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https://www.readbyqxmd.com/read/28648817/modulatory-effect-of-silymarin-on-nuclear-factor-erythroid-2-related-factor-2-regulated-redox-status-nuclear-factor-%C3%AE%C2%BAb-mediated-inflammation-and-apoptosis-in-experimental-gastric-ulcer
#1
Walaa Arafa Keshk, Samer Mahmoud Zahran, Mohamed Alaa Katary, Darin Abd El Aziz Ali
Non-steroidal anti-inflammatory drugs (NSAIDs) consumption has been commonly associated with gastric mucosal lesions including gastric ulcer. Silymarin (SM) is a flavonoid mixture with anti-oxidant and anti-inflammatory activities which explain its protective role against hepatic and renal injuries. However, its impact on gastric ulcer has not yet been elucidated. Thus we went further to investigate the potential protective effects of SM against indomethacin-induced gastric injury in rats. Pretreatment with SM (50 mg/kg orally) attenuated the severity of gastric mucosal damage as evidenced by decreasing ulcer index (UI) and ulcer score, improvement of disturbed histopathologicl features to be insignificant with those induced by the reference anti-ulcer drug...
June 22, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28647674/in-pregnancy-increased-maternal-stai-trait-stress-score-shows-decreased-insulin-sensitivity-and-increased-stress-hormones
#2
Georgios Valsamakis, Dimitrios C Papatheodorou, Nikolaos Chalarakis, N Nikolaos Vrachnis, Elpida J Sidiropoulou, Maria Manolikaki, Aimilia Mantzou, Alexandra Margeli, Ioannis Papassotiriou, George P Chrousos, George Mastorakos
INTRODUCTION: Chronic or acute stressors influence maternal and fetal Hypothalamus-Pituitary-Adrenal Axes (HPA) during pregnancy. In this study, the effect of maternal stress into maternal insulin sensitivity was investigated during pregnancy. MATERIALS AND METHODS: Eighty-two pregnant women [aged 27.1±2.5 (mean±SD) yrs; BMI=25±2.2kg/m(2)] had at the 2(nd) and 3(rd) trimesters anthropometry, fasting blood samples (cortisol, Corticotropin Releasing Hormone (CRH), active amylin, Interleukin (IL6)), Oral Glucose Tolerance Test (OGTT) for glucose and insulin, state-trait anxiety inventory (STAI) trait and state questionnaires (for stress assessment)...
June 13, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28647347/differential-activation-of-human-keratinocytes-by-leishmania-spp-causing-localized-or-disseminated-disease
#3
Breanna M Scorza, Mark A Wacker, Kelly Messingham, Peter Kim, Aloysius Klingelhutz, Janet Fairley, Mary E Wilson
All Leishmania spp. parasites are introduced into mammalian skin through a sand fly bite, but different species cause distinct clinical outcomes. Mouse studies suggest early responses are critical determinants of subsequent adaptive immunity in leishmaniasis, yet few studies address the role of keratinocytes, the most abundant cell in the epidermis. We hypothesized Leishmania infection causes keratinocytes to produce immunomodulatory factors that influence the outcome of infection. Incubation of primary or immortalized human keratinocytes with Leishmania infantum or Leishmania major, which cause visceral or cutaneous leishmaniasis, respectively, elicited dramatically different responses...
June 21, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28645275/rapid-monocyte-infiltration-following-retinal-detachment-is-dependent-on-non-canonical-il6-signaling-through-gp130
#4
Xinlei Wang, Eric B Miller, Mayank Goswami, Pengfei Zhang, Kaitryn E Ronning, Sarah J Karlen, Robert J Zawadzki, Edward N Pugh, Marie E Burns
BACKGROUND: Retinal detachment (RD) can lead to proliferative vitreoretinopathy (PVR), a leading cause of intractable vision loss. PVR is associated with a cytokine storm involving common proinflammatory molecules like IL6, but little is known about the source and downstream signaling of IL6 and the consequences for the retina. Here, we investigated the early immune response and resultant cytokine signaling following RD in mice. METHODS: RD was induced in C57BL/6 J and IL6 knockout mice, and the resulting inflammatory response was examined using immunohistochemistry and flow cytometry...
June 23, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28644700/intermittent-ischemic-preconditioning-protects-against-hepatic-ischemia-reperfusion-injury-and-extensive-hepatectomy-in-steatotic-rat-liver
#5
Nikolaos Sikalias, Theodore Karatzas, Konstantinos Alexiou, Lamprini Mountzalia, Maria Demonakou, Ioannis D Kostakis, Argyro Zacharioudaki, Apostolos Papalois, Gregory Kouraklis
BACKGROUND: Hepatic steatosis causes severe liver damage and has deleterious effects when associated with ischemia-reperfusion mechanisms. Ischemic preconditioning (IPC) protects lean liver against prolonged ischemia by improving micro-circulation and reducing lipid peroxidation. We investigated the effect of intermittent IPC on liver ischemia-reperfusion injury (IRI) and extensive hepatectomy in severe hepatic steatosis. METHODS: Severe hepatic steatosis was performed by 12-14 weeks of choline-free diet in 108 Wistar rats...
June 23, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28642198/treatment-of-intestinal-fibrosis-in-experimental-inflammatory-bowel-disease-by-the-pleiotropic-actions-of-a-local-rho-kinase-inhibitor
#6
Tom Holvoet, Sarah Devriese, Karolien Castermans, Sandro Boland, Dirk Leysen, Yves-Paul Vandewynckel, Lindsey Devisscher, Lien Van den Bossche, Sophie Van Welden, Melissa Dullaers, Roosmarijn E Vandenbroucke, Riet De Rycke, Karel Geboes, Arnaud Bourin, Olivier Defert, Pieter Hindryckx, Martine De Vos, Debby Laukens
BACKGROUND: Intestinal fibrosis resulting in (sub)obstruction is a common complication of Crohn's disease (CD). Rho kinases (ROCKs) play multiple roles in TGFβ1-induced myofibroblast activation that could be therapeutic targets. Because systemic ROCK inhibition causes cardiovascular side-effects, we evaluated the effects of a locally acting ROCK inhibitor (AMA0825) on intestinal fibrosis. METHODS: Fibrosis was assessed in mouse models using dextran sulfate sodium and adoptive T cell transfer...
June 19, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28636670/identification-of-novel-small-molecules-that-inhibit-stat3-dependent-transcription-and-function
#7
Iryna Kolosenko, Yasmin Yu, Sander Busker, Matheus Dyczynski, Jianping Liu, Martin Haraldsson, Caroline Palm Apergi, Thomas Helleday, Katja Pokrovskaja Tamm, Brent D G Page, Dan Grander
Activation of Signal Transducer and Activator of Transcription 3 (STAT3) has been linked to several processes that are critical for oncogenic transformation, cancer progression, cancer cell proliferation, survival, drug resistance and metastasis. Inhibition of STAT3 signaling has shown a striking ability to inhibit cancer cell growth and therefore, STAT3 has become a promising target for anti-cancer drug development. The aim of this study was to identify novel inhibitors of STAT-dependent gene transcription...
2017: PloS One
https://www.readbyqxmd.com/read/28633640/biological-mechanisms-discriminating-growth-rate-and-adult-body-weight-phenotypes-in-two-chinese-indigenous-chicken-breeds
#8
Tengfei Dou, Sumei Zhao, Hua Rong, Dahai Gu, Qihua Li, Ying Huang, Zhiqiang Xu, Xiaohui Chu, Linli Tao, Lixian Liu, Changrong Ge, Marinus F W Te Pas, Junjing Jia
BACKGROUND: Intensive selection has resulted in increased growth rates and muscularity in broiler chickens, in addition to adverse effects, including delayed organ development, sudden death syndrome, and altered metabolic rates. The biological mechanisms underlying selection responses remain largely unknown. Non-artificially-selected indigenous Chinese chicken breeds display a wide variety of phenotypes, including differential growth rate, body weight, and muscularity. The Wuding chicken breed is a fast growing large chicken breed, and the Daweishan mini chicken breed is a slow growing small chicken breed...
June 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28630460/oxidative-and-endoplasmic-reticulum-stress-is-impaired-in-leukocytes-from-metabolically-unhealthy-vs-healthy-obese-individuals
#9
C Bañuls, S Rovira-Llopis, S Lopez-Domenech, N Diaz-Morales, A Blas-Garcia, S Veses, C Morillas, V M Victor, M Rocha, A Hernandez-Mijares
BACKGROUND: Oxidative stress and inflammation are related to obesity, but the influence of metabolic disturbances on these parameters and their relationship with endoplasmic reticulum (ER) stress is unknown. Therefore, this study was performed to evaluate whether metabolic profile influences ER and oxidative stress in an obese population with/without comorbidities. SUBJECTS AND METHODS: A total of 113 obese patients were enrolled in the study; 29 were metabolically healthy (MHO), 53 were metabolically abnormal (MAO), and 31 had type 2 diabetes (MADO)...
June 20, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28624363/brazilian-red-propolis-effects-on-peritoneal-macrophage-activity-nitric-oxide-cell-viability-pro-inflammatory-cytokines-and-gene-expression
#10
Bruno Bueno-Silva, Dione Kawamoto, Ellen S Ando-Suguimoto, Renato C V Casarin, Severino M Alencar, Pedro L Rosalen, Marcia P A Mayer
ETHNOPHARMACOLOGICAL RELEVANCE: Propolis has been used in folk medicine since ancient times and it presented inhibitory effect on neutrophil recruitment previously. However, its effect on macrophage obtained from mice remains unclear. AIM OF THE STUDY: To demonstrate BRP effects on LPS activated peritoneal macrophage. MATERIALS AND METHODS: Peritoneal macrophages, obtained from C57BL6 mice and activated with LPS, were treated with 50-80µg/mL of crude extract of Brazilian red propolis (BRP) during 48h...
June 15, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28623969/altered-gene-expression-in-human-placenta-after-suspected-preterm-labour
#11
D Oros, M Strunk, P Breton, C Paules, R Benito, E Moreno, M Garcés, J Godino, J Schoorlemmer
INTRODUCTION: Suspected preterm labour occurs in around 9% of pregnancies. However, almost two-thirds of women admitted for threatened preterm labour ultimately deliver at term and are considered risk-free for fetal development. METHODS: We examined placental and umbilical cord blood samples from preterm or term deliveries after threatened preterm labour as well as term deliveries without threatened preterm labour. We quantitatively analysed the mRNA expression of inflammatory markers (IL6, IFNγ, and TNFα) and modulators of angiogenesis (FGF2, PGF, VEGFA, VEGFB, and VEGFR1)...
July 2017: Placenta
https://www.readbyqxmd.com/read/28623741/oxidized-ldl-activated-eosinophil-polarize-macrophage-phenotype-from-m2-to-m1-through-activation-of-cd36-scavenger-receptor
#12
Minghui Qin, Lai Wang, Fuqiang Li, Mingjie Yang, Lei Song, Fang Tian, Ada Yukht, Prediman K Shah, Marc E Rothenberg, Behrooz G Sharifi
BACKGROUND AND AIMS: Inflammation, particularly innate immunity, plays an important role in cardiovascular diseases. The aim of this study was to investigate whether atherogenic determinants such as oxidized LDL modulate the phenotype of eosinophils. METHODS: Cultured eosinophils were treated with oxidized LDL and the expression of selective inflammatory and anti-inflammatory cytokines was determined. In addition, the eosinophil receptor and signaling that mediate these events were identified...
May 20, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28623178/adrenal-derived-stress-hormones-modulate-ozone-induced-lung-injury-and-inflammation
#13
Andres Henriquez, John House, Desinia B Miller, Samantha J Snow, Anna Fisher, Hongzu Ren, Mette C Schladweiler, Allen D Ledbetter, Fred Wright, Urmila P Kodavanti
Ozone-induced systemic effects are modulated through activation of the neuro-hormonal stress response pathway. Adrenal demedullation (DEMED) or bilateral total adrenalectomy (ADREX) inhibits systemic and pulmonary effects of acute ozone exposure. To understand the influence of adrenal-derived stress hormones in mediating ozone-induced lung injury/inflammation, we assessed global gene expression (mRNA sequencing) and selected proteins in lung tissues from male Wistar-Kyoto rats that underwent DEMED, ADREX, or sham surgery (SHAM) prior to their exposure to air or ozone (1ppm), 4h/day for 1 or 2days...
June 13, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28622381/cell-free-dna-release-by-mouse-placental-explants
#14
Mark Phillippe, Sharareh Adeli
Although suggested that "fetal" cell-free DNA (cfDNA) is derived from trophoblast cells, the exact origin is unclear. The studies in this report sought to demonstrate that placental tissue releases cfDNA in parallel with cell death, that the size range of cfDNA is similar to that found in maternal plasma, and that the cfDNA fragments are able to stimulate a proinflammatory cytokine response. Placentas were harvested from near term pregnant CD-1 mice and cultured in DMEM/Ham's F12/FBS media in 8% or 21% O2. After centrifugation to remove cells and cellular debris, the cfDNA was extracted from the media and quantified by DNA spectrophotometry...
2017: PloS One
https://www.readbyqxmd.com/read/28621688/radioresistance-of-mesenchymal-glioblastoma-initiating-cells-correlates-with-patient-outcome-and-is-associated-with-activation-of-inflammatory-program
#15
Elisabetta Stanzani, Fina Martínez-Soler, Teresa Martín Mateos, Noemi Vidal, Alberto Villanueva, Miquel Angel Pujana, Jordi Serra-Musach, Núria de la Iglesia, Pepita Giménez-Bonafé, Avelina Tortosa
Glioblastoma (GBM) still remains an incurable disease being radiotherapy (RT) the mainstay treatment. Glioblastoma intra-tumoral heterogeneity and Glioblastoma-Initiating Cells (GICs) challenge the design of effective therapies. We investigated GICs and non-GICs response to RT in a paired in-vitro model and addressed molecular programs activated in GICs after RT. Established GICs heterogeneously expressed several GICs markers and displayed a mesenchymal signature. Upon fractionated RT, GICs reported higher radioresistance compared to non-GICs and showed lower α- and β-values, according to the Linear Quadratic Model interpretation of the survival curves...
June 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28620375/comparative-gene-expression-analysis-of-lymphocytes-treated-with-exosomes-derived-from-ovarian-cancer-and-ovarian-cysts
#16
Yujuan Li, Yang Yang, Aiwei Xiong, Xiaoqin Wu, Jingyan Xie, Suping Han, Shuli Zhao
Cancer cells employ many strategies to evade immune defense and to facilitate tumor growth and angiogenesis. As a novel mode of intercellular communication, cancer-derived exosomes contribute to the recruitment and mediation of lymphocytes within the tumor environment. However, the mechanisms and key molecules mediating the effect of exosomes on lymphocytes are unclear. We treated healthy peripheral blood lymphocytes with exosomes from ovarian cancer and ovarian cysts and screened for differentially expressed genes using the RT(2) Profiler Cancer Inflammation and Immunity Crosstalk PCR Array...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28620279/interleukin-6-deficiency-attenuates-retinal-ganglion-cell-axonopathy-and-glaucoma-related-vision-loss
#17
Franklin D Echevarria, Cathryn R Formichella, Rebecca M Sappington
The pleotropic cytokine interleukin-6 (IL-6) is implicated in retinal ganglion cell (RGC) survival and degeneration, including that associated with glaucoma. IL-6 protects RGCs from pressure-induced apoptosis in vitro. However, it is unknown how IL-6 impacts glaucomatous degeneration in vivo. To study how IL-6 influences glaucomatous RGC axonopathy, accompanying glial reactivity, and resultant deficits in visual function, we performed neural tracing, histological, and neurobehavioral assessments in wildtype (B6;129SF2/J; WT) and IL-6 knock-out mice (B6;129S2-IL6(t)(m1kopf)/J; IL-6-/-) after 8 weeks of unilateral or bilateral microbead-induced glaucoma (microbead occlusion model)...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28618322/multiple-inflammatory-markers-and-15-year-incident-adl-disability-in-admixed-older-adults-the-bambui-epigen-study
#18
Maria Fernanda Lima-Costa, Juliana V M Mambrini, Karen C L Torres, Sérgio V Peixoto, Fabíola B Andrade, Cesar De Oliveira, Eduardo Tarazona-Santos, Andrea Teixeira-Carvalho, Olindo A Martins-Filho
BACKGROUND: The ability of inflammatory markers to predict disability in later life has received growing attention. However, the current evidence came predominantly from Caucasians and the role of genomic ancestry has not been investigated. OBJECTIVE: We investigated the prognostic value of multiple citokynes and chemokines for incident disability in admixed older Brazilians and whether genomic African and Native American ancestry affects the association. DESIGN: Population-based longitudinal study...
June 7, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28618162/zeb1-regulated-inflammatory-phenotype-in-breast-cancer-cells
#19
Akihiro Katsura, Yusuke Tamura, Satoshi Hokari, Mayumi Harada, Masato Morikawa, Tsubasa Sakurai, Kei Takahashi, Anna Mizutani, Jun Nishida, Yuichiro Yokoyama, Yasuyuki Morishita, Takashi Murakami, Shogo Ehata, Kohei Miyazono, Daizo Koinuma
Zinc finger E-box binding protein 1 (ZEB1) and ZEB2 induce epithelial-mesenchymal transition (EMT) and enhance cancer progression. However, the global view of transcriptional regulation by ZEB1 and ZEB2 is yet to be elucidated. Here, we identified a ZEB1-regulated inflammatory phenotype in breast cancer cells using chromatin immunoprecipitation-sequencing and RNA sequencing, followed by gene set enrichment analysis (GSEA) of ZEB1-bound genes. Knockdown of ZEB1 and/or ZEB2 resulted in the down-regulation of genes encoding inflammatory cytokines related to poor prognosis in cancer patients, including IL6 and IL8, therefore suggesting that ZEB1 and ZEB2 have similar functions in terms of the regulation of production of inflammatory cytokines...
June 15, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28617818/proteome-profiling-in-il-1%C3%AE-and-vegf-activated-human-umbilical-vein-endothelial-cells-delineates-the-interlink-between-inflammation-and-angiogenesis
#20
Thomas Mohr, Verena Haudek-Prinz, Astrid Slany, Johannes Grillari, Michael Micksche, Christopher Gerner
Endothelial cells represent major effectors in inflammation and angiogenesis, processes that drive a multitude of pathological states such as atherosclerosis and cancer. Both inflammation and angiogenesis are interconnected with each other in the sense that many pro-inflammatory proteins possess proangiogenic properties and vice versa. To elucidate this interplay further, we present a comparative proteome study of inflammatory and angiogenic activated endothelial cells. HUVEC were stimulated with interleukin 1-β and VEGF, respectively...
2017: PloS One
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