Search results for " Middle"

showing 10 items of 1097 documents

Effect of age and asthma duration upon elastase and alpha1-antitrypsin levels in adult asthmatics

2003

In asthmatic subjects an imbalance between elastase and alpha1-antitrypsin (alpha1-PI) exists. This study aims to evaluate whether ageing per se affects the levels of elastase. Both young and elderly asthmatics with comparable severity and duration of disease, as well as young and elderly healthy subjects, underwent an induced sputum procedure to measure levels of elastase and alpha1-PI. The percentage of sputum neutrophils and eosinophils was higher in young and elderly asthmatics than in young and elderly controls. The levels of both total and active elastase were significantly higher in young and elderly asthmatics than in young and elderly controls, and directly correlated with the perc…

Pulmonary and Respiratory MedicineAdultmedicine.medical_specialtySputum CytologyPathologyAgingNeutrophilsDiseaseEosinophilSettore MED/10 - Malattie Dell'Apparato RespiratorioGastroenterologyLeukocyte CountInternal medicineForced Expiratory VolumeMedicineHumansAsthmaAgedPancreatic Elastasebusiness.industryRespiratory diseaseElastaseNeutrophilSputumsocial sciencesMiddle Agedmedicine.diseasehumanitiesPathophysiologyAsthmaEosinophilsAgeingalpha 1-AntitrypsinAdult; Aged; Aging; Asthma; Eosinophils; Forced Expiratory Volume; Humans; Leukocyte Count; Middle Aged; Neutrophils; Pancreatic Elastase; Sputum; alpha 1-AntitrypsinSputummedicine.symptombusinessHuman
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Chronic obstructive lung disease “expert system”: Validation of a predictive tool for assisting diagnosis

2018

Purpose: The purposes of this study were development and validation of an expert system (ES) aimed at supporting the diagnosis of chronic obstructive lung disease (COLD). Methods: A questionnaire and a WebFlex code were developed and validated in silico. An expert panel pilot validation on 60 cases and a clinical validation on 241 cases were performed. Results: The developed questionnaire and code validated in silico resulted in a suitable tool to support the medical diagnosis. The clinical validation of the ES was performed in an academic setting that included six different reference centers for respiratory diseases. The results of the ES expressed as a score associated with the risk of su…

Pulmonary and Respiratory MedicineChronic ObstructivePilot ProjectsExpert SystemsSettore MED/10 - Malattie Dell'Apparato RespiratorioPulmonary DiseasePulmonary Disease Chronic ObstructiveSoftware DesignSurveys and QuestionnairesChronic obstructive lung diseaseDiagnosisSurveys and QuestionnaireHumansAge FactorPilot ProjectExpert SystemChronic obstructive lung diseasesAgedHealth PolicyEnvironmental and Occupational HealthPublic Health Environmental and Occupational HealthMethodologyAge FactorsChronic obstructive lung diseases Diagnosis Expert systems Pulmonary and Respiratory Medicine Health Policy Public Health Environmental and Occupational HealthMiddle AgedAsthmaCoughSpirometrySample SizeChronic DiseasePublic HealthChronic obstructive lung diseases; Diagnosis; Expert systems; Age Factors; Aged; Asthma; Chronic Disease; Cough; Humans; Middle Aged; Pilot Projects; Pulmonary Disease Chronic Obstructive; Sample Size; Spirometry; Expert Systems; Software Design; Surveys and QuestionnairesDiagnosiHuman
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Early outcomes and complications following cardiac surgery in patients testing positive for coronavirus disease 2019: An international cohort study

2021

The outbreak of severe acute respiratory syndromecoronavirus-2, the cause of coronavirus disease 2019 (COVID-19) in December 2019 represented a global emergency accounting for more than 2.5 million deaths worldwide.1 It has had an unprecedented influence on cardiac surgery internationally, resulting in cautious delivery of surgery and restructuring of services.2 Understanding the influence of COVID-19 on patients after cardiac surgery is based on assumptions from other surgical specialties and single-center studies. The COVIDSurg Collaborative conducted a multicenter cohort study, including 1128 patients, across 235 hospitals, from 24 countries demonstrating perioperative COVID-19 infection…

Pulmonary and Respiratory MedicineMale2019-20 coronavirus outbreakmedicine.medical_specialtyCoronavirus disease 2019 (COVID-19)Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)complication.ArticleNOCohort Studiesoutcomes; complications; following cardiac surgery; coronavirus disease 2019Postoperative ComplicationsCardiovascular Diseases; Cohort Studies; Female; Humans; Male; Middle Aged; SARS-CoV-2; COVID-19; Cardiac Surgical Procedures; Postoperative ComplicationsInternal medicineCardiovascular DiseasemedicineCardiac Surgical ProcedureHumansIn patientCardiac Surgical ProceduresLS7_4business.industrySARS-CoV-2COVID-19Middle AgedCardiac surgeryCardiovascular DiseasesoutcomeSurgeryFemaleCohort StudieCardiology and Cardiovascular Medicinebusinesscardiac surgery[SDV.MHEP]Life Sciences [q-bio]/Human health and pathologyCohort studyHuman
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Clinical and Functional Characteristics of COPD Patients Across GOLD Classifications: Results of a Multicenter Observational Study.

2019

Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease. The severity grading systems proposed by the Global initiative for Chronic Obstructive Lung Disease (GOLD) have changed over time. The aim of the study was to evaluate if the different GOLD classifications can capture the complexity of the disease by investigating the distribution of lung function and clinical parameters across the GOLD classification systems. This was an observational, retrospective, multicentre study. COPD patients were stratified according to the GOLD severity grading proposed in the 2007, and to the ABCD assessment tool present in the 2011, and 2017 versions of the initiative. Data from body plethy…

Pulmonary and Respiratory MedicineMaleChronic Obstructivemedicine.medical_specialtyphenotypeCopd patientsSettore MED/10 - Malattie dell'Apparato RespiratorioVital CapacitySocio-culturalePulmonary diseaseSeverity gradingDiseaseGOLD documentairflow obstructionurologic and male genital diseasesSeverity of Illness IndexPulmonary Disease03 medical and health sciencesLeukocyte CountPulmonary Disease Chronic Obstructive0302 clinical medicineRisk FactorsInternal medicineForced Expiratory VolumemedicineCOPDHumanseosinophil030212 general & internal medicineAgedRetrospective StudiesCOPDbusiness.industryairflow obstruction COPD eosinophil GOLD document phenotypeMiddle Agedmedicine.diseaseObstructive lung diseaserespiratory tract diseasesEosinophils030228 respiratory systemItalyairflow obstruction; COPD; eosinophil; GOLD document; phenotype; Aged; Eosinophils; Female; Forced Expiratory Volume; Humans; Inspiratory Capacity; Italy; Leukocyte Count; Male; Middle Aged; Pulmonary Disease Chronic Obstructive; Retrospective Studies; Risk Factors; Severity of Illness Index; Vital CapacityObservational studyFemalesense organsbusinessCOPD; GOLD document; airflow obstruction; eosinophil; phenotypeInspiratory CapacityCOPD
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Chronic obstructive pulmonary disease and neutrophil infiltration: role of cigarette smoke and cyclooxygenase products.

2010

Cigarette smoke is the main cause of chronic obstructive pulmonary disease (COPD), where it can contribute to the observed airway inflammation. PGE(2) is produced within human airways, and both pro- and anti-inflammatory activities have been reported. We quantitated PGE(2) concentrations in induced sputum supernatants from different groups of subjects and correlated the obtained values to neutrophil infiltration as well as to the expression of cyclooxygenase-2 (COX-2). Cigarette smoke extract (CSE) was used to evaluate the effect of smoking on COX-2 and PGE(2) receptor expression as well as on PGE(2) release in neutrophils and alveolar macrophages (AM) obtained from normal donors. The effec…

Pulmonary and Respiratory MedicineMalePhysiologyMacrophageNeutrophilsPulmonary diseaseTobacco smokeDinoprostonePulmonary Disease Chronic ObstructivePhysiology (medical)SmokemedicineCell AdhesionCigarette smokeCOPDHumansProtein IsoformsReceptors Prostaglandin EPGE(2)Respiratory systemcox-2AgedCOPDbiologybusiness.industryMacrophagesRespiratory diseaseNeutrophilSmokingProstaglandin-Endoperoxide SynthaseSputumProtein IsoformCell BiologyMiddle Agedmedicine.diseaseMacrophages; Prostaglandin-Endoperoxide Synthases; Humans; Aged; Protein Isoforms; Neutrophil Infiltration; Smoke; Smoking; Dinoprostone; Receptors Prostaglandin E; Neutrophils; Middle Aged; Sputum; Female; Male; Pulmonary Disease Chronic Obstructive; Cell Adhesionrespiratory tract diseasesNeutrophil InfiltrationProstaglandin-Endoperoxide SynthasesImmunologybiology.proteinFemaleCyclooxygenasebusinessInfiltration (medical)HumanAmerican journal of physiology. Lung cellular and molecular physiology
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Impact of allergic rhinitis on asthma: effects on bronchodilation testing

2008

A remarkable relationship exists between the upper and lower airways. Bronchial obstruction is a paramount feature of asthma, and its reversibility is considered a main step in asthma diagnosis.To investigate the degree of bronchodilation and possible risk factors related to it in patients with moderate-severe persistent allergic rhinitis alone.A total of 375 patients with moderate-severe persistent allergic rhinitis and 115 controls were prospectively and consecutively evaluated by means of clinical examination, skin prick testing, spirometry, and bronchodilation testing.Patients with rhinitis showed a significant increase in forced expiratory volume in 1 second (FEV) after bronchodilation…

Pulmonary and Respiratory MedicineSpirometryAdultMalemedicine.medical_specialtyAllergyHumans; Skin Tests; Asthma; Forced Expiratory Volume; Spirometry; Rhinitis Allergic Perennial; Allergens; Adult; Bronchial Hyperreactivity; Middle Aged; Adolescent; Female; MaleRhinitis Allergic PerennialAdolescentImmunologyPhysical examinationImmunopathologyInternal medicineForced Expiratory VolumeBronchodilationmedicineHumansImmunology and AllergySkin TestsAsthmamedicine.diagnostic_testSkin Testbusiness.industryAllergenRespiratory diseaseAllergensMiddle Agedmedicine.diseaseAsthmarespiratory tract diseasesBronchodilatationSpirometryImmunologyFemaleBronchial HyperreactivitybusinessHuman
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Alternative ways of expressing FEV1 and mortality in elderly people with and without COPD

2013

Expressing forced expiratory volume in 1 s (FEV1) as % predicted relies on the assumption of proportional variability and generalisability of prediction equations that may be unrealistic, especially for elderly people. We evaluated the prognostic implications of alternative ways of expressing FEV1. We enrolled 318 patients with chronic obstructive pulmonary disease (COPD) and 475 controls in the Salute Respiratoria nell'Anziano (SARA) study. The risk for 5-, 10- and 15-year mortality associated with FEV1 was studied by expressing FEV1 % pred, standardised by height cubed (FEV1 · Ht(-3)) and as a multiple of the sex-specific first percentile (FEV1 quotient (FEV1Q)). In the group with COPD, t…

Pulmonary and Respiratory MedicineSpirometryMalemedicine.medical_specialtyPediatricsPercentilePrognosiPulmonary diseaseSettore MED/10 - Malattie Dell'Apparato RespiratorioRate ratioPulmonary Disease Chronic ObstructiveElderly populationInternal medicineForced Expiratory VolumeHumansMedicineElderly peopleRespiratory Function TestAgedCOPDmedicine.diagnostic_testbusiness.industryRespiratory Function Tests; Spirometry; Humans; Treatment Outcome; Prognosis; Case-Control Studies; Aged; Middle Aged; Forced Expiratory Volume; Male; Female; Pulmonary Disease Chronic ObstructiveCase-control studyrespiratory systemMiddle AgedPrognosismedicine.diseaseRespiratory Function Testsrespiratory tract diseasesTreatment OutcomeSpirometryCase-Control StudiesFemalebusinessCase-Control StudieHuman
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Audiological Investigation of Otitis Media in Children with Atopy

2011

Otitis media (OM) describes an inflammatory process within the middle ear space that is generally associated with accumulation of fluid and that may lead to hearing loss, learning difficulties, and delays in language development. The pathogenesis of OM is multifactorial, involving the adaptive and native immune system, eustachian tube dysfunction, viral and bacterial load, and genetic and environmental factors. The involvement of IgE-mediated allergic reactions in the pathogenesis of OM has been suggested by clinical observations of a high prevalence of OM among patients with allergies. Evidence from studies involving tympanometric measurements, audiometric measurements, and otoscopic exami…

Pulmonary and Respiratory Medicinemedicine.medical_specialtyAllergyHearing lossImmunologyotitis media with effusion (OME)Otoscopymiddle-ear effusionAudiologyPathogenesisAtopyHypersensitivitymedicineHumansImmunology and AllergyChildOtitis mediabusiness.industryOtitis media; middle-ear effusion; acute otitis media (AOM); otitis media with effusion (OME); allergy; Auditory tube dysfunctionAudiologyEustachian tube dysfunctionmedicine.diseaseacute otitis media (AOM)allergySettore MED/32 - AudiologiaAuditory tube dysfunctionMiddle ear effusionmedicine.anatomical_structureOtitisSettore MED/31 - OtorinolaringoiatriaAcoustic Impedance TestsImmunologyMiddle earmedicine.symptombusiness
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Circulating haemopoietic and endothelial progenitor cells are decreased in COPD

2006

Circulating CD34+ cells are haemopoietic progenitors that may play a role in tissue repair. No data are available on circulating progenitors in chronic obstructive pulmonary disease (COPD). Circulating CD34+ cells were studied in 18 patients with moderate-to-severe COPD (age: mean+/-sd 68+/-8 yrs; forced expiratory volume in one second: 48+/-12% predicted) and 12 controls, at rest and after endurance exercise. Plasma concentrations of haematopoietic growth factors (FMS-like tyrosine kinase 3 (Flt3) ligand, kit ligand), markers of hypoxia (vascular endothelial growth factor (VEGF)) and stimulators of angiogenesis (VEGF, hepatocyte growth factor (HGF)) and markers of systemic inflammation (tu…

Pulmonary and Respiratory Medicinemedicine.medical_specialtyAngiogenesisCD34Antigens CD34cd34Settore MED/10 - Malattie Dell'Apparato RespiratorioSettore BIO/09 - Fisiologiachronic obstructive pulmonary diseaseimmunologyPulmonary Disease Chronic Obstructivecd34+ cellscd34+cellschemistry.chemical_compoundantigensbloodstem cellsInternal medicinegrowth factorsmiddle agedMedicineProgenitor cellhumansCD34+ cells chronic obstructive pulmonary disease exercise growth factors hypoxiacell countpulmonary diseaseCOPDchronic obstructiveexercisehypoxiabusiness.industryaged; antigens; blood; cd34; cd34+ cells; cd34+cells; cell count; chronic obstructive; chronic obstructive pulmonary disease; endothelial cells; exercise; growth factors; hematopoietic stem cells; humans; hypoxia; immunology; middle aged; pulmonary disease; stem cellsHypoxia (medical)medicine.diseaseendothelial cellshematopoietic stem cellsEndothelial stem cellVascular endothelial growth factoragedEndocrinologychemistryHepatocyte growth factormedicine.symptombusinessmedicine.drugEuropean Respiratory Journal
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Some algebraic clues towards a syntactic view on the Principles of Non-Contradiction and Excluded-Middle.

2014

This short paper just considers the possibility of a new view for posing and proving the Aristotle’s Principles of Non-Contradiction and Excluded-Middle. It is done by means of their refutability, or deducibility, respectively, under Tarski’s Consequence Operators.

Pure mathematicsSettore INF/01 - InformaticaLaw of excluded middlemedia_common.quotation_subjectShort paperComputer Science ApplicationsTheoretical Computer ScienceControl and Systems EngineeringNon-Contradiction Excluded-Middle Consequences Refutations ConjecturesModeling and SimulationCalculusFalsifiabilityContradictionAlgebraic numberInformation SystemsMathematicsmedia_common
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