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https://www.readbyqxmd.com/read/28316123/the-msc-adhesion-cascade-insights-into-homing-and-transendothelial-migration
#1
Franziska Nitzsche, Claudia Müller, Barbara Lukomska, Jukka Jolkkonen, Alexander Deten, Johannes Boltze
Mesenchymal stem cells (MSC) are promising candidates for adult cell therapies in regenerative medicine. To fully exert their potential, efficient homing and migration towards lesion sites plays an important role. Local transplantation deposits MSC in spatial proximity to the lesion, but often requires invasive procedures. Systemic administration routes are favored, but require the targeted extravasation of the circulating MSC at the site of injury. Transplanted MSC can indeed leave the blood flow and transmigrate through the endothelial barrier, and reach the lesion site...
March 18, 2017: Stem Cells
https://www.readbyqxmd.com/read/28301575/generation-of-murine-tumor-cell-lines-deficient-in-mhc-molecule-surface-expression-using-the-crispr-cas9-system
#2
Krishna Das, David Eisel, Clarissa Lenkl, Ashish Goyal, Sven Diederichs, Elke Dickes, Wolfram Osen, Stefan B Eichmüller
In this study, the CRISPR/Cas9 technology was used to establish murine tumor cell lines, devoid of MHC I or MHC II surface expression, respectively. The melanoma cell line B16F10 and the murine breast cancer cell line EO-771, the latter stably expressing the tumor antigen NY-BR-1 (EO-NY), were transfected with an expression plasmid encoding a β2m-specific single guide (sg)RNA and Cas9. The resulting MHC I negative cells were sorted by flow cytometry to obtain single cell clones, and loss of susceptibility of peptide pulsed MHC I negative clones to peptide-specific CTL recognition was determined by IFNγ ELISpot assay...
2017: PloS One
https://www.readbyqxmd.com/read/28295643/prophylaxis-of-lymphocele-formation-after-kidney-transplantation-via-peritoneal-fenestration-a-systematic-review
#3
André Leopold Mihaljevic, Patrick Heger, Sepehr Abbasi Dezfouli, Mohammad Golriz, Arianeb Mehrabi
BACKGROUND: Lymphocele formation after kidney transplantation is a frequent complication which causes pain, secondary graft loss, rehospitalisations and reoperations. Therefore prophylaxis of lymphocele formation is of utmost importance. OBJECTIVE: To assess the effectiveness of peritoneal fenestration in renal transplantation to prevent lymphocele development METHODS: A systematic literature search was conducted combined with hand-searches on lymphocele prevention following renal transplantation using peritoneal fenestration...
March 14, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28294559/the-platelet-activating-receptor-c-type-lectin-receptor-2-plays-an-essential-role-in-liver-regeneration-after-partial-hepatectomy-in-mice
#4
Hiroshi Kono, Hideki Fujii, Katsue Suzuki-Inoue, Osamu Inoue, Shinji Furuya, Kazuyoshi Hirayama, Yasuhiro Akazawa, Yuuki Nakata, Chao Sun, Nagaharu Tsukiji, Toshiaki Shirai, Yukio Ozaki
BACKGROUND AND AIM: The aim of the present study was to investigate the role of CLEC-2 in liver regeneration following partial liver resection in mice. MATERIALS AND METHODS: Irradiated chimeric mice transplanted with fetal liver cells from wild-type (WT), CLEC-2 deleted (KO), or CLEC-2 deleted specifically from platelets (flKO) mice were generated. Mice underwent 70% partial hepatectomy (PH). Immunohistochemical staining was performed to investigate the expression of the endogenous ligand for CLEC-2, podoplanin...
March 12, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28289413/mica-and-nkg2d-is-there-an-impact-on-kidney-transplant-outcome
#5
REVIEW
Matilde Risti, Maria da Graça Bicalho
This paper aims to present an overview of MICA and natural killer group 2 member D (NKG2D) genetic and functional interactions and their impact on kidney transplant outcome. Organ transplantation has gone from what can accurately be called a "clinical experiment" to a routine and reliable practice, which has proven to be clinically relevant, life-saving and cost-effective when compared with non-transplantation management strategies of both chronic and acute end-stage organ failures. The kidney is the most frequently transplanted organ in the world (transplant-observatory)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28286765/digital-lengthening-to-treat-finger-deficiency-an-experience-of-201-digits-in-104-patients
#6
Zhenyu Ding, Xiaozhong Zhu, Kai Fu, Xianyou Zheng
Objectives. We evaluated the results of digital lengthening by distraction and second-stage bone graft. Methods. We treated finger deficiency of 201 digits in 104 patients (68 males, 36 females) by digital distraction and second-stage bone graft. The distraction was performed with a rate of 1 mm/day (for the first ten days) and 0.5 mm/day followed by using a self-designed bilateral tubal-helical external fixator. The mean follow-up period was 42 months (range 6 to 60 months). Results. The mean lengthening was 29...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28280650/polycystic-liver-disease-and-sarcoidosis-unusual-coexisting-etiologies-of-portal-hypertension
#7
Waseem Amjad, Sophia Jagroop, Rukma Parthvi
Both polycystic liver disease (PLD) and sarcoidosis can involve liver. Most of the time, liver disease in both conditions is asymptomatic, but they can rarely cause portal hypertension. Our aim is to report a case of a 51-year-old female with a history of adult dominant polycystic kidney disease (ADPKD) and sarcoidosis who presented with multiple episodes of hematemesis. An endoscopy showed grade 3 esophageal varices. A computed tomography (CT) scan of the abdomen showed ascites with polycystic liver, nodular contour, and calcified granuloma...
January 25, 2017: Curēus
https://www.readbyqxmd.com/read/28279192/stroke-alters-behavior-of-human-skin-derived-neural-progenitors-after-transplantation-adjacent-to-neurogenic-area-in-rat-brain
#8
Carlos de la Rosa-Prieto, Cecilia Laterza, Ana Gonzalez-Ramos, Somsak Wattananit, Ruimin Ge, Olle Lindvall, Daniel Tornero, Zaal Kokaia
BACKGROUND: Intracerebral transplantation of human induced pluripotent stem cells (iPSCs) can ameliorate behavioral deficits in animal models of stroke. How the ischemic lesion affects the survival of the transplanted cells, their proliferation, migration, differentiation, and function is only partly understood. METHODS: Here we have assessed the influence of the stroke-induced injury on grafts of human skin iPSCs-derived long-term neuroepithelial-like stem cells using transplantation into the rostral migratory stream (RMS), adjacent to the neurogenic subventricular zone, in adult rats as a model system...
March 9, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28275613/development-of-a-new-interfacility-extracorporeal-membrane-oxygenation-transport-program-for-pediatric-lung-transplantation-evaluation
#9
REVIEW
W Joshua Frazier, Edward G Shepherd, Samantha W Gee
Pediatric lung transplantation is a life-saving intervention for children with irreversible end-stage lung disease. Access to transplant can be limited by geographic isolation from a center or the presence of comorbidities affecting transplant eligibility. Extracorporeal membrane oxygenation (ECMO)-supported patients are an uncommon but historically high-risk cohort of patients considered for lung transplant. We report the development of a service at our center to provide transport services to our hospital for patients unable to wean from ECMO support at their local institution for the purpose of evaluation for lung transplantation by our program...
February 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28274882/vacuum-sealing-drainage-as-a-pre-surgical-adjunct-in-the-treatment-of-complex-open-hand-injuries-report-of-17-cases
#10
Xiao-Feng Niu, Jian-Hua Yi, Guo-Qin Zha, Jun Hu, Yun-Jiang Liu, Liang-Bao Xiao
BACKGROUND: Few studies have been conducted to explore the use of the vacuum sealing drainage (VSD) technique in complex hand injuries. The aim of this study was to report outcomes in patients with complex hand injuries receiving VSD as a coadjuvant treatment prior to second-stage surgery. METHODS: This case series study retrospectively reviewed the patients who underwent VSD for treatment of hand injuries. Inclusion criteria for the study were: (1) traumatic soft tissue defects of the hand and wrist, accompanied by different degrees of injury and exposure of bone, tendon, or blood vessel; (2) the wound surface of hand and wrist was seriously contaminated and direct wound closure was not possible; and (3) the soft tissues of hand and wrist were seriously lacerated or avulsed, and showed necrosis or acute infection...
March 5, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28272123/reconstruction-of-moderate-sized-hand-defects-using-a-superficial-lateral-sural-artery-perforator-flap
#11
Xiao-Qing He, Yue-Liang Zhu, Jia-Zhang Duan, Xi Yang, Fanzhe Feng, Yong-Qing Xu
BACKGROUND: The skin on the lower leg has abundant perforators and, thus, is an excellent donor site for transplant tissue flaps. However, due to vascular variations and body positions, tissue flaps at the posterolateral proximal portion of the lower leg are rarely used for transplantation. This study reports our experience with the use of superficial lateral sural artery perforator (SLSAP) flaps in the repair of moderate-sized hand wounds. METHODS: From March 2012 to April 2015, the hand wounds of 15 patients were planned for repair using a superficial sural artery perforator flap...
April 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28261220/dual-role-of-natural-killer-cells-on-graft-rejection-and-control-of-cytomegalovirus-infection-in-renal-transplantation
#12
REVIEW
Miguel López-Botet, Carlos Vilches, Dolores Redondo-Pachón, Aura Muntasell, Aldi Pupuleku, José Yélamos, Julio Pascual, Marta Crespo
Allograft rejection constitutes a major complication of solid organ transplantation requiring prophylactic/therapeutic immunosuppression, which increases susceptibility of patients to infections and cancer. Beyond the pivotal role of alloantigen-specific T cells and antibodies in the pathogenesis of rejection, natural killer (NK) cells may display alloreactive potential in case of mismatch between recipient inhibitory killer-cell immunoglobulin-like receptors (KIRs) and graft HLA class I molecules. Several studies have addressed the impact of this variable in kidney transplant with conflicting conclusions; yet, increasing evidence supports that alloantibody-mediated NK cell activation via FcγRIIIA (CD16) contributes to rejection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28260479/peripheral-muscle-strength-indicates-respiratory-function-testing-in-renal-recipients
#13
Gaye Ulubay, Saliha Uyanik, Balam Er Dedekarginoglu, Irem Serifoglu, Elif Kupeli, Serife Savas Bozbas, Siren Sezer, Mehmet Haberal
OBJECTIVES: Muscle wasting occurs in renal recipients due to decreased physical performance, and decreased respiratory muscle strength may occur due to changes in structure and function. Data are scarce regarding the roles of sarcopenia and nutritional status on respiratory muscle function in these patients. Here, we evaluated interactions among peripheral muscle strength, sarcopenia, nutritional parameters, and respiratory muscle function in renal transplant recipients. MATERIALS AND METHODS: Ninety-nine patients were prospectively enrolled between September and April 2016 at Baskent University...
February 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28251730/epidemiological-surveillance-of-multidrug-resistant-gram-negative-bacteria-in-a-solid-organ-transplantation-department
#14
Anastasia Geladari, Theodoros Karampatakis, Charalampos Antachopoulos, Elias Iosifidis, Olga Tsiatsiou, Lida Politi, Aggeliki Karyoti, Vasilios Papanikolaou, Athanassios Tsakris, Emmanuel Roilides
BACKGROUND: We assessed the impact of intensified infection control measures (ICM) on colonization and infection caused by carbapenem-resistant (CR) Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii in a Solid Organ Transplantation (SOT) Department. METHODS: A quasi-experimental methodology was followed. The study was divided in 3 periods: pre-intervention, intervention with implementation of an ICM bundle including active surveillance program (ASP) and gradually enhanced measures, and post-ASP without ASP...
March 2, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28250859/-18-f-fdg-pet-ct-for-the-diagnosis-of-malignant-and-infectious-complications-after-solid-organ-transplantation
#15
Nastassja Muller, Romain Kessler, Sophie Caillard, Eric Epailly, Fabrice Hubelé, Céline Heimburger, Izzie-Jacques Namer, Raoul Herbrecht, Cyrille Blondet, Alessio Imperiale
PURPOSE: Infection and malignancy represent two common complications after solid organ transplantation, which are often characterized by poorly specific clinical symptomatology. Herein, we have evaluated the role of (18)F-fluoro-2-deoxy-D-glucose (FDG) positron emission tomography/computed tomography (PET/CT) in this clinical setting. METHODS: Fifty-eight consecutive patients who underwent FDG PET/CT after kidney, lung or heart transplantation were included in this retrospective analysis...
March 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28250667/adult-to-adult-living-donor-liver-transplantation-operative-techniques-to-optimize-the-recipient-s-outcome
#16
REVIEW
Peng Soon Koh, See Ching Chan
Adult-to-adult living donor liver transplantation (LDLT) is widely accepted today with good outcomes and safety reported worldwide for both donor and recipient. Nonetheless, it remained a highly demanding technical and complex surgery if undertaken. The last two decades have seen an increased in adult-to-adult LDLT following our first report of right lobe LDLT in overcoming graft size limitation in adults. In this article, we discussed the operative techniques and challenges of adult right lobe LDLT incorporating the middle hepatic vein, which is practiced in our center for the recipient operation...
January 2017: Journal of Natural Science, Biology, and Medicine
https://www.readbyqxmd.com/read/28249789/hand-transplantation-evolution-of-a%C3%A2-personal-outlook
#17
REVIEW
W P Andrew Lee
The field of vascularized composite allotransplantation-combining advances in reconstructive surgery, transplantation, and immunology-offers great promise for patients with heretofore unsolvable problems. In the last 30 years, hand transplantation has progressed through the phases of being a research subject, a controversial clinical procedure, a more widely accepted and expanding field, and now a promising endeavor undergoing refined indications. Although many lessons have been learned, few procedures in the author's experience have been as life-transformative in restoring the body image, motor and sensory functions, activities of daily living, and personal autonomy as successful hand transplantation...
February 26, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28239866/influence-of-vasomodulators-and-tumor-transplantation-on-the-disposition-of-5-fluorouracil-after-application-to-the-liver-surface-in-rats
#18
Yukinobu Kodama, Miyuki Horishita, Ayako Tokunaga, Hirotaka Miyamoto, Shintaro Fumoto, Hitoshi Sasaki, Junzo Nakamura, Koyo Nishida
This study investigated the effect of epinephrine (a vasoconstrictor) and hydralazine (a vasodilator) on the hepatic disposition of 5-fluorouracil (5-FU) after application to the liver surface in rats. Normal livers were compared with a Walker 256 carcinoma cell tumor model. A cylindrical diffusion cell was attached to the liver surface. 5-FU was added into the diffusion cell in combination with vasomodulators or after pretreatment with epinephrine. After selected treatment times, 5-FU concentrations were assayed at three sites in the excised livers...
February 27, 2017: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/28237314/preventive-motor-training-but-not-progenitor-grafting-ameliorates-cerebellar-ataxia-and-deregulated-autophagy-in-tambaleante-mice
#19
Elisa Fucà, Michela Guglielmotto, Enrica Boda, Ferdinando Rossi, Ketty Leto, Annalisa Buffo
Treatment options for degenerative cerebellar ataxias are currently very limited. A large fraction of such disorders is represented by hereditary cerebellar ataxias, whose familiar transmission facilitates an early diagnosis and may possibly allow to start preventive treatments before the onset of the neurodegeneration and appearance of first symptoms. In spite of the heterogeneous aetiology, histological alterations of ataxias often include the primary degeneration of the cerebellar cortex caused by Purkinje cells (PCs) loss...
February 24, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28224299/clinical-impact-of-sarcopenia-and-relevance-of-nutritional-intake-in-patients-before-and-after-allogeneic-hematopoietic-stem-cell-transplantation
#20
Shouichi Tanaka, Osamu Imataki, Atsuo Kitaoka, Shuji Fujioka, Etsuyo Hanabusa, Yumiko Ohbayashi, Makiko Uemura, Nobuo Arima, Tetsuji Yamamoto
PURPOSE: We conducted a retrospective study to evaluate the effect of rehabilitation on minimizing sarcopenia during hematopoietic stem cell transplantation (HSCT) therapy. METHODS: We developed a protocol to test for retention of physical function during HSCT. Muscle strength, muscle circumference, and muscle function before and after HSCT were measured. Consecutive patients with hematological malignancies who underwent HSCT treatment were recruited in this research...
February 21, 2017: Journal of Cancer Research and Clinical Oncology
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