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Respiratory disease antioxidant

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https://www.readbyqxmd.com/read/28216579/a-plant-proteinase-inhibitor-from-enterolobium-contortisiliquum-attenuates-pulmonary-mechanics-inflammation-and-remodeling-induced-by-elastase-in-mice
#1
Osmar Aparecido Theodoro-Júnior, Renato Fraga Righetti, Rafael Almeida-Reis, Bruno Tadeu Martins-Oliveira, Leandro Vilela Oliva, Carla Máximo Prado, Beatriz Mangueira Saraiva-Romanholo, Edna Aparecida Leick, Nathalia Montouro Pinheiro, Yara Aparecida Lobo, Mílton de Arruda Martins, Maria Luiza Vilela Oliva, Iolanda de Fátima Lopes Calvo Tibério
Proteinase inhibitors have been associated with anti-inflammatory and antioxidant activities and may represent a potential therapeutic treatment for emphysema. Our aim was to evaluate the effects of a plant Kunitz proteinase inhibitor, Enterolobium contortisiliquum trypsin inhibitor (EcTI), on several aspects of experimental elastase-induced pulmonary inflammation in mice. C57/Bl6 mice were intratracheally administered elastase (ELA) or saline (SAL) and were treated intraperitoneally with EcTI (ELA-EcTI, SAL-EcTI) on days 1, 14 and 21...
February 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28197854/mitochondrial-complex-i-activity-is-conditioned-by-supercomplex-i-iii2-iv-assembly-in-brain-cells-relevance-for-parkinson-s-disease
#2
Irene Lopez-Fabuel, Monica Resch-Beusher, Monica Carabias-Carrasco, Angeles Almeida, Juan P Bolaños
The assembly of complex I (CI) with complexes III (CIII) and IV (CIV) of the mitochondrial respiratory chain (MRC) to configure I-III- or I-III-IV-containing supercomplexes (SCs) regulates mitochondrial energy efficiency and reactive oxygen species (mROS) production. However, whether the occurrence of SCs impacts on CI specific activity remains unknown to our knowledge. To investigate this issue, here we determined CI activity in primary neurons and astrocytes, cultured under identical antioxidants-free medium, from two mouse strains (C57Bl/6 and CBA) and Wistar rat, i...
February 14, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28188927/xanthohumol-isolated-from-humulus-lupulus-prevents-thrombosis-without-increased-bleeding-risk-by-inhibiting-platelet-activation-and-mtdna-release
#3
Guang Xin, Zeliang Wei, Chengjie Ji, Huajie Zheng, Jun Gu, Limei Ma, Wenfang Huang, Susan L Morris-Natschke, Jwu-Lai Yeh, Rui Zhang, Chaoyi Qin, Li Wen, Zhihua Xing, Yu Cao, Qing Xia, Ke Li, Hai Niu, Kuo-Hsiung Lee, Wen Huang
AIM: As the global population has reached 7 billion and the baby boom generation reaches old age, thrombosis has become the major contributor to the global disease burden. It has been reported that, in moderate doses, beer may protect against thrombosis. Xanthohumol (XN), an antioxidant, is found at high concentrations in hop cones (Humulus lupulus L.) and is a common ingredient of beer. Here, the aim of the present work was to investigate the effects of XN on antithrombotic and antiplatelet activities, and study its mechanism...
February 7, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28170191/metabolomic-profiling-of-pompe-disease-induced-pluripotent-stem-cell-derived-cardiomyocytes-reveals-that-oxidative-stress-is-associated-with-cardiac-and-skeletal-muscle-pathology
#4
Yohei Sato, Hiroshi Kobayashi, Takashi Higuchi, Yohta Shimada, Hiroyuki Ida, Toya Ohashi
Pompe disease (PD) is a lysosomal storage disease that is caused by a deficiency of the acid α-glucosidase, which results in glycogen accumulation in the lysosome. The major clinical symptoms of PD include skeletal muscle weakness, respiratory failure, and cardiac hypertrophy. Based on its severity and symptom onset, PD is classified into infantile and late-onset forms. Lysosomal accumulation of glycogen can promote many types of cellular dysfunction, such as autophagic dysfunction, endoplasmic reticulum stress, and abnormal calcium signaling within skeletal muscle...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28164673/nuclear-respiratory-factor-1-nrf-1-gene-expression-in-chronic-kidney-disease-patients-undergoing-hemodialysis-and-mitochondrial-oxidative-dysregulation
#5
Doaa Hashad, Iman Elgohry, Fatma Dwedar
BACKGROUND: Chronic kidney disease (CKD) is characterized by progressive irreversible deterioration of renal functions. Advanced stages of CKD are associated with oxidative stress due to the imbalance between oxidant production and antioxidant defense mechanisms. Survival of patients with end stage renal diseases is maintained on variable forms of renal replacement therapies (RRT) which include peritoneal dialysis, hemodialysis, and sometimes renal transplantation. In humans, Nuclear Respiratory Factor 1 (NRF-1) gene encodes for a transcription factor that, together with the transcriptional co-activator encoded by Peroxisome Proliferator activated Receptor Gamma coactivator 1 Alpha (PGC1-a) gene, stimulates the expression of a broad set of nuclear genes (as COX6C) which are involved in mitochondrial biogenesis and functions...
November 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28153749/energy-landscape-of-a-gstp1-polymorph-linked-with-cytological-function-decay-in-response-to-chemical-stressors
#6
Zarrin Basharat, Azra Yasmin
Gene polymorphisms lead to varied structure and functional properties. A single nucleotide polymorphism (SNP) i.e. Ile105Val (rs1695) in glutathione S-transferase P1 (GSTP1) gene influences cytological toxicity and modulates the risk to occupational diseases. Apart from this, cancer, neuropathy, NOx, SOx and ozone mediated respiratory function decline including lung inflammation, asthma, allergy etc., have been reported in people with this missense mutation. Here, the functional properties of rs1695 polymorph are revisited through a computational approach...
April 20, 2017: Gene
https://www.readbyqxmd.com/read/28149501/is-fruit-and-vegetable-intake-associated-with-asthma-or-chronic-rhino-sinusitis-in-european-adults-results-from-the-global-allergy-and-asthma-network-of-excellence-ga-2-len-survey
#7
Vanessa Garcia-Larsen, Rhonda Arthur, James F Potts, Peter H Howarth, Matti Ahlström, Tari Haahtela, Carlos Loureiro, Ana Todo Bom, Grzegorz Brożek, Joanna Makowska, Marek L Kowalski, Trine Thilsing, Thomas Keil, Paolo M Matricardi, Kjell Torén, Thibaut van Zele, Claus Bachert, Barbara Rymarczyk, Christer Janson, Bertil Forsberg, Ewa Niżankowska-Mogilnicka, Peter G J Burney
BACKGROUND: Fruits and vegetables are rich in compounds with proposed antioxidant, anti-allergic and anti-inflammatory properties, which could contribute to reduce the prevalence of asthma and allergic diseases. OBJECTIVE: We investigated the association between asthma, and chronic rhino-sinusitis (CRS) with intake of fruits and vegetables in European adults. METHODS: A stratified random sample was drawn from the Global Allergy and Asthma Network of Excellence (GA(2)LEN) screening survey, in which 55,000 adults aged 15-75 answered a questionnaire on respiratory symptoms...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/28104455/a-novel-role-for-endothelial-tetrahydrobiopterin-in-mitochondrial-redox-balance
#8
Jade Bailey, Andrew Shaw, Roman Fischer, Brent J Ryan, Benedikt M Kessler, James McCullagh, Richard Wade-Martins, Keith M Channon, Mark J Crabtree
The redox co-factor tetrahydrobiopterin (BH4) regulates nitric oxide (NO) and reactive oxygen species (ROS) production by endothelial NOS (eNOS) and is an important redox-dependent signalling molecule in the endothelium. Loss of endothelial BH4 is observed in cardiovascular disease (CVD) states and results in decreased NO and increased superoxide (O2(-)) generation via eNOS uncoupling. Genetic mouse models of augmented endothelial BH4 synthesis have shown proof of concept that endothelial BH4 can alter CVD pathogenesis...
March 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28049396/oxidative-stress-and-antioxidant-potential-of-one-hundred-medicinal-plants
#9
Waseem Hassan, Hamsa Noreen, Shakila Rehman, Shehnaz Gul, Mohammad Amjad Kamal, Jean Paul Kamdem, Bakht Zaman, Joao B T da Rocha
Reactive species are produced in biological system because of redox reactions. The imbalance in pro-oxidant and antioxidant homeostasis leads to the production of toxic reactive oxygen and nitrogen species like hydrogen peroxide, organic peroxides, hydroxyl radicals, superoxide anion and nitric oxide. Inactivation of metabolic enzymes, oxidation of biomolecules and cellular damage are some of the prominent characteristics of reactive species. Similarly, oxidative stress has been associated with more than one hundred (100) pathologies such as atherosclerosis, diabetes, cardiovascular diseases, pancreatic and liver diseases, joint disorders, cardiac fibrosis, acute respiratory distress syndrome, neurological diseases (amyotrophic lateral sclerosis, Huntington's disorder, Parkinson's disease and Alzheimer's disease), ageing and cancer etc...
January 2, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28046179/bill-e-kunkle-interdisciplinary-beef-symposium-impact-of-mineral-and-vitamin-status-on-beef-cattle-immune-function-and-health
#10
E B Kegley, J J Ball, P A Beck
The importance of optimal mineral and vitamin nutrition on improving immune function and health has been recognized in the preceding decades. In the southeast, beef cattle are raised predominantly on forages that may be limiting in nutrients for optimal health, especially trace minerals such as Cu, Zn, and Se. Clinical deficiencies of these nutrients produce classic symptoms that are common to several nutrient deficiencies (e.g., slow growth and unthrifty appearance); however, subclinical deficiencies are more widespread and more difficult to detect, yet may result in broader economic losses...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28027875/bipolar-cell-reduction-precedes-retinal-ganglion-neuron-loss-in-a-complex-1-knockout-mouse-model
#11
Lanying Song, Alfred Yu, Karl Murray, Gino Cortopassi
Inherited mitochondrial complex 1 deficiency causes Leber's hereditary Optic Neuropathy (LHON) and retinal ganglion cell (RGC) degeneration, and optic neuropathies are common in many inherited mitochondrial diseases. How mitochondrial defects pathomechanistically trigger optic neuropathy remains unclear. We observe that complex 1 -deficient Ndufs4-/- mice present with acute vision loss around p30, and this vision loss is coincident with an 'inflammatory wave'. In order to understand what causes the inflammatory wave we explored retinal pathology that occurs from p20-p30...
December 24, 2016: Brain Research
https://www.readbyqxmd.com/read/28018418/plastoquinone-and-ubiquinone-in-plants-biosynthesis-physiological-function-and-metabolic-engineering
#12
REVIEW
Miaomiao Liu, Shanfa Lu
Plastoquinone (PQ) and ubiquinone (UQ) are two important prenylquinones, functioning as electron transporters in the electron transport chain of oxygenic photosynthesis and the aerobic respiratory chain, respectively, and play indispensable roles in plant growth and development through participating in the biosynthesis and metabolism of important chemical compounds, acting as antioxidants, being involved in plant response to stress, and regulating gene expression and cell signal transduction. UQ, particularly UQ10, has also been widely used in people's life...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28018247/diaphragm-muscle-adaptation-to-sustained-hypoxia-lessons-from-animal-models-with-relevance-to-high-altitude-and-chronic-respiratory-diseases
#13
REVIEW
Philip Lewis, Ken D O'Halloran
The diaphragm is the primary inspiratory pump muscle of breathing. Notwithstanding its critical role in pulmonary ventilation, the diaphragm like other striated muscles is malleable in response to physiological and pathophysiological stressors, with potential implications for the maintenance of respiratory homeostasis. This review considers hypoxic adaptation of the diaphragm muscle, with a focus on functional, structural, and metabolic remodeling relevant to conditions such as high altitude and chronic respiratory disease...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27984243/chronic-obstructive-pulmonary-disease-and-sleep-related-disorders
#14
Sheila C Tsai
PURPOSE OF REVIEW: Sleep related disorders are common and under-recognized in the chronic obstructive pulmonary disease (COPD) population. COPD symptoms can disrupt sleep. Similarly, sleep disorders can affect COPD. This review highlights the common sleep disorders seen in COPD patients, their impact, and potential management. RECENT FINDINGS: Treatment of sleep disorders may improve quality of life in COPD patients. Optimizing inhaler therapy improves sleep quality...
March 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/27955691/early-kidney-damage-induced-by-subchronic-exposure-to-pm2-5-in-rats
#15
O G Aztatzi-Aguilar, M Uribe-Ramírez, J Narváez-Morales, A De Vizcaya-Ruiz, O Barbier
BACKGROUND: Particulate matter exposure is associated with respiratory and cardiovascular system dysfunction. Recently, we demonstrated that fine particles, also named PM2.5, modify the expression of some components of the angiotensin and bradykinin systems, which are involved in lung, cardiac and renal regulation. The endocrine kidney function is associated with the regulation of angiotensin and bradykinin, and it can suffer damage even as a consequence of minor alterations of these systems...
December 12, 2016: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/27924409/antioxidants-reverse-the-changes-in-energy-metabolism-of-rat-brain-after-chronic-administration-of-l-tyrosine
#16
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
#17
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
#18
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
#19
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
#20
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
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