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Two distinct neuroanatomical subtypes of migraine without aura revealed by heterogeneity through discriminative analysis

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Abstract

The neurobiological heterogeneity in migraine is poorly studied, resulting in conflicting neuroimaging findings. This study used a newly proposed method based on gray matter volumes (GMVs) to investigate objective neuroanatomical subtypes of migraine. Structural MRI and clinical measures of 31 migraine patients without aura and 33 matched healthy controls (HCs) were explored. Firstly, we investigated whether migraine patients exhibited higher interindividual variability than HCs in terms of GMVs. Then, heterogeneity through discriminative analysis (HYDRA) was applied to categorize migraine patients into distinct subtypes by regional volumetric measures of GMVs. Voxel-wise volume and clinical characteristics among different subtypes were also explored. Migraine patients without aura exhibited higher interindividual GMVs variability. Two distinct and reproducible neuroanatomical subtypes of migraine were revealed. These two subtypes exhibited opposite neuroanatomical aberrances compared to HCs. Subtype 1 showed widespread decreased GMVs, while Subtype 2 showed increased GMVs in limited regions. The total intracranial volume was significantly positively correlated with cognitive function in Subtype 2. Subtype 1 showed significantly longer illness duration and less cognitive scores compared to Subtype 2. The present study shows that migraine patients without aura have high structural heterogeneity and uncovers two distinct and robust neuroanatomical subtypes, which provide a possible explanation for conflicting neuroimaging findings.

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Data availability

The datasets generated and analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

We are grateful to all the participants in this study.

Funding

This study was supported by the Natural Science Foundation of China (81601467, 81871327, 62106229) and Medical Science and Technology Research Project of Henan Province (201701011, SBGJ202102103, SBGJ202101013).

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Authors and Affiliations

Authors

Contributions

Author contributions included conception and study design (HL, JC, and SH), data collection or acquisition (HL, RZ, and YZ), statistical analysis (HL, BZ), interpretation of results (HL, HH, YZ, and SH), drafting the manuscript work or revising it critically for important intellectual content (HL, RZ, JC, BZ, and SH) and approval of final version to be published and agreement to be accountable for the integrity and accuracy of all aspects of the work (All authors).

Corresponding author

Correspondence to Shaoqiang Han.

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Competing interests

The authors declare no competing interests.

Ethics statement

This study was approved by the Ethics Committee of the First Affiliated Hospital of Zhengzhou University. Written informed consents were obtained from all participants before experiment.

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The authors declare that they have no competing interests.

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Liu, H., Zheng, R., Zhang, Y. et al. Two distinct neuroanatomical subtypes of migraine without aura revealed by heterogeneity through discriminative analysis. Brain Imaging and Behavior 17, 715–724 (2023). https://doi.org/10.1007/s11682-023-00802-5

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  • DOI: https://doi.org/10.1007/s11682-023-00802-5

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