| Title: | Structural correlations between brain magnetic resonance image-derived phenotypes and retinal neuroanatomy |
| Journal: | European Journal of Neurology |
| Published: | 8 May 2024 |
| Pubmed: | https://pubmed.ncbi.nlm.nih.gov/38716763/ |
| DOI: | https://doi.org/10.1111/ene.16288 |
| URL: | https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/ene.16288 |
Publication 12124
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Abstract
BACKGROUND AND PURPOSE: The eye is a well-established model of brain structure and function, yet region-specific structural correlations between the retina and the brain remain underexplored. Therefore, we aim to explore and describe the relationships between the retinal layer thicknesses and brain magnetic resonance image (MRI)-derived phenotypes in UK Biobank.</p>
METHODS: Participants with both quality-controlled optical coherence tomography (OCT) and brain MRI were included in this study. Retinal sublayer thicknesses and total macular thickness were derived from OCT scans. Brain image-derived phenotypes (IDPs) of 153 cortical and subcortical regions were processed from MRI scans. We utilized multivariable linear regression models to examine the association between retinal thickness and brain regional volumes. All analyses were corrected for multiple testing and adjusted for confounders.</p>
RESULTS: Data from 6446 participants were included in this study. We identified significant associations between volumetric brain MRI measures of subregions in the occipital lobe (intracalcarine cortex), parietal lobe (postcentral gyrus), cerebellum (lobules VI, VIIb, VIIIa, VIIIb, and IX), and deep brain structures (thalamus, hippocampus, caudate, putamen, pallidum, and accumbens) and the thickness of the innermost retinal sublayers and total macular thickness (all p < 3.3 × 10-5). We did not observe statistically significant associations between brain IDPs and the thickness of the outer retinal sublayers.</p>
CONCLUSIONS: Thinner inner and total retinal thicknesses are associated with smaller volumes of specific brain regions. Notably, these relationships extend beyond anatomically established retina-brain connections.</p>
14 Authors
- Zihan Sun
- Bing Zhang
- Stephen Smith
- Denize Atan
- Anthony P. Khawaja
- Kelsey V. Stuart
- Robert N. Luben
- Mahantesh I. Biradar
- Thomas McGillivray
- Praveen J. Patel
- Peng T. Khaw
- Axel Petzold
- Paul J. Foster
- Biobank Eye and Vision Consortium
1 Application
| Application ID | Title |
|---|---|
| 36741 | Discovering the biological mechanisms underlying glaucoma and neurodegeneration by analysis of genetic and environmental determinants and associations with other systemic traits in the UK Biobank |
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