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https://www.readbyqxmd.com/read/28807664/social-interaction-modulates-the-neuroinflammatory-response-to-global-cerebral-ischemia-in-male-mice
#1
Monica M Gaudier-Diaz, Ning Zhang, Adam H Haines, Surbhi, Min Zhou, A Courtney DeVries
Social isolation is a risk factor for cardiovascular and cerebrovascular diseases, although the underlying mechanisms remain underspecified. Considering the potential of microglia to become sensitized by stressors and their role in neuroinflammation, we hypothesized that social isolation primes microglia, resulting in an exaggerated neuroimmune response to experimental cerebral ischemia. First, major histocompatibility complex II (MHC II) gene expression, an indicator of microglial priming, was compared between mice that were socially isolated or pair-housed...
August 11, 2017: Brain Research
https://www.readbyqxmd.com/read/28807207/effect-of-bevacizumab-on-acetic-acid-induced-ulcerative-colitis-in-rats
#2
Zeki Ozsoy, Seyma Ozsoy, Fikret Gevrek, Emre Demir, Ismail Benli, Emin Daldal, Erdinc Yenidogan
BACKGROUND: The aim of this study was to examine the effect of intraperitoneally administered bevacizumab on colitis induced by acetic acid. METHODS: An experimental model of acetic acid-induced colitis was introduced in rats. After the induction of colitis, bevacizumab was administered intraperitoneally at two different daily doses of low (2.5 mg/kg) or high (5 mg/kg) concentration. Control groups were included for colitis and bevacizumab. After 7 d, the rats were sacrificed, and colonic tissues were harvested for macroscopic and microscopic examination of colonic damage...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28807034/exosomes-from-embryonic-mesenchymal-stem-cells-alleviate-osteoarthritis-through-balancing-synthesis-and-degradation-of-cartilage-extracellular-matrix
#3
Yafei Wang, Dongsheng Yu, Zhiming Liu, Fang Zhou, Jun Dai, Bingbing Wu, Jing Zhou, Boon Chin Heng, Xiao Hui Zou, Hongwei Ouyang, Hua Liu
BACKGROUND: Mesenchymal stem cell therapy for osteoarthritis (OA) has been widely investigated, but the mechanisms are still unclear. Exosomes that serve as carriers of genetic information have been implicated in many diseases and are known to participate in many physiological processes. Here, we investigate the therapeutic potential of exosomes from human embryonic stem cell-induced mesenchymal stem cells (ESC-MSCs) in alleviating osteoarthritis (OA). METHODS: Exosomes were harvested from conditioned culture media of ESC-MSCs by a sequential centrifugation process...
August 14, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28797292/the-ethanol-extract-of-aquilariae-lignum-ameliorates-hippocampal-oxidative-stress-in-a-repeated-restraint-stress-mouse-model
#4
Hyun-Yong Lee, Jin-Seok Lee, Hyeong-Geug Kim, Won-Yong Kim, Seung-Bae Lee, Yung-Hyun Choi, Chang-Gue Son
BACKGROUND: Chronic stress contributes to the development of brain disorders, such as neurodegenerative and psychiatric diseases. Oxidative damage is well known as a causative factor for pathogenic process in brain tissues. The aim of this study is to evaluate the neuroprotective effect of a 30% ethanol extract of Aquilariae Lignum (ALE) in repeated stress-induced hippocampal oxidative injury. METHODS: Fifty BALB/c male mice (12 weeks old) were randomly divided into five groups (n = 10)...
August 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28794421/beta-hydroxybutyrate-an-endogenic-nlrp3-inflammasome-inhibitor-attenuates-stress-induced-behavioral-and-inflammatory-responses
#5
Takehiko Yamanashi, Masaaki Iwata, Naho Kamiya, Kyohei Tsunetomi, Naofumi Kajitani, Nodoka Wada, Takahiro Iitsuka, Takahira Yamauchi, Akihiko Miura, Shenghong Pu, Yukihiko Shirayama, Ken Watanabe, Ronald S Duman, Koichi Kaneko
Neuro-inflammation has been shown to play a critical role in the development of depression. Beta-hydroxybutyrate (BHB) is a ketone body and has recently been reported to exert anti-inflammatory effects via inhibition of NLRP3 inflammasome. Here, we investigated the potential antidepressant and anti-inflammatory effects of BHB on rats exposed to acute and chronic stress. We examined the influence of repeated BHB administration on depressive and anxiety behaviors in a rodent model of chronic unpredictable stress (CUS)...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28794034/an-epstein-barr-virus-microrna-blocks-il-1-signaling-by-targeting-the-interleukin-1-receptor-1
#6
Camille M Skinner, Nikita S Ivanov, Sarah A Barr, Yan Chen, Rebecca L Skalsky
Epstein-Barr virus (EBV) encodes >44 viral microRNAs (miRNAs) that are differentially expressed throughout infection, can be detected in EBV-positive tumors, and manipulate several biological processes including cell proliferation, apoptosis, and immune responses. Here, we show that EBV BHRF1-2 miRNAs block NF-kB activation following treatment with pro-inflammatory cytokines, specifically interleukin-1 beta. Analysis of EBV PAR-CLIP miRNA targetome datasets combined with pathway analysis revealed multiple BHRF1-2 miRNA targets involved in interleukin signaling pathways...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28793178/ultraviolet-and-infrared-induced-11-beta-hydroxysteroid-dehydrogenase-type-1-activating-skin-photoaging-is-inhibited-by-red-ginseng-extract-containing-high-concentrations-of-ginsenoside-rg3-s
#7
Jin-Ju Nam, Ji-Eun Min, Min-Ho Son, Jin-Hwan Oh, Seunghyun Kang
BACKGROUND: Sun irradiation is one of major extrinsic stressors responsible for premature skin aging through activation and expression of 11 beta hydroxysteroid dehydrogenase type 1 (11β-HSD1), which converts inactive cortisone to active cortisol. The aim of this study was to evaluate the inhibitory effects of red ginseng extract containing high concentrations of ginsenoside Rg3(S) (GERg3) on 11β-HSD1-induced skin photoaging. METHODS: To evaluate the inhibitory effects of GERg3 on ultraviolet (UV) or infrared (IR)-induced skin photoaging, human dermal fibroblasts or a normal human 3D skin model were exposed to UV or an IR...
August 9, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28791391/a20-protein-regulates-lipopolysaccharide-induced-acute-lung-injury-by-downregulation-of-nf-%C3%AE%C2%BAb-and-macrophage-polarization-in-rats
#8
Ying Wang, Zhenju Song, Jing Bi, Jie Liu, Lin Tong, Yuanlin Song, Chunxue Bai, Xiaodan Zhu
Modulation of inflammation is a crucial component of the development of acute lung injury. A20, a ubiquitin editing enzyme, may regulate cellular inflammatory reactions, particularly those involving the signaling pathway of nuclear factor NF-κB (NF‑κB). The present study investigated the mechanism by which A20 downregulated NF‑κB and further contributed to macrophage polarization from the M1 to M2 phenotypes in lipopolysaccharide (LPS)‑induced lung injury. Sprague‑Dawley rats injected with LPS were used in the present study...
August 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28782622/banxia-houpu-decoction-restores-glucose-intolerance-in-cums-rats-through-improvement-of-insulin-signaling-and-suppression-of-nlrp3-inflammasome-activation-in-liver-and-brain
#9
Ke-Ke Jia, Yan-Jing Zheng, Yan-Xiu Zhang, Jia-Hui Liu, Rui-Qing Jiao, Ying Pan, Ling-Dong Kong
ETHNOPHARMACOLOGICAL RELEVANCE: Banxia-houpu decoction is a famous formula in traditional Chinese medicine (TCM) with the powerful anti-depressant activity. AIM OF THE STUDY: This study aimed to investigate the effect of Banxia-houpu decoction on glucose intolerance associated with anhedonia in chronic unpredictable mild stress (CUMS) rats, then to explore its underlying pharmacological mechanisms. MATERIALS AND METHODS: After 6-week CUMS procedure, male Wistar rats were given Banxia-houpu decoction (3...
August 4, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28766672/seabuckthorn-berry-polysaccharide-protects-against-carbon-tetrachloride-induced-hepatotoxicity-in-mice-via-anti-oxidative-and-anti-inflammatory-activities
#10
Wei Zhang, Xiaohui Zhang, Kai Zou, Jiming Xie, Shimin Zhao, Jingran Liu, Huan Liu, Jinling Wang, Yuzhen Wang
The berries of Seabuckthorn (Hippophae rhamnoides L.) are traditional medicinal foods that have been used by Tibetans and Mongolians for thousands of years. The polysaccharides are the main components of Seabuckthorn berries, possessing immune stimulating, anti-cancer and anti-fatigue activities. The present study focused on evaluating the protective effects and mechanisms of Seabuckthorn berry polysaccharide (SP) against carbon tetrachloride (CCl4)-induced hepatotoxicity. Mice were orally administrated with 50, 100 and 200 mg kg(-1) of SP once daily for 14 consecutive days prior to CCl4 challenge...
August 2, 2017: Food & Function
https://www.readbyqxmd.com/read/28754350/beneficial-metabolic-effects-of-dietary-epigallocatechin-gallate-alone-and-in-combination-with-exendin-4-in-high-fat-diabetic-mice
#11
Nupur M Pathak, Paul J B Millar, Varun Pathak, Peter R Flatt, Victor A Gault
OBJECTIVE: Significant attempts are being made to generate multifunctional, hybrid or peptide combinations as novel therapeutic strategies for type 2 diabetes, however this presents key challenges including design and pharmaceutical development. In this study, we evaluated metabolic properties of oral nutritional supplement epigallocatechin gallate (EGCG) in combination with GLP-1 agonist exendin-4 in a mouse model of dietary-induced diabetes and obesity. METHODS: EGCG, exendin-4 or combination of both were administered twice-daily over 28 days to high fat (HF) mice on background of low-dose streptozotocin...
July 25, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28754339/interleukin-1-receptor-knockout-mice-develop-epidermal-cysts-and-show-an-altered-innate-immune-response-following-exposure-to-ultraviolet-b-radiation
#12
Nikhil N Kulkarni, Christopher A Adase, Ling-Juan Zhang, Andrew W Borkowski, Fengwu Li, James A Sanford, Daniel J Coleman, Carlos Aguilera, Arup K Indra, Richard L Gallo
In this study, we observed that mice lacking the interleukin 1 receptor (IL1r(-/-)), or deficient in interleukin 1-beta (IL1-β), developed multiple epidermal cysts after chronic ultraviolet B (UVB) exposure. Cysts that developed in IL1r(-/-) mice were characterized by the presence of the hair follicle marker Sox 9, keratins (K10 and K14) and normal melanocyte distribution and retinoid X receptor α (RXR α) expression. The increased incidence of cysts in IL1r(-/-) mice was associated with less skin inflammation as characterized by decreased recruitment of macrophages, and their skin also maintained epidermal barrier function compared to wild-type mice...
July 25, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28753918/the-anti-inflammatory-properties-of-citrus-wilsonii-tanaka-extract-in-lps-induced-raw-264-7-and-primary-mouse-bone-marrow-derived-dendritic-cells
#13
Liping Cheng, Yujie Ren, Dingbo Lin, Shu'ang Peng, Bo Zhong, Zhaocheng Ma
'Zhique' (Citrus wilsonii Tanaka) is a traditional Chinese medicine. Its fruits have been used to treat inflammation-related symptoms, such as cough and sputum, though the underlying mechanism remains poorly understood. The aim of this study was to investigate the anti-inflammatory properties of 'Zhique' pulp extract (ZQE) in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages and primary mouse bone marrow-derived dendritic cells (BMDCs). The flavonoid profiles of the ZQE were determined by high performance liquid chromatography...
July 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28751018/deletion-of-the-p2x4-receptor-is-neuroprotective-acutely-but-induces-a-depressive-phenotype-during-recovery-from-ischemic-stroke
#14
Rajkumar Verma, Chunxia G Cronin, Jacob Hudobenko, Venugopal R Venna, Louise D McCullough, Bruce T Liang
INTRODUCTION: Acute ischemic injury leads to severe neuronal loss. One of the key mechanisms responsible for this effect is inflammation, which is characterized by the activation of myeloid cells, including resident microglia and infiltrating monocytes/macrophages. P2X4 receptors (P2X4Rs) present on these immune cells modulate the inflammatory response. For example, excessive release of adenosine triphosphate during acute ischemic stroke triggers stimulation of P2X4Rs, leading to myeloid cell activation and proliferation and further exacerbating post-ischemic inflammation...
July 24, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28747868/protective-effect-of-momordica-charantia-water-extract-against-liver-injury-in-restraint-stressed-mice-and-the-underlying-mechanism
#15
Yuanyuan Deng, Qin Tang, Yan Zhang, Ruifen Zhang, Zhencheng Wei, Xiaojun Tang, Mingwei Zhang
Background: Momordica charantia is used in China for its jianghuo (heat-clearing and detoxifying) effects. The concept of shanghuo (the antonym of jianghuo, excessive internal heat) in traditional Chinese medicine is considered a type of stress response of the body. The stress process involves internal organs, especially the liver. Objective: We hypothesized that Momordica charantia water extract (MWE) has a hepatoprotective effect and can protect the body from stress. The aim of this study was to investigate the possible effects of MWE against liver injury in restraint-stressed mice...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28747035/elevated-circulating-il-32-presents-a-poor-prognostic-outcome-in-patients-with-heart-failure-after-myocardial-infarction
#16
Wanling Xuan, Weixing Huang, Ruijie Wang, Chang Chen, Yequn Chen, Yan Wang, Xuerui Tan
BACKGROUND: Interleukin-32 (IL-32) is a newly discovered proinflammatory cytokine. However, there are limited data regarding IL-32 as a biomarker for heart failure (HF). In this study, we assessed the prognostic value of IL-32 in patients with chronic HF after myocardial infarction (MI). METHODS AND RESULTS: Over a period of 1.8years, we prospectively enrolled 100 patients with chronic HF after MI. IL-32, NT-proBNP, Matrix metallopeptidase 9 (MMP-9), procollagen type I (PI) and type III (PIII) were measured at baseline...
September 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28744817/knockdown-of-prmt1-suppresses-il-1%C3%AE-induced-cartilage-degradation-and-inflammatory-responses-in-human-chondrocytes-through-gli1-mediated-hedgehog-signaling-pathway
#17
Lei Xia, Hong-Xing Zhang, Mei-Li Xing, Yu-Ben Xu, Peng Li, Liang-Ku Huang, Jie Bai, Zhao Tian, Zan-Dong Zhao
Osteoarthritis (OA) is characterized by articular cartilage degradation and joint inflammation. The purpose of the present study is to elucidate the role of the specific function of PRMT1 in chondrocytes and its association with the pathophysiology of OA. We observed that the expression of PRMT1 was apparently upregulated in OA cartilage, as well as in chondrocytes stimulated with IL-1β. Additionally, knockdown of PRMT1 suppressed interleukin 1 beta (IL-1β)-induced extracellular matrix (ECM) metabolic imbalance by regulating the expression of MMP-13, ADAMTS-5, COL2A1, and ACAN...
July 25, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28721329/effect-of-different-crown-materials-on-the-interleukin-one-beta-content-of-gingival-crevicular-fluid-in-endodontically-treated-molars-an-original-research
#18
Prathibha Saravanakumar, Padmanabhan Thallam Veeravalli, Anand Kumar V, Kasim Mohamed, Umamaheswari Mani, Manita Grover, Saravanan Thirumalai Thangarajan
INTRODUCTION: Crown materials used in fixed prosthodontics come into close and prolonged contact with the gingiva. OBJECTIVE: The purpose of this study was to evaluate the effect of different crown materials on the interleukin-one beta (IL-1β) content of the gingival crevicular fluid and to study which crown material causes the highest inflammation on the marginal gingiva on a biochemical basis. MATERIALS AND METHODS: Twenty patients with single endodontically treated tooth were examined...
June 16, 2017: Curēus
https://www.readbyqxmd.com/read/28721202/defining-the-inflammatory-signature-of-human-lung-explant-tissue-in-the-presence-and-absence-of-glucocorticoid
#19
Tracy L Rimington, Emily Hodge, Charlotte K Billington, Sangita Bhaker, Binaya K C, Iain Kilty, Scott Jelinsky, Ian P Hall, Ian Sayers
BACKGROUND:  Airway inflammation is a feature of many respiratory diseases and there is a need for newer, more effective anti-inflammatory compounds. The aim of this study was to develop an ex vivo human lung explant model which can be used to help study the mechanisms underlying inflammatory responses and which can provide a tool to aid drug discovery for inflammatory respiratory diseases such as asthma and COPD. METHOD:  Parenchymal lung tissue from 6 individual donors was dissected and cultured with two pro-inflammatory stimuli, lipopolysaccharide (LPS) (1 µg/ml) and interleukin-1 beta (IL-1β) (10 ng/ml) in the presence or absence of dexamethasone (1 µM)...
2017: F1000Research
https://www.readbyqxmd.com/read/28715807/amniotic-fluid-angiogenic-and-inflammatory-factor-profiling-in-foetal-down-syndrome
#20
Monika Zbucka-Kretowska, Karol Charkiewicz, Jan Czerniecki, Joanna Goscik, Slawomir Wolczynski, Piotr Laudanski
OBJECTIVES: Angiogenic factors are proteins that can potentially be related to certain foetal chromosomal abnormalities. The goal of this study was to determine the concentrations of 60 angiogenic factors in the amniotic fluid of women carrying foetuses with Down syndrome (DS). METHODS: After analysis of the karyotyping results, for the purpose of this study, we chose 12 women with foetal DS. For the control group, we selected 12 healthy patients with uncomplicated pregnancies (15-18 weeks of gestation) who delivered healthy newborns at term...
July 15, 2017: Fetal Diagnosis and Therapy
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