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Bidirectional two-sample Mendelian randomization analysis identifies causal associations between migraine and five
Wen-Wei Li1, Jia-Xin Zhang1, Jia Wang1
1Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
Frontiers in Neurology
|August 20, 2024
Summary
This study investigated the causal link between migraine and psychiatric disorders. Major depressive disorder increases migraine risk, while bipolar disorder may decrease it, suggesting potential for integrated prevention strategies.
Area of Science:
- Neuroscience
- Psychiatry
- Genetics
Background:
- The relationship between migraine and psychiatric disorders like PTSD, MDD, AN, BIP, and SCZ is debated.
- Previous research has yielded controversial findings regarding these associations.
Purpose of the Study:
- To investigate potential causal associations between migraine and five major psychiatric disorders using Mendelian randomization.
- To clarify the complex interplay between headache disorders and mental health conditions.
Main Methods:
- A bidirectional 2-sample Mendelian randomization (MR) analysis was conducted.
- Genetic data from the Psychiatric Genomics Consortium (PGC) and FinnGen dataset were utilized.
- Multiple MR methods including IVW, weighted median, and MR-PRESSO were employed.
Main Results:
- Major depressive disorder (MDD) showed a significant association with an increased risk of migraine without aura.
- Bipolar disorder (BIP) was linked to a reduced risk of migraine without aura.
- Migraine with aura was associated with an increased risk of BIP, and migraine without aura with an increased risk of anorexia nervosa (AN).
Conclusions:
- The study provides evidence supporting a potential causal relationship between migraine and specific psychiatric disorders.
- Findings may inform the development of integrated prevention and treatment strategies for both migraine and associated mental health conditions.
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