Search results for "HYDROCARBONS"

showing 10 items of 368 documents

Central nervous system involvement at first relapse in patients with acute promyelocytic leukemia treated with all-trans retinoic acid and anthracycl…

2009

Background The prevalence of and risk factors for central nervous system recurrence in patients with acute promyelocytic leukemia are not well established and remain a controversial matter. Design and Methods Between 1996 and 2005, 739 patients with newly diagnosed acute promyelocytic leukemia enrolled in two consecutive trials (PETHEMA LPA96 and LPA99) received induction therapy-with all-trans retinoic acid and idarubicin. Consolidation therapy comprised three courses of anthracycline monochemotherapy (LPA96), with all-trans retinoic acid and reinforced doses of idarubicin in patients with an intermediate or high risk of relapse (LPA99). Central nervous system prophylaxis was not given. Re…

:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Cyclic::Hydrocarbons Aromatic::Polycyclic Hydrocarbons Aromatic::Naphthacenes::Anthracyclines::Daunorubicin::Idarubicin [Medical Subject Headings]:Diseases::Pathological Conditions Signs and Symptoms::Pathologic Processes::Disease Attributes::Recurrence [Medical Subject Headings]Male:Named Groups::Persons::Age Groups::Adult::Middle Aged [Medical Subject Headings]idarubicinGastroenterology:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Factors [Medical Subject Headings]:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Central Nervous System NeoplasmsLeukemia Promyelocytic AcuteRecurrenceRisk FactorsCumulative incidenceAntibiotics AntineoplasticHematologyMiddle Agedall-trans retinoic acidLeukemiamedicine.anatomical_structure:Named Groups::Persons::Age Groups::Adolescent [Medical Subject Headings]Femalemedicine.drugAcute promyelocytic leukemiaAdultcentral nervous system relapsemedicine.medical_specialty:Diseases::Neoplasms::Neoplasms by Histologic Type::Leukemia::Leukemia Myeloid::Leukemia Myeloid Acute [Medical Subject Headings]AnthracyclineAdolescentCentral nervous system:Check Tags::Male [Medical Subject Headings]TretinoinNeoplasias del sistema nervioso centralCentral nervous system diseaseTretinoinInternal medicine:Named Groups::Persons::Age Groups::Adult [Medical Subject Headings]medicineIdarubicinHumans:Named Groups::Persons::Age Groups::Adult::Aged [Medical Subject Headings]Letters to the Editor:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Acyclic::Alkenes::Polyenes::Carotenoids::Retinoids [Medical Subject Headings]Leucemia promielocítica agudaAgedAntibióticos antineoplásicosbusiness.industryprognostic factors:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Therapeutic Uses::Antineoplastic Agents::Antibiotics Antineoplastic [Medical Subject Headings]acute promyelocytic leukemiamedicine.diseaseSurgery:Diseases::Neoplasms::Neoplasms by Site::Nervous System Neoplasms::Central Nervous System Neoplasms [Medical Subject Headings]:Check Tags::Female [Medical Subject Headings]businessIdarubicin
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Perspectives for the Treatment of Brucellosis in the 21st Century: The Ioannina Recommendations

2007

Policy Forum. Competing interests: ER has received research grants from Daiichi, Bayer, and Theravance and has served as a consultant to Pfizer, Theravance, Bayer, Wyeth, Rosetta, and BiondVax. Summary Points Brucellosis remains the commonest anthropozoonosis worldwide, and its treatment remains complex, requiring protracted administration of more than one antibiotic. In November 2006, a consensus meeting aimed at reaching a common specialist statement on the treatment of brucellosis was held in Ioannina, Greece under the auspices of the International Society of Chemotherapy and the Institute of Continuing Medical Education of Ioannina. The author panel suggests that the optimal treatment o…

:Diseases::Pathological Conditions Signs and Symptoms::Pathologic Processes::Disease Attributes::Recurrence [Medical Subject Headings]Veterinary medicine:Chemicals and Drugs::Carbohydrates::Glycosides::Aminoglycosides::Streptomycin [Medical Subject Headings]:Phenomena and Processes::Microbiological Phenomena::Drug Resistance Microbial [Medical Subject Headings]DiseaseGlobal Health:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]:Health Care::Population Characteristics::Health::World Health [Medical Subject Headings]Terminología como AsuntoBrucellosi:Organisms::Eukaryota::Animals [Medical Subject Headings]:Health Care::Health Care Economics and Organizations::Organizations::International Agencies::United Nations::World Health Organization [Medical Subject Headings]Policy ForumMedicine in Developing CountriesGentamicinasDrug Resistance MicrobialBrucelosisAdhesión a DirectrizGeneral MedicineHumanosDrug CombinationsAntibacterianosDoxycyclineStreptomycinEstreptomicinaMedicine:Chemicals and Drugs::Heterocyclic Compounds::Heterocyclic Compounds with 4 or More Rings::Rifamycins::Rifampin [Medical Subject Headings]Drug Therapy CombinationGuideline AdherenceRifampinFluoroquinolonesSalud Mundialmedicine.medical_specialtyEfficacyResultado del TratamientoInvestigación BiomédicaRecurrenciaTherapeuticsWorld Health OrganizationMicrobiologyAntibiotic resistanceTerminology as Topic:Disciplines and Occupations::Social Sciences::Internationality::International Cooperation::Developing Countries [Medical Subject Headings]HumansMedical journalIntensive care medicineDeveloping Countries:Chemicals and Drugs::Heterocyclic Compounds::Heterocyclic Compounds 1-Ring::Pyrimidines::Trimethoprim::Trimethoprim-Sulfamethoxazole Combination [Medical Subject Headings]medicine.diseaseCotrimoxazoleAnimalesQuimioterapia:Humanities::Humanities::History::History Modern 1601-::History 21st Century [Medical Subject Headings]GentamicinsBrucel·losiBiomedical ResearchCommunicable diseases:Chemicals and Drugs::Heterocyclic Compounds::Heterocyclic Compounds 2-Ring::Quinolines::Quinolones::Fluoroquinolones [Medical Subject Headings]Human diseaseRecurrence:Chemicals and Drugs::Pharmaceutical Preparations::Drug Combinations [Medical Subject Headings]:Information Science::Information Science::Communication::Language::Linguistics::Terminology as Topic [Medical Subject Headings]biologyIraqi patientsRMetaanalysis:Diseases::Bacterial Infections and Mycoses::Bacterial Infections::Gram-Negative Bacterial Infections::Brucellosis [Medical Subject Headings]Historia del Siglo XXIAnti-Bacterial AgentsCombinación Trimetoprim-SulfametoxazolTreatment OutcomeInfectious Diseases:Disciplines and Occupations::Natural Science Disciplines::Science::Research::Biomedical Research [Medical Subject Headings]:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Cyclic::Hydrocarbons Aromatic::Polycyclic Hydrocarbons Aromatic::Naphthacenes::Tetracyclines::Doxycycline [Medical Subject Headings]Fluoroquinolonas:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Therapeutic Uses::Anti-Infective Agents::Anti-Bacterial Agents [Medical Subject Headings]:Chemicals and Drugs::Carbohydrates::Glycosides::Aminoglycosides::Gentamicins [Medical Subject Headings]Países en Desarrollo:Analytical Diagnostic and Therapeutic Techniques and Equipment::Therapeutics::Drug Therapy::Drug Therapy Combination [Medical Subject Headings]BrucellaHistory 21st CenturyBrucellosisWorld healthTrimethoprim Sulfamethoxazole Drug CombinationmedicineAnimals:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Prognosis::Treatment Outcome [Medical Subject Headings]Resistencia a Medicamentosbusiness.industryOrganización Mundial de la SaludBrucellosisMalalties infecciosesTerapèuticabiology.organism_classificationCombinación de MedicamentosDoxiciclinaTherapybusinessBrucella melitensisPLoS Medicine
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Sample Preparation Improvement in Polycyclic Aromatic Hydrocarbons Determination in Olive Oils by Gel Permeation Chromatography and Liquid Chromatogr…

2005

Abstract The determination of 15 polycyclic aromatic hydrocarbons (PAHs) in olive oil samples has been improved in order to obtain a fast methodology with a low limit of detection through the combination of liquid–liquid extraction with acetonitrile and preparative gel permeation chromatography (GPC) prior to the injection of purified extracts into a C18 column. Acetonitrile–water was used as the mobile phase with a gradient from 50 to 95%, w/w, acetonitrile in 30 min. The oven temperature was maintained at 15°C, and fluorometric detection was made at a fixed excitation wavelength of 264 nm and variable, optimal emission wavelength for each analyte ranging from 352 nm for 11-H-benzo(b)fluor…

AcetonitrilesTime FactorsFluoreneChemistry Techniques AnalyticalAnalytical ChemistryGel permeation chromatographychemistry.chemical_compoundPlant OilsEnvironmental ChemistryFluorometryUltrasonicsSample preparationPolycyclic Aromatic HydrocarbonsOlive OilChromatography High Pressure LiquidPharmacologychemistry.chemical_classificationDetection limitFluorantheneFluorenesMethylene ChlorideChromatographyChemistryExtraction (chemistry)TemperatureSilicon DioxideSpectrometry FluorescenceHydrocarbonChromatography GelPyreneAgronomy and Crop ScienceChromatography LiquidFood ScienceJournal of AOAC INTERNATIONAL
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Chemical initiation for butyl and lauryl acrylate monolithic columns for CEC.

2009

Butyl acrylate (BA)- and lauryl acrylate (LA)-based monolithic stationary phases for CEC were synthesized, using a redox system as initiator of polymerization. BA monoliths were initiated with ammonium peroxodisulfate, whereas LA columns were obtained with lauroyl peroxide as initiator. In both cases, TEMED was used to activate the process. The influence of porogenic solvent composition on both morphological and electrochromatographic properties of the resulting monoliths was investigated. Excellent efficiencies (minimum plate heights of 4.2-6.3 microm for BA columns and 2.6-5.3 microm for LA stationary phases, for a PAHs mixture) were achieved. The capability of separation of both types of…

AcrylateLipid PeroxidesButyl acrylateClinical BiochemistryInorganic chemistryReproducibility of ResultsLauroyl peroxideEthylenediaminesBiochemistryRedoxAnalytical Chemistrychemistry.chemical_compoundchemistryPolymerizationAcrylatesAmmonium SulfateCapillary ElectrochromatographyMicroscopy Electron ScanningAmmoniumSolvent compositionPolycyclic Aromatic HydrocarbonsGonadal Steroid HormonesNuclear chemistryElectrophoresis
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Concentrations and determinants of organochlorine levels among pregnant women in Eastern Spain

2010

Persistent organic pollutants (POPs) comprise a large variety of toxic substances with ample distribution. While exposure to these toxins occurs mainly through diet, maternal POP levels may be influenced by certain sociodemographic, environmental, or lifestyle factors. This is important given that these substances may have adverse effects on fetal development. The aim of this study is to examine the sociodemographic, environmental, lifestyle, and dietary determinants of the levels of hexachlorobenzene (HCB), b-hexachlorocyclohexane (b-HCH), 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane (4,4′-DDT), 1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene (4,4′-DDE), and polychlorinated biphenyls (PCB co…

AdultEnvironmental EngineeringDichlorodiphenyl DichloroethyleneDDTchemistry.chemical_compoundPregnancyEnvironmental healthmedicineHexachlorobenzeneHydrocarbons ChlorinatedEnvironmental ChemistryHumansWaste Management and DisposalPersistent organic pollutantPregnancyPCBOrganochlorine compoundCohortfood and beveragesHexachlorobenzenemedicine.diseasePollutionDietchemistryMaternal ExposureSpainEnvironmental chemistryCohortPopulation studyEnvironmental PollutantsFemaleBreast feedingBody mass indexHexachlorocyclohexaneCohort study
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Internal exposure of firefighting instructors to polycyclic aromatic hydrocarbons (PAH) during live fire training

2019

Firefighting instructors in live fire training are inevitably exposed to emissions containing, carcinogenic PAH. The study investigated PAH uptake in a group of firefighting instructors during short-term exposure in live fire training by urinary biomonitoring. Six firefighting instructors (non-smokers) completed five 2 h-training sessions each in a carbonaceous-fired simulation unit using self-containing breathing apparatuses (SCBA). Complying with a minimum time interval of six days between the individual training sessions, the participants provided urine samples before and immediately after, as well as 1, 3, 6, 9, 11, and 18 h after each training session. Samples were analyzed for 10 mono…

AdultMale0301 basic medicineSkin AbsorptionMetaboliteeducationPoison controlFirefightingAir Pollutants OccupationalUrineToxicologyFiresExcretion03 medical and health scienceschemistry.chemical_compound0302 clinical medicineAnimal scienceOccupational ExposureBiomonitoringHumansPolycyclic Aromatic HydrocarbonsRespiratory Protective DevicesSkinChemistryTeachingGeneral MedicinePhenanthrene030104 developmental biologyFirefightersPyrene030217 neurology & neurosurgeryEnvironmental MonitoringToxicology Letters
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Prenatal exposure to organochlorine compounds and neuropsychological development up to two years of life

2012

Polychlorinated biphenyls (PCB), hexachlorobenzene (HCB), and dichlorodiphenyl dichloroethylene (pp′DDE) are persistent, bioaccumulative, and toxic environmental pollutants with potential neurotoxic effects. Despite a growing body of studies investigating the health effects associated with these compounds, their specific effects on early neuropsychological development remain unclear. We investigated such neuropsychological effects in a population-based birth cohort based in three regions in Spain (Sabadell, Gipuzkoa, and Valencia) derived from the INMA [Environment and Childhood] Project. The main analyses in this report were based on 1391 mother–child pairs with complete information on mat…

AdultMaleDichlorodiphenyl DichloroethylenePopulationNeuropsychological TestsBayley Scales of Infant DevelopmentToxicologychemistry.chemical_compoundPregnancyEnvironmental healthHexachlorobenzeneHydrocarbons ChlorinatedmedicineHumansNeuropsychological assessmenteducationPrenatal exposurelcsh:Environmental sciencesGeneral Environmental SciencePsychomotor learninglcsh:GE1-350education.field_of_studymedicine.diagnostic_testChemistryNeuropsychologyInfantEnvironmental ExposureHexachlorobenzenePolychlorinated BiphenylsChild developmentSpainPrenatal Exposure Delayed EffectsEnvironmental PollutantsFemale
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Serum concentrations of persistent organic pollutants (POPs) in the inhabitants of a Sicilian city.

2012

Polychlorinated biphenyls (PCBs) and organochlorine pesticides are common environmental contaminants that have been associated with human health problems. OBJECTIVES: To assess serum concentrations of several organochlorine contaminants in general population living in a city with an ancient agricultural tradition and to identify possible exposure sources in Sicily. METHODS: A cross-sectional study was conducted on 101 individuals. Each participant answered a face-to-face questionnaire submitted by well-trained personnel and provided a serum sample which was analyzed for the concentrations of PCBs, HCB, HCHs and DDTs by using gas-chromatography coupled with mass spectrometry. RESULTS: HCB, p…

AdultMaleEnvironmental EngineeringHealth Toxicology and MutagenesisPopulationBiologySettore MED/42 - Igiene Generale E ApplicataGas Chromatography-Mass SpectrometryDDTPolychlorinated biphenylHuman healthfluids and secretionsEnvironmental healthSurveys and QuestionnairesHexachlorobenzeneHydrocarbons ChlorinatedEnvironmental ChemistryHumansCitieseducationSicilyreproductive and urinary physiologyAgedOrganochlorine contaminantsPollutantOrganochlorine pesticideeducation.field_of_studyorganic chemicalsPublic Health Environmental and Occupational HealthPesticide Residuesfood and beveragesOrganochlorine pesticideGeneral MedicineGeneral ChemistrySerum concentrationMiddle AgedPollutionPolychlorinated BiphenylsHuman biomonitoringCross-Sectional StudiesEnvironmental chemistryembryonic structuresEnvironmental PollutantsFemaleEnvironmental MonitoringChemosphere
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Comparison of the effect of low level laser therapy with alvogyl on the management of alveolar osteitis

2014

Background This study investigated the efficacy of low level laser therapy (LLLT) for managing alveolar osteitis (AO). Material and Methods Sixty patients with alveolar osteitis of mandibular third molars were randomly divided into three groups. In group 1, socket irrigation was followed by alvogyl placement, and the treatment was repeated 48 hours later. In group 2, socket was irradiated with a low power red laser for 3 consecutive days (200 mW, 30 seconds on each of the buccal and lingual surfaces and 30 seconds at the middle of the socket, 6 J per area). The subjects in group 3 underwent treatment with a low power infrared laser with the same parameters as group 2. A visual analogue scal…

AdultMaleMolarmedicine.medical_specialtyVisual analogue scalemedicine.medical_treatmentDry SocketDentistryOdontologíalaw.inventionYoung AdultRandomized controlled triallawEugenolOils Volatilepara-AminobenzoatesmedicineHumansProspective StudiesHydrocarbons IodinatedLow-Level Light TherapyProspective cohort studyGeneral DentistryLow level laser therapyAgedMorningbusiness.industryResearchMiddle Agedmedicine.disease:CIENCIAS MÉDICAS [UNESCO]Ciencias de la saludSurgeryDrug CombinationsDry socketOtorhinolaryngologyUNESCO::CIENCIAS MÉDICASFemaleSurgeryOral SurgeryOsteitisbusiness
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Parental Exposure to Polycyclic Aromatic Hydrocarbons and the Risk of Childhood Brain Tumors: The SEARCH International Childhood Brain Tumor Study

2004

Experimental evidence suggests that parental exposure to polycyclic aromatic hydrocarbons (PAH), which occurs primarily through tobacco smoke, occupational exposure, and air pollution, could increase the risk of cancer during childhood. Population-based case-control studies carried out in seven countries as part of the SEARCH Program compared data for 1,218 cases of childhood brain tumors and 2,223 controls (1976-1994). Parental occupational exposure to PAH during the 5-year period before birth was estimated with a job exposure matrix. Risk estimates were adjusted for child's age, sex, and study center. Paternal preconceptional occupational exposure to PAH was associated with increased risk…

AdultMalePediatricsmedicine.medical_specialtyAdolescentEpidemiologyJob-exposure matrixPopulationPhysiologyTobacco smokeRisk FactorsOccupational ExposureOdds RatiomedicineHumansPolycyclic Aromatic HydrocarbonsRisk factorChildeducationeducation.field_of_studyBrain Neoplasmsbusiness.industrySmokingInfant NewbornCase-control studyInfantOdds ratioPaternal ExposureCase-Control StudiesChild PreschoolPaternal ExposureFemaleRisk assessmentbusinessAmerican Journal of Epidemiology
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