Tags

Type your tag names separated by a space and hit enter

Graph Analysis of Functional Brain Networks in Patients with Mild Traumatic Brain Injury.
PLoS One 2017; 12(1):e0171031Plos

Abstract

Mild traumatic brain injury (mTBI) is one of the most common neurological disorders worldwide. Posttraumatic complaints are frequently reported, interfering with outcome. However, a consistent neural substrate has not yet been found. We used graph analysis to further unravel the complex interactions between functional brain networks, complaints, anxiety and depression in the sub-acute stage after mTBI. This study included 54 patients with uncomplicated mTBI and 20 matched healthy controls. Posttraumatic complaints, anxiety and depression were measured at two weeks post-injury. Patients were selected based on presence (n = 34) or absence (n = 20) of complaints. Resting-state fMRI scans were made approximately four weeks post-injury. High order independent component analysis resulted in 89 neural components that were included in subsequent graph analyses. No differences in graph measures were found between patients with mTBI and healthy controls. Regarding the two patient subgroups, degree, strength, local efficiency and eigenvector centrality of the bilateral posterior cingulate/precuneus and bilateral parahippocampal gyrus were higher, and eigenvector centrality of the frontal pole/ bilateral middle & superior frontal gyrus was lower in patients with complaints compared to patients without complaints. In patients with mTBI, higher degree, strength and eigenvector centrality of default mode network components were related to higher depression scores, and higher degree and eigenvector centrality of executive network components were related to lower depression scores. In patients without complaints, one extra module was found compared to patients with complaints and healthy controls, consisting of the cingulate areas. In conclusion, this research extends the knowledge of functional network connectivity after mTBI. Specifically, our results suggest that an imbalance in the function of the default mode- and executive network plays a central role in the interaction between emotion regulation and the persistence of posttraumatic complaints.

Authors+Show Affiliations

Department of Neurology of the University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.BCN NeuroImaging Center and Department of Neuroscience of the University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.Department of Neuropsychology of the University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.Department of Neurology of the University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.Department of Neuropsychology of the University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.Department of Neurology of the University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28129397

Citation

van der Horn, Harm J., et al. "Graph Analysis of Functional Brain Networks in Patients With Mild Traumatic Brain Injury." PloS One, vol. 12, no. 1, 2017, pp. e0171031.
van der Horn HJ, Liemburg EJ, Scheenen ME, et al. Graph Analysis of Functional Brain Networks in Patients with Mild Traumatic Brain Injury. PLoS ONE. 2017;12(1):e0171031.
van der Horn, H. J., Liemburg, E. J., Scheenen, M. E., de Koning, M. E., Spikman, J. M., & van der Naalt, J. (2017). Graph Analysis of Functional Brain Networks in Patients with Mild Traumatic Brain Injury. PloS One, 12(1), pp. e0171031. doi:10.1371/journal.pone.0171031.
van der Horn HJ, et al. Graph Analysis of Functional Brain Networks in Patients With Mild Traumatic Brain Injury. PLoS ONE. 2017;12(1):e0171031. PubMed PMID: 28129397.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Graph Analysis of Functional Brain Networks in Patients with Mild Traumatic Brain Injury. AU - van der Horn,Harm J, AU - Liemburg,Edith J, AU - Scheenen,Myrthe E, AU - de Koning,Myrthe E, AU - Spikman,Jacoba M, AU - van der Naalt,Joukje, Y1 - 2017/01/27/ PY - 2016/10/09/received PY - 2017/01/13/accepted PY - 2017/1/28/entrez PY - 2017/1/28/pubmed PY - 2017/8/9/medline SP - e0171031 EP - e0171031 JF - PloS one JO - PLoS ONE VL - 12 IS - 1 N2 - Mild traumatic brain injury (mTBI) is one of the most common neurological disorders worldwide. Posttraumatic complaints are frequently reported, interfering with outcome. However, a consistent neural substrate has not yet been found. We used graph analysis to further unravel the complex interactions between functional brain networks, complaints, anxiety and depression in the sub-acute stage after mTBI. This study included 54 patients with uncomplicated mTBI and 20 matched healthy controls. Posttraumatic complaints, anxiety and depression were measured at two weeks post-injury. Patients were selected based on presence (n = 34) or absence (n = 20) of complaints. Resting-state fMRI scans were made approximately four weeks post-injury. High order independent component analysis resulted in 89 neural components that were included in subsequent graph analyses. No differences in graph measures were found between patients with mTBI and healthy controls. Regarding the two patient subgroups, degree, strength, local efficiency and eigenvector centrality of the bilateral posterior cingulate/precuneus and bilateral parahippocampal gyrus were higher, and eigenvector centrality of the frontal pole/ bilateral middle & superior frontal gyrus was lower in patients with complaints compared to patients without complaints. In patients with mTBI, higher degree, strength and eigenvector centrality of default mode network components were related to higher depression scores, and higher degree and eigenvector centrality of executive network components were related to lower depression scores. In patients without complaints, one extra module was found compared to patients with complaints and healthy controls, consisting of the cingulate areas. In conclusion, this research extends the knowledge of functional network connectivity after mTBI. Specifically, our results suggest that an imbalance in the function of the default mode- and executive network plays a central role in the interaction between emotion regulation and the persistence of posttraumatic complaints. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/28129397/Graph_Analysis_of_Functional_Brain_Networks_in_Patients_with_Mild_Traumatic_Brain_Injury_ L2 - http://dx.plos.org/10.1371/journal.pone.0171031 DB - PRIME DP - Unbound Medicine ER -