Sorensen, "Reduced placental oxygenation during subclinical uterine contractions
as assessed by BOLD MRI," Placenta, vol.
Acetylcholine evoked uterine contractions
in a concentration (0.1-3[micro]M)-dependent manner in IC group (Figure 1).
We imposed a minimum length of 2 minutes (480 samples) for each segment (length chosen from the influence of uterine contractions
over the FHR signal) .
Monitoring uterine contractions
is commonly used to estimate the time of an approaching labour.
OCPs suppress ovulation and thin the endometrial lining which reduces menstrual fluid volume along with the amount of PG produced, thus reducing the pain associated with uterine contractions
Ach and PGF2[alpha] produce uterine contraction
by activation of the muscarinic (M3)-receptor and the prostaglandin FP receptor on the myometrium, respectively (Myatt and Lye 2004; Pappano 2007).
 The 3rd stage of labour in this group was characterized by prompt uterine contractions
with rapid expulsion of placenta.
Symptoms of preterm birth were defined as the occurrence of uterine contractions
, cervical effacement, dilatation, or change in consistency.
Pulse rate, electrocardiogram, systolic and diastolic BP, respiratory rate, peripheral arterial haemoglobin oxygen saturation, uterine contraction
, blood loss & baby Apgar score were monitored.
The human uterus contains both oxytocin and vasopressin receptors; stimulation of either receptor causes uterine contraction
. Vasopressin receptor activation also causes vasoconstriction and platelet activation.
Misoprostol was discontinued with cervical dilatation of 2.5 cm or regular uterine contraction
and for dinoprostone second dose was repeated after six hours to achieve regular uterine contraction
The findings suggest that foetuses may respond to stress by uterine contraction