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Zevallos A, Cornejo J, Sarmiento J, Shojaeian F, Mokhtari-Esbuie F, Adrales G, Li C, Sebastian R. Outcomes of Sleeve Gastrectomy in Patients With Organ Transplant-Related Immunosuppression. J Surg Res 2024; 300:253-262. [PMID: 38833753 DOI: 10.1016/j.jss.2024.05.007] [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: 11/07/2023] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 06/06/2024]
Abstract
INTRODUCTION Obesity is frequent among organ transplant recipients, increasing the risk of acute graft rejection and overall morbimortality. Laparoscopic sleeve gastrectomy (LSG) effectively improves graft survival and associated comorbidities. We first compared 30-d outcomes between chronic immunosuppressed (CI) and nonchronic immunosuppressed (non-CI) patients. Then, between organ transplant and non-organ transplant CI patients who underwent LSG. METHODS Patients who underwent LSG within the metabolic and bariatric surgery accreditation and quality improvement program 2017-2019 were included. Using 1:1 and 1:4 propensity score matching analysis, the cohorts were matched for 30 characteristics. We then compared 30-d outcomes between CI and non-CI (analysis 1) and between organ transplant and non-organ transplant CI patients who underwent LSG (analysis 2). RESULTS A total of 486,576 patients were included. The matched cohorts in analysis 1 (n = 8978) and analysis 2 (n = 1152, n = 371) had similar preoperative characteristics. Propensity score matching in analysis 1 showed that patients in the CI group had significantly higher rates of renal complications (0.4% versus 0.2%, P = 0.006), unplanned intensive care unit admission (1.1% versus 0.7%, P = 0.003), blood transfusions (1.1% versus 0.7%, P = 0.003), readmissions (4.6% versus 3.5%, P < 0.001), reoperations (1.4% versus 1.0%, P = 0.033), interventions (1.3% versus 1.0%, P = 0.026), and postoperative bleeding (0.6% versus 0.4%, P = 0.013). In analysis 2, patients with organ transplant CI had a higher rate of pulmonary complications (1.1% versus 0.3%, P = 0.043), renal complications (2.4% versus 0.2%, P < 0.001), blood transfusions (6.5% versus 1.3%, P < 0.001), and readmissions (10.0% versus 4.6%, P < 0.001). CONCLUSIONS Patients with transplant-related CI who underwent LSG have higher 30-d postoperative complication rates compared to nontransplant-related CI patients; however, there were no differences in terms of mortality, intensive care unit admissions, staple line leaks, or bleeding. LSG is safe and feasible in this high-risk population.
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Affiliation(s)
- Alba Zevallos
- Department of Surgery, Northwest Hospital, Randallstown, Maryland; Universidad Cientifica del Sur, Lima, Peru
| | - Jorge Cornejo
- Department of Surgery, Northwest Hospital, Randallstown, Maryland
| | | | - Fatemeh Shojaeian
- Department of Surgery, The Johns Hopkins University, Baltimore, Maryland
| | | | - Gina Adrales
- Department of Surgery, The Johns Hopkins University, Baltimore, Maryland
| | - Christina Li
- Department of Surgery, Northwest Hospital, Randallstown, Maryland
| | - Raul Sebastian
- Department of Surgery, Northwest Hospital, Randallstown, Maryland; Department of Surgery, The Johns Hopkins University, Baltimore, Maryland.
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Du Q, Li T, Yi X, Song S, Kang J, Jiang Y. Prevalence of new-onset diabetes mellitus after kidney transplantation: a systematic review and meta-analysis. Acta Diabetol 2024; 61:809-829. [PMID: 38507083 DOI: 10.1007/s00592-024-02253-w] [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: 10/25/2023] [Accepted: 02/01/2024] [Indexed: 03/22/2024]
Abstract
AIMS Post-transplant diabetes is a prevalent and consequential complication following kidney transplantation, which significantly augments the risk of cardiovascular disease, graft loss, infection, and mortality, thereby profoundly impacting both graft and patient survival. However, the early stages of post-transplant diabetes often go unnoticed or receive inadequate management. Consequently, this study systematically assesses the incidence of new-onset diabetes after kidney transplantation with the aim to enhance medical staff awareness regarding post-transplantation diabetes and provide clinical management guidance. METHODS We conducted a comprehensive search across multiple databases including PubMed, Web of Science, Embase, The Cochrane Library, CNKI, Wanfang, VIP, and SinoMed until September 21, 2023. Data extraction was performed using standardized tables and meta-analysis was conducted using Stata 16.0 software. A random effects model was employed to estimate the combined prevalence along with its corresponding 95% confidence interval. The source of heterogeneity was explored using subgroup analysis and sensitivity analysis, while publication bias was assessed through funnel plot and Egger's test. This study has been registered with PROSPERO under the registration number CRD42023465768. RESULTS This meta-analysis comprised 39 studies with a total sample size of 16,584 patients. The prevalence of new-onset diabetes after transplantation was found to be 20% [95% CI (18.0, 22.0)]. Subgroup analyses were conducted based on age, gender, body mass index, family history of diabetes, type of kidney donor, immunosuppressive regimen, acute rejection episodes, hepatitis C infection status and cytomegalovirus infection. CONCLUSIONS The incidence of post-kidney transplantation diabetes is substantial, necessitating early implementation of preventive and control measures to mitigate its occurrence, enhance prognosis, and optimize patients' quality of life. CLINICAL TRIAL REGISTRATION PROSPERO: CRD42023465768.
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Affiliation(s)
- Qiufeng Du
- College of Nursing, Chengdu University of Traditional Chinese Medicine, No.37 Shi-er-qiao Road, Chengdu City, 610075, Sichuan Province, China
| | - Tao Li
- College of Nursing, Chengdu University of Traditional Chinese Medicine, No.37 Shi-er-qiao Road, Chengdu City, 610075, Sichuan Province, China
| | - Xiaodong Yi
- College of Nursing, Chengdu University of Traditional Chinese Medicine, No.37 Shi-er-qiao Road, Chengdu City, 610075, Sichuan Province, China
| | - Shuang Song
- College of Nursing, Chengdu University of Traditional Chinese Medicine, No.37 Shi-er-qiao Road, Chengdu City, 610075, Sichuan Province, China
| | - Jing Kang
- College of Nursing, Chengdu University of Traditional Chinese Medicine, No.37 Shi-er-qiao Road, Chengdu City, 610075, Sichuan Province, China
| | - Yunlan Jiang
- Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu City, 610072, Sichuan Province, China.
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3
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Chirban A, del Valle DD, Coe T, Cote MP, Chen M, Cataldo J, Elias N, Shah A, Dageforde LA. Elements of Weight Management Among Pre-Kidney Transplant Candidates: The Patient Perspective. Transpl Int 2024; 37:12735. [PMID: 38855426 PMCID: PMC11160837 DOI: 10.3389/ti.2024.12735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 05/07/2024] [Indexed: 06/11/2024]
Abstract
Obesity and related comorbidities heighten risks for complications in kidney transplant settings. While pre-transplant patients often have access to nutrition counseling and health support, literature is limited on patients' perceptions of weight and motivation to lose weight prior to transplantation. We conducted a survey among ≥18-year-old patients on the kidney transplant waitlist at a single center. Questions addressed weight perception, motivation for weight loss, available resources, and engagement in physical activity. Medical records provided demographic and clinical data. Statistical tests analyzed quantitative data, while free-text responses were thematically grouped and described. Of 1055 patients, 291 responded and were matched with demographic data. Perceived weight changes correlated with actual changes in body mass index (BMI) (<24.9) were more receptive to weight center resources (<30 kg/m2) are most interested in weight loss resources and demonstrate motivation. Furthermore, pre-transplant nutrition counseling correlates with healthier behaviors. Integrating patients' perspectives enhances pre-transplant protocols by encouraging active involvement in health decisions.
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Affiliation(s)
- Ariana Chirban
- San Diego School of Medicine, University of California, San Diego, CA, United States
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
| | - Diana D. del Valle
- Harvard Medical School, Boston, MA, United States
- Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Taylor Coe
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Maria P. Cote
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Maggie Chen
- School of Medicine, University of Maryland, Baltimore, MD, United States
| | - Jennie Cataldo
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
| | - Nahel Elias
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Anushi Shah
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
| | - Leigh Anne Dageforde
- Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
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Shaked O, Loza BL, Olthoff KM, Reddy KR, Keating BJ, Testa G, Asrani SK, Shaked A. Donor and recipient genetics: implications for the development of post-transplant diabetes mellitus. Am J Transplant 2024:S1600-6135(24)00342-3. [PMID: 38782187 DOI: 10.1016/j.ajt.2024.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 04/16/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Post-transplant diabetes mellitus (PTDM) is a prevalent complication of liver transplantation and is associated with cardiometabolic complications. We studied the consequences of genetic effects of liver donors and recipients on PTDM outcomes, focusing on the diverse genetic pathways related to insulin that play a role in the development of PTDM. 1115 liver transplant recipients without a pre-transplant diagnosis of type 2 diabetes mellitus (T2D) and their paired donors recruited from two transplant centers had polygenic risk scores (PRS) for T2D, insulin secretion, and insulin sensitivity calculated. Among recipients in the highest T2D-PRS quintile, donor T2D-PRS did not contribute significantly to PTDM. However, in recipients with the lowest T2D genetic risk, donor livers with the highest T2D-PRS contributed to the development of PTDM (OR (95% CI)=3.79 (1.10-13.1), p=0.035). Recipient risk was linked to factors associated with insulin secretion (OR (95% CI) = 0.85 (0.74-0.98), p=0.02), while donor livers contributed to PTDM via gene pathways involved in insulin sensitivity (OR (95% CI)=0.86 (0.75-0.99), p=0.03). Recipient and donor PRS independently and collectively serve as predictors of PTDM onset. The genetically influenced biological pathways in recipients primarily pertain to insulin secretion, whereas the genetic makeup of donors exerts an influence on insulin sensitivity.
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Affiliation(s)
- Oren Shaked
- Penn Transplant Institute, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Bao-Li Loza
- Penn Transplant Institute, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kim M Olthoff
- Penn Transplant Institute, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - K Rajender Reddy
- Penn Transplant Institute, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Brendan J Keating
- Penn Transplant Institute, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | | | - Abraham Shaked
- Penn Transplant Institute, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Kajdas AA, Szostak-Węgierek D, Dąbrowska-Bender M, Normann AK, Søndergaard Linde D. Immunosuppressive Therapy and Nutritional Status of Patients after Kidney Transplantation: A Protocol for a Systematic Review. J Clin Med 2023; 12:6955. [PMID: 37959419 PMCID: PMC10650412 DOI: 10.3390/jcm12216955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/14/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
(1) Background: Kidney transplantation is widely recognized as the most effective method of treating end-stage renal disease. Immunosuppressive therapy plays a pivotal role in the treatment of kidney transplant patients, encompassing all patients (except identical twins), and is administered from organ transplantation until the end of its function. The aim of this systematic review is to identify the evidence of the association between immunosuppressive therapy and nutritional status of patients following kidney transplantation. (2) Methods: This protocol has been designed in line with Preferred Items for Systematic Reviews (PRISMA-P). Our search encompasses several databases, including MEDLINE (via PubMed), EMBASE (Elsevier), Scopus and Web of Science. We intend to include observational studies (cross-sectional, case-control, and cohort designs), randomized controlled trials (RCTs), as well as completed and ongoing non-randomized study designs. We will confine our search to studies published in English within the past decade (from inception to 17 February 2023). Qualitative studies, case studies, and conference reports will be excluded. The selection process will be done in Covidence by two independent reviewers. Data extraction will be conducted using a standardized MS Excel template version 16.0. Quality assessment of included studies will be performed using the Cochrane Risk of Bias tool for randomized trials (RoB2), or the Risk of Bias in Non-randomized Studies of Interventions (ROBINS-I) tool. Risk-of-bias plots will be generated using the web application Robvis. Relevant data that have been extracted from eligible studies will be presented in a narrative synthesis. We expect the studies to be too heterogeneous to perform subgroup analyses. (3) Conclusion: This systematic review will offer insights into the evidence regarding association between immunosuppressive therapy and nutritional status of adult patients (18 years of age or older) within the initial year following kidney transplantation. To our knowledge, there is no systematic review addressing that question.
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Affiliation(s)
- Aleksandra Anna Kajdas
- Department of Clinical Dietetics, Medical University of Warsaw, Erazma Ciolka 27 Street, 01-445 Warsaw, Poland; (D.S.-W.); (M.D.-B.)
- Polish Society of Parenteral, Enteral Nutrition and Metabolism (POLSPEN), Banacha 1a Street, 02-097 Warsaw, Poland
| | - Dorota Szostak-Węgierek
- Department of Clinical Dietetics, Medical University of Warsaw, Erazma Ciolka 27 Street, 01-445 Warsaw, Poland; (D.S.-W.); (M.D.-B.)
- Polish Society of Parenteral, Enteral Nutrition and Metabolism (POLSPEN), Banacha 1a Street, 02-097 Warsaw, Poland
| | - Marta Dąbrowska-Bender
- Department of Clinical Dietetics, Medical University of Warsaw, Erazma Ciolka 27 Street, 01-445 Warsaw, Poland; (D.S.-W.); (M.D.-B.)
- Polish Society of Parenteral, Enteral Nutrition and Metabolism (POLSPEN), Banacha 1a Street, 02-097 Warsaw, Poland
| | - Anne Katrine Normann
- Department of Gynaecology and Obstetrics, Hospital Southwest Jutland, 6700 Esbjerg, Denmark;
| | - Ditte Søndergaard Linde
- Department of Clinical Research, University of Southern Denmark, 5230 Odense, Denmark;
- Department of Gynaecology & Obstetrics, Odense University Hospital, 5000 Odense, Denmark
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Mao X, Xu DQ, Yue SJ, Fu RJ, Zhang S, Tang YP. Potential Medicinal Value of Rhein for Diabetic Kidney Disease. Chin J Integr Med 2023; 29:951-960. [PMID: 36607584 DOI: 10.1007/s11655-022-3591-y] [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] [Accepted: 10/12/2022] [Indexed: 01/07/2023]
Abstract
Diabetic kidney disease (DKD) is the primary cause of mortality among diabetic patients. With the increasing prevalence of diabetes, it has become a major concern around the world. The therapeutic effect of clinical use of drugs is far from expected, and therapy choices to slow the progression of DKD remain restricted. Therefore, research on new drugs and treatments for DKD has been a hot topic in the medical field. It has been found that rhein has the potential to target the pathogenesis of DKD and has a wide range of pharmacological effects on DKD, such as anti-nephritis, decreasing blood glucose, controlling blood lipids and renal protection. In recent years, the medical value of rhein in the treatment of diabetes, DKD and renal disease has gradually attracted worldwide attention, especially its potential in the treatment of DKD. Currently, DKD can only be treated with medications from a single symptom and are accompanied by adverse effects, while rhein improves DKD with a multi-pathway and multi-target approach. Therefore, this paper reviews the therapeutic effects of rhein on DKD, and proposes solutions to the limitations of rhein itself, in order to provide valuable references for the clinical application of rhein in DKD and the development of new drugs.
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Affiliation(s)
- Xi Mao
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, 712046, China
| | - Ding-Qiao Xu
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, 712046, China
| | - Shi-Jun Yue
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, 712046, China
| | - Rui-Jia Fu
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, 712046, China
| | - Sai Zhang
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, 712046, China
| | - Yu-Ping Tang
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, 712046, China.
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Diabetic Kidney Disease in Post-Transplant Diabetes Mellitus: Causes, Treatment and Outcomes. Biomedicines 2023; 11:biomedicines11020470. [PMID: 36831005 PMCID: PMC9953284 DOI: 10.3390/biomedicines11020470] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/12/2023] [Accepted: 01/27/2023] [Indexed: 02/08/2023] Open
Abstract
Kidney transplant recipients are a unique subgroup of chronic kidney disease patients due to their single functioning kidney, immunosuppressive agent usage, and long-term complications related to transplantation. Post-transplant diabetes mellitus (PTDM) has a significant adverse effect on renal outcomes in particular. As transplantations enable people to live longer, cardiovascular morbidity and mortality become more prevalent, and PTDM is a key risk factor for these complications. Although PTDM results from similar risk factors to those of type 2 diabetes, the conditions differ in their pathophysiology and clinical features. Transplantation itself is a risk factor for diabetes due to chronic exposure to immunosuppressive agents. Considering current evidence, this article describes the risk factors, pathogenesis, diagnostic criteria, prevention strategies, and management of PTDM. The therapeutic options are discussed regarding their safety and potential drug-drug interactions with immunosuppressive agents.
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8
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Kanbay M, Copur S, Ucku D, Zoccali C. Donor obesity and weight gain after transplantation: two still overlooked threats to long-term graft survival. Clin Kidney J 2022; 16:254-261. [PMID: 36755848 PMCID: PMC9900567 DOI: 10.1093/ckj/sfac216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Indexed: 11/12/2022] Open
Abstract
The effect of donor obesity on kidney transplantation success has long been an overlooked clinical research area. Even though there is no strict guideline in most countries prohibiting donation from obese individuals, most candidates with a body mass index >35-40 kg/m2 are rejected due to concerns regarding long-term renal functional deterioration in the donor. The effects of excessive fat mass on renal function and allograft survival have been analysed by several longitudinal and follow-up studies. These studies have documented the deleterious effect on long-term graft outcomes of excessive body mass in living kidney donors and de novo obesity or pre-existing obesity worsening after transplantation on kidney outcomes. However, there is a paucity of clinical trials aimed at countering overweight and obesity in living and deceased kidney donors and in transplant patients. In this review we will briefly discuss the mechanism whereby fat excess induces adverse kidney outcomes and describe the effects on graft function and survival in living obese donors.
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Affiliation(s)
| | - Sidar Copur
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Duygu Ucku
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Carmine Zoccali
- Renal Research Institute, New York, NY, USA,Department of Medicine, Division of Nephrology, Associazione Ipertensione, Nefrologia e Trapianto Renale, Nefrologia, Ospedali Riuniti, Reggio Calabria, Italy
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Singhal SS, Garg R, Horne D, Singhal S, Awasthi S, Salgia R. RLIP: A necessary transporter protein for translating oxidative stress into pro-obesity and pro-carcinogenic signaling. Biochim Biophys Acta Rev Cancer 2022; 1877:188803. [PMID: 36150564 DOI: 10.1016/j.bbcan.2022.188803] [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: 07/05/2022] [Revised: 08/24/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022]
Abstract
Previously, we showed that knockout mice homozygous for deficiency of the mercapturic acid pathway (MAP) transporter protein, RLIP (RLIP-/-), are resistant to chemical carcinogenesis, inflammation, and metabolic syndrome (MetS). We also found that RLIP-/- mice are highly resistant to obesity caused by a high-fat diet (HFD). Interestingly, these studies showed that kinase, cytokine, and adipokine signaling that are characteristics of obesity were blocked despite the presence of increased oxidative stress in RLIP-/- mice. The deficiencies in obesity-inducing kinase, cytokine, and adipokine signaling were attributable to a lack of clathrin-dependent endocytosis (CDE), a process that is severely deficient in RLIP-/- mice. Because CDE is also necessary for carcinogenic signaling through EGF, WNT, TGFβ and other cancer-specific peptide hormones, and because RLIP-/- mice are cancer-resistant, we reasoned that depletion of RLIP by an antisense approach should cause cancer regression in human cancer xenografts. This prediction has been confirmed in studies of xenografts from lung, kidney, prostate, breast, and pancreatic cancers and melanoma. Because these results suggested an essential role for RLIP in carcinogenesis, and because our studies have also revealed a direct interaction between p53 and RLIP, we reasoned that if RLIP played a central role in carcinogenesis, that development of lymphoma in p53-/- mice, which normally occurs by the time these mice are 6 months old, could be delayed or prevented by depleting RLIP. Recent studies described herein have confirmed this hypothesis, showing complete suppression of lymphomagenesis in p53-/- mice treated with anti-RLIP antisense until the age of 8 months. All control mice developed lymphoma in the thymus or testis as expected. These findings lead to a novel paradigm predicting that under conditions of increased oxidative stress, the consequent increased flux of metabolites in the MAP causes a proportional increase in the rate of CDE. Because CDE inhibits insulin and TNF signaling but promotes EGF, TGFβ, and Wnt signaling, our model predicts that chronic stress-induced increases in RLIP (and consequently CDE) will induce insulin-resistance and enhance predisposition to cancer. Alternatively, generalized depletion of RLIP would antagonize the growth of malignant cells, and concomitantly exert therapeutic insulin-sensitizing effects. Therefore, this review focuses on how targeted depletion or inhibition of RLIP could provide a novel target for treating both obesity and cancer.
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Affiliation(s)
- Sharad S Singhal
- Departments of Medical Oncology & Therapeutics Research, Beckman Research Institute of City of Hope, Comprehensive Cancer Center and National Medical Center, Duarte, CA 91010, United States of America.
| | - Rachana Garg
- Departments of Surgery, Beckman Research Institute of City of Hope, Comprehensive Cancer Center and National Medical Center, Duarte, CA 91010, United States of America
| | - David Horne
- Departments of Molecular Medicine, Beckman Research Institute of City of Hope, Comprehensive Cancer Center and National Medical Center, Duarte, CA 91010, United States of America
| | - Sulabh Singhal
- College of Medicine, Drexel University, Philadelphia, PA 19129, United States of America
| | - Sanjay Awasthi
- Cayman Health, CTMH Doctors Hospital in Cayman Islands, George Town, Cayman Islands
| | - Ravi Salgia
- Departments of Medical Oncology & Therapeutics Research, Beckman Research Institute of City of Hope, Comprehensive Cancer Center and National Medical Center, Duarte, CA 91010, United States of America
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Vinson AJ, Thanamayooran A, Kiberd BA, West K, Siddiqi FS, Gunaratnam L, Tennankore KK. The Association of Pre-Transplant C-Peptide Level with the Development of Post-Transplant Diabetes: A Cohort Study. KIDNEY360 2022; 3:1738-1745. [PMID: 36514718 PMCID: PMC9717663 DOI: 10.34067/kid.0003742022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/28/2022] [Indexed: 01/12/2023]
Abstract
Background Post-transplant diabetes mellitus (PTDM) is an important complication after kidney transplantation that results in reduced patient and allograft survival. Although there are established risk factors for PTDM, whether pretransplant C-peptide levels associate with PTDM is unknown. Therefore, in this study, we aimed to examine the association of pretransplant C-peptide levels with PTDM. Methods This was a cohort study of nondiabetic adult patients who underwent kidney transplant in Nova Scotia, Canada, between January 1, 2016, and March 31, 2021, with fasting C-peptide levels measured before transplant. Multivariable logistic regression was used to determine the association of pretransplant C-peptide (dichotomized around the median) with PTDM at 1 year post transplant. Given the known association between pretransplant obesity and PTDM, we repeated our primary analysis in a cohort restricted to a BMI of 20-35 kg/m2. Results The median C-peptide value was 3251 (Q1 2480, Q3 4724); pretransplant C-peptide level was dichotomized at 3000 pmol/L. PTDM occurred in 25 (19%) individuals. Thirty percent of patients in the high and only 2% of patients in the low C-peptide groups developed PTDM (P<0.001). A C-peptide level ≥3000 pmol/L was strongly associated with PTDM in multivariable analysis (OR=18.9, 95% CI, 2.06 to 174.2). In a restricted cohort with a BMI of 20-35 kg/m2, an elevated pretransplant C-peptide remained independently associated with the risk of PTDM (OR=15.7, 95% CI, 1.64 to 150.3). C-peptide was the only factor independently associated with PTDM in this restricted BMI cohort. Conclusions A pretransplant C-peptide level ≥3000 pmol/L was associated with a nearly 20-fold increased odds of PTDM at 1 year post kidney transplantation. Identifying patients with high pretransplant C-peptide levels may therefore help identify those at risk for PTDM who may benefit from focused preventative and therapeutic interventions and support.
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Affiliation(s)
- Amanda J. Vinson
- Division of Nephrology, Department of Medicine, Dalhousie University, Halifax, Canada
| | - Aran Thanamayooran
- Division of Nephrology, Department of Medicine, Dalhousie University, Halifax, Canada
| | - Bryce A. Kiberd
- Division of Nephrology, Department of Medicine, Dalhousie University, Halifax, Canada
| | - Kenneth West
- Division of Nephrology, Department of Medicine, Dalhousie University, Halifax, Canada
| | - Ferhan S. Siddiqi
- Division of Endocrinology and Metabolism, Department of Medicine, Dalhousie University, Halifax, Canada
| | - Lakshman Gunaratnam
- Multiorgan Transplant Program, London Health Sciences Centre, London, Canada,Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Canada
| | - Karthik K. Tennankore
- Division of Nephrology, Department of Medicine, Dalhousie University, Halifax, Canada
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11
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Surgical Wound Dehiscence in Kidney Transplantation: Risk Factors and Impact on Graft Survival. Transplant Proc 2021; 54:27-31. [PMID: 34876270 DOI: 10.1016/j.transproceed.2021.09.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 09/28/2021] [Indexed: 12/27/2022]
Abstract
BACKGROUND Surgical wound dehiscence (SWD) is a frequent complication after kidney transplantation (KT) but there is not enough evidence of its impact on graft survival. METHODS A retrospective cohort study including all KT patients with SWD in our center from January 2015 to July 2020 was performed. A case-control study was performed and for each case of SWD, 2 controls were selected (2:1). To identify risk factors for SWD, a logistic regression analysis was carried out and a multivariable Cox regression was used to describe risk factors for graft survival. RESULTS In our center, 503 KT were performed, and 39 patients presented SWD. They were older (62.1 vs 57.1 years; P = .030), most had diabetes mellitus (59% vs 28.6%; P = .002) and their body mass index was higher (31 vs 26.9 kg/m2; P < .001). In multivariable logistic regression analysis, diabetes mellitus (P = .024) and a body mass index ≥30 kg/m2 at time of transplantation (P = .018) were predictors of SWD. A higher rate of delayed graft function was described in SWD (P = .013) and it was associated with a longer hospital stay (20.9 vs 15 days; P = .004). Graft survival was lower in patients with SWD (P = .036). In multivariable Cox regression analysis, time in renal replacement therapy (P = .020) and SWD (P = .028) were predictors of shorter graft survival. CONCLUSION SWD is a risk factor for graft survival. The presence of diabetes mellitus and a higher body mass index are predictors for the appearance of this complication.
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