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https://www.readbyqxmd.com/read/29036184/proinflammatory-response-of-canine-trophoblasts-to-brucella-canis-infection
#1
Andrea G Fernández, M Soledad Hielpos, Mariana C Ferrero, Carlos A Fossati, Pablo C Baldi
Brucella canis infection is an important cause of late-term abortion in pregnant bitches. The pathophysiological mechanisms leading to B. canis-induced abortion are unknown, but heavily infected trophoblasts are consistently observed. As trophoblasts responses to other pathogens contribute to placental inflammation leading to abortion, the aim of the present study was to characterize the cytokine response of canine trophoblasts to B. canis infection. To achieve this, trophoblasts isolated from term placenta of healthy female dogs were infected with B...
2017: PloS One
https://www.readbyqxmd.com/read/29033931/plasmodium-berghei-nk65-in-combination-with-ifn-%C3%AE-induces-endothelial-glucocorticoid-resistance-via-sustained-activation-of-p38-and-jnk
#2
Karolina A Zielińska, Lode de Cauwer, Sofie Knoops, Kristof Van der Molen, Alexander Sneyers, Jonathan Thommis, J Brian De Souza, Ghislain Opdenakker, Karolien De Bosscher, Philippe E Van den Steen
Malaria-associated acute respiratory distress syndrome (MA-ARDS) is an often lethal complication of malaria. Currently, no adequate therapy for this syndrome exists. Although glucocorticoids (GCs) have been used to improve clinical outcome of ARDS, their therapeutic benefits remain unclear. We previously developed a mouse model of MA-ARDS, in which dexamethasone treatment revealed GC resistance. In the present study, we investigated GC sensitivity of mouse microvascular lung endothelial cells stimulated with interferon-γ (IFN-γ) and Plasmodium berghei NK65 (PbNK65)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28978870/anthocyanin-cyanidin-3-glucoside-attenuates-platelet-granule-release-in-mice-fed-high-fat-diets
#3
Fang-Hang Zhou, Xiu-Juan Deng, Yan-Qiu Chen, Fu-Li Ya, Xian-Dan Zhang, Fenglin Song, Dan Li, Yan Yang
Platelet granule release is considered an important target for preventing and treating cardiovascular diseases (CVDs). Cyanidin-3-glucoside (Cy-3-g) is a predominant bioactive anthocyanin compound in many edible plants and has been reported to be protective against CVDs by attenuating platelet dysfunction. However, direct evidence of the action of Cy-3-g on platelet granule secretion in purified platelets from in vivo assays is still poor. In the present study, we demonstrated that dietary supplementation of purified Cy-3-g reduces serum lipid levels and facilitates down-regulation of the platelet granule release of substances such as P-selectin, CD40L, 5-HT, RANTES and TGF-β1 in gel-filtered platelets, in addition to attenuating serum PF4 and β-TG levels in mice fed high-fat diets...
2017: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/28973330/prehematopoietic-stem-cell-transplantation-tear-cytokines-as-potential-susceptibility-biomarkers-for-ocular-chronic-graft-versus-host-disease
#4
Lidia Cocho, Itziar Fernández, Margarita Calonge, Maite Sainz de la Maza, Montserrat Rovira, Michael E Stern, Carmen Garcia-Vazquez, Amalia Enríquez-de-Salamanca
Purpose: To determine if cytokine tear levels before hematopoietic stem cell transplantation (HSCT) can help anticipate the occurrence of ocular chronic graft-versus-host disease (cGVHD). Methods: In this pilot study, 25 patients undergoing HSCT were followed prospectively for ≤43 months. After ocular examinations, tears were collected before HSCT. Levels of 19 cytokines (epidermal growth factor [EGF], eotaxin 1/CCL11, fractalkine/CX3CL1, IL-1Ra, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-8/CXCL8, IL-10, IL-12p70, IL-13, IL-17A, IP-10/CXCL10, IFN-γ, VEGF, TNF-α, and RANTES/CCL5) were measured by multiplex bead assay...
September 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28970014/impact-of-mast-cells-in-mucosal-immunity-of-intestinal-inflammation-inhibitory-effect-of-il-37
#5
REVIEW
Pio Conti, Alessandro Caraffa, Gianpaolo Ronconi, Spiros K Kritas, Filiberto Mastrangelo, Lucia Tettamanti, Theoharis C Theoharides
Mast cells (MCs) are implicated in an array of diseases, especially those involving a mucosal surface, including intestine. On appropriate activation from cytoplasmatic granules, MCs release preformed chemical mediators and generate inflammatory lipids and cytokines/chemokines. Intracellular signal and Lyn activation pathways can cause the degranulation of MCs and the generation of lipid mediators and cytokines/chemokines. MCs undergo maturation and polarization in gut mucosal surfaces where they are constitutively present, and can alter intestinal permeability, an important factor in many inflammatory mucosal disorders including autoimmune diseases...
September 29, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28969616/assessment-of-biomarkers-using-multiplex-assays-in-aqueous-humor-of-patients-with-diabetic-retinopathy
#6
Hui Chen, Xiongze Zhang, Nanying Liao, Feng Wen
BACKGROUND: With the high prevalence of type 2 diabetes, diabetic retinopathy (DR) has become a leading health problem worldwide. The pathogenesis of DR is complex and several vascular, inflammatory, and neuronal mechanisms are involved. The purpose of this study was to assess the levels of immune and inflammatory biomarkers in the aqueous humor of patients with different severities of DR and to analyze the correlations between Interleukin-6 (IL-6) and these biomarkers, and between IL-6 and the severity of the disease...
October 2, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28962641/overexpression-of-hypoxia-inducible-factor-1-alpha-improves-immunomodulation-by-dental-mesenchymal-stem-cells
#7
Victor G Martinez, Imelda Ontoria-Oviedo, Carolina P Ricardo, Sian E Harding, Rosa Sacedon, Alberto Varas, Agustin Zapata, Pilar Sepulveda, Angeles Vicente
BACKGROUND: Human dental mesenchymal stem cells (MSCs) are considered as highly accessible and attractive MSCs for use in regenerative medicine, yet some of their features are not as well characterized as other MSCs. Hypoxia-preconditioning and hypoxia-inducible factor 1 (HIF-1) alpha overexpression significantly improves MSC therapeutics, but the mechanisms involved are not fully understood. In the present study, we characterize immunomodulatory properties of dental MSCs and determine changes in their ability to modulate adaptive and innate immune populations after HIF-1 alpha overexpression...
September 29, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28959846/-analgesic-effect-and-central-mechanisms-of-cq-prescription-on-cancer-invasion-induced-mirror-image-pain-in-model-mice
#8
Yu-Mao Jiang, Dan-Dan Sun, Zhi-Guo Wang, Tao Li, Xiao-Liang Zhao, Yue Jiao, Yang Liu, Yu-Juan Li, Jing-Feng Ouyang, Dan-Qiao Wang
This study aimed to analyze the analgesic effect and related central mechanisms of CQ prescription on cancer invasion induced mirror image pain (CIIMIP)in model mice.In the study, male BALB/c mice were randomly divided into normal group, operation control group (injected with 0.2 mL inactivated S180 sarcoma cell sap), model group (injected with 0.2 mL S180 sarcoma cell sap on the right leg near the greater trochanter of femur) and CQ prescription low dose group (intraperitoneally injected with CQ prescription 100 mg•kg⁻¹ on the basis of model mice), CQ prescription middle dose group (intraperitoneally injected with CQ prescription 150 mg•kg⁻¹ on the basis of model mice), and CQ prescription high dose group (intraperitoneally injected with CQ prescription 200 mg•kg⁻¹ on the basis of model mice)...
February 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28954264/basophil-recruitment-to-skin-lesions-of-patients-with-systemic-lupus-erythematosus-mediated-by-ccr1-and-ccr2
#9
Qingjun Pan, Yongmin Feng, Yanxia Peng, Hongjiu Zhou, Zhenzhen Deng, Lu Li, Huanqin Han, Jieping Lin, Lei Shi, Shujun Wang, Ning An, Chen Yang, Hua-Feng Liu
BACKGROUND/AIMS: Basophils have been reported to infiltrate skin lesions in various skin diseases, but not in systemic lupus erythematosus (SLE). This study investigated basophil infiltration in SLE and its mechanism. METHODS: Twenty newly diagnosed SLE patients and twenty healthy controls were enrolled. Nine SLE patients underwent skin biopsies. Flow cytometric analysis the phenotype of peripheral basophils and their migration rate toward RANTES and MCP-1 were analyzed with the transwell culture system, also the expression of these two chemokines in skin tissue were analyzed with immunohistochemistry...
September 28, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28946631/alcohol-misuse-link-to-poems-syndrome-in-a-patient
#10
John Neary, Susan E Goodwin, Lawrence B Cohen, Manuela G Neuman
Previously called Crow-Fukase syndrome, POEMS syndrome is characterized by poly-neuropathy, osteo-sclerotic myeloma, organomegaly, endocrinopathy, monoclonal plasma cell disorder, and skin changes. Extremely elevated levels of serum vascular endothelial growth factor (VEGF) are characteristic of the syndrome. Chronic hepatitis B (HBV) and C (HCV) infections can also be present in POEMS. The pathogenesis of the syndrome is not well understood. The link between chronic alcohol consumption and this malignant condition has not been reported until now...
September 23, 2017: Cancers
https://www.readbyqxmd.com/read/28936426/comparison-of-diabetic-and-non-diabetic-human-leukocytic-responses-to-different-capsule-types-of-klebsiella-pneumoniae-responsible-for-causing-pyogenic-liver-abscess
#11
I Russel Lee, Ethel Sng, Kok-Onn Lee, James S Molton, Monica Chan, Shirin Kalimuddin, Ezlyn Izharuddin, David C Lye, Sophia Archuleta, Yunn-Hwen Gan
The major risk factor for Klebsiella liver abscess (KLA) is type 2 diabetes mellitus (DM), but the immunological mechanisms involved in the increased susceptibility are poorly defined. We investigated the responses of neutrophils and peripheral blood mononuclear cells (PBMCs) to hypervirulent Klebsiella pneumoniae (hvKP), the causative agent of KLA. DNA and myeloperoxidase levels were elevated in the plasma of KLA patients compared to uninfected individuals indicating neutrophil activation, but diabetic status had no effect on these neutrophil extracellular trap (NET) biomarkers in both subject groups...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28935574/taurocholate-induces-biliary-differentiation-of-liver-progenitor-cells-causing-hepatic-stellate-cell-chemotaxis-in-the-ductular-reaction-role-in-pediatric-cystic-fibrosis-liver-disease
#12
Katarzyna N Pozniak, Michael A Pearen, Tamara N Pereira, Cynthia Sm Kramer, Priyakshi Kalita-De Croft, Sujeevi K Nawaratna, Manuel A Fernandez-Rojo, Geoffrey N Gobert, Janina Ee Tirnitz-Parker, John K Olynyk, Ross W Shepherd, Peter J Lewindon, Grant A Ramm
Cystic fibrosis liver disease (CFLD) in children causes progressive fibrosis leading to biliary cirrhosis, however its cause(s) and early pathogenesis are unclear. We hypothesised that a bile acid-induced Ductular Reaction (DR) drives fibrogenesis. We evaluated the DR by cytokeratin-7 immunohistochemistry in liver biopsies, staged for fibrosis, from 60 children with CFLD and demonstrated that the DR was significantly correlated with hepatic fibrosis stage and biliary taurocholate levels. To examine the mechanisms involved in DR induction liver progenitor cells (LPCs) were treated with taurocholate and key events in DR evolution were assessed: LPC proliferation, LPC biliary differentiation and hepatic stellate cell (HSC) chemotaxis...
September 18, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28934227/hemorrhage-enhances-cytokine-complement-component-3-and-caspase-3-and-regulates-micrornas-associated-with-intestinal-damage-after-whole-body-gamma-irradiation-in-combined-injury
#13
Juliann G Kiang, Joan T Smith, Marsha N Anderson, Thomas B Elliott, Paridhi Gupta, Nagaraja S Balakathiresan, Radha K Maheshwari, Barbara Knollmann-Ritschel
Hemorrhage following whole-body γ-irradiation in a combined injury (CI) model increases mortality compared to whole-body γ-irradiation alone (RI). The decreased survival in CI is accompanied by increased bone marrow injury, decreased hematocrit, and alterations of miRNA in the kidney. In this study, our aim was to examine cytokine homeostasis, susceptibility to systemic bacterial infection, and intestinal injury. More specifically, we evaluated the interleukin-6 (IL-6)-induced stress proteins including C-reactive protein (CRP), complement 3 (C3), Flt-3 ligand, and corticosterone...
2017: PloS One
https://www.readbyqxmd.com/read/28929009/meta-analysis-of-biomarkers-for-severe-dengue-infections
#14
Kuan-Meng Soo, Bahariah Khalid, Siew-Mooi Ching, Chau Ling Tham, Rusliza Basir, Hui-Yee Chee
BACKGROUND: Dengue viral infection is an acute infection that has the potential to have severe complications as its major sequela. Currently, there is no routine laboratory biomarker with which to predict the severity of dengue infection or monitor the effectiveness of standard management. Hence, this meta-analysis compared biomarker levels between dengue fever (DF) and severe dengue infections (SDI) to identify potential biomarkers for SDI. METHODS: Data concerning levels of cytokines, chemokines, and other potential biomarkers of DF, dengue hemorrhagic fever, dengue shock syndrome, and severe dengue were obtained for patients of all ages and populations using the Scopus, PubMed, and Ovid search engines...
2017: PeerJ
https://www.readbyqxmd.com/read/28918646/depletion-of-gut-resident-ccr5-cells-for-hiv-cure-strategies
#15
David Patrick Merriam, Connie Chen, Gema Mendez-Lagares, Kenneth Rogers, Anthony Michaels, Jiangli Yan, Paul Casaz, Keith Reimann, Francois Villenger, Dennis J Hartigan-O'Connor
The HIV reservoir forming at the earliest stages of infection is likely composed of CCR5+ cells, because these cells are the targets of transmissible virus. Restriction of the CCR5+ reservoir, particularly in gut, may be needed for subsequent cure attempts. Strategies for killing or depleting CCR5+ cells have been described, but none have been tested in vivo in non-human primates and the extent of achievable depletion from tissues is not known. Here we investigate the efficacy of two novel cytotoxic treatments for targeting and eliminating CCR5+ cells in young rhesus macaques...
September 17, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28910745/mir-200bc-429-cluster-alleviates-inflammation-in-iga-nephropathy-by-targeting-tweak-fn14
#16
Yong Guo, Yuanjiang Liao
Immunoglobulin A nephropathy (IgAN) is one of the most common glomerular diseases worldwide. Various studies have identified a host of microRNAs (miRNAs) abnormally expressed in IgAN and might affect the pathogenesis and progression of IgAN. However, miR-200bc/429 cluster in the pathopoiesis of IgAN remains poorly understood. For this study, we found that miR-200bc/429 cluster is downregulated in IgAN tissues and IgAN podocytes and HK2 cells compared with their matched controls respectively. In addition, overexpression of miR-200bc/429 cluster in IgAN podocytes and HK2 cells could attenuate the release of inflammatory cytokines MCP-1, IL-6 and RANTES...
November 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28899730/a-green-tea-polyphenol-epigallocatechin-3-gallate-enhances-neuroregeneration-after-spinal-cord-injury-by-altering-levels-of-inflammatory-cytokines
#17
Lucia Machova Urdzikova, Jiri Ruzicka, Kristyna Karova, Anna Kloudova, Barbora Svobodova, Anubhav Amin, Jana Dubisova, Meic Schmidt, Sarka Kubinova, Meena Jhanwar-Uniyal, Pavla Jendelova
Spinal cord injury (SCI) is a debilitating condition which is characterized by an extended secondary injury due to the presence of inflammatory local milieu. Epigallocatechin gallate (EGCG) appears to possess strong neuroprotective properties. Here, we evaluated the beneficial effect of EGCG on recovery from SCI. Male Wistar rats were given either EGCG or saline directly to the injured spinal cord and thereafter a daily IP injection. Behavior recovery was monitored by BBB, plantar, rotarod and flat-beam tests...
September 9, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28899503/salicylate-based-phytopharmaceuticals-induce-adaptive-cytokine-and-chemokine-network-responses-in-human-fibroblast-cultures
#18
Gudrun Ulrich-Merzenich, Frederik Hartbrod, Olaf Kelber, Jürgen Müller, Anna Koptina, Heike Zeitler
BACKGROUND: Cytokines and chemokines (CC) play a central role in immunoregulatory and inflammatory processes. Neutralising antibodies for single proinflammatory cytokines have developed into a powerful, though expensive and not always curative therapeutic strategy for severe diseases. Considering the redundancy of CC functions, network (N) rather than single target approaches are essential. Phytopharmaceuticals, common adjuvant therapies, are known modulators of a broad spectrum of CCs, but as complex mixtures with multiple targets they have not been systematically investigated...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28894190/novel-detection-of-post-translational-modifications-in-human-monocyte-derived-dendritic-cells-after-chronic-alcohol-exposure-role-of-inflammation-regulator-h4k12ac
#19
Tiyash Parira, Gloria Figueroa, Alejandra Laverde, Gianna Casteleiro, Mario E Gomez Hernandez, Francisco Fernandez-Lima, Marisela Agudelo
Previous reports on epigenetic mechanisms involved in alcohol abuse have focus on hepatic and neuronal regions, leaving the immune system and specifically monocyte-derived dendritic cells (MDDCs) understudied. Our lab has previously shown histone deacetylases are modulated in cells derived from alcohol users and after in vitro acute alcohol treatment of human MDDCs. In the current study, we developed a novel screening tool using matrix assisted laser desorption ionization-fourier transform-ion cyclotron resonance mass spectrometry (MALDI-FT-ICR MS) and single cell imaging flow cytometry to detect post-translational modifications (PTMs) in human MDDCs due to chronic alcohol exposure...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28880378/leukocyte-and-plasma-activation-profiles-in-chronically-transfused-patients-with-a-history-of-allergic-reactions
#20
Magali J Fontaine, Hank Shih, Richard Schubert, Wendy Wong, Jennifer Andrews, Michael Jeng, Rabindra Tirouvanziam
BACKGROUND: Allergic transfusion reactions are drawbacks to the benefits of transfusion. Classically, allergic transfusion reactions depend on histamine release from mast cells or basophils, but other leukocyte subsets may also be important. Thus, we propose to better define the exact leukocyte subsets involved in allergic transfusion reactions. STUDY DESIGN AND METHODS: The overall objective of the current study was to compare the activation of specific peripheral blood leukocyte subsets (monocytes, neutrophils, eosinophils, and basophils) in a cohort of 13 patients who received chronic transfusions and had a history of allergic transfusion reactions compared with a control group of patients who received chronic transfusions and had no history of allergic transfusion reactions...
September 6, 2017: Transfusion
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