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Vascular Smooth Muscle Tone (VSMT)
- Target
- VSMT
- Molecular classification
- Cellular Process, Physiological Process
01
Overview
Vascular smooth muscle tone refers to the continuous and regulated state of partial contraction maintained by vascular smooth muscle cells (VSMCs) in the walls of blood vessels, particularly arteries and arterioles. This tone is crucial for controlling vessel diameter, blood flow distribution, and systemic blood pressure. It is a major determinant of arterial resistance and a key target for antihypertensive drugs.
- Other names
- Vascular ToneSmooth Muscle Tone (Vascular)VSM Tone
02
Mechanism of action
Modulation of vascular smooth muscle cell contraction/relaxation via calcium signaling, ion channel activity, and various signal transduction pathways.
03
Biological functions
Regulation of blood pressureRegulation of blood flowVascular resistanceVasoconstrictionVasodilation
04
Disease associations
HypertensionHypotensionShockAtherosclerosisRestenosisCardiovascular disease
05
Safety considerations
Excessive vasodilation leading to hypotensionExcessive vasoconstriction leading to hypertension and ischemiaDrug-induced changes in vascular toneOff-target effects of drugs on other smooth muscle tissues
06
Interacting drugs
Antihypertensive drugs (general)
6 more in the full profile.
07
Biomarkers
Blood pressure measurementsCirculating vasoconstrictor/vasodilator levels (e.g., Angiotensin II, Nitric Oxide)Vascular stiffness indices
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