, n=39; one outlier: 122 pg/ml). The increase in plasma MIP-1beta levels of Gaucher patients is associated with skeletal disease. The plasma levels of both chemokines decrease upon effective therapy. Lack of reduction of plasma MIP-1beta below 85 pg/ml during 5 years of therapy was observed in patients with ongoing skeletal disease. In conclusion, MIP-1alpha and MIP-1beta are elevated in plasma of Gaucher patients and remaining high levels of MIP-1beta during therapy seem associated with ongoing skeletal disease.
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Affiliation(s)
- Mariëlle J van Breemen
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Meibergdreef 15, 1105AZ, Amsterdam, The Netherlands
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Charrow J, Dulisse B, Grabowski GA, Weinreb NJ. The effect of enzyme replacement therapy on bone crisis and bone pain in patients with type 1 Gaucher disease. Clin Genet 2007; 71:205-11. [PMID: 17309642 DOI: 10.1111/j.1399-0004.2007.00769.x] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effect of enzyme replacement therapy (ERT) on bone crisis and bone pain was investigated in patients with Gaucher disease (GD) type 1 followed over 4 years. Data from the International Collaborative Gaucher Group Gaucher Registry were used. Only patients with bone crisis and/or bone pain data for 1 year prior to ERT, and for each of 3 years after the start of ERT, were included. Bone crises were reported in 17% of patients during the year before starting ERT. The frequencies of bone crises decreased to 5%, <1% and 3% for 1, 2, and 3 years after initiation of treatment, respectively (p < 0.0001). Bone pain followed a similar pattern of response. Bone pain was reported in 49% of patients the year before treatment and decreased to 30% in the first year, 29% in the second year, and 30% in the third year of ERT (p < 0.0001). ERT is associated with a reduction in bone crisis and bone pain in patients with GD type 1 . This study shows that significant improvements in symptoms of skeletal disease are achievable clinical outcomes and treatment goals in GD type 1.
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Affiliation(s)
- J Charrow
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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Wenstrup RJ, Kacena KA, Kaplan P, Pastores GM, Prakash-Cheng A, Zimran A, Hangartner TN. Effect of enzyme replacement therapy with imiglucerase on BMD in type 1 Gaucher disease. J Bone Miner Res 2007; 22:119-26. [PMID: 17032149 DOI: 10.1359/jbmr.061004] [Citation(s) in RCA: 113] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
UNLABELLED The effect of ERT with imiglucerase on BMD in type 1 GD was studied using BMD data from the International Collaborative Gaucher Group Gaucher Registry. Data were analyzed for 160 untreated patients and 342 ERT-treated patients. Imiglucerase significantly improves BMD in patients with GD, with 8 years of ERT leading to normal BMD. INTRODUCTION The objective was to determine the effect of enzyme replacement therapy (ERT; Cerezyme, imiglucerase) on BMD in type 1 Gaucher disease (GD). MATERIALS AND METHODS The study population included all adults (men, 18-70 years; women, 18-50 years) enrolled in the International Collaborative Gaucher Group (ICGG) Gaucher Registry for whom lumbar spine BMD measurements were available. BMD data with up to 8 years of follow-up were analyzed for 160 patients who received no ERT and 342 patients treated with ERT alone. BMD was assessed by DXA of the lumbar spine. Z scores for patients with GD were compared with a reference population. From the model's estimate, percent of patients by age and sex with osteoporosis (T score < or = -2.5) were calculated. RESULTS DXA Z scores for patients with GD in the no ERT (untreated) group were significantly below normal (y intercept = -0.80 Z score units, p < 0.001) and remained approximately 1 SD below the reference population over time (slope = -0.010 Z score units per year, p = 0.68). The DXA Z scores for patients with GD who received ERT at a dose of 60 U/kg/2 weeks were significantly lower than the reference population at baseline (y-intercept = -1.17 Z score units, p < 0.001), but improved significantly over time (slope = +0.132 Z score units per year, p < 0.001). A significant dose-response relationship was noted for the ERT group, with the slopes for the three main dosing groups of 15, 30, and 60 U/kg/2 weeks of +0.064, +0.086, and +0.132 Z score units per year, respectively. The BMD of patients with GD treated with ERT increased to -0.12 (60 U/kg/2 weeks), -0.48 (30 U/kg/2 weeks), and -0.66 (15 U/kg/2 weeks) SD of the mean of the reference population after 8 years of ERT, approaching the reference population. Estimated risk of osteoporosis of this GD population, if left untreated, ranged from approximately 10 to 30% in women and 10% to 25% in men. CONCLUSIONS ERT with imiglucerase (Cerezyme) may increase BMD in patients with GD. Response to treatment with imiglucerase is slower for BMD than for hematologic and visceral aspects of GD. A normal (age- and sex-adjusted) BMD should be a therapeutic goal for patients with type 1 GD.
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Vom Dahl S, Poll L, Di Rocco M, Ciana G, Denes C, Mariani G, Maas M. Evidence-based recommendations for monitoring bone disease and the response to enzyme replacement therapy in Gaucher patients. Curr Med Res Opin 2006; 22:1045-64. [PMID: 16846538 DOI: 10.1185/030079906x104623] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Bone disease is a serious complication of Gaucher disease. Untreated, it can result in pain, permanent bone damage and disability. Enzyme replacement therapy reverses many of the clinical signs of Gaucher bone disease but early assessment and treatment, and regular monitoring, are essential in optimising outcomes. SCOPE In September 2005, a group of European experts met to review current knowledge and identify best practice and unmet needs in the monitoring of Gaucher bone disease and the response to enzyme replacement therapy. METHODS Medline searches of peer-reviewed literature (no date restrictions) were conducted and supplemented by additional information considered relevant by panellists to furthering discussions. FINDINGS AND CONCLUSIONS The group's recommendations included: currently used biochemical bone markers are not clinically practical or reliable; plain X-rays should not be the sole method of assessing bone disease; MRI is the most sensitive method for monitoring bone marrow infiltration by Gaucher cells; semi-quantitative methods for assessing bone marrow infiltration in routine clinical practice should use readily available technology, include an assessment of Gaucher cell infiltration in the lumbar spine and femur, and be validated for inter-rater reliability and in comparison to other methods; a multidisciplinary approach is required for the treatment of Gaucher patients; all Gaucher patients should receive a comprehensive initial radiologic evaluation for bone disease and ongoing radiological monitoring at least once every 2 years.
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Affiliation(s)
- Stephan Vom Dahl
- Department of Internal Medicine, St Franziskus Hospital, Cologne, Germany.
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