Search results for " nicotinic receptors"

showing 3 items of 3 documents

Interactions between cholinergic and fibroblast growth factor receptors in brain trophism and plasticity

2014

Acetylcholine, acting on both nicotinic receptors (nAChRs) and muscarinic receptors (mAChRs), plays a role in the regulation of synaptic plasticity, being involved in the regulation of cellular processes and cognitive functions, such as learning, memory and attention. Recently, G protein coupled receptors (GPCRs), including mAChRs, have been reported to transactivate tyrosine-kinase receptors (RTK), such as epidermal growth factor receptor (EGFR), and initiate their intracellular signaling. In this minireview we have first analysed the RTK transactivation mechanisms, involving cholinergic receptors, and thereafter the interplay between AChR and neurotrophic factor systems built up by FGF2 a…

Transcriptional Activationmedicine.medical_specialtyClass C GPCRG protein coupled receptorBiologyCholinergic AgonistsBiochemistrySynaptic plasticityTransactivationNicotinic receptorNeurotrophic factorsInternal medicinemedicineAnimalsHumansReceptors CholinergicProtein Interaction MapsReceptorMolecular BiologyG protein-coupled receptorTransactivationNeuronal PlasticityFibroblast growth factor receptor 1Muscarinic receptorBrainReceptor Protein-Tyrosine KinasesCell BiologyGeneral MedicineReceptors Fibroblast Growth FactorErbB ReceptorsEndocrinologyFGFR1Fibroblast growth factor receptorFGFR1; G protein coupled receptor; Muscarinic receptors; Nicotinic receptors; Receptor-receptor interaction; Synaptic plasticity; Transactivation; Tyrosine-kinase receptorsSignal transductionTyrosine-kinase receptorsNeuroscienceReceptor-receptor interactionSignal Transduction
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Involvement of cholinergic nicotinic receptors in the menthol-induced gastric relaxation.

2014

We have previously demonstrated that menthol reduces murine gastric tone in part through a neural mechanism, involving adrenergic pathways and reduction of ongoing release of acetylcholine from enteric nerves. In the present study we aimed to verify whether the gastric relaxation to menthol may be triggered by interaction with neural receptors or ionic channels proteins, such as transient receptor potential (TRP)-melastatin8 (TRPM8), TRP-ankyrin 1 (TRPA1), 5-hydroxytriptamine 3 (5-HT3) receptor or cholinergic nicotinic receptors. Spontaneous mechanical activity was detected in vitro as changes in intraluminal pressure from isolated mouse stomach. Menthol (0.3-30 mM) induced gastric relaxati…

AgonistMalemedicine.medical_specialtySerotoninmedicine.drug_classDimethylphenylpiperaziniumMuscle RelaxationTRPM Cation ChannelsPharmacologyReceptors NicotinicSettore BIO/09 - Fisiologiachemistry.chemical_compoundMiceGanglion type nicotinic receptorTransient Receptor Potential ChannelsIsothiocyanatesInternal medicinemedicineTRPM8AnimalsSerotonin 5-HT3 Receptor AntagonistsRNA MessengerTRPA1 Cation ChannelPharmacologyStomachmenthol gastric relaxation TRPM8 TRPA1 nicotinic receptorsReceptor antagonistOndansetronMice Inbred C57BLMentholEndocrinologyNicotinic agonistchemistryPurinesHexamethoniumAcetanilidesAlpha-4 beta-2 nicotinic receptorGastrointestinal Motilitymedicine.drugEuropean journal of pharmacology
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The nACHR4 594C/T polymorphism in Alzheimer disease

2006

Alzheimer disease (AD) is the most common form of dementia with complex etiology and multifactorial origin. Although several neurochemical deficits have been described in AD patients, explanation of the nature of the cognitive disturbance is focused on the "cholinergic hypothesis." The neuronal nicotinic acetylcholine receptor (neuronal nAChR) belongs to the superfamily of ionic channel activated by ligand. This paper presents a population-based population association study, testing the hypothesis that variants of the nAChR gene confer genetic susceptibility to AD. The authors analyzed two cohorts constituted by 60 controls and 80 AD patients in which significant increase of 594T polymorphi…

MaleNEURONAL NICOTINIC RECEPTORSAgingPopulationReceptors NicotinicBiologyBioinformaticsCHOLINERGIC HYPOTHESISNeurochemicalGene FrequencyAlzheimer DiseasemedicineGenetic predispositionHumansDementiaGenetic Predisposition to DiseaseBRAINeducationCognitive deficitAgedAged 80 and overGeneticseducation.field_of_studyPolymorphism GeneticMiddle Agedmedicine.diseaseGENENicotinic acetylcholine receptorCholinergicFemaleGeriatrics and Gerontologymedicine.symptomAlzheimer's disease
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