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Obesity and transplant

Thomas Gilliland, Sylvie Dufour, Gerald I Shulman, Kitt Falk Petersen, Sukru H Emre
NAFLD is a common condition linked to obesity, type 2 diabetes, and metabolic syndrome. Simple hepatic steatosis is a risk factor for inflammatory reactions in the liver (NASH), which may lead to cirrhosis. While the mechanism is unclear, NAFLD and NASH are associated with panhypopituitarism, which in the pediatric population often results from craniopharyngioma or pituitary adenoma and the sequelae of treatment, causing hypothyroidism, adrenal insufficiency, hypogonadotropic hypogonadism, and GH deficiency...
October 20, 2016: Pediatric Transplantation
Carolina Frade Magalhaes Girardin Pimentel, Michelle Lai
The progressively increasing rates of obesity have led to a worldwide epidemic of nonalcoholic fatty liver disease (NAFLD), the hepatic manifestation of the metabolic syndrome. It is currently the most common cause of liver disease worldwide and projected to be the leading indication for liver transplantation in the United States by 2020. NAFLD is associated with both liver-related and overall mortality. Undoubtedly, nutrition interventions are key in the treatment of NAFLD, to reverse the disease, and prevent disease progression, complications, and associated comorbidities, including cardiovascular disease and diabetes...
November 2016: Medical Clinics of North America
Sandesh Parajuli, Dana F Clark, Arjang Djamali
Patients with CKD are at increased risk for cardiovascular events, hospitalizations, and mortality. Kidney transplantation (KTx) is the preferred treatment for end-stage kidney disease. Although comorbidities including anemia and bone and mineral disease improve or are even halted after KTx, kidney transplant recipients carry higher cardiovascular mortality risk than the general population, as well as an increased risk of infections, malignancies, fractures, and obesity. When comparing CKD with CKD after transplantation (CKD-T), the rate of decline of estimated glomerular filtration rate (eGFR) is significantly lower in CKD-T...
September 2016: Advances in Chronic Kidney Disease
A Molina Raya, A García Navarro, C San Miguel Méndez, M Domínguez Bastante, M T Villegas Herrera, K Granero, A Becerra Massare, J M Villar Del Moral, M Expósito, Y Fundora Suárez
OBJECTIVE: The aim of this work was to determine the impact of obesity on the morbidity and mortality of liver transplantation (LT) recipients. METHODS: A single-center, observational-cohort, retrospective study was conducted in patients undergoing LT from January 2008 to December 2014 to compare complications and survival between those with body mass index (BMI) <35 kg/m(2) and those with BMI ≥35 kg/m(2). RESULTS: The study included 170 patients: 162 (95...
September 2016: Transplantation Proceedings
Maria Stepanova, Trevor Locklear, Nila Rafiq, Alita Mishra, Chapy Venkatesan, Zobair M Younossi
BACKGROUND: Chronic HCV infection is often considered a contraindication for receiving a heart transplantation. METHODS: From the Scientific Registry of Transplant Recipients, we selected all adults with and without HCV infection who underwent a single organ heart transplantation in 1995-2013; the mortality status was updated in September 2015. RESULTS: A total of 32,812 heart transplant recipients were included; N=756 (2.30%) HCV-positive...
October 14, 2016: Clinical Transplantation
Elaine Hillesheim, Valéria Laguna Salomão Ambrósio, Inalda Facincani
Introduction: Chronic kidney disease in children often determines poor nutritional status. Although renal transplantation (RTx) resolves endocrine and metabolic disorders, growth continues to be suboptimal and excessive weight gain may result in obesity. Objectives: Evaluating the development of height and body mass index in renal transplanted children and adolescents and identifying associated factors with final nutritional status. Methods: We reviewed the medical records of 17 patients with regular follow-ups up to 24 months after RTx...
July 2016: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
Christopher McKee, Dmitry Tumin, Don Hayes, Joseph D Tobias
Adults, older children, and adolescent patients with a BMI categorized as overweight or obese have decreased survival after HTx. Anthropometric correlates of survival after HTx in infants have not been well defined. In a retrospective analysis of the UNOS registry, patients age 0-24 months were classified according to the WHO height-for-age and weight-for-age norms, as well as arbitrary BMI-for-age percentiles. Outcomes of 1-year survival, conditional long-term survival, and cause-specific mortality were examined...
October 13, 2016: Pediatric Transplantation
Shaleen Agarwal, Neerav Goyal, Mohammed Nayeem, Shishir Pareek, Subash Gupta
BACKGROUND: Living donor liver transplant (LDLT) in obese patients raises concerns with regards to obtaining grafts of "adequate" graft recipient weight ratio (GRWR) and the impact of obesity on the outcomes of LDLT. METHODS: LDLT outcomes in patients weighing more than 100 kg were compared with those weighing less than 100 kg. Patients weighing more than 100 kg were divided into 3 categories based on GRWR of the grafts they received. Groups 1, 2 and 3 included patients with GRWR equal to or greater than 0...
October 12, 2016: Liver Transplantation
Michael V Autieri
Visceral adipose tissue is a primary site of chronic inflammation in obesity and may contribute to systemic inflammation and development of atherosclerotic vascular disease. Few studies identify molecular mechanisms and secretory pathways which mediate this process. In this edition of Clinical Science, Kwok et al. utilize a transgenic mouse in which dominant-negative c-Jun NH2 terminal kinase (dnJNK) expression is restricted to adipose tissue to implicate JNK-driven expression of adipocyte fatty acid binding protein (A-FABP) in visceral adipose tissue as a key secretory pathway to exacerbate development of atherosclerosis in ApoE-/- mice...
November 1, 2016: Clinical Science (1979-)
Ilona Kurnatowska, Aneta Małyska, Kamila Wysocka, Katarzyna Mazur, Joanna Krawczyk, Michał Nowicki
BACKGROUND Both adiposity and underweight are negatively associated with graft and patient survival after kidney transplantation (KTx). The aim of this longitudinal study was to evaluate the changes in body mass index (BMI) after KTx and their relations with graft damage markers. MATERIAL AND METHODS The anthropometric measurements of body mass and height were performed in 92 consecutive deceased donor kidney transplant recipients (37 F; 55 M) from a single transplant center. Patient medical history, estimated glomerular filtration rate (eGFR), serum lipids, and ACR (urine albumin-to-creatinine ratio) was obtained from medical charts...
October 11, 2016: Annals of Transplantation: Quarterly of the Polish Transplantation Society
Ali Canbay, Jan-Peter Sowa, Wing-Kin Syn, Jürgen Treckmann
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is a continuously increasing cause of chronic liver disease and a health burden in all populations affected by the obesity and metabolic syndrome pandemic. Cirrhotic alterations or hepatocellular carcinoma developing from NAFLD may require liver transplantation (LTx). METHODS: Current literature was screened for data on LTx in the setting of NAFLD. RESULTS: NAFLD-associated LTx is expected to increase in number and relevance during the next decade...
August 2016: Visc Med
José de Jesús Guerrero-García, Lucrecia Carrera-Quintanar, Rocío Ivette López-Roa, Ana Laura Márquez-Aguirre, Argelia Esperanza Rojas-Mayorquín, Daniel Ortuño-Sahagún
Multiple Sclerosis (MS) is an autoimmune disorder of the Central Nervous System that has been associated with several environmental factors, such as diet and obesity. The possible link between MS and obesity has become more interesting in recent years since the discovery of the remarkable properties of adipose tissue. Once MS is initiated, obesity can contribute to increased disease severity by negatively influencing disease progress and treatment response, but, also, obesity in early life is highly relevant as a susceptibility factor and causally related risk for late MS development...
2016: Mediators of Inflammation
R Thuret, F Kleinclauss, N Terrier, G Karam, M O Timsit
OBJECTIVES: To describe kidney transplantation surgical techniques and to propose strategies in high-risk recipients. MATERIAL AND METHODS: Relevant publications were identified through Medline ( and Embase ( database using the following keywords, alone or in association, "renal transplantation; peripheral arterial disease; obesity; third and fourth transplantation; robotic-assisted kidney transplant; anticoagulant therapy; dual kidney transplant"...
October 6, 2016: Progrès en Urologie
Christian Carlucci, Elaine O Petrof, Emma Allen-Vercoe
The human gut microbiome is a complex ecosystem of fundamental importance to human health. Our increased understanding of gut microbial composition and functional interactions in health and disease states has spurred research efforts examining the gut microbiome as a valuable target for therapeutic intervention. This review provides updated insight into the state of the gut microbiome in recurrent Clostridium difficile infection (CDI), ulcerative colitis (UC), and obesity while addressing the rationale for the modulation of the gut microbiome using fecal microbiota transplant (FMT)-based therapies...
October 1, 2016: EBioMedicine
Zhao Zhang, Emre Turer, Xiaohong Li, Xiaoming Zhan, Mihwa Choi, Miao Tang, Amanda Press, Steven R Smith, Adeline Divoux, Eva Marie Y Moresco, Bruce Beutler
We describe a metabolic disorder characterized by lipodystrophy, hepatic steatosis, insulin resistance, severe diabetes, and growth retardation observed in mice carrying N-ethyl-N-nitrosourea (ENU)-induced mutations. The disorder was ascribed to a mutation of kelch repeat and BTB (POZ) domain containing 2 (Kbtbd2) and was mimicked by a CRISPR/Cas9-targeted null allele of the same gene. Kbtbd2 encodes a BTB-Kelch family substrate recognition subunit of the Cullin-3-based E3 ubiquitin ligase. KBTBD2 targeted p85α, the regulatory subunit of the phosphoinositol-3-kinase (PI3K) heterodimer, causing p85α ubiquitination and proteasome-mediated degradation...
October 5, 2016: Proceedings of the National Academy of Sciences of the United States of America
Daniele Camboni, Matthaeus Zerdzitzki, Stephan Hirt, René Tandler, Michael Weyand, Christof Schmid
OBJECTIVES: A silicone interface at skin level of left ventricular assist device (LVAD) may reduce the risk of driveline (DL) exit site infections when compared with other materials (e.g. velour). The purpose of this study was to evaluate the rate of DL exit site infection according to the presence of silicone or velour at the exit site with the redesigned INCOR, facilitating the positioning of silicone at the exit site. METHODS: The rate of DL exit site infection and overall survival were compared between the two groups (silicone group, n = 16/velour group, n = 24) with 1-year follow-up postimplantation...
October 4, 2016: Interactive Cardiovascular and Thoracic Surgery
Clarisse A Marotz, Amir Zarrinpar
The worldwide prevalence of metabolic syndrome, which includes obesity and its associated diseases, is rising rapidly. The human gut microbiome is recognized as an independent environmental modulator of host metabolic health and disease. Research in animal models has demonstrated that the gut microbiome has the functional capacity to induce or relieve metabolic syndrome. One way to modify the human gut microbiome is by transplanting fecal matter, which contains an abundance of live microorganisms, from a healthy individual to a diseased one in the hopes of alleviating illness...
September 2016: Yale Journal of Biology and Medicine
Eliza W Beal, Dmitry Tumin, Lanla F Conteh, A James Hanje, Anthony J Michaels, Don Hayes, Sylvester M Black, Khalid Mumtaz
There is a paucity of literature examining recipient-donor obesity matching on liver transplantation outcomes. The United Network for Organ Sharing database was queried for first-time recipients of liver transplant whose age was ≥18 between January 2003 and September 2013. Outcomes including patient and graft survival at 30 days, 1 year, and 5 years and overall, liver retransplantation, and length of stay were compared between nonobese recipients receiving a graft from nonobese donors and obese recipient-obese donor, obese recipient-nonobese donor, and nonobese recipient-obese donor pairs...
2016: Journal of Transplantation
Niklas Buescher, Daniel Seehofer, Michael Helbig, Andreas Andreou, Marcus Bahra, Andreas Pascher, Johann Pratschke, Wenzel Schoening
AIM: To characterize major determinants of 20-year survival after liver transplantation (LT). METHODS: This longitudinal single-institution study includes 313 consecutive patients who received a LT between 1988 and 1992. Pretransplant clinical characteristics and laboratory values were assessed and compared between 20-year survivors and non-survivors. Particular attention was paid to the Model for End-Stage Liver Disease (labMELD)-score and the Eurotransplant Donor Risk Index (ET-DRI) to unravel their impact on 20-year survival after LT...
September 24, 2016: World Journal of Transplantation
Suzanne M Boyle, Yimei Li, F P Wilson, Joel D Glickman, Harold I Feldman
♦ Background: Total body water (V) is an imprecise metric for normalization of dialytic urea clearance (Kt). This poses a risk of early mortality/technique failure (TF). We examined differences in the distribution of peritoneal Kt/V when V was calculated with actual weight (AW), ideal weight (IW), and adjusted weight (ADW). We also examined the associations of these Kt/V measurements, Kt/body surface area (BSA), and non-normalized Kt with mortality and TF. ♦ Methods: This is a retrospective cohort study of 534 incident peritoneal dialysis (PD) patients from the Dialysis Morbidity and Mortality Study Wave 2 linked with United States Renal Data System through 2010...
September 28, 2016: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
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