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Platelet changes in classic migraine
G De Matteis1, M G Tozzi-Ciancarelli, P Calisse
1Centro Cefalee, Università dell'Aquila.
Abstract:
We investigated some ultrastructural aspects of platelet activity in patients with classic migraine during an attack-free period. We focused on the production of malondialdehyde (MDA), the intracellular concentration of Ca++ and the membrane phospholipid structure using a DPH (1,6 diphenyl-1,3,5 hexatriene) fluorescent probe. Our study comprised 20 patients with classic migraine and 5 healthy controls, from whom 10 cc samples of blood were collected in test tubes containing sodium citrate (1/9 cc). We found no significant differences in MDA production between migraineurs and controls either before or after stimulation with thrombin. The same applies to the concentration of intracellular Ca++ (Ca++i). The membrane lipid composition assessed by DPH fluorescent probe was normal both in migraineurs and in controls. Our findings suggest no intrinsic activation of platelet aggregation.
Insights
This study found no significant differences in platelet activity, malondialdehyde production, or intracellular calcium levels between migraine patients and healthy individuals during attack-free periods, suggesting no intrinsic platelet activation in migraine.
Area of Science:
- Neuroscience
- Hematology
- Biochemistry
Background:
- Migraine is a complex neurological disorder.
- Platelet activation is a potential factor in migraine pathophysiology.
- Previous research has yielded conflicting results regarding platelet function in migraineurs.
Purpose of the Study:
- To investigate ultrastructural platelet activity in patients with classic migraine during an attack-free period.
- To assess malondialdehyde production, intracellular Ca++ concentration, and membrane phospholipid structure in migraineurs.
Main Methods:
- Blood samples from 20 classic migraine patients and 5 healthy controls were analyzed.
- Malondialdehyde (MDA) production was measured.
- Intracellular calcium (Ca++i) concentration was assessed.
- Membrane phospholipid structure was evaluated using a DPH (1,6 diphenyl-1,3,5 hexatriene) fluorescent probe.
Main Results:
- No significant differences in MDA production were observed between migraineurs and controls, even after thrombin stimulation.
- Intracellular Ca++ concentration (Ca++i) showed no significant variations between the groups.
- Membrane lipid composition, assessed via DPH probe, was normal in both migraineurs and controls.
Conclusions:
- The study suggests no intrinsic activation of platelet aggregation in patients with classic migraine during interictal periods.
- Findings indicate that platelet function, as measured by MDA, Ca++, and membrane structure, is not inherently altered in migraineurs outside of attacks.