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Wajih Z, Karpe KM, Walters GD. Interventions for BK virus infection in kidney transplant recipients. Cochrane Database Syst Rev 2024; 10:CD013344. [PMID: 39382091 PMCID: PMC11462636 DOI: 10.1002/14651858.cd013344.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/10/2024]
Abstract
BACKGROUND BK virus-associated nephropathy (BKVAN), caused by infection with or reactivation of BK virus, remains a challenge in kidney transplantation. Screening is recommended for all kidney transplant recipients. For those with clinically significant infection, reduction of immunosuppression is the cornerstone of management. There is no specific antiviral or immunomodulatory therapy sufficiently effective for routine use. OBJECTIVES This review aimed to examine the benefits and harms of interventions for BK virus infection in kidney transplant recipients. SEARCH METHODS We searched the Cochrane Kidney and Transplant Register of Studies up to 5 September 2024 through contact with the Information Specialist using search terms relevant to this review. Studies in the Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Registry Platform (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA All randomised controlled trials (RCTs) and cohort studies investigating any intervention for the treatment or prevention of BKVAN for kidney transplant recipients. DATA COLLECTION AND ANALYSIS Two authors independently assessed the study quality and extracted data. Summary estimates of effect were obtained using a random-effects model, and results were expressed as risk ratios (RR) and their 95% confidence intervals (CI) for dichotomous outcomes and mean difference (MD) and 95% CI for continuous outcomes. Confidence in the evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. MAIN RESULTS Twelve RCTs (2669 randomised participants) were included. Six studies were undertaken in single centres, and six were multicentre studies; two of these were international studies. The ages of those participating ranged from 44 to 57 years. The length of follow-up ranged from three months to five years. All studies included people with a kidney transplant, and three studies included people with signs of BK viraemia. Studies were heterogeneous in terms of the type of interventions and outcomes assessed. The overall risk of bias was low or unclear. Intensive screening for the early detection of BK viraemia or BK viruria prevents graft loss (1 study, 908 participants: RR 0.00, 95% CI 0.00 to 0.05) and decreases the presence of decoy cells and viraemia at 12 months (1 study, 908 participants: RR 0.06, 95% CI 0.03 to 0.11) compared to routine care (high certainty evidence). No other outcomes were reported. Compared to placebo, fluoroquinolones may slightly reduce the risk of graft loss (3 studies, 393 participants: RR 0.37, CI 0.09 to 1.57; I2 = 0%; low certainty evidence), probably makes little or no difference to donor-specific antibodies (DSA), may make little or no difference to BK viraemia and death, had uncertain effects on BKVAN and malignancy, but may increase the risk of tendonitis (2 studies, 193 participants: RR 5.66, CI 1.02 to 31.32; I2 = 0%; low certainty evidence). Compared to tacrolimus (TAC), cyclosporin (CSA) probably makes little or no difference to graft loss and death, may make little or no difference to BKVAN and malignancy, but probably decreases BK viraemia (2 studies, 263 participants: RR 0.61, 95% CI 0.26 to 1.41; I2 = 38%) and probably reduces the risk of new-onset diabetes after transplantation (1 study, 200 participants: RR 0.41, 95% CI 0.12 to 1.35) (both moderate certainty evidence). Compared to azathioprine, mycophenolate mofetil (MMF) probably makes little or no difference to graft loss and BK viraemia but probably reduces the risk of death (1 study, 133 participants: RR 0.43, 95% CI 0.16 to 1.16) and malignancy (1 study, 199 participants: RR 0.43, 95% CI 0.16 to 1.16) (both moderate certainty evidence). Compared to mycophenolate sodium (MPS), CSA has uncertain effects on graft loss and death, may make little or no difference to BK viraemia, but may reduce BKVAN (1 study, 224 participants: RR 0.06, 95% CI 0.00 to 1.20; low certainty evidence). Compared to immunosuppression dose reduction, MMF or TAC conversion to everolimus or sirolimus may make little or no difference to graft loss, BK viraemia or BKVAN (low certainty evidence). TAC conversion to sirolimus probably results in more people having a reduced BK viral load (< 600 copies/mL) than immunosuppression reduction (1 study, 30 participants: RR 1.31, 95% CI 0.90 to 1.89; moderate certainty evidence). Compared to MPS, everolimus had uncertain effects on graft loss and BK viraemia, may reduce BKVAN (1 study, 135 participants: 0.06, 95% CI 0.00 to 1.11) and may increase the risk of death (1 study, 135 participants: RR 3.71, 95% CI 0.20 to 67.35) (both low certainty evidence). Compared to CSA, everolimus may make little or no difference to BK viraemia, has uncertain effects on graft loss and BKVAN, but may increase the risk of death (1 study, 185 participants: RR 3.71, 95% CI 0.42 to 32.55; low certainty evidence). Compared to immunosuppression reduction, the leflunomide derivative FK778 may make little or no difference to graft loss, probably results in a greater reduction in plasma BK viral load (1 study, 44 participants: -0.60 copies/µL, 95% CI -1.22 to 0.02; moderate certainty evidence), but had uncertain effects on BKVAN and malignancy. Aggravated hypertension may be increased with KF778 (1 study, 46 participants: RR 8.23, 95% CI 0.50 to 135.40; low certainty evidence). There were no deaths in either group. AUTHORS' CONCLUSIONS Intense monitoring early after transplantation for BK viruria and BK viraemia is effective in improving BK virus infection outcomes as it helps with early detection of the infection and allows for a timely reduction in immunosuppression reduction. There is insufficient evidence to support any other intervention for BK virus infection in kidney transplant recipients.
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Affiliation(s)
- Zainab Wajih
- Renal and General Medicine, Bathurst Hospital (WNSWLHD), Bathurst, NSW, Australia
| | - Krishna M Karpe
- Department of Renal Medicine, The Canberra Hospital, Canberra, Australia
| | - Giles D Walters
- Department of Renal Medicine, The Canberra Hospital, Canberra, Australia
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Alasfar S, Me HM, Budhiraja P. Approach to Late Noninfectious Post-Transplant Complications. ADVANCES IN KIDNEY DISEASE AND HEALTH 2024; 31:436-449. [PMID: 39232614 DOI: 10.1053/j.akdh.2024.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/16/2024] [Accepted: 05/24/2024] [Indexed: 09/06/2024]
Abstract
The management of noninfectious complications in kidney transplant recipients includes a broad spectrum of conditions, including metabolic issues, cardiovascular diseases, and malignancies, each presenting unique challenges for nephrologists managing these patients. Unlike infectious complications, these noninfectious issues require nuanced, multidisciplinary approaches for prevention, diagnosis, and management, emphasizing the need for personalized care plans. Cardiovascular disease is particularly significant, standing as the primary cause of death post-transplantation, with recent data indicating an overtaking of cancer death rates over infections among kidney transplant recipients. The intricacies of managing these patients, influenced by the burden of kidney disease and immunosuppression, highlight the importance of a collaborative care model. Although nephrologists may not directly treat all these conditions, their understanding of the unique aspects of transplant recipients is crucial. They play a pivotal role in coordinating care with specialists such as cardiologists, endocrinologists, hematologists, and oncologists, ensuring comprehensive management that addresses these specific post-transplant complications. This review discusses the epidemiology, underlying mechanisms, clinical manifestations, and management strategies of various noninfectious complications post-kidney transplant, with a focus on cardiovascular, metabolic, oncologic, and hematologic complications.
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Affiliation(s)
- Sami Alasfar
- Mayo Clinic Arizona, Division of Nephrology, Department of Medicine, Phoenix, AZ.
| | - Hay Me Me
- Mayo Clinic Arizona, Division of Nephrology, Department of Medicine, Phoenix, AZ
| | - Pooja Budhiraja
- Mayo Clinic Arizona, Division of Nephrology, Department of Medicine, Phoenix, AZ
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3
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Berg T, Aehling NF, Bruns T, Welker MW, Weismüller T, Trebicka J, Tacke F, Strnad P, Sterneck M, Settmacher U, Seehofer D, Schott E, Schnitzbauer AA, Schmidt HH, Schlitt HJ, Pratschke J, Pascher A, Neumann U, Manekeller S, Lammert F, Klein I, Kirchner G, Guba M, Glanemann M, Engelmann C, Canbay AE, Braun F, Berg CP, Bechstein WO, Becker T, Trautwein C. S2k-Leitlinie Lebertransplantation der Deutschen Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselkrankheiten (DGVS) und der Deutschen Gesellschaft für Allgemein- und Viszeralchirurgie (DGAV). ZEITSCHRIFT FUR GASTROENTEROLOGIE 2024; 62:1397-1573. [PMID: 39250961 DOI: 10.1055/a-2255-7246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Affiliation(s)
- Thomas Berg
- Bereich Hepatologie, Medizinischen Klinik II, Universitätsklinikum Leipzig, Leipzig, Deutschland
| | - Niklas F Aehling
- Bereich Hepatologie, Medizinischen Klinik II, Universitätsklinikum Leipzig, Leipzig, Deutschland
| | - Tony Bruns
- Medizinische Klinik III, Universitätsklinikum Aachen, Aachen, Deutschland
| | - Martin-Walter Welker
- Medizinische Klinik I Gastroent., Hepat., Pneum., Endokrin. Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - Tobias Weismüller
- Klinik für Innere Medizin - Gastroenterologie und Hepatologie, Vivantes Humboldt-Klinikum, Berlin, Deutschland
| | - Jonel Trebicka
- Medizinische Klinik B für Gastroenterologie und Hepatologie, Universitätsklinikum Münster, Münster, Deutschland
| | - Frank Tacke
- Charité - Universitätsmedizin Berlin, Medizinische Klinik m. S. Hepatologie und Gastroenterologie, Campus Virchow-Klinikum (CVK) und Campus Charité Mitte (CCM), Berlin, Deutschland
| | - Pavel Strnad
- Medizinische Klinik III, Universitätsklinikum Aachen, Aachen, Deutschland
| | - Martina Sterneck
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Hamburg, Hamburg, Deutschland
| | - Utz Settmacher
- Klinik für Allgemein-, Viszeral- und Gefäßchirurgie, Universitätsklinikum Jena, Jena, Deutschland
| | - Daniel Seehofer
- Klinik für Viszeral-, Transplantations-, Thorax- und Gefäßchirurgie, Universitätsklinikum Leipzig, Leipzig, Deutschland
| | - Eckart Schott
- Klinik für Innere Medizin II - Gastroenterologie, Hepatologie und Diabetolgie, Helios Klinikum Emil von Behring, Berlin, Deutschland
| | | | - Hartmut H Schmidt
- Klinik für Gastroenterologie und Hepatologie, Universitätsklinikum Essen, Essen, Deutschland
| | - Hans J Schlitt
- Klinik und Poliklinik für Chirurgie, Universitätsklinikum Regensburg, Regensburg, Deutschland
| | - Johann Pratschke
- Chirurgische Klinik, Charité Campus Virchow-Klinikum - Universitätsmedizin Berlin, Berlin, Deutschland
| | - Andreas Pascher
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie, Universitätsklinikum Münster, Münster, Deutschland
| | - Ulf Neumann
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie, Universitätsklinikum Essen, Essen, Deutschland
| | - Steffen Manekeller
- Klinik und Poliklinik für Allgemein-, Viszeral-, Thorax- und Gefäßchirurgie, Universitätsklinikum Bonn, Bonn, Deutschland
| | - Frank Lammert
- Medizinische Hochschule Hannover (MHH), Hannover, Deutschland
| | - Ingo Klein
- Chirurgische Klinik I, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - Gabriele Kirchner
- Klinik und Poliklinik für Chirurgie, Universitätsklinikum Regensburg und Innere Medizin I, Caritaskrankenhaus St. Josef Regensburg, Regensburg, Deutschland
| | - Markus Guba
- Klinik für Allgemeine, Viszeral-, Transplantations-, Gefäß- und Thoraxchirurgie, Universitätsklinikum München, München, Deutschland
| | - Matthias Glanemann
- Klinik für Allgemeine, Viszeral-, Gefäß- und Kinderchirurgie, Universitätsklinikum des Saarlandes, Homburg, Deutschland
| | - Cornelius Engelmann
- Charité - Universitätsmedizin Berlin, Medizinische Klinik m. S. Hepatologie und Gastroenterologie, Campus Virchow-Klinikum (CVK) und Campus Charité Mitte (CCM), Berlin, Deutschland
| | - Ali E Canbay
- Medizinische Klinik, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Deutschland
| | - Felix Braun
- Klinik für Allgemeine Chirurgie, Viszeral-, Thorax-, Transplantations- und Kinderchirurgie, Universitätsklinikum Schlewswig-Holstein, Kiel, Deutschland
| | - Christoph P Berg
- Innere Medizin I Gastroenterologie, Hepatologie, Infektiologie, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - Wolf O Bechstein
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - Thomas Becker
- Klinik für Allgemeine Chirurgie, Viszeral-, Thorax-, Transplantations- und Kinderchirurgie, Universitätsklinikum Schlewswig-Holstein, Kiel, Deutschland
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Fassio A, Andreola S, Gatti D, Pollastri F, Gatti M, Fabbrini P, Gambaro G, Ferraro PM, Caletti C, Rossini M, Viapiana O, Bixio R, Adami G. Long-Term Bone Mineral Density Changes in Kidney Transplant Recipients Treated with Denosumab: A Retrospective Study with Nonequivalent Control Group. Calcif Tissue Int 2024; 115:23-30. [PMID: 38730099 PMCID: PMC11153264 DOI: 10.1007/s00223-024-01218-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/16/2024] [Indexed: 05/12/2024]
Abstract
Data on the effectiveness of denosumab on osteoporosis after kidney transplantation are limited. We investigated the long-term bone mineral density (BMD) changes in kidney transplant recipients (KTRs) treated with denosumab compared to untreated KTRs. We enrolled KTRs treated with denosumab 60 mg/6 months for 4 years. An untreated group of sex and age-matched KTRs with a 1:1 ratio was included. The primary outcome was BMD changes assessed by Dual-energy X-ray Absorptiometry over 4 years. Data on serum creatinine, alkaline phosphatase (ALP), parathyroid hormone, and 25-hydroxyvitamin D were collected. All patients received oral cholecalciferol and calcium supplementation. 23 denosumab-treated KTRs were enrolled, and 23 untreated KTRs. The median time from transplant to the start of denosumab was 4 years (range 0:24). The denosumab group showed a significant increase from baseline in BMD at the lumbar spine (LS) (9.0 ± 10.7%, p < 0.001), and total hip (TH) (3.8 ± 7.9%, p = 0.041). The untreated group showed a significant decrease at all sites (- 3.0 ± 7%, p = 0.041 at the LS; - 6.3 ± 9.2%, p = 0.003 at the TH; - 6.7 ± 9.3%, p = 0.003 at the FN). The between-group differences in percent BMD changes were statistically significant at all sites. Similar results were found for the respective Z-scores. The ALP serum levels significantly decreased from baseline only in the denosumab group, with a significant between-group difference (p = 0.032). No significant differences in serum creatinine, hypocalcaemic events or acute graft rejection rates were observed. Four years of denosumab therapy were associated with increased BMD in KTRs, while untreated KTRs showed significant BMD losses at all sites.
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Affiliation(s)
- Angelo Fassio
- Rheumatology Unit, University of Verona, Verona, Italy.
- Rheumatology Unit, Policlinico GB Rossi, 37134, Verona, Italy.
| | | | - Davide Gatti
- Rheumatology Unit, University of Verona, Verona, Italy
| | | | - Matteo Gatti
- Rheumatology Unit, University of Verona, Verona, Italy
- Department of Nephrology and Dialysis, Ospedale Bassini, ASST Nord Milano-Cinisello Balsamo, Milan, Italy
| | - Paolo Fabbrini
- Department of Nephrology and Dialysis, Ospedale Bassini, ASST Nord Milano-Cinisello Balsamo, Milan, Italy
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5
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Jaikaransingh V. Bone health and fracture prevention after kidney transplantation. J Clin Transl Endocrinol 2024; 36:100345. [PMID: 38737624 PMCID: PMC11081796 DOI: 10.1016/j.jcte.2024.100345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 05/14/2024] Open
Abstract
Changes in bone health and strength are common after kidney transplantation and can lead to an increased risk of fracture. This has implications for morbidity, mortality and renal allograft survival. This review will focus on the changes that occur in bone health and fracture risk after kidney transplantation and examine the evidence available to guide diagnostic and therapeutic decisions with the aim of fracture prevention.
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Affiliation(s)
- Vishal Jaikaransingh
- University of Florida College of Medicine – Jacksonville, Department of Medicine, Division of Nephrology, United States
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6
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Kim DS, Yoon YI, Kim BK, Choudhury A, Kulkarni A, Park JY, Kim J, Sinn DH, Joo DJ, Choi Y, Lee JH, Choi HJ, Yoon KT, Yim SY, Park CS, Kim DG, Lee HW, Choi WM, Chon YE, Kang WH, Rhu J, Lee JG, Cho Y, Sung PS, Lee HA, Kim JH, Bae SH, Yang JM, Suh KS, Al Mahtab M, Tan SS, Abbas Z, Shresta A, Alam S, Arora A, Kumar A, Rathi P, Bhavani R, Panackel C, Lee KC, Li J, Yu ML, George J, Tanwandee T, Hsieh SY, Yong CC, Rela M, Lin HC, Omata M, Sarin SK. Asian Pacific Association for the Study of the Liver clinical practice guidelines on liver transplantation. Hepatol Int 2024; 18:299-383. [PMID: 38416312 DOI: 10.1007/s12072-023-10629-3] [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: 05/15/2023] [Accepted: 12/18/2023] [Indexed: 02/29/2024]
Abstract
Liver transplantation is a highly complex and challenging field of clinical practice. Although it was originally developed in western countries, it has been further advanced in Asian countries through the use of living donor liver transplantation. This method of transplantation is the only available option in many countries in the Asia-Pacific region due to the lack of deceased organ donation. As a result of this clinical situation, there is a growing need for guidelines that are specific to the Asia-Pacific region. These guidelines provide comprehensive recommendations for evidence-based management throughout the entire process of liver transplantation, covering both deceased and living donor liver transplantation. In addition, the development of these guidelines has been a collaborative effort between medical professionals from various countries in the region. This has allowed for the inclusion of diverse perspectives and experiences, leading to a more comprehensive and effective set of guidelines.
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Affiliation(s)
- Dong-Sik Kim
- Department of Surgery, Korea University College of Medicine, Seoul, Republic of Korea
| | - Young-In Yoon
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Beom Kyung Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | | | | | - Jun Yong Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jongman Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Dong Hyun Sinn
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Dong Jin Joo
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - YoungRok Choi
- Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ho Joong Choi
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ki Tae Yoon
- Department of Internal Medicine, Pusan National University College of Medicine, Yangsan, Republic of Korea
| | - Sun Young Yim
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Cheon-Soo Park
- Department of Surgery, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Deok-Gie Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hae Won Lee
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Won-Mook Choi
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young Eun Chon
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Woo-Hyoung Kang
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jinsoo Rhu
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jae Geun Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yuri Cho
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Ilsan, Republic of Korea
| | - Pil Soo Sung
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Han Ah Lee
- Department of Internal Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Ji Hoon Kim
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Si Hyun Bae
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jin Mo Yang
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
| | - Kyung-Suk Suh
- Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - Mamun Al Mahtab
- Department of Hepatology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Soek Siam Tan
- Department of Medicine, Hospital Selayang, Batu Caves, Selangor, Malaysia
| | - Zaigham Abbas
- Sindh Institute of Urology and Transplantation, Karachi, Pakistan
| | - Ananta Shresta
- Department of Hepatology, Alka Hospital, Lalitpur, Nepal
| | - Shahinul Alam
- Crescent Gastroliver and General Hospital, Dhaka, Bangladesh
| | - Anil Arora
- Department of Gastroenterology and Hepatology, Sir Ganga Ram Hospital New Delhi, New Delhi, India
| | - Ashish Kumar
- Department of Gastroenterology and Hepatology, Sir Ganga Ram Hospital New Delhi, New Delhi, India
| | - Pravin Rathi
- TN Medical College and BYL Nair Hospital, Mumbai, India
| | - Ruveena Bhavani
- University of Malaya Medical Centre, Petaling Jaya, Selangor, Malaysia
| | | | - Kuei Chuan Lee
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jun Li
- College of Medicine, Zhejiang University, Hangzhou, China
| | - Ming-Lung Yu
- Department of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | | | | | | | | | | | - H C Lin
- Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Masao Omata
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan
- University of Tokyo, Bunkyo City, Japan
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7
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Kim KJ, Ha J, Kim SW, Kim JE, Lee S, Choi HS, Hong N, Kong SH, Ahn SH, Park SY, Baek KH. Bone Loss after Solid Organ Transplantation: A Review of Organ-Specific Considerations. Endocrinol Metab (Seoul) 2024; 39:267-282. [PMID: 38693817 PMCID: PMC11066446 DOI: 10.3803/enm.2024.1939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/23/2024] [Accepted: 02/28/2024] [Indexed: 05/03/2024] Open
Abstract
This review article investigates solid organ transplantation-induced osteoporosis, a critical yet often overlooked issue, emphasizing its significance in post-transplant care. The initial sections provide a comprehensive understanding of the prevalence and multifactorial pathogenesis of transplantation osteoporosis, including factors such as deteriorating post-transplantation health, hormonal changes, and the impact of immunosuppressive medications. Furthermore, the review is dedicated to organ-specific considerations in transplantation osteoporosis, with separate analyses for kidney, liver, heart, and lung transplantations. Each section elucidates the unique challenges and management strategies pertinent to transplantation osteoporosis in relation to each organ type, highlighting the necessity of an organ-specific approach to fully understand the diverse manifestations and implications of transplantation osteoporosis. This review underscores the importance of this topic in transplant medicine, aiming to enhance awareness and knowledge among clinicians and researchers. By comprehensively examining transplantation osteoporosis, this study contributes to the development of improved management and care strategies, ultimately leading to improved patient outcomes in this vulnerable group. This detailed review serves as an essential resource for those involved in the complex multidisciplinary care of transplant recipients.
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Affiliation(s)
- Kyoung Jin Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Jeonghoon Ha
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sang Wan Kim
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Jung-Eun Kim
- Department of Molecular Medicine, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Sihoon Lee
- Department of Internal Medicine, Gachon University College of Medicine, Incheon, Korea
| | - Han Seok Choi
- Department of Internal Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang, Korea
| | - Namki Hong
- Department of Internal Medicine, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Hye Kong
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Seong Hee Ahn
- Department of Endocrinology and Metabolism, Inha University Hospital, Inha University College of Medicine, Incheon, Korea
| | - So Young Park
- Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Ki-Hyun Baek
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - on Behalf of Metabolic Bone Disease Study Group of Korean Endocrine Society
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
- Department of Molecular Medicine, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Korea
- Department of Internal Medicine, Gachon University College of Medicine, Incheon, Korea
- Department of Internal Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang, Korea
- Department of Internal Medicine, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Endocrinology and Metabolism, Inha University Hospital, Inha University College of Medicine, Incheon, Korea
- Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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8
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Teh JW, Mac Gearailt C, Lappin DWP. Post-Transplant Bone Disease in Kidney Transplant Recipients: Diagnosis and Management. Int J Mol Sci 2024; 25:1859. [PMID: 38339137 PMCID: PMC10856017 DOI: 10.3390/ijms25031859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 01/24/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
Kidney transplantation is the preferred gold standard modality of treatment for kidney failure. Bone disease after kidney transplantation is highly prevalent in patients living with a kidney transplant and is associated with high rates of hip fractures. Fractures are associated with increased healthcare costs, morbidity and mortality. Post-transplant bone disease (PTBD) includes renal osteodystrophy, osteoporosis, osteonecrosis and bone fractures. PTBD is complex as it encompasses pre-existing chronic kidney disease-mineral bone disease and compounding factors after transplantation, including the use of immunosuppression and the development of de novo bone disease. After transplantation, the persistence of secondary and tertiary hyperparathyroidism, renal osteodystrophy, relative vitamin D deficiency and high levels of fibroblast growth factor-23 contribute to post-transplant bone disease. Risk assessment includes identifying both general risk factors and kidney-specific risk factors. Diagnosis is complex as the gold standard bone biopsy with double-tetracycline labelling to diagnose the PTBD subtype is not always readily available. Therefore, alternative diagnostic tools may be used to aid its diagnosis. Both non-pharmacological and pharmacological therapy can be employed to treat PTBD. In this review, we will discuss pathophysiology, risk assessment, diagnosis and management strategies to manage PTBD after kidney transplantation.
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Affiliation(s)
- Jia Wei Teh
- Department of Nephrology, Galway University Hospital, H91 YR71 Galway, Ireland
| | - Conall Mac Gearailt
- Department of Rheumatology, Galway University Hospital, H91 YR71 Galway, Ireland
| | - David W. P. Lappin
- Department of Nephrology, Galway University Hospital, H91 YR71 Galway, Ireland
- School of Medicine, University of Galway, H91 TK33 Galway, Ireland
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9
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Kumar SE, Cherian KE, Paul TV, Goel A. Caring for the Bone Health Among Liver Transplant Recipients. J Clin Exp Hepatol 2023; 13:1130-1139. [PMID: 37975037 PMCID: PMC10643275 DOI: 10.1016/j.jceh.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/04/2023] [Indexed: 11/19/2023] Open
Abstract
Liver transplant outcomes have improved over the years, and currently, the quality of life and long-term well-being of these patients needs to be improved. Improving bone health goes a long way toward achieving this objective. Poor bone health (osteopenia and osteoporosis) although prevalent, is often overlooked owing to its asymptomatic nature. It can be complicated by debilitating fracture affecting quality of life. It is recommended to assess and optimize bone health prior to liver transplant. Multiple factors contribute to poor bone health in a liver transplant recipient and it is vital to understand and ameliorate these. A careful and targeted approach with inputs from multidisciplinary team involving transplant physician, endocrinologist, occupational therapist, nutritionist, and nursing personnel may often be required. In this review, we aim to concisely discuss the various aspects related to prevalence, pathophysiology, evaluation, treatment, and follow-up of bone disease among liver transplant recipients.
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Affiliation(s)
- Santhosh E. Kumar
- Department of Hepatology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Kripa E. Cherian
- Department of Endocrinology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Thomas V. Paul
- Department of Endocrinology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Ashish Goel
- Department of Hepatology, Christian Medical College, Vellore, Tamil Nadu, India
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10
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Leng Y, Yu X, Yang Y, Xia Y. Efficacy and safety of medications for osteoporosis in kidney transplant recipients or patients with chronic kidney disease: A meta-analysis. J Investig Med 2023; 71:760-772. [PMID: 37387531 DOI: 10.1177/10815589231184215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
This study conducted a meta-analysis to analyze the efficacy and safety of osteoporosis medications in kidney transplant recipients and patients with chronic kidney disease (CKD). PubMed, Embase, the Cochrane Central Register of Controlled Trials were searched from the date of their inception through October 21, 2022. We performed a meta-analysis of the efficacy and safety of osteoporosis medications in adult patients with stage 3-5 CKD or kidney transplant recipients enrolled in randomized clinical trials (RCTs). We calculated the standard mean deviations with 95% confidence intervals (CI) for bone mineral density (BMD) and T scores after 6 and 12 months treatment, pooled odds ratio and 95% CI for fracture risk, and summarized adverse events. The inclusion criteria were met by 27 studies. Out of this, 19 studies were included for the meta-analysis. In stage 3-4 CKD patients, alendronate increased lumbar spine BMD. In patients at stage 5 CKD and undergoing hemodialysis, alendronate and raloxifene increased lumbar spine BMD. After 6 months, the BMD of kidney transplant recipients was seen to be significantly increased; however, there was no difference after 12 months, and the risk of fracture did not reduce. Thus, there is no evidence that these medications reduce the risk of fracture, and their effect on BMD and fracture remains unproven. These medications may increase the incidence of adverse events and their safety needs to be further evaluated. Therefore, we cannot draw a definitive conclusion about the efficacy and safety of osteoporosis medications in the above group of patients.
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Affiliation(s)
- Yunji Leng
- Phase I Clinical Trial Center, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xian Yu
- Phase I Clinical Trial Center, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yi Yang
- Phase I Clinical Trial Center, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yifan Xia
- Department of Joint Surgery, Chongqing General Hospital, Chongqing, China
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11
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Abduelkarem AR, Guella A, Hamrouni AM, Hassanein MM, Nasr A, Rana O. Denosumab Use in Chronic Kidney Disease Associated Osteoporosis: A Narrative Review. Risk Manag Healthc Policy 2023; 16:1809-1813. [PMID: 37719685 PMCID: PMC10503558 DOI: 10.2147/rmhp.s426869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/06/2023] [Indexed: 09/19/2023] Open
Abstract
Chronic kidney disease (CKD) and hemodialysis (HD) patients have a high incidence of bone disease and increased fracture risk, making effective management of their bone health a clinical challenge. Denosumab, a human monoclonal antibody, has been investigated as a therapeutic option in this patient population. In this review, we summarize the current evidence on the efficacy and safety of denosumab in CKD and HD patients. A comprehensive search of the relevant literature was conducted, including randomized controlled trials, observational studies, and meta-analyses. The findings suggest that denosumab reduces the risk of fractures and improves bone mineral density in all stages of CKD. The results of this review support the use of denosumab as a promising option for managing bone disease in CKD and HD patients.
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Affiliation(s)
- Abduelmula R Abduelkarem
- Department of Pharmacy Practice and Pharmacotherapeutics, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Adnane Guella
- Department of Nephrology, University Hospital Sharjah, Sharjah, United Arab Emirates
| | - Amar M Hamrouni
- Department of Pharmaceutical Sciences, College of Pharmacy, Al Ain University, Al Ain, United Arab Emirates
| | - Mohammed M Hassanein
- Department of Pharmacy Practice and Pharmacotherapeutics, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | - Ahmed Nasr
- Pharmacy Department, University Hospital Sharjah, Sharjah, United Arab Emirates
| | - Owais Rana
- Department of Internal Medicine, University Hospital Sharjah, Sharjah, United Arab Emirates
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12
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Sayed SA, El Wakeel LM, Elseasi AM, Shawki MA. Evaluation of the efficacy and tolerability of alendronate versus denosumab in kidney transplant patients with reduced bone mineral density. Pharmacotherapy 2023; 43:904-912. [PMID: 37323099 DOI: 10.1002/phar.2838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 06/17/2023]
Abstract
PURPOSE To compare the effect of denosumab and alendronate on bone mineral density (BMD) in renal transplant recipients (RTRs) with low bone mass. METHODS Patients were randomized to receive either denosumab subcutaneously (60 mg/6 months), oral alendronate (70 mg/week), or no treatment for 1 year. The three groups were prescribed daily calcium and vitamin D. Primary outcome was BMD assessed at lumbar spine, hip, and radius and measured by dual-energy X-ray absorptiometry (DEXA) at baseline and after 6 and 12 months. Adverse events and laboratory assessments (calcium, phosphate, vitamin D, renal functions, and intact parathyroid hormone) were monitored for all patients. Quality of life was assessed at baseline and after 6 and 12 months for all patients. RESULTS Ninety RTRs were included in the study (30 in each group). Baseline clinical characteristics and BMD values were comparable in the three groups. After 12 months, lumbar spine T-score of patients treated with denosumab and alendronate showed a median increase of 0.5 [95% confidence interval (CI): 0.4-0.6] and 0.5 (95% CI: 0.4-0.8), respectively, and patients in the control group showed a decrease of -0.2 (95% CI: -0.3 to -0.1), p < 0.001. Denosumab and alendronate showed a significant comparable gain in T-scores at hip and radius versus a significant decrease in the control group. Adverse events and laboratory values were similar in the three groups. Both treatments resulted in comparable significant improvement in physical functioning, physical role limitations, vitality, and pain scores. CONCLUSION Denosumab and alendronate showed comparable efficacy in improving BMD at all measured skeletal sites and were safe and well-tolerated, with no serious adverse effects reported in RTRs with low bone mass. The study was registered on ClinicalTrials.gov, number NCT04169698.
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Affiliation(s)
- Sherihan A Sayed
- Clinical Pharmacy Department, Faculty of Pharmacy, Nahda University, Beni-suef, Egypt
| | - Lamia M El Wakeel
- Clinical Pharmacy Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Ahmad M Elseasi
- Internal Medicine and Nephrology Department, National Institute of Urology and Nephrology, Cairo, Egypt
| | - May A Shawki
- Clinical Pharmacy Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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13
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Torregrosa JV, Bover J, Rodríguez Portillo M, González Parra E, Dolores Arenas M, Caravaca F, González Casaus ML, Martín-Malo A, Navarro-González JF, Lorenzo V, Molina P, Rodríguez M, Cannata Andia J. Recommendations of the Spanish Society of Nephrology for the management of mineral and bone metabolism disorders in patients with chronic kidney disease: 2021 (SEN-MM). Nefrologia 2023; 43 Suppl 1:1-36. [PMID: 37202281 DOI: 10.1016/j.nefroe.2023.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/26/2022] [Indexed: 05/20/2023] Open
Abstract
As in 2011, when the Spanish Society of Nephrology (SEN) published the Spanish adaptation to the Kidney Disease: Improving Global Outcomes (KDIGO) universal Guideline on Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD), this document contains an update and an adaptation of the 2017 KDIGO guidelines to our setting. In this field, as in many other areas of nephrology, it has been impossible to irrefutably answer many questions, which remain pending. However, there is no doubt that the close relationship between the CKD-MBD/cardiovascular disease/morbidity and mortality complex and new randomised clinical trials in some areas and the development of new drugs have yielded significant advances in this field and created the need for this update. We would therefore highlight the slight divergences that we propose in the ideal objectives for biochemical abnormalities in the CKD-MBD complex compared to the KDIGO suggestions (for example, in relation to parathyroid hormone or phosphate), the role of native vitamin D and analogues in the control of secondary hyperparathyroidism and the contribution of new phosphate binders and calcimimetics. Attention should also be drawn to the adoption of important new developments in the diagnosis of bone abnormalities in patients with kidney disease and to the need to be more proactive in treating them. In any event, the current speed at which innovations are taking place, while perhaps slower than we might like, globally drives the need for more frequent updates (for example, through Nefrología al día).
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Affiliation(s)
| | - Jordi Bover
- Hospital Germans Trias i Pujol, Badalona, Spain
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14
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Tsai TY, You ZH, Tsai SF, Wu MJ, Yu TM, Chuang YW, Lin YC, Deng YL, Hsu CY, Chen CH. Adverse Effects of Denosumab in Kidney Transplant Recipients: A 20-Year Retrospective Single-Center Observation Study in Central Taiwan. Transplant Proc 2023:S0041-1345(23)00145-8. [PMID: 37055293 DOI: 10.1016/j.transproceed.2023.03.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/13/2023] [Indexed: 04/15/2023]
Abstract
BACKGROUND Bone loss can be noted in kidney transplantation recipients (KTRs) and can be related to fracture events. Denosumab, a potent monoclonal antibody to RANK ligand, increases lumbar bone mineral density. However, safety data for denosumab remain limited regarding transplant recipients. Hypocalcemia and increased genital tract infections have been mentioned as adverse effects in KTRs after being prescribed denosumab. METHODS We retrospectively analyzed the electronic medical records of KTRs during the recent 20 years who had been prescribed antiresorptive therapy and were >18 years old. Medical records and their clinical data were reviewed and analyzed. We compared the frequency of adverse effects between denosumab with other antiresorptive therapies. RESULTS A total of 70 KTRs were enrolled, with 46 patients being given denosumab and the first injection being noted on October 31, 2014. No significant differences were seen in mortality rate, opportunistic infection, pneumonia, or genitourinary tract infection. One diagnosis of osteonecrosis of the jaw was noted in the denosumab group (2.2%). A higher incidence of hypocalcemia (<8.4 mg/dL) was noted in the denosumab group (34.8%), and a higher but nonsignificant difference in the incidence of severe hypocalcemia was also noted in the group. CONCLUSIONS Denosumab may be considered as safe as other antiresorptive therapies for KTRs. However, more hypocalcemia events have been noted, so medical personnel may need to be cautious when prescribing its use.
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Affiliation(s)
- Tsung-Yin Tsai
- Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan; Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital Chiayi Branch, Chiayi, Taiwan
| | - Zi-Hong You
- Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital Chiayi Branch, Chiayi, Taiwan
| | - Shang-Feng Tsai
- Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan; Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Ming-Ju Wu
- Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan; Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan; School of Medicine, China Medical University, Taichung, Taiwan
| | - Tung-Min Yu
- Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ya-Wen Chuang
- Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yung-Chieh Lin
- Department of Urology, Hsinchu Branch, MacKay Memorial Hospital, New Taipei, Taiwan
| | - Ya-Lian Deng
- Department of Nursing, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chiann-Yi Hsu
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Cheng-Hsu Chen
- Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan; Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan; Department of Life Science, Tunghai University, Taichung, Taiwan; School of Medicine, China Medical University, Taichung, Taiwan.
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15
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Schini M, Vilaca T, Gossiel F, Salam S, Eastell R. Bone Turnover Markers: Basic Biology to Clinical Applications. Endocr Rev 2022; 44:417-473. [PMID: 36510335 PMCID: PMC10166271 DOI: 10.1210/endrev/bnac031] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 11/26/2022] [Accepted: 12/05/2022] [Indexed: 12/15/2022]
Abstract
Bone turnover markers (BTMs) are used widely, in both research and clinical practice. In the last 20 years, much experience has been gained in measurement and interpretation of these markers, which include commonly used bone formation markers bone alkaline phosphatase, osteocalcin, and procollagen I N-propeptide; and commonly used resorption markers serum C-telopeptides of type I collagen, urinary N-telopeptides of type I collagen and tartrate resistant acid phosphatase type 5b. BTMs are usually measured by enzyme-linked immunosorbent assay or automated immunoassay. Sources contributing to BTM variability include uncontrollable components (e.g., age, gender, ethnicity) and controllable components, particularly relating to collection conditions (e.g., fasting/feeding state, and timing relative to circadian rhythms, menstrual cycling, and exercise). Pregnancy, season, drugs, and recent fracture(s) can also affect BTMs. BTMs correlate with other methods of assessing bone turnover, such as bone biopsies and radiotracer kinetics; and can usefully contribute to diagnosis and management of several diseases such as osteoporosis, osteomalacia, Paget's disease, fibrous dysplasia, hypophosphatasia, primary hyperparathyroidism, and chronic kidney disease-mineral bone disorder.
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Affiliation(s)
- Marian Schini
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK.,Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Tatiane Vilaca
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
| | - Fatma Gossiel
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
| | - Syazrah Salam
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK.,Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Richard Eastell
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
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16
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Denosumab treatment for osteopenia or osteoporosis in heart transplant recipients: Effects and safety. TRANSPLANTATION REPORTS 2022. [DOI: 10.1016/j.tpr.2022.100103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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17
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Löfdahl E, Rådegran G, Fagher K. Bone health and cardiac transplantation. Best Pract Res Clin Rheumatol 2022; 36:101770. [PMID: 36127249 DOI: 10.1016/j.berh.2022.101770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Patients who undergo heart transplantation (HT) have increased loss of bone mineral density (BMD) [g/cm2]. The greatest drop in BMD occurs within the first year after HT with a decrease 3.5-8.5% in the lumbar spine and 5.6-10.5% in the femoral neck. Thereafter, BMD tend to stabilize or even recover to some degree. Accordingly, risk of fracture correlates to BMD evolution, with the highest rate of fractures during the first year, with a cumulative incidence of 12-36%. Fragility fractures contributes to increased morbidity and increased mortality. The pathophysiology behind BMD impairment in HT patients is complex and involves side-effects of the immunosuppressive therapy and of heart failure medications, as well as organ failure. Of the immunosuppressive agents, corticosteroids (CS) exerts the greatest impact on BMD through multiple cellular pathways. Also, calcineurin inhibitors seem have a negative impact on BMD, mainly mediated through enhancement of bone resorption. Additionally, kidney dysfunction has a significant effect on bone homeostasis and is frequently present in HT patients. The optimal timing and type of pharmacological treatment of osteoporosis in HT patients are not yet known. However, bisphosphonates and monoclonal antibody against RANK ligand (Denosumab) may have beneficial effects on bone metabolism in HT patients. However, their efficacy and safety in have not been thoroughly studied in this particular patient population. Therefore, careful individual evaluation of prescription, frequency, and possible treatment options is advisable in this patient population.
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Affiliation(s)
- Eveline Löfdahl
- Department of Clinical Sciences Lund, Lund University, Sweden; The Section for Heart Failure and Valvular Disease, VO. Heart and Lung Medicine, Skåne University Hospital, Lund, Sweden.
| | - Göran Rådegran
- Department of Clinical Sciences Lund, Lund University, Sweden; The Section for Heart Failure and Valvular Disease, VO. Heart and Lung Medicine, Skåne University Hospital, Lund, Sweden
| | - Katarina Fagher
- Department of Clinical Sciences Lund, Lund University, Sweden; Department of Endocrinology, Skåne University Hospital, Sweden
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18
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Alkaline Phosphatase: An Old Friend as Treatment Target for Cardiovascular and Mineral Bone Disorders in Chronic Kidney Disease. Nutrients 2022; 14:nu14102124. [PMID: 35631265 PMCID: PMC9144546 DOI: 10.3390/nu14102124] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 11/17/2022] Open
Abstract
Alkaline phosphatase (ALP) is an evolutionary conserved enzyme and widely used biomarker in clinical practice. Tissue-nonspecific alkaline phosphatase (TNALP) is one of four human isozymes that are expressed as distinct TNALP isoforms after posttranslational modifications, mainly in bone, liver, and kidney tissues. Beyond the well-known effects on bone mineralization, the bone ALP (BALP) isoforms (B/I, B1, B1x, and B2) are also involved in the pathogenesis of ectopic calcification. This narrative review summarizes the recent clinical investigations and mechanisms that link ALP and BALP to inflammation, metabolic syndrome, vascular calcification, endothelial dysfunction, fibrosis, cardiovascular disease, and mortality. The association between ALP, vitamin K, bone metabolism, and fracture risk in patients with chronic kidney disease (CKD) is also discussed. Recent advances in different pharmacological strategies are highlighted, with the potential to modulate the expression of ALP directly and indirectly in CKD–mineral and bone disorder (CKD-MBD), e.g., epigenetic modulation, phosphate binders, calcimimetics, vitamin D, and other anti-fracture treatments. We conclude that the significant evidence for ALP as a pathogenic factor and risk marker in CKD-MBD supports the inclusion of concrete treatment targets for ALP in clinical guidelines. While a target value below 120 U/L is associated with improved survival, further experimental and clinical research should explore interventional strategies with optimal risk–benefit profiles. The future holds great promise for novel drug therapies modulating ALP.
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Molinari P, Alfieri CM, Mattinzoli D, Campise M, Cervesato A, Malvica S, Favi E, Messa P, Castellano G. Bone and Mineral Disorder in Renal Transplant Patients: Overview of Pathology, Clinical, and Therapeutic Aspects. Front Med (Lausanne) 2022; 9:821884. [PMID: 35360722 PMCID: PMC8960161 DOI: 10.3389/fmed.2022.821884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/08/2022] [Indexed: 12/25/2022] Open
Abstract
Renal transplantation (RTx) allows us to obtain the resolution of the uremic status but is not frequently able to solve all the metabolic complications present during end-stage renal disease. Mineral and bone disorders (MBDs) are frequent since the early stages of chronic kidney disease (CKD) and strongly influence the morbidity and mortality of patients with CKD. Some mineral metabolism (MM) alterations can persist in patients with RTx (RTx-p), as well as in the presence of complete renal function recovery. In those patients, anomalies of calcium, phosphorus, parathormone, fibroblast growth factor 23, and vitamin D such as bone and vessels are frequent and related to both pre-RTx and post-RTx specific factors. Many treatments are present for the management of post-RTx MBD. Despite that, the guidelines that can give clear directives in MBD treatment of RTx-p are still missed. For the future, to obtain an ever-greater individualisation of therapy, an increase of the evidence, the specificity of international guidelines, and more uniform management of these anomalies worldwide should be expected. In this review, the major factors related to post-renal transplant MBD (post-RTx-MBD), the main mineral metabolism biochemical anomalies, and the principal treatment for post-RTx MBD will be reported.
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Affiliation(s)
- Paolo Molinari
- Department of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Policlinico, Milan, Italy
| | - Carlo Maria Alfieri
- Department of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Policlinico, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- *Correspondence: Carlo Maria Alfieri ;
| | - Deborah Mattinzoli
- Renal Research Laboratory Fondazione IRCCS Ca' Granda Ospedale Policlinico, Milan, Italy
| | - Mariarosaria Campise
- Department of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Policlinico, Milan, Italy
| | - Angela Cervesato
- Department of Nephrology, Clinical and Translational Sciences, Università degli Studi della Campania L.Vanvitelli, Naples, Italy
| | - Silvia Malvica
- Department of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Policlinico, Milan, Italy
| | - Evaldo Favi
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Department of General Surgery, Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Piergiorgio Messa
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Giuseppe Castellano
- Department of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Policlinico, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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20
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Ebeling PR, Nguyen HH, Aleksova J, Vincent AJ, Wong P, Milat F. Secondary Osteoporosis. Endocr Rev 2022; 43:240-313. [PMID: 34476488 DOI: 10.1210/endrev/bnab028] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 02/07/2023]
Abstract
Osteoporosis is a global public health problem, with fractures contributing to significant morbidity and mortality. Although postmenopausal osteoporosis is most common, up to 30% of postmenopausal women, > 50% of premenopausal women, and between 50% and 80% of men have secondary osteoporosis. Exclusion of secondary causes is important, as treatment of such patients often commences by treating the underlying condition. These are varied but often neglected, ranging from endocrine to chronic inflammatory and genetic conditions. General screening is recommended for all patients with osteoporosis, with advanced investigations reserved for premenopausal women and men aged < 50 years, for older patients in whom classical risk factors for osteoporosis are absent, and for all patients with the lowest bone mass (Z-score ≤ -2). The response of secondary osteoporosis to conventional anti-osteoporosis therapy may be inadequate if the underlying condition is unrecognized and untreated. Bone densitometry, using dual-energy x-ray absorptiometry, may underestimate fracture risk in some chronic diseases, including glucocorticoid-induced osteoporosis, type 2 diabetes, and obesity, and may overestimate fracture risk in others (eg, Turner syndrome). FRAX and trabecular bone score may provide additional information regarding fracture risk in secondary osteoporosis, but their use is limited to adults aged ≥ 40 years and ≥ 50 years, respectively. In addition, FRAX requires adjustment in some chronic conditions, such as glucocorticoid use, type 2 diabetes, and HIV. In most conditions, evidence for antiresorptive or anabolic therapy is limited to increases in bone mass. Current osteoporosis management guidelines also neglect secondary osteoporosis and these existing evidence gaps are discussed.
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Affiliation(s)
- Peter R Ebeling
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Victoria 3168, Australia.,Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia
| | - Hanh H Nguyen
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Victoria 3168, Australia.,Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Department of Endocrinology and Diabetes, Western Health, Victoria 3011, Australia
| | - Jasna Aleksova
- Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Hudson Institute of Medical Research, Clayton, Victoria 3168, Australia
| | - Amanda J Vincent
- Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Monash Centre for Health Research and Implementation, School of Public Health and Preventative Medicine, Monash University, Clayton, Victoria 3168, Australia
| | - Phillip Wong
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Victoria 3168, Australia.,Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Hudson Institute of Medical Research, Clayton, Victoria 3168, Australia
| | - Frances Milat
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Victoria 3168, Australia.,Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Hudson Institute of Medical Research, Clayton, Victoria 3168, Australia
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21
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Chen CH, Lo WC, Hu P, Chan HC, Shen WC, Wu MS, Wu MY. Efficacy of Osteoporosis Medications for Patients With Chronic Kidney Disease: An Updated Systematic Review and Network Meta-Analysis. Front Pharmacol 2022; 13:822178. [PMID: 35222037 PMCID: PMC8873386 DOI: 10.3389/fphar.2022.822178] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/13/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Chronic kidney disease (CKD) is associated with bone and mineral metabolism. In this study we evaluated the comparative efficacies and safety of osteoporosis medications in patients with CKD or a history of kidney transplantation, and make recommendations for the best choice of osteoporosis treatment among patients with CKD or a history of kidney transplantation. Methods: We systemically searched for randomized controlled trials published in PubMed, Embase, and Cochrane databases up to June 2020. Network-meta analysis was used to compare the relative effectiveness of different treatments. A random-effects model was used when heterogeneity was expected. The safety of different treatments was also evaluated in terms of reported major adverse events. Results: A total of 17 studies with data from 10,214 patients who had stage 2-5 CKD, were receiving dialysis, or had a history of kidney transplantation were included in the network meta-analysis. Treatment with teriparatide, denosumab, alendronate, and raloxifene were all associated with a significantly reduced risk of fractures compared to treatment with placebos [teriparatide: odds ratio (OR) = 0.19, 95% confidence interval (CI): 0.10-0.35; denosumab: OR = 0.40, 95% CI: 0.27-0.58; alendronate: OR = 0.61, 95% CI: 0.40-0.92; raloxifene: OR = 0.52, 95% CI: 0.41-0.67]. The rank probability and the surface under the cumulative ranking (SUCRA) values suggested that teriparatide ranked the highest for improvement in vertebral bone mineral density (BMD) (SUCRA = 97.8%), whereas denosumab ranked the highest for improvement in femoral neck BMD (SUCRA = 88.3%). Conclusion: Teriparatide and denosumab seem to be the most effective treatments for preventing bone loss and reducing the risk of fracture in our network comparison. However, because of the limitations and potential biases in the reviewed studies, there is still some uncertainty about the best treatment options for osteoporosis in patients with CKD or a history of kidney transplantation. Systematic Review Registration: [PROSPERO], identifier [CRD42020209830].
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Affiliation(s)
- Chia-Hsien Chen
- Department of Orthopedics, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Orthopedic Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Wei-Cheng Lo
- Master Program in Applied Epidemiology, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Ping‐Jen Hu
- Division of Gastroenterology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Master’s Program in Biomedicine, College of Science and Engineering, National Taitung University, Taitung, Taiwan
| | - Hsiu-Chen Chan
- Department of Pharmacy, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Wan-Chen Shen
- Department of Pharmacy, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Mai-Szu Wu
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Taipei Medical University Research Center of Urology and Kidney, Taipei Medical University, Taipei, Taiwan
| | - Mei-Yi Wu
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Taipei Medical University Research Center of Urology and Kidney, Taipei Medical University, Taipei, Taiwan
- College of Public Health, Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
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22
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Lavainne F, Guillot P, Figueres L. Troubles minéraux et osseux dans la maladie rénale chronique : physiopathologie, conséquences et prise en charge. Rev Med Interne 2022; 43:225-232. [DOI: 10.1016/j.revmed.2022.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 01/26/2022] [Accepted: 01/29/2022] [Indexed: 02/07/2023]
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23
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Tsujita M, Doi Y, Obi Y, Hamano T, Tomosugi T, Futamura K, Okada M, Hiramitsu T, Goto N, Isaka Y, Takeda A, Narumi S, Watarai Y. Cholecalciferol Supplementation Attenuates Bone Loss in Incident Kidney Transplant Recipients: A Prespecified Secondary Endpoint Analysis of a Randomized Controlled Trial. J Bone Miner Res 2022; 37:303-311. [PMID: 34747516 PMCID: PMC9298992 DOI: 10.1002/jbmr.4469] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/12/2021] [Accepted: 11/04/2021] [Indexed: 12/23/2022]
Abstract
Vitamin D deficiency, persistent hyperparathyroidism, and bone loss are common after kidney transplantation (KTx). However, limited evidence exists regarding the effects of cholecalciferol supplementation on parathyroid hormone (PTH) and bone loss after KTx. In this prespecified secondary endpoint analysis of a randomized controlled trial, we evaluated changes in PTH, bone metabolic markers, and bone mineral density (BMD). At 1 month post-transplant, we randomized 193 patients to an 11-month intervention with cholecalciferol (4000 IU/d) or placebo. The median baseline 25-hydroxyvitamin D (25[OH]D) level was 10 ng/mL and 44% of participants had osteopenia or osteoporosis. At the end of the study, the median 25(OH)D level was increased to 40 ng/mL in the cholecalciferol group and substantially unchanged in the placebo group. Compared with placebo, cholecalciferol significantly reduced whole PTH concentrations (between-group difference of -15%; 95% confidence interval [CI] -25 to -3), with greater treatment effects in subgroups with lower 25(OH)D, lower serum calcium, or higher estimated glomerular filtration rate (pint < 0.05). The percent change in lumbar spine (LS) BMD from before KTx to 12 months post-transplant was -0.2% (95% CI -1.4 to 0.9) in the cholecalciferol group and -1.9% (95% CI -3.0 to -0.8) in the placebo group, with a significant between-group difference (1.7%; 95% CI 0.1 to 3.3). The beneficial effect of cholecalciferol on LS BMD was prominent in patients with low bone mass pint < 0.05). Changes in serum calcium, phosphate, bone metabolic markers, and BMD at the distal radius were not different between groups. In mediation analyses, change in whole PTH levels explained 39% of treatment effects on BMD change. In conclusion, 4000 IU/d cholecalciferol significantly reduced PTH levels and attenuated LS BMD loss after KTx. This regimen has the potential to eliminate vitamin D deficiency and provides beneficial effects on bone health even under glucocorticoid treatment. © 2021 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Makoto Tsujita
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan.,Department of Kidney Transplantation, Masuko Memorial Hospital, Nagoya, Japan
| | - Yohei Doi
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshitsugu Obi
- Division of Nephrology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Takayuki Hamano
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan.,Department of Nephrology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Toshihide Tomosugi
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Kenta Futamura
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Manabu Okada
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Takahisa Hiramitsu
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Norihiko Goto
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Asami Takeda
- Department of Nephrology, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Shunji Narumi
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Yoshihiko Watarai
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
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24
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Abstract
After kidney transplantation, mineral and bone disorders are associated with higher risk of fractures and consequent morbidity and mortality. Disorders of calcium and phosphorus, vitamin D deficiency, and hyperparathyroidism are also common. The epidemiology of bone disease has evolved over the past several decades due to changes in immunosuppressive regimens, mainly glucocorticoid minimization or avoidance. The assessment of bone disease in kidney transplant recipients relies on risk factor recognition and bone mineral density assessment. Several drugs have been trialed for the treatment of post-transplant mineral and bone disorders. This review will focus on the epidemiology, effect, and treatment of metabolic and skeletal derangements in the transplant recipient.
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Affiliation(s)
- Pascale Khairallah
- Section of Nephrology and Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, Texas
| | - Thomas L. Nickolas
- Division of Nephrology, Columbia University Irving Medical Center, New York, New York
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25
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Afifi MK, Kenawy AS, El Demellawy HH, Azouz AA, Al-Otaibi T, Gheith O, ElMonem MA, AbdElhalim MS, Hussein RRS. Optimization of osteoporosis and osteopenia management among renal transplant recipients. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021. [DOI: 10.1186/s43094-021-00378-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Osteoporosis and osteopenia occur frequently in renal transplant recipients due to long-term use of immune-suppressants including corticosteroids. Previous treatment options like bisphosphonates had acceptable but rather unsatisfactory results after transplant. The aim of the current study is to directly compare the efficacy of denosumab and oral ibandronate in late RTR with low bone mineral density.
Results
The study was conducted Iin Hamed Al-Essa Kidney transplant center, Kuwait, in 2020. The data of 52 denosumab and 48 ibandronate patients were collected at the baseline and after one year of treatment. Spine and hip T-score readings, side effects, and other laboratory results were analyzed to evaluate the use of both medications. The mean number of months after transplant was 25 (± 13.9) months. After one year of treatment, denosumab alleviated both spinal osteoporosis and osteopenia T-score values from −3.13 to −2.4 (p = 0.008) and from −1.9 to −1.5 (p = 0.015), respectively. Besides, it reduced hip osteoporosis and osteopenia insignificantly from −3.45 to −3.1 and from −1.5 to −1.3, respectively (p > 0.05). Ibandronate improved spinal osteopenia from −1.6 to −1.55 (p = 0.97) and failed to show any positive impact on other sites; the spinal osteoporosis changed from −2.8 to −3 and hip osteoporosis and osteopenia changed from −3.1 to −3.12 and from −1.4 to −1.45, respectively (p > 0.05). The use of ibandronate was more associated with gastrointestinal tract (GIT) side effects, while hypocalcemia episodes were significantly higher in the denosumab group.
Conclusion
Denosumab improved both spinal and hip T-score values in comparison with ibandronate in RTR. Close monitoring is required for denosumab patients to prevent the associated hypocalcemia.
Graphical Abstract
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26
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Cianciolo G, Tondolo F, Barbuto S, Iacovella F, Zavatta G, Altieri P, Grandinetti V, Comai G, Cozzolino M, La Manna G. Denosumab-Induced Hypocalcemia and Hyperparathyroidism in de novo Kidney Transplant Recipients. Am J Nephrol 2021; 52:611-619. [PMID: 34518468 DOI: 10.1159/000518363] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/03/2021] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Denosumab represents a realistic treatment option to increase bone mineral density in kidney transplant recipients (KTRs). It is still unknown how and at what extent posttransplantation bone disease and graft function influence the effects of denosumab on mineral metabolism indexes. In this study, we analyze risk factors of hypocalcemia and parathyroid hormone (PTH) increase after denosumab administration in eighteen de novo KTRs and its management before and after this treatment. METHODS We conducted a monocentric, observational, prospective study on de novo KTRs. All KTRs enrolled received a single 60 mg subcutaneous dose of denosumab every 6 months. Before kidney transplantation, no patients were treated with calcio-mimetic. After kidney transplantation and before antiresorptive therapy, no patients were treated with calcio-mimetic drugs and/or vitamin D receptor agonists, while all patients received nutritional vitamin D supplementation (from 1,000 IU to 1,500 IU daily). RESULTS Hypocalcemia was related to the degree of lumbar osteoporosis (p = 0.047); the increase in the PTH level was correlated to baseline bone turnover markers (bone alkaline phosphatase, serum osteocalcin, and β-C-terminal telopeptide), the 25 OH status, and eGFR. The introduction of calcitriol, after the PTH increase, in addition to cholecalciferol was necessary to ensure an adequate control of serum calcium and PTH during a follow-up of 15 months. Following the treatment with denosumab, it was observed an improvement of areal bone mineral density both at lumbar and femoral sites with a mean percentual increase of 1.74% and 0.25%, respectively. CONCLUSIONS Denosumab is an effective treatment for bone disease in KTRs. In our study, the increase in PTH is not a transient event but prolonged throughout the follow-up period and requires continuous supplementation therapy with calcitriol.
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Affiliation(s)
- Giuseppe Cianciolo
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Alma Mater Studiorum University of Bologna, Bologna, Italy,
| | - Francesco Tondolo
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Simona Barbuto
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Francesca Iacovella
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Guido Zavatta
- Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Department of Medical and Surgical Sciences (DIMEC), Università Alma Mater Studiorum di Bologna, Bologna, Italy
| | - Paola Altieri
- Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Department of Medical and Surgical Sciences (DIMEC), Università Alma Mater Studiorum di Bologna, Bologna, Italy
| | - Valeria Grandinetti
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Giorgia Comai
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Mario Cozzolino
- Department of Health Sciences, Renal Division, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Gaetano La Manna
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Alma Mater Studiorum University of Bologna, Bologna, Italy
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27
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Hampson G, Elder GJ, Cohen-Solal M, Abrahamsen B. A review and perspective on the assessment, management and prevention of fragility fractures in patients with osteoporosis and chronic kidney disease. Endocrine 2021; 73:509-529. [PMID: 33974225 PMCID: PMC8325650 DOI: 10.1007/s12020-021-02735-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 04/19/2021] [Indexed: 01/01/2023]
Abstract
This article aims to review the methods used for the assessment of fracture risk and the use of osteoporosis medications for fracture prevention in the population with CKD, and highlights the difficulties faced by clinicians in the management of these patients and the latest recommendations and guidelines. Chronic kidney disease (CKD) and osteoporosis often co-exist in older adults, and they present a major healthcare challenge. CKD mineral and bone disorder (CKD-MBD) occurs as renal function declines and this syndrome affects most patients in CKD stages 4 and 5. The biochemical abnormalities of CKD-MBD, renal bone disease and risk factors associated with age-related bone loss and osteoporosis lead to a cumulative effect on fracture risk and mortality. There is a need for routine evaluation of fracture risk and fracture prevention in this population. Measurement of bone mineral density (BMD) and the use of the FRAX tool have predictive value for incident fractures in the general population and in CKD. This enables physicians to identify CKD patients most at risk of sustaining a fragility fracture and allows a more targeted approach to fracture prevention. Data analysis from the pivotal trials of therapeutic agents used in osteoporosis show that these drugs can be considered in mild and moderate CKD (stages 1-3 CKD). Off-label drug use in patients with CKD-MBD and more severe renal impairment (CKD stages 4 and 5) could offer significant benefits to sub-groups of patients when carefully tailored to each individual's bone turnover and calcium and phosphate balance. However, this requires a selective approach and treatment decisions based on inference from pathophysiology while we await further trials. Guidelines advocate the correction and/or reduction of the biochemical abnormalities of CKD-MBD before initiation of treatment with osteoporosis drugs and close monitoring during treatment.
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Affiliation(s)
- Geeta Hampson
- Department of Chemical Pathology and Metabolic Medicine, St Thomas' Hospital, London, UK.
- Metabolic Bone Clinic, Department of Rheumatology, Guy's Hospital, London, UK.
| | - Grahame J Elder
- Department of Renal Medicine, Westmead Hospital, Sydney, New South Wales, Australia
- Osteoporosis and Bone Biology Program, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- Faculty of Medicine, University of Notre Dame Australia, Level 2, 88-90 Water Street, Auburn, New South Wales, 2144, Australia
| | - Martine Cohen-Solal
- Bioscar Inserm U1132 and Université de Paris, Hôpital Lariboisière, F-75010, Paris, France
| | - Bo Abrahamsen
- Department of Medicine, Holbæk Hospital, Holbæk, Denmark
- Department of Clinical Research, Open Data Explorative Network, University of Southern Denmark, Odense, Denmark
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28
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Abstract
Glucocorticoid-induced osteoporosis is the most common cause of secondary osteoporosis; nonetheless, it remains an undertreated condition. Transplantation-induced osteoporosis encompasses a broad range of unique pathogenetic features with distinct characteristics dependent on the transplanted organ. Understanding the pathogenesis of bone loss is key to recommending osteoporosis therapy in these patients. This review summarizes recent advances and addresses current issues in these fields.
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Affiliation(s)
- Guido Zavatta
- Mayo Clinic E18-A, 200 1st Street Southwest, Rochester, MN 55905, USA; Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, Policlinico di S. Orsola - Padiglione 11, Via Massarenti 9, Bologna 40138, Italy
| | - Bart L Clarke
- Mayo Clinic E18-A, 200 1st Street Southwest, Rochester, MN 55905, USA.
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29
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Alfieri C, Binda V, Malvica S, Cresseri D, Campise M, Gandolfo MT, Regalia A, Mattinzoli D, Armelloni S, Favi E, Molinari P, Messa P. Bone Effect and Safety of One-Year Denosumab Therapy in a Cohort of Renal Transplanted Patients: An Observational Monocentric Study. J Clin Med 2021; 10:jcm10091989. [PMID: 34066345 PMCID: PMC8124304 DOI: 10.3390/jcm10091989] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/23/2021] [Accepted: 04/28/2021] [Indexed: 01/17/2023] Open
Abstract
In 32-kidney transplanted patients (KTxps), the safety and the effects on BMD and mineral metabolism (MM) of one-year treatment with denosumab (DB) were studied. Femoral and vertebral BMD and T-score, FRAX score and vertebral fractures (sVF) before (T0) and after 12 months (T12) of treatment were measured. MM, renal parameters, hypocalcemic episodes (HpCa), urinary tract infections (UTI), major graft and KTxps outcomes were monitored. The cohort was composed mainly of females, n = 21. We had 29 KTxps on steroid therapy and 22 KTxps on vitamin D supplementation. At T0, 25 and 7 KTxps had femoral osteoporosis (F-OPS) and osteopenia (F-OPS), respectively. Twenty-three and six KTxps had vertebral osteoporosis (V-OPS) and osteopenia (V-OPS), respectively. Seventeen KTxps had sVF. At T12, T-score increased at femoral and vertebral sites (p = 0.05, p = 0.008). The prevalence of F-OPS and V-OPS reduced from 78% to 69% and from 72% to 50%, respectively. Twenty-five KTxps ameliorated FRAX score and two KTxps had novel sVF. At T12, a slight reduction of Ca was present, without HpCa. Four KTxps had UTI. No graft rejections, loss of graft or deaths were reported. Our preliminary results show a good efficacy and safety of DB in KTxps. Longer and randomized studies involving more KTxps might elucidate the possible primary role of DB in the treatment of bone disorders in KTxps.
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Affiliation(s)
- Carlo Alfieri
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy;
- Correspondence: or ; Tel.: +39-02-55034552; Fax: +39-02-55034550
| | - Valentina Binda
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
| | - Silvia Malvica
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
- Specialization School of Nephrology and Dialysis, University of Milan, 20122 Milan, Italy
| | - Donata Cresseri
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
| | - Mariarosaria Campise
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
| | - Maria Teresa Gandolfo
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
| | - Anna Regalia
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
| | - Deborah Mattinzoli
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
| | - Silvia Armelloni
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
| | - Evaldo Favi
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy;
- Renal Transplantation Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Paolo Molinari
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
- Specialization School of Nephrology and Dialysis, University of Milan, 20122 Milan, Italy
| | - Piergiorgio Messa
- Unit of Nephrology, Dialysis and Renal Transplantation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (V.B.); (S.M.); (D.C.); (M.C.); (M.T.G.); (A.R.); (D.M.); (S.A.); (P.M.); (P.M.)
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy;
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30
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Mok CC, Ho LY, Leung SMT, Cheung HN, Chen SPL, Ma KM. Denosumab versus alendronate in long-term glucocorticoid users: A 12-month randomized controlled trial. Bone 2021; 146:115902. [PMID: 33631355 DOI: 10.1016/j.bone.2021.115902] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 12/23/2022]
Abstract
OBJECTIVES To compare the efficacy of denosumab and alendronate on raising spine bone mineral density (BMD) in long-term glucocorticoid (GC) users. METHODS Adult patients receiving long-term prednisolone (≥2.5 mg/day for ≥1 year) were recruited and randomized to either subcutaneous denosumab (60 mg/6 months) or oral alendronate (70 mg/week). BMD (lumbar spine, femoral neck, hip) and bone markers (serum P1NP and CTX) were measured at month 0, 6 and 12. The difference in spine BMD (primary outcome) at month 12 was compared between the two groups. RESULTS 139 subjects were recruited (age 50.0 ± 12.7 years; 96% women): 69 assigned denosumab and 70 assigned alendronate. At entry, 73(53%) patients were osteoporotic and 82(59%) patients were naive to the bisphosphonates. Baseline clinical characteristics and BMD values were similar in the two groups. At month 12, a significant gain in mean BMD at the lumbar spine (+3.5 ± 2.5%; p<0.001), hip (+0.9 ± 2.8%; p=0.01) and femoral neck (+1.04 ± 4.1%; p=0.047); was observed in denosumab-treated patients, whereas the corresponding change was +2.5 ± 2.9% (p<0.001), +1.6 ± 2.7% (p<0.001) and + 1.5 ± 3.9% (p=0.002) in the alendronate group. The spine, but not the hip or femoral neck, BMD at month 12 was significantly higher in the denosumab than alendronate group after adjustment for baseline BMD values, age, sex, osteoporosis risk factors and the cumulative prednisolone doses received in one year. The drop in P1NP and CTX was significantly higher in the denosumab than alendronate group. Frequency of adverse events (AEs), including infections, was similar in the two treatment arms. Seven patients withdrew from the study but not related to AEs. CONCLUSIONS In patients receiving long-term GCs, denosumab is superior to alendronate in raising the spine BMD after 12 months. Both drugs are well-tolerated.
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Affiliation(s)
- Chi Chiu Mok
- Department of Medicine, Tuen Mun Hospital, Hong Kong.
| | - Ling Yin Ho
- Department of Medicine, Tuen Mun Hospital, Hong Kong
| | | | - Hoi Ning Cheung
- Department of Pathology, Queen Elizabeth Hospital, Tuen Mun Hospital, Hong Kong
| | - Sammy Pak Lam Chen
- Department of Pathology, Queen Elizabeth Hospital, Tuen Mun Hospital, Hong Kong
| | - Kwok Man Ma
- Department of Nuclear Medicine, Tuen Mun Hospital, Hong Kong
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31
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Torregrosa JV, Ferreira AC, Cucchiari D, Ferreira A. Bone Mineral Disease After Kidney Transplantation. Calcif Tissue Int 2021; 108:551-560. [PMID: 33765230 DOI: 10.1007/s00223-021-00837-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 03/09/2021] [Indexed: 12/18/2022]
Abstract
Chronic kidney disease-mineral bone disorder (CKD-MBD) after kidney transplantation is a mix of pre-existing disorders and new alterations. The final consequences are reflected fundamentally as abnormal mineral metabolism (hypercalcemia, hypophosphatemia) and bone alterations [high or low bone turnover disease (as fibrous osteitis or adynamic bone disease), an eventual compromise of bone mineralization, decrease bone mineral density and bone fractures]. The major cause of post-transplantation hypercalcemia is the persistence of severe secondary hyperparathyroidism, and treatment options include calcimimetics or parathyroidectomy. On turn, hypophosphatemia is caused by both the persistence of high blood levels of PTH and/or high blood levels of FGF23, with its correction being very difficult to achieve. The most frequent bone morphology alteration is low bone turnover disease, while high-turnover osteopathy decreases in frequency after transplantation. Although the pathogenic mechanisms of these abnormalities have not been fully clarified, the available evidence suggests that there are a number of factors that play a very important role, such as immunosuppressive treatment, persistently high levels of PTH, vitamin D deficiency and hypophosphatemia. Fracture risk is four-fold higher in transplanted patients compared to general population. The most relevant risk factors for fracture in the kidney transplant population are diabetes mellitus, female sex, advanced age (especially > 65 years), dialysis vintage, high PTH levels and low phosphate levels, osteoporosis, pre-transplant stress fracture and high doses or prolonged steroids therapy. Treatment alternatives for CKD-MBD after transplantation include minimization of corticosteroids, use of calcium and vitamin D supplements, antiresorptives (bisphosphonates or Denosumab) and osteoformers (synthetic parathyroid hormone). As both mineral metabolism and bone disorders lead to increased morbidity and mortality, the presence of these changes after transplantation has to be prevented (if possible), minimized, diagnosed, and treated as soon as possible.
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Affiliation(s)
- Josep-Vicent Torregrosa
- Nephrology & Renal Transplant Department - Hospital Clínic, Barcelona, Spain.
- Universidad de Barcelona, Barcelona, Spain.
| | - Ana Carina Ferreira
- Nephrology Department, Centro Hospitalare, Universitário de Lisboa Central, Lisbon, Portugal
- Nova Medical School, Nova University, Lisbon, Portugal
| | - David Cucchiari
- Nephrology & Renal Transplant Department - Hospital Clínic, Barcelona, Spain
| | - Aníbal Ferreira
- Nephrology Department, Centro Hospitalare, Universitário de Lisboa Central, Lisbon, Portugal
- Nova Medical School, Nova University, Lisbon, Portugal
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Evenepoel P, Cunningham J, Ferrari S, Haarhaus M, Javaid MK, Lafage-Proust MH, Prieto-Alhambra D, Torres PU, Cannata-Andia J. European Consensus Statement on the diagnosis and management of osteoporosis in chronic kidney disease stages G4-G5D. Nephrol Dial Transplant 2021; 36:42-59. [PMID: 33098421 DOI: 10.1093/ndt/gfaa192] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Indexed: 12/16/2022] Open
Abstract
Controlling the excessive fracture burden in patients with chronic kidney disease (CKD) Stages G4-G5D remains an impressive challenge. The reasons are 2-fold. First, the pathophysiology of bone fragility in patients with CKD G4-G5D is complex and multifaceted, comprising a mixture of age-related (primary male/postmenopausal), drug-induced and CKD-related bone abnormalities. Second, our current armamentarium of osteoporosis medications has not been developed for, or adequately studied in patients with CKD G4-G5D, partly related to difficulties in diagnosing osteoporosis in this specific setting and fear of complications. Doubts about the optimal diagnostic and therapeutic approach fuel inertia in daily clinical practice. The scope of the present consensus paper is to review and update the assessment and diagnosis of osteoporosis in patients with CKD G4-G5D and to discuss the therapeutic interventions available and the manner in which these can be used to develop management strategies for the prevention of fragility fracture. As such, it aims to stimulate a cohesive approach to the management of osteoporosis in patients with CKD G4-G5D to replace current variations in care and treatment nihilism.
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Affiliation(s)
- Pieter Evenepoel
- Department of Nephrology, KU Leuven University Hospitals Leuven, Leuven, Belgium
| | - John Cunningham
- Centre for Nephrology, UCL Medical School, Royal Free Campus, London, UK
| | - Serge Ferrari
- Service of Bone Diseases, Geneva University Hospital, Switzerland
| | - Mathias Haarhaus
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Diaverum Sweden, Stockholm, Sweden
| | | | | | | | - Pablo Ureña Torres
- Department of Dialysis, AURA Nord Saint Ouen, Saint Ouen, France.,Department of Renal Physiology, Necker Hospital, University of Paris Descartes, Paris, France
| | - Jorge Cannata-Andia
- Bone and Mineral Research Unit (ISPA) (REDinREN), Hospital Universitario Central Asturias, Oviedo University, Spain
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Al Jurdi A, Da Silva Martins J, Riella LV. Mineral Bone Disorders in Kidney Transplantation. Semin Nephrol 2021; 41:168-179. [PMID: 34140095 DOI: 10.1016/j.semnephrol.2021.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Bone disease after kidney transplantation is associated with an increased risk of fractures, morbidity, and mortality. Its pathophysiology is complex, involving multiple contributors including pretransplant bone disease, immunosuppressive medications, and changes in the parathyroid-bone-kidney axis. Risk scores, bone turnover markers, and noninvasive imaging modalities are only able to partially predict the fracture risk in kidney transplant recipients. The optimal management of bone disease after kidney transplantation has not yet been established, with only a limited number of randomized clinical trials evaluating the efficacy of treatment regimens in kidney transplant recipients. This review focuses on the pathophysiology, evaluation, prevention, and treatment of post-kidney transplant mineral and bone disease as guided by recent evidence.
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Affiliation(s)
- Ayman Al Jurdi
- Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA; Division of Nephrology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | | | - Leonardo V Riella
- Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA; Division of Nephrology, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
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Evenepoel P, Claes K, Meijers B, Laurent MR, Bammens B, Naesens M, Sprangers B, Cavalier E, Kuypers D. Natural history of mineral metabolism, bone turnover and bone mineral density in de novo renal transplant recipients treated with a steroid minimization immunosuppressive protocol. Nephrol Dial Transplant 2020; 35:697-705. [PMID: 30339234 DOI: 10.1093/ndt/gfy306] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 08/15/2018] [Indexed: 01/08/2023] Open
Abstract
The skeletal effects of renal transplantation are not completely understood, especially in patients managed with a steroid minimization immunosuppressive protocol and long term. We enrolled 69 adult transplant recipients (39 males; ages 51.1 ± 12.2 years), free of antiresorptive therapy and managed with a steroid minimization immunosuppressive protocol, into a 5-year prospective observational study to evaluate changes in areal bone mineral density (aBMD), mineral metabolism and bone remodelling. Dual energy X-ray absorptiometry, laboratory parameters of mineral metabolism (including parathyroid hormone, sclerostin and fibroblast growth factor 23) and non-renal cleared bone turnover markers (BTMs) (bone-specific alkaline phosphatase, trimeric N-terminal propeptide and tartrate-resistant acid phosphatase 5b) were assessed at baseline and 1 and 5 years post-transplantation. The mean cumulative methylprednisolone exposure at 1 and 5 years amounted to 2.5 ± 0.8 and 5.8 ± 3.3 g, respectively. Overall, bone remodelling activity decreased after transplantation. Post-transplant aBMD changes were minimal and were significant only in the ultradistal radius during the first post-operative year {median -2.2% [interquartile range (IQR) -5.9-1.2] decline, P = 0.01} and in the lumbar spine between Years 1 and 5 [median 1.6% (IQR -3.2-7.0) increase, P = 0.009]. BTMs, as opposed to mineral metabolism parameters and cumulative corticosteroid exposure, associated with aBMD changes, both in the early and late post-transplant period. Most notably, aBMD changes inversely associated with bone remodelling changes. In summary, in de novo renal transplant recipients treated with a steroid minimization immunosuppressive protocol, BMD changes are limited, highly variable and related to remodelling activity rather than corticosteroid exposure.
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Affiliation(s)
- Pieter Evenepoel
- Laboratory of Nephrology, KU Leuven Department of Microbiology and Immunology, University Hospitals Leuven, Leuven, Belgium.,Department of Nephrology, University Hospitals Leuven, Leuven, Belgium
| | - Kathleen Claes
- Laboratory of Nephrology, KU Leuven Department of Microbiology and Immunology, University Hospitals Leuven, Leuven, Belgium.,Department of Nephrology, University Hospitals Leuven, Leuven, Belgium
| | - Björn Meijers
- Laboratory of Nephrology, KU Leuven Department of Microbiology and Immunology, University Hospitals Leuven, Leuven, Belgium.,Department of Nephrology, University Hospitals Leuven, Leuven, Belgium
| | | | - Bert Bammens
- Laboratory of Nephrology, KU Leuven Department of Microbiology and Immunology, University Hospitals Leuven, Leuven, Belgium.,Department of Nephrology, University Hospitals Leuven, Leuven, Belgium
| | - Maarten Naesens
- Laboratory of Nephrology, KU Leuven Department of Microbiology and Immunology, University Hospitals Leuven, Leuven, Belgium.,Department of Nephrology, University Hospitals Leuven, Leuven, Belgium
| | - Ben Sprangers
- Laboratory of Nephrology, KU Leuven Department of Microbiology and Immunology, University Hospitals Leuven, Leuven, Belgium.,Department of Nephrology, University Hospitals Leuven, Leuven, Belgium
| | | | - Dirk Kuypers
- Laboratory of Nephrology, KU Leuven Department of Microbiology and Immunology, University Hospitals Leuven, Leuven, Belgium.,Department of Nephrology, University Hospitals Leuven, Leuven, Belgium
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35
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Heimgartner N, Graf N, Frey D, Saleh L, Wüthrich RP, Bonani M. Predictive Power of Bone Turnover Biomarkers to Estimate Bone Mineral Density after Kidney Transplantation with or without Denosumab: A post hoc Analysis of the POSTOP Study. Kidney Blood Press Res 2020; 45:758-767. [PMID: 32998144 DOI: 10.1159/000510565] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/09/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Low bone mineral density (BMD) represents a major risk factor for bone fractures in patients with chronic kidney disease (CKD) as well as after kidney transplantation. However, modalities to solidly predict patients at fracture risk are yet to be defined. Better understanding of bone turnover biomarkers (BTMs) may close this diagnostic gap. This study strives to correlate BTMs to BMD in kidney transplant recipients. METHODS Changes in BTMs - procollagen type I N-terminal propeptide (P1NP), bone-specific alkaline phosphatase (BSAP), β-isomer of the C-terminal telopeptide of type I collagen, and urine deoxypyridinoline/Cr - at the time of transplant and 3 months were correlated to changes in BMD measured by dual-energy X-ray absorptiometry at the time of transplant, 6, and 12 months, respectively. Half of the collective was treated with denosumab twice yearly in addition to the standard treatment with calcium and vitamin D. RESULTS Changes in bone formation markers BSAP and P1NP within 3 months showed a significant negative correlation to changes in BMD at the hip within 6 months in denosumab-naïve patients. This correlation was abrogated by denosumab treatment. CONCLUSIONS Changes in BSAP and P1NP showed promise in short-term prediction of BMD. We suggest further trials expanding on the knowledge of these BTMs with assessment of fracture risk, sequential measurements of BTMs within the first 6 months, and the additional use of computed tomography to assess BMD.
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Affiliation(s)
| | | | - Diana Frey
- Division of Rheumatology, University Hospital Zürich, Zürich, Switzerland
| | - Lanja Saleh
- Institute of Clinical Chemistry, University Hospital Zürich and University of Zürich, Zürich, Switzerland
| | - Rudolf P Wüthrich
- Division of Nephrology, University Hospital Zürich, Zürich, Switzerland
| | - Marco Bonani
- Division of Nephrology, University Hospital Zürich, Zürich, Switzerland,
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36
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Ming J, Cronin SJF, Penninger JM. Targeting the RANKL/RANK/OPG Axis for Cancer Therapy. Front Oncol 2020; 10:1283. [PMID: 32850393 PMCID: PMC7426519 DOI: 10.3389/fonc.2020.01283] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022] Open
Abstract
RANKL and RANK are expressed in different cell types and tissues throughout the body. They were originally described for their essential roles in bone remodeling and the immune system but have subsequently been shown to provide essential signals from regulating mammary gland homeostasis during pregnancy to modulating tumorigenesis. The success of RANKL/RANK research serves as a paragon for translational research from the laboratory to the bedside. The case in point has been the development of Denosumab, a RANKL-blocking monoclonal antibody which has already helped millions of patients suffering from post-menopausal osteoporosis and skeletal related events in cancer. Here we will provide an overview of the pathway from its origins to its clinical relevance in disease, with a special focus on emerging evidence demonstrating the therapeutic value of targeting the RANKL/RANK/OPG axis not only in breast cancer but also as an addition to the cancer immunotherapy arsenal.
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Affiliation(s)
- Jie Ming
- Department of Breast and Thyroid Surgery, Wuhan Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Shane J F Cronin
- Institute of Molecular Biotechnology of the Austrian Academy of Science, Vienna Biocenter, Vienna, Austria
| | - Josef M Penninger
- Institute of Molecular Biotechnology of the Austrian Academy of Science, Vienna Biocenter, Vienna, Austria.,Department of Medical Genetics, Life Science Institute, University of British Columbia, Vancouver, BC, Canada
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Kovvuru K, Kanduri SR, Vaitla P, Marathi R, Gosi S, Anton DFG, Rivera FHC, Garla V. Risk Factors and Management of Osteoporosis Post-Transplant. MEDICINA (KAUNAS, LITHUANIA) 2020; 56:E302. [PMID: 32575603 PMCID: PMC7353876 DOI: 10.3390/medicina56060302] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/11/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023]
Abstract
Bone and mineral disorders are common after organ transplantation. Osteoporosis post transplantation is associated with increased morbidity and mortality. Pathogenesis of bone disorders in this particular sub set of the population is complicated by multiple co-existing factors like preexisting bone disease, Vitamin D deficiency and parathyroid dysfunction. Risk factors include post-transplant immobilization, steroid usage, diabetes mellitus, low body mass index, older age, female sex, smoking, alcohol consumption and a sedentary lifestyle. Immunosuppressive medications post-transplant have a negative impact on outcomes, and further aggravate osteoporotic risk. Management is complex and challenging due to the sub-optimal sensitivity and specificity of non-invasive diagnostic tests, and the underutilization of bone biopsy. In this review, we summarize the prevalence, pathophysiology, diagnostic tests and management of osteoporosis in solid organ and hematopoietic stem cell transplant recipients.
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Affiliation(s)
- Karthik Kovvuru
- Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39156, USA
| | - Swetha Rani Kanduri
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39156, USA; (S.R.K.); (P.V.); (D.F.G.A.); (F.H.C.R.)
| | - Pradeep Vaitla
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39156, USA; (S.R.K.); (P.V.); (D.F.G.A.); (F.H.C.R.)
| | - Rachana Marathi
- Division of Hospital Medicine, Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39156, USA;
| | - Shiva Gosi
- Department of Hospital Medicine, Banner Thunderbird Medical Center, Glenadale, AZ 85306, USA;
| | - Desiree F. Garcia Anton
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39156, USA; (S.R.K.); (P.V.); (D.F.G.A.); (F.H.C.R.)
| | - Franco H. Cabeza Rivera
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Jackson, MS 39156, USA; (S.R.K.); (P.V.); (D.F.G.A.); (F.H.C.R.)
| | - Vishnu Garla
- Department of Internal Medicine and Mississippi Center for Clinical and Translational Research, University of Mississippi Medical Center, Jackson, MS 39156, USA;
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Diker-Cohen T, Rosenberg D, Avni T, Shepshelovich D, Tsvetov G, Gafter-Gvili A. Risk for Infections During Treatment With Denosumab for Osteoporosis: A Systematic Review and Meta-analysis. J Clin Endocrinol Metab 2020; 105:5695688. [PMID: 31899506 DOI: 10.1210/clinem/dgz322] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 12/30/2019] [Indexed: 12/25/2022]
Abstract
CONTEXT Denosumab inhibits the receptor activator of nuclear factor κ-Β ligand, an immune system modulator. Safety endpoints including risk for infections were assessed as secondary outcomes in randomized controlled trials (RCTs) of the drug. OBJECTIVE To assess the risk of serious adverse events of infections (SAEI) in denosumab-treated patients. DATA SOURCES PubMed and Cochrane Central Register of Controlled Trials were searched up to May 27, 2019. STUDY SELECTION All RCTs of denosumab (60 mg every 6 months) versus any comparator were included. We excluded trials in cancer patients for prevention of skeletal-related events. DATA EXTRACTION Two reviewers independently applied selection criteria and extracted the data. Risk ratios (RR) with 95% confidence intervals (CI) were pooled using a fixed effect model. Sensitivity analysis was based on risk of bias. DATA SYNTHESIS Thirty-three studies (22 253 patients) were included. There was a higher incidence of SAEI during denosumab treatment versus any comparator (RR, 1.21; 95% CI, 1.04-1.40; I2 = 0%), mainly of ear, nose, and throat (RR, 2.66; 95% CI, 1.20-5.91) and gastrointestinal origin (RR, 1.43; 95% CI, 1.02-2.01). RR was similar in a sensitivity analysis based on adequate allocation concealment. The RR of any infection (RR, 1.03; 95% CI, 0.99-1.06) and infection-related mortality (RR, 0.50; 95% CI, 0.20-1.23) was comparable between groups. CONCLUSIONS A higher incidence of SAEI is demonstrated during treatment with denosumab in an osteoporosis dose. Nevertheless, the overall risk for any infection or related mortality is similar to comparator groups. These findings merit consideration before therapy initiation.
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Affiliation(s)
- Talia Diker-Cohen
- Medicine A
- Institute of Endocrinology, Diabetes and Metabolism, Rabin Medical Center - Beilinson Hospital, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Dana Rosenberg
- Medicine A
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Tomer Avni
- Medicine A
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | - Gloria Tsvetov
- Institute of Endocrinology, Diabetes and Metabolism, Rabin Medical Center - Beilinson Hospital, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Anat Gafter-Gvili
- Medicine A
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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39
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Jeong C, Kim HJ, Lee S, Kang MI, Ha J. Effect of Denosumab on Bone Mineral Density of Hematopoietic Stem Cell Transplantation Recipients. Int J Endocrinol 2020; 2020:3410921. [PMID: 32454821 PMCID: PMC7218957 DOI: 10.1155/2020/3410921] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/09/2020] [Accepted: 04/23/2020] [Indexed: 12/28/2022] Open
Abstract
PURPOSE Denosumab is a monoclonal antibody that prevents the development of osteoclasts. The effect of denosumab in solid organ transplant recipients has been elucidated, but its effect in haematopoietic stem cell transplantation recipients has not been studied yet. The aim of this study was to determine the effectiveness and safety of denosumab in haematopoietic stem cell transplantation recipients. METHODS We retrospectively evaluated 33 female patients with osteoporosis (mean age 52.6 ± 9.8 years) following allogeneic haematopoietic stem cell transplantation. Patients were treated with denosumab every 6 months for 12 months. Changes in bone mineral density were evaluated for denosumab-treated patients in a 12-month interval after the first administration of denosumab. RESULTS Significant increases in bone mineral density were observed in all measured skeletal sites including 4.39 ± 6.63% in the lumbar spine (p=0.014), 3.11 ± 7.69% in the femoral neck (p=0.048), and 1.97 ± 6.01% in the total hip (p=0.138). The bone turnover marker serum cross-linked C-terminal telopeptide of type 1 collagen was decreased at 18 months (-51.6 ± 17.6%, p < 0.001). No serious symptomatic hypocalcaemia was observed. Serious adverse drug reactions requiring drug discontinuation were not observed. CONCLUSION Denosumab improved bone mineral density in haematopoietic stem cell transplantation recipients. The use of denosumab could be a good therapeutic option without causing severe adverse effects in recipients of haematopoietic transplantation.
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Affiliation(s)
- Chaiho Jeong
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hee-Je Kim
- Division of Hematology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seok Lee
- Division of Hematology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Moo Il Kang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeonghoon Ha
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Polyzos SA, Makras P, Tournis S, Anastasilakis AD. Off-label uses of denosumab in metabolic bone diseases. Bone 2019; 129:115048. [PMID: 31454537 DOI: 10.1016/j.bone.2019.115048] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 08/14/2019] [Accepted: 08/23/2019] [Indexed: 01/16/2023]
Abstract
Denosumab (Dmab), a monoclonal antibody against the receptor activator of nuclear factor-κB (RANK) ligand (RANKL) which substantially suppresses osteoclast activity, has been approved for the treatment of common metabolic bone diseases, including postmenopausal osteoporosis, male osteoporosis, and glucocorticoid-induced osteoporosis, in which the pathway of the RANK/RANKL/osteoprotegerin is dysregulated. However, the imbalance of RANKL/RANK/osteoprotegerin is also implicated in the pathogenesis of several other rare metabolic bone diseases, including Juvenile Paget disease, fibrous dysplasia, Hajdu Cheney syndrome and Langerhans cell histiocytosis, thus rendering Dmab a potential treatment option for these diseases. Dmab has been also administered off-label in selected patients (e.g., with Paget's disease, osteogenesis imperfecta, aneurysmal bone cysts) due to contraindications or unresponsiveness to standard treatment, such as bisphosphonates. Moreover, Dmab was administered to improve hypercalcemia induced by various diseases, including primary hyperparathyroidism, tuberculosis and immobilization. The aim of this review is to summarize existing evidence on off-label uses of Dmab in metabolic bone diseases and provide opinion for or against its use, which should be always considered on an individual basis.
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Affiliation(s)
- Stergios A Polyzos
- First Department of Pharmacology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Polyzois Makras
- Department of Endocrinology and Diabetes and Department of Medical Research, 251 Hellenic Air Force General Hospital, Athens, Greece
| | - Symeon Tournis
- Laboratory for Research of the Musculoskeletal System "Th. Garofalidis", National and Kapodistrian University of Athens, KAT Hospital, Athens, Greece
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Bone biomarkers in de novo renal transplant recipients. Clin Chim Acta 2019; 501:179-185. [PMID: 31734147 DOI: 10.1016/j.cca.2019.10.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 10/24/2019] [Indexed: 12/30/2022]
Abstract
Successful kidney transplantation (partly) corrects the physiologic and metabolic abnormalities driving chronic kidney disease - mineral and bone disorders. At the same time, renal transplant recipients are exposed to immunosuppressive agents that may affect bone metabolism. Bone biomarkers have been suggested as surrogates of or adjuncts to bone biopsy and imaging techniques to assess bone health and to classify risk of bone loss and fractures. Bone biomarkers may be classified as circulating factors that affect bone metabolism (commonly referred to as bone metabolism markers) or that reflect bone cell number and/or activity (commonly referred to as bone turnover markers). A growing body of evidence shows that successful renal transplantation has a major impact on both bone metabolism and bone turnover. Analytical issues, including the cross-reactivity with fragments, complicate the interpretation of bone biomarkers, especially in the setting of a rapid changing kidney function, as is the case after successful renal transplantation. Overall, bone turnover seems to decline following renal transplantation, but inter-individual variability is substantial. Preliminary evidence indicates that bone biomarkers may be useful in guiding mineral and bone therapy in renal transplant recipients.
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Palmer SC, Chung EYM, McGregor DO, Bachmann F, Strippoli GFM. Interventions for preventing bone disease in kidney transplant recipients. Cochrane Database Syst Rev 2019; 10:CD005015. [PMID: 31637698 PMCID: PMC6803293 DOI: 10.1002/14651858.cd005015.pub4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND People who have chronic kidney disease (CKD) have important changes to bone structure, strength, and metabolism. Children experience bone deformity, pain, and delayed or impaired growth. Adults experience limb and vertebral fractures, avascular necrosis, and pain. The fracture risk after kidney transplantation is four times that of the general population and is related to Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD) occurring with end-stage kidney failure, steroid-induced bone loss, and persistent hyperparathyroidism after transplantation. Fractures may reduce quality of life and lead to being unable to work or contribute to community roles and responsibilities. Earlier versions of this review have found low certainty evidence for effects of treatment. This is an update of a review first published in 2005 and updated in 2007. OBJECTIVES This review update evaluates the benefits and harms of interventions for preventing bone disease following kidney transplantation. SEARCH METHODS We searched the Cochrane Kidney and Transplant Register of Studies up to 16 May 2019 through contact with the Information Specialist using search terms relevant to this review. Studies in the Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA RCTs and quasi-RCTs evaluating treatments for bone disease among kidney transplant recipients of any age were eligible. DATA COLLECTION AND ANALYSIS Two authors independently assessed trial risks of bias and extracted data. Statistical analyses were performed using random effects meta-analysis. The risk estimates were expressed as a risk ratio (RR) for dichotomous variables and mean difference (MD) for continuous outcomes together with the corresponding 95% confidence interval (CI). The primary efficacy outcome was bone fracture. The primary safety outcome was acute graft rejection. Secondary outcomes included death (all cause and cardiovascular), myocardial infarction, stroke, musculoskeletal disorders (e.g. skeletal deformity, bone pain), graft loss, nausea, hyper- or hypocalcaemia, kidney function, serum parathyroid hormone (PTH), and bone mineral density (BMD). MAIN RESULTS In this 2019 update, 65 studies (involving 3598 participants) were eligible; 45 studies contributed data to our meta-analyses (2698 participants). Treatments included bisphosphonates, vitamin D compounds, teriparatide, denosumab, cinacalcet, parathyroidectomy, and calcitonin. Median duration of follow-up was 12 months. Forty-three studies evaluated bone density or bone-related biomarkers, with more recent studies evaluating proteinuria and hyperparathyroidism. Bisphosphonate therapy was usually commenced in the perioperative transplantation period (within 3 weeks) and regardless of BMD. Risks of bias were generally high or unclear leading to lower certainty in the results. A single study reported outcomes among 60 children and adolescents. Studies were not designed to measure treatment effects on fracture, death or cardiovascular outcomes, or graft loss.Compared to placebo, bisphosphonate therapy administered over 12 months in transplant recipients may prevent fracture (RR 0.62, 95% CI 0.38 to 1.01; low certainty evidence) although the 95% CI included the possibility that bisphosphonate therapy might make little or no difference. Fracture events were principally vertebral fractures identified during routine radiographic surveillance. It was uncertain whether any other drug class decreased fracture (low or very low certainty evidence). It was uncertain whether interventions for bone disease in kidney transplantation reduce all-cause or cardiovascular death, myocardial infarction or stroke, or graft loss in very low certainty evidence. Bisphosphonate therapy may decrease acute graft rejection (RR 0.70, 95% CI 0.55 to 0.89; low certainty evidence), while it is uncertain whether any other treatment impacts graft rejection (very low certainty evidence). Bisphosphonate therapy may reduce bone pain (RR 0.20, 95% CI 0.04 to 0.93; very low certainty evidence), while it was very uncertain whether bisphosphonates prevent spinal deformity or avascular bone necrosis (very low certainty evidence). Bisphosphonates may increase to risk of hypocalcaemia (RR 5.59, 95% CI 1.00 to 31.06; low certainty evidence). It was uncertain whether vitamin D compounds had any effect on skeletal, cardiovascular, death, or transplant function outcomes (very low certainty or absence of evidence). Evidence for the benefits and harms of all other treatments was of very low certainty. Evidence for children and young adolescents was sparse. AUTHORS' CONCLUSIONS Bisphosphonate therapy may reduce fracture and bone pain after kidney transplantation, however low certainty in the evidence indicates it is possible that treatment may make little or no difference. It is uncertain whether bisphosphonate therapy or other bone treatments prevent other skeletal complications after kidney transplantation, including spinal deformity or avascular bone necrosis. The effects of bone treatment for children and adolescents after kidney transplantation are very uncertain.
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Affiliation(s)
- Suetonia C Palmer
- University of Otago ChristchurchDepartment of Medicine2 Riccarton AvePO Box 4345ChristchurchNew Zealand8140
| | - Edmund YM Chung
- Royal North Shore HospitalDepartment of Medicine48 Provincial RoadSydneyNSWAustralia2070
| | - David O McGregor
- Christchurch HospitalDepartment of NephrologyPrivate Bag 4710ChristchurchNew Zealand8001
| | - Friederike Bachmann
- Charité University Medicine BerlinDepartment of Nephrology and Medical Intensive CareCharitéplatz 1BerlinGermany10117
| | - Giovanni FM Strippoli
- University of BariDepartment of Emergency and Organ TransplantationBariItaly
- DiaverumMedical Scientific OfficeLundSweden
- Diaverum AcademyBariItaly
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
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Kobel C, Frey D, Graf N, Wüthrich RP, Bonani M. Follow-Up of Bone Mineral Density Changes in de novo Kidney Transplant Recipients Treated with Two Doses of the Receptor Activator of Nuclear Factor κB Ligand Inhibitor Denosumab. Kidney Blood Press Res 2019; 44:1285-1293. [PMID: 31614356 DOI: 10.1159/000503066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/01/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Studies in women with post-menopausal osteoporosis have shown that discontinuation of treatment with denosumab leads to an increased risk of vertebral fractures because of rebound bone turnover and rapid loss of bone mineral density (BMD). METHODS In a post hoc analysis of the Prolia for Osteoporosis of Transplant Operated Patient study, we analyzed the effect of denosumab withdrawal on BMD changes. Twenty-five de novo kidney transplant recipients (KTR) who were treated for 1 year with 2 six-monthly doses of denosumab on top of standard treatment (daily calcium and vitamin D) were compared to a control group of 29 KTR who received standard treatment alone. BMD changes were analyzed by repeated dual-energy X-ray absorptiometry shortly after transplantation (baseline), after 6 and 12 months (active treatment phase) and after 2-6.5 years (follow-up phase). RESULTS The average BMD at the lumbar spine declined markedly after discontinuation of treatment with denosumab but increased again thereafter. Thus, the average monthly change in lumbar spine BMD from month 12 onward was only 0.1 ± 2.8‰ in the denosumab group but 1.5 ± 1.9‰ in the control group (p = 0.021). The average monthly change in lumbar spine BMD from baseline to follow-up was similar in the control and denosumab group (1.1 ± 1.2‰ vs. 1.5 ± 2.4‰, p = 0.788). Similar results were seen at the total hip. CONCLUSIONS In de novo KTR treated with 2 doses of denosumab, we detect a marked decrease in lumbar spine and hip BMD when denosumab is discontinued. Denosumab treatment should therefore not be discontinued without considering an alternative antiresorptive treatment.
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Affiliation(s)
- Claudia Kobel
- Division of Nephrology, University Hospital, Zürich, Switzerland
| | - Diana Frey
- Division of Rheumatology, University Hospital, Zürich, Switzerland
| | | | | | - Marco Bonani
- Division of Nephrology, University Hospital, Zürich, Switzerland,
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Anastasilakis AD, Tsourdi E, Makras P, Polyzos SA, Meier C, McCloskey EV, Pepe J, Zillikens MC. Bone disease following solid organ transplantation: A narrative review and recommendations for management from The European Calcified Tissue Society. Bone 2019; 127:401-418. [PMID: 31299385 DOI: 10.1016/j.bone.2019.07.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/07/2019] [Accepted: 07/08/2019] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Solid organ transplantation is an established therapy for end-stage organ failure. Both pre-transplantation bone disease and immunosuppressive regimens result in rapid bone loss and increased fracture rates. METHODS The European Calcified Tissue Society (ECTS) formed a working group to perform a systematic review of existing literature on the consequences of end-stage kidney, liver, heart, and lung disease on bone health. Moreover, we assessed the characteristics of post-transplant bone disease and the skeletal effects of immunosuppressive agents and aimed to provide recommendations for the prevention and treatment of transplantation-related osteoporosis. RESULTS Characteristics of bone disease may differ depending on the organ that fails, but patients awaiting solid organ transplantation frequently depict a wide spectrum of bone and mineral abnormalities. Common features are a decreased bone mass and impaired bone strength with consequent high fracture risk, all of which are aggravated in the early post-transplantation period. CONCLUSION Both the underlying disease leading to end-stage organ failure and the immunosuppression regimens implemented after successful organ transplantation have detrimental effects on bone mass, quality and strength. Given existing ample data confirming the high frequency of bone disease in patients awaiting solid organ transplantation, we recommend that all transplant candidates should be assessed for osteoporosis and fracture risk and, if indicated, treated before and after transplantation. Since bone loss in the early post-transplantation period occurs in virtually all solid organ recipients and is associated with glucocorticoid administration, the goal should be to use the lowest possible dose and to taper and withdraw glucocorticoids as early as possible.
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Affiliation(s)
| | - Elena Tsourdi
- Department of Medicine III, Technische Universität Dresden Medical Center, Dresden, Germany; Center for Healthy Aging, Technische Universität Dresden Medical Center, Dresden, Germany
| | - Polyzois Makras
- Department of Endocrinology and Diabetes, 251 Hellenic Force & VA General Hospital, Athens, Greece
| | - Stergios A Polyzos
- First Department of Pharmacology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christian Meier
- Division of Endocrinology, Diabetology and Metabolism, University Hospital and University of Basel, Switzerland
| | - Eugene V McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK; Centre for Integrated research in Musculoskeletal Ageing (CIMA), Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
| | - Jessica Pepe
- Department of Internal Medicine and Medical Disciplines, "Sapienza" University, Rome, Italy
| | - M Carola Zillikens
- Bone Center, Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands.
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45
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Wiegand A, Graf N, Bonani M, Frey D, Wüthrich RP, Mohebbi N. Relationship of Serum Bicarbonate Levels with 1-Year Graft Function in Kidney Transplant Recipients in Switzerland. Kidney Blood Press Res 2019; 44:1179-1188. [PMID: 31536994 DOI: 10.1159/000502527] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 08/06/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Metabolic acidosis (MA) is common in kidney transplant recipients (KTRs). Several studies have shown that MA is involved in the progression of chronic kidney disease. However, it is unclear if there is also a relationship between serum bicarbonate and graft function after kidney transplantation (KTx). We hypothesized that low serum bicarbonate is associated with a lower estimated glomerular filtration rate (eGFR) 1 year after KTx. METHODS We performed a post hoc analysis of a single-center, open-label randomized trial in 90 KTRs and investigated the relationship of serum bicarbonate and graft function in the first year after KTx. RESULTS Prevalence of MA was high after KTx (63%) and decreased to 28% after 1 year. Bicarbonate (20.6 ± 3.0 to 22.7 ± 2.7 mmol/L) increased in the first year after transplantation whereas eGFR (53.4 ± 15.8 to 56.9 ± 18.5 mL/min/1.73 m2) did not change significantly. Higher serum bicarbonate (p = 0.029) was associated with higher eGFR in the first year after KTx. CONCLUSION Prevalence of MA is high in KTRs. In the first year after KTx, serum bicarbonate was positively correlated with eGFR, suggesting a potential role of MA in kidney graft function.
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Affiliation(s)
- Anna Wiegand
- Division of Nephrology, University Hospital Zurich, Zurich, Switzerland
| | | | - Marco Bonani
- Division of Nephrology, University Hospital Zurich, Zurich, Switzerland
| | - Diana Frey
- Division of Rheumatology, University Hospital Zurich, Zurich, Switzerland
| | - Rudolf P Wüthrich
- Division of Nephrology, University Hospital Zurich, Zurich, Switzerland
| | - Nilufar Mohebbi
- Division of Nephrology, University Hospital Zurich, Zurich, Switzerland,
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46
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Bonani M, Frey D, Graf N, Wüthrich RP. Effect of denosumab on trabecular bone score in de novo kidney transplant recipients. Nephrol Dial Transplant 2019; 34:1773-1780. [DOI: 10.1093/ndt/gfy411] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 12/17/2018] [Indexed: 12/23/2022] Open
Abstract
Abstract
Background
Kidney transplant recipients (KTR) are at risk to lose bone mass. The trabecular bone score (TBS) represents a recently developed parameter of lumbar spine trabecular bone texture that correlates with the occurrence of fractures.
Methods
We analysed the 1-year changes in TBS in 44 de novo KTR that were randomized 1:1 to denosumab or no treatment. TBS was derived from dual energy X-ray absorptiometry and was correlated with 1-year areal bone mineral density (aBMD) changes at the lumbar spine and total hip. Correlations were also performed with parameters of peripheral bone microarchitecture and bone strength at the distal tibia and distal radius, as assessed by high-resolution peripheral quantitative computed tomography (HRpQCT) and micro-finite element analysis.
Results
The baseline TBS in KTR amounted to 1.312 ± 0.101, which is lower than the TBS of an age-matched normal control population (range 1.364–1.471). The TBS correlated positively with aBMD at the lumbar spine (Spearman’s ρ = 0.56; P < 0.001) and total hip (ρ = 0.33; P < 0.05). The baseline TBS also correlated with HRpQCT-derived total (ρ = 0.49; P < 0.05) and trabecular volumetric BMD (ρ = 0.57; P < 0.01) and trabecular separation (ρ = −0.46; P < 0.05) at the tibia. Denosumab treatment led to an increase in TBS, paralleling the BMD changes at the lumbar spine.
Conclusions
The TBS is a useful additional score of bone health, which may help to better define fracture risk. Treatment with denosumab led to improved trabecular bone texture in de novo KTR in addition to its beneficial effect on BMD.
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Affiliation(s)
- Marco Bonani
- Division of Nephrology, University Hospital, Zürich, Switzerland
| | - Diana Frey
- Division of Rheumatology, University Hospital, Zürich, Switzerland
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Abstract
Significant advances in immunosuppressive therapies have been made in renal transplantation, leading to increased allograft and patient survival. Despite improvement in overall patient survival, patients continue to require management of persistent post-transplant hyperparathyroidism. Medications that treat persistent hyperparathyroidism include vitamin D, vitamin D analogues, and calcimimetics. Medication side effects such as hypocalcemia or hypercalcemia, and adynamic bone disease, may lead to a decrease in the drugs. When medical management fails to control persistent post-transplant hyperparathyroidism, treatment is a parathyroidectomy. Surgical techniques are not uniform between centers and surgeons. Undergoing the surgery may include a subtotal technique or a technique including total parathyroid gland resection with partial heterotopic gland reimplantation. In addition, there are possible post-surgical complications. The ideal treatment for persistent post-transplant hyperparathyroidism is the treatment and prevention of the condition while patients are being managed for their late-stage chronic kidney disease and end-stage renal disease.
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Affiliation(s)
- Rowena Delos Santos
- Division of Nephrology, Washington University in St. Louis, 660 S. Euclid Ave, Campus Box 8126, St. Louis, MO, 63110, USA.
| | - Ana Rossi
- Division of Nephrology and Transplantation, Maine Medical Center, Maine Transplant Program, 19 West St., Portland, ME, 04102, USA
| | - Daniel Coyne
- Division of Nephrology, Washington University in St. Louis, 660 S. Euclid Ave, Campus Box 8126, St. Louis, MO, 63110, USA
| | - Thin Thin Maw
- Division of Nephrology and Hypertension, Keck School of Medicine of USC, 2020 Zonal Ave, IRD 806, Los Angeles, CA, 90033, USA
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Thongprayoon C, Acharya P, Aeddula NR, Torres-Ortiz A, Bathini T, Sharma K, Ungprasert P, Watthanasuntorn K, Suarez MLG, Salim SA, Kaewput W, Chenbhanich J, Mao MA, Cheungpasitporn W. Effects of denosumab on bone metabolism and bone mineral density in kidney transplant patients: a systematic review and meta-analysis. Arch Osteoporos 2019; 14:35. [PMID: 30852679 DOI: 10.1007/s11657-019-0587-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 03/04/2019] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The use of immunosuppressive agents, especially glucocorticoids, are associated with increased risks of bone loss in kidney transplant patients. Denosumab, a potent antiresorptive agent, has been shown to increase bone mineral density (BMD) in patients with CKD. However, its effects on bone metabolism and BMD in kidney transplant patients remain unclear. METHODS A literature search was conducted using MEDLINE, EMBASE, and Cochrane Database from inception through April 2018 to identify studies evaluating denosumab's effect on changes in bone metabolism and BMD from baseline to post-treatment course in kidney transplant patients. Study results were pooled and analyzed utilizing random-effects model. The protocol for this systematic review is registered with PROSPERO (International Prospective Register of Systematic Reviews; no. CRD42018095055). RESULTS Five studies (a clinical trial and four cohort studies) with a total of 162 kidney transplant patients were identified. The majority of patients had a baseline eGFR ≥ 30 mL/min/1.73 m2. After treatment (≥ 6 to 12 months), there were significant increases in BMD with standardized mean differences (SMDs) of 3.26 (95% CI 0.88-5.64) and 1.83 (95% CI 0.43 to 3.22) for lumbar spine and femoral neck, respectively. There were also significant increases in T scores with SMDs of 0.92 (95% CI 0.58 to 1.25) and 1.14 (95% CI 0.17 to 2.10) for lumbar spine and femoral neck, respectively. After treatment, there were no significant changes in serum calcium (Ca) or parathyroid hormone (PTH) from baseline to post-treatment course (≥ 6 months) with mean differences (MDs) of 0.52 (95% CI, - 0.13 to 1.16) mmol/L and - 13.24 (95% CI, - 43.85 to 17.37) ng/L, respectively. The clinical trial data demonstrated more asymptomatic hypocalcemia in the denosumab (12 episodes in 39 patients) than in the control (1 episode in 42 patients) group. From the cohort studies, the pooled incidence of hypocalcemia following denosumab treatment was 1.7% (95% CI 0.4 to 6.6%). All reported hypocalcemic episodes were mild and asymptomatic, but the majority of patients required Ca and vitamin D supplements. CONCLUSION Among kidney transplant patients with good allograft function, denosumab effectively increases BMD and T scores in the lumbar spine and femur neck. From baseline to post-treatment, there are no differences in serum Ca and PTH. However, mild hypocalcemia can occur following denosumab treatment, requiring monitoring and titration of Ca and vitamin D supplements.
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Affiliation(s)
- Charat Thongprayoon
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Prakrati Acharya
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA
| | - Narothama Reddy Aeddula
- Division of Nephrology, Department of Medicine, Indiana University School of Medicine and Deaconess Health System, Evansville, IN, USA
| | - Aldo Torres-Ortiz
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA
| | - Tarun Bathini
- Department of Internal Medicine, University of Arizona, Tucson, AZ, USA
| | - Konika Sharma
- Department of Internal Medicine, Bassett Medical Center, Cooperstown, NY, USA
| | - Patompong Ungprasert
- Clinical Epidemiology Unit, Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Maria Lourdes Gonzalez Suarez
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA
| | - Sohail Abdul Salim
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA
| | - Wisit Kaewput
- Department of Military and Community Medicine, Phramongkutklao College of Medicine, Bangkok, Thailand
| | - Jirat Chenbhanich
- Department of Internal Medicine, Metrowest Medical Center, Framingham, MA, USA
| | - Michael A Mao
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Wisit Cheungpasitporn
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, 2500 N. State St, Jackson, MS, 39216, USA.
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49
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Marques IDB, Araújo MJCLN, Graciolli FG, Dos Reis LM, Pereira RMR, Alvarenga JC, Custódio MR, Jorgetti V, Elias RM, Moysés RMA, David-Neto E. A Randomized Trial of Zoledronic Acid to Prevent Bone Loss in the First Year after Kidney Transplantation. J Am Soc Nephrol 2019; 30:355-365. [PMID: 30606784 DOI: 10.1681/asn.2018060656] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 11/25/2018] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Bone and mineral disorders commonly affect kidney transplant (KTx) recipients and have been associated with a high risk of fracture. Bisphosphonates may prevent or treat bone loss in such patients, but there is concern that these drugs might induce adynamic bone disease (ABD). METHODS In an open label, randomized trial to assess the safety and efficacy of zoledronate for preventing bone loss in the first year after kidney transplant, we randomized 34 patients before transplant to receive zoledronate or no treatment. We used dual-energy x-ray absorptiometry (DXA), high-resolution peripheral quantitative computed tomography (HR-pQCT), and bone biopsies to evaluate changes in bone in the 32 evaluable participants between the time of KTx and 12 months post-transplant. RESULTS Both groups of patients experienced decreased bone turnover after KTx, but zoledronate itself did not affect this outcome. Unlike previous studies, DXA showed no post-transplant bone loss in either group; we instead observed an increase of bone mineral density in both lumbar spine and total hip sites, with a significant positive effect of zoledronate. However, bone biopsies showed post-transplant impairment of trabecular connectivity (and no benefit from zoledronate); HR-pQCT detected trabecular bone loss at the peripheral skeleton, which zoledronate partially attenuated. CONCLUSIONS Current immunosuppressive regimens do not contribute to post-transplant central skeleton trabecular bone loss, and zoledronate does not induce ABD. Because fractures in transplant recipients are most commonly peripheral fractures, clinicians should consider bisphosphonate use in patients at high fracture risk who have evidence of significantly low bone mass at these sites at the time of KTx.
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Affiliation(s)
| | | | | | | | - Rosa Maria R Pereira
- Rheumatology Divisions, Hospital das Clínicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Jackeline C Alvarenga
- Rheumatology Divisions, Hospital das Clínicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
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50
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Abstract
PURPOSE OF REVIEW Despite metabolic improvements following kidney transplantation, transplant recipients still often suffer from complex mineral and bone disease after transplantation. RECENT FINDINGS The pathophysiology of post-transplant disease is unique, secondary to underlying pre-transplant mineral and bone disease, immunosuppression, and changing kidney function. Changes in modern immunosuppression regimens continue to alter the clinical picture. Modern management includes reducing cumulative steroid exposure and correcting the biochemical abnormalities in mineral metabolism. While bone mineral density screening appears to help predict fracture risk and anti-osteoporotic therapy appears to have a positive effect on bone mineral density, more data regarding specific treatment is necessary. Patients with mineral and bone disease after kidney transplantation require special care in order to properly manage and mitigate their mineral and bone disease. Recent changes in clinical management of transplant patients may also be changing the implications on patients' mineral and bone disease.
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Affiliation(s)
- Ariella M Altman
- Department of Surgery, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Stuart M Sprague
- Division of Nephrology and Hypertension, NorthShore University HealthSystem, University of Chicago Medical School, 2650 Ridge Avenue, Evanston, IL, 60201, USA.
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