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https://www.readbyqxmd.com/read/28550788/a-case-report-of-venous-thrombosis-after-kidney-transplantation-we-can-save-the-graft-time-is-the-success-factor
#1
Paulo Roberto Kawano, Hamilto Akihissa Yamamoto, Rodrigo Gerra, Paula Dalsoglio Garcia, Mariana Moraes Contti, Hong Si Nga, Henrique Mochida Takase, Ariane Moyses Bravin, Luis Gustavo Modelli de Andrade
INTRODUCTION: Venous thrombosis is a serious surgical complication that frequently results in loss of kidney graft. CASE PRESENTATION: We report the case of a female patient recipient of a decease kidney transplant that in the tenth postoperative presented with hematuria, graft pain and oliguria. Ultrasound examination was suggestive of venous thrombosis with abnormal doppler waveform pattern and reversal of diastolic flow. She underwent emergency surgical intervention after 2h of diagnosis...
May 19, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28550448/towards-xeno-free-cultures-of-human-limbal-stem-cells-for-ocular-surface-reconstruction
#2
Zala Lužnik, Claudia Breda, Vanessa Barbaro, Stefano Ferrari, Angelo Migliorati, Enzo Di Iorio, Barbara Ferrari, Carlo Griffoni, Andrea Grassetto, Hossein Mostafa Elbadawy, Marina Bertolin
Isolated limbal epithelial stem cells (LESCs) were cultured with or without a 3T3 murine fibroblast feeder-layer (FL) in 4 different culture media on culture plates or on denuded human amniotic membrane (AM) support and fibrin gel support: (1) control medium supplemented with fetal bovine serum; (2) control medium supplemented with the synthetic serum "XerumFree™ XF205" (XF); (3) CnT-20 medium supplemented with "XerumFree™ XF205" (CnT-XF) and (4) CnT-20 medium supplemented with human AB serum (CnT-AB). The three xenogeneic media were compared to standard condition (control + FL) and parameters assessed included cell morphology, proliferative potential, number of passages, assessment of clonogenic and abortive colonies, life span, ∆Np63α expression and epithelial morphology on AM...
May 26, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28550302/antigenicity-of-bovine-pericardium-determined-by-a-novel-immunoproteomic-approach
#3
Katherine V Gates, Ailsa J Dalgliesh, Leigh G Griffiths
Despite bovine pericardium (BP) being the primary biomaterial used in heart valve bioprostheses, recipient graft-specific immune responses remain a significant cause of graft failure. Consequently, tissue antigenicity remains the principal barrier for expanding use of such biomaterials in clinical practice. We hypothesize that our understanding of BP antigenicity can be improved by application of a combined affinity chromatography shotgun immunoproteomic approach to identify antigens that have previously been overlooked...
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28550198/host-derived-cd70-suppresses-murine-graft-versus-host-disease-by-limiting-donor-t-cell-expansion-and-effector-function
#4
Nicholas D Leigh, Rachel E O'Neill, Wei Du, Chuan Chen, Jingxin Qiu, Jonathan D Ashwell, Philip L McCarthy, George L Chen, Xuefang Cao
Allogeneic hematopoietic cell transplantation (allo-HCT) is a potentially curative treatment for hematologic and immunologic diseases. However, graft-versus-host disease (GVHD) may develop when donor-derived T cells recognize and damage genetically distinct normal host tissues. In addition to TCR signaling, costimulatory pathways are involved in T cell activation. CD27 is a TNFR family member expressed on T cells, and its ligand, CD70, is expressed on APCs. The CD27/CD70 costimulatory pathway was shown to be critical for T cell function and survival in viral infection models...
May 26, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28550044/t-cells-lacking-hdac11-have-increased-effector-functions-and-mediate-enhanced-alloreactivity-in-a-murine-model
#5
David M Woods, Karrune V Woan, Fengdong Cheng, Andressa L Sodré, Dapeng Wang, Yongxia Wu, Zi Wang, Jie Chen, John Powers, Javier Pinilla-Ibarz, Yu Yu, Ya Zhang, Xuefeng Wu, Xiaoyan Zheng, Jeffrey Weber, Wayne Hancock, Edward Seto, Alejandro Villagra, Xue-Zhong Yu, Eduardo M Sotomayor
Histone acetylation and the families of enzymes responsible for controlling these epigenetic marks have been implicated in regulating T-cell maturation and phenotype. Here, we demonstrate a previously undefined role of histone deacetylase 11 (HDAC11) in regulating T-cell effector functions. Using EGFP-HDAC11 transgenic reporter mice, we found that HDAC11 expression was lower in effector relative to naïve and central memory T-cell populations, and activation of resting T-cells resulted in its decreased expression...
May 26, 2017: Blood
https://www.readbyqxmd.com/read/28550042/t-cell-expression-of-ahr-inhibits-the-maintenance-of-ptreg-cells-in-the-gi-tract-in-acute-gvhd
#6
Trisha A Dant, Kaifeng L Lin, Danny W Bruce, Stephanie A Montgomery, Oleg V Kolupaev, Hemamalini Bommiasamy, Lisa M Bixby, John T Woosley, Karen P McKinnon, Frank J Gonzalez, Bruce R Blazar, Benjamin G Vincent, James M Coghill, Jonathan S Serody
The Aryl-hydrocarbon-receptor (AhR) is a ligand-activated transcription factor that affects the function and development of immune cells. Here, we show that recipient mice receiving AhR(-/-) T cells have improved survival and decreased acute graft versus host disease (aGvHD) in two different murine allogeneic bone marrow transplant models (BMT). We also show that CD4(+) T cells lacking AhR demonstrate reduced accumulation in secondary lymphoid tissue due to low levels of proliferation 4 days after BMT. Additionally, we found a significant increase in the quantity of peripherally induced regulatory donor T cells (pTregs) in the colon of recipients transplanted with AhR(-/-) T cells 14 days after transplant...
May 26, 2017: Blood
https://www.readbyqxmd.com/read/28549973/targeted-delivery-of-rosmarinic-acid-across-the-blood-brain-barrier-for-neuronal-rescue-using-polyacrylamide-chitosan-poly-lactide-co-glycolide-nanoparticles-with-surface-cross-reacting-material-197-and-apolipoprotein-e
#7
Yung-Chih Kuo, Rajendiran Rajesh
Rosmarinic acid-loaded polyacrylamide-chitosan-poly(lactide-co-glycolide) nanoparticles (RA-PAAM-CH-PLGA NPs) were grafted with cross-reacting material 197 (CRM197) and apolipoprotein E (ApoE) for targeting of the blood-brain barrier (BBB) and rescuing degenerated neurons. The polymeric nanocarriers were prepared by microemulsion, solvent diffusion, grafting, and surface modification, and CRM197-ApoE-RA-PAAM-CH-PLGA NPs were used to treat human brain-microvascular endothelial cells, RWA264.7 cells, and Aβ-insulted SK-N-MC cells...
May 23, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28549964/a-strange-collection-after-surgery-for-an-aneurysm-of-the-popliteal-artery
#8
Gian Franco Veraldi, Luca Mezzetto, Roberta La Mendola, Paolo Criscenti, Marco Macrì, Albino Eccher
The popliteal fossa is the site of several diseases that may be similar in the clinical setting but very different in aetiology, treatment and prognosis. The contemporary presentation of more than one of these conditions is a rare though potentially fatal combination that may lead to a delay in the diagnosis and therapeutic approach. In this report we describe the case of a patient that presented at our Vascular Department for persistent pain and severe swelling of the right popliteal fossa eight months after the surgical treatment of a symptomatic popliteal aneurysm by mean of a dacron prosthetic graft...
May 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28549961/preliminary-results-of-aorfix-tm-stent-graft-to-treat-infrarenal-abdominal-aortic-aneurysms-with-severe-proximal-aortic-neck-angulation
#9
Pietro Volpe, Mafalda Massara, Antonino Alberti, Santo Marino, Alberto Volpe, Daniela Mazzaccaro, Silvia Stegher, Giovanni Nano
BACKGROUND: We report a preliminary experience about endovascular aortic repair (EVAR) of infrarenal abdominal aneurysm (iAAA) with severe proximal aortic neck angulation using the Aorfix(TM) stent graft. METHODS: Data of consecutive patients with iAAA with severe proximal neck angulation submitted to endovascular repair between September 2012 and December 2014 in two Italian centres of Vascular and Endovascular Surgery were retrospectively reviewed and outcomes analyzed using the software JMP 5...
May 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28549960/mycotic-pseudoaneurysm-of-internal-carotid-artery-secondary-to-lemierre-s-syndrome-how-to-do-it
#10
Filippo Benedetto, David Barillà, Narayana Pipitò, Graziana Derone, Andrea Cutrupi, Chiara Barillà
We report the case of a patient with ICA mycotic pseudo-aneurysm secondary to Lemierre's syndrome, urgently treated. A 75 years old man presented to E.R. with a left swelling lesion of the neck and complaining left visions lost since that morning, fever, hypotension and dyspnoea. Since fifteen days before developing symptoms, he had sore throat and odynophagia treated with a broad coverage of antibiotic therapy for presumed streptococcal pharyngitis. Preoperative CTA images revealed a circular lesion, involving the common carotid artery, carotid bulb, and the proximal part of the internal and external carotid arteries...
May 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28549958/a-novel-antegrade-approach-for-simultaneous-carotid-endarterectomy-and-angioplasty-of-proximal-lesions-in-patients-with-tandem-stenosis-of-supraaortic-arch-vessels
#11
Djordje Radak, Slobodan Tanaskovic, Dragan Sagic, Zelimir Antonic, Predrag Gajin, Srdjan Babic, Mihailo Neskovic, Predrag Matic, Vladimir Kovacevic, Dragoslav Nenezic, Nenad Ilijevski
INTRODUCTION: To date all published studies analyzing simultaneous treatment of carotid and proximal atherosclerotic lesions are describing retrograde approach and several technical variations. In the presented study, for the first time antegrade approach is described for simultaneous carotid endarterectomy (CEA) and associated brachiocephalic trunk (BCT) or common carotid artery (CCA) angioplasty in the hybrid operating room. METHODOLOGY: From January 2012 till January 2016 antegrade hybrid procedures were performed in 18 patients...
May 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28549957/three-stage-esophagectomy-combined-with-abdominal-aortic-aneurysm-repair-first-case-in-the-literature
#12
Chris Klonaris, Dimitrios Schizas, Georgios Karaolanis, Dimitrios Athanasiadis, Andreas Alexandrou, Theodore Liakakos
The purpose of this report is to describe the synchronous surgical treatment of an abdominal aortic aneurysm (AAA) with concomitant esophageal cancer (EC) with a three-stage esophagectomy, a real management challenge especially in establishing the therapeutic priorities and the ideal treatment approach. A 65-year old male was referred for treatment in our hospital with the diagnosis of AAA. He complained of general fatigue, weight loss and intermittent dysphagia. Contrast-enhanced CT and upper endoscopy showed the AAA and a large gastroesophageal junction (GEJ) tumor respectively...
May 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28549955/a-peculiar-case-of-type-1-endoleak-after-nellix-endovascular-aneurysm-sac-sealing-clinical-presentation-and-management
#13
O Martinelli, L Irace, R Gattuso, C Belli, M Fresilli, B Gossetti
We report one case of type 1 endoleak (EL) with an outflow via a lumbar artery following Nellix endovascular aneurysm sealing (EVAS) in order to discuss the specific peculiarities and management of this complication. A 64-year-old man ( ASA 3) underwent Nellix EVAS for an asymptomatic infra-renal aortic aneurysm. The 6-month Duplex scanning ultrasound and magnetic resonance imaging showed a type IA endoleak with an outflow via a lumbar artery (LA) combined with a stable aneurysmal sac size. The subsequent 9-month imaging controls showed no changes of the endoleak cavity but there was a slight enlargement in proximal neck size associated with the distal migration of both Nellix grafts...
May 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28549885/the-radial-approach-to-the-wrist-with-styloidectomy-a-cadaver-study
#14
F-A Lecoq, A Sébilo, P Bellemère
The radial approach to the wrist is already used in several surgical techniques such as radial styloidectomy and Zaidemberg's vascularized radial graft. The aim of our work was to describe the surgical anatomy of that approach and to determine the acceptable limits of radial oblique styloidectomy that does not damage the anterior and posterior radiocarpal ligaments. This radial approach was performed on 11 cadaver specimens. The superficial branches of the radial nerve and the antebrachial cephalic vein were carefully located in the superficial plane...
May 23, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28549817/static-tensioning-promotes-hamstring-tendons-force-relaxation-more-reliably-than-cycling-tensioning
#15
Sérgio Rocha Piedade, Inácio Maria Dal Fabbro, Martha Maria Mischan, Cezar Piedade, Nicola Maffulli
BACKGROUND: Graft elongation might be a major reason for increased anterior laxity after anterior cruciate ligament (ACL) reconstruction. This study analyzed the force relaxation values and their stabilization when single strands of the gracilis and semitendinosus tendons underwent cyclic and static tensioning at 2.5% strain level, and compared the efficiency of static and cyclic tensioning in promoting force relaxation. METHODS: Eighteen gracilis tendons and 18 semitendinosus tendons from nine male cadavers (mean age: 22...
May 23, 2017: Knee
https://www.readbyqxmd.com/read/28549771/calcineurin-and-mtor-inhibitor-free-post-transplantation-cyclophosphamide-and-bortezomib-combination-for-graft-versus-host-disease-prevention-after-peripheral-blood-allogeneic-hematopoietic-stem-cell-transplantation-a-phase-i-ii-study
#16
A Samer Al-Homsi, Kelli Cole, Marlee Muilenburg, Austin Goodyke, Muneer Abidi, Ulrich Duffner, Stephanie Williams, Jessica Parker, Aly Abdel-Mageed
Graft-versus-host disease (GvHD) hampers the utility of allogeneic hematopoietic stem cell transplantation (AHSCT). The purpose of this study was to determine the feasibility, safety, and efficacy of a novel combination of post-transplantation cyclophosphamide (PTC) and bortezomib for the prevention of GvHD. Patients undergoing peripheral blood AHSCT for hematological malignancies following reduced-intensity conditioning with grafts from human leukocyte antigen (HLA)-matched related or unrelated donors were enrolled in a phase I-II clinical trial...
May 23, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28549770/inversion-3-cytogenetic-abnormality-in-an-allogeneic-hematopoietic-cell-transplant-recipient-representative-of-a-donor-derived-constitutional-abnormality
#17
Ajoy Dias, Aref Al-Kali, Daniel Van Dyke, Dietger Niederwieser, Vladan Vucinic, Johannes Lemke, Christel Muller, Sebastian Schwind, Anne-Christin Teichmann, Ruth Bakken, Linda J Burns, Mark Litzow
Allogeneic hematopoietic cell transplantation (HCT) is an important treatment for many severe hematological disorders. However HCT can be associated with significant complications including organ toxicity, graft -versus-host disease and relapse. One other serious but rare complication is the transmission of hematologic and non- hematologic diseases from the donor to the recipient. With older donors, the risk of an abnormality in the donor may be higher. Here we describe the transmission of an inversion 3 constitutional cytogenetic abnormality from an unrelated donor to a recipient and review the clinical implications of the discovery of donor-derived constitutional cytogenetic abnormalities...
May 23, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28549768/myasthenia-gravis-after-allogeneic-bone-marrow-transplantation-a-case-report-and-literature-review
#18
Yutaka Tsutsumi, Takashi Kamiishi, Ryo Kikuchi, Shinichi Ito, Satomi Matsuoka, Takanori Teshima
A 52-year-old man with acute myeloid leukemia underwent allogeneic hematopoietic stem cell transplantation and developed extensive chronic graft-versus-host disease and myasthenia gravis (MG), which became involved with oculobulbar and proximal upper and lower limb weakness in 677days. In the literature, we identified 24 cases where MG developed after allo-SCT. Graft-versus-host disease development and male recipients of female donors might be prone to the development of posttransplant MG (odds ratio, 3.75)...
May 18, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28549712/assessment-of-competence-in-evar-procedures-a-novel-rating-scale-developed-by-the-delphi-technique
#19
M Strøm, L Lönn, B Bech, T V Schroeder, L Konge
OBJECTIVE/BACKGROUND: To develop a procedure specific global rating scale for assessment of operator competence in endovascular aortic repair (EVAR). METHODS: A Delphi approach was used to achieve expert consensus. A panel of 32 international experts (median 300 EVAR procedures, range 200-3000) from vascular surgery (n = 21) and radiology (n = 11) was established. The first Delphi round was based on a review of endovascular skills assessment papers, stent graft instructions for use, and structured interviews...
May 23, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28549694/d-dimer-is-associated-with-arterial-and-venous-coronary-artery-bypass-graft-occlusion
#20
Alessandro Parolari, Laura Cavallotti, Daniele Andreini, Veronika Myasoedova, Cristina Banfi, Marina Camera, Paolo Poggio, Fabio Barili, GianLuca Pontone, Luciana Mussoni, Chiara Centenaro, Francesco Alamanni, Elena Tremoli
OBJECTIVE: In this observational prospective study, we assessed the role of clinical variables and circulating biomarkers in graft occlusion at 18 months to identify a signature for graft occlusion. METHODS: A total of 330 patients undergoing primary elective coronary artery bypass grafting were enrolled. Blood collection for biomarker assessment was performed before surgery and discharge. Patients were then scheduled to undergo coronary computed tomography angiography at 18 months follow-up, and 179 patients underwent coronary computed tomography angiography 18 ± 2 months postoperatively...
April 27, 2017: Journal of Thoracic and Cardiovascular Surgery
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