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Identifying Diagnostic Biomarkers for Autism Spectrum Disorder From Higher-order Interactions Using the PED Algorithm

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Abstract

In the field of neuroimaging, more studies of abnormalities in brain regions of the autism spectrum disorder (ASD) usually focused on two brain regions connected, and less on abnormalities of higher-order interactions of brain regions. To explore the complex relationships of brain regions, we used the partial entropy decomposition (PED) algorithm to capture higher-order interactions by computing the higher-order dependencies of all three brain regions (triads). We proposed a method for examining the effect of individual brain regions on triads based on the PED and surrogate tests. The key triads were discovered by analyzing the effects. Further, the hypergraph modularity maximization algorithm revealed the higher-order brain structures, of which the link between right thalamus and left thalamus in ASD was more loose compared with the typical control (TC). Redundant key triad (left cerebellum crus 1 and left precuneus and right inferior occipital gyrus) exhibited a discernible attenuation in interaction in ASD, while the synergistic key triad (right cerebellum crus 1 and left postcentral gyrus and left lingual gyrus) indicated a notable decline. The results of classification model further confirmed the potential of the key triads as diagnostic biomarkers.

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No datasets were generated or analysed during the current study.

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Acknowledgements

We thank Professor Li Liu from the Big Data Center of Affiliated Hospital of Jiangnan University for her support and assistance in data collection, preprocessing, and analysis of potential biomarkers identified in this study.

Funding

This work was supported by the National Natural Science Foundation of China (Grant number 62161050).

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by H.W., Y.L. and Y.D. The first draft of the manuscript was written by H.W. and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Yanrui Ding.

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Wang, H., Liu, Y. & Ding, Y. Identifying Diagnostic Biomarkers for Autism Spectrum Disorder From Higher-order Interactions Using the PED Algorithm. Neuroinform (2024). https://doi.org/10.1007/s12021-024-09662-w

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  • DOI: https://doi.org/10.1007/s12021-024-09662-w

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