Search results for " Catecholamines"

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From the Golgi-Cajal mapping to the transmitter-based characterization of the neuronal networks leading to two modes of brain communication: Wiring a…

2007

After Golgi-Cajal mapped neural circuits, the discovery and mapping of the central monoamine neurons opened up for a new understanding of interneuronal communication by indicating that another form of communication exists. For instance, it was found that dopamine may be released as a prolactin inhibitory factor from the median eminence, indicating an alternative mode of dopamine communication in the brain. Subsequently, the analysis of the locus coeruleus noradrenaline neurons demonstrated a novel type of lower brainstem neuron that monosynaptically and globally innervated the entire CNS. Furthermore, the ascending raphe serotonin neuron systems were found to globally innervate the forebrai…

DopamineTortuosityBrain functionWiring transmissionSynaptic TransmissionDiffusionDual probe microdialysisMicrofluorimetrychemistry.chemical_compoundCatecholaminesPressure gradientsVolume transmissionHistofluorescenceLocus coeruleusExtracellular spaceNeurological and mental disordersNeurotransmitterNeuronsNeurotransmitter AgentsGeneral NeuroscienceBrain5-HydroxytryptamineAmygdalamedicine.anatomical_structure5-Hydroxytryptamine; Amygdala; Brain function; Brain uncoupling protein-2; Catecholamines; CA turnover; Clearance; Diffusion; Dopamine; Dorsal raphe; Dual probe microdialysis; Extracellular space; Extrasynaptic receptors; Histofluorescence; Local circuits; Locus coeruleus; Mapping of monoamine neurons; Microdensitometry; Microfluorimetry; Neurological and mental disorders; Noradrenaline; Nucleus accumbens; Pressure gradients; Receptor mosaics; Receptor–receptor interactions; Substantia nigra; Thermal gradients; Tortuosity; Transmitter–receptor mismatches; Volume fraction; Volume transmission; Wiring transmissionClearanceNucleus accumbensCA turnoverLocal circuitsReceptor–receptor interactionsSilver StainingMapping of monoamine neuronsModels NeurologicalNeurotransmissionBiologySerotonergicSubstantia nigramedicineBiological neural networkAnimalsHumansThermal gradientsTransmitter–receptor mismatchesVolume fractionExtrasynaptic receptorsMonoamine neurotransmitterchemistryReceptor mosaicsForebrainNoradrenalineLocus coeruleusBrain uncoupling protein-2Neurology (clinical)NeuronNerve NetMicrodensitometry5-Hydroxytryptamine Amygdala Brain function Brain uncoupling protein-2 Catecholamines CA turnover Clearance DiffusionNeuroscienceDorsal raphe
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Blood pressure changes after automatic and fixed CPAP in obstructive sleep apnea. Relationship with nocturnal sympathetic activity.

2011

Treatment of obstructive sleep apnea (OSA) by continuous positive airway pressure (CPAP) usually causes a reduction in blood pressure (BP), but several factors may interfere with its effects. In addition, although a high sympathetic activity is considered a major contributor to increased BP in OSA, a relationship between changes in BP and in sympathetic nervous system activity after OSA treatment is uncertain. This study was undertaken to assess if, in OSA subjects under no pharmacologic treatment, treatment by CPAP applied at variable levels by an automatic device (APAP) may be followed by a BP reduction, and if that treatment is associated with parallel changes in BP and catecholamine exc…

AdultMaleSympathetic nervous systemSympathetic Nervous SystemAmbulatory blood pressurePhysiologymedicine.medical_treatmentambulatory blood pressure monitoring catecholaminesBlood PressureSettore MED/10 - Malattie Dell'Apparato RespiratorioNorepinephrineCatecholaminesInternal MedicinemedicineHumansContinuous positive airway pressureWakefulnessSleep Apnea ObstructiveContinuous Positive Airway Pressurebusiness.industrySleep apneaGeneral MedicineBlood Pressure Monitoring AmbulatoryMiddle Agedmedicine.diseaseCircadian RhythmNormetanephrinenervous system diseasesrespiratory tract diseasesObstructive sleep apneamedicine.anatomical_structureBlood pressureAnesthesiaAmbulatoryCatecholamineSleepbusinessmedicine.drug
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