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https://www.readbyqxmd.com/read/28730707/establishment-and-characterization-of-a-novel-murine-model-of-pancreatic-cancer-cachexia
#1
Katherine A Michaelis, Xinxia Zhu, Kevin G Burfeind, Stephanie M Krasnow, Peter R Levasseur, Terry K Morgan, Daniel L Marks
BACKGROUND: Cachexia is a complex metabolic and behavioural syndrome lacking effective therapies. Pancreatic ductal adenocarcinoma (PDAC) is one of the most important conditions associated with cachexia, with >80% of PDAC patients suffering from the condition. To establish the cardinal features of a murine model of PDAC-associated cachexia, we characterized the effects of implanting a pancreatic tumour cell line from a syngeneic C57BL/6 KRAS(G12D) P53(R172H) Pdx-Cre(+/+) (KPC) mouse...
July 20, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28730509/effect-of-a-2000-m-running-test-on-antioxidant-and-cytokine-response-in-plasma-and-circulating-cells
#2
Lucrecia Carrera-Quintanar, Lorena Funes, Miguel Sánchez-Martos, Pascual Martinez-Peinado, José M Sempere, Antoni Pons, Vicente Micol, Enrique Roche
Exercise intensity usually correlates with increased oxidative stress and enhanced cytokine production. However, it is unknown if all types of exercise that induce muscle damage can cause a parallel response in the oxidation balance and cytokine production. To this end, the effect of a 2000-m running test in a group of volunteers that regularly train in aerobic routines was studied. Different circulating parameters were measured, oxidative stress markers (protein carbonyls and malondialdehyde), antioxidant enzyme activity, and cytokine levels in plasma as well as in the main circulating cells of blood samples obtained in basal conditions and after test execution...
July 20, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28730407/venous-thromboembolism-thrombosis-inflammation-and-immunothrombosis-for-clinicians
#3
REVIEW
Eduardo Vazquez-Garza, Carlos Jerjes-Sanchez, Aline Navarrete, Jorge Joya-Harrison, David Rodriguez
Venous thromboembolism (VTE) is a worldwide disease related with mortality, cardiovascular disability, impaired quality of life and, cause major long-term complications. Clinicians related to the acute and long-term patients care must be involved in the molecular mechanisms of thrombosis. The vessel wall and its inner lining of the endothelium are critical to the maintenance of a patent vasculature. After endothelial disruption, collagen (first line of endothelial defense) and intravascular tissue factor (second line of endothelial defense) are exposed to blood flow, starting the formation of a thrombus...
July 20, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28730179/causal-neuro-immune-relationships-at-patients-with-chronic-pyelonephritis-and-cholecystitis-correlations-between-parameters-eeg-hrv-and-white-blood-cell-count
#4
Andriy B Kul'chyns'kyi, Valeriy M Kyjenko, Walery Zukow, Igor L Popovych
We aim to analyze in bounds KJ Tracey's immunological homunculus conception the relationships between parameters of electroencephalogram (EEG) and heart rate variability (HRV), on the one hand, and the parameters of bhite blood cell count, on the other hand. METHODS: In basal conditions in 23 men, patients with chronic pyelonephritis and cholecystitis in remission, recorded EEG ("NeuroCom Standard", KhAI Medica, Ukraine) and HRV ("Cardiolab+VSR", KhAI Medica, Ukraine). In portion of blood counted up white blood cell count...
2017: Open Medicine (Warsaw, Poland)
https://www.readbyqxmd.com/read/28730145/prokaryotic-rna-associated-to-bacterial-viability-induces-polymorphonuclear-neutrophil-activation
#5
Nahuel Rodriguez-Rodrigues, Luis A Castillo, Verónica I Landoni, Daiana Martire-Greco, M Ayelén Milillo, Paula Barrionuevo, Gabriela C Fernández
Polymorphonuclear neutrophils (PMN) are the first cellular line of antibacterial host defense. They sense pathogens through recognition of pathogen-associated molecular patterns (PAMPs) by innate pattern recognition receptors, such as Toll-like receptors (TLR). The aim of this study was to investigate whether PMN sense bacterial viability and explore which viability factor could be involved in this phenomenon. For this purpose, different functions were evaluated in isolated human PMN using live Escherichia coli (Ec) and heat-killed Ec (HK-Ec)...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28728455/asparagine-preserves-intestinal-barrier-function-from-lps-induced-injury-and-regulates-crf-crfr-signaling-pathway
#6
Huiling Zhu, Dingan Pi, Weibo Leng, Xiuying Wang, Chien-An Andy Hu, Yongqing Hou, Jianglin Xiong, Chunwei Wang, Qin Qin, Yulan Liu
Stress causes intestinal inflammation and barrier dysfunction. Corticotrophin-releasing factor (CRF)/CRF receptor (CRFR) signaling pathway has been shown to be important for stress-induced intestinal mucosal alteration. L-Asparagine (ASN) is a powerful stimulator of ornithine decarboxylase and cell proliferation in a variety of cell types, including colonic cells. In the present study, we investigated whether dietary ASN supplementation could alleviate the damage of intestinal barrier function caused by LPS through modulation of CRF/CRFR signaling pathway...
January 1, 2017: Innate Immunity
https://www.readbyqxmd.com/read/28727131/evaluation-of-the-hematologic-system-as-a-marker-of-subclinical-inflammation-in-hyperemesis-gravidarum-a-case-control-study
#7
Fatma Beyazit, Filiz Halici Öztürk, Eren Pek, Mesut Abdülkerim Ünsal
OBJECTIVES: Current evidence suggests that subclinical inflammation plays a significant role in the development of hyperemesis gravidarum (HEG). Simple hematological markers, such as mean platelet volume (MPV), neutrophil-to-lymphocyte ratio (NLR), and platelet-to-lymphocyte ratio (PLR), have been shown to reflect inflammatory burden and disease activity in several disorders. This study aimed to determine the diagnostic value of these hematological parameters for HEG. MATERIAL AND METHODS: A total of 54 HEG patients and 58 age- and gestational-age-matched control subjects were studied...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28726740/cyclic-peptides-as-novel-therapeutic-microbicides-engineering-of-human-defensin-mimetics
#8
REVIEW
Annarita Falanga, Ersilia Nigro, Margherita Gabriella De Biasi, Aurora Daniele, Giancarlo Morelli, Stefania Galdiero, Olga Scudiero
Cyclic peptides are receiving significant attention thanks to their antimicrobial activity and high serum stability, which is useful to develop and design novel antimicrobial agents. Antimicrobial peptides appear to be key components of innate defences against bacteria, viruses, and fungi. Among the others, defensins possess a strong microbicidial activity. Defensins are cationic and amphipathic peptides with six cysteine residues connected by three disulfide bonds found in plants, insects, and mammals; they are divided in three families: α-, β-, and θ-defensins...
July 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28726269/previous-physical-exercise-alters-hepatic-profile-of-oxidative-inflammatory-status-and-limits-the-secondary-brain-damage-induced-by-severe-tbi-in-rats
#9
Mauro Robson Torres de Castro, Ana Paula de Oliveira Ferreira, Guilherme Lago Busanello, Luís Roberto Hart da Silva, Mauro Eduardo Porto da Silveira Junior, Fernando Fiorin, Gabriela Arrifano, Maria Elena Crespo López, Rômulo Pillon Barcelos, María J Cuevas, Guilherme Bresciani, Javier González-Gallego, Michele Rechia Fighera, Luiz Fernando Freire Royes
Although systemic responses have been described after traumatic brain injury (TBI), little is known regarding potential interactions between brain and peripheral organs after neuronal injury. In this sense, we decided to investigate whether peripheral oxidative/inflammatory response contributes to the neuronal dysfunction after TBI as well as prophylactic role of exercise training. Animals were submitted to fluid percussion injury (FPI) after 6 weeks of swimming training. Previous exercise training increased mRNA expression of X receptor alpha (LXR-α), ATP-binding cassette transporter (ABCA1), and decreased inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), tumor necrosis factor alpha (TNF-α) and interleukin (IL)-6 expression per se in liver...
July 20, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28724795/alx-receptor-ligands-define-a-biochemical-endotype-for-severe-asthma
#10
Isabell Ricklefs, Ioanna Barkas, Melody G Duvall, Manuela Cernadas, Nicole L Grossman, Elliot Israel, Eugene R Bleecker, Mario Castro, Serpil C Erzurum, John V Fahy, Benjamin M Gaston, Loren C Denlinger, David T Mauger, Sally E Wenzel, Suzy A Comhair, Andrea M Coverstone, Merritt L Fajt, Annette T Hastie, Mats W Johansson, Michael C Peters, Brenda R Phillips, Bruce D Levy
BACKGROUND: In health, inflammation resolution is an active process governed by specialized proresolving mediators and receptors. ALX/FPR2 receptors (ALX) are targeted by both proresolving and proinflammatory ligands for opposing signaling events, suggesting pivotal roles for ALX in the fate of inflammatory responses. Here, we determined if ALX expression and ligands were linked to severe asthma (SA). METHODS: ALX expression and levels of proresolving ligands (lipoxin A4 [LXA4], 15-epi-LXA4, and annexin A1 [ANXA1]), and a proinflammatory ligand (serum amyloid A [SAA]) were measured in bronchoscopy samples collected in Severe Asthma Research Program-3 (SA [n = 69], non-SA [NSA, n = 51] or healthy donors [HDs, n = 47])...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28724791/mitochondrial-dna-enriched-microparticles-promote-acute-on-chronic-alcoholic-neutrophilia-and-hepatotoxicity
#11
Yan Cai, Ming-Jiang Xu, Erik H Koritzinsky, Zhou Zhou, Wei Wang, Haixia Cao, Peter St Yuen, Ruth A Ross, Robert A Star, Suthat Liangpunsakul, Bin Gao
Over the last several years, one of the major advances in the field of alcoholic liver disease research was the discovery that binge alcohol consumption induced neutrophilia and hepatic neutrophil infiltration in chronically ethanol-fed mice and human subjects with excessive alcohol use (EAU); however, the underlying mechanisms remain obscure. Here, we demonstrated that chronic EAU patients with a history of recent excessive drinking (EAU + RD) had higher serum levels of mitochondrial DNA (mtDNA)-enriched microparticles (MPs) than EAU without recent drinking (EAU - RD) and healthy controls, which correlated positively with circulating neutrophils...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28724741/body-height-and-immune-efficacy-testing-body-stature-as-a-signal-of-biological-quality
#12
Bogusław Pawłowski, Judyta Nowak, Barbara Borkowska, Daria Augustyniak, Zuzanna Drulis-Kawa
According to the good genes hypothesis and energy allocation theory, human adult body height may reflect biological quality. An important aspect of this quality is immune system functioning (ISF). The aim of this study was to evaluate the relationship between ISF and body height in healthy people. The ISF was determined by several important innate (total complement and lysozyme activity, neutrophil function) and adaptive immune parameters (lymphocytes, IgA and IgG, and response to the flu vaccine). Overall, 96 males and 97 females were subjected to flu vaccination, and of these, 35 males and 34 females were subjected to tetanus...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28724541/stim1-and-stim2-cooperatively-regulate-mouse-neutrophil-store-operated-calcium-entry-and-cytokine-production
#13
Regina A Clemens, Joshua Chong, Derayvia Grimes, Yongmei Hu, Clifford A Lowell
Neutrophils are key effector cells of the innate immune system. Calcium-dependent signaling pathways initiated by store-operated calcium entry (SOCE) are known to regulate neutrophil activation, however the precise mechanism of this process remains unclear. STIM1 and STIM2 are calcium sensing molecules that link calcium depletion of the endoplasmic reticulum with opening of plasma membrane calcium channels. While a role for STIM1 in neutrophil SOCE and activation has been established, the function of STIM2 is unknown...
July 19, 2017: Blood
https://www.readbyqxmd.com/read/28723775/the-neutrophil-to-lymphocyte-ratio-could-be-a-good-diagnostic-marker-and-predictor-of-relapse-in-patients-with-adult-onset-still-s-disease-a-strobe-compliant-retrospective-observational-analysis
#14
Ji-Yeoun Seo, Chang-Hee Suh, Ju-Yang Jung, Ar-Reum Kim, Ji Won Yang, Hyoun-Ah Kim
The neutrophil-to-lymphocyte ratio (NLR) is the proportion of absolute neutrophil count to lymphocytes on routine complete blood count (CBC) tests, and has been studied as a simple marker of the systemic inflammatory response. This study was performed to investigate whether the NLR could be used as a tool to diagnose and predict prognosis in cases of adult-onset Still's disease (AOSD).We retrospectively reviewed 164 patients with suspected AOSD. Among 164 patients with suspected AOSD, 37 patients received another diagnosis (such as viral infection) and were compared with the 127 patients who received a diagnosis of AOSD...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28722240/an-mri-hyperintense-acute-reperfusion-marker-is-related-to-elevated-peripheral-monocyte-count-in-acute-ischemic-stroke
#15
Zurab Nadareishvili, Marie Luby, Richard Leigh, Jignesh Shah, John K Lynch, Amie W Hsia, Richard T Benson, Lawrence L Latour
BACKGROUND AND PURPOSE: Blood-brain barrier (BBB) disruption detected on magnetic resonance imaging (MRI) in acute ischemic stroke as a hyperintense acute reperfusion marker (HARM) is associated with upregulation of matrix metalloproteinase-9 (MMP-9). Although activated leukocytes, including monocytes, are the main source of MMPs, limited data exist to support relationship between leukocyte activation and BBB disruption in patients with acute ischemic stroke. The goal of this study is to investigate the relationship between neutrophils, lymphocytes, and monocytes with BBB disruption detected as HARM (+) in patients with acute ischemic stroke...
July 19, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28721592/construction-purification-and-characterization-of-a-homodimeric-granulocyte-colony-stimulating-factor
#16
Gitana Mickiene, Indre Dalgediene, Zilvinas Dapkunas, Gintautas Zvirblis, Henrikas Pesliakas, Algirdas Kaupinis, Mindaugas Valius, Edita Mistiniene, Milda Pleckaityte
Granulocyte colony-stimulating factor (G-CSF) has found widespread clinical application, and modified forms with improved biopharmaceutical properties have been marketed as well. PEGylation, the covalent modification of G-CSF with polyethylene glycol (PEG), has a beneficial effect on drug properties, but there are concerns connected to the immunogenicity of PEGylated compounds and bioaccumulation of the synthetic polymer. To overcome challenges connected with chemical modifications, we developed fusion proteins composed of two G-CSF molecules connected via different peptide linkers...
July 18, 2017: Molecular Biotechnology
https://www.readbyqxmd.com/read/28721077/food-protein-induced-enterocolitis-syndrome-a-review-of-the-literature-with-focus-on-clinical-management
#17
REVIEW
Marine Michelet, Dominique Schluckebier, Laetitia-Marie Petit, Jean-Christoph Caubet
Food protein-induced enterocolitis syndrome (FPIES) is a potentially severe presentation of non-IgE-mediated gastrointestinal food allergy (non-IgE-GI-FA) with heterogeneous clinical manifestations. Acute FPIES is typically characterized by profuse vomiting and lethargy, occurring classically 1-4 hours after ingestion of the offending food. When continuously exposed to the incriminated food, a chronic form has been described with persistent vomiting, diarrhea, and/or failure to thrive. Although affecting mainly infants, FPIES has also been described in adults...
2017: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/28720716/pi3k%C3%AE-activity-in-leukocytes-promotes-adipose-tissue-inflammation-and-early-onset-insulin-resistance-during-obesity
#18
Ludovic Breasson, Barbara Becattini, Claudia Sardi, Angela Molinaro, Fabio Zani, Romina Marone, Fabrizio Botindari, Mélanie Bousquenaud, Curzio Ruegg, Matthias P Wymann, Giovanni Solinas
The phosphoinositide 3-kinase γ (PI3Kγ) plays a major role in leukocyte recruitment during acute inflammation and has been proposed to inhibit classical macrophage activation by driving immunosuppressive gene expression. PI3Kγ plays an important role in diet-induced obesity and insulin resistance. In seeking to determine the underlying molecular mechanisms, we showed that PI3Kγ action in high-fat diet-induced inflammation and insulin resistance depended largely on its role in the control of adiposity, which was due to PI3Kγ activity in a nonhematopoietic cell type...
July 18, 2017: Science Signaling
https://www.readbyqxmd.com/read/28720648/neutrophil-extracellular-traps-induced-by-cigarette-smoke-activate-plasmacytoid-dendritic-cells
#19
Shi-Lin Qiu, Hui Zhang, Qi-Ya Tang, Jing Bai, Zhi-Yi He, Jian-Quan Zhang, Mei-Hua Li, Jing-Min Deng, Guang-Nan Liu, Xiao-Ning Zhong
BACKGROUND: Neutrophil extracellular traps (NETs) represent a distinct strategy by which neutrophils trap, confine and eliminate invading microorganisms. Emerging evidence suggests that NETs exert a deleterious effect to the host in the absence of microbial stimuli. However, the role of NETs in smoking-related lung diseases remains to be elucidated. OBJECTIVES: To evaluate the formation of NETs in the context of chronic inflammation induced by cigarette smoking and explore its potential role in an experimental mouse model of emphysema...
July 18, 2017: Thorax
https://www.readbyqxmd.com/read/28720358/prognostic-significance-of-neutrophilic-infiltration-in-benign-lymph-nodes-in-patients-with-muscle-invasive-bladder-cancer
#20
Sumanta K Pal, Anh Pham, Winston Vuong, Xueli Liu, Yulan Lin, Nora Ruel, Bertram E Yuh, Kevin Chan, Timothy Wilson, Seth P Lerner, David McConkey, Richard Jove, Wei Liang
BACKGROUND: Preclinical studies suggest that signal transducer and activator of transcription 3 (STAT3)-mediated recruitment of neutrophils to premetastatic tissue occurs prior to metastatic progression. OBJECTIVE: We sought to determine if neutrophilic infiltration in benign nodal tissue is associated with poor clinical outcome in patients with muscle-invasive bladder cancer. DESIGN, SETTING, AND PARTICIPANTS: Formalin-fixed, paraffin-embedded tissue was secured from 55 patients with muscle-invasive bladder cancer who had undergone cystectomy at our institution...
February 2017: European Urology Focus
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