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Headache. 2004 Apr;44(4):311-7.

Familial migraine with aura: association study with 5-HT1B/1D, 5-HT2C, and hSERT polymorphisms.

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  • 1Department of Applied and Experimental Pharmacology, University of Pavia, Italy.

Abstract

BACKGROUND:

The serotonergic system has a significant role in the pathophysiology and pharmacology of migraine.

OBJECTIVE:

To study the association between the occurrence of migraine with aura and 5-HT(1B/1D) and 5-HT(2C) receptor gene and the human serotonin transporter (hSERT) gene polymorphisms in 18 unrelated families with multiple affected members.

METHOD:

Two polymorphisms in the 5-HT(1B/1D) receptor gene and one polymorphism in the 5-HT(2C) receptor gene were studied by restriction fragment length polymorphism analysis. Allelic variation of the hSERT, with 9, 10, and 12 copies of a "repetitive element," was studied by polymerase chain reaction amplification of the variable number tandem repeat region.

RESULTS:

Allelic distribution of 5-HT(1B/1D) and 5-HT(2C) receptor gene polymorphisms in affected patients did not differ in either of the control groups (unaffected relatives or unrelated healthy individuals). A trend toward a significant effect of the 12-repeat hSERT allele as a risk factor for migraine with aura versus unrelated controls was observed.

CONCLUSION:

Our data do not support the involvement of 5-HT(1B/1D) and 5-HT(2C) receptor gene polymorphisms in migraine with aura, yet do suggest a possible role for a locus at or near the hSERT gene in the susceptibility to migraine with aura.

PMID:
15109354
[PubMed - indexed for MEDLINE]
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