Search results for "Chronic obstructive"

showing 10 items of 321 documents

Riociguat versus sildenafil on hypoxic pulmonary vasoconstriction and ventilation/perfusion matching

2017

Introduction Current treatment with vasodilators for pulmonary hypertension associated with respiratory diseases is limited by their inhibitory effect on hypoxic pulmonary vasoconstriction (HPV) and uncoupling effects on ventilation-perfusion (V'/Q'). Hypoxia is also a well-known modulator of the nitric oxide (NO) pathway, and may therefore differentially affect the responses to phosphodiesterase 5 (PDE5) inhibitors and soluble guanylyl cyclase (sGC) stimulators. So far, the effects of the sGC stimulator riociguat on HPV have been poorly characterized. Materials and methods Contraction was recorded in pulmonary arteries (PA) in a wire myograph. Anesthetized rats were catheterized to record …

MaleAnoxemiaPulmonologyPulmonary FibrosisVasodilator Agentslcsh:MedicineVasodilation030204 cardiovascular system & hematologyPharmacologyVascular Medicinechemistry.chemical_compound0302 clinical medicineSoluble Guanylyl CyclaseHypoxic pulmonary vasoconstrictionPulmonary fibrosisMedicine and Health SciencesPulmonary Arterieslcsh:ScienceHypoxiaMultidisciplinaryVasodilatorsDrugsRespiratory organs diseasesArteriesMiddle AgedChemistryPhysical Sciencescardiovascular systemFemalemedicine.symptomAnatomyMedicamentsmedicine.drugResearch ArticleChemical Elementsinorganic chemicalsSildenafilHypertension PulmonaryChronic Obstructive Pulmonary DiseaseEnzyme ActivatorsIn Vitro TechniquesPulmonary ArteryRiociguatSildenafil CitrateMalalties de l'aparell respiratori03 medical and health sciencesMedical HypoxiamedicineVentilation-Perfusion RatioAnimalsHumansRats WistarAgedPharmacologybusiness.industrylcsh:RAnoxèmiaBiology and Life SciencesHypoxia (medical)Phosphodiesterase 5 Inhibitorsmedicine.diseasePulmonary hypertensionFibrosisRatsOxygenDisease Models AnimalPyrimidines030228 respiratory systemchemistryVasoconstrictionCardiovascular AnatomyPyrazolesBlood Vesselslcsh:QSoluble guanylyl cyclasebusinessDevelopmental Biology
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BODE index or geriatric multidimensional assessment for the prediction of very-long-term mortality in elderly patients with chronic obstructive pulmo…

2013

BACKGROUND a multidimensional approach-the BODE index-has been proposed for prognostic purposes in chronic obstructive pulmonary disease (COPD) and theoretically seems to be well suited for elderly people, but there is a lack of data in this population, especially with respect to long-term survival. The objective of this study is to evaluate whether the BODE index can predict both long (5 years) and very-long (10 and 15 years)-term mortality in an unselected population of elderly people with COPD better than a set of variables commonly taken into account in a geriatric multidimensional assessment (MDA). METHODS : this was a multicentre, prospective, population study. We used data from the S…

MaleBODE indexAgingmedicine.medical_specialtyPhysical disabilityPopulationCohort StudiesPulmonary Disease Chronic ObstructivePredictive Value of TestsInternal medicinemedicineHumansLongitudinal StudiesProspective StudieseducationProspective cohort studyGeriatric AssessmentAgedProportional Hazards ModelsAged 80 and overeducation.field_of_studyCOPDbusiness.industryGeneral Medicinemedicine.diseasehumanitiesRespiratory Function TestsSurvival RateMoodItalyQuartilePhysical therapyPopulation studyFemaleGeriatrics and GerontologybusinessAge and Ageing
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TGF-β Signaling Pathways in Different Compartments of the Lower Airways of Patients With Stable COPD

2017

Background: The expression and localization of transforming growth factor-β (TGF-β) pathway proteins in different compartments of the lower airways of patients with stable COPD is unclear. We aimed to determine TGF-β pathway protein expression in patients with stable COPD. Methods: The expression and localization of TGF-β pathway components was measured in the bronchial mucosa and peripheral lungs of patients with stable COPD (n = 44), control smokers with normal lung function (n = 24), and control nonsmoking subjects (n = 11) using immunohistochemical analysis. Results: TGF-β1, TGF-β3, and connective tissue growth factor expression were significantly decreased in the bronchiolar epithelium…

MaleCCN2 connective tissue growth factorSmad Proteinsairway inflammationCritical Care and Intensive Care MedicineTRAP-1 transforming growth factor-β receptor-associated binding proteinPulmonary Disease Chronic ObstructiveLAP latency-associated peptideSMAD small mother against decapentaplegicBAMBI CTGF SMAD TGF-B airway inflammation autoimmunityLungTGF transforming growth factorLLC large latent complexBAMBI CTGF SMAD TGF-β Airway Inflammation AutoimmunityautoimmunityMiddle Agedrespiratory systemLTBP latent transforming growth factor-β binding proteinImmunohistochemistryTGIF 5′-TG-3′-interacting factorECM extracellular matrixTGFBI transforming growth factor-β-induced proteinFemaleCardiology and Cardiovascular MedicinePI3K phosphoinositide 3-kinaseSignal TransductionTGF-βPulmonary and Respiratory MedicineTGF-βR TGF-β receptorSocio-culturaleBronchiRespiratory MucosaArticleTGF-BTransforming Growth Factor beta1Transforming Growth Factor beta3Macrophages AlveolarHumansAgedBAMBI; CTGF; SMAD; TGF-β; airway inflammation; autoimmunityBAMBIMembrane ProteinsCTGFBMP bone morphogenetic proteinBAMBI; CTG; SMAD; TGF-β; airway inflammation; autoimmunityCTGBAMBI bone morphogenetic proteins and activin membrane-bound inhibitorrespiratory tract diseasesairway inflammation; autoimmunity; BAMBI; CTGF; SMAD; TGF-β; Pulmonary and Respiratory Medicine; Critical Care and Intensive Care Medicine; Cardiology and Cardiovascular MedicineCase-Control StudiesBiomarkersMAPK mitogen-activated protein kinaseSMAD
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TLR4 upregulation underpins airway neutrophilia in smokers with chronic obstructive pulmonary disease and acute respiratory failure

2010

Activation of Toll-like receptors (TLR) seems to be involved in the pathogenesis of chronic obstructive pulmonary disease (COPD). Upon TLR activation the release of defensins, including human beta defensin 2 (HBD-2), may occur. In this study, we explored the innate responses in patients with respiratory failure, with and without COPD, requiring intubation and mechanical ventilation. Mini-bronchoalveolar lavage (mini-BAL) samples were collected from nonsmoker subjects without COPD (n = 10), smokers without COPD (n = 6), and smokers with COPD (n = 15). TLR4, TLR2, and HBD-2 expression was evaluated by immunocytochemistry; interleukin (IL)-8, IP-10, and HBD-2 concentrations were evaluated by e…

MaleChemokinebeta-DefensinsLeukocytosisNeutrophilsLymphocyteImmunologySettore MED/41 - AnestesiologiaApoptosisPathogenesisPulmonary Disease Chronic ObstructivemedicineHumansImmunology and AllergyAgedAged 80 and overCOPDTUNEL assaybiologybusiness.industryChemotaxisInterleukin-8SmokingAcute Lung Injury COPD TLR4InterleukinGeneral Medicinemedicine.diseaseToll-Like Receptor 2Neutrophiliarespiratory tract diseasesToll-Like Receptor 4medicine.anatomical_structureTerminal deoxynucleotidyl transferaseAcute DiseaseImmunologybiology.proteinFemalemedicine.symptomRespiratory InsufficiencybusinessBronchoalveolar Lavage FluidHuman Immunology
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Circadian rhythm of COPD symptoms in clinically based phenotypes. Results from the STORICO Italian observational study

2019

Abstract Background Chronic Obstructive Pulmonary Disease (COPD) encompasses various phenotypes that severely limit the applicability of precision respiratory medicine. The present investigation is aimed to assess the circadian rhythm of symptoms in pre-defined clinical COPD phenotypes and its association with health-related quality of life (HR-QoL), the quality of sleep and the level of depression/anxiety in each clinical phenotype. Methods The STORICO (NCT03105999) Italian observational prospective cohort study enrolled COPD subjects. A clinical diagnosis of either chronic bronchitis (CB), emphysema (EM) or mixed COPD-asthma (MCA) phenotype was made by clinicians at enrollment. Baseline e…

MaleChronic bronchitisTime FactorsHealth StatusAnxietyHospital Anxiety and Depression ScaleSeverity of Illness IndexHealth StatuPulmonary Disease Chronic Obstructive0302 clinical medicineSurveys and QuestionnairesForced Expiratory VolumeClinical phenotypeMedicineSurveys and QuestionnaireRespiratory function030212 general & internal medicineProspective StudiesProspective cohort studyLungDepression (differential diagnoses)COPDDepressionMiddle AgedCircadian RhythmPhenotypeItalyAnxietyFemalemedicine.symptom24-hour symptoms Clinical phenotype Real-world Respiratory functionResearch ArticleHumanPulmonary and Respiratory Medicinemedicine.medical_specialtyChronic ObstructiveTime FactorSettore MED/10 - Malattie Dell'Apparato RespiratorioPulmonary Disease03 medical and health sciencesInternal medicineHumansAsthma24-hour symptoms; Clinical phenotype; Real-world; Respiratory function; Aged; Anxiety; Depression; Female; Forced Expiratory Volume; Health Status; Humans; Italy; Lung; Male; Middle Aged; Phenotype; Prospective Studies; Pulmonary Disease Chronic Obstructive; Severity of Illness Index; Sleep; Surveys and Questionnaires; Time Factors; Circadian Rhythm; Quality of LifeAgedlcsh:RC705-77924-hour symptomsbusiness.industryCorrectionlcsh:Diseases of the respiratory systemmedicine.disease24-hour symptomProspective Studie030228 respiratory systemReal-worldQuality of LifebusinessSleepRespiratory function
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The influence of smoking status on exhaled breath profiles in asthma and COPD patients

2021

Breath analysis using eNose technology can be used to discriminate between asthma and COPD patients, but it remains unclear whether results are influenced by smoking status. We aim to study whether eNose can discriminate between ever- vs. never-smokers and smoking &lt

MaleCopd patientsPharmaceutical ScienceeNoseAnalytical ChemistryPulmonary Disease Chronic Obstructive0302 clinical medicineDrug DiscoveryElectronic Nose0303 health sciencesCOPDConfoundingfood and beveragesMiddle AgedBreath Testsexhaled breathChemistry (miscellaneous)ExhalationMolecular MedicineSmoking statusFemaleAdultmedicine.medical_specialtySmoking habitPulmonary diseaseSettore MED/10 - Malattie Dell'Apparato RespiratorioArticlesmokinglcsh:QD241-44103 medical and health scienceslcsh:Organic chemistryInternal medicinemedicineHumansCOPDPhysical and Theoretical Chemistry030304 developmental biologyAsthmaVolatile Organic Compoundsbusiness.industryfungiOrganic Chemistryasthmamedicine.diseaserespiratory tract diseasesCross-Sectional Studies030228 respiratory systemBreath gas analysisROC CurveAsthma COPD eNose Exhaled breath SmokingCase-Control Studiesbusiness
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Effects of long-acting bronchodilators in COPD patients according to COPD severity and ICS use

2013

SummaryBackgroundIndacaterol is a once-daily, long-acting β2-agonist bronchodilator that improves dyspnoea and health status in patients with moderate-to-severe COPD. While its bronchodilator effects have been shown to be maintained in different patient subgroups, effects on clinical outcomes in certain subgroups are not yet defined.MethodsPost-hoc analysis of pooled clinical study data to investigate efficacy and safety of indacaterol compared with placebo and other long-acting bronchodilators (formoterol, salmeterol, open-label tiotropium) in patient subgroups defined by COPD severity (GOLD stage II or III; n = 4082) and ICS use at baseline (no/yes; n = 4088). Efficacy outcomes were troug…

MaleCopd patientsVital CapacityQuinolonesSeverity of Illness IndexPulmonary Disease Chronic ObstructiveForced Expiratory VolumeFormoterol FumarateBronchodilatorFormoterolSalmeterolSalmeterol XinafoateRandomized Controlled Trials as TopicIndacaterolCOPDMiddle AgedBronchodilator AgentsTreatment OutcomeEthanolaminesAnesthesiaIndansDrug Therapy CombinationFemaleSalmeterolmedicine.drugAdultPulmonary and Respiratory Medicinemedicine.medical_specialtymedicine.drug_classScopolamine DerivativesPlaceboDrug Administration ScheduleInternal medicineAdministration InhalationmedicineHumansCOPDAlbuterolTiotropium BromideAdrenergic beta-2 Receptor AgonistsGlucocorticoidsAgedbusiness.industryTiotropiummedicine.diseaserespiratory tract diseasesDyspneaLong actingIndacaterolFormoterolbusinessRespiratory Medicine
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High flow nasal therapy versus noninvasive ventilation as initial ventilatory strategy in COPD exacerbation: a multicenter non-inferiority randomized…

2020

Abstract Background The efficacy and safety of high flow nasal therapy (HFNT) in patients with acute hypercapnic exacerbation of chronic obstructive pulmonary disease (AECOPD) are unclear. Our aim was to evaluate the short-term effect of HFNT versus NIV in patients with mild-to-moderate AECOPD, with the hypothesis that HFNT is non-inferior to NIV on CO2 clearance after 2 h of treatment. Methods We performed a multicenter, non-inferiority randomized trial comparing HFNT and noninvasive ventilation (NIV) in nine centers in Italy. Patients were eligible if presented with mild-to-moderate AECOPD (arterial pH 7.25–7.35, PaCO2 ≥ 55 mmHg before ventilator support). Primary endpoint was the mean di…

MaleExacerbationEquivalence Trials as TopicCritical Care and Intensive Care MedicineAcute respiratory failurelaw.invention03 medical and health sciencesPulmonary Disease Chronic Obstructive0302 clinical medicineRandomized controlled triallawClinical endpointmedicineHumansCannulaAcute respiratory failure; Chronic obstructive pulmonary disease; High flow nasal cannula; High flow nasal therapy; Noninvasive ventilation030212 general & internal medicineHigh flow nasal therapyAgedCOPDbusiness.industryResearchhigh flow oxygen therapy high flow nasal cannula noninvasive ventilation COPD carbon dioxide acute respiratory failureChronic obstructive pulmonary diseaselcsh:Medical emergencies. Critical care. Intensive care. First aidOxygen Inhalation Therapylcsh:RC86-88.9Middle Agedmedicine.diseaseSymptom Flare UpConfidence intervalHigh flow nasal cannula030228 respiratory systemItalyAnesthesiaBreathingNoninvasive ventilationFemaleHigh flowbusinessNoninvasive ventilationHuman
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Functional and Prognostic Implications of the Main Pulmonary ArteryDiameter to Aorta Diameter Ratio from Chest Computed Tomography inKorean COPD Pati…

2016

Background The ratio of the diameter of the main pulmonary artery (mPA) to the diameter of the aorta (Ao) on chest computed tomography is associated with diverse clinical conditions. Herein, we determined the functional and prognostic implications of the mPA/Ao ratio in Korean chronic obstructive pulmonary disease (COPD) patients. Methods The study population comprised 226 chronic obstructive pulmonary disease patients from the Korean Obstructive Lung Disease cohort who underwent chest computed tomography. We analyzed the relationships between the clinical characteristics, including pulmonary function, echocardiography findings, St. George's Respiratory Questionnaire, 6-minute walking (6MW)…

MaleExacerbationPulmonologyPulmonary Functionlcsh:Medicine030204 cardiovascular system & hematologyPulmonary function testingDiagnostic RadiologyPulmonary Disease Chronic Obstructive0302 clinical medicineUltrasound ImagingMedicine and Health SciencesPulmonary Arterieslcsh:ScienceTomographyAortaCOPDMultidisciplinaryRadiology and ImagingArteriesMiddle AgedPrognosisObstructive lung diseaseEchocardiographyCardiologyFemaleAnatomyResearch Articlemedicine.medical_specialtyImaging TechniquesChronic Obstructive Pulmonary DiseaseCardiologyNeuroimagingPulmonary ArteryResearch and Analysis Methods03 medical and health sciencesFEV1/FVC ratioDiagnostic MedicineInternal medicinemedicine.arteryRepublic of KoreamedicineHumansAgedEmphysemaHeart Failurebusiness.industrylcsh:RBiology and Life SciencesOdds ratiomedicine.diseaseComputed Axial Tomography030228 respiratory systemHeart failurePulmonary arteryCardiovascular AnatomyBlood Vesselslcsh:QbusinessTomography X-Ray ComputedNeuroscience
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Functional Metagenomics of the Bronchial Microbiome in COPD

2015

Altres ajuts: Sociedad Catalana de Neumología; Fundació Catalana de Neumología; Fundació Parc Tauli; Marató de TV3; Sociedad Española de Neumología y Cirugía Torácica; Fundación Menarini; Generalitat Valenciana (Spain) [Prometeo/2009/092] i Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES) The course of chronic obstructive pulmonary disease (COPD) is frequently aggravated by exacerbations, and changes in the composition and activity of the microbiome may be implicated in their appearance. The aim of this study was to analyse the composition and the gene content of the microbial community in bronchial secretions of COPD patients in both stability and exacerbati…

MaleExacerbationlcsh:MedicineCarbohydrate metabolismBiologyBioinformaticsPulmonary Disease Chronic ObstructiveRNA Ribosomal 16SmedicineHumansMicrobiomeKEGGlcsh:ScienceLungAgedCOPDMultidisciplinaryLungBacteriaMicrobiotaChronic obstructive pulmonary diseaselcsh:RSputumMiddle Agedmedicine.diseasemedicine.anatomical_structureRibosomal RNAMetagenomicsImmunologyDisease ProgressionMetagenomeSputumPyrosequencingFemalelcsh:QMicrobiomeSequence databasesMetagenomicsmedicine.symptomResearch ArticlePLOS ONE
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