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https://www.readbyqxmd.com/read/29168868/structural-elucidation-and-immunostimulatory-activity-of-a-new-polysaccharide-from-cordyceps-militaris
#1
Sixue Bi, Yongshuai Jing, Qinqin Zhou, Xianjing Hu, Jianhua Zhu, Zhongyi Guo, Liyan Song, Rongmin Yu
A new polysaccharide (CMPB90-1) was isolated from cultured Cordyceps militaris by alkaline extraction. The chemical structure of CMPB90-1 was determined by analysis of physicochemical and spectral data. The backbone of CMPB90-1 is composed of (1→6)-linked α-d-glucopyranosyl and (1→3)-linked α-d-glucopyranosyl residues, with branching at O-6, which consists of (1→4)-linked β-d-mannopyranosyl and (1→6)-linked α-d-glucopyranosyl residues, respectively. β-d-Galactopyranosyl residues is the terminal unit...
November 23, 2017: Food & Function
https://www.readbyqxmd.com/read/29168863/structure-characterization-of-a-novel-polysaccharide-from-hericium-erinaceus-fruiting-bodies-and-its-immunomodulatory-activities
#2
Fangfang Wu, Chunhui Zhou, Dandan Zhou, Shiyi Ou, Xiaoai Zhang, Huihua Huang
A novel polysaccharide fraction (HEP-S) was extracted and isolated from the fruiting bodies of Hericium erinaceus. Structural characterization revealed that HEP-S had an average molecular weight of 1.83 × 10(4) Da and consisted of rhamnose, fucose, mannose, glucose and galactose at a molar ratio of 1.47 : 0.93 : 1.36 : 8.68 : 4.08. Periodate oxidation-Smith degradation and NMR analysis showed that the main linkage types of HEP-S were composed of (1→)-α-d-Glc, (1→3,4)-α-d-Glc, (1→6)-α-d-Gal, (1→3,4)-β-d-Man, (1→3,6)-α-Rha and (1→2)-β-l-Fuc...
November 23, 2017: Food & Function
https://www.readbyqxmd.com/read/29168426/interleukin-18-and-testosterone-levels-in-men-with-metabolic-syndrome
#3
Petya Angelova, Zdravko Kamenov, Adelina Tsakova, Yosif El-Darawish, Haruki Okamura
OBJECTIVE: Interleukin 18 (IL-18) is an adipokine associated with obesity. Data about the relationship of IL-18 to the metabolic syndrome (MS) are still scarce. Low testosterone (T) levels are common in men with MS, but we did not find data about the levels of IL-18 in men with low T. The aim of this study was to determine the levels of IL-18 in men with MS with or without low T. PATIENTS AND METHODS: A total of 251 men were included in the study. Of them 218 had MS (IDF 2005) and they were divided according to their morning total testosterone (TT) level (cutoff 10...
November 23, 2017: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/29168254/ethanol-iris-tenuifolia-extract-reduces-brain-damage-in-a-mouse-model-of-cerebral-ischaemia
#4
Aldarmaa Jalsrai, Annegret Reinhold, Axel Becker
In the previous experiments, the neuroprotective role of Iris tenuifolia Pall. (IT) in the model of middle cerebral artery occlusion (MCAO) was investigated. In addition, the concentrations of the cytokines tumour necrosis factor-alpha and interleukin-6 in blood plasma were measured. It was found that IT administered 1 hr prior to MCAO or immediately after MCAO reduced infarct volume significantly. IT application 1 and 4 hr after MCAO, respectively, was without any effect on infarct volume. There were no significant changes as regards tumour necrosis factor-alpha, whereas interleukin-6 concentrations were increased in blood plasma...
November 23, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29166710/-effects-of-hydrogen-on-the-lung-damage-of-mice-at-early-stage-of-severe-burn
#5
C Qin, Y X Bian, T T Feng, J H Zhang, Y H Yu
Objective: To investigate the effects of hydrogen on the lung damage of mice at early stage of severe burn. Methods: One hundred and sixty ICR mice were divided into sham injury, hydrogen, pure burn, and burn+ hydrogen groups according to the random number table, with 40 mice in each group. Mice in pure burn group and burn+ hydrogen group were inflicted with 40% total body surface area full-thickness scald (hereafter referred to as burn) on the back, while mice in sham injury group and hydrogen group were sham injured...
November 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29166391/early-kinetics-of-serum-interleukine-17a-and-infarct-size-in-patients-with-reperfused-acute-st-elevated-myocardial-infarction
#6
Thomas Bochaton, Nathan Mewton, NDieme Thiam, Fabien Lavocat, Delphine Baetz, Nathalie Dufay, Cyril Prieur, Eric Bonnefoy-Cudraz, Pierre Miossec, Michel Ovize
BACKGROUND: Recently, it was shown that interleukin-17A (IL-17A) is involved in the pathophysiology of reperfusion injury and associated with infarct size (IS) in experimental models of myocardial infarction. Our aim was to evaluate whether the IL-17A serum level and the IL-17A active fraction was correlated with IS in humans. METHODS: 101 patients presenting with a ST-elevated Myocardial Infarction (STEMI) referred for primary percutaneous coronary intervention (PPCI) and 10 healthy controls were included...
2017: PloS One
https://www.readbyqxmd.com/read/29164679/novel-antioxidant-and-anti-inflammatory-peptides-from-the-siamese-crocodile-crocodylus-siamensis-hemoglobin-hydrolysate
#7
Jiraporn Lueangsakulthai, Santi Phosri, Tinnakorn Theansungnoen, Nisachon Jangpromma, Theeranan Temsiripong, John E Mckendrick, Watcharee Khunkitti, Sompong Klaynongsruang
Novel antioxidant and anti-inflammatory peptides were isolated from hydrolysates of Siamese crocodile (Crocodylus siamensis) hemoglobin. Crocodylus siamensis hemoglobin hydrolysates (CHHs) were obtained by pepsin digestion at different incubation times (2, 4, 6 and 8 H) at 37 °C and subjected to antioxidant and anti-inflammatory activity assessment. CHH obtained by 2-H hydrolysis (2H-CHH) showed the highest anti-inflammatory activity with respect to decreasing nitric oxide (NO) production, while the strongest antioxidant activity was found for 6-H hydrolysis (6H-CHH) against nitric oxide radicals...
November 22, 2017: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/29163709/the-anti-hepatocellular-carcinoma-activity-of-mel-p15-is-mediated-by-natural-killer-cells
#8
Tao Xu, Tongxing Cui, Lipan Peng, Shuai Kong, Jianqiang Zou, Xingsong Tian
Mel-P15 is a peptide derived from melittin, the main toxic component in the venom of the European honeybee Apis mellifera. In the present study, the antitumor effects of Mel-P15 and the underlying molecular mechanisms of these effects in vivo were investigated. Mel-P15 directly stimulated natural killer (NK) cell cytotoxicity in vitro, which was increased to 55.45% at a 4 µg/ml dose of Mel-P15. In the mouse liver cancer (H22) xenograft mice model, Mel-P15 suppressed tumor growth in vivo; the tumor inhibitory rate was 61...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29163679/identification-of-molecular-mechanisms-of-glutamine-in-pancreatic-cancer
#9
Zhen-Yi Jia, Tong-Yi Shen, Wei Jiang, Huan-Long Qin
The aim of the present study was to explore the critical genes and molecular mechanisms in pancreatic cancer (PC) cells with glutamine. By analyzing microarray data GSE17632 from the Gene Expression Omnibus database, the DEGs between PC cells treated with glutamine and without glutamine were evaluated. Additionally, function enrichment analyses and protein-protein interaction (PPI) network construction of DEGs were performed. Network module and literature mining analyses were performed to analyze the critical DEGs in PC cells...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29163543/interleukin-6-present-in-inflammatory-ascites-from-advanced-epithelial-ovarian-cancer-patients-promotes-tumor-necrosis-factor-receptor-2-expressing-regulatory-t-cells
#10
Nirmala Chandralega Kampan, Mutsa Tatenda Madondo, Orla M McNally, Andrew N Stephens, Michael A Quinn, Magdalena Plebanski
Background: Epithelial ovarian cancer (EOC) remains a highly lethal gynecological malignancy. Ascites, an accumulation of peritoneal fluid present in one-third of patients at presentation, is linked to poor prognosis. High levels of regulatory T cells (Tregs) in ascites are correlated with tumor progression and reduced survival. Malignant ascites harbors high levels of Tregs expressing the tumor necrosis factor receptor 2 (TNFR2), as well as pro-inflammatory factors such as interleukin 6 (IL-6) and tumor necrosis factor (TNF)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163523/interleukin-5-mediates-parasite-induced-protection-against-experimental-autoimmune-encephalomyelitis-association-with-induction-of-antigen-specific-cd4-cd25-t-regulatory-cells
#11
Giang T Tran, Paul L Wilcox, Lindsay A Dent, Catherine M Robinson, Nicole Carter, Nirupama D Verma, Bruce M Hall, Suzanne J Hodgkinson
Objective: To examine if the protective effect of parasite infection on experimental autoimmune encephalomyelitis (EAE) was due to interleukin (IL)-5, a cytokine produced by a type-2 response that induces eosinophilia. We hypothesize that, in parasite infections, IL-5 also promotes expansion of antigen-specific T regulatory cells that control autoimmunity. Methods: Nippostrongylus brasiliensis larvae were used to infect Lewis rats prior to induction of EAE by myelin basic protein...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163168/atheroregressive-potential-of-the-treatment-with-a-chimeric-monoclonal-antibody-against-sulfated-glycosaminoglycans-on-pre-existing-lesions-in-apolipoprotein-e-deficient-mice
#12
Victor Brito, Katia Mellal, Karina F Zoccal, Yosdel Soto, Liliane Ménard, Roger Sarduy, Lucia H Faccioli, Huy Ong, Ana M Vázquez, Sylvie Marleau
The retention of lipoprotein particles in the intima, in particular to glycosaminoglycan side chains of proteoglycans, is a critical step in atherosclerosis initiation. Administration of chP3R99, a chimeric mouse/human monoclonal antibody inducing an anti-idiotypic network response against glycosaminoglycans was previously shown to prevent atherosclerotic lesion progression, yet its effect in the late-stage progression of lesions remains unknown. This study investigated the effect of chP3R99 at a late stage of disease development in apolipoprotein E-deficient mice and the vascular mechanisms involved...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29162766/production-and-rearing-of-germ-free-x-scid-pigs
#13
Hiromasa Hara, Hiroaki Shibata, Kazuaki Nakano, Tomoyuki Abe, Hideki Uosaki, Takahiro Ohnuki, Shuji Hishikawa, Satoshi Kunita, Masahito Watanabe, Osamu Nureki, Hiroshi Nagashima, Yutaka Hanazono
Pigs with X-linked severe combined immunodeficiency (X-SCID) caused by a mutation of the interleukin-2 receptor gamma chain gene (IL2RG) are of value for a wide range of studies. However, they do not survive longer than 8 weeks because of their susceptibility to infections. To allow longer survival of X-SCID pigs, the animals must be born and reared under germ-free conditions. Here, we established an efficient system for piglet derivation by hysterectomy and used it to obtain and maintain a germ-free X-SCID pig...
November 21, 2017: Experimental Animals
https://www.readbyqxmd.com/read/29161657/effects-of-local-lipopolysaccharide-administration-on-the-expression-of-toll-like-receptor-4-and-pro-inflammatory-cytokines-in-uterus-and-oviduct-of-rabbit-does
#14
Laura Menchetti, Olimpia Barbato, Iulia Elena Filipescu, Giovanna Traina, Leonardo Leonardi, Angela Polisca, Alessandro Troisi, Gabriella Guelfi, Federica Piro, Gabriele Brecchia
Inflammation of the uterus and oviduct is associated with reduced reproductive performance in humans and domestic animals. Toll-like receptors are expressed in various immune and non-immune cells and play a crucial role in innate immunity. Toll-like receptor - 4 (TLR4) can detect lipopolysaccharide (LPS) from Gram-negative bacteria leading to the secretion of pro-inflammatory cytokines, chemokines, antimicrobial peptides and other inflammatory mediators. To investigate the effects of a local inflammation on the expression levels of TLR4 and pro-inflammatory cytokines, 12 female rabbits received an intracervical infusion with either saline solution endotoxin-free (carrier, 2 mL; n = 6) or LPS (500 μg diluted in 2 mL of saline solution; n = 6)...
November 5, 2017: Theriogenology
https://www.readbyqxmd.com/read/29160304/il11-is-a-crucial-determinant-of-cardiovascular-fibrosis
#15
Sebastian Schafer, Sivakumar Viswanathan, Anissa A Widjaja, Wei-Wen Lim, Aida Moreno-Moral, Daniel M DeLaughter, Benjamin Ng, Giannino Patone, Kingsley Chow, Ester Khin, Jessie Tan, Sonia P Chothani, Lei Ye, Owen J L Rackham, Nicole S J Ko, Norliza E Sahib, Chee Jian Pua, Nicole T G Zhen, Chen Xie, Mao Wang, Henrike Maatz, Shiqi Lim, Kathrin Saar, Susanne Blachut, Enrico Petretto, Sabine Schmidt, Tracy Putoczki, Nuno Guimarães-Camboa, Hiroko Wakimoto, Sebastiaan van Heesch, Kristmundur Sigmundsson, See L Lim, Jia L Soon, Victor T T Chao, Yeow L Chua, Teing E Tan, Sylvia M Evans, Yee J Loh, Muhammad H Jamal, Kim K Ong, Kim C Chua, Boon-Hean Ong, Mathew J Chakaramakkil, Jonathan G Seidman, Christine E Seidman, Norbert Hubner, Kenny Y K Sin, Stuart A Cook
Fibrosis is a final common pathology in cardiovascular disease(1). In the heart, fibrosis causes mechanical and electrical dysfunction(1,2) and in the kidney, it predicts the onset of renal failure(3). Transforming growth factor β1 (TGFB1) is the principal pro-fibrotic factor(4,5) but its inhibition is associated with side effects due to its pleiotropic roles(6,7). We hypothesised that downstream effectors of TGFB1 in fibroblasts could be attractive therapeutic targets and lack upstream toxicities. Using integrated imaging-genomics analyses of primary human fibroblasts, we found that Interleukin 11 (IL11) upregulation is the dominant transcriptional response to TGFB1 exposure and required for its profibrotic effect...
November 13, 2017: Nature
https://www.readbyqxmd.com/read/29160122/reduced-soluble-toll-like-receptors-2-in-type-2-diabetes
#16
Emanuela Zaharieva, Tsvetelina Velikova, Adelina Tsakova, Zdravko Kamenov
BACKGROUND: Soluble forms of Toll-like receptors (sTLR) 2 and 4 exert negative regulatory control on membrane-bound receptor activation. The study estimates the sTLR2 and sTLR4's serum levels in type 2 diabetes (T2D) and evaluates their relationship with metabolic and inflammatory parameters. SUBJECTS AND METHODS: Sixty three patients with T2D and 25 controls were enrolled. sTLR were assayed through ELISA. Inflammatory markers included Interleukin 6 (IL-6), high sensitivity C-reactive protein (hs-CRP) and tumour necrosis factor α...
November 21, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29159589/the-effect-of-mindfulness-based-stress-reduction-on-wound-healing-a-preliminary-study
#17
Astrid Meesters, Yvo M C In den Bosch-Meevissen, Chantal A H Weijzen, Wim A Buurman, Mario Losen, Jan Schepers, Monique R T M Thissen, Hugo J E M Alberts, Casper G Schalkwijk, Madelon L Peters
Psychological factors have been shown to influence the process of wound healing. This study examined the effect of Mindfulness-Based Stress Reduction (MBSR) on the speed of wound healing. The local production of pro-inflammatory cytokines and growth factors was studied as potential underlying mechanism. Forty-nine adults were randomly allocated to a waiting-list control group (n = 26) or an 8-week MBSR group (n = 23). Pre- and post-intervention/waiting period assessment for both groups consisted of questionnaires...
November 20, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/29159515/the-effect-of-low-level-laser-therapy-660%C3%A2-nm-on-the-gene-expression-involved-in-tissue-repair
#18
Stheace Kelly Fernandes Szezerbaty, Rodrigo Franco de Oliveira, Deise A A Pires-Oliveira, Cristina Pacheco Soares, Daniele Sartori, Regina Célia Poli-Frederico
The effect of low-level laser therapy (LLLT) on the healing of skin lesions has been evaluated in many studies; however, the molecular mechanisms involved in the biostimulatory effects resulting from this treatment need to be better understood. The paper aims to analyze the effects of LLLT (660 nm) at doses of 1 and 5 J/cm(2) on cell viability and expression of vascular endothelial growth factor (VEGF) and interleukin (IL6) genes in L929 fibroblast cells. The dose-response curve was performed with the GaInAlAs (660 nm) laser-treated cells at energy rates of 1 and 5 J/cm(2)...
November 20, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29159257/development-and-analytical-performance-of-a-new-architect-automated-dipeptidyl-peptidase-4-immunoassay
#19
Philip M Hemken, Nicolette M Jeanblanc, Tracey Rae, Susan E Brophy, Maria J Datwyler, Ying Xu, T Scott Manetz, Inna Vainshtein, Meina Liang, Xiaodong Xiao, Partha S Chowdhury, Chien-Ying Chang, Katie Streicher, Lydia Greenlees, Koustubh Ranade, Gerard J Davis
Background: Dipeptidyl peptidase-4 (DPP-4) may be a suitable biomarker to identify people with severe asthma who have greater activation of the interleukin-13 (IL-13) pathway and may therefore benefit from IL-13-targeted treatments. We report the analytical performance of an Investigational Use Only immunoassay and provide data on the biological range of DPP-4 concentrations. Methods: We assessed assay performance, utilising analyses of precision, linearity and sensitivity; interference from common endogenous assay interferents, and from asthma and anti-diabetic medications, were also assessed...
December 2017: Pract Lab Med
https://www.readbyqxmd.com/read/29159203/varicella-zoster-virus-infected-cerebrovascular-cells-produce-a-proinflammatory-environment
#20
Dallas Jones, C Preston Neff, Brent E Palmer, Kurt Stenmark, Maria A Nagel
Objective: To test whether varicella zoster virus (VZV) infection of human brain vascular cells and of lung fibroblasts directly increases proinflammatory cytokine levels, consistent with VZV as a causative agent in intracerebral VZV vasculopathy and giant-cell arteritis (GCA). Methods: Conditioned supernatant from mock- and VZV-infected human brain vascular adventitial fibroblasts (HBVAFs), human perineurial cells (HPNCs), human brain vascular smooth muscle cells (HBVSMCs), and human fetal lung fibroblasts (HFLs) were collected at 72 hours postinfection and analyzed for levels of 30 proinflammatory cytokines using the Meso Scale Discovery Multiplex ELISA platform...
September 2017: Neurology® Neuroimmunology & Neuroinflammation
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