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https://www.readbyqxmd.com/read/29149667/tumor-acidosis-and-hypoxia-differently-modulate-the-inflammatory-program-measurements-in-vitro-and-in-vivo
#1
Anne Riemann, Sarah Reime, Oliver Thews
Inflammatory mediators produced by the tumor cells are of importance for immune response but also for malignant progression. The aim of the study was to analyze the expression of monocyte chemoattractant protein-1, interleukin-6 (IL-6), tumor necrosis factor-α, inducible isoform of nitric oxide synthase (iNOS), cyclooxygenase-2, and osteopontin in vitro in two different tumor cell lines under hypoxia (pO2≈1.5 mmHg) and/or acidosis (pH=6.6) for up to 24 hours since hypoxia and acidosis are common characteristics of solid tumors...
November 14, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29149648/dried-plum-alleviates-symptoms-of-inflammatory-arthritis-in-tnf-transgenic-mice
#2
Faryal Mirza, Joseph Lorenzo, Hicham Drissi, Francis Y Lee, Do Y Soung
Dried plum (DP), a rich source of polyphenols has been shown to have bone-preserving properties in both animal models of osteoporosis and postmenopausal women. We evaluated if DP alleviated the destruction of joints in transgenic mice (TG) that overexpress human tumor necrosis factor (TNF), a genetic model of rheumatoid arthritis (RA). A four-week treatment of 20% DP diet in TG slowed the onset of arthritis and reduced bone erosions in the joints compared to TG on a regular diet. This was associated with fewer tartrate-resistant acid phosphatase (TRAP) positive cells, suggesting decreased osteoclastogenesis...
October 16, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29148590/effects-of-bergenin-on-methylglyoxal-induced-damage-in-osteoblastic-mc3t3-e1-cells
#3
Kyung Hee Lee, Eun Mi Choi
Bergenin is the main chemical constituent of plants in the genus Bergenia, which are used in traditional medicines. Methylglyoxal (MG), a highly reactive dicarbonyl compound, is the major precursor for forming advanced glycation end products (AGEs). Pretreating MC3T3-E1 cells with bergenin prevented MG-induced protein adduct formation. Bergenin inhibited the MG-induced soluble receptor for AGE (sRAGE), interleukin, reactive oxygen species and mitochondrial superoxide production. Additionally bergenin increased glyoxalase I activity, glutathione, heme oxygenase-1 and nuclear factor erythroid 2-related factor 2 levels in the presence of MG...
November 17, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29148235/assessment-of-interleukin-1%C3%AE-interleukin-6-and-tumor-necrosis-factor-%C3%AE-levels-in-the-peri-implant-sulcular-fluid-among-waterpipe-narghile-smokers-and-never-smokers-with-peri-implantitis
#4
Tariq Abduljabbar, Zohaib Akram, Fahim Vohra, Saman Warnakulasuriya, Fawad Javed
BACKGROUND: It is hypothesized that levels of interleukin (IL)-1β, IL-6 and tumor necrosis factor (TNF)-α are significantly higher in the peri-implant sulcular fluid (PISF) of waterpipe-smokers (WS) compared with never-smokers with peri-implantitis. PURPOSE: The aim of the present convenience sample case-control study was to compare the levels of IL-6, IL-1β, and TNF-α in the PISF of WS and never-smokers with peri-implantitis. MATERIALS AND METHODS: Demographic data was collected using a questionnaire...
November 16, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29148104/neuregulin-1-promotes-remyelination-and-fosters-a-pro-regenerative-inflammatory-response-in-focal-demyelinating-lesions-of-the-spinal-cord
#5
Hardeep Kataria, Arsalan Alizadeh, Ghazaleh M Shahriary, Shekoofeh Saboktakin Rizi, Ryan Henrie, Kallivalappil T Santhosh, James A Thliveris, Soheila Karimi-Abdolrezaee
Oligodendroglial cell death and demyelination are hallmarks of neurotrauma and multiple sclerosis that cause axonal damage and functional impairments. Remyelination remains a challenge as the ability of endogenous precursor cells for oligodendrocyte replacement is hindered in the unfavorable milieu of demyelinating conditions. Here, in a rat model of lysolecithin lysophosphatidyl-choline (LPC)-induced focal demyelination, we report that Neuregulin-1 (Nrg-1), an important factor for oligodendrocytes and myelination, is dysregulated in demyelinating lesions and its bio-availability can promote oligodendrogenesis and remyelination...
November 17, 2017: Glia
https://www.readbyqxmd.com/read/29147715/the-impact-of-ultraviolet-b-uv-b-radiation-in-combination-with-different-temperatures-in-the-early-life-stage-of-zebrafish-danio-rerio
#6
Feyza Icoglu Aksakal, Abdulkadir Ciltas
Ultraviolet B (UV-B) radiation is an environmental stressor with detrimental effects on many aquatic organisms including fish. In addition, UV-B exposure combined with other environmental factors could have even more negative effects. The purpose of this study was to investigate the effect of UV-B radiation exposure on zebrafish embryos/larvae in terms of survival, developmental toxicity and the mRNA levels of the genes related to oxidative stress and innate immune response at different temperatures (24 °C, 28 °C and 30 °C)...
November 17, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/29147666/sympathetic-denervation-accelerates-wound-contraction-but-inhibits-reepithelialization-and-pericyte-proliferation-in-diabetic-mice
#7
Zhifang Zheng, Yu Wan, Yishu Liu, Yu Yang, Jianbing Tang, Wenhua Huang, Biao Cheng
Previous studies focused on the effects of sympathetic denervation with 6-hydroxydopamine (6-OHDA) on nondiabetic wounds, but the effects of 6-OHDA on diabetic wounds have not been previously reported. In this study, treated mice received intraperitoneal 6-OHDA, and control mice received intraperitoneal injections of normal saline. Full-thickness wounds were established on the backs of mice. The wounds were sectioned (four mice per group) for analysis at 2, 5, 7, 10, 14, 17, and 21 days after injury. The wound areas in the control group were larger than those in the treatment group...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29147584/il-33-acts-to-express-schaffer-collateral-ca1-ltp-and-regulate-learning-and-memory-by-targeting-myd88
#8
Tomoyuki Nishizaki
Interleukin-33 (IL-33) is recognized to transmit a signal through a heterodimeric receptor complex ST2/interleukin-1 receptor accessory protein (IL-1RAcP) bearing activation of myeloid differentiation factor 88 (MyD88). High-frequency stimulation to the Schaffer collateral induced long-term potentiation (LTP) in the CA1 region of hippocampal slices from wild-type control mice. Schaffer collateral/CA1 LTP in IL-33-deficient mice was significantly suppressed, which was neutralized by application with IL-33. Similar suppression of the LTP was found with MyD88-deficient mice but not with ST2-deficient mice...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/29147443/4-nitroquinoline-1-oxide-induced-tongue-and-esophagus-carcinogenesis-in-obese-and-diabetic-tsod-mice
#9
Takuji Tanaka, Kunihiro Kawabata, Shigeyuki Sugie
Background: Obesity and diabetes mellitus are associated with lifestyle-related carcinogenesis. They are also risk factors of esophageal adenocarcinoma, but there are only a few reports on association between obesity/diabetes and development of squamous cell carcinoma in the oral cavity and esophagus. In this study, we therefore aimed to determine whether obesity and diabetes affect oral and esophageal carcinogenesis using model mice of obesity and diabetes, the Tsumura Suzuki obese diabetes (TSOD) and Tsumura Suzuki non-obesity (TSNO) control mice, which were treated with 4-nitroquinoline 1-oxide (4-NQO) to produce tongue and esophageal carcinomas...
August 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29147072/paradoxical-association-of-postoperative-plasma-sphingosine-1-phosphate-with-breast-cancer-aggressiveness-and-chemotherapy
#10
Rajesh Ramanathan, Ali Raza, Jamie Sturgill, Debra Lyon, Jessica Young, Nitai C Hait, Kazuaki Takabe
Sphingosine-1-phosphate (S1P) is a bioactive lipid mediator that has been shown to serve an important regulatory function in breast cancer progression. This study analyzes plasma S1P levels in breast cancer patients undergoing adjuvant therapy as compared to healthy control volunteers. 452 plasma S1P samples among 158 breast cancer patients, along with 20 healthy control volunteers, were analyzed. Mean S1P levels did not significantly differ between cancer patients and controls. Smoking was associated with higher S1P levels in cancer patients...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29146124/relationship-of-c-reactive-protein-reduction-to-cardiovascular-event-reduction-following-treatment-with-canakinumab-a-secondary-analysis-from-the-cantos-randomised-controlled-trial
#11
Paul M Ridker, Jean G MacFadyen, Brendan M Everett, Peter Libby, Tom Thuren, Robert J Glynn
BACKGROUND: Canakinumab, a monoclonal antibody targeting interleukin-1β, reduces inflammation and cardiovascular event rates with no effect on lipid concentrations. However, it is uncertain which patient groups benefit the most from treatment and whether reductions in the inflammatory biomarker high-sensitivity C-reactive protein (hsCRP) correlate with clinical benefits for individual patients. METHODS: The Canakinumab Anti-Inflammatory Thrombosis Outcomes Study (CANTOS) used computer-generated codes to randomly allocate 10 061 men and women with a history of myocardial infarction to placebo or one of three doses of canakinumab (50 mg, 150 mg, or 300 mg) given subcutaneously once every 3 months...
November 13, 2017: Lancet
https://www.readbyqxmd.com/read/29146047/maternal-immune-activation-delays-excitatory-to-inhibitory-gamma-aminobutyric-acid-switch-in-offspring
#12
Irene Corradini, Elisa Focchi, Marco Rasile, Raffaella Morini, Genni Desiato, Romana Tomasoni, Michela Lizier, Elsa Ghirardini, Riccardo Fesce, Diego Morone, Isabella Barajon, Flavia Antonucci, Davide Pozzi, Michela Matteoli
BACKGROUND: The association between maternal infection and neurodevelopmental defects in progeny is well established, although the biological mechanisms and the pathogenic trajectories involved have not been defined. METHODS: Pregnant dams were injected intraperitoneally at gestational day 9 with polyinosinic:polycytidylic acid. Neuronal development was assessed by means of electrophysiological, optical, and biochemical analyses. RESULTS: Prenatal exposure to polyinosinic:polycytidylic acid causes an imbalanced expression of the Na(+)-K(+)-2Cl(-) cotransporter 1 and the K(+)-Cl(-) cotransporter 2 (KCC2)...
November 14, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29145862/l161982-alleviates-collagen-induced-arthritis-in-mice-by-increasing-treg-cells-and-down-regulating-interleukin-17-and-monocyte-chemoattractant-protein-1-levels
#13
Liang Chen, Xianglei Wu, Jun Zhong, Dongqing Li
BACKGROUND: To investigate the effects and potential mechanism of L161982 (a kind of EP4 antagonist) on the collagen-induced arthritis (CIA) mice model. METHODS: The CIA mice model were first established by immunizing with Chicken Type II Collagen on DBA/1 mice. The CIA groups were administered once a day for 2 weeks with either 5 mg/kg L161982 by intraperitoneal injections (IP), 200 U celecoxib by intragastrical injections, or 100 μl PBS (IP). At the end of the study, total arthritis score and histopathologic examination were assessed to determine CIA severity...
November 16, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29145837/molecular-network-based-analysis-of-the-mechanism-of-liver-injury-induced-by-volatile-oils-from-artemisiae-argyi-folium
#14
Hongjie Liu, Sha Zhan, Yan Zhang, Yan Ma, Liang Chen, Lingxiu Chen, Hanqiu Dong, Min Ma, Zhe Zhang
BACKGROUND: Volatile oils from Artemisiae argyi folium (VOAAF) is reported with hepatotoxicity, but the underlying mechanism is still unclear. METHODS: In the present study this molecular mechanism was explored with the Ingenuity Pathway Analysis (IPA). The chemical components of the VOAAF were searched in the database, and their target proteins were all identified in the PubChem, while drug-induced liver injury (DILI) genes were searched in the PubMed gene databases...
November 16, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29145701/tnf-antagonists-killing-two-birds-with-one-biologic-stone
#15
EDITORIAL
Joan M Bathon, Jon T Giles, Daniel H Solomon
Forty years have passed since it was first recognized that patients with autoimmune rheumatic disease have an increased risk of fatal and non-fatal cardiovascular (CV) events (1) Although initial reports focused on rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE), similar findings were verified subsequently in patients with psoriasis (Ps) and/or psoriatic arthritis (PsA) and spondyloarthritis. An early feature of the atherosclerotic lesion is infiltration with inflammatory cells, particularly monocytes/macrophages, and the presence of these cells in mature plaque elevates the risk of plaque rupture and thrombosis (2)...
November 16, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29145255/functional-polymorphism-rs3783553-in-the-3-untranslated-region-of-il-1a-increased-the-risk-of-ischemic-stroke-a-case-control-study
#16
Peng Wang, Qian He, Chen Liu, Shi Zhen He, Shou Yan Zhu, Ying Wen Li, Wei Su, Shu Tian Xiang, Bo Zhao
Accumulating evidence indicates interleukin-1 (IL-1) is a critical mediator of inflammatory responses in ischemic stroke (IS). The aim of this study was to investigate whether rs3783553 in the 3'-untranslated region of IL-1A was associated with the risk of IS. In this hospital-based case-control study, we genotyped the rs3783553 using polymerase chain reaction in 316 patients with IS and 332 age, sex, and ethnicity-matched controls. Plasma level of IL-1α was measured by enzyme-linked immunosorbent assay. The relative luciferase activities were measured by the Dual Luciferase assay system...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145197/inflammatory-and-angiogenic-factors-linked-to-longitudinal-microvascular-changes-in-hemodialysis-patients-irrespective-of-treatment-dose-intensity
#17
Nicos Mitsides, Tom Cornelis, Natascha J H Broers, Nanada M P Diederen, Paul Brenchley, Nicole Heitink-Ter Braak, Frank M van der Sande, Casper G Schalkwijk, Jeroen P Kooman, Sandip Mitra
BACKGROUND: Cardiovascular disease is a major contributor to the poor outcomes observed in hemodialysis. We investigated the relationship between hemodialysis intensity and vascular parameters in high-dose (HDHD; >12hrs/week) and Conventional (CHD; ≤12hrs/week) hemodialysis intensity over a 6-month period. METHODS: We present the 6-month longitudinal analysis of a 2-year multicenter study investigating the effects of HDHD on cardiovascular parameters. We used pulse wave velocity, 24hr ambulatory blood pressure and sublingual dark field capillaroscopy measurements to assess macro- and microcirculation on 6-monthly basis...
November 16, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29144802/lipid-accumulation-product-visceral-adiposity-index-and-chinese-visceral-adiposity-index-as-markers-of-cardiometabolic-risk-in-adult-growth-hormone-deficiency-patients-a-cross-sectional-study
#18
Xin Xie, Qing Li, Lingmin Zhang, Wei Ren
OBJECTIVE: Adult growth hormone deficiency (AGHD) is associated with cardiometabolic risk factors. Given that cardiovascular disease (CVD) is an important cause of morbidity and mortality in the AGHD population, there is a need for alternative, non-invasive methods of assessing cardiometabolic risk in this population. Chinese visceral adiposity index (CVAI) is a new marker of visceral fat dysfunction that is based on age, body mass index (BMI), waist circumference (WC) and metabolic parameters...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144585/therapeutic-potential-of-low-dose-il-2-in-immune-thrombocytopenia-an-analysis-of-3-cases
#19
Jiakui Zhang, Yanjie Ruan, Xuanxuan Xu, Huiping Wang, Qianshan Tao, Jun Lu, Linhuan Xia, Qiuye Zhang, Jeffrey Wang, Yiping Wang, Zhimin Zhai
Immune thrombocytopenia (ITP) is an acquired immune-mediated disorder with regulatory T cells (Tregs) reduction. Recent studies have shown that low-dose interleukin-2 can preferentially induce regulatory T cell expansion in vivo, and therefore offers a therapeutic strategy against immune thrombocytopenia. We have demonstrated in a previous study that Tregs and platelet counts significantly improve in an adult with ITP following low-dose IL-2 treatment. Here we report the efficacy of low-dose interleukin-2 in another three adults with immune thrombocytopenia who failed the first-line treatment...
November 16, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/29144460/inflammation-induced-iga-cells-dismantle-anti-liver-cancer-immunity
#20
Shabnam Shalapour, Xue-Jia Lin, Ingmar N Bastian, John Brain, Alastair D Burt, Alexander A Aksenov, Alison F Vrbanac, Weihua Li, Andres Perkins, Takaji Matsutani, Zhenyu Zhong, Debanjan Dhar, Jose A Navas-Molina, Jun Xu, Rohit Loomba, Michael Downes, Ruth T Yu, Ronald M Evans, Pieter C Dorrestein, Rob Knight, Christopher Benner, Quentin M Anstee, Michael Karin
The role of adaptive immunity in early cancer development is controversial. Here we show that chronic inflammation and fibrosis in humans and mice with non-alcoholic fatty liver disease is accompanied by accumulation of liver-resident immunoglobulin-A-producing (IgA(+)) cells. These cells also express programmed death ligand 1 (PD-L1) and interleukin-10, and directly suppress liver cytotoxic CD8(+) T lymphocytes, which prevent emergence of hepatocellular carcinoma and express a limited repertoire of T-cell receptors against tumour-associated antigens...
November 16, 2017: Nature
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