2026-05-20T03:47:29Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/133892024-11-29T10:48:51Zcom_20.500.12105_15322com_20.500.12105_2051com_20.500.12105_19604col_20.500.12105_16978col_20.500.12105_16984col_20.500.12105_19607

00925njm 22002777a 4500 dc Casquero-Veiga, Marta author Bueno-Fernandez, Clara author Romero-Miguel, Diego author Lamanna-Rama, Nicolas author Nacher, Juan author Desco, Manuel author Soto-Montenegro, Maria Luisa author 2021-03-10 Deep brain stimulation (DBS) is a powerful neurostimulation therapy proposed for the treatment of several neuropsychiatric disorders. However, DBS mechanism of action remains unclear, being its effects on brain dynamics of particular interest. Specifically, DBS reversibility is a major point of debate. Preclinical studies in obesity showed that the stimulation of the lateral hypothalamus (LH) and nucleus accumbens (NAcc), brain centers involved in satiety and reward circuits, are able to modulate the activity of brain structures impaired in this pathology. Nevertheless, the long-term persistence of this modulation after DBS withdrawal was unexplored. Here we examine the in vivo presence of such changes 1 month after LH- and NAcc-DBS, along with differences in synaptic plasticity, following an exploratory approach. Thus, both stimulated and non-stimulated animals with electrodes in the NAcc showed a common pattern of brain metabolism modulation, presumably derived from the electrodes' presence. In contrast, animals stimulated in the LH showed a relative metabolic invariance, and a reduction of neuroplasticity molecules, evidencing long-lasting neural changes. Our findings suggest that the reversibility or persistence of DBS modulation in the long-term depends on the selected DBS target. Therefore, the DBS footprint would be influenced by the stability achieved in the neural network involved during the stimulation. Sci Rep. 2021; 11(1):5580 10.1038/s41598-021-82987-7 2045-2322 Scientific reports 33692388 http://hdl.handle.net/20.500.12105/13389 Exploratory study of the long-term footprint of deep brain stimulation on brain metabolism and neuroplasticity in an animal model of obesity.