0000000000041246

AUTHOR

Qing Huang

showing 4 related works from this author

Functionally relevant electric-field induced perturbations of the prosthetic group of yeast ferrocytochrome c mutants obtained from a vibronic analys…

2006

We have measured the low temperature (T = 20 K) absorption spectra of the N52A, N52V, N52I, Y67F, and N52AY67F mutants of ferrous Saccharomyces cerevisiae (baker's yeast) cytochrome c. All the bands in the Q0- and Q(v)-band region are split, and the intensity distributions among the split bands are highly asymmetric. The spectra were analyzed by a decomposition into Voigtian profiles. The spectral parameters thus obtained were further analyzed in terms of the vibronic coupling model of Schweitzer-Stenner and Bigman (Schweitzer-Stenner, R.; Bigman, D. J. Phys. Chem. B 2001, 7064-7073) to identify parameters related to electronic and vibronic perturbations of the heme macrocycle. We report th…

Porphyrinsporphyrin coreAbsorption spectroscopyCytochromebiologyChemistrySpectrum AnalysisCytochromes cSaccharomyces cerevisiaeMolecular physicsSpectral lineSurfaces Coatings and FilmsCold Temperaturechemistry.chemical_compoundMolecular dynamicsVibronic couplingnickelElectricityNormal modeElectric fieldMaterials Chemistrybiology.proteinPhysical and Theoretical ChemistryAtomic physicsHemeThe journal of physical chemistry. B
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The importance of vibronic perturbations in ferrocytochrome c spectra: a reevaluation of spectral properties based on low-temperature optical absorpt…

2005

We have measured and analyzed the low-temperature (T=10 K) absorption spectrum of reduced horse heart and yeast cytochrome c. Both spectra show split and asymmetric Q(0) and Q(upsilon) bands. The spectra were first decomposed into the individual split vibronic sidebands assignable to B(1g) (nu15) and A(2g) (nu19, nu21, and nu22) Herzberg-Teller active modes due to their strong intensity in resonance Raman spectra acquired with Q(0) and Q(upsilon) excitations. The measured band splittings and asymmetries cannot be rationalized solely in terms of electronic perturbations of the heme macrocycle. On the contrary, they clearly point to the importance of considering not only electronic perturbati…

Quantitative Biology::BiomoleculesAbsorption spectroscopyChemistryGeneral Physics and AstronomySpectral linesymbols.namesakeMolecular dynamicsElectric fieldExcited statesymbolsVibronic spectroscopyPhysical and Theoretical ChemistryAtomic physicsRaman spectroscopyLuminescenceThe Journal of chemical physics
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Geo-economic variations in epidemiology, patterns of care, and outcomes in patients with acute respiratory distress syndrome: insights from the LUNG …

2017

Background Little information is available about the geo-economic variations in demographics, management, and outcomes of patients with acute respiratory distress syndrome (ARDS). We aimed to characterise the effect of these geo-economic variations in patients enrolled in the Large Observational Study to Understand the Global Impact of Severe Acute Respiratory Failure (LUNG SAFE). Methods LUNG SAFE was done during 4 consecutive weeks in winter, 2014, in a convenience sample of 459 intensive-care units in 50 countries across six continents. Inclusion criteria were admission to a participating intensive-care unit (including transfers) within the enrolment window and receipt of invasive or non…

MaleARDSdemographyeconomicmedicine.medical_treatmentTerapéuticaair conditioningComorbidityintensive care unitdeveloped country0302 clinical medicineneuromuscular blockingmiddle agedacute myocardial-infarctionmiddle income countryProspective StudiesGeography Medicalcritically-ill patientsadultagedpriority journalrisk factorIncomegeographic-variationDeveloped countryhospitalizationprospective studyHumanPulmonary and Respiratory MedicineDeveloped Countriemedicine.medical_specialtyDeveloping countryArticle/dk/atira/pure/subjectarea/asjc/2700/274003 medical and health sciencesSíndrome respiratorio agudo graveunitsMedicalHumansIntensive care medicineDeveloping CountriesAgedhigh income countryRespiratory Distress Syndrome Adultnoninvasive ventilationAparato respiratoriomedicine.diseasemortalitymajor clinical studyProspective Studiearterial oxygen tension030228 respiratory systemARDSObservational studySociologíahealth care deliverygeographyintensive-careRisk FactorsEpidemiologyProspective cohort studyRespiratory Distress Syndromepartial pressureartificial ventilationSociología médicaMiddle Agedadult respiratory distress syndromeAged; Comorbidity; Delivery of Health Care; Developed Countries; Developing Countries; Europe; Female; Geography Medical; Humans; Income; Intensive Care Units; Male; Middle Aged; Patient Outcome Assessment; Prospective Studies; Respiratory Distress Syndrome Adult; Risk Factors; Pulmonary and Respiratory MedicineEuropeIntensive Care UnitsfemaleincomeFemaleEnfermedadinjurycohort analysigross national incomesurvivalNOmedical geographyDeveloping Countrielength of staymedicinecontrolled studyoutcome assessmentbreast-cancerMechanical ventilationdiseasebusiness.industryDeveloped Countriespatient caredeveloping country030208 emergency & critical care medicinestatistics and numerical data AgedComorbiditywinterACUTE MYOCARDIAL-INFARCTION; CRITICALLY-ILL PATIENTS; GEOGRAPHIC-VARIATION; INTENSIVE-CARE; BREAST-CANCER; MORTALITY; DISEASE; INJURY; UNITS; HOSPITALIZATIONPatient Outcome AssessmentEmergency medicineprone positiontreatment outcomebusinessDelivery of Health Care
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Immunocompromised patients with acute respiratory distress syndrome: Secondary analysis of the LUNG SAFE database

2018

Background: The aim of this study was to describe data on epidemiology, ventilatory management, and outcome of acute respiratory distress syndrome (ARDS) in immunocompromised patients. Methods: We performed a post hoc analysis on the cohort of immunocompromised patients enrolled in the Large Observational Study to Understand the Global Impact of Severe Acute Respiratory Failure (LUNG SAFE) study. The LUNG SAFE study was an international, prospective study including hypoxemic patients in 459 ICUs from 50 countries across 5 continents. Results: Of 2813 patients with ARDS, 584 (20.8%) were immunocompromised, 38.9% of whom had an unspecified cause. Pneumonia, nonpulmonary sepsis, and noncardiog…

MaleARDSmodelos logísticosDatabases Factualmedicine.medical_treatment[SDV]Life Sciences [q-bio]humanoslnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4]Kaplan-Meier EstimateCritical Care and Intensive Care MedicineAcute respiratory failureSeverity of Illness IndexCohort Studiesrandomized-trial0302 clinical medicineMechanical ventilationRisk Factorsestudios prospectivosEpidemiology80 and overicuMedicineProspective StudiesProspective cohort studyestudios de cohortesImmunodeficiencymediana edadestadísticasAged 80 and overRespiratory Distress Syndromeancianocritically-ill patientsRespirationresultado del tratamientorespiraciónStatisticslcsh:Medical emergencies. Critical care. Intensive care. First aidadultoMiddle Aged3. Good healthfailureIntensive Care UnitsTreatment OutcomeArtificialCohortprospective multicenterImmunocompromised patientsAcute respiratory failure; ARDS; Immunocompromised patients; Mechanical ventilation; Noninvasive ventilation; Critical Care and Intensive Care MedicineFemaleNoninvasive ventilationHumanestimación de Kaplan-MeierAdultmedicine.medical_specialtyLogistic ModelIntensive Care UnitSocio-culturaleunidades de cuidados intensivossurvivalStatistics NonparametricSepsisDatabases03 medical and health sciencesImmunocompromised HostInternal medicineImmunocompromised patientcancerfactores de riesgoHumansNonparametricíndice de gravedad de la enfermedadintensive-care-unitFactualAgedMechanical ventilationbusiness.industryResearchRisk FactorRespiratory Distress Syndrome Adult030208 emergency & critical care medicinelcsh:RC86-88.9medicine.diseaseRespiration ArtificialPneumoniaProspective StudieLogistic Models030228 respiratory systemmalignanciesARDShuésped inmunodeprimidoCohort StudiebusinessAcute respiratory failure; ARDS; Immunocompromised patients; Mechanical ventilation; Noninvasive ventilation; Adult; Aged; Aged 80 and over; Cohort Studies; Databases Factual; Female; Humans; Intensive Care Units; Kaplan-Meier Estimate; Logistic Models; Male; Middle Aged; Prospective Studies; Respiration Artificial; Respiratory Distress Syndrome Adult; Risk Factors; Severity of Illness Index; Statistics Nonparametric; Treatment Outcome; Immunocompromised Host
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