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Aboghanem A, Prasad GVR. Disorders of potassium homeostasis after kidney transplantation. World J Transplant 2024; 14:95905. [PMID: 39295980 PMCID: PMC11317851 DOI: 10.5500/wjt.v14.i3.95905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 05/29/2024] [Accepted: 06/26/2024] [Indexed: 07/31/2024] Open
Abstract
Disturbances of potassium balance are often encountered when managing kidney transplant recipients (KTR). Both hyperkalemia and hypokalemia may present either as medical emergencies or chronic outpatient abnormalities. Despite the high incidence of hyperkalemia and its potential life-threatening implications, consensus on its management in KTR is lacking. Hypokalemia in KTR is also well-described, although it is given less attention by clinicians compared to hyperkalemia. This article discusses the etiology, pathophysiology and management of both types of potassium disorders in KTR. Once any emergent situation has been corrected, treatment approaches include correcting insulin deficiency if present, adjusting non-immunosuppressive and immunosuppressive medications, eliminating or supplementing potassium as needed, and dietary counselling. Although commonly of multifactorial etiology, ascertaining the specific cause in a particular patient will help guide successful management. Monitoring KTR through regular laboratory testing is essential to detect serious disturbances in potassium balance since patients are often asymptomatic.
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Affiliation(s)
| | - G V Ramesh Prasad
- School of Medicine, University of Toronto, Toronto M5C 2T2, Ontario, Canada
- Kidney Transplant Program, St. Michael's Hospital, Toronto M5C 2T2, Ontario, Canada
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2
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Larsson P, Englund B, Ekberg J, Felldin M, Broecker V, Mjörnstedt L, Baid-Agrawal S. Difficult-to-Treat Rejections in Kidney Transplant Recipients: Our Experience with Everolimus-Based Quadruple Maintenance Therapy. J Clin Med 2023; 12:6667. [PMID: 37892805 PMCID: PMC10607360 DOI: 10.3390/jcm12206667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/15/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
All chronic and treatment-resistant acute rejections are "difficult-to-treat" and lead to progressive loss of graft function in kidney transplant recipients (KTR), as no effective treatment exists for such rejections to date. We review our experience with a novel strategy to treat such rejections by adding everolimus as a "rescue" to conventional triple maintenance therapy with prednisolone, mycophenolate mofetil and calcineurin inhibitor. We retrospectively analysed data in 28 KTR who received everolimus-based quadruple therapy at our institution for biopsy-proven chronic active T cell-mediated or antibody-mediated rejection (n = 19) or treatment-resistant acute rejections (n = 9) between 2011-2017. The primary outcome was 5-year death-censored graft survival. Main secondary outcomes were response to treatment defined by stable or improved graft function, 5-year patient survival and discontinuation rate of treatment. The Kaplan-Meier estimate for 5-year death-censored graft survival was 79% in all patients, 90% for patients with chronic active T cell-mediated rejections, 78% for chronic active antibody-mediated rejection and 67% for acute rejections. Response to treatment was achieved in 43% and 5-year patient survival was 94%. Treatment was stopped in 12 (43%) patients due to adverse events. Everolimus-based maintenance quadruple therapy, despite high rate of everolimus discontinuation due to adverse events, may be a valid approach in a subset of kidney transplant recipients with such difficult-to-treat rejections, which otherwise would lead to a high rate of graft loss.
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Affiliation(s)
- Pierre Larsson
- Transplantation Center, Sahlgrenska University Hospital, University of Gothenburg, 41345 Gothenburg, Sweden; (P.L.); (J.E.)
- Department of Pathology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
| | - Bodil Englund
- Department of Nephrology, Danderyd Hospital, Karolinska Institute, 18288 Stockholm, Sweden
| | - Jana Ekberg
- Transplantation Center, Sahlgrenska University Hospital, University of Gothenburg, 41345 Gothenburg, Sweden; (P.L.); (J.E.)
| | - Marie Felldin
- Transplantation Center, Sahlgrenska University Hospital, University of Gothenburg, 41345 Gothenburg, Sweden; (P.L.); (J.E.)
| | - Verena Broecker
- Department of Pathology, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
| | - Lars Mjörnstedt
- Transplantation Center, Sahlgrenska University Hospital, University of Gothenburg, 41345 Gothenburg, Sweden; (P.L.); (J.E.)
| | - Seema Baid-Agrawal
- Transplantation Center, Sahlgrenska University Hospital, University of Gothenburg, 41345 Gothenburg, Sweden; (P.L.); (J.E.)
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Maenaka A, Kinoshita K, Hara H, Cooper DKC. The case for the therapeutic use of mechanistic/mammalian target of rapamycin (mTOR) inhibitors in xenotransplantation. Xenotransplantation 2023; 30:e12802. [PMID: 37029499 PMCID: PMC11286223 DOI: 10.1111/xen.12802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 03/23/2023] [Indexed: 04/09/2023]
Abstract
The mechanistic/mammalian target of rapamycin (mTOR) is one of the systems that are necessary to maintain cell homeostasis, such as survival, proliferation, and differentiation. mTOR inhibitors (mTOR-Is) are utilized as immunosuppressants and anti-cancer drugs. In organ allotransplantation, current regimens infrequently include an mTOR-I, which are positioned more commonly as alternative immunosuppressants. In clinical allotransplantation, long-term efficacy has been established, but there is a significant incidence of adverse events, for example, inhibition of wound healing, buccal ulceration, anemia, hyperglycemia, dyslipidemia, and thrombocytopenia, some of which are dose-dependent. mTOR-Is have properties that may be especially beneficial in xenotransplantation. These include suppression of T cell proliferation, increases in the number of T regulatory cells, inhibition of pig graft growth, and anti-inflammatory, anti-viral, and anti-cancer effects. We here review the potential benefits and risks of mTOR-Is in xenotransplantation and suggest that the benefits exceed the adverse effects.
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Affiliation(s)
- Akihiro Maenaka
- Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts, USA
| | - Kohei Kinoshita
- Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts, USA
| | - Hidetaka Hara
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan, China
| | - David K. C. Cooper
- Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts, USA
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Peddi VR, Marder B, Gaite L, Oberholzer J, Goldberg R, Pearson T, Yang H, Allamassey L, Polinsky M, Formica RN. Treatment of De Novo Renal Transplant Recipients With Calcineurin Inhibitor-free, Belatacept Plus Everolimus-based Immunosuppression. Transplant Direct 2023; 9:e1419. [PMID: 36700062 PMCID: PMC9820789 DOI: 10.1097/txd.0000000000001419] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 10/03/2022] [Indexed: 01/27/2023] Open
Abstract
Compared with calcineurin inhibitor-based immunosuppression, belatacept (BELA)-based treatment has been associated with better renal function but higher acute rejection rates. This phase 2 study (NCT02137239) compared the antirejection efficacy of BELA plus everolimus (EVL) with tacrolimus (TAC) plus mycophenolate mofetil (MMF), each following lymphocyte-depleting induction and rapid corticosteroid withdrawal. Methods Patients who were de novo renal transplant recipients seropositive for Epstein-Barr virus were randomized to receive BELA+EVL or TAC+MMF maintenance therapy after rabbit antithymocyte globulin induction and up to 7 d of corticosteroids. The primary endpoint was the rate of biopsy-proven acute rejection at month 6. Results Because of an unanticipated BELA supply constraint, enrollment was prematurely terminated at 68 patients, of whom 58 were randomized and transplanted (intention-to-treat [ITT] population: n = 26, BELA+EVL; n = 32, TAC+MMF). However, 25 patients received BELA+EVL' and 33 received TAC+MMF (modified ITT population). In the ITT population, the 6-mo biopsy-proven acute rejection rates were 7.7% versus 9.4% in the BELA+EVL versus TAC+MMF group. The corresponding 24-mo biopsy-proven acute rejection rates were 19.2% versus 12.5% in the ITT population and 16.0% versus 15.2% in the mITT population; all events were Banff severity grade ≤IIA and similar between groups. One patient in each group experienced graft loss unrelated to acute rejection. The 24-mo mean unadjusted estimated glomerular filtration rates were 71.8 versus 68.7 mL/min/1.73 m2 in the BELA+EVL versus TAC+MMF groups. Posttransplant lymphoproliferative disorder was reported for 1 patient in each group. No deaths or unexpected adverse events were observed. Conclusions A steroid-free maintenance regimen of BELA+EVL may be associated with biopsy-proven acute rejection rates comparable to TAC+MMF.
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Affiliation(s)
- V. Ram Peddi
- Department of Transplantation, California Pacific Medical Center, San Francisco, CA
| | - Bradley Marder
- Division of Transplant Research, Colorado Kidney Care, Denver, CO
| | - Luis Gaite
- Sección Hepatología, Clinica de Nefrología, Santa Fe, Argentina
| | - Jose Oberholzer
- Division of Transplant Surgery, Department of Surgery, University of Virginia Health System, Charlottesville, VA
| | - Ryan Goldberg
- Renal and Pancreas Transplant Division, Saint Barnabas Medical Center, Livingston, NJ
| | - Thomas Pearson
- Emory Transplant Center, Department of Surgery, Emory University School of Medicine, Atlanta, GA
| | - Harold Yang
- Department of Surgery, University of Pittsburgh Medical Center Pinnacle, Harrisburg, PA
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Ahn R, Ursini-Siegel J. Clinical Potential of Kinase Inhibitors in Combination with Immune Checkpoint Inhibitors for the Treatment of Solid Tumors. Int J Mol Sci 2021; 22:ijms22052608. [PMID: 33807608 PMCID: PMC7961781 DOI: 10.3390/ijms22052608] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 02/28/2021] [Accepted: 03/03/2021] [Indexed: 12/11/2022] Open
Abstract
Oncogenic kinases contribute to immunosuppression and modulate the tumor microenvironment in solid tumors. Increasing evidence supports the fundamental role of oncogenic kinase signaling networks in coordinating immunosuppressive tumor microenvironments. This has led to numerous studies examining the efficacy of kinase inhibitors in inducing anti-tumor immune responses by increasing tumor immunogenicity. Kinase inhibitors are the second most common FDA-approved group of drugs that are deployed for cancer treatment. With few exceptions, they inevitably lead to intrinsic and/or acquired resistance, particularly in patients with metastatic disease when used as a monotherapy. On the other hand, cancer immunotherapies, including immune checkpoint inhibitors, have revolutionized cancer treatment for malignancies such as melanoma and lung cancer. However, key hurdles remain to successfully incorporate such therapies in the treatment of other solid cancers. Here, we review the recent literature on oncogenic kinases that regulate tumor immunogenicity, immune suppression, and anti-tumor immunity. Furthermore, we discuss current efforts in clinical trials that combine kinase inhibitors and immune checkpoint inhibitors to treat breast cancer and other solid tumors.
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Affiliation(s)
- Ryuhjin Ahn
- Department of Biological Engineering, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;
| | - Josie Ursini-Siegel
- Department of Biochemistry, McGill University, Montréal, QC H3G 1Y6, Canada
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada
- Department of Experimental Medicine, McGill University, Montréal, QC H3A 0G4, Canada
- Department of Oncology, McGill University, 546 Pine Avenue West, Montréal, QC H2W 1S6, Canada
- Correspondence: ; Tel.: +514-340-8222 (ext. 26557); Fax: +514-340-7502
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Assis BPS, Lasmar MF, Fabreti-Oliveira RA, Araujo SA, Oliveira J, Wanderley DC, Nascimento E. An open-label randomized clinical trial to evaluate the efficacy of everolimus versus tacrolimus in triple maintenance immunosuppressive therapy for kidney transplant patients. ACTA ACUST UNITED AC 2021; 54:e9369. [PMID: 33681893 PMCID: PMC7931813 DOI: 10.1590/1414-431x20209369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 12/15/2020] [Indexed: 11/26/2022]
Abstract
Tacrolimus (TAC), a calcineurin inhibitor, and everolimus (EVL), an mTOR inhibitor, have been used as immunosuppressive (ISS) drugs in post-kidney transplantation therapy. The objective of this study was to compare the efficacy of EVL vs TAC in the ISS maintenance triple therapy. Ninety-seven kidney transplant patients, who received triple maintenance therapy with TAC, mycophenolate mofetil (MMF), and methyl prednisone (PRED), were evaluated. After four months of post-kidney transplant therapy, 30 patients enrolled in a randomized controlled clinical trial, in which 16 patients received TAC+MMF+PRED (cohort 1), and 14 patients switched to EVL+MMF+PRED (cohort 2). The patients were followed-up for 36 months. Two patients from cohort 1 lost their grafts after one year due to non-adherence. Two patients from cohort 2 had intolerance to mTOR inhibitors and were switched back to TAC from EVL. One case (6.25%) in cohort 1 and three cases (21.43%) in cohort 2 of acute T-cell-mediated rejection was observed. Antibody-mediated acute rejection (ABMAR) was observed in four patients (25.0%) in cohort 1, and antibody-mediated chronic rejection (ABMCR) was observed in two patients (12.50%). One patient from cohort 2 lost the graft after 15 months due to polyomavirus infection. The graft survival rate was 87.50% in cohort 1 and 92.86% in cohort 2. This clinical trial showed that the EVL+MMF+PRED triple maintenance therapy was efficacious compared with TAC during 32 months of follow-up. However, further studies are needed to confirm the efficacy of this regimen for long-term graft survival.
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Affiliation(s)
- B P S Assis
- Hospital Universitário da Faculdade de Ciências Médicas, Belo Horizonte, MG, Brasil.,Faculdade de Ciências Médicas, Belo Horizonte, MG, Brasil
| | - M F Lasmar
- Hospital Universitário da Faculdade de Ciências Médicas, Belo Horizonte, MG, Brasil.,Faculdade de Ciências Médicas, Belo Horizonte, MG, Brasil
| | - R A Fabreti-Oliveira
- Faculdade de Ciências Médicas, Belo Horizonte, MG, Brasil.,IMUNOLAB Ltda - Laboratório de Histocompatibilidade, Belo Horizonte, MG, Brasil
| | - S A Araujo
- Instituto de Nefropatologia, Belo Horizonte, MG, Brasil
| | - J Oliveira
- Faculdade de Ciências Médicas, Belo Horizonte, MG, Brasil
| | - D C Wanderley
- Instituto de Nefropatologia, Belo Horizonte, MG, Brasil
| | - E Nascimento
- Faculdade de Ciências Médicas, Belo Horizonte, MG, Brasil.,IMUNOLAB Ltda - Laboratório de Histocompatibilidade, Belo Horizonte, MG, Brasil
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Faravelli I, Velardo D, Podestà MA, Ponticelli C. Immunosuppression-related neurological disorders in kidney transplantation. J Nephrol 2021; 34:539-555. [PMID: 33481222 PMCID: PMC8036223 DOI: 10.1007/s40620-020-00956-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 12/27/2020] [Indexed: 01/06/2023]
Abstract
A large number of neurological disorders can affect renal transplant recipients, potentially leading to disabling or life-threatening complications. Prevention, early diagnosis and appropriate management of these conditions are critical to avoid irreversible lesions. A pivotal role in the pathogenesis of common post-transplant neurological disorders is played by immunosuppressive therapy. The most frequently administered regimen consists of triple immunosuppression, which comprises a calcineurin inhibitor (CNI), a purine synthesis inhibitor and glucocorticoids. Some of these immunosuppressive drugs may lead to neurological signs and symptoms through direct neurotoxic effects, and all of them may be responsible for the development of tumors or opportunistic infections. In this review, after a brief summary of neurotoxic pathogenetic mechanisms encompassing recent advances in the field, we focus on the clinical presentation of more common and severe immunosuppression-related neurological complications, classifying them by characteristics of urgency and anatomic site. Our goal is to provide a general framework that addresses such clinical issues with a multidisciplinary approach, as these conditions require.
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Affiliation(s)
- Irene Faravelli
- Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), Dino Ferrari Centre, Università degli Studi di Milano, Milan, Italy.
| | - Daniele Velardo
- Neurology Unit, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Manuel Alfredo Podestà
- Renal Division, ASST Santi Paolo e Carlo, Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
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Kim HD, Chang JY, Chung BH, Kim CD, Lee SH, Kim YH, Yang CW. Effect of Everolimus with Low-Dose Tacrolimus on Development of New-Onset Diabetes After Transplantation and Allograft Function in Kidney Transplantation: A Multicenter, Open-Label, Randomized Trial. Ann Transplant 2021; 26:e927984. [PMID: 33479188 PMCID: PMC7836319 DOI: 10.12659/aot.927984] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background This randomized controlled trial aimed to investigate the effect of everolimus (EVL) with low-dose tacrolimus (Tac) on the development of post-transplantation diabetes mellitus (PTDM) in kidney transplantation (KT). Material/Methods Seventy-seven kidney transplant patients from 4 transplant centers were included. Patients were randomized to the “EVL group” (n=38) and the “TAC group” (n=39). The target Tac trough level was 2 to 5 ng/mL in the EVL group and 5 to 10 ng/mL in the TAC group. Results The 1-year cumulative incidence of PTDM in all patients was 7.8%, and no difference was found between the 2 groups (P=0.0819). Insulin resistance measured with the homeostatic model assessment for insulin resistance showed a significant increase only in the TAC group (1.11 to 1.30, P=0.0492). Allograft rejection rate and estimated glomerular filtration rate (eGFR) follow-ups every 3 months were not significantly different between the 2 groups. However, the EVL group showed a significant increase in the mean eGFR at 9 months and 12 months after KT compared to the baseline value (P=0.0242 and 0.0491, respectively). The EVL group showed lower insulin resistance and higher allograft function in comparison to the TAC group. Conclusions EVL-based immunosuppressive therapy with lower Tac exposure could be a safer alternative for maintenance treatment.
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Affiliation(s)
- Hyung Duk Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Ji-Yeun Chang
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Byung Ha Chung
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Chan-Duck Kim
- Department of Internal Medicine, Kyungpook National University School of Medicine, Deagu, South Korea
| | - Sang-Ho Lee
- Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, South Korea
| | - Yeong Hoon Kim
- Department of Internal Medicine, College of Medicine, Inje University, Pusan, South Korea
| | - Chul Woo Yang
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Sułowicz J, Cieniawski D, Ignacak E, Bętkowska-Prokop A, Kuźniewski M, Sułowicz W. Comparison of Kidney Transplant Function, Lipid Metabolism Disorders, and Glucose and Hemoglobin Concentration in Transplant Patients Treated With Proliferation Signal Inhibitor (Everolimus) or Calcineurin Inhibitor (Tacrolimus). Transplant Proc 2020; 52:2347-2351. [PMID: 32307148 DOI: 10.1016/j.transproceed.2020.02.122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 02/05/2020] [Indexed: 12/17/2022]
Abstract
INTRODUCTION After kidney transplantation (KTx) in patients with diagnosed cancers, calcineurin inhibitor tacrolimus (TAC) is replaced by sirolimus or everolimus (EV). OBJECTIVE The objective of the study was to compare the lipid metabolism parameters, KTx function, and glucose and hemoglobin (Hgb) levels in patients treated with EV to those on TAC. MATERIAL AND METHODS The retrospective study included 114 patients: 54 (17 women and 37 men) aged 57.6 years (18-77 years) treated with EV and 60 (18 women and 42 men) aged 49.6 years (20-77 years) treated with TAC as a control group. Their total cholesterol (TC), triglycerides (TG), fasting glucose (FG), serum creatinine (SCr), Hgb, and estimated glomerular filtration rate (eGFR) were assessed. In the patients treated with EV, the above values were evaluated before conversion, as well as 12 and 24 months following the switch and were evaluated once in the group treated with TAC. RESULTS In the EV-treated group, the mean preconversion values after 12 and 24 months were as follows: TC 5.06, 6.59, and 5.98 mmol/L; TG 1.90, 2.48, and 2.20 mmol/L; FG 94.95, 97.85, and 104.05 mg/dL; SCr 1.46, 1.44, and 1.56 mg/dL; Hgb 12.46, 12.83, and 13.36 g/dL; and eGFR 50.3, 50.6, and 50.5 mL/min/1.73 m2. In the patients on TAC, the authors obtained the following values: TC 4.6 mmol/L; TG 1.87 mmol/L; glucose 104.13 mg/dL; SCr 1.51 mg/dL; Hgb 13.96 g/dL; and eGFR 56.6 mL/min/1.73 m2. CONCLUSIONS After conversion from TAC to EV, increased values of TC and TG were observed after 1 year, while the increased values of TC, TG, SCr, Hgb, and FG were observed after 2 years.
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Affiliation(s)
- Joanna Sułowicz
- Department of Dermatology, Jagiellonian University, Medical College, Kraków, Poland.
| | - Dominik Cieniawski
- Department of Nephrology, Jagiellonian University, Medical College, Kraków, Poland
| | - Ewa Ignacak
- Department of Nephrology, Jagiellonian University, Medical College, Kraków, Poland
| | | | - Marek Kuźniewski
- Department of Nephrology, Jagiellonian University, Medical College, Kraków, Poland
| | - Władysław Sułowicz
- Department of Nephrology, Jagiellonian University, Medical College, Kraków, Poland
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Sarmento DJDS, Aires Antunes RSCC, Cristelli M, Braz-Silva PH, Maciel R, Pestana JOMDA, Gallottini M. Oral manifestations of allograft recipients immediately before and after kidney transplantation. Acta Odontol Scand 2020; 78:217-222. [PMID: 31718409 DOI: 10.1080/00016357.2019.1685680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Objective: To identify the oral lesions of individuals with kidney disease immediately before and shortly after kidney transplantation, taking into account the immunosuppressive regimen, antiviral prophylaxis and type of transplantation.Methods: A prospective observational cohort study was carried from January 2017 to January 2018. Eighty individuals aged 18 years or older who were admitted for kidney transplantation were eligible to participate. Clinical data regarding medical history, immunosuppressive therapy, antiviral prophylaxis, laboratorial data and oral examination were performed by the same trained researcher, in three different moments: 24 hours before transplantation (1st time point), 15-20 days (2nd time point) and 45-60 days (3rd time point) after transplantation.Results: In the first, second and third time points, it was found that 3.7% (3/80), 23.7% (18/76) and 25.7% (19/74) of the participants showed oral soft tissue lesions. Ulcers and candidiasis were the most frequent oral lesions, and they were associated with the use of everolimus (p = .005) and azathioprine (p = .034), respectively. Less patients reported xerostomia after transplantation than before (p < .001).Conclusions: Oral lesions are common in the short term after renal transplantation and are particularly related to both toxicities of immunosuppressive drugs and immunosuppression.
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Affiliation(s)
| | | | - Marina Cristelli
- Division of Renal Transplant, Kidney and Hypertension Hospital, Federal University of São Paulo, São Paulo, Brazil
| | - Paulo Henrique Braz-Silva
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
- Division of Virology, Institute of Tropical Medicine of São Paulo, University of São Paulo, São Paulo, Brazil
| | - Rafael Maciel
- Division of Renal Transplant, Social Institute of Health Care, Campina Grande, Brazil
| | | | - Marina Gallottini
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
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Gomes RM, Barbosa WB, Godman B, Costa JDO, Ribeiro Junior NG, Simão Filho C, Cherchiglia ML, Acurcio FDA, Guerra Júnior AA. Effectiveness of Maintenance Immunosuppression Therapies in a Matched-Pair Analysis Cohort of 16 Years of Renal Transplant in the Brazilian National Health System. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E1974. [PMID: 32192172 PMCID: PMC7142921 DOI: 10.3390/ijerph17061974] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 03/09/2020] [Accepted: 03/11/2020] [Indexed: 12/11/2022]
Abstract
The maintenance of patients with renal transplant typically involves two or more drugs to prevent rejection and prolong graft survival. The calcineurin inhibitors (CNI) are the most commonly recommended medicines in combinations with others. While immunosuppressive treatment regimens are well established, there is insufficient long-term effectiveness data to help guide future management decisions. The study analyzes the effectiveness of treatment regimens containing CNI after renal transplantation during 16 years of follow-up with real-world data from the Brazilian National Health System (SUS). This was a retrospective study of 2318 SUS patients after renal transplantion. Patients were propensity score-matched (1:1) by sex, age, type and year of transplantation. Kaplan-Meier analysis was used to estimate the cumulative probabilities of survival. A Cox proportional hazard model was used to evaluate factors associated with progression to graft loss. Multivariable analysis, adjusted for diabetes mellitus and race/color, showed a greater risk of graft loss for patients using tacrolimus plus mycophenolate compared to patients treated with cyclosporine plus azathioprine. In conclusion, this Brazilian real-world study, with a long follow-up period using matched analysis for relevant clinical features and the representativeness of the sample, demonstrated improved long-term effectiveness for therapeutic regimens containing cyclosporine plus azathioprine. Consequently, we recommend that protocols and clinical guidelines for renal transplantation should consider the cyclosporine plus azathioprine regimen as a potential first line option, along with others.
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Affiliation(s)
- Rosângela Maria Gomes
- Department of Social Pharmacy, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
- SUS Collaborating Centre—Technology Assessment & Excellence in Health, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
- Programa de Pós-graduação em Medicamentos e Assistência Farmacêutica, Departamento de Farmácia Social, Faculdade de Farmácia, Universidade Federal de Minas Gerais—UFMG. Av. Presidente Antônio Carlos, 6627 Campus Pampulha, Belo Horizonte, MG 31270-901 Brazil
| | - Wallace Breno Barbosa
- Department of Social Pharmacy, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
- SUS Collaborating Centre—Technology Assessment & Excellence in Health, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Brian Godman
- Strathclyde Institute of Pharmacy and Biomedical Sciences, Strathclyde University, Glasgow G4 ORE, UK
- Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institute, Karolinska University Hospital Huddinge, SE-141 86 Stockholm, Sweden
- Health Economics Centre, Liverpool University Management School, Chatham Street, Liverpool L69 7ZH, UK
- School of Pharmacy, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
| | - Juliana de Oliveira Costa
- SUS Collaborating Centre—Technology Assessment & Excellence in Health, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
- Department of Preventive and Social Medicine, College of Medicine, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Nélio Gomes Ribeiro Junior
- SUS Collaborating Centre—Technology Assessment & Excellence in Health, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Charles Simão Filho
- Department of Surgery, College of Medicine, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Mariângela Leal Cherchiglia
- Department of Preventive and Social Medicine, College of Medicine, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Francisco de Assis Acurcio
- Department of Social Pharmacy, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
- SUS Collaborating Centre—Technology Assessment & Excellence in Health, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Augusto Afonso Guerra Júnior
- Department of Social Pharmacy, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
- SUS Collaborating Centre—Technology Assessment & Excellence in Health, College of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
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12
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Sirolimus and mTOR Inhibitors: A Review of Side Effects and Specific Management in Solid Organ Transplantation. Drug Saf 2020; 42:813-825. [PMID: 30868436 DOI: 10.1007/s40264-019-00810-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Inhibitors of mechanistic target of rapamycin (mTOR inhibitors) are used as antiproliferative immunosuppressive drugs and have many clinical applications in various drug combinations. Experience in transplantation studies has been gained regarding the side effect profile of these drugs and the potential benefits and limitations compared with other immunosuppressive agents. This article reviews the adverse effects of mTOR inhibitors in solid organ transplantation, with special attention given to mechanisms hypothesized to cause adverse events and their management strategies.
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13
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Tedesco-Silva H, Pascual J, Viklicky O, Basic-Jukic N, Cassuto E, Kim DY, Cruzado JM, Sommerer C, Adel Bakr M, Garcia VD, Uyen HD, Russ G, Soo Kim M, Kuypers D, Buchler M, Citterio F, Hernandez Gutierrez MP, Bernhardt P, Chadban S. Safety of Everolimus With Reduced Calcineurin Inhibitor Exposure in De Novo Kidney Transplants: An Analysis From the Randomized TRANSFORM Study. Transplantation 2019; 103:1953-1963. [PMID: 30801548 DOI: 10.1097/tp.0000000000002626] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND The safety profiles of standard therapy versus everolimus with reduced-exposure calcineurin inhibitor (CNI) therapy using contemporary protocols in de novo kidney transplant recipients have not been compared in detail. METHODS TRANSFORM was a randomized, international trial in which de novo kidney transplant patients were randomized to everolimus with reduced-exposure CNI (N = 1014) or mycophenolic acid (MPA) with standard-exposure CNI (N = 1012), both with induction and corticosteroids. RESULTS Within the safety population (everolimus 1014, MPA 1012), adverse events with a suspected relation to study drug occurred in 62.9% versus 59.2% of patients given everolimus or MPA, respectively (P = 0.085). Hyperlipidemia, interstitial lung disease, peripheral edema, proteinuria, stomatitis/mouth ulceration, thrombocytopenia, and wound healing complications were more frequent with everolimus, whereas diarrhea, nausea, vomiting, leukopenia, tremor, and insomnia were more frequent in the MPA group. The incidence of viral infections (17.2% versus 29.2%; P < 0.001), cytomegalovirus (CMV) infections (8.1% versus 20.1%; P < 0.001), CMV syndrome (13.6% versus 23.0%, P = 0.044), and BK virus (BKV) infections (4.3% versus 8.0%, P < 0.001) were less frequent with everolimus. CMV infection was less common with everolimus versus MPA after adjusting for prophylaxis therapy in the D+/R- subgroup (P < 0.001). Study drug was discontinued more frequently due to rejection or impaired healing with everolimus, and more often due to BKV infection or BKV nephropathy with MPA. CONCLUSIONS De novo everolimus with reduced-exposure CNI yielded a comparable incidence, though a distinctly different pattern, of adverse events versus current standard of care. Both regimens are safe and effective, yet their distinct profiles may enable tailoring for individual kidney transplant recipients.
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Affiliation(s)
- Helio Tedesco-Silva
- Division of Nephrology, Hospital do Rim, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Julio Pascual
- Department of Nephrology, Hospital del Mar, Barcelona, Spain
| | - Ondrej Viklicky
- Department of Nephrology, Transplant Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Nikolina Basic-Jukic
- Department of Nephrology, Arterial Hypertension, Dialysis and Transplantation, University Hospital Centre Zagreb, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Elisabeth Cassuto
- Department of Nephrology and Renal Transplantation, Hôpital Pasteur, Nice, France
| | - Dean Y Kim
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Hospital, Detroit, MI
| | - Josep M Cruzado
- Department of Nephrology, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Claudia Sommerer
- Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany
| | | | - Valter D Garcia
- Department of Renal Transplantation, Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil
| | - Huynh-Do Uyen
- Department of Nephrology and Hypertension, Inselspital Bern, Bern, Switzerland
| | - Graeme Russ
- Central and Northern Adelaide Renal and Transplantation Services, Royal Adelaide Hospital, Adelaide, Australia
| | - Myoung Soo Kim
- Department of Transplantation Surgery, Severance Hospital Yonsei University Health System, Seoul, Republic of Korea
| | - Dirk Kuypers
- Department of Nephrology and Renal Transplantation, Gasthuisberg University Hospital, University of Leuven, Leuven, Belgium
- Department of Microbiology and Immunology, University of Leuven, Leuven, Belgium
| | - Matthias Buchler
- Department of Nephrology and Renal Transplantation, CHRU de Tours, Hôpital Bretonneau, Tours, France
| | - Franco Citterio
- Policlinico Foundation, A Gemelli University, IRCCS, Catholic University of the Sacred Heart, Rome, Italy
| | | | - Peter Bernhardt
- Research and Development, Novartis Pharma AG, Basel, Switzerland
| | - Steve Chadban
- Department of Renal Medicine, Royal Prince Alfred Hospital, University of Sydney, Sydney, Australia
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14
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Everolimus and Long-term Clinical Outcomes in Kidney Transplant Recipients: A Registry-based 10-year Follow-up of 5 Randomized Trials. Transplantation 2019; 103:1705-1713. [DOI: 10.1097/tp.0000000000002499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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15
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Abstract
Aging, as a physiological process mediated by numerous regulatory pathways and transcription factors, is manifested by continuous progressive functional decline and increasing risk of chronic diseases. There is an increasing interest to identify pharmacological agents for treatment and prevention of age-related disease in humans. Animal models play an important role in identification and testing of anti-aging compounds; this step is crucial before the drug will enter human clinical trial or will be introduced to human medicine. One of the main goals of animal studies is better understanding of mechanistic targets, therapeutic implications and side-effects of the drug, which may be later translated into humans. In this chapter, we summarized the effects of different drugs reported to extend the lifespan in model organisms from round worms to rodents. Resveratrol, rapamycin, metformin and aspirin, showing effectiveness in model organism life- and healthspan extension mainly target the master regulators of aging such as mTOR, FOXO and PGC1α, affecting autophagy, inflammation and oxidative stress. In humans, these drugs were demonstrated to reduce inflammation, prevent CVD, and slow down the functional decline in certain organs. Additionally, potential anti-aging pharmacologic agents inhibit cancerogenesis, interfering with certain aspects of cell metabolism, proliferation, angioneogenesis and apoptosis.
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16
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Ying T, Wong G, Lim W, Kanellis J, Pilmore H, Campbell S, Masterson R, Walker R, O'Connell P, Russ G, Chadban S. De novo or early conversion to everolimus and long-term cancer outcomes in kidney transplant recipients: A trial-based linkage study. Am J Transplant 2018; 18:2977-2986. [PMID: 29802791 DOI: 10.1111/ajt.14948] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/08/2018] [Accepted: 05/20/2018] [Indexed: 01/25/2023]
Abstract
Choice of immunosuppression may modify the risk of cancer after kidney transplantation, however, long-term data are lacking. Using the Australian and New Zealand Dialysis and Transplant Registry, we compared the 9-year risk of incident cancer, non-melanoma skin cancer (NMSC), and death attributed to cancer among participants from Australia and New Zealand in four randomized-controlled trials which compared de novo or early switch to an everolimus-containing regimen with calcineurin-inhibitor-based triple therapy. An adjusted Cox-model with random effects was used to determine such risks. Two hundred seventy-nine patients (192 everolimus, 87 control) were followed for a median of 9 years (IQR 6.7, 11.2). Compared with control, everolimus use was not associated with a reduction in the risk of incident cancer, NMSC, or cancer-related death (unadjusted HR [95% CI] 0.86 [0.49-1.48], 0.58 [0.30-1.12], and 1.18 [0.32-4.38], respectively). Subgroup analyses showed a 56% reduction for NMSC in patients randomized to everolimus + reduced-dose calcineurin-inhibitor versus control (unadjusted HR 0.44 [0.21-0.92]), which remained significant after adjusting for age, gender and smoking (adjusted HR 0.45 [0.21-0.96]). Although de novo or early switch to everolimus did not alter the 9-year risk of incident cancer or cancer-related death, everolimus with reduced-dose calcineurin-inhibitor strategy may reduce the long-term risk of NMSC.
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Affiliation(s)
- Tracey Ying
- Renal Medicine, Royal Prince Alfred Hospital, Camperdown, NSW, Australia.,Kidney Node at Charles Perkins Centre, Sydney Medical School, University of Sydney, Camperdown, NSW, Australia
| | - Germaine Wong
- Centre for Transplant and Renal Research, Westmead Hospital, Westmead, NSW, Australia.,Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, NSW, Australia
| | - Wai Lim
- Department of Renal Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia.,University of Western Australia, Perth, WA, Australia
| | - John Kanellis
- Department of Nephrology, Monash Health and Centre for Inflammatory Diseases, Melbourne, Australia.,Department of Medicine, Monash University, Melbourne, Australia
| | - Helen Pilmore
- Department of Renal Medicine, Auckland Hospital, Auckland, VIC, New Zealand
| | - Scott Campbell
- Department of Renal Medicine, University of Queensland at Princess Alexandria Hospital, Woolloongabba, QLD, Australia
| | - Rosemary Masterson
- Department of Renal Medicine, Royal Melbourne Hospital, Parkville, VIC, Australia
| | - Rowan Walker
- Department of Renal Medicine, The Alfred Hospital Prahran, VIC, Australia
| | - Philip O'Connell
- Department of Renal Medicine, Westmead Hospital, Westmead, NSW, Australia
| | - Graeme Russ
- Central and Northern Adelaide Renal and Transplantation Services, Adelaide, SA, Australia
| | - Steven Chadban
- Renal Medicine, Royal Prince Alfred Hospital, Camperdown, NSW, Australia.,Kidney Node at Charles Perkins Centre, Sydney Medical School, University of Sydney, Camperdown, NSW, Australia
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17
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18
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Khalil MAM, Khalil MAU, Khan TFT, Tan J. Drug-Induced Hematological Cytopenia in Kidney Transplantation and the Challenges It Poses for Kidney Transplant Physicians. J Transplant 2018; 2018:9429265. [PMID: 30155279 PMCID: PMC6093016 DOI: 10.1155/2018/9429265] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 06/04/2018] [Accepted: 06/25/2018] [Indexed: 12/14/2022] Open
Abstract
Drug-induced hematological cytopenia is common in kidney transplantation. Various cytopenia including leucopenia (neutropenia), thrombocytopenia, and anemia can occur in kidney transplant recipients. Persistent severe leucopenia or neutropenia can lead to opportunistic infections of various etiologies. On the contrary, reducing or stopping immunosuppressive medications in these events can provoke a rejection. Transplant clinicians are often faced with the delicate dilemma of balancing cytopenia and rejection from adjustments of immunosuppressive regimen. Differentials of drug-induced cytopenia are wide. Identification of culprit medication and subsequent modification is also challenging. In this review, we will discuss individual drug implicated in causing cytopenia and correlate it with corresponding literature evidence.
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Affiliation(s)
| | | | - Taqi F. Taufeeq Khan
- King Salman Armed Forces Hospital, Tabuk King Abdul Aziz Rd., Tabuk 47512, Saudi Arabia
| | - Jackson Tan
- RIPAS Hospital, Bandar Seri Begawan BA1710, Brunei Darussalam
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19
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Toriu N, Mizuno H, Sawa N, Sumida K, Suwabe T, Hayami N, Sekine A, Yamanouchi M, Hoshino J, Takaichi K, Yanagita M, Fujimaru T, Mori T, Sohara E, Uchida S, Ubara Y. Everolimus Reduces the Size of Tuberous Sclerosis Complex-Related Huge Renal Angiomyolipomas Exceeding 20 cm in the Longest Diameter. Case Rep Oncol 2018; 11:258-267. [PMID: 29867433 PMCID: PMC5981599 DOI: 10.1159/000488704] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 03/22/2018] [Indexed: 12/18/2022] Open
Abstract
We evaluated the efficacy of everolimus in 3 patients who had huge renal angiomyolipomas associated with tuberous sclerosis complex. Two patients with large lipid-rich angiomyolipomas had a history of renal transarterial embolization for renal bleeding, but the effect had only been temporary and the embolized kidneys had continued to enlarge. In case 1, case 2, and case 3, total renal volume was respectively 3,891, 4,035, and 1,179 cm3 before administration of everolimus, decreasing to 3,016 (77%), 3,043 (75%), and 1,051 (89%) cm3 after 1 year of everolimus therapy and to 2,832 (73%), 3,209 (80%), and 1,102 (93%) cm3 after 3 years. New renal bleeding did not occur, but elevation of serum creatinine and urinary protein were noted in 2 patients. While previous reports have largely assessed the effect of everolimus for angiomyolipomas of < 10 cm in the longest diameter, our findings suggest that this drug might also be effective for huge lesions of > 20 cm in diameter. However, total renal volume still exceeds 2,000 cm3 in 2 of our patients, suggesting limited size reduction of lipid-rich angiomyolipomas. In addition, occurrence of everolimus-related nephropathy needs to be monitored carefully.
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Affiliation(s)
- Naoya Toriu
- Nephrology Center, Toranomon Hospital, Tokyo, Japan
| | | | - Naoki Sawa
- Nephrology Center, Toranomon Hospital, Tokyo, Japan
| | | | | | | | | | | | - Junichi Hoshino
- Nephrology Center, Toranomon Hospital, Tokyo, Japan.,Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - Kenmei Takaichi
- Nephrology Center, Toranomon Hospital, Tokyo, Japan.,Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - Motoko Yanagita
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takuya Fujimaru
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takayasu Mori
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Eisei Sohara
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shinichi Uchida
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshifumi Ubara
- Nephrology Center, Toranomon Hospital, Tokyo, Japan.,Okinaka Memorial Institute for Medical Research, Tokyo, Japan
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20
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Hickman LA, Sawinski D, Guzzo T, Locke JE. Urologic malignancies in kidney transplantation. Am J Transplant 2018; 18:13-22. [PMID: 28985026 DOI: 10.1111/ajt.14533] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 09/22/2017] [Accepted: 09/26/2017] [Indexed: 01/25/2023]
Abstract
With advances in immunosuppression, graft and patient outcomes after kidney transplantation have improved considerably. As a result, long-term complications of transplantation, such as urologic malignancies, have become increasingly important. Kidney transplant recipients, for example, have a 7-fold risk of renal cell carcinoma (RCC) and 3-fold risk of urothelial carcinoma (UC) compared with the general population. While extrapolation of data from the general population suggest that routine cancer screening in transplant recipients would allow for earlier diagnosis and management of these potentially lethal malignancies, currently there is no consensus for posttransplantation RCC or UC screening as supporting data are limited. Further understanding of risk factors, presentation, optimal management of, and screening for urologic malignancies in kidney transplant patients is warranted, and as such, this review will focus on the incidence, surveillance, and treatment of urologic malignancies in kidney transplant recipients.
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Affiliation(s)
- Laura A Hickman
- Department of Surgery, Division of Transplantation, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Deirdre Sawinski
- Department of Medicine, Renal Electrolyte and Hypertension Division, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Thomas Guzzo
- Department of Urology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Jayme E Locke
- Department of Surgery, Division of Transplantation, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
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21
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Obermeier J, Trefz P, Happ J, Schubert JK, Staude H, Fischer DC, Miekisch W. Exhaled volatile substances mirror clinical conditions in pediatric chronic kidney disease. PLoS One 2017; 12:e0178745. [PMID: 28570715 PMCID: PMC5453591 DOI: 10.1371/journal.pone.0178745] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 05/02/2017] [Indexed: 12/12/2022] Open
Abstract
Monitoring metabolic adaptation to chronic kidney disease (CKD) early in the time course of the disease is challenging. As a non-invasive technique, analysis of exhaled breath profiles is especially attractive in children. Up to now, no reports on breath profiles in this patient cohort are available. 116 pediatric subjects suffering from mild-to-moderate CKD (n = 48) or having a functional renal transplant KTx (n = 8) and healthy controls (n = 60) matched for age and sex were investigated. Non-invasive quantitative analysis of exhaled breath profiles by means of a highly sensitive online mass spectrometric technique (PTR-ToF) was used. CKD stage, the underlying renal disease (HUS; glomerular diseases; abnormalities of kidney and urinary tract or polycystic kidney disease) and the presence of a functional renal transplant were considered as classifiers. Exhaled volatile organic compound (VOC) patterns differed between CKD/ KTx patients and healthy children. Amounts of ammonia, ethanol, isoprene, pentanal and heptanal were higher in patients compared to healthy controls (556, 146, 70.5, 9.3, and 5.4 ppbV vs. 284, 82.4, 49.6, 5.30, and 2.78 ppbV). Methylamine concentrations were lower in the patient group (6.5 vs 10.1 ppbV). These concentration differences were most pronounced in HUS and kidney transplanted patients. When patients were grouped with respect to degree of renal failure these differences could still be detected. Ammonia accumulated already in CKD stage 1, whereas alterations of isoprene (linked to cholesterol metabolism), pentanal and heptanal (linked to oxidative stress) concentrations were detectable in the breath of patients with CKD stage 2 to 4. Only weak associations between serum creatinine and exhaled VOCs were noted. Non-invasive breath testing may help to understand basic mechanisms and metabolic adaptation accompanying progression of CKD. Our results support the current notion that metabolic adaptation occurs early during the time course of CKD.
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Affiliation(s)
- Juliane Obermeier
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies (ROMBAT), University Medicine Rostock, Rostock, Germany
| | - Phillip Trefz
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies (ROMBAT), University Medicine Rostock, Rostock, Germany
| | - Josephine Happ
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies (ROMBAT), University Medicine Rostock, Rostock, Germany
| | - Jochen K. Schubert
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies (ROMBAT), University Medicine Rostock, Rostock, Germany
| | - Hagen Staude
- Department of Pediatrics, University Medicine Rostock, Rostock, Germany
| | | | - Wolfram Miekisch
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies (ROMBAT), University Medicine Rostock, Rostock, Germany
- * E-mail:
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