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Inflammation

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https://www.readbyqxmd.com/read/28434172/lactobacillus-paracasei-strain-06tca19-suppresses-inflammatory-chemokine-induced-by-helicobacter-pylori-in-human-gastric-epithelial-cells
#1
Shiro Takeda, Keiji Igoshi, Chuluunbat Tsend-Ayush, Tsendesuren Oyunsuren, Ryoichi Sakata, Yasuhiro Koga, Yuo Arima, Masahiko Takeshita
Helicobacter (H.) pylori infection is an important risk factor for gastric cancer that causes gastric inflammation. Inflammatory chemokines such as interleukin (IL)-8 and regulated on activation normal T cell expressed and secreted (RANTES) are elevated in the gastric mucosa by H. pylori. This study aimed to investigate the effects of Lactobacillus paracasei strain 06TCa19, a probiotic strain, on IL-8 and RANTES expression and production induced by H. pylori using human gastric epithelial cell lines. Strain 06TCa19 was shown to suppress H...
April 22, 2017: Human Cell
https://www.readbyqxmd.com/read/28434169/inflammation-immune-activation-and-antiretroviral-therapy-in-hiv
#2
REVIEW
Corrilynn O Hileman, Nicholas T Funderburg
PURPOSE OF REVIEW: This review focuses on the differential effects of contemporary antiretrovirals on systemic inflammation as heightened immune activation is linked to important co-morbidities and mortality with HIV infection. RECENT FINDINGS: Antiretroviral therapy (ART) reduces dramatically systemic inflammation and immune activation, but not to levels synchronous with HIV-uninfected populations. In one ART initiation trial, integrase inhibitors appear to reduce inflammation to a greater degree than non-nucleoside reverse transcriptase inhibitors (NNRTIs); however, it is not clear that there are beneficial effects on inflammation resulting from treatment with integrase inhibitors compared to PIs, between PIs and NNRTIs, between specific nucleoside reverse transcriptase inhibitors, or with maraviroc in ART-naïve patients...
April 22, 2017: Current HIV/AIDS Reports
https://www.readbyqxmd.com/read/28434120/involvement-of-fas-fasl-pathway-in-the-murine-model-of-atopic-dermatitis
#3
Karolina Bień, Magdalena Żmigrodzka, Piotr Orłowski, Aleksandra Fruba, Łukasz Szymański, Wanda Stankiewicz, Zuzanna Nowak, Tadeusz Malewski, Małgorzata Krzyżowska
OBJECTIVE AND DESIGN: The aim of this study was to elucidate the role of apoptosis mediated through Fas/FasL pathway using the mouse model of atopic dermatitis (AD). MATERIALS AND TREATMENT: AD was induced by epicutaneous application of ovalbumin (OVA) in wild-type C57BL/6, B6. MRL-Faslpr/J (Fas-) and B6Smn.C3-Faslgld/J (FasL-) mouse strains. METHODS: Skin samples were subjected to staining for Fas/FasL expression, M30 epitope and assessment of inflammatory response via immunohistochemical staining...
April 22, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28434116/activation-of-the-serotonin-pathway-is-associated-with-poor-outcome-in-copd-exacerbation-results-of-a-long-term-cohort-study
#4
Marc A Meier, Manuel Ottiger, Alaadin Vögeli, Christian Steuer, Luca Bernasconi, Robert Thomann, Mirjam Christ-Crain, Christoph Henzen, Claus Hoess, Werner Zimmerli, Andreas Huber, Beat Mueller, Philipp Schuetz
BACKGROUND/INTRODUCTION: Indoleamine 2,3-dioxygenase (IDO) metabolizes tryptophan to kynurenine. An increase of its activity is associated with severity in patients with pneumonia. In chronic obstructive pulmonary disease (COPD) patients, an elevation of serotonin has been reported. Experimental models showed that cigarette smoke inhibits monoamine oxidase (MAO) leading to higher levels of serotonin. We investigated the prognostic ability of tryptophan, serotonin, kynurenine, IDO, and tryptophan hydroxylase (TPH) to predict short- and long-term outcomes in patients with a COPD exacerbation...
April 22, 2017: Lung
https://www.readbyqxmd.com/read/28434046/oral-arginine-supplementation-protects-female-mice-from-the-onset-of-non-alcoholic-steatohepatitis
#5
Cathrin Sellmann, Christian Degen, Cheng Jun Jin, Anika Nier, Anna Janina Engstler, Dana Hasan Alkhatib, Jean-Pascal De Bandt, Ina Bergheim
Dietary arginine (Arg) supplementation has been proposed to have positive effects on the development of liver diseases. In the present study, we investigate if an oral Arg supplementation in diet protects mice fed a fructose, fat and cholesterol enriched Western-style diet (WSD) from the development of non-alcoholic steatohepatitis (NASH). Female C57BL/6J mice were fed a liquid control diet or a liquid WSD ± Arg (2.49 g/kg body weight/day) for 6 weeks. Indices of liver injury, glucose metabolism and intestinal permeability were determined...
April 22, 2017: Amino Acids
https://www.readbyqxmd.com/read/28434015/low-lymphatic-vessel-density-associates-with-chronic-rhinosinusitis-with-nasal-polyps
#6
A Luukkainen, M Seppälä, J Renkonen, R Renkonen, J Hagström, H Huhtala, M Rautiainen, J Myller, T Paavonen, A Ranta, T Torkkeli, S Toppila-Salmi
OBJECTIVES: Chronic rhinosinusitis with and without nasal polyps (CRSwNP and CRSsNP) and antrochoanal polyps (ACP) are different upper airway inflammation phenotypes with different pathomechanisms. In order to understand the development of tissue edema, the present study aimed to evaluate lymphatic vessel density in CRSsNP, CRSwNP and ACP. MATERIALS AND METHODS: 120 retrospective nasal and maxillary sinus specimens were stained immunohistochemically with a von Willebrand factor polyclonal antibody recognizing vascular and lymphatic endothelium, and with a podoplanin monoclonal antibody recognizing lymphatic endothelium...
April 23, 2017: Rhinology
https://www.readbyqxmd.com/read/28433943/acute-lung-injury-leads-to-depression-like-symptoms-through-upregulation-of-neutrophilic-and-neuronal-nadph-oxidase-signaling-in-a-murine-model
#7
Ahmed Nadeem, Nahid Siddiqui, Naif O Al-Harbi, Sabry M Attia, Shakir D AlSharari, Sheikh F Ahmad
There is an increased prevalence of comorbid major depressive disorders with a number of inflammatory conditions which is thought to result from activation of the immune system. Acute lung injury (ALI) in humans has been also shown to be associated with depression previously. However, no study has explored the mechanism behind ALI-induced depression. NADPH oxidase (NOX-2) derived reactive oxygen species (ROS) are associated with neuropsychiatric disorders including depression. ROS generation via NOX-2 is also shown to be involved in the pathogenesis of ALI...
April 20, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28433935/distinct-on-off-fluorescence-signals-from-dual-responsive-activatable-nanoprobes-allows-detection-of-inflammation-with-improved-contrast
#8
Mathieu L Viger, Guillaume Collet, Jacques Lux, Viet Anh Nguyen Huu, Monica Guma, Alexandra Foucault-Collet, Jason Olejniczak, Shivanjali Joshi-Barr, Gary S Firestein, Adah Almutairi
Visualization of biochemical changes associated with disease is of great clinical significance, as it should allow earlier, more accurate diagnosis than structural imaging, facilitating timely clinical intervention. Herein, we report combining stimuli-responsive polymers and near-infrared fluorescent dyes (emission max: 790 nm) to create robust activatable fluorescent nanoprobes capable of simultaneously detecting acidosis and oxidative stress associated with inflammatory microenvironments. The spectrally-resolved mechanism of fluorescence activation allows removal of unwanted background signal (up to 20-fold reduction) and isolation of a pure activated signal, which enables sensitive and unambiguous localization of inflamed areas; target-to-background ratios reach 22 as early as 3 h post-injection...
March 28, 2017: Biomaterials
https://www.readbyqxmd.com/read/28433890/il-37-induces-autophagy-in-hepatocellular-carcinoma-cells-by-inhibiting-the-pi3k-akt-mtor-pathway
#9
Ting-Ting Li, Di Zhu, Tong Mou, Zhen Guo, Jun-Liang Pu, Qing-Song Chen, Xu-Fu Wei, Zhong-Jun Wu
Autophagy is an intracellular "self-eating" process that is closely related to inflammation and cellular immunity. New studies indicate that autophagy is also involved in tumor suppression. The anti-inflammatory cytokine interleukin-37 (IL-37) has been shown to have tumor-suppressive abilities in hepatocellular carcinoma (HCC). Notably, autophagy appears to play a dual role in the development of HCC and may be involved in both tumorigenesis and tumor suppression. However, the potential role of IL-37 in autophagy is currently unknown...
April 20, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28433888/plasma-derived-exosomes-contribute-to-inflammation-via-the-tlr9-nf-%C3%AE%C2%BAb-pathway-in-chronic-heart-failure-patients
#10
Wei Ye, Xiaojun Tang, Zhengquan Yang, Chu Liu, Xin Zhang, Jing Jin, Jianxin Lyu
Exosomes are small vesicles that contain proteins, DNA and RNA, and play an important role in inflammation; however, the underlying mechanism remains unclear. In the present study, we found increased plasma-derived exosomes in chronic heart failure patients compared with healthy controls. Further, our data demonstrated that plasma-derived exosomes carried mtDNA, and triggered an inflammatory response via the TLR9-NF-κB pathway, as well, the inflammatory effect was closely related to exosomal mtDNA copy number...
April 20, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28433831/ultrasonography-of-the-transverse-movement-and-deformation-of-the-median-nerve-and-its-relationships-with-electrophysiological-severity-in-the-early-stages-of-carpal-tunnel-syndrome
#11
Donghwi Park
BACKGROUND: To date, there have been conflicting suggestions regarding theinitial pathogenesis of CTS.It has been characterized as either inflammation of the median nerve caused by compression ornon-inflammatory fibrosis of the subsynovial connective tissue (SSCT). OBJECTIVE: To investigate the initialpathogenesis of CTS, we compared the deformation and displacement of the median nerve in accordance with the electrophysiological severity between patients with CTS (via Bland`s scale) and healthy controls...
April 19, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28433814/synovial-fluid-pro-inflammatory-profile-differs-according-to-the-characteristics-of-knee-pain
#12
Ying Ying Leung, Janet L Huebner, Benjamin Haaland, Steven Bak Siew Wong, Virginia Byers Kraus
OBJECTIVE: The role of inflammation and pain in osteoarthritis (OA) is not fully understood. We evaluated the association between pro-inflammatory biomarkers and pain. METHODS: We used baseline data and samples from a randomized controlled trial of colchicine for symptomatic knee OA. Severity of pain of the more symptomatic knee was assessed by NHANES-I criterion and WOMAC pain index. Pains on movement and at rest were self-reported on an 11-point Likert scale. Severity of radiographic tibiofemoral OA was assessed by Kellgren and Lawrence (KL) grade...
April 19, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28433762/novel-viral-and-host-targets-to-cure-hepatitis-b
#13
REVIEW
Chunkyu Ko, Thomas Michler, Ulrike Protzer
Hepatitis B virus (HBV) infection is a global health threat with 240 million chronic carriers at high risk to develop hepatocellular carcinoma. Current antiviral treatment can efficiently control viral replication and reduce liver inflammation, but is still quite far from achieving a cure. Significant progress has been made in understanding the virus life cycle and virus-host interaction in the past few years. With identification of the HBV receptor, cell-culture infection systems have become available that allow drug screening and establishing a pipeline of potential antivirals targeting either viral or host factors...
April 20, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28433754/mir-146a-suppresses-stat3-vegf-pathways-and-reduces-apoptosis-through-il-6-signaling-in-primary-human-retinal-microvascular-endothelial-cells-in-high-glucose-conditions
#14
Eun-Ah Ye, Jena J Steinle
microRNA (miRNA) play critical roles in the pathological processes of diabetic retinopathy, including inflammatory responses, insulin signaling, and angiogenesis. In addition to their regulatory functions on gene expression, miRNA is considered as a potential therapeutic target, as well as a diagnostic marker for many diseases. Our understanding on the pathological mechanisms underlying diabetic retinopathy is still incomplete and additional investigations are required to develop novel therapeutic strategies...
April 19, 2017: Vision Research
https://www.readbyqxmd.com/read/28433746/transforming-growth-factor-beta-1-signaling-regulates-neuroinflammation-and-apoptosis-in-mild-traumatic-brain-injury
#15
Rachel K Patel, Nithisha Prasad, Ram Kuwar, Debanjan Haldar, P M Abdul-Muneer
Mild Traumatic brain injury (mTBI) is a low-level injury, which often remains undiagnosed, and in most cases it leads to death and disability as it advances as secondary injury. Therefore, it is important to study the underlying signaling mechanisms of mTBI-associated neurological ailments. While transforming growth factor-beta1 (TGF-β1) has a significant role in inflammation and apoptosis in myriads of other pathophysiological conditions, the precise function of increased TGF-β1 after mTBI is unknown. In this study, our objective is to study the physiological relevance and associated mechanisms of TGF-β1-mediated inflammation and apoptosis in mTBI...
April 19, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28433745/hypoxia-augments-lps-induced-inflammation-and-triggers-high-altitude-cerebral-edema-in-mice
#16
Yanzhao Zhou, Xin Huang, Tong Zhao, Meng Qiao, Xingnan Zhao, Ming Zhao, Lun Xu, Yongqi Zhao, Liying Wu, Kuiwu Wu, Ruoli Chen, Ming Fan, Lingling Zhu
High altitude cerebral edema (HACE) is a life-threatening illness that develops during the rapid ascent to high altitudes, but its underlying mechanisms remain unclear. Growing evidence has implicated inflammation in the susceptibility to and development of brain edema. In the present study, we investigated the inflammatory response and its roles in HACE in mice following high altitude hypoxic injury. We report that acute hypobaric hypoxia induced a slight inflammatory response or brain edema within 24 h in mice...
April 19, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28433709/pulmonary-pathobiology-induced-by-zinc-oxide-nanoparticles-in-mice-a-24-hour-and-28-day-follow-up-study
#17
Hsiao-Chi Chuang, Kai-Jen Chuang, Jen-Kun Chen, His-En Hua, Yen-Ling Shen, Wei-Neng Liao, Chii-Hong Lee, Chih-Hong Pan, Kuan-Yuan Chen, Kang-Yun Lee, Ta-Chih Hsiao, Tsun-Jen Cheng
Inhaled zinc oxide nanoparticles (ZnONPs) have high deposition rates in the alveolar region of the lungs; however, the adverse health effects of ZnONPs on the respiratory system are unclear. Herein, pathobiological responses of the respiratory system of mice that received intratracheal administration of ZnONPs were investigated by a combination of molecular and imaging (SPECT and CT) approaches. Also, normal BEAS-2B and adenocarcinoma A549 cells were used to confirm the results in mice. First, female BALB/c mice were administrated a series of doses of 20-nm ZnONPs and were compared to the phosphate-buffered saline control for 24-h and 28-day follow-up observations...
April 19, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28433688/vitamin-d-downregulates-the-il-23-receptor-pathway-in-human-mucosal-ilc3
#18
Viktoria Konya, Paulo Czarnewski, Marianne Forkel, Anna Rao, Efthymia Kokkinou, Eduardo J Villablanca, Sven Almer, Ulrik Lindforss, Danielle Friberg, Charlotte Höög, Peter Bergman, Jenny Mjösberg
BACKGROUND: Vitamin D deficiency is a risk factor for inflammatory bowel disease (IBD). The IL-23-driven tissue-resident ILC3 play essential roles in intestinal immunity, and targeting IL-23/12 is a promising approach in IBD therapy. OBJECTIVE: We set out to define the role of 1α,25-dihydroxy vitamin D3 (1,25D) in regulating functional responses of human mucosal ILC3 to IL-23 plus IL-1β stimulation. METHODS: Transcriptomes of sorted tonsil ILC3 were assessed by microarray analysis...
April 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28433660/redox-regulation-of-gasotransmission-in-the-vascular-system-a-focus-on-angiogenesis
#19
REVIEW
Rajesh K Mistry, Alison C Brewer
Reactive oxygen species have emerged as key participants in a broad range of physiological and pathophysiological processes, not least within the vascular system. Diverse cellular functions which have been attributed to some of these pro-oxidants within the vasculature include the regulation of blood pressure, neovascularisation and vascular inflammation. We here highlight the emerging roles of the enzymatically-generated reaction oxygen species, O2(-) and H2O2, in the regulation of the functions of the gaseous signalling molecules: nitric oxide (NO), carbon monoxide (CO), and hydrogen sulphide (H2S)...
April 19, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28433652/ketamine-potentiates-oxidative-stress-and-influences-behaviour-and-inflammation-in-response-to-lipolysaccharide-lps-exposure-in-early-life
#20
Gislaine Z Réus, Lutiana R Simões, Gabriela D Colpo, Giselli Scaini, Jean P Oses, Jaqueline S Generoso, Alan R Prossin, Rima Kaddurah-Daouk, João Quevedo, Tatiana Barichello
Immune activation (IA) during the early neonatal period is a risk factor for the development of schizophrenia. Lipopolysaccharide (LPS) injected in neonates lead to behavioral and brain changes that persist to adult life. We investigated oxidative stress, levels of cytokines, and the locomotor activity of IA in a schizophrenia animal model in which neonatal male Wistar rats were administered with an injection of LPS (50 μg/kg) on postnatal day 3 and different doses of ketamine (5, 15 and 25 mg/kg) for 7 days during adulthood...
April 19, 2017: Neuroscience
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