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Respiratory disease antioxidant

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https://www.readbyqxmd.com/read/27924409/antioxidants-reverse-the-changes-in-energy-metabolism-of-rat-brain-after-chronic-administration-of-l-tyrosine
#1
Brena P Teodorak, Giselli Scaini, Milena Carvalho-Silva, Lara M Gomes, Letícia J Teixeira, Joyce Rebelo, Samira D T De Prá, Neila Zeni, Patrícia F Schuck, Gustavo C Ferreira, Emilio L Streck
Tyrosinemia type II is a rare autosomal recessive disease caused by deficiency of hepatic tyrosine aminotransferase and is associated with neurologic and development difficulties in numerous patients. Considering that the mechanisms underlying the neurological dysfunction in hypertyrosinemic patients are poorly known and that high concentrations of tyrosine provoke mitochondrial dysfunction and oxidative stress, in the present study we investigated the in vivo influence of antioxidants (N-acetylcysteine, NAC; and deferoxamine, DFX) administration on the inhibitory effects on parameters of energy metabolism in cerebral cortex, hippocampus and striatum of rats, provoked by chronic administration of L...
December 6, 2016: Metabolic Brain Disease
https://www.readbyqxmd.com/read/27922256/statins-in-critical-care-to-give-or-not-to-give
#2
Amr S Omar, Samy Hanoura, Haifa M Aljanubi, Ahmed Mahfouz
Owing to statin's immune modulatory, anti-inflammatory, antioxidant, antithrombotic and endothelial function actions, they are widely used in the critical care settings in diverse disease scenarios. We aim to explore the evidence to globalize the utilization of statins in the intensive care practice for different indications. We carried out a search of the PubMed, Cochrane and EMBASE databases up to January 2016. We included review articles, meta-analyses, and original trials on the effects of statin therapy in the intensive care unit (ICU) combining the following MESH terms: 'satins', 'intensive care, 'cardiac surgery', 'sepsis', 'acute respiratory distress syndrome' 'pneumonia', subarachnoid hemorrhage', traumatic brain injury and 'critical illness'...
December 6, 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27919757/dietary-administration-of-bacillus-subtilis-hainup40-enhances-growth-digestive-enzyme-activities-innate-immune-responses-and-disease-resistance-of-tilapia-oreochromis-niloticus
#3
Haitian Liu, Shifeng Wang, Yan Cai, Xiaohui Guo, Zhenjie Cao, Yongzheng Zhang, Shubin Liu, Wei Yuan, Weiwei Zhu, Yu Zheng, Zhenyu Xie, Weiliang Guo, Yongcan Zhou
The probiotic properties of Bacillus subtilis HAINUP40 isolated from the aquatic environment, and the effects of dietary administration of B. subtilis HAINUP40 on the growth performance, intestinal probiotic recovery, digestive enzyme activities, innate immunity and disease resistance of tilapia (Oreochromis niloticus) were evaluated. The probiotic properties investigated include tolerance to simulated gastrointestinal stress, auto-aggregation, cell surface hydrophobicity and extracellular enzyme production...
December 2, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27899525/reactive-oxygen-species-induce-virus-independent-mavs-oligomerization-in-systemic-lupus-erythematosus
#4
Iwona A Buskiewicz, Theresa Montgomery, Elizabeth C Yasewicz, Sally A Huber, Michael P Murphy, Richard C Hartley, Ryan Kelly, Mary K Crow, Andras Perl, Ralph C Budd, Andreas Koenig
The increased expression of genes induced by type I interferon (IFN) is characteristic of viral infections and systemic lupus erythematosus (SLE). We showed that mitochondrial antiviral signaling (MAVS) protein, which normally forms a complex with retinoic acid gene I (RIG-I)-like helicases during viral infection, was activated by oxidative stress independently of RIG-I helicases. We found that chemically generated oxidative stress stimulated the formation of MAVS oligomers, which led to mitochondrial hyperpolarization and decreased adenosine triphosphate production and spare respiratory capacity, responses that were not observed in similarly treated cells lacking MAVS...
November 29, 2016: Science Signaling
https://www.readbyqxmd.com/read/27881029/pemphigus-herpetiformis-type-drug-reaction-caused-by-erdosteine-containing-mucolytic-in-a-child
#5
Gulsen Akoglu, Sibel Orhun Yavuz
Drug-related pemphigus is very rare in children. Erdosteine is a thiol compound having mucoactive, antioxidant, anti-inflammatory, and antitussive effects and is reported to be safe for treatment of acute respiratory tract diseases in children. Herein, we report a 9-year-old boy presented with pemphigus herpetiformis associated with anti-desmoglein 1 antibodies due to erdosteine consumption.
November 23, 2016: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/27865842/decreasing-smpd1-activity-in-beas-2b-bronchial-airway-epithelial-cells-results-in-increased-nrf2-activity-cytokine-synthesis-and-neutrophil-recruitment
#6
Elyse MacFadden-Murphy, Lucie Roussel, Guy Martel, Julie Bérubé, Simon Rousseau
Niemann-Pick disease (NPD) type B is a rare autosomal recessive disease characterized by variable levels of impairment in sphingomyelin phosphodiesterase 1 (SMPD1) activity. Lung involvement is the most important prognostic factor in NPD-B, with recurrent respiratory infections starting in infancy being the major cause of morbidity and mortality. We hypothesized that decreased SMPD1 activity impaired airway epithelium host defense response. SMPD1 activity was reduced using inducible shRNA. Surprisingly, decreasing SMPD1 activity by 50%, resulted in increased neutrophil recruitment, both at baseline and in response to bacterial stimulation...
November 16, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27864288/the-role-of-nuclear-factor-erythroid-2-related-factor-2-nrf-2-in-the-protection-against-lung-injury
#7
Hailin Zhao, Shiori Eguchi, Azeem Alam, Daqing Ma
Nuclear factor-erythroid 2 related factor 2 (Nrf2) is a ubiquitous master transcription factor that upregulates antioxidant response elements (AREs)-mediated expression of antioxidant enzyme and cytoprotective proteins. Activation of Nrf2 has been shown to be protective against lung injury. In the lung, diverse stimuli including environmental oxidants, medicinal agents and pathogens can activate Nrf2. Nrf2 translocates to the nucleus and binds to an antioxidant response element (ARE). Through transcriptional induction of ARE-bearing genes encoding antioxidant-detoxifying proteins, Nrf2 induces cellular rescue pathways against oxidative pulmonary injury, abnormal inflammatory and immune responses, and apoptosis...
November 18, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27848900/antioxidative-effects-of-rhodiola-genus-phytochemistry-and-pharmacological-mechanisms-against-the-diseases
#8
Yongmei Li, Jue Wu, Ruixiu Shi, Na Li, Zhice Xu, Miao Sun
Rhodiola as one of traditional medicines has been used for clinical treatments due to their strong antioxidant properties. Phytochemical analysis revealed the presence of flavonoids, phenylpropanoids, phenylethanol/benzyl alcohol derivatives, cyanogenic glycosides and terpenoids. The bioactive compounds had been demonstrated to be effective at scavenging reactive oxygen species (ROS). The structures contain phenolic hydroxyl groups and unsaturated bonds. This article reviews antioxidant capacities of the extracts and bioactive components derived from Rhodiola plants...
November 16, 2016: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/27848206/tanshinone-i-attenuates-the-effects-of-a-challenge-with-h2o2-on-the-functions-of-tricarboxylic-acid-cycle-and-respiratory-chain-in-sh-sy5y-cells
#9
Marcos Roberto de Oliveira, Cristina Ribas Fürstenau, Izabel Cristina Custódio de Souza, Gustavo da Costa Ferreira
Tanshinone I (T-I; C18H12O3) is a cytoprotective molecule. T-I has been viewed as an antioxidant and anti-inflammatory agent exerting neuroprotective actions in several experimental models. Nonetheless, the mechanisms underlying the beneficial effects of T-I in mammalian cells are not completely understood yet. Mitochondrial dysfunction has been associated with several neurodegenerative diseases which remain uncured. Therefore, there is increasing interest in compounds that may be used in the prevention or treatment of those pathologies...
November 15, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27836120/computationally-efficient-analysis-of-particle-transport-and-deposition-in-a-human-whole-lung-airway-model-part-ii-dry-powder-inhaler-application
#10
Arun V Kolanjiyil, Clement Kleinstreuer, Ruxana T Sadikot
Pulmonary drug delivery is becoming a favored route for administering drugs to treat both lung and systemic diseases. Examples of lung diseases include asthma, cystic fibrosis and chronic obstructive pulmonary disease (COPD) as well as respiratory distress syndrome (ARDS) and pulmonary fibrosis. Special respiratory drugs are administered to the lungs, using an appropriate inhaler device. Next to the pressurized metered-dose inhaler (pMDI), the dry powder inhaler (DPI) is a frequently used device because of the good drug stability and a minimal need for patient coordination...
November 3, 2016: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/27830580/effect-of-prenatal-antioxidant-intake-on-infants-respiratory-infection-is-modified-by-a-cd14-polymorphism
#11
Seo Ah Hong, Eun Lee, Sung Ok Kwon, Kyung Won Kim, Youn Ho Shin, Kang Mo Ahn, Eun-Jin Kim, Jeom-Gyu Lee, Se-Young Oh, Soo-Jong Hong
BACKGROUND: Prenatal maternal diet may influence disease susceptibility in offspring with specific genetic backgrounds. We hypothesized that interactions between prenatal antioxidant intake and polymorphisms in immunity genes infl uence respiratory tract infection (RTI) susceptibility in infants at 12 months of age. METHODS: This study included 550 infants. In the Cohort for Childhood Origin of Asthma and Allergic Diseases (COCOA) birth cohort study, prenatal maternal diet was assessed by administering a food frequency questionnaire...
November 3, 2016: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/27797333/-the-effect-of-sulodexide-on-placental-mitochondria-function-in-rats-with-experimental-preeclampsia
#12
T A Popova, V N Perfilova, G A Zhakupova, V E Verovsky, O V Ostrovskij, I N Tyurenkov
Substitution of drinking water for 1.8% NaCl in pregnant rats caused a pronounced increase in arterial pressure by 24,3% and urinary protein by 117% to day 21 of pregnancy. State 4 respiration of isolated placental mitochondria in the group of negative control was 3- and 1.5-fold higher with malate/glutamate and succinate as substrates than in placental mitochondria isolated from uncomplicated pregnant animals. This led to a decrease of the respiratory control ratio. These results suggest that development of experimental preeclampsia is accompanied by mitochondrial dysfunction through uncoupling of oxidative phosphorylation...
July 2016: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
https://www.readbyqxmd.com/read/27784618/benomyl-induced-effects-of-ormdl3-overexpression-via-oxidative-stress-in-human-bronchial-epithelial-cells
#13
Yoonjeong Jang, Ah Young Lee, Ji-Eun Kim, Sang-Hee Jeong, Jun Sung Kim, Myung-Haing Cho
The respiratory system is a major site of exposure route during pesticide use. Although pesticide exposure is associated with chronic respiratory diseases including asthma, the underlying pathophysiological mechanism remains to be elucidated. In this study, we investigated the in vitro effects of benomyl-induced ORMDL3 overexpression on the toxicological mechanism using the human bronchial epithelial cell line 16HBE14o-. Benomyl increased reactive oxygen species and Ca(2+) levels, and asthma-related ADAM33 and ORMDL3 expression in 16HBE14o- cells...
October 23, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27771935/eucalyptol-and-its-role-in-chronic-diseases
#14
Geun Hee Seol, Ka Young Kim
Patients with chronic diseases such as cardiovascular diseases, chronic respiratory diseases, and neurological diseases have been shown to benefit from treatments such as aromatherapy in addition to medication. Most chronic diseases are caused by chronic inflammation and oxidative stress as well as harmful factors. Eucalyptol (1,8-cineole), a terpenoid oxide isolated from Eucalyptus species, is a promising compound for treating such conditions as it has been shown to have anti-inflammatory and antioxidant effects in various diseases, including respiratory disease, pancreatitis, colon damage, and cardiovascular and neurodegenerative diseases...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27770804/proteases-and-oxidant-stress-control-organic-dust-induction-of-inflammatory-gene-expression-in-lung-epithelial-cells
#15
Kartiga Natarajan, Koteswara R Gottipati, Kiflu Berhane, Buka Samten, Usha Pendurthi, Vijay Boggaram
BACKGROUND: Persistant inflammatory responses to infectious agents and other components in organic dust underlie lung injury and development of respiratory diseases. Organic dust components responsible for eliciting inflammation and the mechanisms by which they cause lung inflammation are not fully understood. We studied the mechanisms by which protease activities in poultry dust extracts and intracellular oxidant stress induce inflammatory gene expression in A549 and Beas2B lung epithelial cells...
October 22, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27765361/aralia-elata-var-mandshurica-rupr-maxim-j-wen-an-overview-of-pharmacological-studies
#16
Alexander N Shikov, Olga N Pozharitskaya, Valery G Makarov
PURPOSE: Aralia elata var. mandshurica (Rupr. & Maxim.) J.Wen syn. A. mandshurica Rupr. & Maxim is evaluated for its medicinal application. The aim of this study is to analyze pharmacological studies on A. elata var. mandshurica published until December 2015. METHODS: The information regarding the chemistry, safety, effectiveness, and pharmacological and clinical effects of A. elata was systematically collected from the scientific literature through library catalogs; online services such as E-library...
November 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27764247/sirt1-pgc1%C3%AE-nf%C3%AE%C2%BAb-pathway-of-oxidative-and-inflammatory-stress-during-trypanosoma-cruzi-infection-benefits-of-sirt1-targeted-therapy-in-improving-heart-function-in-chagas-disease
#17
Xianxiu Wan, Jian-Jun Wen, Sue-Jie Koo, Lisa Yi Liang, Nisha Jain Garg
Chronic chagasic cardiomyopathy (CCM) is presented by increased oxidative/inflammatory stress and decreased mitochondrial bioenergetics. SIRT1 senses the redox changes and integrates mitochondrial metabolism and inflammation; and SIRT1 deficiency may be a major determinant in CCM. To test this, C57BL/6 mice were infected with Trypanosoma cruzi (Tc), treated with SIRT1 agonists (resveratrol or SRT1720), and monitored during chronic phase (~150 days post-infection). Resveratrol treatment was partially beneficial in controlling the pathologic processes in Chagas disease...
October 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27698449/cr-vi-induces-premature-senescence-through-ros-mediated-p53-pathway-in-l-02-hepatocytes
#18
Yujing Zhang, Yiyuan Zhang, Caigao Zhong, Fang Xiao
Hexavalent Chromium [Cr(VI)], which can be found of various uses in industries such as metallurgy and textile dying, can cause a number of human disease including inflammation and cancer. Unlike previous research that focused on Cr(VI)-induced oxidative damage and apoptosis, this study placed emphasis on premature senescence that can be induced by low-dose and long-term Cr(VI) exposure. We found Cr(VI) induced premature senescence in L-02 hepatocytes, as confirmed by increase in senescence associated-β-galactosidase (SA-β-Gal) activity...
October 4, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27679744/critical-role-of-mitochondrial-ros-is-dependent-on-their-site-of-production-on-the-electron-transport-chain-in-ischemic-heart
#19
Ngonidzashe B Madungwe, Netanel F Zilberstein, Yansheng Feng, Jean C Bopassa
Reactive oxygen species (ROS) generation has been implicated in many pathologies including ischemia/reperfusion (I/R) injury. This led to multiple studies on antioxidant therapies to treat cardiovascular diseases but paradoxically, results have so far been mixed as ROS production can be beneficial as a signaling mechanism and in cardiac protection via preconditioning interventions. We investigated whether the differential impact of increased ROS in injury as well as in protection could be explained by their site of production on the mitochondrial electron transport chain...
2016: American Journal of Cardiovascular Disease
https://www.readbyqxmd.com/read/27638694/protein-corona-modulates-uptake-and-toxicity-of-nanoceria-via-clathrin-mediated-endocytosis
#20
Julie Mazzolini, Ralf J M Weber, Hsueh-Shih Chen, Abdullah Khan, Emily Guggenheim, Robert K Shaw, James K Chipman, Mark R Viant, Joshua Z Rappoport
Particles present in diesel exhaust have been proposed as a significant contributor to the development of acute and chronic lung diseases, including respiratory infection and allergic asthma. Nanoceria (CeO2 nanoparticles) are used to increase fuel efficiency in internal combustion engines, are present in exhaust fumes, and could affect cells of the airway. Components from the environment such as biologically derived proteins, carbohydrates, and lipids can form a dynamic layer, commonly referred to as the "protein corona" which alters cellular nanoparticle interactions and internalization...
August 2016: Biological Bulletin
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