Sex Differences and Commonalities in the Impact of a Palatable Meal on Thalamic and Insular Connectivity
Kilpatrick, Lisa (G Oppenheimer Center for Neurobiology of Stress and Resilience)
Pribic, Teodora (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Ciccantelli, Barbara (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Malagelada Prats, Carolina (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Livovsky, Dan M. (Hebrew University)
Accarino, Ana María (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Pareto, Deborah (Hospital Universitari Vall d'Hebron)
Azpiroz Vidaur, Fernando (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Mayer, Emeran A. (G Oppenheimer Center for Neurobiology of Stress and Resilience)
Universitat Autònoma de Barcelona

Data:	2020
Resum:	The neural mechanisms underlying subjective responses to meal ingestion remain incompletely understood. We previously showed in healthy men an increase in thalamocortical, and a decrease in insular-cortical connectivity in response to a palatable meal. As sex is increasingly recognized as an important biological variable, we aimed to evaluate sex differences and commonalities in the impact of a well-liked meal on thalamic and anterior insular connectivity in healthy individuals. Participants (20 women and 20 age-matched men) underwent resting-state magnetic resonance imaging (rsMRI) before and after ingesting a palatable meal. In general, the insula showed extensive postprandial reductions in connectivity with sensorimotor and prefrontal cortices, while the thalamus showed increases in connectivity with insular, frontal, and occipital cortices, in both women and men. However, reductions in insular connectivity were more prominent in men, and were related to changes in meal-related sensations (satiety and digestive well-being) in men only. In contrast, increases in thalamic connectivity were more prominent in women, and were related to changes in satiety and digestive well-being in women only. These results suggest that brain imaging may provide objective and sex-specific biomarkers of the subjective feelings associated with meal ingestion SAF 2016-76648.
Ajuts:	Ministerio de Economía y Competitividad SAF2016-76648
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Meal ingestion ; Postprandial sensations ; Hedonic response ; Brain imaging ; Sex differences ; Resting state
Publicat a:	Nutrients, Vol. 12 (june 2020) , ISSN 2072-6643

DOI: 10.3390/nu12061627
PMID: 32492812

12 p, 727.8 KB

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