WebMay 4, 2024 · Collectively, thrombin induces myometrial contractions by two mechanisms, including direct activation of myosin and indirect increases in prostaglandin synthesis. The results suggest a therapeutic potential of progesterone for preterm labor complicated by intrauterine bleeding. Publication types Video-Audio Media MeSH terms WebJul 3, 2012 · Myometrial cells behave as a functional syncytium, being electrically coupled via specialised regions of contact known as gap junctions/nexi. The combination of the above factors allows strong, coordinated myometrial contraction. Excitation of smooth muscle depends on alteration in membrane potential. Myometrial cells must be …
Progesterone receptor isoform B regulates the Oxtr-Plcl2-Trpc3 ... - PNAS
WebSep 23, 2024 · Here, the application of a modified organ bath to measure ex vivo contractions of small strips of human uterine smooth muscle (myometrium) is described, as well as protocols to study the effect of oxytocin and uterine relaxants on contraction. Key words Human myometrium Oxytocin Organ bath Transducer Contraction Smooth muscle … WebNoradrenergic contraction induced by transmural stimulation was significantly decreased by yohimbine (10-100 nM) but not by prazosin (1 microM). 5. The swine myometrium contained both alpha-1 (13%) and alpha-2 (87%) adrenoceptors. The distribution of alpha-adrenoceptors was muscle layer-specific, i.e. the number of both types of adrenoceptors ... getting around activation lock on ipad
Importance of transient myometrial contractions in diagnosis of ...
WebMyometrial biopsies were collected from normal-weight women undergoing elective Caesarean section delivery, between 38 and 40 weeks of gestation, for cephalopelvic disproportion, before labour onset. Pre-pregnancy body mass index for the patients was between 18.5 and 24.9 kg/m 2. WebJan 20, 2012 · Focal myometrial (uterine) contractions occur in a substantial number of vaginal ultrasound examinations and can impede accurate cervical length measurement … WebJul 27, 2024 · Braxton Hicks contractions are physiological contractions of myometrium that occur in pregnancy. They are often sporadic and start by ~6 weeks. Radiographic … getting around a city