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https://www.readbyqxmd.com/read/29467755/leptin-mediates-in-vivo-neutrophil-migration-involvement-of-tumor-necrosis-factor-alpha-and-cxcl1
#1
Glaucia Souza-Almeida, Heloisa D'Avila, Patricia E Almeida, Tatiana Luna-Gomes, Sally Liechocki, Barbara Walzog, Ingrid Hepper, Hugo Caire Castro-Faria-Neto, Patricia T Bozza, Christianne Bandeira-Melo, Clarissa M Maya-Monteiro
Leptin directly activates macrophages and lymphocytes, but the role of leptin in neutrophil activation and migration is still controversial. Here, we investigate the in vivo mechanisms of neutrophil migration induced by leptin. The intraperitoneal injection of leptin (1 mg/kg) induces a time- and concentration-dependent neutrophil influx. We did not observe the enhancement of lipid bodies/droplets in neutrophils, after leptin treatment, as we had observed previously in peritoneal macrophages. The participation of leukotriene B4 (LTB4 ) in neutrophil recruitment triggered by leptin was investigated using different strategies...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29464499/catechin-attenuates-coronary-heart-disease-in-a-rat-model-by-inhibiting-inflammation
#2
Su Tu, Feng Xiao, Xiaoyan Min, Huiping Chen, Xiaochun Fan, Kejiang Cao
Accumulating evidence has established that systemic inflammation is an important pathophysiologic factor of coronary heart disease (CHD). In this study, we investigated whether catechin exerts anti-inflammatory function in CHD rats. CHD model of rats was established by high-fat diet feeding and pituitrin injection. The successful building of CHD model was confirmed using blood liquid biochemical analyzer. Additionally, the effects of catechin on CHD parameters and several inflammatory signaling were investigated...
February 20, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29464001/piwil3-oip5-as1-mir-367-3p-cebpa-feedback-loop-regulates-the-biological-behavior-of-glioma-cells
#3
Xiaobai Liu, Jian Zheng, Yixue Xue, Hai Yu, Wei Gong, Ping Wang, Zhen Li, Yunhui Liu
Rationale: PIWI-interacting RNAs (piRNAs), a class of newly discovered small RNA molecules that function by binding to the Argonaute protein family (i.e., the PIWIL protein subfamily), and long noncoding RNAs (lncRNA) are implicated in several cancers. However, the detailed roles of ncRNAs in glioma remain unclear. Methods: The expression of PIWIL3, piR-30188, OIP5-AS1, miR-367, CEBPA and TRAF4 were measured in glioma tissues and cells. The role of PIWIL3/OIP5-AS1/miR-367-3p/CEBPA feedback loop was evaluated in cell and animal models...
2018: Theranostics
https://www.readbyqxmd.com/read/29446722/herbal-compounds-with-special-reference-to-gastrodin-as-potential-therapeutic-agents-for-microglia-mediated-neuroin%C3%AF-ammation
#4
Juan-Juan Li, Shun-Jin Liu, Xiao-Yu Liu, Eng-Ang Ling
BACKGROUND: Activated microglia play a pivotal role neurodegenerative diseases by producing a variety of proinflammatory mediators including tumor necrosis factor-alpha (TNF-α), interleukin-1bea (IL-1β) and nitric oxide (NO) that are toxic to neurons and oligodendrocytes. METHODS: In view of the above, suppression of microglia mediated neuroinflammation is deemed a therapeutic strategy for neurodegenerative diseases. Several potential Chinese herbal extracts have been reported to exert neuroprotective effects against neurodegenerative diseases targeting specifically at the activated microglia...
February 14, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29433511/histamine-upregulates-the-expression-of-histamine-receptors-and-increases-the-neuroprotective-effect-of-astrocytes
#5
Jiawen Xu, Xiang Zhang, Qingqing Qian, Yiwei Wang, Hongquan Dong, Nana Li, Yanning Qian, Wenjie Jin
BACKGROUND: Astrocytes have attracted increasing attention over recent decades for their role in neuroinflammation. Histamine, a major aminergic brain neurotransmitter, has an important influence on the main activities of astrocytes, such as ion homeostasis, energy metabolism, and neurotransmitter clearance. However, little is known about the impact of histamine on astrocyte immunomodulatory function. METHODS: The expression of all known histamine receptor subtypes was examined in primary astrocytes...
February 13, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29430402/effects-of-mineralocorticoid-receptor-antagonists-on-responses-to-hemorrhagic-shock-in-rats
#6
Kanako Yamamoto, Takashi Yamamoto, Masayuki Takamura, Soichiro Usui, Hisayoshi Murai, Shuichi Kaneko, Takumi Taniguchi
AIM: To evaluate the effects of mineralocorticoid receptor (MR) antagonists on mortality and inflammatory responses after hemorrhagic shock (HS) in rats. METHODS: One hundred and two male Sprague-Dawley rats were randomly assigned to one of the following three groups: Control, spironolactone (SPL), and eplerenone (EP) groups. HS was induced by the removal of blood. One half of rats were evaluated to determine mortality, hemodynamics, plasma tumor necrosis factor-alpha (TNF-α) concentrations, and arterial blood gas at 8 h after HS recovery...
February 4, 2018: World Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/29424256/effect-of-coenzyme-q10-on-mitochondrial-respiratory-proteins-in-trigeminal-neuralgia
#7
Chutikorn Khuankaew, Nattayaporn Apaijai, Passakorn Sawaddiruk, Thidarat Jaiwongkam, Sasiwan Kerdphoo, Surawut Pongsiriwet, Wichittra Tassaneeyakul, Nipon Chattipakorn, Siriporn C Chattipakorn
Trigeminal neuralgia (TN) is the neuropathic pain. Mitochondrial dysfunction, increased oxidative stress, and inflammation demonstrated in chronic pain. Carbamazepine (CBZ) is the first-line drug for TN, however, it is still insufficient. Coenzyme Q10 (CoQ10) has been used as the additional supplement for pain therapy. Nonetheless, mitochondrial respiratory proteins, oxidative stress, and inflammation in TN, and the add-on effects of CoQ10 on those defects have never been investigated. CBZ-treated TN-patients, naïve TN-patients, and control subjects were included...
February 9, 2018: Free Radical Research
https://www.readbyqxmd.com/read/29422769/a-genome-wide-association-study-of-corneal-astigmatism-the-cream-consortium
#8
Rupal L Shah, Qing Li, Wanting Zhao, Milly S Tedja, J Willem L Tideman, Anthony P Khawaja, Qiao Fan, Seyhan Yazar, Katie M Williams, Virginie J M Verhoeven, Jing Xie, Ya Xing Wang, Moritz Hess, Stefan Nickels, Karl J Lackner, Olavi Pärssinen, Juho Wedenoja, Ginevra Biino, Maria Pina Concas, André Uitterlinden, Fernando Rivadeneira, Vincent W V Jaddoe, Pirro G Hysi, Xueling Sim, Nicholas Tan, Yih-Chung Tham, Sonoko Sensaki, Albert Hofman, Johannes R Vingerling, Jost B Jonas, Paul Mitchell, Christopher J Hammond, René Höhn, Paul N Baird, Tien-Yin Wong, Chinfsg-Yu Cheng, Yik Ying Teo, David A Mackey, Cathy Williams, Seang-Mei Saw, Caroline C W Klaver, Jeremy A Guggenheim, Joan E Bailey-Wilson
Purpose: To identify genes and genetic markers associated with corneal astigmatism. Methods: A meta-analysis of genome-wide association studies (GWASs) of corneal astigmatism undertaken for 14 European ancestry (n=22,250) and 8 Asian ancestry (n=9,120) cohorts was performed by the Consortium for Refractive Error and Myopia. Cases were defined as having >0.75 diopters of corneal astigmatism. Subsequent gene-based and gene-set analyses of the meta-analyzed results of European ancestry cohorts were performed using VEGAS2 and MAGMA software...
2018: Molecular Vision
https://www.readbyqxmd.com/read/29414654/interleukin-8-favors-pro-inflammatory-activity-of-human-monocytes-macrophages
#9
Maksim Evgenievich Meniailo, Vladimir Vladimirovich Malashchenko, Vyacheslav Anatolievich Shmarov, Natalia Dinislamovna Gazatova, Olga Borisovna Melashchenko, Andrei Gennadievich Goncharov, Galina Viktorovna Seledtsova, Viktor Ivanovich Seledtsov
Interleukin-8 (IL-8, CXCL8) belongs to major chemokines to stimulate migration of neutrophils and monocytes/macrophages (Mc/Mphs) into the inflammation sites. We studied the direct effects of IL-8 on the functionality of human Mc/Mphs in vitro. CD14-positive cells were isolated from human peripheral blood mononuclear cells (PBMCs) by positive magnetic separation and were further cultured with or without lipopolysaccharide (LPS, 1.0 μg/ml) for 24 h. We showed that upon LPS activation of Mc/Mphs, IL-8 reduced markedly both the percentages and median fluorescence intensity (MFI) of CD16 (FcγRIII)-positive cells among CD14high cells, as well as in cells that reduced the expression of СD14 during their culturing...
January 27, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29410018/linagliptin-potentiates-the-effect-of-l-dopa-on-the-behavioural-biochemical-and-immunohistochemical-changes-in-experimentally-induced-parkinsonism-role-of-toll-like-receptor-4-tgf-%C3%AE-1-nf-%C3%AE%C2%BAb-and-glucagon-like-peptide-1
#10
Ahmed M Kabel, Mohamed S Omar, Abdulrahman Alhadhrami, Salman S Alharthi, Majed M Alrobaian
OBJECTIVE: Our aim was to assess the effect of different doses of linagliptin with or without l-dopa/Carbidopa on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonism in mice. METHODS: Eighty Balb/c mice were divided into 8 equal groups: Control; MPTP; MPTP + l-dopa/Carbidopa; MPTP + linagliptin 3 mg/kg/day; MPTP + linagliptin 10 mg/kg/day; MPTP + Carboxymethyl cellulose; MPTP + l-dopa/Carbidopa + linagliptin 3 mg/kg/day and MPTP + l-dopa/Carbidopa + linagliptin 10 mg/kg/day...
January 30, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29409499/mechanisms-of-multiple-neurotransmitters-in-the-effects-of-lycopene-on-brain-injury-induced-by-hyperlipidemia
#11
Weichun Yang, Ziyi Shen, Sixian Wen, Wei Wang, Minyu Hu
BACKGROUND: Lycopene is a kind of carotenoid, with a strong capacity of antioxidation and regulating the bloodlipid. There has been some evidence that lycopene has protective effects on the central nervous system, but few studies have rigorously explored the role of neurotransmitters in it. Therefore, the present study was designed to investigate the effects of several neurotransmitters as lycopene exerts anti-injury effects induced by hyperlipidemia. METHODS: Eighty adult SD rats, half male and half female, were randomly divided into eight groups on the basis of serum total cholesterol (TC) levels and body weight...
February 7, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29408221/molecular-characterization-and-expression-of-toll-like-receptor-5-genes-from-pelteobagrus-vachellii
#12
Chuanjie Qin, Quan Gong, Zhengyong Wen, Dengyue Yuan, Ting Shao, Huatao Li
Toll-like receptor 5 (TLR5) is an important pathogen recognition receptor (PRR) that recognizes the flagellin protein of pathogenic bacteria and plays a fundamental role in activating the innate immune response. In this study, full-length pvTLR5m (membrane) and pvTLR5s (soluble) genes were cloned from darkbarbel catfish Pelteobagrus vachellii, and their expression and that of downstream genes were analyzed following exposure to the Aeromonas hydrophila pathogen. The 3009 bp pvTLR5m cDNA includes a 2652 bp open reading frame (ORF) encoding 884 amino acids...
February 2, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29405769/thymoquinone-alleviates-the-experimentally-induced-alzheimer-s-disease-inflammation-by-modulation-of-tlrs-signaling
#13
Y S Abulfadl, N N El-Maraghy, Aa Eissa Ahmed, S Nofal, Y Abdel-Mottaleb, O A Badary
Alzheimer's disease (AD) is characterized by a robust inflammatory response elicited by the accumulation and deposition of amyloid-β (Aβ) within the brain. Aβ induces detrimental inflammatory responses through toll-like receptors (TLRs) signaling pathway. Thymoquinone (TQ), the main active constituent of Nigella sativa oil, has been reported by several previous studies for its potent anti-inflammatory effect. The aim of this study is to elucidate the effect of TQ in improving learning and memory, using a rat model of AD induced by a combination of aluminum chloride (AlCl 3 ) and d-galactose (d-Gal)...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29396047/fisetin-inhibits-tnf-%C3%AE-nf-%C3%AE%C2%BAb-induced-il-8-expression-by-targeting-pkc%C3%AE-in-human-airway-epithelial-cells
#14
Seoghyun Lee, Hyunju Ro, Hyun Ju In, Ji-Hee Choi, Mun-Ock Kim, Jinhyuk Lee, Sung-Tae Hong, Su Ui Lee
Fisetin (3,7,3',4'-tetrahydroxyflavone), a natural flavonoid, is a therapeutic agent for respiratory inflammatory diseases such as chronic obstructive pulmonary disease (COPD). However, detailed molecular mechanisms regarding the target protein of fisetin remain unknown. Fisetin significantly reduces tumour necrosis factor alpha (TNF-α)-induced interleukin (IL)-8 levels by inhibiting both nuclear factor kappa B (NF-κB) transcriptional activity and the phosphorylation of its upstream effectors. We show that fisetin prevents interactions between protein kinase C (PKC)δ and TNF receptor-associated factor 2 (TRAF2), thereby inhibiting the inhibitor of kappa B kinase (IKK)/NF-κB downstream signalling cascade...
January 26, 2018: Cytokine
https://www.readbyqxmd.com/read/29386201/cd301b-mgl2-mononuclear-phagocytes-orchestrate-autoimmune-cardiac-valve-inflammation-and-fibrosis
#15
Lee A Meier, Jennifer L Auger, Brianna J Engelson, Hannah M Cowan, Elise R Breed, Mayra I Gonzalez-Torres, Joshua D Boyer, Mayank Verma, Aubyn Marath, Bryce A Binstadt
Background -Valvular heart disease (VHD) is common and affects the mitral valve (MV) most frequently. Despite the prevalence of mitral valve disease (MVD), the cellular and molecular pathways that initiate and perpetuate it are not well understood. Methods -K/B.g7 T cell receptor (TCR) transgenic mice spontaneously develop systemic autoantibody-associated autoimmunity, leading to fully-penetrant fibro-inflammatory MVD and arthritis. We used multiparameter flow cytometry, intracellular cytokine staining, and immunofluorescent staining to characterize the cells in inflamed K/B...
January 31, 2018: Circulation
https://www.readbyqxmd.com/read/29385062/a-randomized-double-blinded-placebo-controlled-trial-investigating-the-effect-of-fish-oil-supplementation-on-gene-expression-related-to-insulin-action-blood-lipids-and-inflammation-in-gestational-diabetes-mellitus-fish-oil-supplementation-and-gestational-diabetes
#16
Mehri Jamilian, Mansooreh Samimi, Naghmeh Mirhosseini, Faraneh Afshar Ebrahimi, Esmat Aghadavod, Mohsen Taghizadeh, Zatollah Asemi
Gestational diabetes mellitus (GDM) is a common complication of pregnancy, and it is mostly associated with postpartum diabetes, insulin resistance, and dyslipidemia. Fish oil (omega-3) supplementation has been shown to reduce the risk of different chronic diseases such as cardiovascular disease, type 2 diabetes, and cancers, though the evidence of its impact on gestational diabetes is scarce. Our goal in this study was to determine the effect of fish oil administration on gene expression related to insulin action, blood lipids, and inflammation in women with GDM...
January 31, 2018: Nutrients
https://www.readbyqxmd.com/read/29382797/novel-anti-tumour-necrosis-factor-receptor-1-tnfr1-domain-antibody-prevents-pulmonary-inflammation-in-experimental-acute-lung-injury
#17
Alastair Proudfoot, Andrew Bayliffe, Cecilia M O'Kane, Tracey Wright, Adrian Serone, Philippe Jean Bareille, Vanessa Brown, Umar I Hamid, Younan Chen, Robert Wilson, Joanna Cordy, Peter Morley, Ruud de Wildt, Stuart Elborn, Matthew Hind, Edwin R Chilvers, Mark Griffiths, Charlotte Summers, Daniel Francis McAuley
BACKGROUND: Tumour necrosis factor alpha (TNF-α) is a pleiotropic cytokine with both injurious and protective functions, which are thought to diverge at the level of its two cell surface receptors, TNFR1 and TNFR2. In the setting of acute injury, selective inhibition of TNFR1 is predicted to attenuate the cell death and inflammation associated with TNF-α, while sparing or potentiating the protective effects of TNFR2 signalling. We developed a potent and selective antagonist of TNFR1 (GSK1995057) using a novel domain antibody (dAb) therapeutic and assessed its efficacy in vitro, in vivo and in a clinical trial involving healthy human subjects...
January 29, 2018: Thorax
https://www.readbyqxmd.com/read/29367088/sinomenine-inhibits-fibroblast-like-synoviocyte-proliferation-by-regulating-%C3%AE-7nachr-expression-via-erk-egr-1-pathway
#18
Lang Yi, Yan-Jun Lyn, Chong Peng, Rui-Li Zhu, Sha-Sha Bai, Liang Liu, Pei-Xun Wang, Hua Zhou, Yan Dong
Fibroblast like synoviocyte (FLS) is a crucial in the pathogenesis of rheumatoid arthritis (RA), and involved in inflammation and joint destruction. Sinomenine (SIN), an alkaloid derived from the plant Sinomenium acutum, has anti-inflammatory and analgesic effect and been used for RA treatment in China. Alpha 7 nicotinic acetylcholine receptors (α7nAChR), as the key receptor in cholinergic anti-inflammatory pathway (CAP) to inhibit inflammation, has been detected in RA patients synovium, but its role is still unclear...
January 20, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29366909/hepatocyte-specific-deletion-of-il1-ri-attenuatesliver-injury-by-blocking-il-1-driven-autoinflammation
#19
Nadine Gehrke, Nadine Hövelmeyer, Ari Waisman, Beate K Straub, Julia Weinmann-Menke, Marcus A Wörns, Peter R Galle, Jörn M Schattenberg
BACKGROUND & AIMS: Interleukin (IL)-1-type cytokines including IL-1alpha, IL-1beta and interleukin-1 receptor antagonist (IL-1Ra) are among the most potent molecules of the innate immune system and exert biological activities through the ubiquitously expressed interleukin-1 receptor type 1 (IL-1RI). The role of IL-1RI in hepatocytes during acute liver failure (ALF) remains undetermined. METHODS: IL-1RI during ALF was investigated using a novel transgenic mouse model exhibiting deletion of all signaling-capable IL-1R isoforms in hepatocytes (IL-1RIHep-/-)...
January 20, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29359480/the-effects-of-fish-oil-on-gene-expression-in-patients-with-polycystic-ovary-syndrome
#20
Elham Rahmani, Mehri Jamilian, Bahareh Dadpour, Zahra Nezami, Zahra Vahedpoor, Samaneh Mahmoodi, Esmat Aghadavod, Mohsen Taghizadeh, Abolfazl Beiki Hassan, Zatollah Asemi
BACKGROUND: This study was conducted to determine the effects of fish oil administration on gene expression related to insulin, lipid and inflammation in women with polycystic ovary syndrome (PCOS). MATERIALS AND METHODS: This randomized, double-blind, placebo-controlled trial was conducted among 40 subjects with PCOS, aged 18-40 years old. Subjects were randomly allocated into two groups to take either 1000 mg omega-3 fatty acids from fish oil (n=20) or placebo (n=20) twice a day for 12 weeks...
January 23, 2018: European Journal of Clinical Investigation
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