Association between migraine and ACE gene (insertion/deletion) polymorphism: the BioBIM study

Area of Science:

• Genetics
• Neurology
• Pharmacogenomics

Background:

• Migraine is a complex neurological disorder with a significant genetic component.
• The angiotensin-converting enzyme (ACE) gene and its insertion/deletion (I/D) polymorphism have been implicated in various cardiovascular and neurological conditions.

Purpose of the Study:

• To investigate the association between the ACE I/D polymorphism and migraine.
• To explore potential links between ACE genetic variants and clinical features of migraine.

Main Methods:

• A case-control study involving 502 Caucasian migraine patients and 323 healthy controls.
• Genotyping of the ACE I/D variant was performed.
• Associations with sociodemographic and clinical features were analyzed.

Main Results:

• The ACE insertion/insertion (I/I) genotype was significantly associated with lower use of pharmacological prophylaxis in migraine patients with aura and chronic migraine.
• The ACE I/I genotype was more prevalent in migraine patients with aura who had a negative family history of migraine.

Conclusions:

• The ACE I/D polymorphism does not appear to be a direct risk factor for developing migraine.
• The ACE I/I genotype may influence migraine phenotype, correlating with reduced prophylactic treatment use in specific patient subgroups (migraine with aura, chronic migraine).