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| Pàgina inicial > Articles > Articles publicats > BDNF Val66Met gene polymorphism modulates brain activity following rTMS-induced memory impairment |
(Institut d'Investigacions Biomèdiques August Pi i Sunyer) (Hospital San Raffaele Cassino) (Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) SDN) (Institut d'Investigacions Biomèdiques August Pi i Sunyer) (Hospital Clínic i Provincial de Barcelona) (CIC CPCET Service de Pharmacologie Clinique et Pharmacovigilance) (University of Siena. Dipartimento di Scienze Mediche, Chirurgiche e Neuroscienze, Brain Investigation & Neuromodulation Laboratory (Si-BIN Lab)) (Institut Germans Trias i Pujol. Institut Guttmann) (Neurosciences Therapeutic Area, GlaxoSmithKline R&D, Stevenage, UK) (University of Trento. Center for Mind/Brain Sciences (CIMEC)) (Institut Germans Trias i Pujol. Institut Guttmann)
| Data: | 2022 |
| Resum: | The BDNF Val66Met gene polymorphism is a relevant factor explaining inter-individual differences to TMS responses in studies of the motor system. However, whether this variant also contributes to TMS-induced memory effects, as well as their underlying brain mechanisms, remains unexplored. In this investigation, we applied rTMS during encoding of a visual memory task either over the left frontal cortex (LFC; experimental condition) or the cranial vertex (control condition). Subsequently, individuals underwent a recognition memory phase during a functional MRI acquisition. We included 43 young volunteers and classified them as 19 Met allele carriers and 24 as Val/Val individuals. The results revealed that rTMS delivered over LFC compared to vertex stimulation resulted in reduced memory performance only amongst Val/Val allele carriers. This genetic group also exhibited greater fMRI brain activity during memory recognition, mainly over frontal regions, which was positively associated with cognitive performance. We concluded that BDNF Val66Met gene polymorphism, known to exert a significant effect on neuroplasticity, modulates the impact of rTMS both at the cognitive as well as at the associated brain networks expression levels. This data provides new insights on the brain mechanisms explaining cognitive inter-individual differences to TMS, and may inform future, more individually-tailored rTMS interventions. |
| Ajuts: | European Commission FP7/2007-2013 European Commission. Horizon 2020 ITN-ETN BB Diag Agencia Estatal de Investigación RTI2018-095181-B-C21 Ministerio de Educación, Cultura y Deporte 12135072325-79 Ministerio de Economía y Competitividad BES-2016-077620 Ministerio de Economía y Competitividad PSI2015-64227-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2017SGR748 |
| 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: | Neuroscience ; Cognitive neuroscience ; Psychology ; Human behaviour |
| Publicat a: | Scientific reports, Vol. 12 (2022) , ISSN 2045-2322 |
