Cargando…
Age-associated changes in rich-club organisation in autistic and neurotypical human brains
Macroscopic structural networks in the human brain have a rich-club architecture comprising both highly inter-connected central regions and sparsely connected peripheral regions. Recent studies show that disruption of this functionally efficient organisation is associated with several psychiatric di...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4633620/ https://www.ncbi.nlm.nih.gov/pubmed/26537477 http://dx.doi.org/10.1038/srep16152 |
_version_ | 1782399237031460864 |
---|---|
author | Watanabe, Takamitsu Rees, Geraint |
author_facet | Watanabe, Takamitsu Rees, Geraint |
author_sort | Watanabe, Takamitsu |
collection | PubMed |
description | Macroscopic structural networks in the human brain have a rich-club architecture comprising both highly inter-connected central regions and sparsely connected peripheral regions. Recent studies show that disruption of this functionally efficient organisation is associated with several psychiatric disorders. However, despite increasing attention to this network property, whether age-associated changes in rich-club organisation occur during human adolescence remains unclear. Here, analysing a publicly shared diffusion tensor imaging dataset, we found that, during adolescence, brains of typically developing (TD) individuals showed increases in rich-club organisation and inferred network functionality, whereas individuals with autism spectrum disorders (ASD) did not. These differences between TD and ASD groups were statistically significant for both structural and functional properties. Moreover, this typical age-related changes in rich-club organisation were characterised by progressive involvement of the right anterior insula. In contrast, in ASD individuals, did not show typical increases in grey matter volume, and this relative anatomical immaturity was correlated with the severity of ASD social symptoms. These results provide evidence that rich-club architecture is one of the bases of functionally efficient brain networks underpinning complex cognitive functions in adult human brains. Furthermore, our findings suggest that immature rich-club organisation might be associated with some neurodevelopmental disorders. |
format | Online Article Text |
id | pubmed-4633620 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46336202015-11-05 Age-associated changes in rich-club organisation in autistic and neurotypical human brains Watanabe, Takamitsu Rees, Geraint Sci Rep Article Macroscopic structural networks in the human brain have a rich-club architecture comprising both highly inter-connected central regions and sparsely connected peripheral regions. Recent studies show that disruption of this functionally efficient organisation is associated with several psychiatric disorders. However, despite increasing attention to this network property, whether age-associated changes in rich-club organisation occur during human adolescence remains unclear. Here, analysing a publicly shared diffusion tensor imaging dataset, we found that, during adolescence, brains of typically developing (TD) individuals showed increases in rich-club organisation and inferred network functionality, whereas individuals with autism spectrum disorders (ASD) did not. These differences between TD and ASD groups were statistically significant for both structural and functional properties. Moreover, this typical age-related changes in rich-club organisation were characterised by progressive involvement of the right anterior insula. In contrast, in ASD individuals, did not show typical increases in grey matter volume, and this relative anatomical immaturity was correlated with the severity of ASD social symptoms. These results provide evidence that rich-club architecture is one of the bases of functionally efficient brain networks underpinning complex cognitive functions in adult human brains. Furthermore, our findings suggest that immature rich-club organisation might be associated with some neurodevelopmental disorders. Nature Publishing Group 2015-11-05 /pmc/articles/PMC4633620/ /pubmed/26537477 http://dx.doi.org/10.1038/srep16152 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Watanabe, Takamitsu Rees, Geraint Age-associated changes in rich-club organisation in autistic and neurotypical human brains |
title | Age-associated changes in rich-club organisation in autistic and neurotypical human brains |
title_full | Age-associated changes in rich-club organisation in autistic and neurotypical human brains |
title_fullStr | Age-associated changes in rich-club organisation in autistic and neurotypical human brains |
title_full_unstemmed | Age-associated changes in rich-club organisation in autistic and neurotypical human brains |
title_short | Age-associated changes in rich-club organisation in autistic and neurotypical human brains |
title_sort | age-associated changes in rich-club organisation in autistic and neurotypical human brains |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4633620/ https://www.ncbi.nlm.nih.gov/pubmed/26537477 http://dx.doi.org/10.1038/srep16152 |
work_keys_str_mv | AT watanabetakamitsu ageassociatedchangesinrichcluborganisationinautisticandneurotypicalhumanbrains AT reesgeraint ageassociatedchangesinrichcluborganisationinautisticandneurotypicalhumanbrains |