| Autor: |
Elisabeth Solana, Eloy Martinez-Heras, Elena H. Martinez-Lapiscina, Maria Sepulveda, Nuria Sola-Valls, Nuria Bargalló, Joan Berenguer, Yolanda Blanco, Magi Andorra, Irene Pulido-Valdeolivas, Irati Zubizarreta, Albert Saiz, Sara Llufriu |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
NeuroImage: Clinical, Vol 20, Iss , Pp 161-168 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2213-1582 |
| DOI: |
10.1016/j.nicl.2018.07.012 |
| Popis: |
Patients with multiple sclerosis (MS) display reduced structural connectivity among brain regions, but the pathogenic mechanisms underlying network disruption are still unknown. We aimed to investigate the association between the loss of diffusion-based structural connectivity, measured with graph theory metrics, and magnetic resonance (MR) markers of microstructural damage. Moreover, we evaluated the cognitive consequences of connectivity changes. We analysed the frontoparietal network in 102 MS participants and 25 healthy volunteers (HV). MR measures included radial diffusivity (RD), as marker of demyelination, and ratios of myo-inositol, N-acetylaspartate and glutamate+glutamine with creatine in white (WM) and grey matter as markers of astrogliosis, neuroaxonal integrity and glutamatergic neurotoxicity. Patients showed decreased global and local efficiency, and increased assortativity (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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