Uterine hypercontractility is considered to be an important factor in primary dysmenorrhea. A survey is given on possible mechanisms controlling the cytoplasmic concentration of free calcium and thereby contractile activity in the myometria…
From 22 women undergoing hysterectomy at various stages of the menstrual cycle, strip preparations were dissected from the outer, longitudinal and the inner, circular smooth muscle layers of the ampullary-isthmic junction (AIJ). The strips …
The effects of the calcium antagonist nifedipine on uterine activity and lower abdominal pain were studied during the first menstrual day in 10 women with severe primary dysmenorrhoea. Intrauterine pressure was recorded at three different l…
The effects of the calcium antagonist Nifedipine were investigated on isolated human myometrium and on uterine activity in healthy women during their first menstrual days. Nifedipine (0.01-1.0 microgram/ml) had a concentration-related inhib…
The effects of the selective beta2-receptor stimulator terbutaline (0-25 to 0-5 mg given intravenously) on myometrial activity, local uterine blood flow, and lower abdominal pain were examined during the first day of menstruation in 11 wome…