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https://www.readbyqxmd.com/read/27933655/immunological-diversity-in-phenotypes-of-chronic-lung-allograft-dysfunction-a-comprehensive-immunohistochemical-analysis
#1
Elly Vandermeulen, Elise Lammertyn, Stijn E Verleden, David Ruttens, Hannelore Bellon, Mario Ricciardi, Jana Somers, Ken R Bracke, Kathleen Van Den Eynde, Thomas Tousseyn, Guy G Brusselle, Erik K Verbeken, Johny Verschakelen, Marie-Paule Emonds, Dirk E Van Raemdonck, Geert M Verleden, Robin Vos, Bart M Vanaudenaerde
Chronic rejection after organ transplantation is defined as a humoral- and cell-mediated immune response directed against the allograft. In lung transplantation, chronic rejection is nowadays clinically defined as a cause of chronic lung allograft dysfunction (CLAD), consisting of different clinical phenotypes including restrictive allograft syndrome (RAS) and bronchiolitis obliterans syndrome (BOS). However, the differential role of humoral and cellular immunity is not investigated up to now. Explant lungs of patients with end-stage BOS (n = 19) and RAS (n = 18) were assessed for the presence of lymphoid (B and T cells) and myeloid cells (dendritic cells, eosinophils, mast cells, neutrophils, and macrophages) and compared to nontransplant control lung biopsies (n = 21)...
November 7, 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/27933042/the-role-of-stress-and-stress-adaptations-in-determining-the-fate-of-the-bacterial-pathogen-listeria-monocytogenes-in-the-food-chain
#2
REVIEW
Kerrie NicAogáin, Conor P O'Byrne
The foodborne pathogen Listeria monocytogenes is a highly adaptable organism that can persist in a wide range of environmental and food-related niches. The consumption of contaminated ready-to-eat foods can cause infections, termed listeriosis, in vulnerable humans, particularly those with weakened immune systems. Although these infections are comparatively rare they are associated with high mortality rates and therefore this pathogen has a significant impact on food safety. L. monocytogenes can adapt to and survive a wide range of stress conditions including low pH, low water activity, and low temperature, which makes it problematic for food producers who rely on these stresses for preservation...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27932965/the-neural-correlates-of-humor-creativity
#3
Ori Amir, Irving Biederman
Unlike passive humor appreciation, the neural correlates of real-time humor creation have been unexplored. As a case study for creativity, humor generation uniquely affords a reliable assessment of a creative product's quality with a clear and relatively rapid beginning and end, rendering it amenable to neuroimaging that has the potential for reflecting individual differences in expertise. Professional and amateur "improv" comedians and controls viewed New Yorker cartoon drawings while being scanned. For each drawing, they were instructed to generate either a humorous or a mundane caption...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27932936/riboflavin-along-with-antibiotics-balances-reactive-oxygen-species-and-inflammatory-cytokines-and-controls-staphylococcus-aureus-infection-by-boosting-murine-macrophage-function-and-regulates-inflammation
#4
Somrita Dey, Biswadev Bishayi
BACKGROUND: Macrophages serve as intracellular reservoirs of S. aureus. Recent in vitro studies have confirmed high level resistance by S. aureus to macrophage mediated killing and the intracellular persistence of Staphylococci may play an important role in the pathogenesis. Since this localization protects them from both cell-mediated and humoral immune responses, therefore, a successful anti-staphylococcal therapy should include the elimination of intracellular bacteria, further protecting the host cells from staphylococci-induced cell death...
2016: Journal of Inflammation
https://www.readbyqxmd.com/read/27932152/successful-second-allogeneic-stem-cell-transplantation-from-a-sibling-donor-for-relapse-of-myelodysplastic-syndrome-in-a-recipient-of-a-renal-transplant-from-his-mother-case-report
#5
M Ikeda, N Tsukada, H Chikai, M Tasaki, K Saito, Y Nakagawa, K Takahashi, K Suzuki
There have been few reports on allogeneic stem cell transplantation in patients who have previously undergone solid organ transplantation. The clinical course of such patients is not yet well recognized. Therefore, appropriate immunosuppressive prophylaxis for the rejection of a solid organ graft or for graft-versus-host disease has not yet been established. We present the case of a successful allogeneic stem cell transplantation in a patient who relapsed after a first allogeneic stem cell transplantation for myelodysplastic syndrome and who had previously undergone renal transplantation...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932124/de-novo-donor-specific-anti-human-leukocyte-antigen-antibody-detection-in-long-term-adult-liver-transplantation
#6
D San Segundo, C Alonso, P Ruiz, I Roman, M T Arias-Loste, A Cuadrado, A Puente, F Casafont, M López-Hoyos, J Crespo, E Fábrega
INTRODUCTION: Information about the consequences of de novo donor-specific anti-human leukocyte antigen (DSA) antibody development in the long term after adult liver transplantation (LT) is scarce. We conducted a cross-sectional study in LT patients with a follow-up of at least 6 years. METHODS: A total of 28 adult LT patients were included, with a median follow-up of 77 months (range, 63 to 96) and without preformed anti- human leukocyte antigen (HLA) antibodies prior to LT...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932107/antibody-mediated-acute-vascular-rejection-of-kidney-allografts-fifteen-year-follow-up
#7
B Rodríguez Cubillo, I Pérez Flores, N Calvo, A Pascual, J A Cortés, M A Moreno, J Blanco, A Sánchez Fructuoso
BACKGROUND: Although acute vascular rejection (AVR) is associated with a high risk of graft loss, it remains unclear whether AVR with accompanied cellular or humoral rejection (AHR) has dissimilar outcomes. The aim of this study was to examine the association between subtypes of AVR and graft loss. METHODS: We assessed patients who provided biopsy samples for acute allograft rejection from 1998 to 2014. To investigate distinct rejection patterns, we retrospectively assessed rejection episodes with review of graft histology as well as donor-specific anti-HLA antibodies when available...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932105/b-cell-activating-factor-levels-are-associated-with-antibody-mediated-histological-damage-in-kidney-transplantation
#8
C Sango, D Merino, D San Segundo, E Rodrigo, M Lopez-Hoyos, A Benito, M Ángeles Ramos, J Gómez-Román, M Arias
INTRODUCTION: Along with death engraftment, in recent years, antibody-mediated damage has been identified as the leading cause of loss of kidney transplants. Despite the recognition of the role of the B-lymphocyte subpopulation in the development of both tolerance and rejection, little is known about the trigger mechanisms and effectors of this humoral response. BACKGROUND: We analyzed the relationship between B lymphocyte subpopulations and levels of B-cell-activating factor (BAFF) with the histological findings in biopsies of renal transplantation...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932099/antibody-mediated-rejection-in-kidney-transplantation-without-evidence-of-anti-hla-antibodies
#9
J Irure, M López-Hoyos, E Rodrigo, J Gómez-Román, J C Ruiz, M Arias, D San Segundo
INTRODUCTION: The definition of antibody-mediated rejection (AMR) is based on serologic (presence and/or development of donor-specific anti-HLA antibodies [DSAs]) and histologic (C4d deposition and endothelial damage) criteria. However, several cases of AMR have been described without C4d deposition, and other cases of histologic AMR without DSAs, which could be driven by other non-HLA alloantibodies such as anti-MICA or anti-angiotensin II type I receptor (AT1R). Here we studied clinical and histologic humoral rejection in kidney transplant recipients without evidence of anti-HLA antibodies...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932048/fatal-intravenous-injection-of-potassium-is-postmortem-biochemistry-useful-for-the-diagnosis
#10
Cristian Palmiere, Maria Pia Scarpelli, Vincent Varlet, Pia Baumann, Katarzyna Michaud, Marc Augsburger
Fatal cases of potassium overdoses have traditionally been considered indemonstrable due postmortem biochemical investigation limits (mainly potassium determination in postmortem serum and vitreous humor). Nevertheless, some authors have expressed a divergent opinion over the years based on the results of their own investigations. In this study, we investigated left vitreous, right vitreous, postmortem serum from peripheral blood, postmortem serum from cardiac blood, urine, pericardial and cerebrospinal fluid potassium concentrations in 21 forensic autopsy cases...
November 27, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27931976/human-newborn-b-cells-mount-an-ifnar-dependent-humoral-response-to-rsv
#11
Jop Jans, Matthew Pettengill, Dhohyung Kim, Cas van der Made, Ronald de Groot, Stefanie Henriet, Marien I de Jonge, Gerben Ferwerda, Ofer Levy
This study provides evidence of a first line of human humoral defense against RSV infection in early life including the presence of natural neutralizing anti-RSV IgM as well as an IFN-β-mediated newborn B cell activation.
December 5, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27929756/spontaneous-mouse-mammary-tumor-cell-lysates-induce-igg-production-in-spleen-mononuclear-cells-of-healthy-and-tumor-bearing-mice
#12
Ahad Khalilnezhad, Elham Mahmoudian, Nariman Mosaffa, Jaleh Mohsenifar, Davar Amani
BACKGROUND: We hypothesized that Tumor cell lysate (TCL) prepared from spontaneous mouse mammary tumor (SMMT) may elicit IgG production by spleen mononuclear cells (SMCs) in ex vivo. METHODS: The SMCs from healthy mice (HM, n=6) and four-week SMMT-bearing mice (TBM, n=6) was cultured in presence of TCL and mitogen for 42 hours at 37 °C, separately. Serum and SMCs culture supernatant levels of IFNγ, IL-4, and total IgG were measured using special ELISA kits. RESULTS: Serum IgG level of TBM was significantly higher than that of HM group (P= 0...
December 8, 2016: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/27928644/cardioprotection-by-remote-ischemic-conditioning-and-its-signal-transduction
#13
REVIEW
Petra Kleinbongard, Andreas Skyschally, Gerd Heusch
Cardioprotective strategies aim to salvage myocardium from ischemia/reperfusion injury and to reduce infarct size and its consequences. Different stimuli, acting at sites remote from the heart (remote conditioning), activate molecular self-defense mechanisms at the target organ heart as well as in other parenchymal organs. Remote conditioning of the heart has been established in many experimental studies and successfully translated to patients. Remote ischemic conditioning by short repetitive cycles of ischemia/reperfusion on an extremity reduces infarct size and improves the prognosis of patients with reperfused myocardial infarction...
December 7, 2016: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/27926921/schistosoma-mansoni-infection-can-jeopardize-the-duration-of-protective-levels-of-antibody-responses-to-immunizations-against-hepatitis-b-and-tetanus-toxoid
#14
Diana K Riner, Eric M Ndombi, Jennifer M Carter, Amos Omondi, Nupur Kittur, Emmy Kavere, Harrison K Korir, Briana Flaherty, Diana Karanja, Daniel G Colley
BACKGROUND: Schistosomiasis is a disease of major public health importance in sub-Saharan Africa. Immunoregulation begins early in schistosome infection and is characterized by hyporesponsiveness to parasite and bystander antigens, suggesting that a schistosome infection at the time of immunization could negatively impact the induction of protective vaccine responses. This study examined whether having a Schistosoma mansoni infection at the time of immunization with hepatitis B and tetanus toxoid (TT) vaccines impacts an individual's ability to achieve and maintain protective antibody levels against hepatitis B surface antigen or TT...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27926486/novel-epstein-barr-virus-like-particles-incorporating-gh-gl-ebna1-or-gb-lmp2-induce-high-neutralizing-antibody-titers-and-ebv-specific-t-cell-responses-in-immunized-mice
#15
Elizabeth M Perez, Joslyn Foley, Timelia Tison, Rute Silva, Javier Gordon Ogembo
Previous Epstein-Barr virus (EBV) prophylactic vaccines based on the major surface glycoprotein gp350/220 as an immunogen have failed to block viral infection in humans, suggesting a need to target other viral envelope glycoproteins. In this study, we reasoned that incorporating gH/gL or gB, critical glycoproteins for viral fusion and entry, on the surface of a virus-like particle (VLP) would be more immunogenic than gp350/220 for generating effective neutralizing antibodies to prevent viral infection of both epithelial and B cell lines...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27925389/the-long-term-immunological-effects-of-alloferon-and-its-analogues-in-the-mealworm-tenebrio-molitor
#16
Elżbieta Czarniewska, Arkadiusz Urbański, Szymon Chowański, Mariola Kuczer
The subject of this paper is a search for the long-term immunological effects of alloferon and 3 structural analogues of alloferon, which were earlier characterised by the highest pro-apoptotic activity in Tenebrio molitor. The differences in the actions of these peptides on immune response were observed. Alloferon increased nodulation and significantly phenoloxidase activity in the haemolymph of experimentally infected T. molitor. However, [Phe(p-NH2 )(1) ]- and [Phe(p-OMe)(1) ]-alloferon strongly inhibited cellular and humoral defense of the mealworm against Staphylococcus aureus infection...
December 7, 2016: Insect Science
https://www.readbyqxmd.com/read/27924833/tgf%C3%AE-2-induced-outflow-alterations-in-a-bioengineered-trabecular-meshwork-are-offset-by-a-rho-associated-kinase-inhibitor
#17
Karen Y Torrejon, Ellen L Papke, Justin R Halman, Magnus Bergkvist, John Danias, Susan T Sharfstein, Yubing Xie
Members of the transforming growth factor beta (TGFβ) cytokine family have long been associated with affecting several cellular functions, including cell proliferation, differentiation and extracellular matrix (ECM) turnover. Of particular interest to this work, TGFβ2 has been linked to most types of glaucomas as a potential fibrotic agent that can cause elevation of intraocular pressure (IOP). Given that the trabecular meshwork (TM) provides most of aqueous humor outflow resistance in the eye, an in vitro bioengineered human TM (HTM) model has been created and validated by analyzing effects of TGFβ2 on transcellular pressure changes and outflow facility...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27924632/low-level-expression-of-sod1-in-peripheral-blood-samples-of-patients-diagnosed-with-primary-open-angle-glaucoma
#18
Licelly Canizales, Laura Rodriguez, Carlos Rivera, Alexander Martinez, Fabián Mendez, Andres Castillo
AIM: Glaucoma is a multifactorial disease of retinal ganglion cells, with low prognosis. For that reason, the identification of biomarkers in peripheral blood samples for diagnostics and treatment of the disease is needed. To establish mRNA expression level of several oxidative stress biomarkers reported in aqueous humor of patients with primary open-angle glaucoma (POAG). MATERIALS & METHODS: The mRNA expression levels of eight genes from 15 patients diagnosed with POAG and 11 control subjects were analyzed using an RT(2) Custom Profiler PCR Array...
December 7, 2016: Biomarkers in Medicine
https://www.readbyqxmd.com/read/27923501/influenza-a-virus-vaccines-for-swine
#19
Amy L Vincent, Daniel R Perez, Daniela Rajao, Tavis K Anderson, Eugenio J Abente, Rasna R Walia, Nicola S Lewis
Economic losses due to influenza A virus (IAV) infections are substantial and a global problem, ranking among the top three major health challenges in the swine industry. Currently, H1 and H3 subtypes circulate in pigs globally associated with different combinations of N1 and N2 subtypes; however, the origin, gene constellation, and antigenic makeup of IAV vary greatly on different continents. Vaccination is one means of mitigating the effects of IAV disease, and vaccines are most effective if the strains included closely match the currently circulating strains in pigs...
November 24, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/27920824/cloning-expression-and-molecular-analysis-of-iranian-brucella-melitensis-omp25-gene-for-designing-a-subunit-vaccine
#20
Soheil Yousefi, Mojtaba Tahmoorespur, Mohammad Hadi Sekhavati
Brucellosis is a well-known domestic animal infectious disease, which is caused by Brucella bacterium. The outer membrane protein 25 kDa (Omp25) gene plays an important role in simulating of TNF-α, IFN-α, macrophage, and cytokines cells. In the current study molecular cloning and expression analysis of Omp25 gene for designing a subunit vaccine against Brucella was investigated. Amplifying the full length of candidate gene was performed using specific primers. Sub-cloning of this gene conducted using pTZ57R/T vector in TOP10F strain of Escherichia coli(E...
October 2016: Research in Pharmaceutical Sciences
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