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https://www.readbyqxmd.com/read/29346763/derepression-of-the-iroquois-homeodomain-transcription-factor-gene-irx3-confers-differentiation-block-in-acute-leukemia
#1
Tim D D Somerville, Fabrizio Simeoni, John A Chadwick, Emma L Williams, Gary J Spencer, Katalin Boros, Christopher Wirth, Eleni Tholouli, Richard J Byers, Tim C P Somervaille
The Iroquois homeodomain transcription factor gene IRX3 is expressed in the developing nervous system, limb buds, and heart, and transcript levels specify obesity risk in humans. We now report a functional role for IRX3 in human acute leukemia. Although transcript levels are very low in normal human bone marrow cells, high IRX3 expression is found in ∼30% of patients with acute myeloid leukemia (AML), ∼50% with T-acute lymphoblastic leukemia, and ∼20% with B-acute lymphoblastic leukemia, frequently in association with high-level HOXA gene expression...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29343890/first-two-bilateral-hand-transplantations-in-india-part-2-technical-details
#2
Mohit Sharma, Subramania Iyer, P Kishore, Jimmy Mathew, Raghuveer Reddy, Janarthanan Ramu, Sundeep Vijayaraghavan, Abhijeet Wakure, S M Mali Chetan, Visakh Varma, Ashish Chaudhari, Swapnil Dhake, Akshay Omkumar, Jerry Paul, Sunil Rajan, Ayyappan Nair, Druvan Shaji
Introduction: This article deals with two patients who underwent bilateral hand transplantation following amputation of both upper limbs at the distal third of the foream. Materials and Methods: The first patient had a history of loss of hands in a train accident , with possiblity of a run over element during the injury. The second patient lost his both hands in a mine blast. The preoperative work up included detailed clinical and psychological evaluation. The donor retrieval was similar in both the cases and the donors were housed in our own instittution...
May 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/29327586/composite-hydrogel-modified-by-igf-1c-domain-improves-stem-cell-therapy-for-limb-ischemia
#3
Xiaomin Wang, Jimin Zhang, Weilong Cui, Yuan Fang, Li Li, Shenglu Ji, Duo Mao, Tingyu Ke, Xin Yao, Dan Ding, Guowei Feng, Deling Kong
Stem cell treatment for critical limb ischemia yields a limited therapeutic effect due to cell loss and dysfunction caused by local ischemic environment. Biomimetic scaffolds emerge as ideal cell delivery vehicles for regulating cell fate via mimicking the components of stem cell niche. Herein, we prepared a bioactive hydrogel by mixing chitosan and hyaluronic acid that is immobilized with C domain peptide of IGF-1 (IGF-1C), and examined whether this hydrogel could augment stem cell survival and therapeutic potential...
January 12, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29305451/a-pilot-randomized-trial-of-meniscal-allograft-transplantation-versus-personalized-physiotherapy-for-patients-with-a-symptomatic-meniscal-deficient-knee-compartment
#4
N A Smith, N Parsons, D Wright, C Hutchinson, A Metcalfe, P Thompson, M L Costa, T Spalding
AIMS: Meniscal allograft transplantation is undertaken to improve pain and function in patients with a symptomatic meniscal deficient knee compartment. While case series have shown improvements in patient reported outcome measures (PROMs), its efficacy has not been rigorously evaluated. This study aimed to compare PROMs in patients having meniscal transplantation with those having personalized physiotherapy at 12 months. PATIENTS AND METHODS: A single-centre assessor-blinded, comprehensive cohort study, incorporating a pilot randomized controlled trial (RCT) was performed on patients with a symptomatic compartment of the knee in which a (sub)total meniscectomy had previously been performed...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29298238/desensitization-and-prevention-of-antibody-mediated-rejection-in-vascularized-composite-allotransplantation-by-syngeneic-hematopoietic-stem-cell-transplantation
#5
Howard D Wang, Samuel A J Fidder, Devin T Miller, Georg J Furtmüller, Ali Reza Ahmadi, Felix Nägele, Joseph Lopez, Amy Quan, Joshua Budihardjo, Denver M Lough, Burcu Akpinarli, Joanna Etra, Dalibor Vasilic, Giorgio Raimondi, W P Andrew Lee, Robert A Montgomery, Zhaoli Sun, Gerald Brandacher
BACKGROUND: Candidates for vascularized composite allotransplantation (VCA) are frequently sensitized, putting them at risk for antibody-mediated rejection (AMR). Current desensitization strategies are imperfect and require a living-donor setting. Here we investigated the impact of sensitization on and the efficacy of a desensitization protocol utilizing syngeneic hematopoietic stem cell transplantation (HSCT) to prevent AMR in VCA. METHODS: Skin transplants from Dark Agouti (DA) to Lewis rats were performed for sensitization...
January 2, 2018: Transplantation
https://www.readbyqxmd.com/read/29288558/aggressive-infrainguinal-revascularization-in-renal-transplant-patients-is-justifiable
#6
Rebecca Craig-Schapiro, Besma Nejim, Isibor Arhuidese, Mahmoud B Malas
While studies demonstrate poor outcomes of lower extremity revascularization in end-stage renal disease patients, little is known about results in renal transplant patients. We analyzed 2-year primary patency and limb salvage outcomes and associated risk factors of transplant (N=202) and non-transplant patients (N=25,274) in the Vascular Quality Initiative database undergoing infrainguinal bypass from 2003-2016. Multivariable Cox regression analysis and coarsened exact matching with many-to-one were employed...
December 29, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29284454/the-effect-of-low-intensity-shockwave-treatment-li-swt-on-human-myoblasts-and-mouse-skeletal-muscle
#7
Lise K Hansen, Henrik D Schrøder, Lars Lund, Karthikeyan Rajagopal, Vrisha Maduri, Jeeva Sellathurai
BACKGROUND: Transplanting myogenic cells and scaffolds for tissue engineering in skeletal muscle have shown inconsistent results. One of the limiting factors is neovascularization at the recipient site. Low intensity shockwave therapy (Li-SWT) has been linked to increased tissue regeneration and vascularization, both integral to survival and integration of transplanted cells. This study was conducted to demonstrate the response of myoblasts and skeletal muscle to Li-SWT. METHOD: Primary isolated human myoblasts and explants were treated with low intensity shockwaves and subsequently cell viability, proliferation and differentiation were tested...
December 29, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29280609/new-perspectives-in-biofilm-eradication
#8
Heidi Wolfmeier, Daniel Pletzer, Sarah C Mansour, Robert E W Hancock
Microbial biofilms, which are elaborate and highly resistant microbial aggregates formed on surfaces or medical devices, cause two-thirds of infections and constitute a serious threat to public health. Immunocompromised patients, individuals who require implanted devices, artificial limbs, organ transplants, or external life support and those with major injuries or burns, are particularly prone to become infected. Antibiotics, the mainstay treatments of bacterial infections, have often proven ineffective in the fight against microbes when growing as biofilms, and to date, no antibiotic has been developed for use against biofilm infections...
December 27, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29275614/-wound-repair-and-functional-reconstruction-of-high-voltage-electrical-burns-in-wrists
#9
Y M Shen, C X Ma, F J Qin, C Zhang, C Wang, X H Hu
Objective: To explore the methods and effects of wound repair and functional reconstruction of high-voltage electrical burns in wrists. Methods: From January 2009 to June 2016, 71 patients with high-voltage electrical burns in wrists were hospitalized, with 118 wrist wounds including 21 of type Ⅰ, 69 of type Ⅱ, 9 of type Ⅲ, and 19 of type Ⅳ. According to the wrist injuries, different surgical operations were performed. Forearm amputation was conducted in 20 wrists with necrosis in the distal end. On the basis of fasciotomy for decompression, early debridement was performed on the other 98 wrist wounds...
December 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29259720/cell-transfer-technology-for-tissue-engineering
#10
REVIEW
Keiko Akazawa, Kengo Iwasaki, Mizuki Nagata, Naoki Yokoyama, Hirohito Ayame, Kazumasa Yamaki, Yuichi Tanaka, Izumi Honda, Chikako Morioka, Tsuyoshi Kimura, Motohiro Komaki, Akio Kishida, Yuichi Izumi, Ikuo Morita
We recently developed novel cell transplantation method "cell transfer technology" utilizing photolithography. Using this method, we can transfer ex vivo expanded cells onto scaffold material in desired patterns, like printing of pictures and letters on a paper. We have investigated the possibility of this novel method for cell-based therapy using several disease models. We first transferred endothelial cells in capillary-like patterns on amnion. The transplantation of the endothelial cell-transferred amnion enhanced the reperfusion in mouse ischemic limb model...
2017: Inflammation and Regeneration
https://www.readbyqxmd.com/read/29251585/complications-and-their-prevention-in-experimental-renal-transplantation-in-rats
#11
Badri Man Shrestha, John Haylor
OBJECTIVES: Experimental rat models of renal transplant have played a pivotal role in renal transplant research. Both intraoperative and postoperative complications during donor nephrectomy and implantation in the recipient can be associated with significant morbidity and mortality. The aim of this paper is to discuss the incidence, pathophysiology, and prevention of complications that occurred in the process of establishment of a rat model of chronic allograft injury at our institution...
December 18, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29242993/promotion-of-neuronal-regeneration-by-using-self-polymerized-dendritic-polypeptide-scaffold-for-spinal-cord-tissue-engineering
#12
Jun Ming Wan, Liang le Liu, Jian Fang Zhang, Jian Wei Lu, Qi Li
Tissue engineering technology is applicable for study of nerve regeneration after spinal cord injury. Many natural and artificial scaffold are not applicable because of poor mechanical properties and cell compatibility. Polypeptides with fine three-dimensional structure and cell compatibility and are widely used in tissue engineering research. The purpose of this study was to verify the neuronal differentiation of neural stem cells by using self-polymerize dendritic polypeptide for spinal cord tissue engineering...
December 14, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29230194/acute-flaccid-paralysis-by-enterovirus-d68-infection-first-italian-description-in-adult-patient-and-role-of-electrophysiology
#13
Marco Ceccanti, Emilia Sbardella, Federica Letteri, Manuela De Michele, Anne Falcou, Federica Romanzi, Emanuela Onesti, Maurizio Inghilleri
A Peruvian woman was admitted to the Emergency Department, due to an acute flaccid paralysis (AFP) of the upper limbs that progressively involved also lower limbs and respiratory muscles. She previously suffered from non-Hodgkin's lymphoma and had to undergo hematopoietic stem cell transplantation. A magnetic resonance imaging showed a T2 hyperintensity in the anterior and central region of the cervical segment with an elective involvement of gray matter. This finding, combined with other clinical, laboratory, and electrophysiological data, led to a diagnosis of AFP...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29226477/cell-therapy-for-critical-limb-ischemia-an-integrated-review-of-pre-clinical-and-clinical-studies
#14
REVIEW
Mohammad Qadura, Daniella C Terenzi, Subodh Verma, Mohammed Al-Omran, David A Hess
Critical limb ischemia (CLI), the most severe form of peripheral artery disease, is characterized by pain at rest and non-healing ulcers in the lower extremities. For patients with CLI, where the extent of atherosclerotic artery occlusion is too severe for surgical bypass or percutaneous interventions, limb amputation remains the only treatment option. Thus, cell-based therapy to restore perfusion and promote wound healing in patients with CLI is under intense investigation. Despite promising preclinical studies in animal models, transplantation of bone marrow (BM) derived cell populations in patients with CLI has shown limited benefit preventing limb amputation...
December 11, 2017: Stem Cells
https://www.readbyqxmd.com/read/29221684/ex-vivo-flush-of-the-limb-allograft-reduces-inflammatory-burden-prior-to-transplantation
#15
Kavit R Amin, Alexandra L Ball, Chandanpreet Chhina, Rebecca J Edge, John P Stone, William R Critchley, Jason K Wong, James E Fildes
BACKGROUND: Passenger leucocytes and inflammatory debris transferred from the donor limb to the recipient can induce allorecognition, which activates the host immune response. This is the first study to evaluate whether the transfer of this inflammatory burden can be reduced via post-preservation flush prior to revascularisation, and whether this is influenced by ischaemia. METHODS: Bilateral forelimbs from the same pig were procured and infused with preservation flush and stored on ice...
November 24, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29198686/orthotopic-kidney-transplantation-in-an-elderly-patient-with-various-severe-comorbid-conditions-a-case-report
#16
H Sasaki, R Nakazawa, T Iwata, W Usuba, H Yoshie, E Fujimoto, H Metoki, Y Katsuoka, K Aida, H Kudo, K Koitabashi, M Yazawa, Y Shibagaki, Y Marui, T Chikaraishi
In recent years, the frequency of high-risk kidney transplantations has increased. We report a case in which a 72-year-old man with various severe comorbidities (prostate cancer, diabetes mellitus, complete atrioventricular block, coronary artery stenosis, severe stenosis of the popliteal arteries, and severe calcification of the iliac arteries) who received an orthotopic kidney transplantation. To prevent the occurrence of acute limb ischemia due to the steal phenomenon (caused by the kidney graft), we decided that a heterotopic kidney transplantation involving the iliac arteries was not an appropriate option...
December 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29172009/epo-releasing-neural-precursor-cells-promote-axonal-regeneration-and-recovery-of-function-in-spinal-cord-traumatic-injury
#17
S Carelli, T Giallongo, Z Gombalova, D Merli, A M Di Giulio, A Gorio
BACKGROUND: Spinal cord injury (SCI) is a debilitating condition characterized by a complex of neurological dysfunctions ranging from loss of sensation to partial or complete limb paralysis. Recently, we reported that intravenous administration of neural precursors physiologically releasing erythropoietin (namely Er-NPCs) enhances functional recovery in animals following contusive spinal cord injury through the counteraction of secondary degeneration. Er-NPCs reached and accumulated at the lesion edges, where they survived throughout the prolonged period of observation and differentiated mostly into cholinergic neuron-like cells...
2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/29158060/meta-analysis-of-the-outcome-after-postcardiotomy-venoarterial-extracorporeal-membrane-oxygenation-in-adult-patients
#18
Fausto Biancari, Andrea Perrotti, Magnus Dalén, Mariapia Guerrieri, Antonio Fiore, Daniel Reichart, Angelo M Dell'Aquila, Giuseppe Gatti, Tero Ala-Kokko, Eeva-Maija Kinnunen, Tuomas Tauriainen, Sidney Chocron, Juhani K E Airaksinen, Vito G Ruggieri, Debora Brascia
OBJECTIVE: This study was planned to pool existing data on outcome and to evaluate the efficacy of postcardiotomy venoarterial extracorporeal membrane oxygenation (VA-ECMO) in adult patients. DESIGN: Systematic review of the literature and meta-analysis. SETTING: Multi-institutional study. PARTICIPANTS: Adult patients with acute heart failure immediately after cardiac surgery. INTERVENTIONS: VA-ECMO after cardiac surgery...
September 1, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29131389/a-new-porcine-vascularized-tibial-bone-allotransplantation-model-anatomy-and-surgical-technique
#19
Dimitra Kotsougiani, Joost I Willems, Alexander Y Shin, Patricia F Friedrich, Caroline A Hundepool, Allen T Bishop
INTRODUCTION: Vascularized bone allotransplantation may provide new options for reconstruction of segmental defects if problems of long-term immune modulation can be solved. The current literature lacks an orthotopic large animal model, limited to bone and without the confounding effects of other tissue types, permitting a multifaceted evaluation before new methods are used clinically. The purpose of this study was to develop a large animal model for vascularized bone allotransplantation...
November 13, 2017: Microsurgery
https://www.readbyqxmd.com/read/29125102/role-of-methylprednisolone-in-treatment-of-spinal-cord-injured-with-bone-marrow-mesenchymal-stem-cells-transplantation-in-rats-and-its-effect-on-the-expressions-of-tumor-necrosis-factor-%C3%AE-and-interleukin-1%C3%AE
#20
Xin-Ming Yang, Yao-Yu Cheng, Zhen-Liang Zhang, Cong Kang
Objective To investigate the role of methylprednisolone (MP) in treatment of spinal cord injured (SCI) with bone marrow mesenchymal stem cells (BMSCs) transplantation in rats and its effect on the expressions of tumor necrosis factor-α(TNF-α) and interleukin-1β(IL-1β) at the local tissues.Methods Forty male Sprague-Dawley(SD) rats were used to establish the models of SCI according to the modified Allen's contusion method and then divided into four groups (n=10 in each group) by using random numbers table:MP group,BMSCs group,BMSCs+MP group,and control group...
October 30, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
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