title: Platelet activation and analysis of organelles in migraineurs.
abstract: We used transmission electron microscopy to investigate selected aspects of the platelet response (surface activation as well as aggregation) and quantify cytoplasmic organelles within the cytoplasm of platelets obtained from both healthy control women and women diagnosed as having either common or classic migraine. Comparisons between controls and migraineurs showed no differences for: (1) the number of circulating platelets, (2) degree of surface activation, (3) amount of aggregate formation or (4) percent of hyperactive platelet populations. In contrast, platelets of migraine sufferers uniformly contained a significantly greater number of dense bodies compared to control platelets. Although we did not find functional abnormalities for the platelets obtained from migraineurs, we did demonstrate that they were altered structurally.
authors.forename: J M
authors.initials: JM
authors.lastname: Riddle
authors.forename: G
authors.initials: G
authors.lastname: D'Andrea
authors.forename: K M
authors.initials: KM
authors.lastname: Welch
authors.forename: R
authors.initials: R
authors.lastname: Joseph
authors.forename: H H
authors.initials: HH
authors.lastname: McElroy
authors.forename: S
authors.initials: S
authors.lastname: Grunfeld
authors.forename: T G
authors.initials: TG
authors.lastname: Christopherson
mesh_terms: D000328:Adult; D001792:Blood Platelets / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D008881:Migraine Disorders / Q000097:blood / Q000473:pathology*; D015388:Organelles / Q000648:ultrastructure*; D010973:Platelet Adhesiveness; D010974:Platelet Aggregation; D010976:Platelet Count