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https://www.readbyqxmd.com/read/28922286/nocardia-infections-in-solid-organ-and-hematopoietic-stem-cell-transplant-recipients
#1
Julien Coussement, David Lebeaux, Claire Rouzaud, Olivier Lortholary
PURPOSE OF REVIEW: Nocardia spp. is a gram-positive bacteria that may cause infections in humans. Nocardiosis has been described since the early years of transplantation. This review aims to provide an overview of present knowledge regarding posttransplant nocardiosis, with a focus on recent findings. RECENT FINDINGS: Nocardiosis is not rare among transplant recipients, especially after thoracic transplantation and/or in case of intense immunosuppressive regimen or use of tacrolimus...
September 15, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28918471/extracorporeal-membrane-oxygenation-versus-cardiopulmonary-bypass-during-lung-transplantation-a-meta-analysis
#2
Dimitrios E Magouliotis, Vasiliki S Tasiopoulou, Alexis A Svokos, Konstantina A Svokos, Dimitris Zacharoulis
BACKGROUND: We reviewed the available literature on patients undergoing lung transplantation supported by cardiopulmonary bypass (CPB) or extracorporeal membrane oxygenation (ECMO). METHODS: A systematic literature search was performed in three databases, in accordance with the PRISMA guidelines. Meta-analyses were used to compare the outcomes of ECMO and CPB procedures. RESULTS: Seven observational studies met the inclusion criteria incorporating 785 patients...
September 16, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28917997/lung-transplantation-for-scleroderma-strength-in-numbers
#3
EDITORIAL
Allan C Gelber
No abstract text is available yet for this article.
September 13, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28917611/end-of-life-practice-patterns-at-u-s-adult-cystic-fibrosis-care-centers-a-national-retrospective-chart-review
#4
Elaine Chen, Karen Homa, Jessica Goggin, Kathryn A Sabadosa, Sarah Hempstead, Bruce C Marshall, Albert Faro, Elisabeth P Dellon
BACKGROUND: There are many challenges to providing end-of-life care (EOLC) to people with cystic fibrosis (CF). METHODS: Chart abstraction was used to examine EOLC in adults with CF who died between 2011 and 2013. RESULTS: We reviewed 248 deaths from 71 CF care centers. Median age at death was 29years (range 18-73). While median FEV1 was in the severe lung disease category (FEV1<40%), 38% had mild or moderate lung disease in the year preceding death...
September 13, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28916766/stimulatory-secretions-of-airway-epithelial-cells-accelerate-early-repair-of-tracheal-epithelium
#5
Egi Kardia, Rafeezul Mohamed, Badrul Hisham Yahaya
Airway stem/progenitor epithelial cells (AECs) are notable for their differentiation capacities in response to lung injury. Our previous finding highlighted the regenerative capacity of AECs following transplantation in repairing tracheal injury and reducing the severity of alveolar damage associated acute lung injury in a rabbit model. The goal of this study is to further investigate the potential of AECs to re-populate the tracheal epithelium and to study their stimulatory effect on inhibiting pro-inflammatory cytokines, epithelial cell migration and proliferation, and epithelial-to-mesenchymal transition (EMT) process following tracheal injury...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28916482/disposition-of-treosulfan-and-its-active-monoepoxide-in-a-bone-marrow-liver-lungs-brain-and-muscle-studies-in-a-rat-model-with-clinical-relevance
#6
Michał Romański, Anna Kasprzyk, Mateusz Walczak, Agnieszka Ziółkowska, Franciszek Główka
For the recent years, the application of treosulfan (TREO)-based conditioning prior to hematopoietic stem cell transplantation (HSCT) has been increasing as an alternative to busulfan-based therapy, especially for patients presenting high risk of developing hepato-, pulmo-, and neurotoxicity. So far, the penetration of TREO and its epoxy-derivatives into central nervous system and aqueous humor of the eye has been investigated. However, lacking knowledge on the compounds distribution into the other key tissues precludes comprehensive understanding and assessment of TREO clinical efficacy and toxicity...
September 12, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28914637/signal-transducer-and-activator-of-transcription-gain-of-function-primary-immunodeficiency-immunodysregulation-disorders
#7
Filippo Consonni, Laura Dotta, Francesca Todaro, Donatella Vairo, Raffaele Badolato
PURPOSE OF REVIEW: To describe primary immunodeficiencies caused by gain-of-function (GOF) mutations of signal transducer and activator of transcription (STAT) genes, a group of genetically determined disorders characterized by susceptibility to infections and, in many cases, autoimmune manifestations. RECENT FINDINGS: GOF mutations affecting STAT1 result in increased STAT tyrosine phosphorylation and secondarily increased response to STAT1-signaling cytokines, such as interferons...
September 13, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28912986/transmission-of-donor-derived-trypanosoma-cruzi-and-subsequent-development-of-chagas-disease-in-a-lung-transplant-recipient
#8
A B Corey, D Sonetti, J D Maloney, S P Montgomery, B L Rademacher, L J Taylor, J A Smith, R Striker
Donor infection status should be considered when accepting an organ for transplant. Here we present a case of Chagas disease developing after a lung transplant where the donor was known to be Trypanosoma cruzi antibody positive. The recipient developed acute Trypanosoma cruzi infection with reactivation after treatment. Chagas disease-positive donors are likely to be encountered in the United States; donor targeted screening is needed to guide decisions regarding organ transplant and posttransplant monitoring...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28912884/towards-translational-immunopet-mr-imaging-of-invasive-pulmonary-aspergillosis-the-humanised-monoclonal-antibody-jf5-detects-aspergillus-lung-infections-in-vivo
#9
Genna Davies, Anna-Maria Rolle, Andreas Maurer, Philipp R Spycher, Claudia Schillinger, Djamschid Solouk-Saran, Mike Hasenberg, Juliane Weski, Jesper Fonslet, Adrien Dubois, Frederic Boschetti, Franck Denat, Matthias Gunzer, Martin Eichner, Lauren S Ryder, Mikael Jensen, Roger Schibli, Bernd J Pichler, Stefan Wiehr, Christopher R Thornton
Invasive pulmonary aspergillosis (IPA) is a life-threatening lung disease of hematological malignancy or bone marrow transplant patients caused by the ubiquitous environmental fungus Aspergillus fumigatus. Current diagnostic tests for the disease lack sensitivity as well as specificity, and culture of the fungus from invasive lung biopsy, considered the gold standard for IPA detection, is slow and often not possible in critically ill patients. In a previous study, we reported the development of a novel non-invasive procedure for IPA diagnosis based on antibody-guided positron emission tomography and magnetic resonance imaging (immunoPET/MRI) using a [(64)Cu]DOTA-labeled mouse monoclonal antibody (mAb), mJF5, specific to Aspergillus...
2017: Theranostics
https://www.readbyqxmd.com/read/28912844/triptolide-inhibits-cd4-memory-t-cell-mediated-acute-rejection-and-prolongs-cardiac-allograft-survival-in-mice
#10
Shuiwei Qiu, Dingliang Lv
There have been numerous investigations into the immunosuppressive effects of triptolide; however, its inhibitory effects on memory T cells remain to be elucidated. Using a cluster of differentiation (CD)4(+) memory T-cell transfer model, the aim of the present study was to determine the inhibitory effects of triptolide on CD4(+) memory T cell-mediated acute rejection and to determine the potential underlying mechanisms. At 4 weeks after skin transplantation, mouse cervical heart transplantation was performed following the transfer of CD4(+) memory T cells...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28912729/multiplicity-of-mathematical-modeling-strategies-to-search-for-molecular-and-cellular-insights-into-bacteria-lung-infection
#11
REVIEW
Martina Cantone, Guido Santos, Pia Wentker, Xin Lai, Julio Vera
Even today two bacterial lung infections, namely pneumonia and tuberculosis, are among the 10 most frequent causes of death worldwide. These infections still lack effective treatments in many developing countries and in immunocompromised populations like infants, elderly people and transplanted patients. The interaction between bacteria and the host is a complex system of interlinked intercellular and the intracellular processes, enriched in regulatory structures like positive and negative feedback loops. Severe pathological condition can emerge when the immune system of the host fails to neutralize the infection...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28910960/-effects-of-human-mesenchymal-stem-cells-on-airway-inflammation-in-allergic-asthma-mice-and-the-underlying-mechanism
#12
N N Ren, H J Chen, Q L Chen, J Eileen, Y G An, Yiguang Lin
Objectives: To investigate the effects of human umbilical cord mesenchymal stem cells (hUC-MSCs) on airway inflammation in an ovalbumin (OVA) induced asthma mouse model and the underlying mechanism. Methods: Twenty-four BALB/c mice were randomly divided into four equal groups: normal control group, OVA-induced asthmatic model group, hUC-MSCs treated group (50 μl of hUC-MSCs was transplanted into the trachea of asthmatic mice ) and hUC-MSCs control group (50 μl of hUC-MSCs was transplanted into the trachea of control mice)...
September 12, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28910912/-percutaneous-catheterization-for-extracorporeal-membrane-oxygenation-a-retrospective-case-series
#13
X Y Li, H Y He, X Tang, R Wang, C Y Zhang, S Q Wang, B Sun, Z H Tong
Objective: To review the experience of percutaneous catheterization for extracorporeal membrane oxygenation (ECMO) by respiratory intensivists at a single institution. Methods: A retrospective review of 87 patients undergoing percutaneous catheterization for ECMO in Department of Respiratory and Critical Care Medicine of Beijing Chaoyang Hospital from November 2009 to January 2017. Subject demographics, type of support, cannulation configuration, types of cannulas, use of imaging modalities, and complications were recorded and summarized...
September 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28910513/quality-of-life-outcomes-following-pediatric-lung-transplantation
#14
Tanya Lazor, Hartmut Grasemann, Melinda Solomon, Samantha J Anthony
PURPOSE: Compared to other solid organs, survival after lung transplantation (LTx) is still poor. Discussions on survival benefits following LTx in children, however, have largely concentrated on medical outcome data. Little research describes quality of life (QoL) of pediatric LTx recipients, which is partly due to the small number of pediatric LTxs performed. Only two centers worldwide performed >10 pediatric LTxs in 2013, making data on QoL in this population difficult to obtain...
September 14, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28906550/efficacy-and-safety-of-autologous-haematopoietic-stem-cell-transplantation-in-systemic-sclerosis-a-systematic-review-of-literature
#15
A Eyraud, L Scouppe, T Barnetche, E Forcade, E Lazaro, P Duffau, C Richez, J Seneschal, M-E Truchetet
We aimed at assessing the efficacy of autologous haematopoietic stem cell transplantation (HSCT) for skin sclerosis and lung function in systemic sclerosis (SSc). We performed a systematic literature review in the Pubmed and Scopus databases from the earliest records to March 2016. We assessed quality using the Cochrane tool for randomized studies, Newcastle-Ottawa scale for controlled-cohort studies and an 18-item quality appraisal checklist for case series. The primary outcome was the improvement of skin thickening using the modified Rodnan Skin Score (mRSS)...
September 14, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28906321/variceal-hemorrhage-and-adverse-liver-outcomes-in-patients-with-cystic-fibrosis-cirrhosis
#16
Wen Ye, Michael R Narkewicz, Daniel H Leung, Wikrom Karnsakul, Karen F Murray, Estella M Alonso, John C Magee, Sarah Jane Schwarzenberg, Alexander Weymann, Jean P Molleston
OBJECTIVES: Cirrhosis occurs in 5-10% of CF (cystic fibrosis) patients, often accompanied by portal hypertension. We analyzed three adverse liver outcomes, variceal bleeding (VB), liver transplant (LT), and liver death (LD), and risk factors for these in CF Foundation Patient Registry (CFFPR) subjects with reported cirrhosis. METHODS: We determined 10-year incidence rates for VB, LT, LD, and all-cause mortality (ACM), and examined risk factors using competing risk models and Cox-proportional hazard regression...
September 12, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28905528/humidifier-disinfectant-associated-lung-injury-six-years-after-the-tragic-event
#17
REVIEW
Won Young Kim, Sang Bum Hong
In 2011, a cluster of peripartum patients were admitted to the intensive care unit of a tertiary hospital in Seoul with signs and symptoms of severe respiratory distress of unknown etiology. Subsequent epidemiological and animal studies suggested that humidifier disinfectant (HD) might represent the source of this pathology. Epidemiological studies, animal studies, and dose-response analysis demonstrated a strong association between HD use and lung injuries. The diagnostic criteria for HD-associated lung injury (HDALI) was defined on the basis of the clinical, pathological, and radiological attributes of the patients...
September 1, 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28905517/the-prognostic-significance-of-tricuspid-valve-regurgitation-in-pulmonary-arterial-hypertension
#18
Libo Chen, Carolyn M Larsen, Rachel J Le, Heidi M Connolly, Sorin V Pislaru, Joseph G Murphy, Michael D McGoon, Robert P Frantz, Garvan C Kane
INTRODUCTION: Tricuspid valve regurgitation (TR) is a frequent finding in patients with pulmonary arterial hypertension (PAH). However, its prognostic significance and relation to PAH, while suspected, are poorly understood. We assessed 727 consecutive patients with newly diagnosed PAH who underwent transthoracic echocardiographic evaluation of tricuspid valve function. OBJECTIVES: The study objective was to determine the association of TR presence and severity with patient characteristics, pulmonary artery hemodynamics, and outcome...
September 14, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28905450/nrf2-transfection-enhances-the-efficacy-of-human-amniotic-mesenchymal-stem-cells-to-repair-lung-injury-induced-by-lipopolysaccharide
#19
Shouqin Zhang, Wei Jiang, Lijie Ma, Yuhao Liu, Xiangyu Zhang, Sheng Wang
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are clinical emergencies with no effective pharmaceutical treatment. This study aims to determine the protective effects of Nrf2-transfected human amniotic mesenchymal stem cells (hAMSCs) against lipopolysaccharide (LPS)-induced lung injury in mice. hAMSCs stably transfected with Nrf2 or green fluorescent protein control were transplanted into male C57BL/6 mice via the tail vein 4 h after intratracheal instillation of LPS. At 3, 7 and 14 days after cell transplantation, total lung injury score (the Smith score) was determined by hematoxylin and eosin staining...
September 14, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28904861/a-modified-graft-versus-host-induced-model-for-systemic-sclerosis-with-pulmonary-fibrosis-in-rag2-deficient-mice
#20
Xue Yang, Chi Liu, Masayuki Fujino, Ji Yang, Xiao-Kang Li, Hejian Zou
Systemic sclerosis (SSc) is a connective tissue disease that results in fibrosis in multiple organs. Various animal models for this disease have been developed, both genetic and induced. One of the induced models, sclerodermatous graft-versus-host disease (scl-GvHD), exhibits the main characteristics of SSc, but involves lethal γ-irradiation of recipients. We sought to develop a modified scl-GvHD model. Spleen cells from B10.D2 donor mice were transplanted into immunodeficient Rag-2 recipients on the BALB/c genetic background...
September 2017: FEBS Open Bio
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