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Nitrate AND inflammation

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https://www.readbyqxmd.com/read/29132974/topical-electrophilic-nitro-fatty-acids-potentiate-cutaneous-inflammation
#1
Alicia R Mathers, Cara D Carey, Meaghan E Killeen, Sonia R Salvatore, Laura K Ferris, Bruce A Freeman, Francisco J Schopfer, Louis D Falo
Endogenous electrophilic fatty acids mediate anti-inflammatory responses by modulating metabolic and inflammatory signal transduction and gene expression. Nitro-fatty acids and other electrophilic fatty acids may thus be useful for the prevention and treatment of immune-mediated diseases, including inflammatory skin disorders. In this regard, subcutaneous (SC) injections of nitro oleic acid (OA-NO2), an exemplary nitro-fatty acid, inhibit skin inflammation in a model of allergic contact dermatitis (ACD). Given the nitration of unsaturated fatty acids during metabolic and inflammatory processes and the growing use of fatty acids in topical formulations, we sought to further study the effect of nitro-fatty acids on cutaneous inflammation...
November 10, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29124567/dimethyl-fumarate-modulates-oxidative-stress-and-inflammation-in-organs-after-sepsis-in-rats
#2
Amanda Della Giustina, Sandra Bonfante, Graciela Freitas Zarbato, Lucinéia Gainski Danielski, Khiany Mathias, Aloir Neri de Oliveira, Leandro Garbossa, Taise Cardoso, Maria Eduarda Fileti, Raquel Jaconi De Carli, Mariana Pereira Goldim, Tatiana Barichello, Fabricia Petronilho
Sepsis is defined as life-threatening organ dysfunction induced by a disrupted host response to infecting pathogens. Evidences suggest that oxidative stress is intrinsically related to sepsis progression. Dimethyl fumarate (DMF) is a novel oral therapeutic agent with anti-oxidant properties which exerts protective effects through activation of nuclear factor erythroid 2 (NFE2)-related factor 2 (Nrf2). Thus, the aim of this study is to evaluate the effect of DMF in different organs of rats submitted to an animal model of sepsis...
November 9, 2017: Inflammation
https://www.readbyqxmd.com/read/29098483/irisin-alleviates-advanced-glycation-end-products-induced-inflammation-and-endothelial-dysfunction-via-inhibiting-ros-nlrp3-inflammasome-signaling
#3
Xian Deng, Wei Huang, Juan Peng, Ting-Ting Zhu, Xiao-Lei Sun, Xiang-Yu Zhou, Hui Yang, Jian-Feng Xiong, Hu-Qiang He, You-Hua Xu, Yan-Zheng He
The activation of NLR family pyrin domain containing 3 (NLRP3) inflammasome have been implicated in the initiation or progression of atherosclerosis. Recent research showed that irisin, a newly discovered adipomiokine, alleviates endothelial dysfunction in type 2 diabetes partially via reducing oxidative/nitrative stresses, suggesting that irisin may be a promising candidate for the treatment of vascular complications of diabetes. However, the association between irisin and NLRP3 inflammasome in the pathogenesis of atherosclerosis remains unclear...
November 2, 2017: Inflammation
https://www.readbyqxmd.com/read/29096811/the-role-of-nitroglycerin-and-other-nitrogen-oxides-in-cardiovascular-therapeutics
#4
REVIEW
Sanjay Divakaran, Joseph Loscalzo
The use of nitroglycerin in the treatment of angina pectoris began not long after its original synthesis in 1847. Since then, the discovery of nitric oxide as a biological effector and better understanding of its roles in vasodilation, cell permeability, platelet function, inflammation, and other vascular processes have advanced our knowledge of the hemodynamic (mostly mediated through vasodilation of capacitance and conductance arteries) and nonhemodynamic effects of organic nitrate therapy, via both nitric oxide-dependent and -independent mechanisms...
November 7, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29082918/the-unique-structural-and-functional-features-of-cxcl12
#5
REVIEW
Rik Janssens, Sofie Struyf, Paul Proost
The CXC chemokine CXCL12 is an important factor in physiological and pathological processes, including embryogenesis, hematopoiesis, angiogenesis and inflammation, because it activates and/or induces migration of hematopoietic progenitor and stem cells, endothelial cells and most leukocytes. Therefore, CXCL12 activity is tightly regulated at multiple levels. CXCL12 has the unique property of existing in six splice variants in humans, each having a specific tissue distribution and in vivo activity. Controlled splice variant transcription and mRNA stability determine the CXCL12 expression profile...
October 30, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/29075366/the-synthetic-lignan-secoisolariciresinol-diglucoside-prevents-asbestos-induced-nlrp3-inflammasome-activation-in-murine-macrophages
#6
Ralph A Pietrofesa, Patrick Woodruff, Wei-Ting Hwang, Priyal Patel, Shampa Chatterjee, Steven M Albelda, Melpo Christofidou-Solomidou
BACKGROUND: The interaction of asbestos with macrophages drives two key processes that are linked to malignancy: (1) the generation of reactive oxygen species (ROS)/reactive nitrogen species (RNS) and (2) the activation of an inflammation cascade that drives acute and chronic inflammation, with the NLRP3 inflammasome playing a key role. Synthetic secoisolariciresinol diglucoside (SDG), LGM2605, is a nontoxic lignan with anti-inflammatory and antioxidant properties and was evaluated for protection from asbestos in murine peritoneal macrophages (MF)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29055824/selenium-containing-indolyl-compounds-kinetics-of-reaction-with-inflammation-associated-oxidants-and-protective-effect-against-oxidation-of-extracellular-matrix-proteins
#7
Angela M Casaril, Marta T Ignasiak, Christine Y Chuang, Beatriz Vieira, Nathalia B Padilha, Luke Carroll, Eder J Lenardão, Lucielli Savegnago, Michael J Davies
Activated white blood cells generate multiple oxidants in response to invading pathogens. Thus, hypochlorous acid (HOCl) is generated via the reaction of myeloperoxidase (from neutrophils and monocytes) with hydrogen peroxide, and peroxynitrous acid (ONOOH), a potent oxidizing and nitrating agent is formed from superoxide radicals and nitric oxide, generated by stimulated macrophages. Excessive or misplaced production of these oxidants has been linked to multiple human pathologies, including cardiovascular disease...
October 18, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29051304/consequences-of-advanced-aging-on-renal-function-in-chronic-hyperandrogenemic-female-rat-model-implications-for-aging-women-with-polycystic-ovary-syndrome
#8
Chetan N Patil, Lorraine C Racusen, Jane F Reckelhoff
Polycystic ovary syndrome (PCOS) is the most common endocrine and reproductive disorder in premenopausal women, characterized by hyperandrogenemia, metabolic syndrome, and inflammation. Women who had PCOS during their reproductive years remain hyperandrogenemic after menopause. The consequence of chronic hyperandrogenemia with advanced aging has not been studied to our knowledge. We have characterized a model of hyperandrogenemia in female rats and have aged them to 22-25 months to mimic advanced aging in hyperandrogenemic women, and tested the hypothesis that chronic exposure to hyperandrogenemia with aging has a deleterious effect on renal function...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29032011/sitagliptin-enhances-the-neuroprotective-effect-of-pregabalin-against-pentylenetetrazole-induced-acute-epileptogenesis-in-mice-implication-of-oxidative-inflammatory-apoptotic-and-autophagy-pathways
#9
Manar A Nader, Hayam Ateyya, Mohamed El-Shafey, Nagla A El-Sherbeeny
The current investigation aimed at studying the anti-epileptogenic effect of sitagliptin. The possible effect of the drug in combination with pregabalin in pentylenetetrazole (PTZ)- induced seizures was studied. In addition, the postulated mechanisms that could mediate such effect were explored namely, suppression of oxidative stress and neuro-inflammatory markers, autophagy and apoptosis. Seven days prior to PTZ (60 mg/kg, sc) injection, mice were treated with sitagliptin (5, 15, and 60 mg/kg, twice daily, orally) or pregabalin (30 mg/kg, once daily, orally) or their combination...
October 11, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/29031221/effects-of-particulate-matter-from-straw-burning-on-lung-fibrosis-in-mice
#10
Yang Hu, Liu-Sheng Wang, Yan Li, Qiu-Hong Li, Chun-Lin Li, Jian-Min Chen, Dong Weng, Hui-Ping Li
OBJECTIVE: To investigate the impacts of particulate matter 2.5 (PM2.5) from straw burning on the acute exacerbation of lung fibrosis in mice and the preventive effects of N-acetylcysteine (NAC). METHODS: The composition, particle size, and 30-min concentration change in an exposure system of the PM2.5 from straw-burning were determined. Forty C57BL male mice were equally randomized to two groups: bleomycin (BLM)-induced lung fibrosis with an exposure to air (BLM+air) and BLM+PM2...
October 7, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29030007/pretreatment-of-a-matrix-metalloproteases-inhibitor-and-aprotinin-attenuated-the-development-of-acute-pancreatitis-induced-lung-injury-in-rat-model
#11
Kuang-En Chu, Yao Fong, David Wang, Chao Fuh Chen, Diana Yu-Wung Yeh
OBJECTIVE: Acute lung injury (ALI) is one of the most common extra-pancreatic complications of acute pancreatitis. In this study, we examined the protective effect of protease inhibitor aprotinin and a matrix metalloproteinase inhibitor (MMPi) on pulmonary inflammation in rats with severe pancreatitis-associated ALI. METHOD: A rat model of acute pancreatitis (AP) was established by injecting sodium glycodeoxycholate (GDOC) into the pancreatic duct. Pharmacological interventions included pretreatment with a protease inhibitor aprotinin (10mg/kg) and a matrix metalloproteinase inhibitor (MMPi, 100g/kg)...
October 6, 2017: Immunobiology
https://www.readbyqxmd.com/read/28963087/metformin-influences-on-respiratory-system-in-obese-mice-induced-by-postnatal-overnutrition
#12
Maycon Daniel Dias, Melissa Goulart, Cecilia Dalécio, Silvia Enes-Marques, Évila da Silva Lopes Salles, Marina Venâncio, Elisângela Monteiro Pereira, Valdemar Antonio Paffaro, Erika Kristina Incerpi, Roseli Soncini
Many studies have confirmed the merits of metformin to treat type 2 diabetes, but few studies have addressed its effect on the respiratory system. Moreover, vascular endothelial growth factor (VEGF) is critical to many lung functions. In this way, we evaluated the metformin impact on the lung in treated obese Swiss mice, induced by postnatal overnutrition. Glucose and insulin were detected and the insulin resistance index (HOMA) was calculated; inflammatory cells and nitrite/nitrate concentration (NOx) was quantified from bronchoalveolar lavage, collagen and lung VEGF-a was analysed in the lung tissue and lung mechanics were evaluated by methacholine-induced bronchoconstriction...
September 28, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28959211/oxidative-stress-in-oral-diseases-understanding-its-relation-with-other-systemic-diseases
#13
REVIEW
Jaya Kumar, Seong Lin Teoh, Srijit Das, Pasuk Mahakknaukrauh
Oxidative stress occurs in diabetes, various cancers, liver diseases, stroke, rheumatoid arthritis, chronic inflammation, and other degenerative diseases related to the nervous system. The free radicals have deleterious effect on various organs of the body. This is due to lipid peroxidation and irreversible protein modification that leads to cellular apoptosis or programmed cell death. During recent years, there is a rise in the oral diseases related to oxidative stress. Oxidative stress in oral disease is related to other systemic diseases in the body such as periodontitis, cardiovascular, pancreatic, gastric, and liver diseases...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28954384/ethyl-acetate-fraction-of-terminalia-bellirica-gaertn-roxb-fruits-inhibits-proinflammatory-mediators-via-down-regulating-nuclear-factor-%C3%AE%C2%BAb-in-lps-stimulated-raw-264-7-cells
#14
Kuriakose Jayesh, Lal Raisa Helen, A Vysakh, Eldhose Binil, M S Latha
Inflammation has been considered as a major risk factor for various kinds of human diseases. Macrophages play substantial roles in host defense against infection. It can be activated by lipopolysaccharide (LPS), the major component of the outer membrane of Gram-negative bacteria. The current study aims to investigate the anti-inflammatory effects of ethyl acetate fraction isolated from T. bellerica (EFTB) in LPS stimulated RAW 264.7 macrophage cell lines. The inhibitory effects of EFTB on total cyclooxygenase (COX), 5-lipoxygenase (5-LOX) activity, nitrate and inducible nitric oxide synthase (iNOS) level, reactive oxygen species (ROS) production were studied...
November 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28952199/beetroot-and-sodium-nitrate-ameliorate-cardiometabolic-changes-in-diet-induced-obese-hypertensive-rats
#15
Maharshi Bhaswant, Lindsay Brown, Andrew J McAinch, Michael L Mathai
SCOPE: Dietary intake of beetroot by humans reduces blood pressure but whether this is caused by nitrate or betanin is not well-defined; neither are effects on other signs of metabolic syndrome. METHODS AND RESULTS: Rats fed a high-carbohydrate, high-fat diet (H) for 16 weeks developed abdominal obesity, hypertension, altered cardiovascular and liver structure and function, and impaired glucose tolerance compared to rats fed a corn starch diet (C). H rats treated with ∼16 mg/kg/day of nitrate either from beetroot juice (H+B) or sodium nitrate (H+N) for the last 8 weeks reduced systolic blood pressure by ∼25 mmHg, improved cardiac structure and function, plasma lipid profile and plasma markers of liver function, reduced inflammatory cell infiltration in heart and liver and decreased left ventricular fibrosis...
September 27, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28942280/nitrate-induces-a-type-1-diabetic-profile-in-alligator-hatchlings
#16
Thea M Edwards, Heather J Hamlin, Haley Freymiller, Stephen Green, Jenna Thurman, Louis J Guillette
Type 1 diabetes (T1D) is a chronic autoimmune disease that affects 1 in 300 children by age 18. T1D is caused by inflammation-induced loss of insulin-producing pancreatic beta cells, leading to high blood glucose and a host of downstream complications. Although multiple genes are associated with T1D risk, only 5% of genetically susceptible individuals actually develop clinical disease. Moreover, a growing number of T1D cases occur in geographic clusters and among children with low risk genotypes. These observations suggest that environmental factors contribute to T1D etiology...
January 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28935932/cannabidiol-attenuates-alcohol-induced-liver-steatosis-metabolic-dysregulation-inflammation-and-neutrophil-mediated-injury
#17
Yuping Wang, Partha Mukhopadhyay, Zongxian Cao, Hua Wang, Dechun Feng, György Haskó, Raphael Mechoulam, Bin Gao, Pal Pacher
Cannabidiol (CBD) is a non-psychoactive component of marijuana, which has anti-inflammatory effects. It has also been approved by FDA for various orphan diseases for exploratory trials. Herein, we investigated the effects of CBD on liver injury induced by chronic plus binge alcohol feeding in mice. CBD or vehicle was administered daily throughout the alcohol feeding study. At the conclusion of the feeding protocol, serums samples, livers or isolated neutrophils were utilized for molecular biology, biochemistry and pathology analysis...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28932194/h2s-induced-sulfhydration-biological-function-and-detection-methodology
#18
REVIEW
Da Zhang, Junbao Du, Chaoshu Tang, Yaqian Huang, Hongfang Jin
At appropriate concentrations, hydrogen sulfide, a well-known gasotransmitter, plays important roles in both physiology and pathophysiology. Increasing evidence suggests that modifying thiol groups of specific cysteines in target proteins via sulfhydration or persulfidation is one of the important mechanisms responsible for the biological functions of hydrogen sulfide. A variety of key proteins of different cellular pathways in mammals have been reported to be sulfhydrated by hydrogen sulfide to participate and regulate the processes of cell survival/death, cell differentiation, cell proliferation/hypertrophy, cellular metabolism, mitochondrial bioenergetics/biogenesis, endoplasmic reticulum stress, vasorelaxtion, inflammation, oxidative stress, etc...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28929915/is-synovitis-detected-on-non-contrast-enhanced-magnetic-resonance-imaging-associated-with-serum-biomarkers-and-clinical-signs-of-effusion-data-from-the-osteoarthritis-initiative
#19
L A Deveza, V B Kraus, J E Collins, A Guermazi, F W Roemer, M C Nevitt, D J Hunter
OBJECTIVES: To determine the relationship between synovitis detected on non-contrast-enhanced (non-CE) magnetic resonance imaging (MRI), biochemical markers of inflammation, and clinical assessment of effusion in people with knee osteoarthritis (OA). METHOD: We examined data from the OA Biomarkers Consortium within the Osteoarthritis Initiative (n = 600). Non-CE MRIs were semi-quantitatively scored (grades 0-3) for severity of Hoffa synovitis and effusion synovitis...
September 20, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28915539/astaxanthin-alleviated-acute-lung-injury-by-inhibiting-oxidative-nitrative-stress-and-the-inflammatory-response-in-mice
#20
Jianbin Bi, Ruixia Cui, Zeyu Li, Chang Liu, Jingyao Zhang
The purpose of the present study was to assess the effect of astaxanthin (ASX) treatment on the acute lung injury (ALI) induced by cecal ligation and puncture (CLP) in mice. Mice were randomly allocated into the following groups: (1) the saline control group, in which mice were given saline before sham operation; (2) the ASX control group, in which mice received ASX before sham operation; (3) the ALI group, in which mice were given saline before CLP operation; and (4) the ALI+ASX group, in which mice received ASX before CLP operation...
November 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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