Search results for "AT2 receptor"

showing 4 items of 4 documents

Angiotensin II type II receptors and colonic dysmotility in 2,4-dinitrofluorobenzenesulfonic acid-induced colitis in rats

2016

Background: Angiotensin II (Ang II), the main peptide of the renin-angiotensin system (RAS), has been suggested to be involved in inflammatory bowel diseases. Since RAS has emerged as gut motility regulator, and dysmotility is associated with intestinal inflammation, our objective was to investigate in rat 2,4-dinitrobenzenesulfonic acid (DNBS)-induced colitis the functionality of RAS and its contribution to colonic motor alterations. Methods: The effects of Ang II on the longitudinal colonic muscular contractility of control and DNBS-treated rats were characterized in vitro. Transcripts encoding for Ang II receptors were investigated by RT-PCR. Key Results: Inflamed preparations showed a l…

0301 basic medicineMalemedicine.medical_specialtyAngiotensin receptormedicine.drug_classColonPhysiologyInflammationAT2 receptorReceptor Angiotensin Type 2Bowel inflammationEndocrine and Autonomic SystemContractilityRenin-Angiotensin System03 medical and health sciences0302 clinical medicineInternal medicinemedicineAnimalsRats WistarReceptorAngiotensin II receptor type 1Endocrine and Autonomic SystemsChemistryAT1 receptorAngiotensin IIMuscle contractilityGastroenterologyMuscle SmoothNitric oxideReceptor antagonistColitisAngiotensin II030104 developmental biologyEndocrinologyLosartancardiovascular system030211 gastroenterology & hepatologyDinitrofluorobenzenemedicine.symptomGastrointestinal Motilityhormones hormone substitutes and hormone antagonistsmedicine.drugMuscle Contraction
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PD123319, angiotensin II type II receptor antagonist, inhibits oxidative stress and inflammation in 2, 4-dinitrobenzene sulfonic acid-induced colitis…

2019

Angiotensin II, the main effector of renin angiotensin system, plays an important role in the inflammatory process and most of its effects are mediated through the AT1 receptor activation. However, the knowledge about the AT2 receptor involvement in this process is still evolving. We previously found that in an experimental model of colitis, AT2 receptor activation can contribute to the impairment of the muscle contractility in vitro in the course of inflammation. Here, we investigated the potential alleviating effects of the in vivo treatment of PD123319 (1-[[4-(Dimethylamino)-3-methylphenyl]methyl]-5-(diphenylacetyl)-4,5,6,7- tetrahydro-1H-imidazo[4,5-c]pyridine-6-carboxylic acid ditriflu…

Male0301 basic medicineColonPyridinesmedicine.drug_classImmunologyAngiotensin II Type 2 Receptor BlockersPharmacologyAT2 receptorReceptor Angiotensin Type 2Inflammatory bowel diseaseInflammatory bowel diseaseProinflammatory cytokineContractility03 medical and health sciencesAngiotensin0302 clinical medicinemedicineAnimalsPharmacology (medical)Rats WistarColitisReceptorPharmacologyInflammationAngiotensin II receptor type 1ChemistryAngiotensin IIImidazolesColitismedicine.diseaseReceptor antagonistAngiotensin IIRatsDinitrobenzenesOxidative Stress030104 developmental biology030217 neurology & neurosurgery
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Interaction between Angiotensin Type 1, Type 2, and Mas Receptors to Regulate Adult Neurogenesis in the Brain Ventricular–Subventricular Zone

2019

The renin&ndash

MaleAgingproliferationNeurogenesisProliferationSubventricular zoneventricular–subventricular zoneBiologyModels BiologicalReceptor Angiotensin Type 2ArticleReceptor Angiotensin Type 1MiceNeuroblastNeural Stem CellsLateral VentriclesmedicineneurospheresAT1 receptorsAnimalsReceptorNeural stem cellsMice KnockoutAngiotensin II receptor type 1Cell growthAngiotensin IINeurogenesisagingAge FactorsGeneral MedicineImmunohistochemistryNeural stem cellOlfactory bulbCell biologyRatsVentricular–subventricular zonemedicine.anatomical_structurenervous systemAT2 receptorscardiovascular systemNeurosphereshormones hormone substitutes and hormone antagonistscirculatory and respiratory physiologyProtein BindingCells
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Angiotensin II contractile effects in mouse colon: role for pre- and post-junctional AT1A receptors

2013

Aim This study investigates whether a local renin–angiotensin system (RAS) exists in mouse colon and whether angiotensin II (Ang II) may play a role in the regulation of the contractile activity. Methods Isometric recordings were performed in vitro on the longitudinal muscle of mouse proximal and distal colon. Transcripts encoding for RAS components were investigated by RT-PCR. Results Ang II caused, in both preparations, a concentration-dependent contractile effect, antagonized by losartan, AT1 receptor antagonist, but not by PD123319, AT2 receptor antagonist. The combination of losartan plus PD123319 caused no change on the Ang II-induced contraction than losartan alone. Tetrodotoxin, neu…

Malemedicine.medical_specialtyColonPhysiologymedicine.drug_classMuscarinic AntagonistsBiologyReceptor Angiotensin Type 1Renin-Angiotensin SystemMicechemistry.chemical_compoundOrgan Culture TechniquesInternal medicineMuscarinic acetylcholine receptormedicineAnimalsReceptorAngiotensin II receptor type 1Reverse Transcriptase Polymerase Chain ReactionAngiotensin IIAntagonistMuscle Smoothangiotensin II AT1 receptors AT2 receptors enteric neurones mouse colon muscle contraction.Receptor antagonistAngiotensin IIElectrophysiologyMice Inbred C57BLEndocrinologyLosartanchemistryHexamethoniumhormones hormone substitutes and hormone antagonistsMuscle Contractionmedicine.drug
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