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https://www.readbyqxmd.com/read/28640776/early-fever-after-trauma-does-it-matter
#1
Holly E Hinson, Susan Rowell, Cynthia Morris, Amber L Lin, Martin A Schreiber
BACKGROUND: Fever is strongly associated with poor outcome after traumatic brain injury (TBI). We hypothesized that early fever is a direct result of brain injury and thus would be more common in TBI than in patients without brain injury, and associated with inflammation. METHODS: We prospectively enrolled patients with major trauma with and without TBI from a busy level I trauma center ICU. Patients were assigned to one of four groups based on their presenting Head Abbreviated Injury Severity Scale scores (HAIS): Polytrauma: Head AIS score >2, one other region>2, Isolated Head: Head AIS score>2, all other regions <3, Isolated Body: One region >2, excluding Head/Face, Minor Injury: No region with AIS>2...
June 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28636560/lipocalin-2-regulates-intestine-bacterial-survival-by-interplaying-with-siderophore-in-a-weaned-piglet-model-of-escherichia-coli-infection
#2
Bing-Xiu Guo, Qian-Qian Wang, Jia-Hui Li, Zhen-Shun Gan, Xiao-Feng Zhang, Yi-Zhen Wang, Hua-Hua Du
Iron is an essential nutrient that facilitates cell proliferation and growth, which plays a pivotal role in modulating the battle for survival between mammalian hosts and their pathogens. Pathogenic bacteria secrete siderophores to acquire iron from the host. However, lipocalin 2 (Lcn2), a siderophore-binding antimicrobial protein, binds to siderophores to prevent bacterial uptake of iron, which is critical for the control of systemic infection with Escherichia coli (E. coli). But few studies focus on the anti-infective response of Lcn2 in the intestines by inhibiting bacterial proliferation based on microbial iron metabolism...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636167/berberine-ameliorates-collagen-induced-arthritis-in-rats-by-suppressing-th17-cell-responses-via-inducing-cortistatin-in-the-gut
#3
Mengfan Yue, Yufeng Xia, Can Shi, Chunge Guan, Yunfan Li, Rui Liu, Zhifeng Wei, Yue Dai
Berberine, an isoquinoline alkaloid, has been reported to ameliorate various autoimmune diseases including rheumatoid arthritis by oral administration. However, its mechanism remains mysterious due to an extremely low bioavailability. The fact that berberine is easy to accumulate in gut, the largest endocrine organ in the body, attracts us to explore its anti-arthritic mechanism in view of the induction of intestinal immunosuppressive neuropeptides. In this study, berberine (200 mg/kg, i.g.) was shown to ameliorate collagen-induced arthritis in rats, which was manifested by the reduction of clinical signs and joint destruction, as well as marked down-regulation of Th17 cell frequency and IL-17 level in blood...
June 21, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28635548/th-17-regulatory-cytokines-il-21-il-23-and-il-6-enhance-neutrophil-production-of-il-17-cytokines-during-asthma
#4
Rabih Halwani, Asma Sultana, Alejandro Vazquez-Tello, Amer Jamhawi, Abeer A Al-Masri, Saleh Al-Muhsen
BACKGROUND: In a subset of severe asthma patients, chronic airway inflammation is associated with infiltration of neutrophils, Th-17 cells and elevated expression of Th-17-derived cytokines (e.g., interleukin [IL]-17, IL-21, IL-22). Peripheral neutrophils from allergic asthmatics are known to express higher IL-17 cytokine levels than those from healthy subjects, but the regulatory mechanisms involved are not well understood. We hypothesize that Th-17 regulatory cytokines could modulate IL-17 expression in neutrophils...
March 2, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28634479/whole-blood-profiling-of-bacillus-calmette-gu%C3%A3-rin-induced-trained-innate-immunity-in-infants-identifies-epidermal-growth-factor-il-6-platelet-derived-growth-factor-ab-bb-and-natural-killer-cell-activation
#5
Steven G Smith, Johanneke Kleinnijenhuis, Mihai G Netea, Hazel M Dockrell
Vaccination of infants with bacillus Calmette-Guérin (BCG) activates both the innate and adaptive arms of the immune response. The antimycobacterial effects of these responses most likely account for the ability of BCG to protect against childhood forms of tuberculosis (TB). There is also evidence for a heterologous protective effect of BCG vaccination against TB-unrelated mortality in low birth weight infants. A possible mechanism of action of this effect, the induction of trained innate immunity, has been demonstrated when cells from BCG-vaccinated adults are restimulated in vitro with non-related microbial stimuli...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28633873/elental%C3%A2-amino-acid-component-has-protective-effects-on-primary-cultured-hepatocytes-and-a-rat-model-of-acute-liver-injury
#6
Hirokazu Miki, Katsuji Tokuhara, Masaharu Oishi, Yoshito Tanaka, Richi Nakatake, Yosuke Ueyama, Masaki Kaibori, Mikio Nishizawa, Tadayoshi Okumura, Masanori Kon
Amino acids can exert protective effects on the liver either when administered as a medication or following an operation. In this study, we examined the protective effects of amino acids on the liver using in vitro and in vivo models by studying their influence on the induction of inducible nitric oxide synthase (iNOS) and nitric oxide production as a liver injury marker in cultured hepatocytes and liver-protective effects in d-galactosamine and lipopolysaccharide (GalN/LPS)-treated rats, respectively. Primary cultured rat hepatocytes were treated with interleukin (IL)-1β in the presence or absence of Elental® amino acid component (EleAA; 17 amino acids)...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633806/il-17-for-therapy
#7
REVIEW
Florian C Kurschus, Sonja Moos
The cytokine IL-17 is now a target for an array of therapeutic monoclonal antibodies supposed to treat a variety of inflammatory diseases. The forerunner Secukinumab, an IL-17A neutralizing antibody, is meanwhile approved as first-line treatments for moderate-to-severe plaque psoriasis, and as second-line treatment for psoriatic arthritis and ankylosing spondylitis. Ixekizumab and Brodalumab, both also targeting the IL-17 pathway, were also recently approved by the FDA for plaque psoriasis. Using mice overexpressing IL-17A in a tissue of choice, we showed that the ectopic expression of this cytokine in keratinocytes resulted in a spontaneous and very strong form of psoriasis-like dermatitis...
June 15, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28633757/the-relationship-between-circulating-mitochondrial-dna-and-inflammatory-cytokines-in-patients-with-major-depression
#8
Yuki Kageyama, Takaoki Kasahara, Masaki Kato, Shiho Sakai, Yasuhiko Deguchi, Munehide Tani, Kenji Kuroda, Kotaro Hattori, Sumiko Yoshida, Yuichi Goto, Toshihiko Kinoshita, Koki Inoue, Tadafumi Kato
BACKGROUND: Although inflammatory cytokines are established biomarkers of mood disorders, their molecular mechanism is not known. We hypothesized that circulating mitochondrial DNA (mtDNA) contributes to inflammation and could be used as biomarkers. We investigated if circulating mtDNA level is associated with inflammatory cytokines and can be used as a biomarker of mood disorders. METHODS: Plasma mtDNA concentration was measured with real-time quantitative PCR targeting two regions of the mtDNA and plasma levels of four cytokines (GM-CSF, IL-2, IL-4, and IL-6) were measured with a multiplex immunoassay method in 109 patients with major depressive disorder (MDD)...
June 6, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28633645/generation-of-populations-of-antigen-specific-cytotoxic-t-cells-using-dcs-transfected-with-dna-construct-encoding-her2-neu-tumor-antigen-epitopes
#9
Maria Kuznetsova, Julia Lopatnikova, Julia Khantakova, Rinat Maksyutov, Amir Maksyutov, Sergey Sennikov
BACKGROUND: Recent fundamental and clinical studies have confirmed the effectiveness of utilizing the potential of the immune system to remove tumor cells disseminated in a patient's body. Cytotoxic T lymphocytes (CTLs) are considered the main effectors in cell-mediated antitumor immunity. Approaches based on antigen presentation to CTLs by dendritic cells (DCs) are currently being intensively studied, because DCs are more efficient in tumor antigen presentation to T cells through their initiation of strong specific antitumor immune responses than other types of antigen-presenting cells...
June 20, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28631356/immune-tolerance-effect-in-mesenteric-lymph-node-lymphocytes-of-geniposide-on-adjuvant-arthritis-rats
#10
Zheng-Rong Zhang, Hong Wu, Rong Wang, Shu-Ping Li, Li Dai, Wen-Yu Wang
Rheumatoid arthritis (RA) is a systemic, Th1 cytokine-predominant autoimmune disease result in a chronic and inflammatory disorder. Geniposide (GE), an iridoid glycoside compound that is purified from Gardenia jasminoides Ellis, has antiinflammatory and other immunoregulatory effects, but its exact mechanism of actions on RA is unknown. The aim of this study was to elucidate antiinflammation effects of GE on adjuvant arthritis (AA) rats and its possible immune tolerance mechanisms. Male Sprague-Dawley rats were administered with GE (30, 60, and 120 mg/kg) orally from day 17 to 24 after immunization...
June 19, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28630387/assessment-of-t-helper-17-associated-cytokines-in-third-trimester-of-pregnancy
#11
Tahereh Poordast, Fateme Sadat Najib, Rasoul Baharlou, Atena Bijani, Shaghayegh Moradi Alamdarloo, Alieh Poordast
BACKGROUND: Preeclampsia is a common pregnancy-specific disorder associated with significant maternal and fetal morbidity and mortality worldwide. It has been proposed that the imbalance between two CD4+ T cell subtypes, regulatory T cells (Treg) and T-helper 17 cells (Th17), is involved in the pathophysiology of preeclampsia. OBJECTIVES: To determine the serum levels of IL-17, IL-21, IL-23 and TGF-β in patients with preeclampsia. METHODS: Blood samples were collected from 30 preeclampsia patients, 30 normotensive pregnant women and 30 healthy individuals with no history of malignancies or autoimmune disorders based on simple sampling...
June 2017: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/28630384/modulation-of-cd4-t-cell-subsets-by-euphorbia-microciadia-and-euphorbia-osyridea-plant-extracts
#12
Haideh Namdari, Maryam Izad, Zahra Amirghofran
BACKGROUND: Euphorbia plants are traditionally used in folk medicine for infections, inflammation, and cancer. OBJECTIVES: To investigate the effects of the butanolic extracts of Euphorbia micorociadia and Euphorbia osyridea on specific transcription factors and cytokines expression of T cell subsets. METHODS: Activated mouse splenocytes were cultured in the presence of non-cytotoxic concentrations of the extracts. Cells were evaluated for the gene expressions of T cell transcription factors and cytokines of T helper (Th)1 [T-bet and interferon gamma (IFNγ)], Th17 [retinoic acid receptor related orphan receptor (RORγt) and interleukin (IL)-17], and T regulatory (Treg) cells [forkhead box P3(Foxp3), IL-10, and Transforming growth factor (TGF)-β] using real-time PCR...
June 2017: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/28630185/in-vivo-biomarker-analysis-of-intranasally-dosed-pc945-a-novel-antifungal-triazole-on-aspergillus-fumigatus-infection-in-immunocompromised-mice
#13
Genki Kimura, Takahiro Nakaoki, Thomas Colley, Garth Rapeport, Pete Strong, Kazuhiro Ito, Yasuo Kizawa
PC945 is a novel triazole optimised for lung delivery and the objective of this study is to determine the effects of intranasally dosed PC945 on Aspergillus fumigatus infection and associated biomarkers in immunocompromised mice. PC945, posaconazole or voriconazole was treated intranasally once daily on days 0 to 3 (early intervention) or days 1 to 3 (late intervention) post-infection in temporarily neutropenic A/J mice infected intranasally with A. fumigatus, and bronchoalveolar lavage fluid (BALF) and serum were collected on day 3...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28629745/exposure-to-non-microbial-n-glycolylneuraminic-acid-protects-farmers-children-against-airway-inflammation-and-colitis
#14
Remo Frei, Ruth Ferstl, Caroline Roduit, Mario Ziegler Dipl-Ing, Elisa Schiavi, Weronika Barcik, Noelia Rodriguez-Perez, Oliver F Wirz, Marcin Wawrzyniak, Benoit Pugin, Dirk Nehrbass, Marek Jutel, Sylwia Smolinska, Patrycja Konieczna, Christian Bieli, Susanne Loeliger, Marco Waser, Göran Pershagen, Josef Riedler, Martin Depner, Bianca Schaub, Jon Genuneit, Harald Renz, Juha Pekkanen, Anne M Karvonen, Jean-Charles Dalphin, Marianne van Hage, Gert Doekes, Mübeccel Akdis, Charlotte Braun-Fahrländer, Cezmi A Akdis, Erika von Mutius, Liam O'Mahony, Roger P Lauener
BACKGROUND: Childhood exposure to a farm environment has been shown to protect against the development of inflammatory diseases such as allergy, asthma, and inflammatory bowel disease. OBJECTIVE: We sought to investigate whether besides exposure to microbes also exposure to structures of non-microbial origin such as the sialic acid N-Glycolylneuraminic acid (Neu5Gc) may play a significant role. METHODS: Exposure to Neu5Gc was evaluated by quantifying anti-Neu5Gc antibody levels in the sera of children enrolled in two farm studies: the PARSIFAL study (n=299) and the PASTURE birth cohort (cord blood (n=836), 1 year (n=734), 4...
June 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28627972/immunomodulatory-effects-of-cigarette-smoke-condensate-in-mouse-macrophage-cell-line
#15
Junwei Zhao, Xiang Li, Fuwei Xie, Zhihua Yang, Xiujie Pan, Maoxiang Zhu, Pingping Shang, Cong Nie, Huimin Liu, Jianping Xie
Increasing evidence has demonstrated that the secretion of cytokines may be associated with cigarette smoke-induced immunomodulatory effects, but a comprehensive analysis of the cytokine profile for cigarette smoke condensate (CSC) exposure is lacking. The aims of this study were to (1) examine the release of 20 cytokines induced by CSC from 12 brands of cigarettes in macrophages cells (Ana-1) and (2) to investigate the general characteristics of the immunomodulatory effects of CSC. Luminex technology was used to simultaneously determine the levels of 20 cytokines (interleukin (IL)-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-10, IL-12, IL-13, IL-17, granulocyte-macrophage colony-stimulating factor (GM-CSF), interferon-γ (IFN-γ), keratinocyte-derived Chemokine (KC), monocyte chemoattractant protein 1 (MCP-1), macrophage inflammatory protein 1α (MIP-1α), induced protein 10 (IP-10), tumor necrosis factor α (TNF-α), vascular endothelial growth factor (VEGF), monkine inducible by γ interferon (MIG), and fibroblast growth factor (FGF)-basic) in the supernatants from Ana-1 cells treated with the CSC...
June 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/28627588/il%C3%A2-22-expression-is-increased-variedly-in-the-initial-phase-onset-and-chronic-phase-of-a-pristane%C3%A2-induced-arthritis-rat-model
#16
Weikun Hou, Bo Wang, Yan Zhou, Ke Xu, Liesu Meng, Wenhua Zhu, Congshan Jiang, Peng Xu, Shemin Lu
The aim of the present study was to investigate the expression pattern of T helper (Th) 17 and Th22 cell-related factors in a pristane‑induced arthritis (PIA) rat model. PIA rats were divided into the initial phase group [day (D) 6 post‑pristane injection], the onset of clinical arthritis group (D12), the acute arthritis group (D26) and the chronic arthritis group (D70). Rats injected with saline alone were used as the control group. The mRNA expression levels of interleukin (IL)‑17A, IL‑17F, interferon (IFN)‑γ, IL‑22, IL‑22 receptor (R) 1, IL‑22 binding protein (BP) and RAR‑related orphan receptor α were examined in the spleen and/or synovium of the various phases of PIA rats by reverse transcription‑quantitative polymerase chain reaction analysis...
June 9, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28627342/-baicalein-attenuates-acute-lung-injury-induced-by-intestinal-ischemia-reperfusion-via-inhibition-of-nuclear-factor-%C3%AE%C2%BAb-pathway-in-mice
#17
Lei Chu, Fenyong Zhu, Wenjun Zhou, Zhongxiang Du, Jie Li, Xiaohong Wang, Lihui Wang, Anding Liu
OBJECTIVE: To investigate the effects of baicalein (Bai) on acute lung injury (ALI) induced by intestinal ischemia/reperfusion (I/R) and its mechanism in mice. METHODS: Twenty-four male C57BL/6J mice were divided into three groups by random number table: namely sham group, I/R group and Bai+I/R group, with 8 mice in each group. Intestinal I/R induced lung injury model was reproduced by clamping superior mesenteric artery for 90 minutes, followed by reperfusion. Bai (100 mg/kg) was intraperitoneally injected 1 hour before ischemic challenge in the Bai+I/R group...
March 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28625726/pulmonary-administration-of-soluble-antigen-arrays-is-superior-to-antigen-in-treatment-of-experimental-autoimmune-encephalomyelitis
#18
Christopher Kuehl, Sharadvi Thati, Bradley Sullivan, Joshua Sestak, Michael Thompson, Teruna Siahaan, Cory Berkland
Antigen-specific immunotherapy (ASIT) has been used to hyposensitize patients to allergens and offers an enticing approach for attenuating autoimmune diseases. Applying ASIT to mucosal surfaces such as the lungs may engage unique immune response pathways to improve efficacy. Pulmonary delivery of soluble antigen arrays (SAgAs) was explored in mice with experimental autoimmune encephalomyelitis (EAE), a multiple sclerosis model. SAgAs were designed to impede immune response to autoantigen epitopes and are composed of a hyaluronan backbone with peptides PLP139-151 and LABL, a disease-causing proteolipid peptide epitope and an ICAM-1 ligand, respectively...
June 15, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28625263/-bacterial-endotoxin-induced-endothelial-cell-injury-and-calcium-overload-associated-with-toll-like-receptor-and-calcium-signal
#19
Jianguo Xiao, Qing Song, Tanshi Li, Rongju Sun
OBJECTIVE: To explore the effect of toll-like receptor 4 (TLR4), myeloid differentiation protein-2 (MD2), and stromal interaction molecular 1 (STIM1) for regulating human vascular endothelial calcium overload injury and inflammatory reaction induced by bacterial endotoxin (LPS). METHODS: Human umbilical vein endothelial cells (HUVECs) were cultured in Dulbecco's modification of Eagle's medium (DMEM). (1) The levels of TLR4, MD2 and nuclear factor-κB (NF-κB) were detected by reverse transcriotion-polymerase chain reaction (RT-PCR) before and 0...
February 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28625245/-effects-of-different-sedation-regimens-on-sedation-and-inflammatory-response-in-critically-ill-children-with-multiple-trauma
#20
Wenjia Tong, Conglei Song, Danqun Jin, Jingmin Sun, Yating Wang, Daliang Xu
OBJECTIVE: To compare the sedation and anti-inflammatory effects of dexmedetomidine and midazolam on critical ill children with multiple trauma. METHODS: A prospective randomized controlled trial was conducted. Sixty-five critical ill children with multiple trauma admitted to pediatric intensive care unit (PICU) of Anhui Province Children's Hospital from January 2014 to September 2016 were enrolled, who were randomly divided into dexmedetomidine group (33 cases) and midazolam group (32 cases)...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
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