Search results for " nitric oxide."

showing 10 items of 118 documents

Lipid peroxidation and nitric oxide metabolites in a group of subjects with obstructive sleep apnea syndrome.

2015

It is known that in OSAS the plasma lipid peroxidation has an opposite behavior in comparison with nitric oxide metabolites. In the re-examination of our survey of OSAS subjects we calculated the ratio between thiobarbituric acid reactive substances (TBARS) and nitric oxide metabolites (NOx) in relation to OSAS severity. The study has regarded 48 OSAS subjects subdivided in two subgroups according to the apnea/hypopnea index - AHI- (Low = 21 subjects with AHI30 and High = 27 subjects with AHI30). From the obtained data it is evident that the TBARS/NOx ratio is significantly higher in the H subgroup compared to L subgroup as well as this ratio is reduced in L subgroup in comparison with the …

Malemedicine.medical_specialtyPhysiologyThiobarbituric acidobstructive sleep apnea syndrome030204 cardiovascular system & hematologyNitric OxideNitric oxideLipid peroxidation03 medical and health scienceschemistry.chemical_compound0302 clinical medicinestomatognathic systemnitric oxide metabolitePhysiology (medical)Internal medicineTBARSLipid peroxidation; nitric oxide metabolites; obstructive sleep apnea syndrome; Female; Humans; Lipid Peroxidation; Male; Middle Aged; Nitric Oxide; Sleep Apnea Obstructive; Physiology; Hematology; Cardiology and Cardiovascular Medicine; Physiology (medical)MedicineHumansNOxSleep Apnea Obstructivebusiness.industryApneaHematologyMiddle Agedmedicine.diseasenervous system diseasesrespiratory tract diseasesObstructive sleep apneaEndocrinology030228 respiratory systemchemistryFemaleLipid Peroxidationmedicine.symptomCardiology and Cardiovascular MedicinebusinessHypopneaHumanClinical hemorheology and microcirculation
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Nitric oxide metabolites, leukocyte activation markers and oxidative status in dialyzed subjects.

2008

<i>Aims:</i> Our purpose was to evaluate, in a group of 42 end-stage renal disease patients who regularly undergo hemodialysis, some indexes of leukocyte activation, nitric oxide metabolites (NOx) and other parameters that reflect the oxidative stress before and after a standard hemodialysis session. <i>Methods:</i> Elastase and myeloperoxidase (MPO) were determined by means of ELISA. The NO production was evaluated by a micromethod which measures the concentration of NOx. The oxidation of polyunsaturated fatty acids was evaluated in plasma by detection of thiobarbituric acid-reactive substances (TBARS). Total antioxidant status (TAS) was obtained using spectrophotom…

Malemedicine.medical_treatmentActivation markersOxidative phosphorylationHemodialysis Oxidative status Nitric oxide Elastase MyeloperoxidasePharmacologyNitric OxideThiobarbituric Acid Reactive SubstancesAntioxidantsNitric oxidechemistry.chemical_compoundRenal DialysisLeukocytesmedicineHumansAgedPeroxidasechemistry.chemical_classificationbiologyElastaseHematologyGeneral MedicineMiddle AgedOxidative StressEnzymechemistryNephrologyMyeloperoxidaseImmunologybiology.proteinKidney Failure ChronicFemaleHemodialysisLeukocyte Elastase
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Relaxant effects of flavonoids on the mouse isolated stomach: structure-activity relationships.

2008

Flavonoids are a large heterogeneous group of benzo-gamma-pyrone derivatives, which are abundantly present in our diet. In this study we investigated the effects of six flavonoids (apigenin, genistein, quercetin, rutin, naringenin and catechin) on the gastric tone in mouse isolated stomach. The mechanical activity was recorded as changes of intraluminal pressure. All flavonoids tested produced a concentration-dependent relaxation, which was reversible after washout. The relative order of potency of the flavonoids was apigenin> or =genistein>quercetin>naringenin> or =rutin>catechin. Analysis of the chemical structure showed that the relaxant activity was progressively diminished by the prese…

NaringeninMalePotassium ChannelsFlavonoidGenisteinAction PotentialsIn Vitro TechniquesNitric OxideSettore BIO/09 - FisiologiaNitric oxidechemistry.chemical_compoundRutinMiceStructure-Activity RelationshipFlavonoids gastric relaxation smooth muscle potassium channels nitric oxideAnimalsheterocyclic compoundsPharmacologychemistry.chemical_classificationFlavonoidsNeuronsDose-Response Relationship DrugStomachfood and beveragesCatechinMuscle SmoothMice Inbred C57BLchemistryBiochemistryGastric MucosaApigeninProstaglandinsQuercetinMuscle ContractionEuropean journal of pharmacology
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Redox signaling in acute pancreatitis

2015

Acute pancreatitis is an inflammatory process of the pancreatic gland that eventually may lead to a severe systemic inflammatory response. A key event in pancreatic damage is the intracellular activation of NF-κB and zymogens, involving also calcium, cathepsins, pH disorders, autophagy, and cell death, particularly necrosis. This review focuses on the new role of redox signaling in acute pancreatitis. Oxidative stress and redox status are involved in the onset of acute pancreatitis and also in the development of the systemic inflammatory response, being glutathione depletion, xanthine oxidase activation, and thiol oxidation in proteins critical features of the disease in the pancreas. On th…

NecrosisGSH reduced glutathioneSTAT3 signal transducer and activator of transcription 3ERK extracellular signal-regulated kinasesClinical BiochemistryCCK cholecystokininTRAFs TNF receptor associated factorsReview ArticleIκB kinasePharmacologymedicine.disease_causeBiochemistrySHP small heterodimer partnerSTIM1 stromal interaction molecule 1chemistry.chemical_compoundHATs histone acetyltransferasesMedicineASK1GCL glutamate cysteine ligaseTNF-α tumor necrosis factor alphaIKK IκB kinaseNOS nitric oxide synthaseAcute inflammationHIF hypoxia inducible factorlcsh:QH301-705.5NF-κB nuclear factor kappa BDAMPs damage-associated molecular pattern moleculeslcsh:R5-920biologyGSSG oxidized glutathioneNF-kappa BNLRs nucleotide-binding oligomerization domain (NOD) like receptorsTRADD tumor necrosis factor receptor type 1-associated DEATH domain proteinTRPC3 transient receptor potential channel 3VEGF vascular endothelial growth factorGlutathioneTNFR tumor necrosis factor receptorHMGB1 high-mobility group Box 1 proteinIP3R inositol 145-trisphosphate receptor type 3VCAM-1 Vascular Cell adhesion protein 1Acute DiseaseJNK c-Jun N-terminal kinaseAcute pancreatitisTLRs toll-like receptorsmedicine.symptomlcsh:Medicine (General)Oxidation-ReductionAP-1 activator protein-1Signal TransductionmRNA messenger ribonucleic acidHMGB1ASC apoptosis-associated speck-like protein containing a carboxy-terminal CARDRNS reactive nitrogen speciesPTPs protein tyrosine phosphatasesROS reactive oxygen speciesNADH nicotinamide adenine dinucleotidepHe extracellular pHFAEE fatty acid ethyl estersAP acute pancreatitisHumansXanthine oxidaseCBP CREB-binding proteinRyR endoplasmic reticulum membrane ryanodine receptorsMDA malondialdehydeNO nitric oxideXO xanthine oxidaseASK1 apoptosis signal-regulating kinase-1business.industryOrganic ChemistryAutophagyNADPH nicotinamide adenine dinucleotide phosphateHDACs histone deacetylasesmedicine.diseaseCARS compensatory anti-inflammatory response syndromeXDH xanthine dehydrogenaseIL interleukinIκB inhibitor of kappa BAcute pancreatitisETC Electron transport chainPancreatitisMKPs MAPK phosphatasesSAP severe acute pancreatitischemistrylcsh:Biology (General)DTT dithiothreitolOxidative stressNAC N-acetyl cysteineImmunologybiology.proteinCalciumLysosomesReactive Oxygen SpeciesbusinessMAPK mitogen-activated protein kinaseOxidative stressERCP endoscopic retrograde cholangiopancreatographyRedox Biology
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Economic impact of mepolizumab in uncontrolled severe eosinophilic asthma, in real life

2021

Abstract Background and aims Severe asthma is burdened by frequent exacerbations and use of oral corticosteroids (OCS) which worsen patients’ health and increase healthcare spending. Aim of this study was to assess the clinical and economic effect of adding mepolizumab (MEP) for the treatment of these patients. Methods Patients >18 years old, referred to 8 asthma clinics, starting MEP between May 2017 and December 2018, were enrolled and followed-up for 12 months. Information in the 12 months before mepolizumab were collected retrospectively. The evaluation parameters included: OCS use, number of exacerbations/hospitalizations, concomitant therapies, comorbidity, and annual number of workin…

OR Odds RatioPediatricsSevere asthmaExacerbationAnti IL-5; Comorbidities; Mepolizumab; OCS; Pharmacoeconomics; Severe asthmagastroesophageal reflux diseaseSettore MED/10 - MALATTIE DELL'APPARATO RESPIRATORIOICS inhaled corticosteroidRate ratioOCS Oral Corticosteroidslaw.inventionComorbiditiesLAMA long acting muscarinic antagonist0302 clinical medicineRandomized controlled trialfractional nitric oxideInterquartile rangelawlong acting beta 2 agonistOdds RatioImmunology and AllergyRR Rate Ratio030223 otorhinolaryngologyPharmacoeconomicLOS Length of stayLOSIQRLAMAMEP MepolizumabORCISD Standard DeviationMEPPharmacoeconomicsACT Asthma Control TestComorbiditieCI Confidence Intervalsmedicine.druglcsh:Immunologic diseases. AllergyPulmonary and Respiratory Medicinemedicine.medical_specialtyinterquartile rangelong acting muscarinic antagonistImmunologyLABALABA long acting beta 2 agonistComorbidities Mepolizumab OCS Pharmacoeconomics Severe asthma Anti IL-5RRArticleRate Ratiochronic obstructive pulmonary disease03 medical and health sciencesPharmacoeconomicsOCS Oral CorticosteroidAsthma Control TestConfidence IntervalsFeNO fractional nitric oxideRCTs Randomized Controlled TrialmedicineCOPDGERD gastroesophageal reflux diseaseFeNOIQR interquartile rangeMepolizumabSDAsthmaRCTsOral Corticosteroidsbusiness.industryGERDmedicine.diseaseICS inhaled corticosteroidsACTComorbidityRandomized Controlled TrialsCI Confidence IntervalRCTs Randomized Controlled TrialsOCSCOPD chronic obstructive pulmonary disease030228 respiratory systemICSStandard DeviationLength of stayAnti IL-5inhaled corticosteroidslcsh:RC581-607businessMepolizumab
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Traditional Chinese herbal medicine at the forefront battle against COVID-19: Clinical experience and scientific basis.

2020

Abstract Background Throughout the 5000-year history of China, more than 300 epidemics were recorded. Traditional Chinese herbal medicine (TCM) has been used effectively to combat each of these epidemics’ infections, and saved many lives. To date, there are hundreds of herbal TCM formulae developed for the purpose of prevention and treatment during epidemic infections. When COVID-19 ravaged the Wuhan district in China in early January 2020, without a deep understanding about the nature of COVID-19, patients admitted to the TCM Hospital in Wuhan were immediately treated with TCM and reported later with >90% efficacy. Approach We conducted conduct a systematic survey of various TCM herbal pre…

PTGS2 Prostaglandin-endoperoxide synthase 2BattleAIV avian influenza virusCoV coronavirusPharmaceutical ScienceiNOS nitric oxide synthaseViral infection0302 clinical medicinePA patchouli alcoholSARS Severe Acute Respiratory SyndromeSMD Sheganmahuang decoctionDrug DiscoveryPandemicIL InterleukinMedicine Chinese TraditionalALI acute lung injuriesmedia_commonCOVID-19 coronavirus disease 2019MXSG Ma xing shi gan decoction0303 health sciencesTNF tumor necrosis factorClinical Trials as TopicCCL2 CC chemokine ligand 2FM1 FM1 coronavirusICU intensive care unitc-AMP cyclic adenosine phosphateHIV human immunodeficiency virus030220 oncology & carcinogenesisCOX-2 cyclooxygenase-2Molecular MedicineHerbal preparationsMedicinal herbsAbbreviations: ACE2 angiotensin-converting enzyme IITCM traditional Chinese medicineHSV-1 herpes simplex virus 1CASP3 caspase 3medicine.medical_specialtyChinaCoronavirus disease 2019 (COVID-19)Systematic surveymedia_common.quotation_subjectJEV Japanese encephalitis virusNF-κB nuclear factor kappa B cellsAntiviral AgentsArticleWHO World Health Organization03 medical and health sciencesIEC-6 rat intestinal epithelial cell line 6SOD superoxide dismutaseCDC Center for Disease Control and PreventionmedicineAVP arginine vasopressinPGE2 prostaglandin E2HumansIntensive care medicineLH Lianhuaqingwen capsule030304 developmental biologyPharmacologyMedicinal herbMDA malondialdehydeGCGJ Gancao ganjiang decoctionNO nitric oxidePlants Medicinalbusiness.industrySARS-CoV-2COVID-19CXCL C-X-C- motif chemokineMDCK Madin-Darby Canine Kidney cellsTLR-4 Toll-like receptor-4COVID-19 Drug TreatmentComplementary and alternative medicineViral infectionLPS lipopolysaccharidesRSV respiratory syncytial virusQFPD Qingfeipaidu decoctionbusinessLung congestionECMO extracorporeal membrane oxygenationMAPK mitogen-activated protein kinasePhytotherapyDrugs Chinese HerbalPhytomedicine : international journal of phytotherapy and phytopharmacology
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ENVIRONMENTAL EFFECTS ON FRACTIONAL EXHALED NITRIC OXIDE IN ALLERGIC CHILDREN

2011

Fractional exhaled nitric oxide (FeNO) is a non-invasive marker of airway inflammation in asthma and respiratory allergy. Environmental factors, especially indoor and outdoor air quality, may play an important role in triggering acute exacerbations of respiratory symptoms. The authors have reviewed the literature reporting effects of outdoor and indoor pollutants on FeNO in children. Although the findings are not consistent, urban and industrial pollution—mainly particles (PM2.5 and PM10), nitrogen dioxide (NO2), and sulfur dioxide (SO2)—as well as formaldehyde and electric baseboard heating have been shown to increase FeNO, whilst ozone (O3) tends to decrease it. Among children exposed to …

Pathologymedicine.medical_specialtyNICOTINE EXPOSUREair pollutionAir pollutionReview Articlemedicine.disease_causeoutdoorTobacco smokechemistry.chemical_compoundchildrenEnvironmental healthmedicineImmunology and AllergyNitrogen dioxideRespiratory systemindoorAsthmabusiness.industryOutdoor air qualityrespiratory systemmedicine.diseaserespiratory tract diseaseschemistryExhaled nitric oxideexhaled nitric oxidebusinessallergic asthma
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DNA strand breaks induced by nuclear hijacking of neuronal NOS as an anti-cancer effect of 2-methoxyestradiol

2015

2-Methoxyestradiol (2-ME) is a physiological metabolite of 17β-estradiol. At pharmacological concentrations, 2-ME inhibits colon, breast and lung cancer in tumor models. Here we investigated the effect of physiologically relevant concentrations of 2-ME in osteosarcoma cell model. We demonstrated that 2-ME increased nuclear localization of neuronal nitric oxide synthase, resulting in nitro-oxidative DNA damage. This in turn caused cell cycle arrest and apoptosis in osteosarcoma cells. We suggest that 2-ME is a naturally occurring hormone with potential anti-cancer properties.

Pathologymedicine.medical_specialtyneuronal nitric oxide synthaseCell cycle checkpoint2-methoxyestradiolDNA damageAntineoplastic AgentsApoptosisBone NeoplasmsNitric Oxide Synthase Type Imedicine.disease_causeNitric OxideNitric oxidechemistry.chemical_compoundReactive nitrogen specieCell Line TumormedicineHumans2-MethoxyestradiolReactive nitrogen speciesCytokinesisOsteosarcomaEstradiolbusiness.industryDNA BreaksIntracellular Signaling Peptides and ProteinsCancermedicine.diseaseReactive Nitrogen SpeciesG2 Phase Cell Cycle CheckpointsOxidative StressOncologychemistryApoptosis2-methoxyestradiol; Neuronal nitric oxide synthase; Nitric oxide; Osteosarcoma; Reactive nitrogen species; OncologyCancer researchM Phase Cell Cycle CheckpointsbusinessTumor Suppressor p53-Binding Protein 1Oxidative stressmedicine.drugResearch Paper
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Environment Exposure to Pollutants

2015

Effects of exposure to welding fume on lung function: results from the German WELDOX study. M. Lehnert, F. Hoffmeyer, K. Gawrych, A. Lotz, E. Heinze, H. Berresheim, R. Merget, V. Harth, R. Van Gelder, J.-U. Hahn, A. Hartwig, T. Weiss, B. Pesch, and T. Bruning, for the WELDOX Study Group Disability-Adjusted Life Years in the Assessment of Health Effects of Traffic-Related Air Pollution. L. Adamkiewicz, A.J. Badyda, A. Gayer, and D. Mucha Impact of Traffic-Related Air Pollution on Health. J. Jakubiak-Lasocka, J. Lasocki, R. Siekmeier, and Z. Chlopek Traffic-related air pollution and respiratory tract efficiency. A.J. Badyda, P. Dabrowiecki, P.O. Czechowski, G. Majewski, and A. Doboszynska Dif…

Pollutantbusiness.industryEnvironmental healthDomestic wasteExhaled nitric oxidemedicineExhaled breath condensateIn patientOzone exposuremedicine.diseasebusinessOccupational asthmaLung function
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Fractional exhaled nitric oxide as a predictor of response to inhaled corticosteroids in patients with non-specific respiratory symptoms and insignif…

2017

Chronic non-specific respiratory symptoms are difficult to manage. This trial aimed to evaluate the association between baseline fractional exhaled nitric oxide (FeNO) and the response to inhaled corticosteroids in patients with non-specific respiratory symptoms.In this double-blind randomised placebo-controlled trial, we enrolled undiagnosed patients, aged 18-80 years, with cough, wheeze, or dyspnoea and less than 20% bronchodilator reversibility across 26 primary care centres and hospitals in the UK and Singapore. Patients were assessed for 2 weeks before being randomly assigned (1:1) to 4 weeks of treatment with extrafine inhaled corticosteroids (QVAR 80 μg, two puffs twice per day, equi…

Pulmonary and Respiratory MedicineAdultMalePediatricsmedicine.medical_specialtyAdolescentmedicine.drug_classPlaceboNitric Oxidelaw.invention03 medical and health sciencesYoung Adult0302 clinical medicineRandomized controlled trialDouble-Blind MethodlawBronchodilatorWheezeInternal medicineAdministration InhalationmedicineHumans030212 general & internal medicineAnti-Asthmatic AgentsRespiratory systemAdverse effectAgedAged 80 and overInhalationbusiness.industryBeclomethasoneMiddle Agedrespiratory systemRespiration Disordersrespiratory tract diseasesTreatment Outcome030228 respiratory systemExhalationExhaled nitric oxideFemaleHuman medicinemedicine.symptombusiness
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