Noradrenergic Modulation of Learned and Innate Behaviors in Dopamine Transporter Knockout Rats by Guanfacine
Investigation of the precise mechanisms of attention deficit and hyperactivity disorder (ADHD) and other dopamine-associated conditions is crucial for the development of new treatment approaches. In this study, we assessed the effects of repeated and acute administration of α2A-adrenoceptor agonist...
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MDPI AG
2023-01-01
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| Online Access: | https://www.mdpi.com/2227-9059/11/1/222 |
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| author | Anna Volnova Natalia Kurzina Anastasia Belskaya Arina Gromova Arseniy Pelevin Maria Ptukha Zoia Fesenko Alla Ignashchenkova Raul R. Gainetdinov |
| author_facet | Anna Volnova Natalia Kurzina Anastasia Belskaya Arina Gromova Arseniy Pelevin Maria Ptukha Zoia Fesenko Alla Ignashchenkova Raul R. Gainetdinov |
| author_sort | Anna Volnova |
| collection | DOAJ |
| description | Investigation of the precise mechanisms of attention deficit and hyperactivity disorder (ADHD) and other dopamine-associated conditions is crucial for the development of new treatment approaches. In this study, we assessed the effects of repeated and acute administration of α2A-adrenoceptor agonist guanfacine on innate and learned forms of behavior of dopamine transporter knockout (DAT-KO) rats to evaluate the possible noradrenergic modulation of behavioral deficits. DAT-KO and wild type rats were trained in the Hebb–Williams maze to perform spatial working memory tasks. Innate behavior was evaluated via pre pulse inhibition (PPI). Brain activity of the prefrontal cortex and the striatum was assessed. Repeated administration of GF improved the spatial working memory task fulfillment and PPI in DAT-KO rats, and led to specific changes in the power spectra and coherence of brain activity. Our data indicate that both repeated and acute treatment with a non-stimulant noradrenergic drug lead to improvements in the behavior of DAT-KO rats. This study further supports the role of the intricate balance of norepinephrine and dopamine in the regulation of attention. The observed compensatory effect of guanfacine on the behavior of hyperdopaminergic rats may be used in the development of combined treatments to support the dopamine–norepinephrine balance. |
| first_indexed | 2024-03-09T13:28:37Z |
| format | Article |
| id | doaj.art-cf2937d3de0348638f997c90825dc07d |
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| issn | 2227-9059 |
| language | English |
| last_indexed | 2024-03-09T13:28:37Z |
| publishDate | 2023-01-01 |
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| record_format | Article |
| series | Biomedicines |
| spelling | doaj.art-cf2937d3de0348638f997c90825dc07d2023-11-30T21:21:15ZengMDPI AGBiomedicines2227-90592023-01-0111122210.3390/biomedicines11010222Noradrenergic Modulation of Learned and Innate Behaviors in Dopamine Transporter Knockout Rats by GuanfacineAnna Volnova0Natalia Kurzina1Anastasia Belskaya2Arina Gromova3Arseniy Pelevin4Maria Ptukha5Zoia Fesenko6Alla Ignashchenkova7Raul R. Gainetdinov8Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, RussiaInstitute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, RussiaInstitute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, RussiaBiological Faculty, Saint Petersburg State University, Saint Petersburg 199034, RussiaInstitute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, RussiaInstitute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, RussiaInstitute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, RussiaNevsky Center of Scientific Collaboration, Saint Petersburg 192119, RussiaInstitute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg 199034, RussiaInvestigation of the precise mechanisms of attention deficit and hyperactivity disorder (ADHD) and other dopamine-associated conditions is crucial for the development of new treatment approaches. In this study, we assessed the effects of repeated and acute administration of α2A-adrenoceptor agonist guanfacine on innate and learned forms of behavior of dopamine transporter knockout (DAT-KO) rats to evaluate the possible noradrenergic modulation of behavioral deficits. DAT-KO and wild type rats were trained in the Hebb–Williams maze to perform spatial working memory tasks. Innate behavior was evaluated via pre pulse inhibition (PPI). Brain activity of the prefrontal cortex and the striatum was assessed. Repeated administration of GF improved the spatial working memory task fulfillment and PPI in DAT-KO rats, and led to specific changes in the power spectra and coherence of brain activity. Our data indicate that both repeated and acute treatment with a non-stimulant noradrenergic drug lead to improvements in the behavior of DAT-KO rats. This study further supports the role of the intricate balance of norepinephrine and dopamine in the regulation of attention. The observed compensatory effect of guanfacine on the behavior of hyperdopaminergic rats may be used in the development of combined treatments to support the dopamine–norepinephrine balance.https://www.mdpi.com/2227-9059/11/1/222dopamine (DA)norepinephrine (NE)dopamine transporter knockout (DAT-KO) ratsADHD modelguanfacine (GF)spatial working memory |
| spellingShingle | Anna Volnova Natalia Kurzina Anastasia Belskaya Arina Gromova Arseniy Pelevin Maria Ptukha Zoia Fesenko Alla Ignashchenkova Raul R. Gainetdinov Noradrenergic Modulation of Learned and Innate Behaviors in Dopamine Transporter Knockout Rats by Guanfacine Biomedicines dopamine (DA) norepinephrine (NE) dopamine transporter knockout (DAT-KO) rats ADHD model guanfacine (GF) spatial working memory |
| title | Noradrenergic Modulation of Learned and Innate Behaviors in Dopamine Transporter Knockout Rats by Guanfacine |
| title_full | Noradrenergic Modulation of Learned and Innate Behaviors in Dopamine Transporter Knockout Rats by Guanfacine |
| title_fullStr | Noradrenergic Modulation of Learned and Innate Behaviors in Dopamine Transporter Knockout Rats by Guanfacine |
| title_full_unstemmed | Noradrenergic Modulation of Learned and Innate Behaviors in Dopamine Transporter Knockout Rats by Guanfacine |
| title_short | Noradrenergic Modulation of Learned and Innate Behaviors in Dopamine Transporter Knockout Rats by Guanfacine |
| title_sort | noradrenergic modulation of learned and innate behaviors in dopamine transporter knockout rats by guanfacine |
| topic | dopamine (DA) norepinephrine (NE) dopamine transporter knockout (DAT-KO) rats ADHD model guanfacine (GF) spatial working memory |
| url | https://www.mdpi.com/2227-9059/11/1/222 |
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