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Acute cellular rejection

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https://www.readbyqxmd.com/read/29785692/impact-of-enteral-nutrition-with-an-immunomodulating-diet-enriched-with-hydrolyzed-whey-peptide-on-infection-after-liver-transplantation
#1
Naoko Kamo, Toshimi Kaido, Yuhei Hamaguchi, Ryuji Uozumi, Shinya Okumura, Atsushi Kobayashi, Hisaya Shirai, Shintaro Yagi, Hideaki Okajima, Shinji Uemoto
BACKGROUND: Infection is a leading cause of death after liver transplantation (LT). Therefore, prevention of infection is crucial for improving outcomes after LT. We examined the impact of early enteral nutrition with an immunomodulating diet (IMD) enriched with hydrolyzed whey peptide (HWP) formulation on infection after living donor LT (LDLT), focusing on sarcopenia. METHODS: This study enrolled 279 consecutive patients who underwent primary LDLT at our institute between January 2008 and April 2015...
May 21, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29779238/the-role-of-transbronchial-cryobiopsy-in-lung-transplantation
#2
M Angeles Montero, Javier de Gracia, Mario Culebras, Jacqueline Mugnier, Antonio Álvarez, Cristina Berastegui, Cristian Ortiz-Villalón
INTRODUCTION: Lung transplant monitoring is usually assessed by forceps transbronchial biopsies. These types of biopsies show limited reliability and high degree of variability due to insufficient material and compression artefact, which lead to misinterpretation and eventually mistreatment of the transplanted patients. The following study was undertaken to assess the diagnostic yield, histological quality and safety of cryobiopsy in comparison with conventional forceps biopsy for sampling lung tissue in transplant recipients...
May 19, 2018: Histopathology
https://www.readbyqxmd.com/read/29776597/the-role-of-fdg-pet-in-detecting-rejection-after-liver-transplantation
#3
Ashley M Watson, Neal Bhutiani, Prejesh Philips, Eric G Davis, Mary Eng, Robert M Cannon, Christopher M Jones
BACKGROUND: The activation and increased metabolic activity of T cells in acute cellular rejection could allow fluoro-2-deoxyglucose positron emission tomography to be utilized for detection of acute cellular rejection. The objective of this study was to evaluate the effectiveness of fluoro-2-deoxyglucose positron emission tomography in detecting acute cellular rejection in the clinical setting. METHODS: Fluoro-2-deoxyglucose positron emission tomography studies were performed on 88 orthotopic liver transplant patients at 7 and 17 days postoperatively (first positron emission tomography and second positron emission tomography, respectively)...
May 15, 2018: Surgery
https://www.readbyqxmd.com/read/29774602/pancreas-transplantation-using-compatible-but-non-identical-abo-blood-group-donors
#4
Santosh Nagaraju, Richard S Mangus, John A Powelson, Jonathan A Fridell
METHODS: A review of all pancreas transplants from a single institution from 01/2003 to 07/2016 (n=606) revealed 41 recipients of a NIC donor pancreas which were matched for age, race, gender, year and type of transplant with 41 ABO identical cases. Groups were compared for allograft survival, incidence of acute cellular rejection (ACR), length of hospital stay, 3-month readmissions and transfusion requirements. Serum haptoglobin and Lactate dehydrogenase were used to identify hemolysis in patients requiring repeated transfusions without overt blood loss...
May 17, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29769027/immune-monitoring-after-pediatric-liver-transplantation-the-prospective-chilsfree-cohort-study
#5
Imeke Goldschmidt, André Karch, Rafael Mikolajczyk, Frauke Mutschler, Norman Junge, Eva Doreen Pfister, Tamara Möhring, Lorenzo d'Antiga, Patrick McKiernan, Deirdre Kelly, Dominique Debray, Valérie McLin, Joanna Pawlowska, Loreto Hierro, Kerstin Daemen, Jana Keil, Christine Falk, Ulrich Baumann
BACKGROUND: Although trough levels of immunosuppressive drugs are largely used to monitor immunosuppressive therapy after solid organ transplantation, there is still no established tool that allows for a validated assessment of functional degree of immunosuppression or the identification of clinically relevant over- or under-immunosuppression, depending on graft homeostasis. Reliable non-invasive markers to predict biopsy proven acute rejection (BPAR) do not exist. Literature data suggest that longitudinal measurements of immune markers might be predictive of BPAR, but data in children are scarce...
May 16, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29754764/monitoring-of-early-humoral-immunity-to-identify-lung-recipients-at-risk-for-development-of-serious-infections-a-multicenter-prospective-study
#6
Elizabeth Sarmiento, Jose Cifrian, Leticia Calahorra, Carles Bravo, Sonia Lopez, Rosalia Laporta, Piedad Ussetti, Amparo Sole, Carmen Morales, Alicia de Pablos, Maria Jaramillo, Ikram Ezzahouri, Sandra García, Joaquin Navarro, Marcos Lopez-Hoyos, Javier Carbone
BACKGROUND: Infection is still a leading cause of death during the first year after lung transplantation. We performed a multicenter study among teaching hospitals to assess monitoring of early humoral immunity as a means of identifying lung recipients at risk of serious infections. METHODS: We prospectively analyzed 82 adult lung recipients at 5 centers in Spain. Data were collected before transplantation and at 7 and 30 days after transplantation. Biomarkers included IgG, IgM, IgA, complement factors C3 and C4, titers of antibodies to pneumococcal polysaccharide antigens (IgG, IgA, IgM) and antibodies to cytomegalovirus (IgG), and serum B-cell activating factor (BAFF) levels...
April 6, 2018: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29735782/an-overview-of-liver-transplant-pathology-data-from-a-tertiary-referral-centre-in-western-india
#7
Fiona Fonseca, Bijal Kulkarni, Meenal Hastak, Vinay Kumaran, Vibha Varma, Sorabh Kapoor
INTRODUCTION AND AIM: 1. Study of liver explants - Etiologic types of end-stage chronic liver disease (ESCLD) and acute liver failure (ALF) in adults and children. 2. Assessment of donor steatosis and incidental granulomas. 3. Post-transplant liver biopsies. MATERIAL AND METHODS: Specimens of 180 explant hepatectomies, 173 donor wedge and 30 core liver biopsies, and 58 post transplant liver biopsies received in our department from April 2013 to March 2017. RESULTS: 1...
April 9, 2018: Annals of Hepatology
https://www.readbyqxmd.com/read/29735025/status-of-adult-living-donor-liver-transplantation-in-the-united-states-results-from-the-adult-to-adult-living-donor-liver-transplantation-cohort-study
#8
REVIEW
Samir Abu-Gazala, Kim M Olthoff
This article reviews the Adult-to-Adult Living Donor Liver Transplant Cohort Study (A2ALL). The findings show that the number of adult-to-adult living donor liver transplants is consistently increasing. Living donor liver transplantation has an important benefit for patients with acute liver failure, does not compromise donor safety, and has lower rates of acute cellular rejection in biologically related donor and recipient. The conclusions from the A2ALL consortium have been critical in transplant advancement, supporting increased use to help decrease waitlist death and improve long-term survival of transplant recipients...
June 2018: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/29733487/the-prognostic-value-of-urinary-chemokines-at-6-months-after-pediatric-kidney-transplantation
#9
Claire Mockler, Atul Sharma, Ian W Gibson, Ang Gao, Alexander Wong, Julie Ho, Tom D Blydt-Hansen
Pediatric kidney transplantation is lifesaving, but long-term allograft survival is still limited by injury processes mediated by alloimmune inflammation that may otherwise be clinically silent. Chemokines associated with alloimmune inflammation may offer prognostic value early post-transplant by identifying patients at increased risk of poor graft outcomes. We conducted a single-center prospective cohort study of consecutive pediatric kidney transplant recipients (<19 years). Urinary CCL2 and CXCL10 measured at 6 months post-transplant were evaluated for association with long-term eGFR decline, allograft survival, and concomitant acute cellular rejection histology...
May 7, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29731083/single-center-experience-using-marginal-liver-grafts-in-korea
#10
P-J Park, Y-D Yu, Y-I Yoon, S-R Kim, D-S Kim
BACKGROUND: Liver transplantation (LT) is an established therapeutic modality for patients with end-stage liver disease. The use of marginal donors has become more common worldwide due to the sharp increase in recipients, with a consequent shortage of suitable organs. We analyzed our single-center experience over the last 8 years in LT to evaluate the outcomes of using so-called "marginal donors." METHODS: We retrospectively analyzed the database of all LTs performed at our institution from 2009 to 2017...
May 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29701351/heart-transplantation-early-results-of-two-different-regimes-of-immnunosuppression
#11
Carlos Branco, David Prieto, André Antunes, Manuel Batista, Manuel J Antunes
INTRODUCTION: The management of induction and maintenance immunosuppression therapy after heart transplantation (HT) remains a controversial issue. The dosage and the timing has been a changing target. We aimed at evaluate the incidence of acute cellular rejection (ACR) [≥1R grade], major infection and survival in first year after HT in patients receiving two different induction immunosuppression regimes and with a reduction in intensity of triple maintenance immunosuppression dose...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29697356/early-immune-response-to-acute-gastric-fluid-aspiration-in-a-rat-model-of-lung-transplantation
#12
Jui-Chih Chang, Sadé M Finn, Robert Patrick Davis, Nathan L Sanders, Zoie E Holzknecht, Mary Lou Everett, Andrew S Barbas, William Parker, Shu S Lin
OBJECTIVES: Chronic aspiration of gastric fluid contents can decrease long-term survival of pulmonary transplants due to development of obliterative bronchiolitis. However, little is known about the early immune response and the cascade of events involved in the development of obliterative bronchiolitis. MATERIALS AND METHODS: We utilized a rat orthotopic pulmonary transplant model and a single aspiration of either gastric fluid or normal saline to investigate the histologic, cellular, and cytokine changes associated with an acute gastric fluid aspiration event compared with normal saline at 2 and 10 days after aspiration...
April 26, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29687961/human-leukocyte-antigens-antibodies-after-lung-transplantation-primary-results-of-the-halt-study
#13
Ramsey R Hachem, Malek Kamoun, Marie M Budev, Medhat Askar, Vivek N Ahya, James C Lee, Deborah J Levine, Marilyn S Pollack, Gundeep S Dhillon, David Weill, Kenneth B Schechtman, Lorriana E Leard, Jeffrey A Golden, LeeAnn Baxter-Lowe, Thalachallour Mohanakumar, Dolly B Tyan, Roger D Yusen
Donor-specific antibodies (DSA) to mismatched human leukocyte antigens (HLA) are associated with worse outcomes after lung transplantation. To determine the incidence and characteristics of DSA early after lung transplantation, we conducted a prospective multi-center observational study that used standardized treatment and testing protocols. Among 119 transplant recipients, 43 (36%) developed DSA: 6 (14%) developed DSA only to class I HLA, 23 (53%) developed DSA only to class II HLA, and 14 (33%) developed DSA to both class I and class II HLA...
April 24, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29680337/t1-mapping-by-cardiac-magnetic-resonance-and-multidimensional-speckle-tracking-strain-by-echocardiography-for-the-detection-of-acute-cellular-rejection-in-cardiac-allograft-recipients
#14
Leyla Elif Sade, Tuncay Hazirolan, Hatice Kozan, Handan Ozdemir, Mutlu Hayran, Serpil Eroglu, Bahar Pirat, Atilla Sezgin, Haldun Muderrisoglu
OBJECTIVES: The aim of this study was to test the hypothesis that echocardiographic strain imaging, by tracking subtle alterations in myocardial function, and cardiac magnetic resonance T1 mapping, by quantifying tissue properties, are useful and complement each other to detect acute cellular rejection in heart transplant recipients. BACKGROUND: Noninvasive alternatives to endomyocardial biopsy are highly desirable to monitor acute cellular rejection. METHODS: Surveillance endomyocardial biopsies, catheterizations, and echocardiograms performed serially according to institutional protocol since transplantation were retrospectively reviewed...
April 14, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29677072/state-of-the-art-role-of-the-dendritic-cell-in-induction-of-allograft-tolerance
#15
Sarah J Rosen, Paul E Harris, Mark A Hardy
Despite decades of research, the induction and maintenance of long-term allograft tolerance without immunosuppression remains an elusive goal in the field of solid organ and cell transplantation. Immunosuppressive medications frequently prevent or minimize acute cellular rejection but have failed to halt anti-donor antibody production and chronic organ rejection. Past efforts aimed at promoting lasting allograft tolerance have focused primarily on peripheral T cell depletion, augmentation of regulatory T cells, or induction via simultaneous hematopoietic stem cell transplantation and facilitation of donor chimerism...
April 19, 2018: Transplantation
https://www.readbyqxmd.com/read/29676812/impact-of-pretransplant-donor-specific-antibodies-on-kidney-allograft-recipients-with-negative-flow-cytometry-crossmatches
#16
Hyunwook Kwon, Young Hoon Kim, Ji Yoon Choi, Sung Shin, Joo Hee Jung, Su-Kil Park, Duck Jong Han
The Luminex test can detect low levels of donor-specific antibody (DSA) that cannot be detected by flow-cytometric crossmatching (FCXM) in kidney transplantation (KT). This study evaluated the impact of DSA on clinical outcomes in KT recipients negative on FCXM. Of 575 consecutive patients who underwent living donor KT between January 2013 and July 2016, 494 (85.9%) were DSA-negative and 81 (14.1%) were DSA-positive. Although rates of acute cellular rejection (ACR) at 1 year were similar in the two groups (P = 0...
April 20, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29672580/value-of-perioperative-genitourinary-screening-culture-and-colonization-status-in-predicting-early-urinary-tract-infection-after-renal-transplantation
#17
Ahram Han, Sanghyun Ahn, Seung-Kee Min, Jongwon Ha, Yon Su Kim, Curie Ahn, Sang-Il Min
BACKGROUND: We aimed to assess whether patients colonized with certain organisms in the genitourinary tract would have greater urinary tract infection (UTI) risk during the post-transplantation period, and whether information on the perioperatively colonized organisms may help identify the causal organisms during early UTI. METHODS: We retrospectively reviewed the culture results of preoperative urine, preoperative urethral swab, and postoperative urinary catheter tip specimens of 420 renal transplant recipients...
2018: PloS One
https://www.readbyqxmd.com/read/29668120/cytomegalovirus-infection-in-living-donor-liver-transplant-recipients-significantly-impacts-the-early-post-transplant-outcome-a-single-center-experience
#18
Sanjay Kumar Yadav, Sanjiv Saigal, Narendra Singh Choudhary, Sujeet Saha, Jayant Kumar Sah, Neeraj Saraf, Naveen Kumar, Sanjay Goja, Amit Rastogi, Prashant Bhangui, A S Soin
BACKGROUND: Cytomegalovirus (CMV) is the most common viral infection in liver transplant recipients that influences the outcomes of liver transplantation. However, its impact on early outcomes following living donor liver transplantation (LDLT) is not fully defined in the Indian subcontinent. This study was done to assess the impact of CMV infection on early post-transplant outcomes in LDLT recipients. METHODS: Out of 272 LDLTs performed from January 2012 to April 2013, 151 recipients underwent CMV viral load analysis in plasma within 90 days post LDLT based on clinical suspicion...
April 18, 2018: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29661435/transient-elastography-in-acute-cellular-rejection-following-liver-transplantation-systematic-review
#19
L S Nacif, C D C Gomes, M N Mischiatti, V Kim, D Paranaguá-Vezozzo, G L Reinoso, F J Carrilho, L C D'Albuquerque
BACKGROUND: Transient elastography (TE) is a noninvasive technique that measures liver stiffness. When an inflammatory process is present, this is shown by elevated levels of stiffness. Acute cellular rejection (ACR) is a consequence of an inflammatory response directed at endothelial and bile epithelial cells, and it is diagnosed through liver biopsy. This is a systematic review of the viability of TE in ACR following liver transplantation. METHODS: The Cochrane Library, Embase, and Medline PubMed databases were searched and updated to November 2016...
April 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29660004/renal-transplant-outcomes-and-de-novo-donor-specific-anti-human-leukocyte-antigen-antibodies-a-systematic-review
#20
Ankit Sharma, Joshua R Lewis, Wai H Lim, Suetonia Palmer, Giovanni Strippoli, Jeremy R Chapman, Stephen I Alexander, Jonathan C Craig, Germaine Wong
Background: Pre-transplant donor-specific anti-human leukocyte antigen antibodies (DSAs) are known risk factors for acute rejection and reduced graft survival after kidney transplantation. DSAs may also develop de novo DSAs (dnDSAs) after transplantation but the clinical implications of these antibodies remain uncertain. Methods: We undertook a systematic review of observational studies that examined the association between dnDSAs and graft and patient outcomes (through August 2017) with the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system of reporting used to assess the quality of evidence available...
April 11, 2018: Nephrology, Dialysis, Transplantation
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