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1.	Schiller, D, et al. (author) The Human Affectome 2024 In: Neuroscience and biobehavioral reviews. - 1873-7528. ; 158, s. 105450- Journal article (peer-reviewed)
2.	Lopez-Ferreras, Lorena, et al. (author) The supramammillary nucleus controls anxiety-like behavior; key role of GLP-1R 2020 In: Psychoneuroendocrinology. - : Elsevier BV. - 0306-4530. ; 119:September Journal article (peer-reviewed)abstract Anxiety disorders are among the most prevalent categories of mental illnesses. The gut-brain axis, along with gastrointestinally-derived neuropeptides, like glucagon-like peptide-1 (GLP-1), are emerging as potential key regulators of emotionality, including anxiety behavior. However, the neuroanatomical substrates from which GLP-1 exerts its anxiogenic effect remain poorly characterized. Here we focus on a relatively new candidate nucleus, the supramammillary nucleus (SuM), located just caudal to the lateral hypothalamus and ventral to the ventral tegmental area. Our focus on the SuM is supported by previous data showing expression of GLP-1R mRNA throughout the SuM and activation of the SuM during anxiety-inducing behaviors in rodents. Data show that chemogenetic activation of neurons in the SuM results in an anxiolytic response in male and female rats. In contrast, selective activation of SuM GLP-1R, by microinjection of a GLP-1R agonist exendin-4 into the SuM resulted in potent anxiety-like behavior, measured in both open field and elevated plus maze tests in male and female rats. This anxiogenic effect of GLP-1R activation persisted after high-fat diet exposure. Importantly, reduction of GLP-1R expression in the SuM, by AAV-shRNA GLP-1R knockdown, resulted in a clear anxiolytic response; an effect only observed in female rats. Our data identify a new neural substrate for GLP-1 control of anxiety-like behavior and indicate that the SuM GLP-1R are sufficient for anxiogenesis in both sexes, but necessary only in females.

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Type of publication: journal article (2)

Type of content: peer-reviewed (2)

Author/Editor: Becker, S. (1); Rizzo, A. (1); Wang, Y. (1); Williams, C. (1); Cherbuin, N (1); Sachdev, PS (1); show more...; Bruno, A. (1); Penninx, BWJH (1); Aghajani, M (1); Stefanova, E. (1); Albrecht, F (1); Skibicka, Karolina P (1); Richard, Jennifer E. (1); Eerola, Kim, 1982 (1); López-Ferreras, Lore ... (1); Anders, S. (1); Zahn, R (1); Palumbo, R (1); Shevchouk, Olesya (1); Moore, M. (1); Hayes, M. R. (1); Aue, T. (1); Sato, W. (1); Jovanovic, T (1); Schiller, D (1); Richter, T. (1); Cipresso, P (1); Fu, CHY (1); Musser, ED (1); Peltonen, K (1); Hofmann, SG (1); Verona, E. (1); Lowe, L. (1); Martin, LJ (1); Owolabi, M (1); Stern, ER (1); Pellegrini, S (1); Riva, G. (1); Pietrini, P (1); Minnier, J. (1); Li, CSR (1); Schroeter, ML (1); Ibanez, A (1); Zupan, B. (1); Hendler, T (1); Lawrence, A. (1); Mueller, SC (1); Alexander, R. (1); Critchley, H (1); Soreq, H (1); show less...

University: University of Gothenburg (1); Karolinska Institutet (1)

Language: English (2)

Research subject (UKÄ/SCB): Medical and Health Sciences (1)

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