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Vesicular glutamate...
Vesicular glutamate transporter 2 expression in the ventral tegmental area of outbred male rats following exposure to nicotine and alcohol
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- Vrettou, Maria (författare)
- Uppsala universitet,Science for Life Laboratory, SciLifeLab,Institutionen för kvinnors och barns hälsa
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- Thalhammer, Stefan Bernhard (författare)
- Uppsala universitet,Institutionen för kvinnors och barns hälsa,Science for Life Laboratory, SciLifeLab
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- Dumas, Sylvie (författare)
- Oramacell, Paris, France.
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- Nilsson, Kent W. (författare)
- Uppsala universitet,Centrum för klinisk forskning, Västerås
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- Wallén-Mackenzie, Åsa (författare)
- Uppsala universitet,Institutionen för organismbiologi
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- Fredriksson, Robert (författare)
- Uppsala universitet,Institutionen för farmaceutisk biovetenskap
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- Nylander, Ingrid, 1957- (författare)
- Uppsala universitet,Institutionen för farmaceutisk biovetenskap
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- Comasco, Erika, 1982- (författare)
- Uppsala universitet,Science for Life Laboratory, SciLifeLab,Institutionen för kvinnors och barns hälsa
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(creator_code:org_t)
- Elsevier, 2023
- 2023
- Engelska.
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Ingår i: DRUG AND ALCOHOL DEPENDENCE REPORTS. - : Elsevier. - 2772-7246. ; 8
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Background: Initiation of use/co-use of nicotine and alcohol, commonly occurring in an episodic manner during adolescence, can imprint vulnerability to the developing brain and lead to addiction. The ventral tegmental area (VTA) is a key heterogeneous region of the mesocorticolimbic circuit involved in the binge-drinking and intoxication step of the addiction circuit. Higher human post-mortem VTA expression of vesicular glutamate transporter 2 (VGLUT2), a marker of the glutamatergic phenotype also expressed in dopaminergic [Tyrosine Hydroxylase (Th)-positive] neurons, has been associated with chronic nicotine use and co-use with alcohol. Methods: The present study aimed to map and characterize the Vglut2- and Th-expressing neurons in the VTA of adolescent male rats exposed or not to prolonged (six-weeks) episodic (three consecutive days/week) nicotine and/or alcohol administration. Nicotine (0.35 mg/kg free base) was injected subcutaneously, whereas alcohol (2 g/kg 20%) was administrated via gavage. Vglut2 and Th mRNA was assessed in the anterior and posterior VTA by use of in situ hybridization. Results: The profile of neurons varied with substance-exposure among VTA subregions. Th-only expressing neurons were more abundant in the posterior VTA of the group exposed to nicotine-only, compared to controls. The same neurons were, on the contrary, less present in the anterior VTA of animals exposed to alcohol-only, who also displayed a higher number of Vglut2-expressing neurons in the lateral anterior VTA. Conclusions: VTA Vglut2- and Th-only neurons seem differentially involved in the effects of adolescent episodic nicotine and alcohol exposure in the anterior and posterior VTA.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Beroendelära (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Substance Abuse (hsv//eng)
Nyckelord
- alcohol
- brain
- expression
- nicotine
- Vglut2
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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