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Sökning: L773:0036 8075 OR L773:1095 9203 > Göteborgs universitet > Linköpings universitet

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1.
  • Barbier, Estelle, et al. (författare)
  • A molecular mechanism for choosing alcohol over an alternative reward
  • 2018
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 360:6395, s. 1321-
  • Tidskriftsartikel (refereegranskat)abstract
    • Alcohol addiction leads to increased choice of alcohol over healthy rewards. We established an exclusive choice procedure in which similar to 15% of outbred rats chose alcohol over a high-value reward. These animals displayed addiction-like traits, including high motivation to obtain alcohol and pursuit of this drug despite adverse consequences. Expression of the g-aminobutyric acid (GABA) transporter GAT-3 was selectively decreased within the amygdala of alcohol-choosing rats, whereas a knockdown of this transcript reversed choice preference of rats that originally chose a sweet solution over alcohol. GAT-3 expression was selectively decreased in the central amygdala of alcohol-dependent people compared to those who died of unrelated causes. Impaired GABA clearance within the amygdala contributes to alcohol addiction, appears to translate between species, and may offer targets for new pharmacotherapies for treating this disorder.
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2.
  • Strakosas, Xenofon, et al. (författare)
  • Metabolite-induced in vivo fabrication of substrate-free organic bioelectronics
  • 2023
  • Ingår i: Science. - : AMER ASSOC ADVANCEMENT SCIENCE. - 0036-8075 .- 1095-9203. ; 379:6634, s. 795-802
  • Tidskriftsartikel (refereegranskat)abstract
    • Interfacing electronics with neural tissue is crucial for understanding complex biological functions, but conventional bioelectronics consist of rigid electrodes fundamentally incompatible with living systems. The difference between static solid-state electronics and dynamic biological matter makes seamless integration of the two challenging. To address this incompatibility, we developed a method to dynamically create soft substrate-free conducting materials within the biological environment. We demonstrate in vivo electrode formation in zebrafish and leech models, using endogenous metabolites to trigger enzymatic polymerization of organic precursors within an injectable gel, thereby forming conducting polymer gels with long-range conductivity. This approach can be used to target specific biological substructures and is suitable for nerve stimulation, paving the way for fully integrated, in vivo-fabricated electronics within the nervous system.
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  • Resultat 1-2 av 2

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