Abstract
In the present study we report the relationship among MRI-based skull and cervical spine morphometric measures as well as symptom severity (disability—as measured by Oswestry Head and Neck Pain Scale and social isolation—as measured by the UCLA Loneliness scale) on biomarkers of allostatic load using estrogen, interleukin-6, C-reactive protein, and cortisol in a sample of 46 CMI patients. Correlational analyses showed that McRae line length was negatively associated with interleukin-6 and C-reactive protein levels, and Analysis of Variance (ANOVA) showed joint effects of morphometric measures (McRae line length, anterior CSF space) and symptom severity (disability and loneliness) on estrogen and intereukin-6 levels. These results are consistent with allostatic load. That is, when the combination of CSF crowding and self-report symptom (disability and loneliness) severity exceed the capacity of biological resilience factors, then biomarkers such as neuroprotective estrogen levels drop, rather than rise, with increasing symptom severity.
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Data Availability
The dataset is available by request from Philip A. Allen.
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Funding
This research was funded by NIH NINDS R15 grant 1R15NS109957-01A1 and funding from Conquer Chiari.
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P.A.A., D.D., Monica G., F.L., and P.K. wrote the main manuscript text, P.A.A. analyzed the data, D.L. completed the morphometric analyses, M.M.A.S. and J.R.H. constructed the Tables and Figures, and S.V. Maitane G., D.L., and R.L. reviewed the manuscript. P.A.A. and M.M.A.S. developed the allostatic load model.
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Al Samman, M.M., Garcia, M.A., García, M. et al. Relationship of Morphometrics and Symptom Severity in Female Type I Chiari Malformation Patients with Biological Resilience. Cerebellum (2023). https://doi.org/10.1007/s12311-023-01627-0
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DOI: https://doi.org/10.1007/s12311-023-01627-0