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Isolation of Primary Patient-specific Aortic Smooth Muscle Cells and Semiquantitative Real-time Contraction Measurements In Vitro
Published on: February 15, 2022
Vascular smooth muscle cell dysfunction in patients with migraine
R Napoli1, V Guardasole, E Zarra
1Department of Internal Medicine, University Federico II School of Medicine, Naples, Italy. napoli@unina.it
Neurology
|June 17, 2009
Summary
Migraine patients exhibit impaired vascular smooth muscle cell function, specifically reduced cyclic guanosine monophosphate (cGMP) response to nitric oxide (NO). This dysfunction may explain the increased cardiovascular disease risk associated with migraine.
Area of Science:
- Cardiovascular Science
- Neurology
- Vascular Biology
Background:
- Migraine is linked to a higher risk of cardiovascular disease, but the underlying mechanisms remain unclear.
- Understanding vascular cell activity in migraine is crucial for elucidating this association.
Purpose of the Study:
- To investigate the function of endothelial cells and vascular smooth muscle cells (VSMCs) in individuals with migraine.
- To explore the role of nitric oxide (NO) and cyclic guanosine monophosphate (cGMP) pathways in migraine-associated vascular dysfunction.
Main Methods:
- A case-control study involving 12 migraine patients without aura and 12 matched healthy controls.
- Forearm blood flow (FBF) was measured using plethysmography during vasoactive agent infusions.
- Quantified forearm production of nitric oxide (NO) and cyclic guanosine monophosphate (cGMP).
Main Results:
- Patients with migraine showed significantly reduced endothelium-dependent vasodilation in response to acetylcholine (ACh).
- Vascular smooth muscle cell (VSMC) responsiveness to nitroprusside was also impaired in migraine patients.
- While nitric oxide (NO) release was similar, cyclic guanosine monophosphate (cGMP) release from VSMCs was markedly reduced in migraine patients compared to controls.
Conclusions:
- Migraine patients display impaired vascular smooth muscle cell (VSMC) function.
- This dysfunction is characterized by an inadequate cyclic guanosine monophosphate (cGMP) and hemodynamic response to nitric oxide (NO).
- These findings suggest a potential mechanism linking migraine to cardiovascular disease risk.
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