2016
DOI: 10.1016/j.neuropharm.2015.12.020
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Dorsolateral periaqueductal gray matter CB1 and TRPV1 receptors exert opposite modulation on expression of contextual fear conditioning

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Cited by 35 publications
(24 citation statements)
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“…Previous studies suggest that TRPV1 and CB 1 receptors exert opposite effects on anxiety-related behaviour (Casarotto et al, 2012a;Uliana et al, 2016) conditions. Furthermore, previous work from our laboratory suggests a differential role of the CB 1 receptor in the columns of the PAG in hyperalgesia associated with negative affective state.…”
Section: Chapter 6: General Discussionmentioning
confidence: 96%
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“…Previous studies suggest that TRPV1 and CB 1 receptors exert opposite effects on anxiety-related behaviour (Casarotto et al, 2012a;Uliana et al, 2016) conditions. Furthermore, previous work from our laboratory suggests a differential role of the CB 1 receptor in the columns of the PAG in hyperalgesia associated with negative affective state.…”
Section: Chapter 6: General Discussionmentioning
confidence: 96%
“…Jennings et al provides evidence that the WKY model of negative affect is insensitive to a CB 1 receptor agonist administered directly into all three columns of the PAG (Jennings, 2015). Previous studies suggest that TRPV1 and CB 1 receptors exert opposite effects on anxiety-related behaviour (Casarotto et al, 2012a;Uliana et al, 2016) conditions. Thus, taken together the previous work on CB 1 in the PAG-RVM pathway suggests that altered expression and/or functionality of TRPV1 may underly the hyperalgesic behaviour in WKY rats, as TRPV1 and CB 1 are known to maintain homeostasis.…”
Section: Tail Flick Testmentioning
confidence: 96%
“…A resposta comportamental do medo condicionado é bem descrita e caracterizada por uma postura imóvel e tensa que, geralmente, é acompanhada pelos componentes cardiovasculares e autonômicos como aumento da pressão arterial média (PAM) e frequência cardíaca (FC), e queda da temperatura cutânea caudal (TC) devido ativação do sistema nervoso simpático (Carrive, 2000;Fanselow, 1980;Hott et al, 2016;Resstel et al, 2008a;Spiacci et al, 2016;Uliana et al, 2016;Vianna and Carrive, 2005). Esse conjunto de alterações comportamentais e autonômicas auxilia o organismo a responder a potenciais ameaças.…”
Section: Discussionunclassified
“…Em nossos resultados a ativação ou bloqueio de receptores CB1 no NLET em animais submetidos ao MCC levaram a efeitos tipo ansiolítico e ansiogênico, respectivamente, na resposta comportamental e de pressão arterial média (PAM). Tal resultado é em parte similar àqueles de estudos prévios do nosso grupo envolvendo a neurotransmissão endocanabinoide em outras estruturas cerebrais como a SCP e hipocampo dorsal (Spiacci et al, 2016;Uliana et al, 2016 (Resstel et al, 2008b).…”
Section: Discussionunclassified
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