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Published on: August 11, 2021
Polygenic risk score: use in migraine research
Mona Ameri Chalmer1, Ann-Louise Esserlind2, Jes Olesen2
1Department of Neurology, Danish Headache Center, Copenhagen University Hospital, DK-2600, Glostrup, Denmark. mona.ameri.chalmer@regionh.dk.
Polygenic Risk Score (PRS) can capture genetic risk for migraine beyond significant Genome-Wide Association Study findings. PRS offers insights into migraine comorbidities and personalized treatment strategies, including pharmacogenetics.
Area of Science:
- Genetics
- Neuroscience
- Pharmacology
Background:
- Genome-Wide Association Studies (GWAS) identify genetic variants for complex diseases like migraine.
- Achieving stringent significance levels (5 × 10⁻⁸) in GWAS is challenging due to multiple testing.
- Identified GWAS variants explain only a small portion of migraine's genetic risk; many risk variants remain undetected.
Purpose of the Study:
- To explore the utility of Polygenic Risk Score (PRS) in migraine research.
- To leverage large-scale GWAS data for enhanced genetic risk assessment in migraine.
- To investigate the potential of PRS in understanding migraine comorbidities and treatment responses.
Main Methods:
- Construction and application of Polygenic Risk Score (PRS) using existing migraine GWAS data.
- Utilizing PRS to analyze genetic correlations between migraine and comorbid conditions.
- Assessing PRS for predicting disease status and endophenotypes in neuropsychiatric disorders.
Main Results:
- Polygenic Risk Score (PRS) has demonstrated success in neuropsychiatric disorder studies.
- PRS can predict disease status in case-control studies.
- PRS reveals shared genetic correlations between comorbid diseases and specific endophenotypes.
Conclusions:
- Polygenic Risk Score (PRS) enables investigation of shared genetic risk between migraine and comorbidities.
- PRS may facilitate personalized migraine treatment by identifying drug responders.
- PRS can assess pharmacogenetic effects and predict the efficacy of novel migraine therapies like CGRP inhibitors.
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