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https://www.readbyqxmd.com/read/28421423/the-effects-of-direct-fed-microbial-supplementation-as-an-alternative-to-antibiotics-on-growth-performance-intestinal-immune-status-and-epithelial-barrier-gene-expression-in-broiler-chickens
#1
U Gadde, S T Oh, Y S Lee, E Davis, N Zimmerman, T Rehberger, Hyun S Lillehoj
The objective of this study was to investigate the effects of Bacillus subtilis-based probiotic supplementation in broiler chicken diets on growth performance, feed efficiency, intestinal cytokine, and tight junction (TJ) protein mRNA expression. Zero-day-old broiler chicks (n = 140) were randomly assigned to one of five dietary treatments: basal diet (CON); basal diet supplemented with either antibiotic bacitracin methylene disalicylate (BMD); or probiotics, namely, B. subtilis strain 1781 (PB1), a combination of B...
April 18, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28415569/interleukin-2-regulatory-t-cell-axis-critically-regulates-maintenance-of-hematopoietic-stem-cells
#2
Sabrina Giampaolo, Gabriela Wójcik, Edgar Serfling, Amiya K Patra
The role of IL-2 in HSC maintenance is unknown. Here we show that Il2-/- mice develop severe anomalies in HSC maintenance leading to defective hematopoiesis. Whereas, lack of IL-2 signaling was detrimental for lympho- and erythropoiesis, myelopoiesis was enhanced in Il2-/- mice. Investigation of the underlying mechanisms of dysregulated hematopoiesis in Il2-/- mice shows that the IL-2-Treg cell axis is indispensable for HSC maintenance and normal hematopoiesis. Lack of Treg activity resulted in increased IFN-γ production by activated T cells and an expansion of the HSCs in the bone marrow (BM)...
March 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28390203/lipopolysaccharide-and-lipoteichoic-acid-virulence-deactivation-by-stannous-fluoride
#3
Chris Haught, Sancai Xie, Ben Circello, Cheryl S Tansky, Deepa Khambe, Malgorzata Klukowska, Tom Huggins, Donald J White
OBJECTIVES: Oral bacterial pathogens promote gingivitis and periodontal disease. Bacterial endotoxins, also known as lipopolysaccharides (LPSs) and lipoteichoic acids (LTAs), are known to enhance bacterial pathogenicity through binding with Toll-like receptors (TLRs), a group of pattern recognition receptors critical to the activation of innate immunity, that are expressed on host cells. Both LPS and LTA contain lipophilic domains and anionic charges that may be susceptible to reactivity with stannous fluoride, a commonly used ingredient clinically proven for the treatment and prevention of gingivitis...
September 2016: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/28374494/immunogenetic-profiling-of-23-snps-of-cytokine-and-chemokine-receptor-genes-through-a-minisequencing-technique-design-development-and-validation
#4
J M Valverde-Villegas, R M de Medeiros, S E M Almeida, J A B Chies
The minisequencing technique offers accuracy and robustness to genotyping of polymorphic DNA variants, being an excellent option for the identification and analyses of prognostic/susceptibility markers in human diseases. Two multiplex minisequencing assays were designed and standardized to screen 23 candidate SNPs in cytokine, chemokine receptor and ligand genes previously associated with susceptibility to cancer and autoimmune disorders as well as to infectious diseases outcome. The SNPs were displayed in two separate panels (panel 1-IL2 rs2069762, TNFα rs1800629, rs361525; IL4 rs2243250; IL6 rs1800795; IL10 rs1800896, rs1800872; IL17A rs8193036, rs2275913 and panel 2-CCR3 rs309125, CCR4 rs6770096, rs2228428; CCR6 rs968334; CCR8 rs2853699; CXCR3 rs34334103, rs2280964;CXCR6 rs223435, rs2234358; CCL20 rs13034664, rs6749704; CCL22 rs4359426; CXCL10/IP-10 rs3921, rs56061981)...
April 4, 2017: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/28366330/cytokine-polymorphisms-are-associated-with-daytime-napping-in-adults-living-with-hiv
#5
Eeeseung Byun, Caryl L Gay, Carmen J Portillo, Clive R Pullinger, Bradley E Aouizerat, Kathryn A Lee
OBJECTIVE/BACKGROUND: Daytime napping longer than one hour has been associated with an increased risk for all-cause mortality. Associations between cytokine polymorphisms and daytime napping in chronic illnesses such as HIV, however, have not been well described. The purpose of this study was to examine cytokine polymorphisms associated with long daytime napping in adults living with HIV. METHODS: A cross-sectional analysis was conducted using a convenience sample of 257 adults living with HIV...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28345265/cytokine-and-antioxidant-gene-profiles-from-peripheral-blood-mononuclear-cells-of-pelibuey-lambs-after-haemonchus-contortus-infection
#6
Zaira Estrada-Reyes, Ma Eugenia López-Arellano, Felipe Torres-Acosta, Alberto López-Reyes, Alfredo Lagunas-Martínez, Pedro Mendoza-de-Gives, Roberto González-Garduño, Sara Olazarán-Jenkins, David Reyes-Guerrero, Gabriel Ramírez-Vargas
The expression profiles of cytokines and anti-oxidant genes were determined from an experimental infection with H. contortus in Pelibuey lambs. The infection was followed for 34 days (d) to determine the number of eggs per gram (epg) and the packed cell volume (PCV). Differential white cell counts and expression profile estimations of IL2, IL4, IL5, IL6, IL8, IL10, IL13, FCεR1A, GPX and SOD1 were determined at 0 h, 4 h, 2 d and 14 d post-infection (PI) in infected and control groups. Comparison of the fold-change between 0 and 4 h, 4 h and 2 d, and 2 and 14 d periods was performed...
March 27, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28343575/expression-analysis-of-toll-like-receptors-and-interleukins-in-tharparkar-cattle-during-acclimation-to-heat-stress-exposure
#7
Jaya Bharati, S S Dangi, S R Mishra, V S Chouhan, V Verma, O Shankar, M K Bharti, A Paul, Dilip K Mahato, G Rajesh, G Singh, V P Maurya, S Bag, Puneet Kumar, M Sarkar
Six male Tharparkar cattle of 2-3 years old were selected for the study. After 15 days acclimation at thermo neutral zone (TNZ) in psychrometric chamber, animals were exposed at 42°C for 6h up to 23 days followed by 12 days of recovery period. Blood samples were collected during control period at TNZ (day 1, 5 and 12), after heat stress exposure (day 1-10, Short Term Heat Stress Acclimation - STHSA; day 15-23, Long Term Heat Stress Acclimation - LTHSA) and recovery period (day 7 and 12) and peripheral blood mononuclear cells (PBMCs) were isolated for RNA and protein extraction...
April 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28337956/acute-renal-graft-versus-host-disease-in-a-murine-model-of-allogeneic-bone-marrow-transplantation
#8
Peter M Schmid, Abdellatif Bouazzaoui, Karin Schmid, Christoph Birner, Christian Schach, Lars S Maier, Ernst Holler, Dierk H Endemann
Acute kidney injury (AKI) is a very common complication after allogeneic bone marrow transplantation (BMT) and associated with poor prognosis. Generally kidneys are assumed to be no direct target of Graft-versus-Host Disease (GvHD), and renal impairment is often attributed to several other factors occurring in the early phase after BMT. Our study aimed to prove the existence of renal GvHD in a fully MHC-mismatched model of BALB/c mice conditioned and transplanted according to two different intensity protocols...
March 23, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28317149/association-between-variants-in-genes-involved-in-the-immune-response-and-prostate-cancer-risk-in-men-randomized-to-the-finasteride-arm-in-the-prostate-cancer-prevention-trial
#9
Danyelle A Winchester, Cathee Till, Phyllis J Goodman, Catherine M Tangen, Regina M Santella, Teresa L Johnson-Pais, Robin J Leach, Jianfeng Xu, S Lilly Zheng, Ian M Thompson, M Scott Lucia, Scott M Lippman, Howard L Parnes, William B Isaacs, Angelo M De Marzo, Charles G Drake, Elizabeth A Platz
BACKGROUND: We reported that some, but not all single nucleotide polymorphisms (SNPs) in select immune response genes are associated with prostate cancer, but not individually with the prevalence of intraprostatic inflammation in the Prostate Cancer Prevention Trial (PCPT) placebo arm. Here, we investigated whether these same SNPs are associated with risk of lower- and higher-grade prostate cancer in men randomized to finasteride, and with prevalence of intraprostatic inflammation among controls...
June 2017: Prostate
https://www.readbyqxmd.com/read/28280693/risk-factors-and-outcomes-of-delayed-graft-function-in-renal-transplant-recipients-receiving-a-steroid-sparing-immunosuppression-protocol
#10
Michelle Willicombe, Anna Rizzello, Dawn Goodall, Vassilios Papalois, Adam G McLean, David Taube
AIM: To analyse the risk factors and outcomes of delayed graft function (DGF) in patients receiving a steroid sparing protocol. METHODS: Four hundred and twenty-seven recipients of deceased donor kidney transplants were studied of which 135 (31.6%) experienced DGF. All patients received monoclonal antibody induction with a tacrolimus based, steroid sparing immunosuppression protocol. RESULTS: Five year patient survival was 87.2% and 94.9% in the DGF and primary graft function (PGF) group respectively, P = 0...
February 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28259042/probiotic-treatment-reduces-depressive-like-behaviour-in-rats-independently-of-diet
#11
Anders Abildgaard, Betina Elfving, Marianne Hokland, Gregers Wegener, Sten Lund
The gut microbiota has recently emerged as an important regulator of brain physiology and behaviour in animals, and ingestion of certain bacteria (probiotics) therefore appear to be a potential treatment for major depressive disorder (MDD). However, some conceptual and mechanistical aspects need further elucidation. We therefore aimed at investigating whether the habitual diet may interact with the effect of probiotics on depression-related behaviour and further examined some potentially involved mechanisms underlying the microbe-mediated behavioural effects...
February 16, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28222797/melanoma-antigen-specific-effector-t-cell-cytokine-secretion-patterns-in-patients-treated-with-ipilimumab
#12
Yana G Najjar, Fei Ding, Yan Lin, Robert VanderWeele, Lisa H Butterfield, Ahmad A Tarhini
BACKGROUND: In a previously reported study, patients with regionally advanced melanoma were treated with neoadjuvant ipilimumab (ipi) (Tarhini in PLoS ONE 9(2): e87705, 3). Significant changes in circulating myeloid derived suppressor cells (MDSC), regulatory T cells (Treg) and peptide specific type I CD4(+) and CD8(+) T cells were noted at week 6 that correlated with clinical outcome. Characterization of antigen-specific effector T cell secreted cytokines may shed insights into ipi associated T cell activation and function...
February 21, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28209780/microtubule-associated-protein-4-controls-nanovesicle-dynamics-and-t-cell-activation
#13
Eugenio Bustos-Morán, Noelia Blas-Rus, Noa Beatriz Martin-Cófreces, Francisco Sánchez-Madrid
The immune synapse (IS) is a specialized structure formed at the contact area between T lymphocytes and antigen-presenting cells (APCs) that is essential for the adaptive immune response. Proper T cell activation requires its polarization towards the APC, which is highly dependent on the tubulin cytoskeleton. Microtubule-associated protein-4 (MAP4) is a microtubule (MT)-stabilizing protein that controls MTs in physiological processes, such as cell division, migration, vesicular transport or primary cilia formation...
April 1, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28202754/jak-stat-signaling-pathways-and-inhibitors-affect-reversion-of-envelope-mutated-hiv-1
#14
Yudong Quan, Hongtao Xu, Yingshan Han, Thibault Mesplède, Mark A Wainberg
HIV can spread by both cell-free and cell-to-cell transmission. Here, we show that numerous of the amino acid changes in Env that are close to the CD4 binding pocket can affect HIV replication. We generated a number of mutant viruses that were unable to infect T cells as cell-free viruses but were nevertheless able to infect certain T cell lines as cell-associated viruses, followed by reversion to wild type. However, the activation of JAK-STAT signaling pathways caused inhibition of such cell-to-cell infection as well as the reversion of multiple HIV Env mutants that displayed differences in ability to bind to the CD4 receptor...
February 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28193233/tacrolimus-in-the-prevention-of-adverse-pregnancy-outcomes-and-diabetes-associated-embryopathies-in-obese-and-diabetic-mice
#15
Ahmad J H Albaghdadi, Melanie A Hewitt, Samantha M Putos, Michael Wells, Terence R S Ozolinš, Frederick W K Kan
BACKGROUND: T2DM is a high-risk pregnancy with adverse fetal and maternal outcomes including repeated miscarriages and fetal malformations. Despite the established association between placental insufficiency and poor maternal Th1-adaptability to the development of pregnancy complications in T2DM, there have been no established data to assess benefits of pre-pregnancy immunosuppression relative to gestational outcomes in T2DM. We hypothesized that pre-pregnancy macrolide immune suppression can re-establish normal placental development and uterine vascular adaptation in a mouse model of obesity-associated T2DM...
February 13, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28174320/isolation-of-luteal-endothelial-cells-and-functional-interactions-with-t-lymphocytes
#16
Sadhat S Walusimbi, Lindy Wetzel, David Townson, Joy Pate
The objectives of this study were to optimize the isolation of luteal endothelial cells (LEC) and examine their functional interactions with autologous T lymphocytes. Analysis by flow cytometry showed that the purity of LEC isolated by filtration was nearly 90% as indicated by Bandeiraea simplicifolia (BS)-1 lectin binding. LEC expressed mRNA for progesterone receptor (PGR), prostaglandin receptors (PTGFR, PTGER2 and 4, and PTGIR), tumor necrosis factor receptors (TNFRSF1A&B) and interleukin (IL) 1B receptors (IL1R1&2)...
February 7, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28145159/non-hla-gene-polymorphisms-in-juvenile-idiopathic-arthritis-associations-with-disease-outcome
#17
M Alberdi-Saugstrup, C Enevold, M Zak, S Nielsen, E Nordal, L Berntson, A Fasth, M Rygg, K Müller
OBJECTIVE: To test the hypothesis that non-HLA single-nucleotide polymorphisms (SNPs) associated with the risk of juvenile idiopathic arthritis (JIA) are risk factors for an unfavourable disease outcome at long-term follow-up. METHODS: The Nordic JIA cohort is a prospective multicentre study cohort of patients from the Nordic countries. In all, 193 patients met the inclusion criteria of having an 8 year follow-up assessment and available DNA sample. Seventeen SNPs met the inclusion criteria of having significant associations with JIA in at least two previous independent study cohorts...
February 1, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28130496/induction-of-il21-in-peripheral-t-follicular-helper-cells-is-an-indicator-of-influenza-vaccine-response-in-a-previously-vaccinated-hiv-infected-pediatric-cohort
#18
Lesley R de Armas, Nicola Cotugno, Suresh Pallikkuth, Li Pan, Stefano Rinaldi, M Celeste Sanchez, Louis Gonzalez, Alberto Cagigi, Paolo Rossi, Paolo Palma, Savita Pahwa
HIV-infected patients of all ages frequently underperform in response to seasonal influenza vaccination, despite virologic control of HIV. The molecular mechanisms governing this impairment, as well as predictive biomarkers for responsiveness, remain unknown. This study was performed in samples obtained prevaccination (T0) from HIV-infected children who received the 2012-2013 seasonal influenza vaccine. Response status was determined based on established criterion for hemagglutination inhibition titer; participants with a hemagglutination titer ≥1:40 plus a ≥4-fold increase over T0 at 3 wk postvaccination were designated as responders...
March 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28127976/galantamine-has-impact-on-immunity-in-mice-exposed-to-keyhole-limpet-hemocyanin
#19
M Pohanka, J Zakova, J Fusek
OBJECTIVES: In this work, we hypothesized whether galantamine could interact with the cholinergic anti-inflammatory pathway and modulate immunity this way. BACKGROUND: Galantamine is a drug used for the therapy of Alzheimer disease. The drug inhibits enzyme acetylcholinesterase in the central nervous system, which causes better availability of neurotransmitter acetylcholine. METHODS: In the experiment, we immunized BALB/c laboratory mice by keyhole limpet hemocyanin (KLH) in combination with galantamine in a dose 0...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28116088/radiotherapy-and-mva-muc1-il-2-vaccine-act-synergistically-for-inducing-specific-immunity-to-muc-1-tumor-antigen
#20
Gilda G Hillman, Lyndsey A Reich, Shoshana E Rothstein, Lisa M Abernathy, Matthew D Fountain, Kali Hankerd, Christopher K Yunker, Joseph T Rakowski, Eric Quemeneur, Philippe Slos
BACKGROUND: We previously demonstrated that tumor irradiation potentiates cancer vaccines using genetic modification of tumor cells in murine tumor models. To investigate whether tumor irradiation augments the immune response to MUC1 tumor antigen, we have tested the efficacy of tumor irradiation combined with an MVA-MUC1-IL2 cancer vaccine (Transgene TG4010) for murine renal adenocarcinoma (Renca) cells transfected with MUC1. METHODS: Established subcutaneous Renca-MUC1 tumors were treated with 8 Gy radiation on day 11 and peritumoral injections of MVA-MUC1-IL2 vector on day 12 and 17, or using a reverse sequence of vaccine followed by radiation...
2017: Journal for Immunotherapy of Cancer
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