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https://www.readbyqxmd.com/read/28650209/the-intestinal-barrier-a-fundamental-role-in-health-and-disease
#1
Maaike Vancamelbeke, Séverine Vermeire
The gastrointestinal mucosa constitutes a critical barrier where millions of microbes and environmental antigens come in close contact with the host immune system. Intestinal barrier defects have been associated with a broad range of diseases and therefore denote a new therapeutic target. Areas covered: This review is based on an extensive literature search in PubMed of how the intestinal barrier contributes to health and as a trigger for disease. It discusses the anatomy of the intestinal barrier and explains the available methods to evaluate its function...
June 26, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28649127/the-novel-%C3%AE-glucan-ycp-improves-the-survival-rates-and-symptoms-in-septic-mice-by-regulating-myeloid-derived-suppressor-cells
#2
Dan Liu, Ming You, Guang-Feng Zhao, Xiu-Jun Li, Yu-Xian Song, Huan Dou, Wen-Bing Yao, Xiang-Dong Gao, Ya-Yi Hou
Sepsis is a life-threatening health condition that is initially characterized by uncontrolled inflammation, followed by the development of persistent immunosuppression. YCP is a novel α-glucan purified from the mycelium of the marine fungus Phoma herbarum YS4108, which has displayed strong antitumor activity via enhancing host immune responses. In this study, we investigated whether YCP could influence the development of sepsis in a mouse model. Caecal ligation and puncture (CLP)-induced sepsis was established in mice that were treated with YCP (20 mg/kg, ip or iv) 2 h before, 4 and 24 h after the CLP procedure, and then every other day...
June 26, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28646428/effects-of-carvacrol-on-survival-mesenteric-blood-flow-aortic-function-and-multiple-organ-injury-in-a-murine-model-of-polymicrobial-sepsis
#3
Erdem Kamil Ozer, Mustafa Tugrul Goktas, Aysun Toker, Hulagu Bariskaner, Ceyhan Ugurluoglu, Alper Bektas Iskit
Carvacrol (CRV) has strong cytoprotective, antioxidant, and anti-inflammatory properties. We aimed to demonstrate the possible protective effects of CRV on survival, mesenteric artery blood flow (MBF), vascular reactivity, and oxidative and inflammatory injuries in a murine model of polymicrobial sepsis induced by cecal ligation and puncture (CLP). Wistar rats were allocated into the following four groups: Sham, CLP, Sham + CRV, and CLP + CRV. The animals were orally administered with CRV (80 mg/kg/day) or vehicle (corn oil; 1 mL/kg/day) for 7 days...
June 23, 2017: Inflammation
https://www.readbyqxmd.com/read/28645576/mechanisms-of-hepatocellular-toxicity-associated-with-new-psychoactive-synthetic-cathinones
#4
Dino Luethi, Matthias E Liechti, Stephan Krähenbühl
Synthetic cathinones are a new class of psychostimulant substances. Rarely, they can cause liver injury but associated mechanisms are not completely elucidated. In order to increase our knowledge about mechanisms of hepatotoxicity, we investigated the effect of five frequently used cathinones on two human cell lines. Bupropion was included as structurally related drug used therapeutically. In HepG2 cells, bupropion, MDPV, mephedrone and naphyrone depleted the cellular ATP content at lower concentrations (0...
June 20, 2017: Toxicology
https://www.readbyqxmd.com/read/28640223/non-targeted-metabolomics-analysis-of-the-effects-of-tyrosine-kinase-inhibitors-sunitinib-and-erlotinib-on-heart-muscle-liver-and-serum-metabolism-in-vivo
#5
Brian C Jensen, Traci L Parry, Wei Huang, Amro Ilaiwy, James R Bain, Michael J Muehlbauer, Sara K O'Neal, Cam Patterson, Gary L Johnson, Monte S Willis
Background: More than 90 tyrosine kinases have been implicated in the pathogenesis of malignant transformation and tumor angiogenesis. Tyrosine kinase inhibitors (TKIs) have emerged as effective therapies in treating cancer by exploiting this kinase dependency. The TKI erlotinib targets the epidermal growth factor receptor (EGFR), whereas sunitinib targets primarily vascular endothelial growth factor receptor (VEGFR) and platelet-derived growth factor receptor (PDGFR).TKIs that impact the function of non-malignant cells and have on- and off-target toxicities, including cardiotoxicities...
June 22, 2017: Metabolites
https://www.readbyqxmd.com/read/28637903/involvement-of-nk-cells-in-il-28b-mediated-immunity-against-influenza-virus-infection
#6
Yanshi Wang, Tingting Li, Yongyan Chen, Haiming Wei, Rui Sun, Zhigang Tian
IL-28B is a member of the newly discovered type III IFN family and exhibits unique antiviral properties compared with other family members. NK cells play a critical role in defending against viruses; however, little is known about the role of IL-28B in NK cell function. In a mouse model of influenza A virus (mouse adapted influenza A/PR/8/34 strain) infection, long-term overexpression of IL-28B induced by hepatocyte-specific gene delivery exerted a strong antiviral effect in the presence of NK cells. In IL-28B-overexpressing wild-type mice, the percentages and absolute numbers of NK cells in the spleen, liver, and lung were markedly increased, with higher proliferation and accelerated NK cell maturation based on phenotypes staining with CD11b and CD27 or CD11b and KLRG1...
June 21, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28633424/three-dimensional-3d-heparg-spheroid-model-with-physiologically-relevant-xenobiotic-metabolism-competence-and-hepatocyte-functionality-for-liver-toxicity-screening
#7
Sreenivasa C Ramaiahgari, Suramya Waidyanatha, Darlene Dixon, Michael J DeVito, Richard S Paules, Stephen S Ferguson
Effective prediction of human responses to chemical and drug exposure is of critical importance in environmental toxicology research and drug development. While significant progress has been made to address this challenge using in vitro liver models, these approaches often fail due to inadequate tissue model functionality. Herein, we describe the development, optimization, and characterization of a novel three-dimensional (3D) spheroid model using differentiated HepaRG cells that achieve and maintain physiologically-relevant levels of xenobiotic metabolism (CYP1A2, CYP2B6, and CYP3A4/5)...
June 15, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28626734/beneficial-effect-of-maintaining-hepatic-reserve-during-chemotherapy-on-the-outcomes-of-patients-with-hepatocellular-carcinoma
#8
Takeshi Terashima, Tatsuya Yamashita, Kuniaki Arai, Kazunori Kawaguchi, Kazuya Kitamura, Taro Yamashita, Yoshio Sakai, Eishiro Mizukoshi, Masao Honda, Shuichi Kaneko
Hepatocellular carcinoma (HCC) usually develops in chronically damaged liver. We investigated hepatic reserves during chemotherapy of patients with advanced HCC and compensated liver function to evaluate the effect on patients' outcomes of maintaining hepatic reserve after chemotherapy. We retrospectively reviewed the medical records of 190 patients with Child-Pugh A with advanced HCC who were treated with sorafenib or hepatic arterial infusion chemotherapy (HAIC). We investigated the Child-Pugh score and albumin-bilirubin grade for hepatic reserve, and evaluated the effect of the change in Child-Pugh scores on patients' outcomes...
June 2017: Liver Cancer
https://www.readbyqxmd.com/read/28626497/hepatoprotective-effect-of-polyphenol-enriched-fraction-from-folium-microcos-on-oxidative-stress-and-apoptosis-in-acetaminophen-induced-liver-injury-in-mice
#9
Hongtan Wu, Gang Zhang, Lisen Huang, Haiyue Pang, Na Zhang, Yupei Chen, Gueyhorng Wang
Folium Microcos (FM), the leaves of Microcos paniculata L., shows various biological functions including antioxidant activity and α-glucosidase inhibitory effect. However, its therapeutic potential in acute liver injury is still unknown. This study investigated the hepatoprotective effect and underlying mechanisms of the polyphenol-enriched fraction (FMF) from Folium Microcos. FMF exhibited strong free radical scavenging activities and prevented HepG2/Hepa1-6 cells from hydrogen peroxide- (H2O2-) induced ROS production and apoptosis in vitro...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28625255/-effect-of-vitamin-d3-on-the-severity-and-prognosis-of-patients-with-sepsis-a-prospective-randomized-double-blind-placebo-study
#10
Fulai Ding, Bin Zang, Jiahong Fu, Kaiqiang Ji
OBJECTIVE: To observe the relationship between vitamin D3 and the severity as well as prognosis in patients with sepsis, and to explore whether exogenous vitamin D3 can improve the prognosis in patients with sepsis. METHODS: A prospective randomized double-blind placebo study was conducted. Fifty-seven patients with sepsis admitted to intensive care unit (ICU) of Shengjing Hospital Affiliated to China Medical University from March to November in 2015 were enrolled...
February 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28622357/protective-effect-of-aplysin-on-liver-tissue-and-the-gut-microbiota-in-alcohol-fed-rats
#11
Meilan Xue, Ying Liu, Rui Lyu, Na Ge, Man Liu, Yan Ma, Hui Liang
BACKGROUND: This study investigated the protective effect of aplysin on the liver and its influence on inflammation and the gut microbiota in rats with ethanol-induced liver injury. METHODS: Male Sprague-Dawley rats were randomly assigned to an alcohol-containing liquid diet, control liquid diet or treatment with aplysin for 8 weeks. Hepatic and intestinal histopathological analysis was performed, and cytokine levels and the intestinal mucosal barrier were assessed...
2017: PloS One
https://www.readbyqxmd.com/read/28620647/the-effect-and-safety-of-prostaglandin-administration-in-pediatric-liver-transplantation
#12
Céline Lironi, Valérie A McLin, Barbara E Wildhaber
BACKGROUND: Prostaglandins are often administered after liver transplantation (LT) to diminish ischemia-reperfusion injury (IRI), to favor liver recovery and to prevent vascular thrombosis. Possible beneficial effects in adult liver recipients are controversial, but the single existing pediatric small case series shows no significant impact of prostaglandin administration after LT. The purpose of this study was to analyze the effect of the prostaglandin dinoprostone in pediatric liver recipients...
June 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28620644/topical-application-of-mesenchymal-stromal-cells-ameliorated-liver-parenchyma-damage-after-ischemia-reperfusion-injury-in-an-animal-model
#13
Ping Kuen Lam, Charing Ching Ning Chong, Anthony Wing Ip Lo, Anthony Wing Hung Chan, Cindy See Wai Tong, Don Wai Ching Chin, Kenneth Hoi Kin Wong, Richard Kwong Wai Choy, Andrew Kai-Yip Fung, Yi Xiang Wang, Ka Fai To, Paul Bo San Lai
BACKGROUND: Ischemia-reperfusion injury (IRI) is commonly encountered after liver surgery. This study evaluated the hepatoprotective effects of topically applied adipose-derived mesenchymal stromal cells (ADMSCs) on hepatic IRI in a rat model. METHODS: ADMSCs from transgenic green fluorescent protein Sprague-Dawley rats were topically applied to the liver surface of Sprague-Dawley rats after hepatic IRI and fixed in position by fibrin glue (group A, n = 24). An equivalent amount of ADMSCs were administered through the portal (group B, n = 24) or tail vein (group C, n = 24)...
June 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28619711/igfbp7-deletion-promotes-hepatocellular-carcinoma
#14
Maaged Akiel, Chunqing Guo, Xia Li, Devaraja Rajasekaran, Rachel G Mendoza, Chadia L Robertson, Nidhi Jariwala, Fang Yuan, Mark A Subler, Jolene Windle, Dawn K Garcia, Zhao Lai, Hung-I Harry Chen, Yidong Chen, Shah Giashuddin, Paul B Fisher, Xiang-Yang Wang, Devanand Sarkar
Activation of IGF signaling is a major oncogenic event in diverse cancers, including hepatocellular carcinoma (HCC). In this setting, the insulin-like growth factor binding protein IGFBP7 inhibits IGF signaling by binding the IGF-1 receptor (IGF-1R), functioning as a candidate tumor suppressor. IGFBP7 abrogates tumors by inhibiting angiogenesis and inducing cancer-specific senescence and apoptosis. Here we report that Igfbp7-deficient mice exhibit constitutively active IGF signaling, presenting with pro-inflammatory and immunosuppressive microenvironments and spontaneous liver and lung tumors occurring with increased incidence in carcinogen-treated subjects...
June 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28618656/role-of-growth-factor-receptor-bound-2-in-ccl4-induced-hepatic-fibrosis
#15
Shanfei Ge, Ying Xiong, Xiaoping Wu, Jianping Xie, Fei Liu, Jinni He, Tianxing Xiang, Na Cheng, Lingling Lai, Yuanbin Zhong
BACKGROUND: Growth Factor Receptor-bound 2 (GRB2) plays a crucial role in regulation of cellular function including proliferation and differentiation, and we previously identified GRB2 as promoting HSCs (HSCs) proliferation. However, the underlying mechanisms that are involving in the regulation of GRB2 in hepatic fibrogenesis remain unknown. METHODS: In the present study, we tested the function of GRB2 in hepatic fibrosis. Hepatic fibrosis was induced by subcutaneous CCl4 administration at a dose of 3mL/kg in rats...
August 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28616794/long-term-survival-after-multidisciplinary-therapy-for-residual-gallbladder-cancer-with-peritoneal-dissemination-a-case-report
#16
Daisuke Kuga, Tomoki Ebata, Yukihiro Yokoyama, Tsuyoshi Igami, Gen Sugawara, Takashi Mizuno, Junpei Yamaguchi, Masato Nagino
BACKGROUND: Although surgical resection is the only curative treatment for gallbladder cancer (GBC), concomitant peritoneal dissemination is considered far beyond the scope of resection. We report a long-term survivor with a residual GBC with multiple peritoneal disseminations who underwent an extended resection after effective chemotherapy. CASE PRESENTATION: A 59-year-old male underwent an open cholecystectomy for Mirizzi syndrome at a local hospital. Because of severe inflammation, the gallbladder was perforated during surgery, ending in a piecemeal resection...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28612573/-effects-of-danqi-capsule-on-platelet-function-in-healthy-people
#17
Li-Qin Ling, Juan Liao, Chong-Wei Zhang, Qian Niu, Hong Jiang, Jing Zhou
OBJECTIVES: To study the effects of Danqi Capsule on platelet function in healthy people. METHODS: Sixteen healthy volunteer were divided into low dose (4 capsules/time, 3 times/d) and high dose group (6 capsules/time, 3 times/d), and received Danqi Capsule by orally administration for 2 weeks. The venous blood were collect at 3 time points: one week before taking Danqi Capsule (control), one week after taking Danqi Capsule (1 week), two week after taking Danqi Capsule (2 weeks)...
January 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28611861/effects-of-six-kinds-of-sodium-glucose-cotransporter-2-inhibitors-on-metabolic-parameters-and-summarized-effect-and-its-correlations-with-baseline-data
#18
Hidekatsu Yanai, Mariko Hakoshima, Hiroki Adachi, Akiko Kawaguchi, Yoko Waragai, Tadanao Harigae, Yoshinori Masui, Kouki Kakuta, Hidetaka Hamasaki, Hisayuki Katsuyama, Tomoko Kaga, Akahito Sako
BACKGROUND: Sodium-glucose cotransporter 2 inhibitor (SGLT2i) blocks reabsorption of glucose by inhibiting SGLT2 in kidney, promotes the renal excretion of glucose and improves blood glucose control without requiring insulin secretion. Anti-atherosclerotic effects of SGLT2is have not been fully elucidated until today. METHODS: We retrospectively picked up patients with type 2 diabetes who had been continuously prescribed SGLT2i for 3 months or more between April 2014 and December 2016 by a chart-based analysis, and compared metabolic parameters including coronary risk factors before the SGLT2i treatment with the data at 3 and 6 months after the SGLT2i treatment started...
July 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28607454/insulin-sparing-and-fungible-effects-of-e4orf1-combined-with-an-adipocyte-targeting-sequence-in-mouse-models-of-type-1-and-type-2-diabetes
#19
I-S Yoon, S Park, R-H Kim, H L Ko, J-H Nam
Obesity impairs glycemic control and causes insulin resistance and type 2 diabetes. Adenovirus 36 (Ad36) infection can increase the uptake of excess glucose from blood into adipocytes by increasing GLUT4 translocation through the Ras-Akt signaling pathway, which bypasses PI3K-Akt-mediated insulin receptor signaling. E4orf1, a viral gene expressed early during Ad36 infection, is responsible for this insulin-sparing effect and may be an alternative target for improving insulin resistance. To deliver the gene to adipocytes only, we connected the adipocyte-targeting sequence (ATS) to the 5' end of E4orf1 (ATS-E4orf1)...
June 13, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28605657/muscle-as-a-paracrine-and-endocrine-organ
#20
REVIEW
Jimena Giudice, Joan M Taylor
Skeletal muscle cells are highly abundant and metabolically active and are known to 'communicate' their energy demands to other organs through active secretion. Muscle-derived secretory proteins include a variety of cytokines and peptides collectively referred to as 'myokines' that exert autocrine, paracrine or endocrine effects. Analyses of the skeletal muscle secretome revealed that numerous myokines are secreted in response to contraction or strength training, and that these factors not only regulate energy demand but also contribute to the broad beneficial effects of exercise on cardiovascular, metabolic, and mental health...
June 9, 2017: Current Opinion in Pharmacology
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