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[Adenine nucleotides in migraine]
R Leira1, J Castillo, F Martínez
1Servicio de Neurología, Hospital General de Galicia Clínico Universitario, Santiago de Compostela.
Neurologia (Barcelona, Spain)
|June 1, 1991
Summary
Migraine patients show reduced plasma AMP levels during painful episodes, suggesting abnormal platelet dense granule release. This finding supports a hyposecretion hypothesis in migraine pathophysiology.
Area of Science:
- Neuroscience
- Hematology
- Biochemistry
Background:
- Migraine is linked to abnormal platelet activation.
- Platelets release adenine nucleotides (AMP, ADP, ATP) from dense granules upon activation.
- Previous studies indicate elevated platelet proteins (BTG, PF4) in migraineurs.
Purpose of the Study:
- To investigate plasma adenine nucleotide levels (AMP, ADP, ATP) in migraine patients during asymptomatic and painful phases.
- To compare these levels with a control group.
- To explore the role of platelet dense granule secretion in migraine.
Main Methods:
- Blood samples were collected from 50 migraine patients (common and classical types) and a control group.
- Plasma levels of adenosine monophosphate (AMP), adenosine diphosphate (ADP), and adenosine triphosphate (ATP) were measured.
- Measurements were taken during both asymptomatic and painful migraine episodes.
Main Results:
- A significant reduction in plasma AMP levels was observed during painful migraine phases compared to asymptomatic phases.
- No significant differences in plasma ADP and ATP levels were found between migraine patients and controls.
- Plasma ADP and ATP levels did not differ significantly between asymptomatic and painful phases in migraine patients.
Conclusions:
- The findings suggest a hyposecretion of platelet dense granules in migraine patients.
- Reduced AMP levels during painful episodes may indicate altered platelet function in migraine.
- This study supports a potential role for platelet dense granule dysfunction in migraine pathophysiology.