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Intestinal transplant

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https://www.readbyqxmd.com/read/28324830/chitinase-3-like-1-deficient-donor-splenocytes-accentuated-the-pathogenesis-of-acute-graft-versus-host-diseases-through-regulating-t-cell-expansion-and-type-i-inflammation
#1
Zengyao Li, Jian Gu, Jing Liu, Qin Zhu, Hao Lu, Yunjie Lu, Jianhua Rao, Ling Lu, Xuehao Wang
Acute graft-versus-host disease (aGVHD) is a major complication following transplantation, limiting the success of this therapy. Chitinase 3-like-1 (CHI3L1), a member of the glycosyl hydrolase 18 family, plays a critical role in bacterial infections, allergic disease and a variety of malignancies. Here, we investigated whether CHI3L1 could affect the pathogenesis of aGVHD in a mouse allo-HCT model. In this study, we show that CHI3L1 deficiency in donor T cells increased the severity of aGVHD through enhancing systemic and local inflammation...
March 16, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28319561/pediatric-enteric-neuropathies-diagnosis-and-current-management
#2
Maggie L Westfal, Allan M Goldstein
PURPOSE OF REVIEW: Neurointestinal diseases are increasingly recognized as causes of significant gastrointestinal morbidity in children. This review highlights the most common pediatric enteric neuropathies and their diagnosis and management, emphasizing insights and discoveries from the most recent literature available. RECENT FINDINGS: The embryologic and histopathologic causes of enteric neuropathies are varied. They range from congenital aganglionosis in Hirschsprung disease, to autoimmune-mediated loss of neuronal subtypes in esophageal achalasia and Chagas disease, to degenerative neuropathies in some cases of chronic intestinal pseudo-obstruction and gastroparesis...
March 17, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28319059/camk2%C3%AE-in-intestinal-epithelial-cells-modulates-colitis-associated-colorectal-carcinogenesis-via-enhancing-stat3-activation
#3
X Ma, Z Meng, L Jin, Z Xiao, X Wang, W M Tsark, L Ding, Y Gu, J Zhang, B Kim, M He, X Gan, J E Shively, H Yu, R Xu, W Huang
Inflammation is one of the major risk factors for cancer. Here, we show that calcium/calmodulin-dependent protein kinase II gamma (CAMK2γ) in intestinal epithelial cells (IECs) modulates inflammatory signals and promotes colitis-associated cancer (CAC) in mice. We have identified CAMK2γ as a downstream target of colitis-induced WNT5A signaling. Furthermore, we have shown that CAMK2γ protects against intestine tissue injury by increasing IEC survival and proliferation. Calcium/calmodulin-dependent protein kinase II gamma knockout mice displayed reduced CAC...
March 20, 2017: Oncogene
https://www.readbyqxmd.com/read/28315818/sclerosing-encapsulated-peritonitis-a-devastating-and-infrequent-disease-complicating-kidney-transplantation-case-report-and-literature-review
#4
Liliana Caicedo, Alejandro Delgado, Luis A Caicedo, Juan Carlos Bravo, Laura S Thomas, Martin Rengifo, Jorge I Villegas, Oscar Serrano, Gabriel J Echeverri
INTRODUCTION: Sclerosing Encapsulating Peritonitis (SEP) is a rare condition with an incidence of up to 3% and a mortality of up to 51% among peritoneal dialysis (PD) patients (Brown et al., Korte et al. and Kawanishi et al.). In the last ten years, the incidence of SEP in kidney transplant recipients has increased (Nakamoto, de Sousa et al. and Korte et al.). PRESENTATION OF CASE: A 31-year old male with a 15 years history of PD and later kidney retransplantation was admitted to the emergency service after experiencing several weeks of diffuse abdominal pain which had escalated to include vomiting and diarrhea during the 24h previous to admission...
March 1, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28296584/intestinal-microbiota-and-relapse-after-hematopoietic-cell-transplantation
#5
Jonathan U Peled, Sean M Devlin, Anna Staffas, Melissa Lumish, Raya Khanin, Eric R Littmann, Lilan Ling, Satyajit Kosuri, Molly Maloy, John B Slingerland, Katya F Ahr, Kori A Porosnicu Rodriguez, Yusuke Shono, Ann E Slingerland, Melissa D Docampo, Anthony D Sung, Daniela Weber, Amin M Alousi, Boglarka Gyurkocza, Doris M Ponce, Juliet N Barker, Miguel-Angel Perales, Sergio A Giralt, Ying Taur, Eric G Pamer, Robert R Jenq, Marcel R M van den Brink
Purpose The major causes of mortality after allogeneic hematopoietic-cell transplantation (allo-HCT) are relapse, graft-versus-host disease (GVHD), and infection. We have reported previously that alterations in the intestinal flora are associated with GVHD, bacteremia, and reduced overall survival after allo-HCT. Because intestinal bacteria are potent modulators of systemic immune responses, including antitumor effects, we hypothesized that components of the intestinal flora could be associated with relapse after allo-HCT...
March 15, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28296583/relationship-between-intestinal-bacteria-and-the-anticancer-effect-of-hematopoietic-stem-cell-transplantation
#6
Joseph H Antin
No abstract text is available yet for this article.
March 15, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28295952/long-term-outcomes-of-living-related-small-intestinal-transplantation-in-children-a-single-center-experience
#7
Sandra Garcia Aroz, Ivo Tzvetanov, Elizabeth Anne Hetterman, Hoonbae Jeon, Jose Oberholzer, Giuliano Testa, Eunice John, Enrico Benedetti
Pediatric patients with irreversible intestinal failure present a significant challenge to meet the nutritional needs that promote growth. From 2002 to 2013, 13 living-related small intestinal transplantations were performed in 10 children, with a median age of 18 months. Grafts included isolated living-related intestinal transplantation (n=7), and living-related liver and small intestine (n=6). The immunosuppression protocol consisted of induction with thymoglobulin and maintenance therapy with tacrolimus and steroids...
March 12, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28295657/severe-acute-cellular-rejection-after-intestinal-transplantation-is-associated-with-poor-patient-and-graft-survival
#8
Genevieve Huard, Thomas D Schiano, Jang Moon, Kishore Iyer
BACKGROUND: Severe acute cellular rejection (ACR) occurs frequently after intestinal transplantation (ITx). AIM: To evaluate the outcomes and the risk factors for graft failure and mortality in patients with severe ACR after ITx. METHODS: Retrospective study evaluating all ITx recipients who developed severe ACR between 01/2000 and 07/2014. Demographic and histologic data were reviewed. RESULTS: 20/126 (15.9%) ITx recipients developed severe ACR...
March 10, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28294563/a-new-material-for-tissue-engineered-vagina-reconstruction-acellular-porcine-vagina-matrix
#9
Jing-Kun Zhang, Run-Xuan Du, Lin Zhang, Ya-Nan Li, Ming-le Zhang, Shuo Zhao, Xiang-Hua Huang, Yan-Fang Xu
Acellular matrix materials have been widely used to repair various tissues and organs. According to the plastic principle, when a part of the body is lost, it should be replaced with a similar material. Therefore, the use of a homologous organ-specific acellular vaginal tissue in vagina reconstruction repair surgery may show good results. However, the acellular vagina matrix (AVM) form large vertebrates is difficult to isolate. In this study, we described a multi-step method to prepare porcine AVM and evaluated the efficacy of acellularization...
March 10, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28293920/the-intriguing-link-between-the-intestinal-microbiota-and-cardiovascular-disease
#10
Giuseppe Lippi, Elisa Danese, Camilla Mattiuzzi, Emmanuel J Favaloro
Human microbiota is a term conventionally used to define the normal flora of microbes living in all of us, most of which are resident in the gastrointestinal tract. Despite it having been known for some time that the vast majority of intestinal bacteria exert a strong influence on human life, recent technologic breakthroughs have made it possible to more accurately characterize the host microbial communities and explore their relationship with many human diseases. Notably, the evidence accumulated over the past 10 years suggests that a reasonable relationship can now be established between gut microbiota composition and the risk of cardiovascular disease...
March 14, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28289671/encapsulating-peritoneal-sclerosis-in-liver-transplant-recipients-a-report-of-2-cases
#11
Kyo Won Lee, Chan Woo Cho, Nuri Lee, Sanghoon Lee, Jong Man Kim, Gyu-Seong Choi, Choon Hyuck David Kwon, Jae-Won Joh, Suk-Koo Lee
Encapsulating peritoneal sclerosis (EPS) is a rare cause of intestinal obstruction by a thick fibrous membrane wrapping around the small intestine. It is a possible complication after liver transplantation (LT) that can be fatal. This report describes 2 cases of EPS after LT that were successfully treated with surgery, corticosteroids, tamoxifen, and mammalian target of rapamycin inhibitor. After treatment in both cases, the patients were able to start oral feeding and have been symptom free for more than 1 year...
March 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28286571/we-are-not-alone-a-case-for-the-human-microbiome-in-extra-intestinal-diseases
#12
EDITORIAL
S Shivaji
BACKGROUND: "Dysbiosis" in the gut microbiome has been implicated in auto-immune diseases, in inflammatory diseases, in some cancers and mental disorders. The challenge is to unravel the cellular and molecular basis of dysbiosis so as to understand the disease manifestation. MAIN BODY: Next generation sequencing and genome enabled technologies have led to the establishment of the composition of gut microbiomes and established that "dysbiosis" is the cause of several diseases...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28286566/gastrointestinal-manifestations-of-mitochondrial-disorders-a-systematic-review
#13
REVIEW
Josef Finsterer, Marlies Frank
Mitochondrial disorders (MIDs) due to respiratory-chain defects or nonrespiratory chain defects are usually multisystem conditions [mitochondrial multiorgan disorder syndrome (MIMODS)] affecting the central nervous system (CNS), peripheral nervous system, eyes, ears, endocrine organs, heart, kidneys, bone marrow, lungs, arteries, and also the intestinal tract. Frequent gastrointestinal (GI) manifestations of MIDs include poor appetite, gastroesophageal sphincter dysfunction, constipation, dysphagia, vomiting, gastroparesis, GI pseudo-obstruction, diarrhea, or pancreatitis and hepatopathy...
January 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28283650/culturing-human-intestinal-stem-cells-for-regenerative-applications-in-the-treatment-of-inflammatory-bowel-disease
#14
REVIEW
Fredrik Eo Holmberg, Jakob B Seidelin, Xiaolei Yin, Benjamin E Mead, Zhixiang Tong, Yuan Li, Jeffrey M Karp, Ole H Nielsen
Both the incidence and prevalence of inflammatory bowel disease (IBD) is increasing globally; in the industrialized world up to 0.5% of the population are affected and around 4.2 million individuals suffer from IBD in Europe and North America combined. Successful engraftment in experimental colitis models suggests that intestinal stem cell transplantation could constitute a novel treatment strategy to re-establish mucosal barrier function in patients with severe disease. Intestinal stem cells can be grown in vitro in organoid structures, though only a fraction of the cells contained are stem cells with regenerative capabilities...
March 10, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28282321/intestinal-transplantation-a-review
#15
Larry Loo, Georgio Vrakas, Srikanth Reddy, Philip Allan
PURPOSE OF REVIEW: The purpose of this article is to review the existing literature on the current indications, surgical techniques, immunosuppressive therapy and outcomes following intestinal transplantation (ITx). RECENT FINDINGS: Over recent years, ITx has become a more common operation with approximately 2500 procedures carried out worldwide by 2014. It is reserved for patients with intestinal failure and who have developed complications of home parenteral nutrition or who have a high risk of dying from their underlying disease...
March 9, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28280702/mycophenolate-mofetil-toxicity-mimicking-acute-cellular-rejection-in-a-small-intestinal-transplant
#16
Ross Apostolov, Khashayar Asadi, Julie Lokan, Ning Kam, Adam Testro
Mycophenolate mofetil (MMF) is an important medication used for maintenance immunosuppression in solid organ transplants. A common gastrointestinal (GI) side effect of MMF is enterocolitis, which has been associated with multiple histological features. There is little data in the literature describing the histological effects of MMF in small intestinal transplant (SIT) recipients. We present a case of MMF toxicity in a SIT recipient, with histological changes in the donor ileum mimicking persistent acute cellular rejection (ACR)...
February 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28279965/lower-levels-of-vitamin-a-are-associated-with-increased-gastrointestinal-graft-versus-host-disease-in-children
#17
Dana T Lounder, Pooja Khandelwal, Christopher Dandoy, Sonata Jodele, Michael Grimley, Gregory Wallace, Adam Lane, Cynthia Taggart, Ashley Teusink-Cross, Kelly Lake, Stella M Davies
Vitamin A promotes development of mucosal tolerance and enhances differentiation of regulatory T cells. Vitamin A deficiency impairs epithelial integrity, increasing intestinal permeability. We hypothesized that higher vitamin A levels would reduce risk of graft versus host disease through reduced intestinal permeability, reduced mucosal injury, and reduced lymphocyte homing to the gut. We tested this hypothesis in a cohort study of 114 consecutive patients undergoing allogeneic stem cell transplant. Free vitamin A levels were measured in plasma at day 30 post-transplant...
March 9, 2017: Blood
https://www.readbyqxmd.com/read/28279659/intensive-early-rehabilitation-in-the-intensive-care-unit-for-liver-transplant-recipients-a-randomised-controlled-trial
#18
Pierre Maffei, Sandrine Wiramus, Laurent Bensoussan, Laurence Bienvenu, Eric Haddad, Sophie Morange, Mohamed Fathallah, Jean Hardwigsen, Jean-Michel Viton, Y Patrice Le Treut, Jacques Albanese, Emilie Gregoire
OBJECTIVE: To validate the feasibility and tolerance of an intensive rehabilitation protocol initiated during the postoperative period in Intensive Care Unit (ICU) in liver transplant recipients. DESIGN: Prospective randomized study SETTING: Intensive Care Unit Post Liver Transplantation PARTICIPANTS: and Interventions: This study compared two groups of liver transplant recipients over a period of one year: the control group (n=20) benefited from the usual treatment applied in the ICU (based on physician prescription for the physiotherapist and applied once a day), while the experimental group (n=20) followed a protocol of early and intensive rehabilitation (based on a written protocol validated by physicians and an evaluation by physiotherapist, with two sessions a day)...
March 6, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28279224/urethral-reconstruction-with-autologous-urine-derived-stem-cells-seeded-in-three-dimensional-porous-small-intestinal-submucosa-in-a-rabbit-model
#19
Yang Liu, Wenjun Ma, Bo Liu, Yangcai Wang, Jiaqiang Chu, Geng Xiong, Lianju Shen, Chunlan Long, Tao Lin, Dawei He, Denis Butnaru, Lyundup Alexey, Yuanyuan Zhang, Deying Zhang, Guanghui Wei
BACKGROUND: Urethral reconstruction is one of the great surgical challenges for urologists. A cell-based tissue-engineered urethra may be an alternative for patients who have complicated long strictures and need urethral reconstruction. Here, we demonstrated the feasibility of using autologous urine-derived stem cells (USCs) seeded on small intestinal submucosa (SIS) to repair a urethral defect in a rabbit model. METHODS: Autologous USCs were obtained and characterized, and their capacity to differentiate into urothelial cells (UCs) and smooth muscle cells (SMCs) was tested...
March 9, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28275312/clinical-and-immunologic-effects-of-faecal-microbiota-transplantation-in-a-patient-with-collagenous-colitis
#20
Sezin Günaltay, Lech Rademacher, Elisabeth Hultgren Hörnquist, Johan Bohr
One to six percent of patients with microscopic colitis are refractory to medical treatment. The effect of faecal microbiota transplantation (FMT) in active collagenous colitis (CC) has, to the best of our knowledge, never been reported before. Here, we report the effect of repeated FMT in a patient with CC. The patient presented with severe symptoms including profuse diarrhea and profound weight loss. Although she responded to budesonide in the beginning, she became gradually refractory to medical treatment, and was therefore treated with FMT...
February 21, 2017: World Journal of Gastroenterology: WJG
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