title: Genetic factors in cluster headache.
abstract: Genetic factors are likely to play a role in cluster headache but are not simply accounted for. A small number of family studies have illustrated the role of genetics, and a few inconclusive studies assessed candidate genes for cluster headache. These clinical genetic studies are reviewed and the author's results from a large database of cluster headache patients are reported. The importance of genetic factors in cluster headache pathophysiology and comment on difficulties in genetic research of cluster headache are discussed.
authors.affiliation: Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands. javanvliet@lumc.nl
authors.forename: Jorine A van
authors.initials: JA
authors.lastname: Vliet
authors.forename: Michel D
authors.initials: MD
authors.lastname: Ferrari
authors.forename: Joost
authors.initials: J
authors.lastname: Haan