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Megumi Funakoshi-Tago, Kentaro Ohsawa, Toshiyuki Ishikawa, Fumika Nakamura, Fumihito Ueda, Yuji Narukawa, Fumiyuki Kiuchi, Hiroomi Tamura, Kenji Tago, Tadashi Kasahara
Flavonoids, particularly those derived from plants, harbor biological effects such as anti-inflammation and the inhibition of cancer progression. In the present study, we investigated the effects of 10 kinds of flavonoids isolated from Nepalese propolis on the LPS signaling pathway in order to clarify their anti-inflammatory activities. Five types of flavonoids: isoliquiritigenin, chrysin, 3',4'-dihydroxy-4-methoxydalbergione, 4-methoxydalbergion, and cearoin, markedly inhibited inflammatory responses including LPS-induced NO production by suppressing the expression of iNOS mRNA and LPS-induced mRNA expression of TNFα and CCL2...
October 19, 2016: International Immunopharmacology
I-Ting Tsai, Chao-Ping Wang, Teng-Hung Yu, Yung-Chuan Lu, Chih-Wen Lin, Li-Fen Lu, Cheng-Ching Wu, Fu-Mei Chung, Yau-Jiunn Lee, Wei-Chin Hung, Chia-Chang Hsu
Adipocytokines play an important role in adipose tissue homeostasis, especially in obesity-associated disorders such as non-alcoholic fatty liver and their complications including hepatocellular carcinoma (HCC). Although visfatin is an adipocytokine highly expressed in visceral fat that has been demonstrated to play a critical role in the progression of human malignancies, little is known about the role of visfatin in HCC associated with chronic hepatitis C virus (HCV) and hepatitis B virus (HBV) infection...
October 19, 2016: Cytokine
Ki Mo Kim, Deok Rim Heo, Young-A Kim, Jun Lee, No Soo Kim, Ok-Sun Bang
Coniferaldehyde (CA) exerts anti-inflammatory properties by inducing heme oxygenase-1 (HO-1). To define the regulation mechanism by which CA induces a cytoprotective function and HO-1 expression, the up-stream regulations involved in the activation of nuclear transcription factor-erythroid 2-related factor (Nrf)-2/HO-1 pathway were investigated. CA dramatically increased the Nrf-2 nuclear translocation and HO-1 expression. Lipopolysaccharide (LPS)-induced expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2, and cell death were down-regulated by CA, which were reversed by inhibition of HO-1 activity...
October 17, 2016: Environmental Toxicology and Pharmacology
Vania Polesello, Luisa Zupin, Roberto Di Lenarda, Matteo Biasotto, Gabriele Pozzato, Giulia Ottaviani, Margherita Gobbo, Sergio Crovella, Ludovica Segat
OBJECTIVES: The aetiology of Oral Lichen Planus (OLP), a chronic inflammatory disease of oral mucosa, is not yet well understood. Since innate immunity may be hypothesized as involved in the susceptibility to OLP, we studied human beta defensin 1 (hBD-1) an antimicrobial peptide constitutively expressed in the saliva, looking at functional genetic variants possibly able to diminish hBD-1 production an consequently conferring major susceptibility to OLP. DESIGN: We analysed three DEFB1 polymorphisms at 5' UTR, -52G>A (rs1799946), -44C>G (rs1800972), -20G>A (rs11362) and two DEFB1 polymorphisms at 3'UTR, c*5G>A (rs1047031), c*87A>G (rs1800971), with the aim of correlating these genetic variants and hBD-1 salivary level in a group of OLP patients and in healthy subjects...
October 12, 2016: Archives of Oral Biology
D Lecca, D K Nevin, G Mulas, M A Casu, A Diana, D Rossi, G Sacchetti, A R Carta, D Fayne
No abstract text is available yet for this article.
October 19, 2016: Neuroscience
Moushira E Zaki, Hala T El-Bassyouni, Angie M S Tosson, Eman Youness, Jihan Hussein
OBJECTIVE: Evidence of oxidative stress was reported in individuals with Down syndrome. There is a growing interest in the contribution of the immune system in Down syndrome. The aim of this study is to evaluate the coenzyme Q10 (CoQ10) and selected pro-inflammatory markers such as interleukin 6 (IL-6) and tumor necrosis factor α (TNFα) in children with Down syndrome. METHODS: Eighty-six children (5-8 years of age) were enrolled in this case-control study from two public institutions...
October 19, 2016: Jornal de Pediatria
Limin Xiang, Yihai Wang, Xiaomin Yi, Xiangjiu He
Phytochemical investigations of the rhizome of Tupistra chinensis led to the isolation of ten new furostanol saponins along with fourteen known spirostanols. Their chemical structures were elucidated on the basis of spectroscopic and chemical methods, including IR, NMR, MS, and GC analyses. The antiproliferative effects against FaDu and Detroit 562 cell lines and inhibitory activities on nitric oxide (NO) production induced by lipopolysaccharide (LPS) in a macrophage cell line RAW 264.7 were assayed for all the isolated compounds...
October 19, 2016: Steroids
Dong Liu, Jie-Lu Zhou, Fashui Hong, Yu-Qing Zhang
Titanium dioxide nanoparticles (TiO2 NPs) are used in many fields, such as paints, medicine additives, food additives, sunscreens and agriculture. The aim of this study was to investgate the mechanism behind the formation of inflammation induced by TiO2 NPs. ICR mice were exposed to TiO2 NPs through intragastric administration at 2.5, 5 and 10 mg/kg body weight every day for 90 consecutive days. The experiment suggested that long-term exposure to TiO2 NPs resulted in an obvious inflammatory response in mice lung tissues, which led to a thickened alveoli septum, lung hyperaemia, and titanium accumulation...
October 22, 2016: Journal of Biomedical Materials Research. Part A
Daniel A Patten, Garrick K Wilson, Dalan Bailey, Robert K Shaw, Sirpa Jalkanen, Marko Salmi, Antal Rot, Christopher J Weston, David H Adams, Shishir Shetty
: The recruitment of lymphocytes via the hepatic sinusoidal channels and positioning within liver tissue is a critical event in the development and persistence of chronic inflammatory liver diseases. The hepatic sinusoid is a unique vascular bed lined by hepatic sinusoidal endothelial cells (HSEC), a functionally and phenotypically distinct sub-population of endothelial cells. Using flow based adhesion assays to study the migration of lymphocytes across primary human HSEC, we found that lymphocytes enter into HSEC, confirmed by electron microscopy demonstrating clear intracellular localization of lymphocytes in vitro and by studies in human liver tissues...
October 22, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
X Yao, E A Stewart, S K Laughlin-Tommaso, H C Heien, B J Borah
OBJECTIVES: To report patterns and patient characteristics associated with initiation of and persistence with medical therapies for uterine fibroid-related heavy menstrual bleeding. DESIGN: Retrospective cohort study. SETTING: US commercial insurance claims database. POPULATION: 41 561 women aged 18-54 years with uterine fibroids and heavy menstrual bleeding who initiated medical therapies from January 2000 through December 2013...
October 21, 2016: BJOG: An International Journal of Obstetrics and Gynaecology
Juri Bergmann, Miryam Müller, Niklas Baumann, Manuel Reichert, Carola Heneweer, Julia Bolik, Karsten Lücke, Sabine Gruber, Antonella Carambia, Susanne Boretius, Ivo Leuschner, Thomas Becker, Björn Rabe, Johannes Herkel, F Thomas Wunderlich, Hans-Willi Mitrücker, Stefan Rose-John, Dirk Schmidt-Arras
: Hepatocellular carcinoma (HCC) is one of the most frequent tumors worldwide with rising incidence. The inflammatory cytokine interleukin 6 (IL-6) is a critical mediator of HCC development. It can signal through two distinct pathways, the IL-6 classic and the IL-6 trans-signaling pathway. While IL-6 classic signaling is important for innate and acquired immunity, IL-6 trans-signaling has been linked to accelerated liver regeneration and several chronic inflammatory pathologies. However, its implication in liver tumorigenesis has not been addressed yet...
October 22, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Els De Schryver, Lara Derycke, Paloma Campo, Eline Gabriels, Guy F Joos, Thibaut Van Zele, Claus Bachert, Peter W Hellings, Philippe Gevaert
BACKGROUND: An important percentage of subjects diagnosed with chronic upper airway disease report alcohol-induced worsening of their symptoms. The prevalence and characteristics of respiratory reactions provoked by alcohol-containing drinks has not been fully investigated yet. OBJECTIVE: The aim of this study was to estimate the prevalence and characteristics of alcohol hyper-responsiveness in patients with chronic airway disease and healthy controls. Furthermore, nasal inflammation was evaluated in nasal polyp patients with and without hyper-responsiveness...
October 22, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
Flore Amat, Pauline Tallon, Anne-Perrine Foray, Bénédicte Michaud, Nathalie Lambert, Philippe Saint-Pierre, Lucienne Chatenoud, Jocelyne Just
Allergic asthma is an inflammatory disease of the airways, resulting from an inappropriate immune response to inhaled allergens, which involves multiple inflammatory cells and mediators that contribute to airway hyper-responsiveness. Omalizumab is a monoclonal antibody, specifically directed to the C-Epsilon3 domain of immunoglobulin E (IgE), indicated as an additional therapy in severe allergic asthma [1]. Impaired function of regulatory T cells (Treg) is incriminated in the aberrant asthma inflammatory response [2]...
October 22, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
Riin Tamm, Reedik Mägi, Roman Tremmel, Stefan Winter, Evelin Mihailov, Alenka Smid, Anja Möricke, Kathrin Klein, Martin Schrappe, Martin Stanulla, Richard Houlston, Richard Weinshilboum, Irena Mlinarič Raščan, Andres Metspalu, Lili Milani, Matthias Schwab, Elke Schaeffeler
Thiopurine-related hematotoxicity in paediatric acute lymphoblastic leukemia (ALL) and inflammatory bowel diseases has been linked to genetically defined variability in thiopurine S-methyltransferase (TPMT) activity. While gene testing of TPMT is being clinically implemented, it is unclear if additional genetic variation influences TPMT activity with consequences for thiopurine-related toxicity. To examine this possibility, we performed a genome-wide association study (GWAS) of red blood cell TPMT activity in 844 Estonian individuals and 245 paediatric ALL-cases...
October 22, 2016: Clinical Pharmacology and Therapeutics
Zhen Lei, Abdul Sami Shaikh, Wenshuai Zheng, Xiao Yu, Jingui Yu, Jingxin Li
Itch, the unpleasant sensation that evokes a desire to scratch, accompanies numerous skin and nervous system disorders. However, the molecular mechanisms of itch are unclear. Acid sensing ion channel 3 (ASIC3) is a sensor of acidic and primary inflammatory pain. The whole-cell patch-clamp technique was used to determine the effect of Chloroquine (CQ)on ASICs currents in primary sensory neurons or the Chinese hamster ovary (CHO) cells transfected with rat-ASIC1a or- ASIC3. Site-directed mutagenesis of plasmid was performed...
October 22, 2016: Journal of Neurochemistry
Britton Trabert, Ronald C Eldridge, Ruth M Pfeiffer, Meredith S Shiels, Troy J Kemp, Chantal Guillemette, Patricia Hartge, Mark E Sherman, Louise A Brinton, Amanda Black, Anil K Chaturvedi, Allan Hildesheim, Sonja I Berndt, Mahboobeh Safaeian, Ligia Pinto, Nicolas Wentzensen
Inflammation is proposed to increase risk of developing endometrial cancer, but few prospective epidemiologic studies have investigated the relationship between circulating inflammation markers and endometrial cancer risk. In a nested case-control study within the PLCO Screening Trial we measured serum levels of 64 inflammation-related biomarkers in 284 incident endometrial cancer cases and 284 matched controls. Using multivariable logistic regression inflammation markers were evaluated individually and combined into a cross-validated inflammation score...
October 22, 2016: International Journal of Cancer. Journal International du Cancer
Danielle E Jenkins, Dharshini Sreenivasan, Fiona Carman, Samal Babru, Lee E Eiden, Stephen J Bunn
The pro-inflammatory cytokines, tumor necrosis factor-α and interleukin-1β/α modulate catecholamine secretion, and long-term gene regulation, in chromaffin cells of the adrenal medulla. Since interleukin-6 (IL6) also plays a key integrative role during inflammation, we have examined its ability to affect both tyrosine hydroxylase activity and adrenomedullary gene transcription in cultured bovine chromaffin cells. IL6 caused acute tyrosine/threonine phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2), and serine/tyrosine phosphorylation of signal transducer and activator of transcription 3 (STAT3)...
October 22, 2016: Journal of Neurochemistry
Vajara Wilairatana, Peerasit Sinlapavilawan, Sittisak Honsawek, Noppachart Limpaphayom
BACKGROUND: The aim was to compare serum levels of interleukin-6 (SIL6), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and joint fluid IL-6 (JIL-6) level between total knee arthroplasty (TKA) that used bone cement (BC group) and antibiotic-loaded bone cement (ALBC group). MATERIALS AND METHODS: Thirty-nine patients (40 TKAs) with a mean age of 69.6 years were non-randomly assigned to the BC or ALBC groups. Samples of SIL6, ESR, and CRP were collected at baseline and at 24 h, 72 h, and 4 weeks after surgery...
October 21, 2016: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
Zhuqing Leslie Li, Yonghui Shi, Yinyi Ding, Yumei Ran, Guowei Le
Oxidized tyrosine (O-Tyr) products have been detected in commercial food and have been demonstrated to induce liver injury in our previous study, but the precise mechanisms of the impact induced by dietary O-Tyr are still unclear. Kidney plays an important role in the metabolism of protein. Accumulation of O-Tyr products, especially the dityrosine (Dityr) and advanced oxidation protein products (AOPPs), in vivo was shown to be associated with many kidney diseases. Therefore, this study determined whether chronic exposure to dietary O-Tyr impaired renal function in rats...
October 21, 2016: Amino Acids
Bronwen J Mayo, Andrea M Stringer, Joanne M Bowen, Emma H Bateman, Dorothy M Keefe
PURPOSE: A common side effect of irinotecan administration is gastrointestinal mucositis, often manifesting as severe diarrhoea. The damage to the structure and function of the gastrointestinal tract caused by this cytotoxic agent is debilitating and often leads to alterations in patients' regimens, hospitalisation or stoppage of treatment. The purpose of this review is to identify mechanisms of irinotecan-induced intestinal damage and a potential role for GLP-2 analogues for intervention...
October 21, 2016: Cancer Chemotherapy and Pharmacology
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