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Respiratory disease antioxidant

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https://www.readbyqxmd.com/read/29223018/targeting-oxidant-dependent-mechanisms-for-the-treatment-of-respiratory-diseases-and-their-comorbidities
#1
REVIEW
Neil C Thomson
Oxidative stress is implicated in the pathogenesis of respiratory diseases, such as COPD and its comorbidities, asthma, idiopathic pulmonary fibrosis and radiation pneumonitis. Antioxidants drugs, such as small molecule thiols, nuclear erythroid-2 related factor 2 activators and catalytic enzyme mimetics have been developed to target oxidant-dependent mechanisms. The therapeutic effects of antioxidants have been generally disappointing. A small number of antioxidants are approved for clinical use, such as the small molecule thiol N-acetyl-l-cysteine for chronic obstructive pulmonary disease, and in the United States, the superoxide dismutase mimetic AEOL 10150 for severe radiation pneumonitis...
December 6, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29211846/slc25a10-biallelic-mutations-in-intractable-epileptic-encephalopathy-with-complex-i-deficiency
#2
Giuseppe Punzi, Vito Porcelli, Matteo Ruggiu, Faruk Hossain, Alessio Menga, Pasquale Scarcia, Alessandra Castegna, Ruggiero Gorgoglione, Ciro L Pierri, Luna Laera, Francesco M Lasorsa, Eleonora Paradies, Isabella Pisano, Carlo M T Marobbio, Eleonora Lamantea, Daniele Ghezzi, Valeria Tiranti, Sergio Giannattasio, Maria A Donati, Renzo Guerrini, Luigi Palmieri, Ferdinando Palmieri, Anna De Grassi
Mitochondrial diseases are a plethora of inherited neuromuscular disorders sharing defects in mitochondrial respiration, but largely different from one another for genetic basis and pathogenic mechanism. Whole exome sequencing was performed in a familiar trio (trio-WES) with a child affected by severe epileptic encephalopathy associated to respiratory complex I deficiency and mitochondrial DNA depletion in skeletal muscle. By trio-WES we identified biallelic mutations in SLC25A10, a nuclear gene encoding a member of the mitochondrial carrier family...
December 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29210997/tempol-supplementation-restores-diaphragm-force-and-metabolic-enzyme-activities-in-mdx-mice
#3
David P Burns, Izza Ali, Clement Rieux, James Healy, Greg Jasionek, Ken D O'Halloran
Duchenne muscular dystrophy (DMD) is characterized by striated muscle weakness, cardiomyopathy, and respiratory failure. Since oxidative stress is recognized as a secondary pathology in DMD, the efficacy of antioxidant intervention, using the superoxide scavenger tempol, was examined on functional and biochemical status of dystrophin-deficient diaphragm muscle. Diaphragm muscle function was assessed, ex vivo, in adult male wild-type and dystrophin-deficient mdx mice, with and without a 14-day antioxidant intervention...
December 6, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29202419/ultrafine-particulate-matter-impairs-mitochondrial-redox-homeostasis-and-activates-phosphatidylinositol-3-kinase-mediated-dna-damage-responses-in-lymphocytes
#4
Arpit Bhargava, Shivani Tamrakar, Aniket Aglawe, Harsha Lad, Rupesh Kumar Srivastava, Dinesh Kumar Mishra, Rajnarayan Tiwari, Koel Chaudhury, Irina Yu Goryacheva, Pradyumna Kumar Mishra
Particulate matter (PM), broadly defined as coarse (2.5-10 μm), fine (0.1-2.5 μm) and ultrafine particles (≤0.1 μm), is a major constituent of ambient air pollution. Recent studies have linked PM exposure (coarse and fine particles) with several human diseases including cancer. However, the molecular mechanisms underlying ultrafine PM exposure induced cellular and sub-cellular repercussions are ill-defined. Since mitochondria are one of the major targets of different environmental pollutants, we herein aimed to understand the molecular repercussion of ultrafine PM exposure on mitochondrial machinery in peripheral blood lymphocytes...
December 1, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29200030/resveratrol-for-patients-with-chronic-obstructive-pulmonary-disease-hype-or-hope
#5
Rosanne J H C G Beijers, Harry R Gosker, Annemie M W J Schols
PURPOSE OF REVIEW: Chronic obstructive pulmonary disease (COPD) is a progressive lung disease with a high prevalence of extrapulmonary manifestations and, frequently, cardiovascular comorbidity. Resveratrol is a food-derived compound with anti-inflammatory, antioxidant, metabolic and cardioprotective potential. Therefore, resveratrol might improve the pulmonary as well as extrapulmonary pathology in COPD. In this review, we will evaluate knowledge on the effects of resveratrol on lung injury, muscle metabolism and cardiovascular risk profile and discuss if resveratrol is a hype or hope for patients with COPD...
December 1, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/29187594/plasma-urate-lung-function-and-chronic-obstructive-pulmonary-disease-a-mendelian-randomisation-study-in-114-979-individuals-from-the-general-population
#6
Camilla J Kobylecki, Signe Vedel-Krogh, Shoaib Afzal, Sune F Nielsen, Børge G Nordestgaard
BACKGROUND: Urate is a strong antioxidant in plasma and may protect against lung function impairment. We tested the hypothesis that high plasma urate is causally associated with better lung function and low risk of respiratory symptoms and COPD. METHODS: We measured lung function and plasma urate in 114 979 individuals from the Copenhagen City Heart Study and the Copenhagen General Population Study and genotyped for SLC2A9 rs7442295 and ABCG2 rs2231142 variants, previously associated with high plasma urate, in 110 152 individuals...
November 29, 2017: Thorax
https://www.readbyqxmd.com/read/29185873/in-vivo-determination-of-mitochondrial-respiration-in-1-methyl-4-phenyl-1-2-3-6-tetrahydropyridine-treated-zebrafish-reveals-the-efficacy-of-melatonin-in-restoring-mitochondrial-normalcy
#7
María E Díaz-Casado, Iryna Rusanova, Paula Aranda, Marisol Fernández-Ortiz, Ramy K A Sayed, Beatriz I Fernández-Gil, Agustín Hidalgo-Gutiérrez, Germaine Escames, Luis C López, Darío Acuña-Castroviejo
Although mitochondria dysfunction is related to multiple diseases, no in vivo studies are available on mitochondrial respiration in animal parkinsonian models. Our aim is to analyze in vivo mitochondrial respiration, which reflects changes in mitochondrial bioenergetics more precisely than in vitro mitochondrial preparations. These experiments can be carried out in zebrafish embryos, which were treated with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) from 24 to 72 hours postfertilization (hpf). A reduction in electron transfer system capacity, ATP turnover, and increased proton leak were observed at 72 hpf in MPTP-treated embryos...
November 29, 2017: Zebrafish
https://www.readbyqxmd.com/read/29176872/para-hydroxyphenylpyruvate-inhibits-the-pro-inflammatory-stimulation-of-macrophage-preventing-lps-mediated-nitro-oxidative-unbalance-and-immunometabolic-shift
#8
Rosella Scrima, Marta Menga, Consiglia Pacelli, Francesca Agriesti, Olga Cela, Claudia Piccoli, Antonella Cotoia, Alessandra De Gregorio, Julia V Gefter, Gilda Cinnella, Nazzareno Capitanio
Targeting metabolism is emerging as a promising therapeutic strategy for modulation of the immune response in human diseases. In the presented study we used the lipopolysaccharide (LPS)-mediated activation of RAW 264.7 macrophage-like cell line as a model to investigate changes in the metabolic phenotype and to test the effect of p-hydroxyphenylpyruvate (pHPP) on it. pHPP is an intermediate of the PHE/TYR catabolic pathway, selected as analogue of the ethyl pyruvate (EP), which proved to exhibit antioxidant and anti-inflammatory activities...
2017: PloS One
https://www.readbyqxmd.com/read/29164519/atorvastatin-prevents-early-oxidative-events-and-modulates-inflammatory-mediators-in-the-striatum-following-intranasal-1-methyl-4-phenyl-1-2-3-6-tetrahydropyridine-mptp-administration-in-rats
#9
Naiani F Marques, Adalberto A Castro, Gianni Mancini, Fernanda L Rocha, Adair R S Santos, Rui D Prediger, Andreza Fabro De Bem, Carla I Tasca
Atorvastatin is a 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitor with cholesterol-lowering, anti-inflammatory, and antioxidant properties. Increasing evidence show atorvastatin acts as a protective agent against insults in the central nervous system (CNS). The regular use of statins has been associated with a reduced risk of Parkinson's disease (PD) development. Here, we evaluated early events involved in the neurotoxicity induced by intranasal (i.n.) infusion of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) in rats and the potential of atorvastatin to prevent these early toxic events...
November 21, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/29143358/melatonin-improves-survival-and-respiratory-activity-of-yeast-cells-challenged-by-alpha-synuclein-and-menadione
#10
Mariana A Zampol, Mario H Barros
One of the hallmarks of Parkinson disease is α-synuclein aggregate deposition that leads to ER stress, Golgi fragmentation, and impaired energy metabolism with consequent redox imbalance. In the last decade, many studies have used Saccharomyces cerevisiae as a model in order to explore the intracellular consequences of α-synuclein overexpression. In this study we propose to evaluate the respiratory outcome of yeast cells expressing α-synuclein. Cell viability, or growth on selective media for respiratory activity was mainly affected in the α-synuclein expressing cells if they were also treated with menadione, which stimulates ROS production...
November 16, 2017: Yeast
https://www.readbyqxmd.com/read/29111690/aerosol-health-effects-from-molecular-to-global-scales
#11
Manabu Shiraiwa, Kayo Ueda, Andrea Pozzer, Gerhard Lammel, Christopher J Kampf, Akihiro Fushimi, Shinichi Enami, Andrea M Arangio, Janine Fröhlich-Nowoisky, Yuji Fujitani, Akiko Furuyama, Pascale Sylvie Jeanne Lakey, Jos Lelieveld, Kurt Lucas, Yu Morino, Ulrich Pöschl, Satoshi Takahama, Akinori Takami, Haijie Tong, Bettina Weber, Ayako Yoshino, Kei Sato
Poor air quality is the globally largest environmental health risk. Epidemiological studies have uncovered clear relationships of gaseous pollutants and particulate matter (PM) with adverse health outcomes, including mortality by cardiovascular and respiratory diseases. Studies of health impacts by aerosols are highly multidisciplinary with a broad range of scales in space and time. We assess recent advances and future challenges regarding aerosol effects on health from molecular to global scales, through epidemiological studies, field measurements, health-related properties of PM, and multiphase interactions of oxidants and PM upon respiratory deposition...
November 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29104656/therapeutic-effects-of-stemonine-on-particulate-matter-2-5-induced-chronic-obstructive-pulmonary-disease-in-mice
#12
Jinbo Zhang, Shiqing Li, Li Sun, Yanxia Chen, Lei Zhang, Zhenghui Zhang
Particulate matter 2.5 (PM2.5) is a growing concern worldwide due to its association with respiratory diseases, including chronic obstructive pulmonary disease (COPD). Stemonine, a traditional Chinese herb, has been demonstrated to exhibit anti-inflammatory and antioxidant properties, making it a potential drug for the treatment of respiratory diseases. The therapeutic effects of stemonine on mice with PM2.5-induced COPD were investigated in the present study. Kunming mice were randomly divided into the following five groups (n=10/group): Control, model, low-dose stemonine, moderate-dose stemonine and high-dose stemonine...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29102628/dietary-supplementation-of-biofloc-influences-growth-performance-physiological-stress-antioxidant-status-and-immune-response-of-juvenile-sea-cucumber-apostichopus-japonicus-selenka
#13
Jinghua Chen, Yichao Ren, Guodong Wang, Bin Xia, Yuquan Li
Bioflocs are rich in various probiotics and bioactive compounds, which play an important role in improving growth and health status of aquatic organisms. A 60-day experiment was conducted to investigate the effects of dietary supplementation of biofloc on growth performance, digestive enzyme activity, physiological stress, antioxidant status, expression of immune-related genes and disease resistance of sea cucumber Apostichopus japonicus. Juvenile sea cucumbers were fed five experimental diets containing graded levels of biofloc from 0% to 20% (referred as B0, B5, B10, B15 and B20, respectively)...
November 4, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29080401/reactive-oxygen-species-as-signaling-molecules-in-the-development-of-lung-fibrosis
#14
REVIEW
Francisco J Gonzalez-Gonzalez, Navdeep Chandel, Manu Jain, G R Scott Budinger
Pulmonary fibrosis is a relatively rare but devastating disease characterized by the excessive deposition of extracellular matrix. The increased matrix results in reduced lung compliance and increased work of breathing, while the obliteration of alveolar-capillary structures can result in hypoxemia and pulmonary hypertension, which manifests clinically as worsening shortness of breath, respiratory failure, and death. Unbiased genome-wide association studies combined with animal models suggest that damage to the alveolar epithelium is the initiating factor in pulmonary fibrosis...
October 10, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29077060/oxidative-stress-mechanistic-insights-into-inherited-mitochondrial-disorders-and-parkinson-s-disease
#15
REVIEW
Mesfer Al Shahrani, Simon Heales, Iain Hargreaves, Michael Orford
Oxidative stress arises when cellular antioxidant defences become overwhelmed by a surplus generation of reactive oxygen species (ROS). Once this occurs, many cellular biomolecules such as DNA, lipids, and proteins become susceptible to free radical-induced oxidative damage, and this may consequently lead to cellular and ultimately tissue and organ dysfunction. Mitochondria, as well as being a source of ROS, are vulnerable to oxidative stress-induced damage with a number of key biomolecules being the target of oxidative damage by free radicals, including membrane phospholipids, respiratory chain complexes, proteins, and mitochondrial DNA (mt DNA)...
October 27, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29036182/proteome-analysis-of-bronchoalveolar-lavage-from-calves-infected-with-bovine-respiratory-syncytial-virus-insights-in-pathogenesis-and-perspectives-for-new-treatments
#16
Sara Hägglund, Krister Blodörn, Katarina Näslund, Karin Vargmar, Sara Bergström Lind, Jia Mi, Mariluz Araínga, Sabine Riffault, Geraldine Taylor, John Pringle, Jean François Valarcher
Human and bovine respiratory syncytial viruses (HRSV/BRSV) are major causes of severe lower respiratory tract infections in children and calves, respectively. Shared epidemiological, clinical, pathological and genetic characteristics of these viruses make comparative research highly relevant. To characterise the host response against BRSV infection, bronchoalveolar lavage supernatant (BAL) from i) non-vaccinated, BRSV-infected ii) vaccinated, BRSV-infected and iii) non-infected calves was analysed by tandem mass spectrometry...
2017: PloS One
https://www.readbyqxmd.com/read/29025888/effect-of-erdosteine-on-the-rate-and-duration-of-copd-exacerbations-the-restore-study
#17
Roberto W Dal Negro, Jadwiga A Wedzicha, Martin Iversen, Giovanni Fontana, Clive Page, Arrigo F Cicero, Edoardo Pozzi, Peter M A Calverley
Oxidative stress contributes to chronic obstructive pulmonary disease (COPD) exacerbations and antioxidants can decrease exacerbation rates, although we lack data about the effect of such drugs on exacerbation duration.The RESTORE (Reducing Exacerbations and Symptoms by Treatment with ORal Erdosteine in COPD) study was a prospective randomised, double-blind, placebo-controlled study, enrolling patients aged 40-80 years with Global Initiative for Chronic Obstructive Lung Disease stage II/III. Patients received erdosteine 300 mg twice daily or placebo added to usual COPD therapy for 12 months...
October 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28988576/alcohol-and-the-lung
#18
Ashish J Mehta, David M Guidot
Among the many organ systems affected by harmful alcohol use, the lungs are particularly susceptible to infections and injury. The mechanisms responsible for rendering people with alcohol use disorder (AUD) vulnerable to lung damage include alterations in host defenses of the upper and lower airways, disruption of alveolar epithelial barrier integrity, and alveolar macrophage immune dysfunction. Collectively, these derangements encompass what has been termed the "alcoholic lung" phenotype. Alcohol-related reductions in antioxidant levels also may contribute to lung disease in people with underlying AUD...
2017: Alcohol Research: Current Reviews
https://www.readbyqxmd.com/read/28987048/-the-application-of-n-acetylcysteine-in-optimization-of-specific-pharmacological-therapies
#19
REVIEW
Iga Hołyńska-Iwan, Marcin Wróblewski, Dorota Olszewska-Słonina, Tomasz Tyrakowski
Based on the analysis of data from clinical trials it could be postulated that N-acetylcysteine has a positive impact on the treatment of various diseases. However, less is known about specific molecular and physiological mechanisms underlying the reported therapeutic effects. N-acetylcysteine (NAC, N-acetyl-L-cysteine) is an amino acid derivative containing a thiol group. It is a precursor of L-cysteine and glutathione. NAC is well absorbed and safe for the body at doses up to 300 mg per kg of body weight...
September 29, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28975536/asthma-disease-as-cause-of-admission-to-hospitals-due-to-exposure-to-ambient-oxidants-in-mashhad-iran
#20
Hamid Reza Ghaffari, Hamideh Ebrahimi Aval, Ahmad Alahabadi, Adel Mokammel, Ramzanali Khamirchi, Samira Yousefzadeh, Ehsan Ahmadi, Abolfazl Rahmani-Sani, Mehdi Estaji, Amin Ghanbarnejad, Abdolmajid Gholizadeh, Mahmoud Taghavi, Mohammad Miri
Nowadays, asthma is one of the most common chronic respiratory diseases, worldwide. Many reports have emphasized the correlation between the short-term exposure to the ambient air pollutants and acute respiratory diseases, especially among children with asthmatic symptoms. The aim of this study was to evaluate the relationship between the exposure to three atmospheric antioxidants (NO2, SO2, and O3) and hospital admission due to asthmatic disease (HAAD) in the city of Mashhad, Iran. The concentrations of atmospheric antioxidants were obtained from the real-time monitoring stations located in the city...
October 4, 2017: Environmental Science and Pollution Research International
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