Search results for "Tocolytic agent"

showing 3 items of 3 documents

Is the beta3-adrenoceptor (ADRB3) a potential target for uterorelaxant drugs?

2007

International audience; The management of premature birth still remains unsatisfactory. Since the relative lack of efficiency and/or safety of current tocolytic agents have been highlighted, it is necessary to develop new uterorelaxant drugs deprived of important maternal and foetal side effects. Our work reported in this review focuses on a potential new target for tocolytic drugs, the beta3-adrenoceptor (ADRB3). This third type of ADRB is shown to be present and functional in human myometrium. We demonstrated that ADRB3 agonists are able to inhibit in-vitro spontaneous contractions of myometrial strips, via a cyclic AMP-mediated pathway. Furthermore, we established that ADRB3 is the predo…

Muscle RelaxationMESH : Receptors Adrenergic beta-3MESH : Adrenergic beta-AgonistsUterusAdrenergic beta-3 Receptor AgonistsMESH: Adrenergic beta-AgonistsPharmacologyUterine contractionUterine Contraction0302 clinical medicineMESH: PregnancyMESH : UterusPregnancyObstetrics and GynaecologyMedicineMESH : FemaleMESH: Obstetric Labor Premature[ SDV.MHEP.GEO ] Life Sciences [q-bio]/Human health and pathology/Gynecology and obstetricsreproductive and urinary physiology0303 health sciencesMESH : MyometriumMyometriumMESH : Obstetric Labor PrematureObstetrics and GynecologyAdrenergic beta-Agonists3. Good healthmedicine.anatomical_structureMuscle relaxation030220 oncology & carcinogenesisTocolyticMESH: Uterine ContractionMyometriumMESH: MyometriumMESH: UterusFemalemedicine.symptomTocolytic agentmedicine.medical_specialtyAdrenergic receptorAdrenergic beta-3 Receptor Agonists[SDV.MHEP.GEO]Life Sciences [q-bio]/Human health and pathology/Gynecology and obstetricsMESH : Muscle Relaxation03 medical and health sciencesObstetric Labor PrematureInternal medicineHumans030304 developmental biologyMESH: Humansbusiness.industryMESH : HumansUterus[SDV.MHEP.GEO] Life Sciences [q-bio]/Human health and pathology/Gynecology and obstetricsMESH : PregnancyEndocrinologyProceedingsReceptors Adrenergic beta-3MESH: Muscle RelaxationbusinessMESH: Receptors Adrenergic beta-3MESH: FemaleMESH : Uterine Contraction
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Spontaneous labour at term is associated with fetal monocyte activation.

1999

SUMMARYThe aetiology of both term and preterm labour remains incompletely understood. Maternal infectious diseases as well as intra-uterine infections were shown to be a well established cause of uncontrollable preterm delivery, indicating that inflammatory reactions, regulated by maternal immunecompetent cells, are implicated in labour-promoting mechanisms. To investigate the possibility that the activation of the fetal immune system may be involved in labour induction, we examined cytokine production patterns of different cord blood cell populations obtained from neonates after spontaneous onset of normal term labour and vaginal delivery (n = 25), vaginal delivery but induced term labour …

medicine.medical_treatmentT cellImmunologyInflammationGestational AgeBetamethasoneMonocytesMagnesium SulfateImmune systemFetusObstetric Labor PrematurePregnancymedicineImmunology and AllergyHumansLabor InducedLungreproductive and urinary physiologyFenoterolFetusLabor Obstetricbusiness.industryVaginal deliveryCesarean SectionInterleukin-6MonocyteInfant NewbornDelivery ObstetricFetal Bloodmedicine.anatomical_structureCytokineTocolytic AgentsCord bloodImmunologyFemaleOriginal Articlemedicine.symptombusinessClinical and experimental immunology
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Pharmacological and biochemical study on the effects of selective phosphodiesterase inhibitors on human term myometrium

1999

This study was aimed at evaluating the in vitro effects of phosphodiesterase inhibitors and beta2-adrenoceptor agonists on spontaneous contractions of human term myometrium. Rolipram, RP 73401 (3-cyclopentyloxy-N-(3,5(-dichloro-4-pyridil)-4-methoxybenzamide) and Ro 20-1724 (1-4-(3-butoxy-4-methoxybenzyl)-2-imidozolidinone) (phosphodiesterase 4 inhibitors) inhibited spontaneous myometrial contractions (Emax approximately 100%; pD2 of 6.80+/-0.28, 6.84+/-0.32 and 6.31+/-0.03, respectively). Salbutamol and formoterol were less effective (Emax=40+/-6% and 35+/-12%, respectively) than phosphodiesterase 4 inhibitors to reduce myometrial contractility. Inhibitors of phosphodiesterase 3 (milrinone …

Nitroprussidemedicine.medical_specialtyTocolytic agentPhosphodiesterase InhibitorsSiguazodanPhosphodiesterase 3In Vitro Techniqueschemistry.chemical_compoundPregnancyInternal medicinemedicineHumansDrug InteractionsRolipramPharmacologyChromatographyDose-Response Relationship DrugPhosphoric Diester HydrolasesPhosphodiesteraseGeneral MedicineAdrenergic beta-AgonistsIsoenzymesEndocrinologychemistryMyometriumMilrinoneFemaleSodium nitroprussideZaprinastmedicine.drugNaunyn-Schmiedeberg's Archives of Pharmacology
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