D'Andrea G, Cananzi AR, Perini F, Alecci M, Zamberlan F, Hasselmark L, Welch KM. Decreased collagen-induced platelet aggregation and increased platelet arginine levels in migraine: a possible link with the NO pathway.
Cephalalgia 1994;
14:352-6. [PMID:
7828194 DOI:
10.1046/j.1468-2982.1994.1405352.x]
[Citation(s) in RCA: 30] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We studied whole blood platelet aggregation induced by collagen, platelet activating factor (PAF) and measured basal platelet L-arginine (L-arg) levels, as an indirect index of the nitric oxide (NO) pathway in migraine. Migraine, both with and without aura groups, showed a reduced aggregation to collagen, but not to PAF, compared with control subjects. Platelet L-arg levels were significantly increased in migraine with aura sufferers, whereas the plasma levels were in the same range in migraineurs and controls. Platelet hyperesponsiveness to collagen stimulation in migraine may be linked to an increased availability of the amino acid precursor and an abnormal NO synthesis.
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