Search results for "Blood sampling"

showing 10 items of 31 documents

Circulating cell-free DNA: an up-coming molecular marker in exercise physiology.

2012

The phenomenon of circulating cell-free DNA (cfDNA) concentrations is of importance for many biomedical disciplines including the field of exercise physiology. Increases of cfDNA due to exercise are described to be a potential hallmark for the overtraining syndrome and might be related to, or trigger adaptations of, immune function induced by strenuous exercise. At the same time, exercise provides a practicable model for studying the phenomenon of cfDNA that is described to be of pathophysiological relevance for different topics in clinical medicine like autoimmune diseases and cancer. In this review, we are summarizing the current knowledge of exercise-based acute and chronic alterations i…

Cumulative Trauma DisordersPhysiologyPhysical Therapy Sports Therapy and RehabilitationInflammationApoptosisRunningEndurance trainingmedicineHumansOrthopedics and Sports MedicineExercise physiologyExercisebiologyOvertrainingbusiness.industryResistance TrainingNeutrophil extracellular trapsDNAmedicine.diseaseCirculating Cell-Free DNAbiology.proteinExercise TestPhysical EnduranceCreatine kinasemedicine.symptombusinessBiomarkersBlood samplingSports medicine (Auckland, N.Z.)
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Estrogen levels in premenopausal (prem) patients (pts) with hormone-receptor positive (HR+) early breast cancer (BC) receiving adjuvant triptorelin (…

2014

585 Background: Optimal endocrine therapy for prem pts with early HR+ BC may depend on complete estrogen suppression with GnRH-A, and is crucial for those receiving concurrent aromatase inhibitors (AI). SOFT-EST is a prospective substudy of the phase III SOFT trial. Aims of SOFT-EST are to describe estradiol (E2), estrone (E1) and estrone sulphate (E1S) during monthly Trip + E or T and to assess if there is a group in E+Trip with suboptimal estrogen suppression (SES). Methods: All pts enrolled in SOFT from selected centers who consented, selected Trip as ovarian function suppression method and were randomized to E+Trip or T+Trip were enrolled in SOFT-EST until reaching the accrual goal (E=9…

GynecologyOncologyCancer Researchmedicine.medical_specialtybiologymedicine.drug_classbusiness.industryEstroneTriptorelinchemistry.chemical_compoundOncologyExemestanechemistryEstrogenHormone receptorInternal medicinebiology.proteinmedicineAromatasebusinesshuman activitiesTamoxifenmedicine.drugBlood samplingJournal of Clinical Oncology
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Can antepartum computerized cardiotocography predict the evolution of intrapartum acid-base status in normal fetuses?

2004

Background. To study the relationship between antepartum computerized cardiotocography (cCTG) and the evolution of intrapartum fetal acid-base balance in a low-risk population. Methods. Forty-nine healthy fetuses were prospectively followed up by antepartum cCTG (Oxford System 8002), fetal scalp blood sampling at the onset of the active phase of dilatation (3 cm) and at the beginning of the second stage of labor (10 cm) and study of acid-base status at birth in the umbilical cord. Correlation studies and linear regression analysis were performed. Results. Normal prelabor cCTG was followed by normal fetal acid-base balance in the different study periods. No relationship was found between cCT…

Gynecologymedicine.medical_specialtyeducation.field_of_studyFetusPregnancymedicine.diagnostic_testbusiness.industryObstetricsPopulationObstetrics and GynecologyGeneral Medicinemedicine.diseaseUmbilical cordmedicine.anatomical_structureembryonic structuresmedicineGestationFetal Scalp SamplingCardiotocographybusinesseducationreproductive and urinary physiologyBlood samplingActa Obstetricia et Gynecologica Scandinavica
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An efficient method for subcutaneous veins localization using Near Infrared imaging

2014

In the majority of the medical treatments, intravenous catheterization is the most important phase in which skilled medical practitioners locate the best vein and perform catheterization process for medication or blood sampling. Due to the different physiological characteristics, mainly darker skin tone, scars or dehydrated condition of patients, medical staff stumbles in localization of veins. This paper proposes an enhanced method which intends to overcome the difficulty faced by medical staff in veins localization for intravenous catheterization. Using the Near Infrared imaging and image processing algorithms a novel approach for veins visualization is proposed. In order to have complete…

Intravenous catheterizationCatheterMedical staffmedicine.anatomical_structurebusiness.industrycardiovascular systemmedicineNear infrared imagingSkin toneVeinbusinessBiomedical engineeringBlood sampling2014 5th International Conference on Intelligent and Advanced Systems (ICIAS)
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Patterns of transmitted HIV drug resistance in Europe vary by risk group

2014

BACKGROUND: In Europe, a continuous programme (SPREAD) has been in place for ten years to study transmission of drug resistant HIV. We analysed time trends of transmitted drug resistance mutations (TDRM) in relation to the risk behaviour reported. METHODS: HIV-1 patients newly diagnosed in 27 countries from 2002 through 2007 were included. Inclusion was representative for risk group and geographical distribution in the participating countries in Europe. Trends over time were calculated by logistic regression. RESULTS: From the 4317 patients included, the majority was men-having-sex-with-men -MSM (2084, 48%), followed by heterosexuals (1501, 35%) and injection drug users (IDU) (355, 8%). MSM…

MaleEpidemiologygenotypeHuman immunodeficiency virus 1HIV InfectionsRNA directed DNA polymerase inhibitorhigh risk patientLogistic regressionSettore MED/42 - Igiene Generale E ApplicataMen who have sex with men0302 clinical medicineImmunodeficiency Virusesmiddle agedstatistics and numerical data10. No inequalitySubstance Abuse Intravenous0303 health sciencesadulttransmissionvirus diseasesvirus transmissionhighly active antiretroviral therapyHIV immunopathogenesis3. Good healthMedical MicrobiologyViral Pathogenshigh risk behaviorMedicineScience & Technology - Other TopicsPOPULATIONShealth programanti human immunodeficiency virus agentUSERSmedicine.medical_specialtyScienceSexual BehaviorImmunologySexually Transmitted Diseasesintravenous drug abuse-Microbiology03 medical and health sciencesAntibiotic resistanceSDG 3 - Good Health and Well-beingHuman immunodeficiency virus infectionproteinase inhibitorHumansProtease InhibitorshumanHeterosexualityMicrobial PathogensseroconversionMedicine and health sciencesScience & TechnologyGenitourinary InfectionsMUTATIONSVirologymajor clinical studyLogistic Modelstransmitted drug resistance mutationHeterosexualityHIV-1Viral Diseases:Medical sciences: 700::Basic medical dental and veterinary sciences: 710::Medical immunology: 716 [VDP]drug responsemen who have sex with menDrug resistanceClinical immunologygeographyAPPEARANCEmale homosexualityMedizinische Fakultätimmune system diseasesEpidemiologyINFECTIONMedicine and Health Sciencessubstance abuse030212 general & internal medicineriskMultidisciplinaryACTIVE ANTIRETROVIRAL THERAPYTransmission (medicine)virus mutationQRarticleObstetrics and GynecologyHIV diagnosis and managementMiddle AgedvirologyMultidisciplinary SciencesEuropeInfectious Diseasesfemale:Medisinske fag: 700::Basale medisinske odontologiske og veterinærmedisinske fag: 710::Medisinsk immunologi: 716 [VDP]Reverse Transcriptase InhibitorsHIV clinical manifestationsFemaleepidemiologyblood samplingHIV drug resistanceResearch ArticleAdultRiskrisk-groupAnti-HIV AgentsUrologyprevalenceInfectious Disease Epidemiologysexual behaviorRisk-Takingmaleantiviral resistanceInternal medicineDrug Resistance Viralmedicinecontrolled studyddc:610Homosexuality Male030304 developmental biologydrug resistanceBiology and life sciencesbusiness.industrystatistical modelHIVCD4 lymphocyte countheterosexualitynonnucleoside reverse transcriptase inhibitorHuman immunodeficiency virus 1 infectionDiagnostic medicineINDIVIDUALSdrug effectsWomen's Healthbusinesstrend study
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DALI: Defining Antibiotic Levels in Intensive Care Unit Patients: Are Current -Lactam Antibiotic Doses Sufficient for Critically Ill Patients?

2014

Background. Morbidity and mortality for critically ill patients with infections remains a global healthcare problem. We aimed to determine whether α-lactam antibiotic dosing in critically ill patients achieves concentrations associated with maximal activity and whether antibiotic concentrations affect patient outcome.Methods. This was a prospective, multinational pharmacokinetic point-prevalence study including 8 α-lactam antibiotics. Two blood samples were taken from each patient during a single dosing interval. The primary pharmacokinetic/pharmacodynamic targets were free antibiotic concentrations above the minimum inhibitory concentration (MIC) of the pathogen at both 50% (50% f TMIC) an…

MaleInternational CooperationAntibioticsadverse eventintensive care unitlaw.invention0302 clinical medicinemeropenemModels[SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseasesadverse events; continuous infusion; extended infusion; pharmacodynamics; pharmacokinetics; Aged; Anti-Bacterial Agents; Bacterial Infections; Blood Chemical Analysis; Female; Humans; Intensive Care Units; International Cooperation; Male; Microbial Sensitivity Tests; Middle Aged; Models Statistical; Prospective Studies; Treatment Outcome; beta-Lactams; Critical Illnessantibiotic therapyProspective Studiesamoxicillin plus clavulanic acidComputingMilieux_MISCELLANEOUSbeta lactam antibioticAPACHE0303 health sciencescritical illneadultclinical trial3. Good healthcontinuous infusion; extended infusion; adverse events; pharmacokinetics; pharmacodynamics.antiinfective agent[SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitologypriority journaldisease severitybeta-Lactamstatistical model Agedprospective studyHumanMicrobiology (medical)medicine.medical_specialtydrug exposureCritical IllnessImmunologybloodstream infectionMicrobial Sensitivity Testspiperacillin plus tazobactambeta-LactamsMicrobiologybeta lactam abdominal infection03 medical and health sciencescritically ill patientIntensive careAnti-Bacterial AgentcefepimepharmacodynamicsHumansDosingAdverse effectAgedModels Statistical030306 microbiologyOdds ratiomajor clinical studymortalityantibiotic sensitivityceftriaxoneProspective Studiemulticenter studypharmacodynamics.ampicillinBlood Chemical AnalysisCeftazidimeSettore MED/41 - AnestesiologiaInterquartile rangelaw030212 general & internal medicinepharmacokineticlung infectionMicrobial Sensitivity TestarticleBacterial InfectionsMiddle AgedStatisticalcontinuous infusionIntensive care unitAnti-Bacterial Agentsextended infusionIntensive Care UnitsInfectious DiseasesTreatment Outcomeadverse events; continuous infusion; extended infusion; pharmacodynamics; pharmacokinetics; Aged; Anti-Bacterial Agents; Bacterial Infections; Blood Chemical Analysis; Female; Humans; Intensive Care Units; International Cooperation; Male; Microbial Sensitivity Tests; Middle Aged; Models Statistical; Prospective Studies; Treatment Outcome; beta-Lactams; Critical Illness; Microbiology (medical); Infectious Diseasescefazolin[SDV.IMM]Life Sciences [q-bio]/Immunologyblood samplingFemalepharmacokineticsmedicine.drugmedicine.drug_classprevalencedoripenemminimum inhibitory concentrationBacterial InfectionInternal medicinemedicinecontrolled studyblood analysibusiness.industryBlood Chemical Analysiadverse eventsSurgerypharmacodynamicdrug blood levelbusiness
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Selective bilateral blood sampling from the inferior petrosal sinus in Cushing's disease: effects of corticotropin-releasing factor and thyrotropin-r…

1993

We sought to enhance the sensitivity of selective bilateral blood sampling to determine adrenocorticotropin (ACTH) and prolactin levels in the inferior petrosal sinus (IPS) by administering two stimulatory agents--corticotropin-releasing factor (CRF) and thyrotropin-releasing hormone (TRH). We then determined the ACTH and prolactin levels in the IPS of 10 patients with Cushing's disease. After peripheral administration of both CRF and TRH, ACTH levels were significantly higher on the tumor side in all patients. The prolactin level was significantly higher on the tumor side when CRF or TRH was used to stimulate pituitary secretion. Postsurgical immunohistochemistry studies revealed productio…

Maleendocrine systemPituitary glandmedicine.medical_specialtyCorticotropin-Releasing HormoneThyrotropin-releasing hormonePituitary neoplasmPetrosal Sinus SamplingSensitivity and SpecificityCushing syndromeAdrenocorticotropic HormonePituitary Gland AnteriorInternal medicinemedicineHumansRadiology Nuclear Medicine and imagingPituitary NeoplasmsCushing SyndromeThyrotropin-Releasing Hormonebusiness.industryInferior petrosal sinusCushing's diseasemedicine.diseaseProlactinProlactinmedicine.anatomical_structureEndocrinologyFemaleCardiology and Cardiovascular Medicinebusinesshormones hormone substitutes and hormone antagonistsBlood samplingCardiovascular and interventional radiology
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Adding insulin glargine vs. NPH insulin to metformin results in a more efficient postprandial β-cell protection in individuals with type 2 diabetes

2010

AIM Postprandial release of intact proinsulin (IP) is an independent marker for beta-cell dysfunction in patients with type 2 diabetes. This open-label, parallel-group, two-arm, pilot study compared the beta-cell protective effect of adding insulin glargine (GLA) vs. NPH insulin to ongoing metformin. MATERIAL AND METHODS Overall, 28 insulin-naive type 2 diabetes subjects (mean +/- SD age, 61.5 +/- 6.7 years; diabetes duration, 9.8 +/- 6.5 years; HbA1c, 7.1 +/- 0.5%; BMI, 30.7 +/- 4.3 kg/m(2)) treated with metformin and sulfonylurea were randomized to add once-daily GLA or NPH at bedtime. At baseline and after 3 months, subjects received a standardized breakfast, lunch and dinner, with pre- …

Malemedicine.medical_specialtyEndocrinology Diabetes and Metabolismmedicine.medical_treatmentInsulin IsophaneInsulin GlarginePilot ProjectsNPH insulinType 2 diabetesNPH insulinDrug Administration ScheduleEndocrinologyInsulin-Secreting CellsInternal medicineDiabetes mellitusInternal MedicinemedicineHumansHypoglycemic AgentsInsulinintact proinsulinGlycated Hemoglobinbusiness.industryInsulin glargineInsulindigestive oral and skin physiologynutritional and metabolic diseasesFastingOriginal ArticlesMiddle AgedPostprandial Periodmedicine.diseaseMetforminMetforminInsulin Long-ActingEndocrinologyPostprandialDiabetes Mellitus Type 2beta cell stressDrug Therapy CombinationFemalebusinessmedicine.drugBlood samplingDiabetes, Obesity and Metabolism
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Correlation between FIX genotype and pharmacokinetics of Nonacog alpha according to a multicentre Italian study

2016

Introduction Pharmacokinetic (PK) studies on recombinant FIX concentrate, Nonacog alpha, were conducted with different sampling time designs which gave rise to not complete and homogenous outcomes. In addition, patient's FIX genotype/PK relationship has never been investigated. Aim Investigate how different sampling times may affect PK parameters and try to find a FIX genotype/PK relationship. Patients and Methods A cohort pharmacokinetic, Nonacog Alpha single-dose, open-label, non-comparative study was conducted in eight Comprehensive Care Haemophilia Centres in Italy. Seventeen previously treated moderate or severe haemophilia B patients were enrolled. Factors IX:C one-stage clotting assa…

Malemedicine.medical_specialtyGenotypeMutation MissensePharmacokinetic030204 cardiovascular system & hematologyPharmacologyHaemophiliaGastroenterologyHemophilia BDrug Administration ScheduleCohort StudiesFactor IX03 medical and health sciences0302 clinical medicinePharmacokineticsDNA Recombinant proteinInternal medicineHaemophilia BGenotypemedicineHumansHaemophilia BGenetics (clinical)Volume of distributionClotting factorbusiness.industryCoagulantsArea under the curveGeneral MedicineHematologymedicine.diseaseRecombinant ProteinsItalyROC CurveCodon NonsenseArea Under Curvebusinesspharmacokinetics030215 immunologyBlood samplingHalf-Life
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Prolactin secretion before, during, and after chronic gonadotropin-releasing hormone agonist treatments in children.

2005

Objective To examine the effect of long-term administration of GnRH agonists (GnRHa) on PRL secretion in children affected by central precocious puberty (CPP) and growth hormone deficiency (GHD). Design Prospective analysis of blood sampling before, during, and after GnRHa treatments. Setting Pediatric endocrine center. Patient(s) One hundred nineteen and 93 children with a diagnosis of CPP and GHD, respectively. Intervention(s) Monthly depot injections of GnRHa drugs (leuprorelin acetate 3.75 mg [LA] and triptorelin 3.75 mg [TR]) administered to CPP and GHD patients for 40 and 24 months, respectively. Main Outcome Measure(s) Serum PRL levels at baseline and after 6, 12, 18, 24, 30, 36, and…

Malemedicine.medical_specialtymedicine.drug_classPuberty PrecociousGonadotropin-releasing hormoneGrowth hormone deficiencyGonadotropin-Releasing HormoneLeuprorelinInternal medicineGonadotropin-releasing hormone agonistmedicinePrecocious pubertyHumansProspective StudiesChildbusiness.industryHuman Growth HormoneObstetrics and Gynecologymedicine.diseaseTriptorelinProlactinProlactinEndocrinologyReproductive MedicineChild PreschoolFemalebusinessBlood samplingmedicine.drugFertility and sterility
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