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Werner J, Rivera N, Grunewald J, Eklund A, Iseda T, Darlington P, Kullberg S. HLA-DRB1 alleles associate with hypercalcemia in sarcoidosis. Respir Med 2021; 187:106537. [PMID: 34325227 DOI: 10.1016/j.rmed.2021.106537] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 06/19/2021] [Accepted: 07/03/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND The mechanisms behind and which patients are at risk of developing sarcoidosis associated hypercalcemia (SAHC) have not been addressed. Different human leukocyte antigen (HLA) alleles associate with disease phenotypes in sarcoidosis. Insights into associations between HLA alleles, clinical phenotype and calcium levels may provide clues to mechanisms behind SAHC and help monitoring patients at risk for SAHC. AIMS AND OBJECTIVES To identify any HLA-association with SAHC, and to phenotypically characterize this patient group. METHODS 66 patients with SAHC (s-Ca2+>1.33 mmol/L) and 150 normocalcemic patients as controls were identified in a cohort of sarcoidosis patients. Data on HLA-DRB1 alleles, sex, angiotensin-converting enzyme (ACE), creatinine, extrapulmonary manifestations (EPM), age at sarcoidosis diagnosis, and how long after diagnosis SAHC emerged, were retrieved. RESULTS HLA-DRB1*04 was more common in patients with SAHC and the proportion of patients with HLA-DRB1*04 increased the more pronounced hypercalcemia. In patients with s-Ca2+>1.4 mmol/L, 20 out of 30 carried the HLA-DRB1*04 allele (67%, p < 0.01). Patients with SAHC more often disclosed renal insufficiency, elevated ACE, EPM, and a non-resolving disease than controls. The mean duration between sarcoidosis diagnosis and detection of SAHC was 1.39 years. CONCLUSIONS SAHC is associated with a more severe disease phenotype, particularly patients carrying the HLA-DRB1*04 allele are at higher risk for SAHC. HLA-assessment in the clinic can be a way to identify these patients. The results provide a basis for future studies on the connection between HLA-DRB1*04 and SAHC mechanisms.
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Affiliation(s)
- Joanna Werner
- Department of Respiratory Medicine, Theme Inflammation and Infection, Karolinska University Hospital, 171 76, Stockholm, Sweden; Department of Medicine Solna, Respiratory Medicine Division, Karolinska Institutet, 171 77, Stockholm, Sweden.
| | - Natalia Rivera
- Department of Medicine Solna, Respiratory Medicine Division, Karolinska Institutet, 171 77, Stockholm, Sweden.
| | - Johan Grunewald
- Department of Respiratory Medicine, Theme Inflammation and Infection, Karolinska University Hospital, 171 76, Stockholm, Sweden; Department of Medicine Solna, Respiratory Medicine Division, Karolinska Institutet, 171 77, Stockholm, Sweden.
| | - Anders Eklund
- Department of Medicine Solna, Respiratory Medicine Division, Karolinska Institutet, 171 77, Stockholm, Sweden.
| | - Tomoko Iseda
- Department of Medicine Solna, Respiratory Medicine Division, Karolinska Institutet, 171 77, Stockholm, Sweden.
| | - Pernilla Darlington
- Department of Internal Medicine, Sjukhusbacken 10, Södersjukhuset, 118 83, Stockholm, Sweden; Department of Clinical Science and Education, Södersjukhuset and Karolinska Institutet, 171 77, Stockholm, Sweden.
| | - Susanna Kullberg
- Department of Respiratory Medicine, Theme Inflammation and Infection, Karolinska University Hospital, 171 76, Stockholm, Sweden; Department of Medicine Solna, Respiratory Medicine Division, Karolinska Institutet, 171 77, Stockholm, Sweden.
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Stjepanovic MI, Mihailovic-Vucinic V, Spasovski V, Milin-Lazovic J, Skodric-Trifunovic V, Stankovic S, Andjelkovic M, Komazec J, Momcilovic A, Santric-Milicevic M, Pavlovic S. Genes and metabolic pathway of sarcoidosis: identification of key players and risk modifiers. Arch Med Sci 2019; 15:1138-1146. [PMID: 31572458 PMCID: PMC6764301 DOI: 10.5114/aoms.2018.79682] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 10/17/2018] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION Sarcoidosis is a rare multisystem granulomatous disease with unknown etiology. The interplay of vitamin D deficiency and genetic polymorphisms in genes coding for the proteins relevant for metabolism of vitamin D is an important, but unexplored area. The aim of this study was to investigate the association between single nucleotide polymorphisms (SNPs) in CYP2R1 (rs10741657), CYP27B1 (rs10877012), DBP (rs7041; rs4588), and VDR (rs2228570) genes and sarcoidosis, as well as the association between these SNPs and 25(OH)D levels in sarcoidosis patients. MATERIAL AND METHODS For that purpose we genotyped 86 sarcoidosis patients and 50 healthy controls using the PCR-RFLP method. RESULTS Subjects carrying the CC genotype of CYP27B1 rs10877012 have 10 times lower odds of suffering from sarcoidosis. Moreover, DBP rs4588 AA genotype was shown to be a susceptibility factor, where carriers of this genotype had eight times higher odds for developing sarcoidosis. In addition, the A allele of the DBP gene (rs4588) was associated with lower levels of 25(OH)D in sarcoidosis patients. CONCLUSIONS These results suggest that patients with vitamin D deficiency should be regularly tested for genetic modifiers that are related to sarcoidosis in order to prevent development of serious forms of sarcoidosis.
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Affiliation(s)
- Mihailo I. Stjepanovic
- Clinic of Pulmonology, Clinical Center of Serbia, Belgrade, Serbia
- Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Violeta Mihailovic-Vucinic
- Clinic of Pulmonology, Clinical Center of Serbia, Belgrade, Serbia
- Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Vesna Spasovski
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | | | - Vesna Skodric-Trifunovic
- Clinic of Pulmonology, Clinical Center of Serbia, Belgrade, Serbia
- Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Sanja Stankovic
- Center for Medical Biochemistry, Clinical Center of Serbia, Belgrade, Serbia
| | - Marina Andjelkovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Jovana Komazec
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Ana Momcilovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Milena Santric-Milicevic
- Medical Faculty, University of Belgrade, Belgrade, Serbia
- Institute of Social Medicine, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Sonja Pavlovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
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Kumar Prusty BS, Ramineni KK, Mohan Reddy GK, Jakkani RK, Chakrahari UB. Hypercalcemic Encephalopathy as the Presenting Manifestation of Sarcoidosis. Indian J Endocrinol Metab 2019; 23:384-385. [PMID: 31641647 PMCID: PMC6683695 DOI: 10.4103/ijem.ijem_206_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- B. Saroj Kumar Prusty
- Consultants of Intensivist, Yashoda Superspeciality Hospital, Malakpet, Hyderabad, Telangana, India
| | - Kiran Kumar Ramineni
- Neurologist, Yashoda Superspeciality Hospital, Malakpet, Hyderabad, Telangana, India
| | | | - Ravi Kanth Jakkani
- Radiologist, Yashoda Superspeciality Hospital, Malakpet, Hyderabad, Telangana, India
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Abstract
Parathyroid independent hypercalcemia is characterized by suppressed parathyroid hormone (PTH) in the presence of hypercalcemia. Well known causes and mechanisms are redistribution of calcium from the skeleton, by malignant diseases; inadequately increased intestinal calcium uptake mediated by increased vitamin D activity, and reduced renal elimination due to medications. Frequent and infrequent causes are discussed, and more recent mechanistic models presented in this review. Most hypercalcemic conditions are stable and in equilibrium between the different organs, whereas the utmost severe cases are characterized by rapid rising calcium levels and renal failure, resulting in a vicious circle where a disequilibrium state is developed. Management and treatment depends on the underlying condition and severity. The aim of this review is to discuss non-parathyroid hypercalcemic conditions as seen in the modern clinic, with a focus on areas where recent gain of knowledge has been achieved.
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Affiliation(s)
- Jens Bollerslev
- Section of Specialized Endocrinology, Division of Medicine, Oslo University Hospital, Norway; Faculty of Medicine, University in Oslo, Oslo, Norway.
| | - Mikkel Pretorius
- Section of Specialized Endocrinology, Division of Medicine, Oslo University Hospital, Norway; Faculty of Medicine, University in Oslo, Oslo, Norway
| | - Ansgar Heck
- Section of Specialized Endocrinology, Division of Medicine, Oslo University Hospital, Norway; Faculty of Medicine, University in Oslo, Oslo, Norway
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Sarathi V, Karethimmaiah H, Goel A. High-dose Vitamin D Supplementation Precipitating Hypercalcemic Crisis in Granulomatous Disorders. Indian J Endocrinol Metab 2017; 21:815-819. [PMID: 29285441 PMCID: PMC5729666 DOI: 10.4103/ijem.ijem_577_16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Vitamin D supplementation precipitating hypercalcemic crisis is often the first manifestation in patients with granulomatous disorders. METHODS We report our experience on patients presenting with hypercalcemic crisis due to granulomatous disorder and the role of Vitamin D supplementation in the precipitation of hypercalcemic crisis in them. RESULTS The study included five patients with granulomatous disorders who presented with hypercalcemic crisis. All patients initially presented with nonspecific constitutional symptoms to other health-care centers to receive high-dose Vitamin D supplementation (60,000 U/week or 600,000 U intramuscular single dose). All of these patients presented with hypercalcemic crisis (serum calcium: 16.04 ± 0.3 mg/dl) to our centers after a period of 32.8 ± 9.62 days. Three patients were diagnosed to have sarcoidosis, and two were diagnosed to have tuberculosis. All five patients had parathyroid hormone-independent hypercalcemia with elevated serum 1,25-dihydroxy Vitamin D. Serum angiotensin-converting enzyme level was elevated in all the three patients with sarcoidosis. Fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography was performed in two patients with sarcoidosis which demonstrated diffusely increased tracer uptake in liver. In these two patients, liver biopsy confirmed the diagnosis. CONCLUSIONS High-dose Vitamin D supplementation is most often the underlying cause of hypercalcemic crisis in patients with granulomatous disorders. Hence, high-dose Vitamin D supplementation should be used judiciously.
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Affiliation(s)
- Vijaya Sarathi
- Department of Endocrinology, Vydehi Institute of Medical Sciences and Research Center, Bengaluru, Karnataka, India
| | - Hareeshababu Karethimmaiah
- Department of Nephrology, Vydehi Institute of Medical Sciences and Research Center, Bengaluru, Karnataka, India
| | - Amit Goel
- Department of Endocrinology, Vydehi Institute of Medical Sciences and Research Center, Bengaluru, Karnataka, India
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Kuchay MS, Kaur P, Mishra SK, Mithal A. The changing profile of hypercalcemia in a tertiary care setting in North India: an 18-month retrospective study. ACTA ACUST UNITED AC 2017; 14:131-135. [PMID: 29263720 DOI: 10.11138/ccmbm/2017.14.1.131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This retrospective study was undertaken to determine the profile of hypercalcemia in all patients who presented to Medanta-The Medicity, a tertiary care hospital in North India. A total of 255,830 patients presented to the hospital during 1st January 2014 till 30th June 2015 (18 months). Among them calcium measurement was done in 26,297 (10.2%) patients. A total of 552 patients was found to have hypercalcemia. Among them, 15 (2.7%) patients had transient hypercalcemia and 537 (97.3%) had sustained hypercalcemia. The incidence of hypercalcemia was 2.09%, being transient in 0.05% and sustained in 2.04%. The most common causes in the sustained group were malignancy (23.1%) followed by primary hyperparathyroidism (PHPT, 21.9%). Most cases of PHPT were asymptomatic. Interestingly, we found emergence of two unusual groups of hypercalcemia, namely hypercalcemia of advanced chronic liver disease (n = 34) and vitamin D toxicosis (n = 21) in the non-parathyroid group of hypercalcemia. This changing pattern of hypercalcemia should be kept in mind while evaluating a patient of hypercalcemia in a hospital setting.
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Affiliation(s)
- Mohammad Shafi Kuchay
- Division of Endocrinology and Diabetes, Medanta-The Medicity, Sector 38, Gurgaon, Haryana, India
| | - Parjeet Kaur
- Division of Endocrinology and Diabetes, Medanta-The Medicity, Sector 38, Gurgaon, Haryana, India
| | - Sunil Kumar Mishra
- Division of Endocrinology and Diabetes, Medanta-The Medicity, Sector 38, Gurgaon, Haryana, India
| | - Ambrish Mithal
- Division of Endocrinology and Diabetes, Medanta-The Medicity, Sector 38, Gurgaon, Haryana, India
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The Changing Profile of Hypercalcemia in Hospital Populations. Clin Rev Bone Miner Metab 2017. [DOI: 10.1007/s12018-017-9231-y] [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]
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Abstract
Hypercalcemia occurs in up to 4% of the population in association with malignancy, primary hyperparathyroidism, ingestion of excessive calcium and/or vitamin D, ectopic production of 1,25-dihydroxyvitamin D [1,25(OH)2D], and impaired degradation of 1,25(OH)2D. The ingestion of excessive amounts of vitamin D3 (or vitamin D2) results in hypercalcemia and hypercalciuria due to the formation of supraphysiological amounts of 25-hydroxyvitamin D [25(OH)D] that bind to the vitamin D receptor, albeit with lower affinity than the active form of the vitamin, 1,25(OH)2D, and the formation of 5,6-trans 25(OH)D, which binds to the vitamin D receptor more tightly than 25(OH)D. In patients with granulomatous disease such as sarcoidosis or tuberculosis and tumors such as lymphomas, hypercalcemia occurs as a result of the activity of ectopic 25(OH)D-1-hydroxylase (CYP27B1) expressed in macrophages or tumor cells and the formation of excessive amounts of 1,25(OH)2D. Recent work has identified a novel cause of non-PTH-mediated hypercalcemia that occurs when the degradation of 1,25(OH)2D is impaired as a result of mutations of the 1,25(OH)2D-24-hydroxylase cytochrome P450 (CYP24A1). Patients with biallelic and, in some instances, monoallelic mutations of the CYP24A1 gene have elevated serum calcium concentrations associated with elevated serum 1,25(OH)2D, suppressed PTH concentrations, hypercalciuria, nephrocalcinosis, nephrolithiasis, and on occasion, reduced bone density. Of interest, first-time calcium renal stone formers have elevated 1,25(OH)2D and evidence of impaired 24-hydroxylase-mediated 1,25(OH)2D degradation. We will describe the biochemical processes associated with the synthesis and degradation of various vitamin D metabolites, the clinical features of the vitamin D-mediated hypercalcemia, their biochemical diagnosis, and treatment.
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Affiliation(s)
- Peter J Tebben
- Divisions of Endocrinology (P.J.T., R.K.) and Nephrology and Hypertension (R.K.), and Departments of Pediatric and Adolescent Medicine (P.J.T.), Internal Medicine (P.J.T., R.K.), Laboratory Medicine and Pathology (R.J.S.), and Biochemistry in Molecular Biology (R.K.), Mayo Clinic College of Medicine, Rochester, Minnesota 55905
| | - Ravinder J Singh
- Divisions of Endocrinology (P.J.T., R.K.) and Nephrology and Hypertension (R.K.), and Departments of Pediatric and Adolescent Medicine (P.J.T.), Internal Medicine (P.J.T., R.K.), Laboratory Medicine and Pathology (R.J.S.), and Biochemistry in Molecular Biology (R.K.), Mayo Clinic College of Medicine, Rochester, Minnesota 55905
| | - Rajiv Kumar
- Divisions of Endocrinology (P.J.T., R.K.) and Nephrology and Hypertension (R.K.), and Departments of Pediatric and Adolescent Medicine (P.J.T.), Internal Medicine (P.J.T., R.K.), Laboratory Medicine and Pathology (R.J.S.), and Biochemistry in Molecular Biology (R.K.), Mayo Clinic College of Medicine, Rochester, Minnesota 55905
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Kamphuis LS, Bonte-Mineur F, van Laar JA, van Hagen PM, van Daele PL. Calcium and vitamin D in sarcoidosis: is supplementation safe? J Bone Miner Res 2014; 29:2498-503. [PMID: 24753153 DOI: 10.1002/jbmr.2262] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 03/25/2014] [Accepted: 03/30/2014] [Indexed: 11/06/2022]
Abstract
Granulomas in sarcoidosis express high levels of 1α-hydroxylase, an enzyme that catalyzes the hydroxylation of 25-OH vitamin D to its active form, 1,25(OH)2 vitamin D. Overproduction of 1α-hydroxylase is held responsible for the development of hypercalcemia in sarcoidosis patients. Corticosteroids are used as first-line treatment in organ-threatening sarcoidosis. In this light, osteoporosis prevention with calcium and vitamin D (CAD) supplementation is often warranted. However, sarcoidosis patients are at risk for hypercalcemia, and CAD supplementation affects the calcium metabolism. We studied calcium and vitamin D disorders in a large cohort of sarcoidosis patients and investigated if CAD supplementation is safe. Retrospectively, data of 301 sarcoidosis patients from July 1986 to June 2009 were analyzed for serum calcium, 25-hydroxy vitamin D (25-(OH)D), 1,25-dihydroxy vitamin D (1,25(OH)2 D), and use of CAD supplementation. Disease activity of sarcoidosis was compared with serum levels of vitamin D. Hypercalcemia occurred in 8%. A significant negative correlation was found between 25-(OH)D and disease activity of sarcoidosis measured by somatostatin receptor scintigraphy. In our study, 5 of the 104 CAD-supplemented patients developed hypercalcemia, but CAD supplementation was not the cause of hypercalcemia. Patients without CAD supplementation were at higher risk for developing hypercalcemia. During CAD supplementation, no hypercalcemia developed as a result of supplementation. Hypovitaminosis D seems to be related with more disease activity of sarcoidosis and, therefore, could be a potential risk factor for disease activity of sarcoidosis. Thus, vitamin D-deficient sarcoidosis patients should be supplemented.
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Affiliation(s)
- Lieke S Kamphuis
- Department of Immunology, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands; Department of Internal Medicine, Section of Clinical Immunology, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
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Tollitt J, Solomon L. Hypercalcaemia and acute kidney injury following administration of vitamin D in granulomatous disease. BMJ Case Rep 2014; 2014:bcr-2014-203824. [PMID: 24717583 DOI: 10.1136/bcr-2014-203824] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Vitamin D deficiency is common. It causes osteomalacia, may contribute to osteoporosis and is an independent risk factor for cancer, diabetes, multiple sclerosis, cardiovascular disease and all-cause mortality. We describe patients with a history of sarcoidosis who developed acute kidney injury due to hypercalcaemia following treatment with colecalciferol.
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Affiliation(s)
- James Tollitt
- Renal Unit, Lancashire Teaching Hospitals, Royal Preston Hospital, Lancashire, UK
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11
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Negri AL, Rosa Diez G, Del Valle E, Piulats E, Greloni G, Quevedo A, Varela F, Diehl M, Bevione P. Hypercalcemia secondary to granulomatous disease caused by the injection of methacrylate: a case series. CLINICAL CASES IN MINERAL AND BONE METABOLISM : THE OFFICIAL JOURNAL OF THE ITALIAN SOCIETY OF OSTEOPOROSIS, MINERAL METABOLISM, AND SKELETAL DISEASES 2014; 11:44-48. [PMID: 25002879 PMCID: PMC4064440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Association of dysregulated calcium homeostasis and granulomatous disease is well established. There exist reports in the literature of granulomatous reactions produced by silicones associated with hypercalcemia. In this case series we report four young women that underwent methacrylate injections in gluteus, thighs and calves that developed granulomas with posterior appearance of hypercalcemia. This complication presented as subacute around 6 months after the procedure. The four patients have as common elements the presence of moderate to severe renal insufficiency, suppressed PTH and elevated calcitriol levels for the degree of renal function. In the image studies, two patients presented in the nuclear magnetic resonance of the gluteus hypodense nodular images compatible with granulomas. Two patients had a positron emission tomography performed showing increased metabolic activity in the muscles of the gluteal region compatible with granulomas. Two patients had a partial surgical resection of the gluteal lesions with the finding of methacrylate associated to foreign body granulomas. In these patients hypercalcemia was treated with oral or local injections of corticoids, intravenous bisphosphonates or ketoconazole with good response. Although the prevalence of this complication with methacrylate injection is not common, hypercalcemia secondary to granulomas should be considered in the differential diagnosis of patients with hypercalcemia when there is a history of this procedure, and especially if they have a reduction in their renal function.
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Affiliation(s)
- Armando Luis Negri
- Instituto de Investigaciones Metabólicas, Universidad del Salvador, Buenos Aires, Argentina
| | | | - Elisa Del Valle
- Instituto de Investigaciones Metabólicas, Universidad del Salvador, Buenos Aires, Argentina
| | | | - Gustavo Greloni
- Servicio de Nefrología, Hospital Italiano de Buenos Aires, Argentina
| | | | - Federico Varela
- Servicio de Nefrología, Hospital Italiano de Buenos Aires, Argentina
| | - Maria Diehl
- Servicio de Endocrinología, Hospital Italiano de Buenos Aires, Argentina
| | - Pablo Bevione
- Servicio de Nefrología, Hospital Alemán, Buenos Aires, Argentina
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Moran ME. Modern Stone Science. Urolithiasis 2014. [DOI: 10.1007/978-1-4614-8196-6_29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Elevated 1- α hydroxylase activity in monocytes from patients with active tuberculosis. Clin Dev Immunol 2013; 2013:928138. [PMID: 24371450 PMCID: PMC3859259 DOI: 10.1155/2013/928138] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 10/23/2013] [Accepted: 11/06/2013] [Indexed: 02/06/2023]
Abstract
A uremic patient developed hypercalcemia after tuberculosis infection, and his ionized calcium levels correlated with 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) levels. We performed further studies to determine whether monocytes are alternative sites of 1,25(OH)2D3 conversion beyond renal tubular cells. Using an ex vivo bioassay, in this study, we found that 1-α hydroxylase (CYP27B1) activity in monocytes is significantly higher in patients with active tuberculosis (TB) than in those with frequent TB contact. However, when monocytes from patients with active TB were restimulated with antigen derived from Mycobacterium tuberculosis, less 1,25(OH)2D3 was observed. In contrast, the level of 1,25(OH)2D3 was unchanged in those with frequent TB contact. We conclude that monocytes may be an alternative source of 1-α hydroxylase that could convert 25-hydroxyvitamin D3 to the more active 1,25(OH)2D3.
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Abstract
Severe hypercalcemia is uncommon in clinical practice and is usually due to primary hperparathyroidism or malignancy. We present a patient who presented with severe hypercalcemia with renal failure; further evaluation of which revealed the diagnosis of sarcoidosis. This case is presented in view of the rarity of presentation of sarcoidosis with hypercalcemic crisis.
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Affiliation(s)
- S Nayak-Rao
- Staff Nephrologist, St. Martha's Hospital, Nrupathunga Road, Bangalore, India
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15
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Lim V, Clarke BL. Coexisting primary hyperparathyroidism and sarcoidosis cause increased angiotensin-converting enzyme and decreased parathyroid hormone and phosphate levels. J Clin Endocrinol Metab 2013; 98:1939-45. [PMID: 23493435 DOI: 10.1210/jc.2012-4197] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Primary hyperparathyroidism (PHPT) and sarcoidosis may separately contribute to abnormal calcium and phosphate metabolism via different mechanisms, and their coexistence is infrequently reported. OBJECTIVE We sought to characterize a group of 50 patients with coexisting PHPT and sarcoidosis in our institution to evaluate their clinical and laboratory characteristics. DESIGN AND SETTING This was a retrospective observational study of patients with both disorders at our institution between January 1980 and December 2011. OUTCOME A cohort of 50 patients was identified, with mean ± SD age 59.6 ± 13.9 years and 86% women. Serum calcium in the cohort was 11.1 ± 1.1 mg/dL, phosphate was 3.3 ± 0.6 mg/dL, and PTH was 76 ± 42 pg/mL. Serum 25-hydroxyvitamin D was 25 ± 9 ng/mL, and serum 1,25-dihydroxyvitamin D was 51 ± 20 pg/mL; 24-hour urine calcium was 275 ± 211 mg. In subjects with sarcoidosis, serum angiotensin-converting enzyme (ACE) was 47.2 ± 37.4 U/L. Sarcoidosis was diagnosed first in 50% of patients, PHPT was diagnosed first in 16% of patients, and sarcoidosis and PHPT were both diagnosed within 6 months of each other in 30% of patients. The interval between the 2 diagnoses when sarcoidosis was diagnosed first was 15.5 ± 12.4 years and was 5.5 ± 6.0 years when PHPT was diagnosed first. Patients with PHPT who had active sarcoidosis had higher serum ACE levels (60.9 ± 38.1 vs 20.2 ± 14.0 U/L, P <.0001), lower PTH levels (60 ± 24 vs 96 ± 41 pg/mL, P = .01), and lower phosphate levels (2.7 ± 0.6 vs 3.2 ± 0.5 mg/dL, P = .02). CONCLUSIONS Fifty patients with coexisting PHPT and sarcoidosis are described, with patients with PHPT coexisting with clinically active sarcoidosis having increased serum ACE levels and decreased serum PTH and phosphate levels compared with those with inactive sarcoidosis.
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Affiliation(s)
- Vivien Lim
- Mayo Clinic Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Rochester, Minnesota 55905, USA
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Zhang JTW, Chan C, Kwun SY, Benson KA. A case of severe 1,25-dihydroxyvitamin D-mediated hypercalcemia due to a granulomatous disorder. J Clin Endocrinol Metab 2012; 97:2579-83. [PMID: 22639294 DOI: 10.1210/jc.2012-1357] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
BACKGROUND Profound hypercalcemia is usually due to underlying malignancy. CASE We describe a case of granulomatous myositis presenting with extreme hypercalcemia of 20.1 mg/dl and generalized weakness that did not resolve despite rapid correction of serum calcium. The disease process was unmasked by cholecalciferol supplementation. Initial search for a malignant process yielded no diagnosis, but an elevated 1,25-dihydroxyvitamin D level, in the setting of a suppressed PTH and undetectable PTHrP, pointed to the presence of excessive 1α-hydroxylase activity. METHODS AND RESULTS Biopsy of the vastus lateralis muscle showed extensive granulomatous myositis. Immunohistochemical staining for 1α-hydroxylase was localized to the multinucleated giant cells and histiocytes. Musculoskeletal magnetic resonance imaging showed involvement of proximal muscle groups of both thighs and upper limbs. CONCLUSION Measurement of vitamin D metabolites is pivotal in diagnosing 1,25-dihydroxyvitamin D-mediated hypercalcemia. Granulomatous disease can occasionally cause profound hypercalcemia and needs to be considered in the differential diagnosis. 1,25-Dihydroxyvitamin D-mediated hypercalcemia is responsive to glucocorticoid therapy.
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Affiliation(s)
- Jane Tong Wen Zhang
- Department of Endocrinology and Metabolism, Concord Repatriation General Hospital, Concord, New South Wales 2137, Australia.
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Extrarenal expression of the 25-hydroxyvitamin D-1-hydroxylase. Arch Biochem Biophys 2012; 523:95-102. [PMID: 22446158 DOI: 10.1016/j.abb.2012.02.016] [Citation(s) in RCA: 172] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 02/21/2012] [Accepted: 02/23/2012] [Indexed: 12/19/2022]
Abstract
Like the vitamin D receptor (VDR), the CYP27B1-hydroxylase is expressed widely in human tissues. This expression profile establishes the potential for interaction of the VDR with the product of the CYP27B1, 1,25-dihydroxyvitamin D (1,25-(OH)(2)D), in either an intracrine or paracrine mode. This expansive expression profile also suggests that the local production and action of 1,25-(OH)(2)D to regulate VDR-directed gene expression may be similarly wide-ranging and distinct from what occurs in the kidney; the proximal renal tubular epithelial cell is the richest source of the CYP27B1 and the site for production of 1,25-(OH)(2)D destined to function as a hormone. Existence of the CYP27B1 at extrarenal sites has been widely documented, although the functional impact of the enzyme in these tissues has yet to be fully demonstrated. Two notable exceptions are the disease-activated macrophage (e.g., in sarcoidosis or tuberculosis) and the placenta. These two tissues are capable of generating enough 1,25-(OH)(2)D so as to be detectable in the general circulation. As such, this review will focus on CYP27B1 expression only at these two sites, theorizing that 1,25-(OH)(2)D production at these sites is for the purpose of local immunoregulatory function, not for controlling calcium balance in the host or the fetus.
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Hypercalcemia in two patients with sarcoidosis and Mycobacterium avium intracellulare not mediated by elevated vitamin D metabolites. Am J Med Sci 2011; 342:336-40. [PMID: 21760475 DOI: 10.1097/maj.0b013e31822224c3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION To describe 2 unusual cases of hypercalcemia due to granulomatous diseases with normal vitamin D metabolites and no other ready explanation for the hypercalcemia. METHODS We present the clinical, laboratory and pathologic findings of 2 patients with hypercalcemia and review previous reports of hypercalcemia in granulomatous diseases without elevated vitamin D metabolites. RESULTS Hypercalcemia was described in various granulomatous diseases including sarcoidosis, tuberculosis, berylliosis, leprosy and, rarely, in fungal infections. Elevated serum level of vitamin D or its metabolites was linked to the pathogenesis of hypercalcemia in these disorders. The authors present the clinical, laboratory and pathologic findings in 2 patients who presented with hypercalcemia and normal vitamin D metabolites with no other ready explanation for the hypercalcemia. The first patient was diagnosed with Mycobacterium avium, whereas the second patient was found to have sarcoidosis. CONCLUSION Although hypercalcemia in granulomatous diseases has been attributed to be mediated by elevated vitamin D metabolites, there have been several case reports that documented normal values of active vitamin D metabolites. This report illustrates the regulatory feedback mechanisms of vitamin D synthesis and introduces the term "inappropriately normal" vitamin D metabolites levels in light of low levels of parathyroid hormone.
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Karnchanasorn R, Sarikonda M, Aldasouqi S, Gossain VV. Severe hypercalcemia and acute renal failure: an unusual presentation of sarcoidosis. Case Rep Med 2010; 2010:423659. [PMID: 21209801 PMCID: PMC3014744 DOI: 10.1155/2010/423659] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Accepted: 10/31/2010] [Indexed: 11/29/2022] Open
Abstract
Although hypercalcemia is a known metabolic complication of sarcoidosis, it is rarely a presenting manifestation. Long-standing hypercalcemia and hypercalciuria can cause nephrocalcinosis and chronic renal failure. Acute renal failure, although described, is also a rare presentation of patients with sarcoidosis. We describe two patients with sarcoidosis, who presented with severe hypercalcemia and worsening renal function. Parathyroid hormone levels were appropriately suppressed. This led to an extensive search for the cause of hypercalcemia. Finally, after a lymph node biopsy in both cases, a diagnosis of sarcoidosis was established, hypercalcemia resolved, and renal function improved in both cases after administration of prednisone.
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Affiliation(s)
- Rudruidee Karnchanasorn
- Department of Diabetes, Endocrinology & Metabolism, City of Hope, University of California, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Molly Sarikonda
- Department of Internal Medicine - Infectious Diseases, Washington University, Campus Box 8051, St. Louis, MO 63130, USA
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Demetriou ETW, Pietras SM, Holick MF. Hypercalcemia and soft tissue calcification owing to sarcoidosis: the sunlight-cola connection. J Bone Miner Res 2010; 25:1695-9. [PMID: 20200968 DOI: 10.1002/jbmr.51] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Hypercalcemia occurs in sarcoidosis because of 1,25-dihydroxyvitamin D production by pulmonary alveolar macrophages. Long-standing hypercalcemia and hypercalciuria may cause such complications as nephrocalcinosis, nephrolithiasis, and soft tissue calcification, which can be at least partially reversible with treatment. Here we present a 43-year-old African-American man with diffuse soft tissue calcifications and acute kidney injury owing to sarcoidosis-induced hypercalcemia, probably exacerbated by sun exposure and phosphorus intake in the form of dietary cola drinks. Soft tissue calcifications resolved and kidney function improved significantly with hydration and glucocorticoid therapy. We discuss the pathophysiology of the hypercalcemia of sarcoidosis and current treatment options.
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Affiliation(s)
- Emily T W Demetriou
- Department of Medicine, Section of Endocrinology, Diabetes and Nutrition, Boston Medical Center, Boston, MA, USA
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Hornum I, Transbol I. Observations on the different calcium metabolic patterns in sarcoidosis. A metabolic and kinetic study. ACTA MEDICA SCANDINAVICA 2009; 200:341-9. [PMID: 983804 DOI: 10.1111/j.0954-6820.1976.tb08244.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Combined calcium balance and 47Ca turnover studies in sarcoidosis (4 patients) and vitamin D intoxication (1 patient) disclosed three different patterns of calcium metabolism. On patient with sarcoidosis had a normal metabolism of calcium, and two patients presented the usual pattern of intestinal hyperabsorption, hypercalcemia, and hypercalciuria. The fourth patient with sarcoidosis and the patient with vitamin D intoxication, both studied during spontaneous remissions, presented the third pattern. The main features here were hypercalcemia despite normal intestinal absorption of calcium, enlarged exchangeable calcium pool, accelerated accretion and resorption rates, hypercalciuria, and a distinctly negative calcium balance. This pattern of remission seems to represent a mobilization of extraosseous or metastatic calcifications, rather than a resorption of bone calcium.
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LARSSON LARSGUNNAR, LILJESTRAND AKE, WAHLUND HOLGER. Treatment of Sarcoidosis with Calciferol. ACTA ACUST UNITED AC 2009. [DOI: 10.1111/j.0954-6820.1952.tb14795.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Joglekar SP, Hudson RL, Logasundaram R, Pereira JH. 'Surgical cure' for non-parathyroid hypercalcemia. World J Surg Oncol 2009; 7:23. [PMID: 19254358 PMCID: PMC2662839 DOI: 10.1186/1477-7819-7-23] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2007] [Accepted: 03/02/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sarcoidosis is a granulomatous disease of unknown aetiology. Over 90% patients of sarcoidosis present with pulmonary findings. Other organs such as lymph nodes, skin, and joints may be involved. Isolated granulomatous disease confined to the spleen is rare. CASE PRESENTATION This report documents a rare case of isolated granulomatous disease of spleen presenting as hypercalcemia. After all possible causes for hypercalcemia were ruled out, splenectomy was done which proved diagnostic and therapeutic, as calcium levels returned to normal. CONCLUSION We propose that sarcoidosis should be kept in mind as a cause of unexplained hypercalcemia. Increased awareness of radiological features of splenic involvement in sarcoidosis, would help in diagnosis. We believe that we are reporting 9th case in the literature while writing this report.
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Craven BL, Passman C, Assimos DG. Hypercalcemic States associated with nephrolithiasis. Rev Urol 2008; 10:218-226. [PMID: 18836558 PMCID: PMC2556488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Although kidney stone formation due to hypercalcemic states is rare, it is important for urologists to understand the pathophysiology of these conditions, methods of diagnosis, and treatments. This should foster a quicker diagnosis and institution of appropriate therapy. The latter typically leads to the attenuation of kidney stone activity. Moreover, these patients have a systemic disease, and therapy has other health benefits.
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Affiliation(s)
- Brandon L Craven
- Department of Urology, Wake Forest University School of Medicine Winston-Salem, NC
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31
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Affiliation(s)
- Dana L Madison
- Division of Endocrinology, Oregon Health and Sciences University, Portland, Ore 97239, USA.
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Abstract
Calcium is essential for homeostasis, and normocalcemia should be maintained strictly during the perioperative period. The biochemistry of calcium equilibrium results from the calcium-sensing receptors on the parathyroid glands, which detect changes in calcium concentrations and initiate the proper response. Asymptomatic hypercalcemia is a common metabolic derangement that is often discovered on routine serum screening. The most common etiologies are primary hyperparathyroidism and cancer. Increasingly, parathyroidectomy is the preferred therapy for primary hyperparathyroidism. Severe hypercalcemia ("hypercalcemic crisis") should be managed aggressively with a combination of intravenous fluids, steroids, bisphosphonates, and calcitonin. Some of these patients may require an urgent parathyroidectomy for calcium control. Hypocalcemia needs to be verified, as many cases of hypocalcemia are the artifact of hypoalbuminemia. Severe hypocalcemia occurs after subtotal or total parathyroidectomy with auto transplantation as well as after massive resuscitation or blood transfusion. Strategies aimed at correcting calcium concentrations depend on the severity of symptomatology. If symptoms are mild, oral calcium supplementation can be given; otherwise, intravenous calcium should be administered.
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SALMON HW, MEYNELL GG. Primary hyperparathyroidism (adenoma) simulating sarcoidosis; report of a case. BRITISH MEDICAL JOURNAL 2004; 2:1440-2. [PMID: 14879127 PMCID: PMC2070660 DOI: 10.1136/bmj.2.4745.1440] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Macdonald J, Southgate HJ. Lessons to be learned: a case study approach. Sunshine-induced hypercalcaemia? THE JOURNAL OF THE ROYAL SOCIETY FOR THE PROMOTION OF HEALTH 2002; 122:194-6. [PMID: 12391835 DOI: 10.1177/146642400212200317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A man of 56 years presented with severe hypercalcaemia shortly after returning from a holiday in the sun. The final diagnosis was sarcoidosis. Measurement of the metabolites of vitamin D did not support sunshine exposure as being a contributory factor to the hypercalcaemia. The effects of sarcoid tissue on calcium metabolism are discussed.
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Affiliation(s)
- Jason Macdonald
- Worthing Hospital, Lyndhurst Road, Worthing, West Sussex BN11 2DH, England
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35
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Infante JR, Pacheco C, Torres-Avisbal M, Vallejo JA, González FM, Latre JM. [Pulmonary activity in sarcoidosis: 67Ga uptake quantification and plasma determination of 1,25-dihydroxyvitamin D)]. REVISTA ESPANOLA DE MEDICINA NUCLEAR 2002; 21:275-80. [PMID: 12206740 DOI: 10.1016/s0212-6982(02)72088-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
AIM The aim of our study was to produce a quantitative determination of Ga-67 pulmonary intake and correlate it with plasma levels of calcitriol. MATERIAL AND METHODS A prospective study was conducted, and included 65 patients (29 female, 36 male) referred to our section due to suspected sarcoidosis or fibrosis of the lungs. Gammagraphic images were obtained after injecting Ga-67 citrate, and vitamin D was determined by IRMA method. The final diagnosis led to 4 groups of patients: 26 with active sarcoidosis; 5 with inactive sarcoidosis (4 with a previous gammagraphic study, included in the previous group); 8 with fibrosis of the lungs; and 30 patients with no demonstrable pathology following medical/instrumental examination. For the quantitative analysis, areas of interest were drawn around each lung, together with another region in soft tissue of the right shoulder (background). The geometric mean for each region was calculated, as well as the Ga intake rate (InGa = [lung activity-background]/background). RESULTS Significant differences were found (p<0.01) when comparing each group's InGa, with the highest values occurring in the active sarcoidosis group. No significant differences were found when comparing plasma levels of calcitriol. No significant correlation was demonstrated between hormone and InGa rates. CONCLUSIONS InGa would seem to be a useful parameter for assessing inflammatory activity in the parenchyma of the lungs. Perhaps as a result of their variability, plasma concentrations of the active vitamin D metabolite have a limited role in this assessment.
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Affiliation(s)
- J R Infante
- Servicio de Medicina Nuclear, Hospital Universitario Reina Sofía, Córdoba, Spain
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36
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Inui N, Murayama A, Sasaki S, Suda T, Chida K, Kato S, Nakamura H. Correlation between 25-hydroxyvitamin D3 1 alpha-hydroxylase gene expression in alveolar macrophages and the activity of sarcoidosis. Am J Med 2001; 110:687-93. [PMID: 11403752 DOI: 10.1016/s0002-9343(01)00724-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To demonstrate expression of the 25-hydroxyvitamin D3 1 alpha-hydroxylase (1 alpha-hydroxylase) gene in human alveolar macrophages and measure the correlations among the 1 alpha-hydroxylase mRNA level, the activity of sarcoidosis, and calcium metabolism. SUBJECTS AND METHODS We examined 7 patients with sarcoidosis and 6 control patients with other pulmonary disorders who underwent bronchoalveolar lavage. Levels of 1 alpha-hydroxylase mRNA were measured by semiquantitative polymerase chain reaction amplification. We measured serum levels of calcium, ionized calcium, parathyroid hormone, calcitriol (1,25-dihydroxyvitamin D3), and 25-hydroxyvitamin D3 to evaluate calcium metabolism. To estimate the activity of sarcoidosis, we measured the cell count, the CD4/CD8 ratio in bronchoalveolar lavage cells, and the serum angiotensin-converting enzyme (ACE) activity. RESULTS Expression of 1 alpha-hydroxylase was demonstrated in purified human alveolar macrophages. The 1 alpha-hydroxylase mRNA levels in bronchoalveolar lavage cells were fivefold higher in sarcoidosis patients than in control patients (10.8 +/- 3.6 vs. 2.2 +/- 1.4, P <0.003). Among all patients studied, there were significant correlations between the 1 alpha-hydroxylase mRNA level in bronchoalveolar lavage samples and the percentage of alveolar lymphocytes (r = 0.83, P <0.005), the CD4/CD8 ratio (r = 0.77, P <0.02), serum ACE level (r = 0.58, P <0.05), serum ionized calcium level (r = 0.58, P <0.05), and the calcitriol/25-hydroxyvitamin D3 ratio (r = 0.57, P <0.05). In the sarcoidosis patients, a significant correlation was also observed between 1 alpha-hydroxylase mRNA and the percentage of alveolar lymphocytes (r = 0.82, P <0.05). CONCLUSION There is a correlation between 1 alpha-hydroxylase gene expression in alveolar macrophages with the activity of sarcoidosis and its associated disturbances in calcium metabolism.
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Affiliation(s)
- N Inui
- Department of Internal Medicine, Second Division, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Abstract
Hypercalcemia occurs in most granulomatous disorders. High serum calcium levels are seen in about 10% of patients with sarcoidosis; hypercalciuria is about three times more frequent. Tuberculosis, fungal granulomas, berylliosis, and lymphomas are other conditions that are associated with disorders of calcium metabolism. These abnormalities of calcium metabolism are due to dysregulated production of 1,25-(OH2)D3 (calcitriol) by activated macrophages trapped in pulmonary alveoli and granulomatous inflammation. Undetected hypercalcemia and hypercalciuria can cause nephrocalcinosis, renal stones, and renal failure. Corticosteroids cause prompt reversal of the metabolic defect. Chloroquine, hydroxychloroquine, and ketoconazole are the drugs that should be used if the patient fails to respond or develops dangerous side effects to corticosteroid therapy.
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Affiliation(s)
- O P Sharma
- LAC+USC Medical Center, Los Angeles, California 90033, USA.
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39
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Conron M, Young C, Beynon HL. Calcium metabolism in sarcoidosis and its clinical implications. Rheumatology (Oxford) 2000; 39:707-13. [PMID: 10908687 DOI: 10.1093/rheumatology/39.7.707] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE : To examine the clinical implications of disturbed calcium metabolism in sarcoidosis and how the pathophysiology affects management strategies. METHODS : The literature concerning calcium metabolism in sarcoidosis was reviewed. RESULTS : Dysregulated calcium metabolism is a well-recognized complication of sarcoidosis, resulting in hypercalcaemia (prevalence 5-10%), hypercalcuria (40-62%) and reduced bone density (40-55%). Extrarenal synthesis of calcitriol [1,25(OH)(2)D(3)] is central to the pathogenesis of abnormal calcium homeostasis, but alterations in parathyroid hormone (PTH) activity and the expression of PTH-related peptide have also been demonstrated. The immunosuppressive properties of calcitriol suggest that the raised levels seen in sarcoidosis could represent an adaptive response to the undefined antigen that causes sarcoidosis. CONCLUSIONS : The mechanisms of abnormal calcium metabolism in sarcoidosis need to be understood when treating hypercalcaemia, hypercalcuria and corticosteroid-induced osteoporosis. Studies are required to determine if the currently available therapies for osteoporosis are safe and effective in sarcoidosis.
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Affiliation(s)
- M Conron
- Department of Medicine, The Royal Free Hospital, London, UK
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40
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Rodman JS, Mahler RJ. Kidney stones as a manifestation of hypercalcemic disorders. Hyperparathyroidism and sarcoidosis. Urol Clin North Am 2000; 27:275-85, viii. [PMID: 10778470 DOI: 10.1016/s0094-0143(05)70257-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
When hypercalcemia is detected in a kidney stone formation, an intact parathyroid hormone measurement should be made. Detection of hyperparathyroidism (HPT) is important to prevent further stone episodes and to avoid the complications of high serum calcium in other organ systems. Stones in patients with HPT often contain apatite salts in addition to calcium oxalate because parathyroid excess may create a renal tubular acidosis. The calculi seen in patients with sarcoidosis, another hypercalcemic state that may cause stone formation, however, are usually pure calcium oxalate. Excess generation of 1,25-dihydroxyvitamin D results in intestinal hyperabsorption of calcium and secondary hyperoxaluria.
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Affiliation(s)
- J S Rodman
- Department of Medicine, Cornell University School of Medicine, New York, New York, USA
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41
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Statement on sarcoidosis. Joint Statement of the American Thoracic Society (ATS), the European Respiratory Society (ERS) and the World Association of Sarcoidosis and Other Granulomatous Disorders (WASOG) adopted by the ATS Board of Directors and by the ERS Executive Committee, February 1999. Am J Respir Crit Care Med 1999; 160:736-55. [PMID: 10430755 DOI: 10.1164/ajrccm.160.2.ats4-99] [Citation(s) in RCA: 1375] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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ELLMAN P, PARFITT AM. The resemblance between sarcoidosis with hypercalcaemia and hyperparathyroidism. BRITISH MEDICAL JOURNAL 1998; 2:108-10. [PMID: 13820071 PMCID: PMC2096801 DOI: 10.1136/bmj.2.5192.108] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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SCADDING JG. Mycobacterium tuberculosis in the aetiology of sarcoidosis. BRITISH MEDICAL JOURNAL 1998; 2:1617-23. [PMID: 13747016 PMCID: PMC2098450 DOI: 10.1136/bmj.2.5213.1617] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Affiliation(s)
- G Rizzato
- Sarcoid Clinic, Niguarda Hospital, Milan, Italy
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46
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Abstract
Biochemical markers in sarcoidosis are closely related to the immunological events and the activity of inflammatory effector cells at sites of granuloma formation. The markers can be measured in serum, then reflecting whole body concentration, or in BAL fluid, then indicating activity in the lung. Only calcium and ACE serum levels have gained a proven value in the clinical field.
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Affiliation(s)
- U Costabel
- Department of Pneumology and Allergology, Ruhrlandklinik, Essen, Germany
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47
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Chan FK, Koberle LM, Thys-Jacobs S, Bilezikian JP. Differential diagnosis, causes, and management of hypercalcemia. Curr Probl Surg 1997; 34:445-523. [PMID: 9186232 DOI: 10.1016/s0011-3840(97)80008-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- F K Chan
- College of Physicians and Surgeons Columbia University, New York, New York, USA
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48
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Abstract
Hypercalcemia occurs in about 10% of the patients with sarcoidosis; hypercalciuria is about three times more frequent. These abnormalities of calcium metabolism are due to dysregulated production of 1,25-(OH)2-D3 (calcitriol) by activated macrophages trapped in pulmonary alveoli and granulomatous inflammation. Undetected hypercalcemia and hypercalciuria can cause nephrocalcinosis, renal stones, and renal failure. Corticosteroids cause prompt reversal of the metabolic defect. Chloroquine, hydroxychloroqune, and ketoconazole are the drugs that should be used if the patient fails to respond or develops dangerous side effects to corticosteroid therapy.
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Affiliation(s)
- O P Sharma
- Department of Pulmonary and Critical Care Medicine, USC School of Medicine, Los Angeles, USA
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49
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Fuss M, Pepersack T, Gillet C, Karmali R, Corvilain J. Calcium and vitamin D metabolism in granulomatous diseases. Clin Rheumatol 1992; 11:28-36. [PMID: 1582115 DOI: 10.1007/bf02207080] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Overproduction of the active metabolite of vitamin D 1,25-dihydroxyvitamin D (1,25(OH)2D) has been described in sarcoidosis and other granulomatous diseases. High circulating concentrations of 1,25(OH)2D lead to increased intestinal absorption of calcium, possibly to enhanced bone resorption, and may result in hypercalcaemia and/or hypercalciuria. Data obtained in vivo and in vitro demonstrated that the unregulated production of 1,25(OH)2D lies within the granulomatous tissue and is controlled by glucocorticoids. This abnormal production of 1,25(OH)2D seems to be a general phenomenon of granulomatous processes, which is not exceptional in sarcoidosis, but appears seldom in tuberculosis. These abnormalities, however, are not pathognomonic of granulomatous processes, since they have been described in other diseases such as lymphomas.
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Affiliation(s)
- M Fuss
- Department of Internal Medicine, Endocrinology and Metabolism, Brugmann University Hospital, Université Libre de Bruxelles, Belgium
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50
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Rolla AR, Granfone A, Balogh K, Khettry U, Davis BL. Granuloma-related hypercalcemia in lipoid pneumonia. Am J Med Sci 1986; 292:313-6. [PMID: 3777015 DOI: 10.1097/00000441-198611000-00012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A patient with hypercalcemia, suppressed serum PTH levels, and elevated serum levels of calcitriol was found to have a granulomatous lipoid pneumonia due to chronic aspiration of a "vaporizing ointment." After the surgical removal of the largest granuloma, the serum calcium and calcitriol levels rapidly returned to normal. This is a new instance of granuloma-induced hypercalcemia, probably mediated by the activation of vitamin D by cells of the granulomatous reaction.
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