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https://www.readbyqxmd.com/read/28434548/ex%C3%A2-vivo-lung-perfusion-rehabilitates-sepsis-induced-lung-injury
#1
J Hunter Mehaffey, Eric J Charles, Ashish K Sharma, Morgan Salmon, Dustin Money, Sarah Schubert, Mark H Stoler, Curtis G Tribble, Victor E Laubach, Mark E Roeser, Irving L Kron
BACKGROUND: Sepsis is the number one cause of lung injury in adults. Ex vivo lung perfusion (EVLP) is gaining clinical acceptance for donor lung evaluation and rehabilitation and may expand the use of marginal organs for transplantation. We hypothesized that 4 hours of normothermic EVLP would improve compliance and oxygenation in a porcine model of sepsis-induced lung injury. METHODS: We used intravenous lipopolysaccharide (LPS) to induce a systemic inflammatory response in a porcine model of lung injury...
April 20, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28424633/psychopathological-aspects-in-childhood-hematopoietic-stem-cell-transplantation-hsct-the-perception-of-parents-and-adolescents
#2
Silvia Zanato, Annalisa Traverso, Marta Tremolada, Francesco Sinatora, Alessio Porreca, Giorgio Pozziani, Nicoletta Di Florio, Fabia Capello, Antonio Marzollo, Manuela Tumino, Chiara Cattelan, Giuseppe Basso, Chiara Messina
Background: Data about psychosocial sequelae of childhood Hematopoietic Stem Cell Transplantation (HSCT) are limited and the association with a specific donor type or other medical factors is largely unknown (Chang et al., 2012). The aim of the present study was to compare the psychological aspects of pediatric HSCT survivors with healthy peers. A secondary aim was to detect whether parents and children differed in the perception of mental health status. The influence of medical factors on psychological status was also examined...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28422774/squamous-cellular-carcinoma-antigen-serum-determination-as-a-biomarker-of-barrett-esophagus-and-esophageal-cancer-a-phase-iii-study
#3
Gemma Maddalo, Matteo Fassan, Romilda Cardin, Marika Piciocchi, Filippo Marafatto, Massimo Rugge, Giovanni Zaninotto, Caterina Pozzan, Carlo Castoro, Alberto Ruol, Alessandra Biasiolo, Fabio Farinati
GOAL: To evaluate the potential role of the determination of the immunocomplexed form of squamous cell carcinoma antigen [SCCA-immunoglobulin (Ig)M] for the screening of Barrett esophagus (BE) and esophageal adenocarcinoma (EAC). BACKGROUND: The cost-effectiveness of surveillance in BE is still debated and the use of biomarkers in screening and surveillance still not recommended. No information is available regarding SCCA-IgM determination in BE. STUDY: SCCA-IgM levels were determined (enzyme-linked immunosorbent assay) in 231 patients prospectively recruited, 71 with BE, 53 with EAC, and 107 controls, including 42 blood donors and 65 patients with gastroesophageal reflux...
April 18, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28412292/hla-bw4-80-t-and-multiple-hla-bw4-copies-combined-with-kir3dl1-associate-with-spontaneous-clearance-of-hcv-infection-in-people-who-inject-drugs
#4
Christine Thöns, Tina Senff, Theresa J Hydes, Angela R Manser, Falko M Heinemann, Andreas Heinold, Martin Heilmann, Arthur Y Kim, Markus Uhrberg, Norbert Scherbaum, Georg M Lauer, Salim I Khakoo, Jörg Timm
BACKGROUND AND AIMS: NK cell function is regulated by inhibitory and activating receptors including killer-cell immunoglobulin-like receptors (KIRs). Here, we analyzed the impact of different KIR/KIR-ligand genotypes on the outcome of HCV infection in people who inject drugs (PWID). KIR/KIR-ligand genotypes associated with spontaneous clearance of HCV infection were identified in a cohort of PWID from Germany (n=266) and further validated in a second anti-HCV positive cohort of PWID recruited in North America (n=342)...
April 12, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28410427/tcr-stimulation-strength-is-inversely-associated-with-establishment-of-functional-brain-resident-memory-cd8-t-cells-during-persistent-viral-infection
#5
Saumya Maru, Ge Jin, Todd D Schell, Aron E Lukacher
Establishing functional tissue-resident memory (TRM) cells at sites of infection is a newfound objective of T cell vaccine design. To directly assess the impact of antigen stimulation strength on memory CD8 T cell formation and function during a persistent viral infection, we created a library of mouse polyomavirus (MuPyV) variants with substitutions in a subdominant CD8 T cell epitope that exhibit a broad range of efficiency in stimulating TCR transgenic CD8 T cells. By altering a subdominant epitope in a nonstructural viral protein and monitoring memory differentiation of donor monoclonal CD8 T cells in immunocompetent mice, we circumvented potentially confounding changes in viral infection levels, virus-associated inflammation, size of the immunodominant virus-specific CD8 T cell response, and shifts in TCR affinity that may accompany temporal recruitment of endogenous polyclonal cells...
April 14, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28401619/non-compliance-to-infectious-disease-deferral-criteria-among-hong-kong-s-blood-donors
#6
S S Lee, E K H Cheung, J N S Leung, C K Lee
BACKGROUND AND OBJECTIVES: Donor screening alone cannot eliminate the risk of transfusion-transmitted HIV infection. Donor deferral according to established criteria is a supplemental strategy, which has focused largely on men who have sex with men (MSM). A study was conducted to determine the compliance of non-MSM donors with such criteria and examine its implications on blood safety. MATERIALS AND METHODS: Chinese donors who have just donated blood at blood donor centres in Hong Kong were recruited...
April 11, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28396163/east-meets-west-impact-of-ethnicity-on-donor-match-rates-in-the-ezer-mizion-bone-marrow-donor-registry
#7
Michael Halagan, Sigal Manor, Nira Shriki, Isaac Yaniv, Bracha Zisser, Abeer Madbouly, Martin Maiers, Jerry Stein
Human Leukocyte Antigen (HLA) haplotype frequencies in a volunteer bone marrow donor registry should reflect the frequencies of potential transplant recipients served by that registry, a challenge in a country with diverse sub ethnicities of immigrants from Eastern and Western cultures, such as Israel. We measured the likelihood of finding suitable donors for hypothetical patients drawn from defined sub-ethnicities in the Ezer Mizion Bone Marrow Donor Registry (EM BMDR) both from donors within and outside the registry now and during the coming decade...
April 7, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28394024/a-brief-motivational-interview-promotes-internal-motivation-to-donate-blood-among-young-adults-with-and-without-a-prior-donation-history
#8
Irina E Livitz, Kristen R Fox, Lina K Himawan, Christopher R France
BACKGROUND: Recruitment and retention of first-time and repeat donors is essential to maintain a stable blood supply. Recent evidence has shown that promoting internal motivation may be an effective strategy to enhance donation behavior. We tested the efficacy of an in-person motivational interview at increasing internal motivation and intention to donate. STUDY DESIGN AND METHODS: A sample of 219 donors and nondonors (69.4% female; mean ± SD age, 19.2 ± 1...
April 10, 2017: Transfusion
https://www.readbyqxmd.com/read/28391649/prevalence-and-mode-of-inheritance-of-the-dal-blood-group-in-dogs-in-north-america
#9
S Goulet, U Giger, J Arsenault, A Abrams-Ogg, C C Euler, M-C Blais
BACKGROUND: The Dal blood group system was identified a decade ago by the accidental sensitization of a Dal- Dalmatian with a Dal+ blood transfusion. Similar Dal-related blood incompatibilities have been suspected in other Dalmatians, Doberman Pinschers, and other breeds. OBJECTIVES: To determine the prevalence and mode of inheritance of the Dal antigen expression in dogs. ANIMALS: A total of 1130 dogs including 128 Dalmatians, 432 Doberman Pinschers, 21 Shih Tzus, and 549 dogs of other breeds including 228 blood donors were recruited from North America between 2008 and 2015...
April 9, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28389623/neoplastic-plasma-cells-generate-an-inflammatory-environment-within-bone-marrow-and-markedly-alter-the-distribution-of-t-cells-between-lymphoid-compartments
#10
Oliver C Goodyear, Sarah Essex, Anandram Seetharam, Supratik Basu, Paul Moss, Guy Pratt
Monoclonal gammopathy of undetermined significance (MGUS) and multiple myeloma (MM) are characterised by the accumulation of malignant plasma cells within bone marrow and lead to a range of abnormalities in the peripheral blood T cell repertoire. We investigated the level of inflammatory chemokines within the bone marrow and blood of patients with MGUS and MM and related this to the pattern of chemokine receptor expression on T cells in both compartments.The expression of a wide range of chemokine ligands for CXCR3 and CCR4 was markedly increased within the bone marrow of patients with MGUS and MM compared to healthy donors...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28382765/factors-influencing-blood-donation-a-cross-sectional-survey-in-guangzhou-china
#11
J Ou-Yang, C-H Bei, B He, X Rong
OBJECTIVES: The present study aimed to determine major factors that influence blood donation in China. BACKGROUND: Factors affecting blood donation often vary in various populations. METHODS: This cross-sectional study used self-administered, standardised, structured questionnaires to survey selected donors and non-donors in Guangzhou, China between 10 December 2013 and 25 June 2014. RESULTS: Among the 1080 questionnaires collected, 1034 (95·7%) questionnaires were valid for this analysis, including 602 donors and 432 non-donors...
April 6, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28382399/ccr5-in-recruitment-and-activation-of-myeloid-derived-suppressor-cells-in-melanoma
#12
REVIEW
Viktor Umansky, Carolin Blattner, Christoffer Gebhardt, Jochen Utikal
Malignant melanoma is characterized by the development of chronic inflammation in the tumor microenvironment, leading to the accumulation of myeloid-derived suppressor cells (MDSCs). Using ret transgenic mouse melanoma model, we found a significant migration of MDSCs expressing C-C chemokine receptor (CCR)5 into primary tumors and metastatic lymph nodes, which was correlated with tumor progression. An increased CCR5 expression on MDSCs was associated with elevated concentrations of CCR5 ligands in melanoma microenvironment...
April 5, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28381700/occult-hepatitis-b-virus-infection-in-hyperlipidemia-patients
#13
Liu Yang, Tingting Li, Wenmin Li, Xi Tang, Jinfeng Li, Ruiwen Long, Yongshui Fu, Jean-Pierre Allain, Chengyao Li
Chronic hepatitis B virus (HBV) infection is associated with lower prevalence of hyperlipidemia (HLP). However, occult HBV infection (OBI) in HLP patients has not yet been explored. OBI is defined as the presence of detectable HBV DNA in serum or liver tissue but undetectable HBV surface antigen in serum. In this study, 1,036 HLP patients and 1,134 replacement blood donor controls were recruited. Among them, 252 HLP patients and 255 blood donors with antibody to HBV core positive were selected and analyzed...
April 2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28381523/human-milk-oligosaccharide-composition-predicts-risk-of-necrotising-enterocolitis-in-preterm-infants
#14
Chloe A Autran, Benjamin P Kellman, Jae H Kim, Elizabeth Asztalos, Arlin B Blood, Erin C Hamilton Spence, Aloka L Patel, Jiayi Hou, Nathan E Lewis, Lars Bode
OBJECTIVE: Necrotising enterocolitis (NEC) is one of the most common and often fatal intestinal disorders in preterm infants. Markers to identify at-risk infants as well as therapies to prevent and treat NEC are limited and urgently needed. NEC incidence is significantly lower in breast-fed compared with formula-fed infants. Infant formula lacks human milk oligosaccharides (HMO), such as disialyllacto-N-tetraose (DSLNT), which prevents NEC in neonatal rats. However, it is unknown if DSLNT also protects human preterm infants...
April 5, 2017: Gut
https://www.readbyqxmd.com/read/28379941/myt1l-safeguards-neuronal-identity-by-actively-repressing-many-non-neuronal-fates
#15
Moritz Mall, Michael S Kareta, Soham Chanda, Henrik Ahlenius, Nicholas Perotti, Bo Zhou, Sarah D Grieder, Xuecai Ge, Sienna Drake, Cheen Euong Ang, Brandon M Walker, Thomas Vierbuchen, Daniel R Fuentes, Philip Brennecke, Kazuhiro R Nitta, Arttu Jolma, Lars M Steinmetz, Jussi Taipale, Thomas C Südhof, Marius Wernig
Normal differentiation and induced reprogramming require the activation of target cell programs and silencing of donor cell programs. In reprogramming, the same factors are often used to reprogram many different donor cell types. As most developmental repressors, such as RE1-silencing transcription factor (REST) and Groucho (also known as TLE), are considered lineage-specific repressors, it remains unclear how identical combinations of transcription factors can silence so many different donor programs. Distinct lineage repressors would have to be induced in different donor cell types...
April 13, 2017: Nature
https://www.readbyqxmd.com/read/28379431/barriers-to-living-donor-kidney-transplantation-in-the-united-kingdom-a-national-observational-study
#16
Diana A Wu, Matthew L Robb, Christopher J E Watson, John L R Forsythe, Charles R V Tomson, John Cairns, Paul Roderick, Rachel J Johnson, Rommel Ravanan, Damian Fogarty, Clare Bradley, Andrea Gibbons, Wendy Metcalfe, Heather Draper, Andrew J Bradley, Gabriel C Oniscu
Background.: Living donor kidney transplantation (LDKT) provides more timely access to transplantation and better clinical outcomes than deceased donor kidney transplantation (DDKT). This study investigated disparities in the utilization of LDKT in the UK. Methods.: A total of 2055 adults undergoing kidney transplantation between November 2011 and March 2013 were prospectively recruited from all 23 UK transplant centres as part of the Access to Transplantation and Transplant Outcome Measures (ATTOM) study...
March 31, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28378725/-plasma-low-molecular-weight-dna-in-patients-with-chronic-obstructive-pulmonary-disease
#17
I N Vasil'eva, V G Bespalov
AIM: To determine plasma extracellular low-molecular-weight DNA (elmwDNA) as an indicator of apoptosis in patients with chronic obstructive pulmonary disease (COPD) in remission versus healthy donors, patients with chronic non-obstructive bronchitis (CNOB), and their first-degree relatives (FDRs). SUBJECTS AND METHODS: The investigation recruited 110 participants, including 17 healthy donors, 31 patients with COPD, and 20 patients with CNOB in remission, 19 healthy FDRs of patients with COPD, and 23 healthy FDRs of those with SNOB...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28368299/natural-killer-t-cells-in-liver-ischemia-reperfusion-injury
#18
REVIEW
Michael A Zimmerman, Alicia Martin, Jennifer Yee, Jennifer Schiller, Johnny C Hong
Restoration of blood flow to an ischemic organ results in significant tissue injury. In the field of liver transplantation, ischemia-reperfusion injury (IRI) has proven to be a formidable clinical obstacle. In addition to metabolic stress and inflammation, IRI results in profound graft dysfunction and loss. The severity of IRI further limits the ability to expand the donor pool by using partial grafts and marginal organs. As such, the inflammatory response to reperfusion of the liver continues to be an area of intense investigation...
April 1, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28351891/squamous-cell-tumors-recruit-%C3%AE-%C3%AE-t-cells-producing-either-il17-or-ifn%C3%AE-depending-on-the-tumor-stage
#19
Elena Lo Presti, Francesca Toia, Sebastiano Oieni, Simona Buccheri, Alice Turdo, Laura Rosa Mangiapane, Giuseppina Campisi, Valentina Caputo, Matilde Todaro, Giorgio Stassi, Adriana Cordova, Francesco Moschella, Gaetana Rinaldi, Serena Meraviglia, Francesco Dieli
The identification of reciprocal interactions between tumor-infiltrating immune cells and the microenviroment may help us understand mechanisms of tumor growth inhibition or progression. We have assessed the frequencies of tumor-infiltrating and circulating γδ T cells and regulatory T cells (Treg) from 47 patients with squamous cell carcinoma (SCC), to determine if they correlated with progression or survival. Vδ1 T cells infiltrated SSC tissue to a greater extent than normal skin, but SCC patients and healthy subjects had similar amounts circulating...
March 28, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28341755/pathogenic-variants-in-the-healthy-elderly-unique-ethical-and-practical-challenges
#20
Paul Lacaze, Joanne Ryan, Robyn Woods, Ingrid Winship, John McNeil
: Genetic research into ageing, longevity and late-onset disease is becoming increasingly common. Yet, there is a paucity of knowledge related to clinical actionability and the return of pathogenic variants to otherwise healthy elderly individuals. Whether or not genetic research in the elderly should be managed differently from standard practices adapted for younger populations has not yet been defined. In this article, we provide an overview of ethical and practical challenges in preparing for a genetic study of over 14 000 healthy Australians aged 70 years or older enrolled in the ASPirin in Reducing Events in the Elderly (ASPREE) Healthy Ageing Biobank...
March 24, 2017: Journal of Medical Ethics
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