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https://www.readbyqxmd.com/read/27933160/post-sensitization-administration-of-non-digestible-oligosaccharides-and-bifidobacterium-breve-m-16v-reduces-allergic-symptoms-in-mice
#1
Betty C A M van Esch, Suzanne Abbring, Mara A P Diks, Gemma M Dingjan, Lucien F Harthoorn, A Paul Vos, Johan Garssen
To support dietary management of severe cow's milk allergic infants, a synbiotic mixture of non-digestible oligosaccharides and Bifidobacterium breve M-16V (B. breve) was designed from source materials that are completely cow's milk-free. It was investigated whether this specific synbiotic concept can reduce an established food allergic response in a research model for hen's egg allergy. Mice were orally sensitized once a week for 5 weeks to ovalbumin (OVA) using cholera toxin (CT) as an adjuvant. Non-sensitized mice received CT in PBS only...
June 2016: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/27932194/associations-between-nod2-irgm-and-ormdl3-polymorphisms-and-pediatric-onset-inflammatory-bowel-disease-in-the-lithuanian-population
#2
Gitana Pranculienė, Rūta Steponaitienė, Jurgita Skiecevičienė, Rūta Kučinskienė, Gediminas Kiudelis, Kęstutis Adamonis, Liutauras Labanauskas, Limas Kupčinskas
BACKGROUND AND OBJECTIVE: Recent GWAS and meta-analyses have revealed about 200 susceptibility genes/loci for inflammatory bowel diseases (IBD). However, only a small number of studies were performed in early-onset IBD. The aim of this study was to assess the association between NOD2, IL23R, ATG16L1, IRGM, IL10, NKX2-3 and ORMDL3 variants and early-onset IBD. MATERIALS AND METHODS: A total of 76 affected individuals (30 with Crohn's disease [CD] and 46 with ulcerative colitis [UC]) at the age of ≤17 years and 158 matched controls recruited in Lithuania were genotyped for the known genetic susceptibility variants in NOD2 (Arg702Trp (rs2066844), Gly908Arg (rs2066845) and Leu1007insC (rs2066847)), IL23R (rs11209026), ATG16L1 (rs2241880), IRGM (rs4958847), IL10 (rs3024505), NKX2-3 (rs11190140) and ORMDL3 (rs2872507) genes...
November 25, 2016: Medicina
https://www.readbyqxmd.com/read/27930538/binocular-indirect-ophthalmo-microscope-assistant-gas-perfused-pars-plana-vitrectomy-a-novel-technique-for-vitreous-sample-acquisition
#3
Luyi Zhang, Xiaoli Yang, Qingqing Zheng, Miaoqin Wu
The vitreous sample has been used for the diagnosis of uveitis and intraocular malignancy for decades. The sample volume is usually limited to 1 mL with current techniques. In the present study, a novel technique for higher amount of vitreous sample acquisition, that is, Binocular Indirect Ophthalmo Microscope-assistant gas-perfused pars plana vitrectomy (BAG-PPV) was invented.For diagnostic purpose, BAG-PPV with 23-ga vitrectomy system was performed on a 54-year-old Chinese male with the symptom of bilateral atypical uveitis...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27929072/antimicrobial-growth-promoters-modulate-host-responses-in-mice-with-a-defined-intestinal-microbiota
#4
Kirsty Brown, Sarah J M Zaytsoff, Richard R E Uwiera, G Douglas Inglis
Antibiotics can promote growth in livestock (antimicrobial growth promoters, AGPs), however lack of knowledge regarding mechanisms has hampered the development of effective non-antibiotic alternatives. Antibiotics affect eukaryotic cells at therapeutic concentrations, yet effects of AGPs on host physiology are relatively understudied, partially due to the complexity of host-microorganism interactions within the gastrointestinal tract. To determine the direct effects of AGPs on the host, we generated Altered Schaedler Flora (ASF) mice, and administered chlortetracycline (CTC) and tylosin phosphate (TYL) in feed...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917866/umbilical-cord-derived-mesenchymal-stem-cells-instruct-monocytes-towards-an-il10-producing-phenotype-by-secreting-il6-and-hgf
#5
Yinan Deng, Yingcai Zhang, Linsen Ye, Tong Zhang, Jintao Cheng, Guihua Chen, Qi Zhang, Yang Yang
Human UC-MSCs are regarded as an attractive alternative to BM-MSCs for clinical applications due to their easy preparation, higher proliferation and lower immunogenicity. However, the mechanisms underlying immune suppression by UC-MSCs are still unclear. We studied the mechanism of inhibition by UC-MSCs during the differentiation of monocytes into DCs and focused on the specific source and the role of the involved cytokines. We found that UC-MSCs suppressed monocyte differentiation into DCs and instructed monocytes towards other cell types, with clear decreases in the expression of co-stimulatory molecules, in the secretion of inflammatory factors and in allostimulatory capacity...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27916686/altered-cytokine-profile-pain-sensitivity-and-stress-responsivity-in-mice-with-co-disruption-of-the-developmental-genes-neuregulin-1%C3%A3-disc1
#6
Lieve Desbonnet, Rachel Cox, Orna Tighe, Donna Lai, Richard P Harvey, John L Waddington, Colm M P O'Tuathaigh
The complex genetic origins of many human disorders suggest that epistatic (gene×gene) interactions may contribute to a significant proportion of their heritability estimates and phenotypic heterogeneity. Simultaneous disruption of the developmental genes and schizophrenia risk factors Neuregulin-1 (NRG1) and Disrupted-in-schizophrenia 1 (DISC1) in mice has been shown to produce disease-relevant and domain-specific phenotypic profiles different from that observed following disruption of either gene alone. In the current study, anxiety and stress responsivity phenotypes in male and female mutant mice with simultaneous disruption of DISC1 and NRG1 were examined...
December 1, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27914470/symptom-profiles-and-inflammatory-markers-in-moderate-to-severe-copd
#7
Huong Q Nguyen, Jerald R Herting, Kenneth C Pike, Sina A Gharib, Gustavo Matute-Bello, Soo Borson, Ruth Kohen, Sandra G Adams, Vincent S Fan
BACKGROUND: Physical and psychological symptoms are the hallmark of patients' subjective perception of their illness. The purpose of this analysis was to determine if patients with COPD have distinctive symptom profiles and to examine the association of symptom profiles with systemic biomarkers of inflammation. METHODS: We conducted latent class analyses of three physical (dyspnea, fatigue, and pain) and two psychological symptoms (depression and anxiety) in 302 patients with moderate to severe COPD using baseline data from a longitudinal observational study of depression in COPD...
December 3, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27910810/production-of-tnf-alpha-ex-vivo-is-predictive-of-an-immune-response-to-flu-vaccination-in-a-frail-elderly-population
#8
Frédéric Bloch, Bénédicte Charmeteau, Michael Tovey, Jean-François Meritet, Corinne Desaint, Odile Launay, Pierre Lebon
OBJECTIVE: To investigate the relationship between the response to influenza vaccination and the ability to produce proinflamatory cytokines in elderly subjects. METHODS: Whole blood samples from 25 elderly subjects collected before influenza vaccination were stimulated with the influenza vaccine in order to evaluate the secretion of five specific cytokines: TNFα, IFNα, IFNγ, IL2 and IL10. The results were correlated with the increased HAI antibody titres two weeks after vaccination...
September 1, 2016: European Cytokine Network
https://www.readbyqxmd.com/read/27910763/il10-a-tale-of-an-evolutionarily-conserved-cytokine-across-vertebrates
#9
M Carla Piazzon, George Lutfalla, Maria Forlenza
IL10 was discovered in 1989, and since then it has been the subject of intense investigation, which has revealed its potent anti-inflammatory and regulatory activities in most immune processes during infection and disease. In 2003, the first non-mammalian IL10 sequence was identified in teleost fish, followed in 2004 by the chicken IL10 sequence. In this review, we summarize the work performed in non-mammalian vertebrates in which the IL10, IL10 receptors (IL10Rs), and their signaling components have been identified...
2016: Critical Reviews in Immunology
https://www.readbyqxmd.com/read/27902779/differential-cytokine-gene-expression-in-granulomas-from-lungs-and-lymph-nodes-of-cattle-experimentally-infected-with-aerosolized-mycobacterium-bovis
#10
Mitchell V Palmer, Tyler C Thacker, W Ray Waters
The hallmark lesion of tuberculosis in humans and animals is the granuloma. The granuloma represents a distinct host cellular immune response composed of epithelioid macrophages, lymphocytes, and multinucleated giant cells, often surrounding a caseous necrotic core. Within the granuloma, host-pathogen interactions determine disease outcome. Factors within the granulomas such as cytokines and chemokines drive cell recruitment, activity, function and ultimately the success or failure of the host's ability to control infection...
2016: PloS One
https://www.readbyqxmd.com/read/27893414/recombinant-haemonchus-contortus-24-kda-excretory-secretory-protein-rhces-24-modulate-the-immune-functions-of-goat-pbmcs-in-vitro
#11
Javaid Ali Gadahi, Baojie Li, Muhammad Ehsan, Shuai Wang, Zhenchao Zhang, Yujian Wang, Muhammad Waqqas Hasan, Ruofeng Yan, Xiaokai Song, Lixin Xu, Xiangrui Li
A 24 kDa protein is one of the important components in Haemonchus contortus (barber pole worm) excretory/secretory products (HcESPs), which was shown to have important antigenic function. However, little is known about the immunomodulatory effects of this proteinon host cell. In the present study gene encoding 24kDa excretory/secretory protein (HcES-24) was cloned. The recombinant protein of HcES-24 (rHcES-24) was expressed in a histidine-tagged fusion protein soluble form in Escherichia coli. Binding activity of rHcES-24 to goat PBMCs was confirmed by immunofluorescence assay (IFA) and its immunomudulatory effect on cytokine secretion, cell proliferation, cell migration and nitric oxide production were observed by co-incubation of rHcES-24...
November 21, 2016: Oncotarget
https://www.readbyqxmd.com/read/27892860/microvascular-lesions-and-changes-in-cell-proliferation-and-death-and-cytokine-expression-in-the-placentas-of-mice-experimentally-infected-with-equid-herpesvirus-1
#12
C N Zanuzzi, M E Bravi, M R Scrochi, F Nishida, N A Fuentealba, M E Diessler, H G Sguazza, C I Muglia, E J Gimeno, E L Portiansky, C G Barbeito, C M Galosi
This study describes the changes observed in the placentas of mice experimentally infected with an abortigenic strain of EHV-1 at mid-pregnancy and euthanized at days 3 and 4 post-infection. We analyzed microscopic vascular alterations, cell proliferation and death by immunohistochemistry, and the expression of IFN-γ, TNF-α and the IL-10 by qPCR and flow cytometry. Infected mice showed slight respiratory signs and ruffled fur during the first two days post-infection. Virus isolation and DNA detection were positive only in the lungs of the infected mice...
September 14, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27890932/il-10-production-by-cll-cells-is-enhanced-in-the-anergic-ighv-mutated-subset-and-associates-with-reduced-dna-methylation-of-the-il10-locus
#13
S Drennan, A D'Avola, Y Gao, C Weigel, E Chrysostomou, A J Steele, T Zenz, C Plass, P W Johnson, A P Williams, G Packham, F K Stevenson, C C Oakes, F Forconi
Chronic lymphocytic leukemias (CLL) with unmutated (U-CLL) or mutated (M-CLL) IGHV have variable features of immunosuppression, possibly influenced by those CLL cells activated to produce IL-10. The two subsets differ in their levels of anergy, defined by low surface IgM levels/signaling capacity, and in their DNA methylation profile, particularly variable in M-CLL. We have now found that levels of IL-10 produced by activated CLL cells were highly variable. Levels were higher in M-CLL than in U-CLL and correlated with anergy...
November 28, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27889684/human-milk-oligosaccharide-effects-on-intestinal-function-and-inflammation-after-preterm-birth-in-pigs
#14
Stine O Rasmussen, Lena Martin, Mette V Østergaard, Silvia Rudloff, Michael Roggenbuck, Duc Ninh Nguyen, Per T Sangild, Stine B Bering
: Human milk oligosaccharides (HMOs) may mediate prebiotic and anti-inflammatory effects in newborns. This is particularly important for preterm infants who are highly susceptible to intestinal dysfunction and necrotizing enterocolitis (NEC). We hypothesized that HMO supplementation of infant formula (IF) improves intestinal function, bacterial colonization and NEC resistance immediately after preterm birth, as tested in a preterm pig model. Mixtures of HMOs were investigated in intestinal epithelial cells and in preterm pigs (n=112) fed IF supplemented without (CON) or with a mixture of four HMOs (4-HMO) or >25 HMOs (25-HMO, 5-10 g/L given for 5 or 11 days)...
November 4, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27888067/allele-and-genotype-frequencies-of-polymorphisms-in-cytokine-genes-in-ethnic-russian-individuals-from-moscow-russia
#15
Alexandra Shadrina, Elena Voronina, Igor Zolotukhin, Maxim Filipenko
Two hundred and twenty eight ethnic Russian individuals from Moscow, Russia, were genotyped at 14 single nucleotide polymorphisms CCL2 A-2578G; VEGFA C-2578A, G-634C, and C+936T; TNF G+419A and G-308A; IL1A G-889A; IL1RN T+1018C; IL6 G-174C and G-572C; IFNG T+874A; IL1B C-511T; IL10 A+1082G; TGFB1 C-509T. Genotypes were determined using real-time polymerase chain reaction with TaqMan probes and polymerase chain reaction followed by melting analysis of dual-labeled probe. Genotype distribution was in accordance with Hardy-Weinberg equilibrium for all studied polymorphisms...
November 22, 2016: Human Immunology
https://www.readbyqxmd.com/read/27882241/immune-profile-of-honduran-schoolchildren-with-intestinal-parasites-the-skewed-response-against-geohelminths
#16
José Antonio Gabrie, María Mercedes Rueda, Carol Anahelka Rodríguez, Maritza Canales, Ana Lourdes Sanchez
Soil-transmitted helminth infections typically induce a type-2 immune response (Th2), but no immunoepidemiological studies have been undertaken in Honduras, an endemic country where the main control strategy is children's annual deworming. We aimed to characterize the immune profile of Honduran schoolchildren harbouring these parasitoses. Demographic and epidemiological data were obtained through a survey; nutritional status was assessed through anthropometry; intestinal parasites were diagnosed by formol-ether and Kato-Katz; and blood samples were collected to determine immunological markers including Th1/Th2 cytokines, IgE, and eosinophil levels...
2016: Journal of Parasitology Research
https://www.readbyqxmd.com/read/27871023/association-of-a-novel-gabrg2-splicing-variation-and-a-ptgs2-cox-2-single-nucleotide-polymorphism-with-taiwanese-febrile-seizures
#17
Kun-Long Hung, Jao-Shwann Liang, Jinn-Shyan Wang, Hui-Ju Chen, Li-Ju Lin, Jyh-Feng Lu
Febrile seizure (FS) is the most common type of convulsion in infants and young children. The occurrence of FS in a subset of children with febrile illness suggested genetic factors may have an important effect on the predisposition of the disease. Using targeted next generation sequencing (NGS), a novel splicing variation (NM_198903.2:c.1249-1G>T) was identified in the γ-aminobutyric acid type A (GABA-A) receptor γ2 subunit (GABRG2) gene of a FS patient. To investigate possible association of FS with single nucleotide polymorphisms (SNPs) in prostaglandin-endoperoxide synthase-2 (prostaglandin G/H synthase-2; PTGS2/cyclooxygenase-2; COX2) gene involving in thermoregulatory pathway, eight SNPs, rs689465, rs689466, rs20417, rs13306038, rs201931599, rs689470, rs4648306 and rs4648308, along with 2 previously reported variations in IL1RN (86-bp VNTR) and IL10 (rs1900872) were genotyped and utilized for case-control association studies on 35 FS and 31 non-FS controls...
November 14, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27865949/lost-in-translation-the-potential-psychobiotic-lactobacillus-rhamnosus-jb-1-fails-to-modulate-stress-or-cognitive-performance-in-healthy-male-subjects
#18
John R Kelly, Andrew P Allen, Andriy Temko, William Hutch, Paul J Kennedy, Niloufar Farid, Eileen Murphy, Geraldine Boylan, John Bienenstock, John F Cryan, Gerard Clarke, Timothy G Dinan
BACKGROUND: Preclinical studies have identified certain probiotics as psychobiotics - live microorganisms with a potential mental health benefit. Lactobacillus rhamnosus (JB-1) has been shown to reduce stress-related behaviour, corticosterone release and alter central expression of GABA receptors in an anxious mouse strain. However, it is unclear if this single putative psychobiotic strain has psychotropic activity in humans. Consequently, we aimed to examine if these promising preclinical findings could be translated to healthy human volunteers...
November 16, 2016: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/27859672/immune-activation-and-regulation-related-patterns-in-stable-hand-transplant-recipients
#19
Dorota Kamińska, Katarzyna Kościelska-Kasprzak, Magdalena Krajewska, Adam Chełmoński, Jerzy Jabłecki, Marcelina Żabińska, Marta Myszka, Mirosław Banasik, Maria Boratyńska, Agnieszka Gomółkiewicz, Piotr Dzięgiel, Marian Klinger
We assessed cell subsets and expression of a set of genes related to the T-cell populations in peripheral blood mononuclear cells to elucidate whether immune status of stable hand transplant recipients (HTx) differs from stable kidney transplant recipients (KTx). The study was conducted on five HTx 4.8 ± 1.7 years after transplantation and 30 stable KTx 7.9 ± 2.4 years after transplantation as well as 18 healthy volunteers. The research involved PBMC gene expression analysis of CD4, CD8, CTLA4, GZMB, FOXP3, IL10, IL4, ILR2A, NOTCH, PDCD1, PRF1, TGF-B, and TNF-A genes on a custom-designed low-density array (TaqMan) as well as flow cytometry assessment of lymphocyte subpopulations...
November 9, 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/27859014/cord-blood-streptococcus-pneumoniae-specific-cellular-immune-responses-predict-early-pneumococcal-carriage-in-high-risk-infants-in-papua-new-guinea
#20
Jacinta P Francis, Peter C Richmond, Deborah Strickland, Susan L Prescott, William S Pomat, Audrey Michael, Marie A Nadal-Sims, Catherine J Edwards-Devitt, Patrick G Holt, Deborah Lehmann, Anita H J van den Biggelaar
Background In areas where Streptococcus pneumoniae is highly endemic, infants experience very early pneumococcal colonization of the upper respiratory tract with carriage often persisting into adulthood. We aimed to explore whether newborns in high risk areas have pre-existing pneumococcal-specific cellular immune responses that may affect early pneumococcal acquisition. Methods Cord blood mononuclear cells (CBMC) of 84 Papua New Guinean (PNG; high endemic) and 33 Australian (AUS; low endemic) newborns were stimulated in vitro with detoxified pneumolysin (dPly) or pneumococcal surface protein A (PspA; families 1 and 2) and compared for cytokine responses...
November 18, 2016: Clinical and Experimental Immunology
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