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Intracellular Calcium Response to Oxytocin in Uterine Smooth Muscle Cells From Patients With Uterine Atony
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(Anesth Analg. 2025;140(2):491–493. DOI: 10.1213/ANE.0000000000007240)
Postpartum hemorrhage (PPH) is a leading cause of maternal death globally, with uterine atony being responsible for about 80% of these cases. In the United States, it is the second-highest pregnancy-related cause of death. Uterine atony occurs when the uterus fails to contract properly after the delivery of the placenta, and it remains a challenge to study due to the lack of effective in vivo or in vitro models. Cytosolic calcium (Ca2+) plays a critical role in muscle contraction, including uterine smooth muscle, and its response to stimuli such as oxytocin is central to understanding uterine atony. This study aimed to investigate whether oxytocin-induced calcium changes in uterine smooth muscle cells (USMCs) could provide insight into uterine atony.
Ovid Technologies (Wolters Kluwer Health)
Title: Intracellular Calcium Response to Oxytocin in Uterine Smooth Muscle Cells From Patients With Uterine Atony
Description:
(Anesth Analg.
2025;140(2):491–493.
DOI: 10.
1213/ANE.
0000000000007240)
Postpartum hemorrhage (PPH) is a leading cause of maternal death globally, with uterine atony being responsible for about 80% of these cases.
In the United States, it is the second-highest pregnancy-related cause of death.
Uterine atony occurs when the uterus fails to contract properly after the delivery of the placenta, and it remains a challenge to study due to the lack of effective in vivo or in vitro models.
Cytosolic calcium (Ca2+) plays a critical role in muscle contraction, including uterine smooth muscle, and its response to stimuli such as oxytocin is central to understanding uterine atony.
This study aimed to investigate whether oxytocin-induced calcium changes in uterine smooth muscle cells (USMCs) could provide insight into uterine atony.
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