Allostatic load and disordered white matter microstructure in overweight adults.

Autor: Ottino-González J; Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain.; Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.; Institut de Recerca Sant Joan de Déu (IRSJD), Barcelona, Spain., Jurado MA; Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain. majurado@ub.edu.; Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain. majurado@ub.edu.; Institut de Recerca Sant Joan de Déu (IRSJD), Barcelona, Spain. majurado@ub.edu., García-García I; Montreal Neurological Institute, McGill University, Montreal, QC, Canada., Segura B; Departament de Medicina, Universitat de Barcelona, Barcelona, Spain.; Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain., Marqués-Iturria I; Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain., Sender-Palacios MJ; CAP Terrassa Nord, Consorci Sanitari de Terrassa, Barcelona, Spain.; Brain, Cognition and Behavior Clinical Research Group, Consorci Sanitari de Terrassa, Barcelona, Spain., Tor E; CAP Terrassa Nord, Consorci Sanitari de Terrassa, Barcelona, Spain.; Brain, Cognition and Behavior Clinical Research Group, Consorci Sanitari de Terrassa, Barcelona, Spain., Prats-Soteras X; Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain.; Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.; Institut de Recerca Sant Joan de Déu (IRSJD), Barcelona, Spain., Caldú X; Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Barcelona, Spain.; Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.; Institut de Recerca Sant Joan de Déu (IRSJD), Barcelona, Spain., Junqué C; Departament de Medicina, Universitat de Barcelona, Barcelona, Spain.; Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain.; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain., Pasternak O; Departments of Psychiatry and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA., Garolera M; Unitat de Neuropsicologia, Hospital de Terrassa, Consorci Sanitari de Terrassa, Barcelona, Spain.; Brain, Cognition and Behavior Clinical Research Group, Consorci Sanitari de Terrassa, Barcelona, Spain.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2018 Oct 26; Vol. 8 (1), pp. 15898. Date of Electronic Publication: 2018 Oct 26.
DOI: 10.1038/s41598-018-34219-8
Abstrakt: Overweight and stress are both related to brain structural abnormalities. The allostatic load model states that frequent disruption of homeostasis is inherently linked to oxidative stress and inflammatory responses that in turn can damage the brain. However, the effects of the allostatic load on the central nervous system remain largely unknown. The current study aimed to assess the relationship between the allostatic load and the composition of whole-brain white matter tracts in overweight subjects. Additionally, we have also tested for grey matter changes regarding allostatic load increase. Thirty-one overweight-to-obese adults and 21 lean controls participated in the study. Our results showed that overweight participants presented higher allostatic load indexes. Such increases correlated with lower fractional anisotropy in the inferior fronto-occipital fasciculi and the right anterior corona radiata, as well as with grey matter reductions in the left precentral gyrus, the left lateral occipital gyrus, and the right pars opercularis. These results suggest that an otherwise healthy overweight status is linked to long-term biological changes potentially harmful to the brain.
Databáze: MEDLINE
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