Key result
Thromboxane A2 analogue U-46619 potentiates submaximal Ca2+-activated force in umbilical artery smooth muscle via G proteins.
Why the study?
Does the thromboxane A2 analogue U-46619 potentiate calcium-activated force in permeabilized human umbilical artery smooth muscle?
Does the thromboxane A2 analogue U-46619 potentiate calcium-activated force in permeabilized human umbilical artery smooth muscle?
The thromboxane A2 analogue U-46619 potentiates calcium sensitivity of tension production in human umbilical artery smooth muscle via a G protein-mediated mechanism.
No takes yet. Share an insight, caveat, or question.
Does not yet inform clinical management of umbilical tone; leaves open G protein pathways as targets for vascular research.
Crichton et al. (1993) studied this question. U-46619 was evaluated on Ca2+ sensitivity of smooth muscle contractile proteins (submaximal Ca2+-activated force). The thromboxane A2 analogue U-46619 potentiated submaximal Ca2+-activated force in human umbilical artery smooth muscle, an effect mediated via a G protein.
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