The neurons that drive infradian sleep-wake and mania-like behavioral rhythms
Infradian mood and sleep-wake rhythms with periods of 48 hr and beyond have been observed in bipolar disorder (BD) subjects that even persist in time isolation, indicating an endogenous origin. Here we show that mice exposed to methamphetamine (Meth) in drinking water develop infradian locomotor rhythms with periods of 48 hr and beyond which extend to sleep length and mania-like behaviors in support of a model for cycling in BD. This cycling capacity is abrogated upon genetic disruption of DA production in DA neurons of the ventral tegmental area (VTA) or ablation of nucleus accumbens (NAc) projecting, dopamine (DA) neurons. Chemogenetic activation of NAc-projecting DA neurons leads to locomotor period lengthening in clock deficient mice, while cytosolic calcium in DA processes of the NAc was found fluctuating synchronously with locomotor behavior. Together, our findings argue that BD cycling relies on infradian rhythm generation that depends on NAc-projecting DA neurons.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2023 |
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| Enthalten in: |
bioRxiv : the preprint server for biology - (2023) vom: 16. Nov. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Markam, Pratap S [VerfasserIn] |
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| Links: |
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| Themen: |
Bipolar disorders |
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| Anmerkungen: |
Date Revised 13.12.2023 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1101/2023.11.14.566955 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM365054984 |
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| 520 | |a Infradian mood and sleep-wake rhythms with periods of 48 hr and beyond have been observed in bipolar disorder (BD) subjects that even persist in time isolation, indicating an endogenous origin. Here we show that mice exposed to methamphetamine (Meth) in drinking water develop infradian locomotor rhythms with periods of 48 hr and beyond which extend to sleep length and mania-like behaviors in support of a model for cycling in BD. This cycling capacity is abrogated upon genetic disruption of DA production in DA neurons of the ventral tegmental area (VTA) or ablation of nucleus accumbens (NAc) projecting, dopamine (DA) neurons. Chemogenetic activation of NAc-projecting DA neurons leads to locomotor period lengthening in clock deficient mice, while cytosolic calcium in DA processes of the NAc was found fluctuating synchronously with locomotor behavior. Together, our findings argue that BD cycling relies on infradian rhythm generation that depends on NAc-projecting DA neurons | ||
| 650 | 4 | |a Preprint | |
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| 700 | 1 | |a Bourguignon, Clément |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Lei |e verfasserin |4 aut | |
| 700 | 1 | |a Darvas, Martin |e verfasserin |4 aut | |
| 700 | 1 | |a Sabatini, Paul V |e verfasserin |4 aut | |
| 700 | 1 | |a Kokoeva, Maia V |e verfasserin |4 aut | |
| 700 | 1 | |a Giros, Bruno |e verfasserin |4 aut | |
| 700 | 1 | |a Storch, Kai-Florian |e verfasserin |4 aut | |
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