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Hélio Zangrossi

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Christiana Villela de Andrade Strauss; Maria Adrielle Vicente; Hélio Zangrossi
Activation of 5-HT1A receptors in the rat basolateral amygdala induces both anxiolytic and antipanic-like effects.
Alline Cristina Campos; Milene C Carvalho; Vanessa de Paula Soares; Frederico Rogério Ferreira; Maria Adrielle Vicente; Hélio Zangrossi; Antonio Waldo Zuardi; Marcus Lira Brandão; Francisco Silveira Guimarães
Involvement of serotonin-mediated neurotransmission in the dorsal periaqueductal gray matter on cannabidiol chronic effects in panic-like responses in rats.
A Spiacci; Norberto Cysne Coimbra; Hélio Zangrossi
Differential involvement of dorsal raphe subnuclei in the regulation of anxiety- and panic-related defensive behaviors.

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2013: Christiana Villela de Andrade Strauss; Maria Adrielle Vicente; Hélio Zangrossi
Activation of 5-HT1A receptors in the rat basolateral amygdala induces both anxiolytic and antipanic-like effects.
Behavioural brain research 2013;246():103-10.
2013: Alline Cristina Campos; Milene C Carvalho; Vanessa de Paula Soares; Frederico Rogério Ferreira; Maria Adrielle Vicente; Hélio Zangrossi; Antonio Waldo Zuardi; Marcus Lira Brandão; Francisco Silveira Guimarães
Involvement of serotonin-mediated neurotransmission in the dorsal periaqueductal gray matter on cannabidiol chronic effects in panic-like responses in rats.
Psychopharmacology 2013;226(1):13-24.
2012: A Spiacci; Norberto Cysne Coimbra; Hélio Zangrossi
Differential involvement of dorsal raphe subnuclei in the regulation of anxiety- and panic-related defensive behaviors.
Neuroscience 2012;227():350-60.
2012: Camila M Roncon; Rosangela G Santana; Hélio Zangrossi; Carla Biesdorf; Frederico G Graeff; Elisabeth Aparecida Audi
The panicolytic-like effect of fluoxetine in the elevated T-maze is mediated by serotonin-induced activation of endogenous opioids in the dorsal periaqueductal grey.
Journal of psychopharmacology (Oxford, England) 2012;26(4):525-31.
2011: Vanessa de Paula Soares; Francisco Silveira Guimarães; Maria Adrielle Vicente; Hélio Zangrossi; Caroline Biojone; Sâmia Regiane Lourenço Joca
Distinct behavioral consequences of stress models of depression in the elevated T-maze.
Behavioural brain research 2011;225(2):590-5.
2011: Thatiane de Oliveira Sergio; Valquíria Camin de Bortoli; Hélio Zangrossi
Serotonin-2A receptor regulation of panic-like behavior in the rat dorsal periaqueductal gray matter: the role of GABA.
Psychopharmacology 2011;218(4):725-32.
2011: Caroline Biojone; Plínio C Casarotto; Leonardo B Resstel; Hélio Zangrossi; Francisco Silveira Guimarães; Fabrício A Moreira
Anti-aversive effects of the atypical antipsychotic, aripiprazole, in animal models of anxiety.
Journal of psychopharmacology (Oxford, England) 2011;25(6):801-7.
2011: Vânia Ramos Sela; Carla Biesdorf; Diego Henrique Ramos; Hélio Zangrossi; Frederico G Graeff; Elisabeth Aparecida Audi
Serotonin-1A receptors in the dorsal periaqueductal gray matter mediate the panicolytic-like effect of pindolol and paroxetine combination in the elevated T-maze.
Neuroscience letters 2011;495(1):63-6.
2011: Roger L H Pobbe; Hélio Zangrossi; D Caroline Blanchard; Robert J Blanchard
Involvement of dorsal raphe nucleus and dorsal periaqueductal gray 5-HT receptors in the modulation of mouse defensive behaviors.
European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology 2011;21(4):306-15.
2011: Paula Shimene de Melo Yamashita; Valquíria Camin de Bortoli; Hélio Zangrossi
5-HT2C receptor regulation of defensive responses in the rat dorsal periaqueductal gray.
Neuropharmacology 2011;60(2-3):216-22.
2010: Vanessa de Paula Soares; Alline Cristina Campos; Valquíria Camin de Bortoli; Hélio Zangrossi; Francisco Silveira Guimarães; Antonio Waldo Zuardi
Intra-dorsal periaqueductal gray administration of cannabidiol blocks panic-like response by activating 5-HT1A receptors.
Behavioural brain research 2010;213(2):225-9.
2010: Vânia R Sela; Camila M Roncon; Hélio Zangrossi; Frederico G Graeff; Elisabeth Aparecida Audi
Pindolol potentiates the panicolytic effect of paroxetine in the elevated T-maze.
Life sciences 2010;87(13-14):445-50.
2010: Frederico G Graeff; Hélio Zangrossi
The dual role of serotonin in defense and the mode of action of antidepressants on generalized anxiety and panic disorders.
Central nervous system agents in medicinal chemistry 2010;10(3):207-17.
2010: Janaina Menezes Zanoveli; Roger L H Pobbe; Valquíria Camin de Bortoli; Milene C Carvalho; Marcus Lira Brandão; Hélio Zangrossi
Facilitation of 5-HT1A-mediated neurotransmission in dorsal periaqueductal grey matter accounts for the panicolytic-like effect of chronic fluoxetine.
The international journal of neuropsychopharmacology / official scientific journal of the Collegium Internationale Neuropsychopharmacologicum (CINP) 2010;13(8):1079-88.
2010: Roger L H Pobbe; Hélio Zangrossi
The lateral habenula regulates defensive behaviors through changes in 5-HT-mediated neurotransmission in the dorsal periaqueductal gray matter.
Neuroscience letters 2010;479(2):87-91.
2010: Plínio Cabrera Casarotto; Valquíria Camin de Bortoli; Fernando Morgan de Aguiar Corrêa; L B M Resstel; Hélio Zangrossi
Panicolytic-like effect of BDNF in the rat dorsal periaqueductal grey matter: the role of 5-HT and GABA.
The international journal of neuropsychopharmacology / official scientific journal of the Collegium Internationale Neuropsychopharmacologicum (CINP) 2010;13(5):573-82.
2009: Gislaine G Pelosi; Leonardo L B M Resstel; Vanessa P Soares; Hélio Zangrossi; Francisco Silveira Guimarães; F M A Corrêa
Anxiolytic-like effect of noradrenaline microinjection into the dorsal periaqueductal gray of rats.
Behavioural pharmacology 2009;20(3):252-9.
2008: Maria Adrielle Vicente; Hélio Zangrossi; Lucinéia dos Santos; Carlos Eduardo de Macedo; Telma Gonçalves C S Andrade
Involvement of median raphe nucleus 5-HT1A receptors in the regulation of generalized anxiety-related defensive behaviours in rats.
Neuroscience letters 2008;445(3):204-8.
2008: Roger L H Pobbe; Hélio Zangrossi
Involvement of the lateral habenula in the regulation of generalized anxiety- and panic-related defensive responses in rats.
Life sciences 2008;82(25-26):1256-61.
2008: Valquíria Camin de Bortoli; Regina Lúcia Nogueira; Hélio Zangrossi
Alprazolam potentiates the antiaversive effect induced by the activation of 5-HT(1A) and 5-HT (2A) receptors in the rat dorsal periaqueductal gray.
Psychopharmacology 2008;198(3):341-9.
2008: Milena de Barros Viana; Hélio Zangrossi; Gustavo Massaro Onusic
5-HT1A receptors of the lateral septum regulate inhibitory avoidance but not escape behavior in rats.
Pharmacology, biochemistry, and behavior 2008;89(3):360-6.
2008: S N Pinheiro; Cristina M Del-Ben; Hélio Zangrossi; Frederico G Graeff
Anxiolytic and panicolytic effects of escitalopram in the elevated T-maze.
Journal of psychopharmacology (Oxford, England) 2008;22(2):132-7.
2007: Cíntia Heloína Bueno; Hélio Zangrossi; Milena de Barros Viana
GABA/benzodiazepine receptors in the ventromedial hypothalamic nucleus regulate both anxiety and panic-related defensive responses in the elevated T-maze.
Brain research bulletin 2007;74(1-3):134-41.
2007: Leandro José Bertoglio; Valquíria Camin de Bortoli; Hélio Zangrossi
Cholecystokinin-2 receptors modulate freezing and escape behaviors evoked by the electrical stimulation of the rat dorsolateral periaqueductal gray.
Brain research 2007;1156():133-8.
2007: Simone H Pinheiro; Hélio Zangrossi; Cristina M Del-Ben; Frederico G Graeff
Elevated mazes as animal models of anxiety: effects of serotonergic agents.
Anais da Academia Brasileira de Ciências 2007;79(1):71-85.
2007: Janaina Menezes Zanoveli; Regina Lúcia Nogueira; Hélio Zangrossi
Enhanced reactivity of 5-HT1A receptors in the rat dorsal periaqueductal gray matter after chronic treatment with fluoxetine and sertraline: evidence from the elevated T-maze.
Neuropharmacology 2007;52(4):1188-95.
2006: Leandro José Bertoglio; Francisco Silveira Guimarães; Hélio Zangrossi
Lack of interaction between NMDA and cholecystokinin-2 receptor-mediated neurotransmission in the dorsolateral periaqueductal gray in the regulation of rat defensive behaviors.
Life sciences 2006;79(23):2238-44.
2006: Leandro José Bertoglio; Hélio Zangrossi
Involvement of dorsolateral periaqueductal gray N-methyl-D-aspartic acid glutamate receptors in the regulation of risk assessment and inhibitory avoidance behaviors in the rat elevated T-maze.
Behavioural pharmacology 2006;17(7):589-96.
2006: Leandro Pinto de Almeida; Patrício L Ramos; José Eduardo Pandossio; Jesus Landeira-Fernandez; Hélio Zangrossi; Regina Lúcia Nogueira
Prior electrical stimulation of dorsal periaqueductal grey matter or deep layers of the superior colliculus sensitizes rats to anxiety-like behaviors in the elevated T-maze test.
Behavioural brain research 2006;170(2):175-81.
2006: Valquíria Camin de Bortoli; Regina Lúcia Nogueira; Hélio Zangrossi
Effects of fluoxetine and buspirone on the panicolytic-like response induced by the activation of 5-HT1A and 5-HT2A receptors in the rat dorsal periaqueductal gray.
Psychopharmacology 2006;183(4):422-8.
2005: Roger L H Pobbe; Hélio Zangrossi
5-HT(1A) and 5-HT(2A) receptors in the rat dorsal periaqueductal gray mediate the antipanic-like effect induced by the stimulation of serotonergic neurons in the dorsal raphe nucleus.
Psychopharmacology 2005;183(3):314-21.
2005: Cíntia Heloína Bueno; Hélio Zangrossi; Milena B Viana
The inactivation of the basolateral nucleus of the rat amygdala has an anxiolytic effect in the elevated T-maze and light/dark transition tests.
Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas / Sociedade Brasileira de Biofísica ... [et al.] 2005;38(11):1697-701.
2005: Janaina Menezes Zanoveli; Regina Lúcia Nogueira; Hélio Zangrossi
Chronic imipramine treatment sensitizes 5-HT1A and 5-HT 2 A receptors in the dorsal periaqueductal gray matter: evidence from the elevated T-maze test of anxiety.
Behavioural pharmacology 2005;16(7):543-52.
2005: Leandro José Bertoglio; Hélio Zangrossi
Involvement of dorsolateral periaqueductal gray cholecystokinin-2 receptors in the regulation of a panic-related behavior in rats.
Brain research 2005;1059(1):46-51.
2005: Cíntia Heloína Bueno; Hélio Zangrossi; Regina Lúcia Nogueira; Vanessa P Soares; Milena B Viana
Panicolytic-like effect induced by the stimulation of GABAA and GABAB receptors in the dorsal periaqueductal grey of rats.
European journal of pharmacology 2005;516(3):239-46.
2005: Lucinéia Dos Santos; Telma G C S de Andrade; Hélio Zangrossi
Serotonergic neurons in the median raphe nucleus regulate inhibitory avoidance but not escape behavior in the rat elevated T-maze test of anxiety.
Psychopharmacology 2005;179(4):733-41.
2004: Janaina Menezes Zanoveli; Cristina Ferreira Netto; Francisco Silveira Guimarães; Hélio Zangrossi
Systemic and intra-dorsal periaqueductal gray injections of cholecystokinin sulfated octapeptide (CCK-8s) induce a panic-like response in rats submitted to the elevated T-maze.
Peptides 2004;25(11):1935-41.
2004: Salim Demétrio Jorge; Roger L H Pobbe; Vanessa de Paula Soares; Ana M De Oliveira; Hélio Zangrossi
Effects of sibutramine on anxiety-related behaviours in rats.
Pharmacological research : the official journal of the Italian Pharmacological Society 2004;50(5):517-22.
2004: Vanessa de Paula Soares; Hélio Zangrossi
Involvement of 5-HT1A and 5-HT2 receptors of the dorsal periaqueductal gray in the regulation of the defensive behaviors generated by the elevated T-maze.
Brain research bulletin 2004;64(2):181-8.
2004: Telma G C S Andrade; Carlos E A Macedo; Hélio Zangrossi; Frederico G Graeff
Anxiolytic-like effects of median raphe nucleus lesion in the elevated T-maze.
Behavioural brain research 2004;153(1):55-60.
2004: F A M de Souza; CARLA SANCHIS-SEGURA; Sandra Fukada; Valquíria Camin de Bortoli; Hélio Zangrossi; A M de Oliveira
Intracerebroventricular effects of angiotensin II on a step-through passive avoidance task in rats.
Neurobiology of learning and memory 2004;81(1):100-3.
2003: Selma Conceição Poltronieri; Hélio Zangrossi; Milena de Barros Viana
Antipanic-like effect of serotonin reuptake inhibitors in the elevated T-maze.
Behavioural brain research 2003;147(1-2):185-92.
2003: Janaina Menezes Zanoveli; Regina Lúcia Nogueira; Hélio Zangrossi
Serotonin in the dorsal periaqueductal gray modulates inhibitory avoidance and one-way escape behaviors in the elevated T-maze.
European journal of pharmacology 2003;473(2-3):153-61.
2003: Lígia Moreiras Sena; Cíntia Heloína Bueno; Roger L H Pobbe; Telma G C S Andrade; Hélio Zangrossi; Milena B Viana
The dorsal raphe nucleus exerts opposed control on generalized anxiety and panic-related defensive responses in rats.
Behavioural brain research 2003;142(1-2):125-33.
2003: Christiana V A Strauss; Silvia S Maisonnette; Norberto C Coimbra; Hélio Zangrossi
Effects of N-methyl-D-aspartate-induced amygdala lesion in rats submitted to the elevated T-maze test of anxiety.
Physiology & behavior 2003;78(1):157-63.
2002: Cláudia A Jacob; Alfredo H C L Cabral; Leandro P Almeida; Valeska Magierek; Patrício L Ramos; Janaina Menezes Zanoveli; Jesus Landeira-Fernandez; Hélio Zangrossi; Regina Lúcia Nogueira
Chronic imipramine enhances 5-HT(1A) and 5-HT(2) receptors-mediated inhibition of panic-like behavior in the rat dorsal periaqueductal gray.
Pharmacology, biochemistry, and behavior 2002;72(4):761-6.
2002: Otávio A Flausino; Hélio Zangrossi; Joao Vinicius Salgado; Milena B Viana
Effects of acute and chronic treatment with Hypericum perforatum L. (LI 160) on different anxiety-related responses in rats.
Pharmacology, biochemistry, and behavior 2002;71(1-2):251-7.
2001: Hélio Zangrossi; Milena B Viana; Janaina Menezes Zanoveli; Cíntia Heloína Bueno; Regina Lúcia Nogueira; Frederico G Graeff
Serotonergic regulation of inhibitory avoidance and one-way escape in the rat elevated T-maze.
Neuroscience and biobehavioral reviews 2001;25(7-8):637-45.
2001: MC Silveira; Hélio Zangrossi; M de Barros Viana; R Silveira; Frederico G Graeff
Differential expression of Fos protein in the rat brain induced by performance of avoidance or escape in the elevated T-maze.
Behavioural brain research 2001;126(1-2):13-21.
2000: R C Teixeira; Hélio Zangrossi; Frederico G Graeff
Behavioral effects of acute and chronic imipramine in the elevated T-maze model of anxiety.
Pharmacology, biochemistry, and behavior 2000;65(4):571-6.
1999: Hélio Zangrossi; Milena B Viana; Frederico G Graeff
Anxiolytic effect of intra-amygdala injection of midazolam and 8-hydroxy-2-(di-n-propylamino)tetralin in the elevated T-maze.
European journal of pharmacology 1999;369(3):267-70.
1998: Frederico G Graeff; C F Netto; Hélio Zangrossi
The elevated T-maze as an experimental model of anxiety.
Neuroscience and biobehavioral reviews 1998;23(2):237-46.
1997: Hélio Zangrossi; Frederico G Graeff
Behavioral validation of the elevated T-maze, a new animal model of anxiety.
Brain research bulletin 1997;44(1):1-5.
1996: MC Scorza; Miguel Reyes-Parada; R Silveira; Haydée Viola; Jorge H Medina; M B Viana; Hélio Zangrossi; Frederico G Graeff
Behavioral effects of the putative anxiolytic (+/-)-1-(2,5-dimethoxy-4-ethylthiophenyl)-2-aminopropane (ALEPH-2) in rats and mice.
Pharmacology, biochemistry, and behavior 1996;54(2):355-61.
1994: Hélio Zangrossi; Sandra E File
Habituation and generalization of phobic responses to cat odor.
Brain research bulletin 1994;33(2):189-94.
1994: Sandra E File; Hélio Zangrossi; F L Sanders; P S Mabbutt
Raised corticosterone in the rat after exposure to the elevated plus-maze.
Psychopharmacology 1994;113(3-4):543-6.
1993: Sandra E File; Hélio Zangrossi; F L Sanders; P S Mabbutt
Dissociation between behavioral and corticosterone responses on repeated exposures to cat odor.
Physiology & behavior 1993;54(6):1109-11.
1993: Sandra E File; Hélio Zangrossi; nick andrews
Novel environment and cat odor change GABA and 5-HT release and uptake in the rat.
Pharmacology, biochemistry, and behavior 1993;45(4):931-4.
1993: nick andrews; Nicholas M Barnes; L J Steward; K E West; J Cunningham; P Y Wu; Hélio Zangrossi; Sandra E File
A comparison of rat brain amino acid and monoamine content in diazepam withdrawal and after exposure to a phobic stimulus.
British journal of pharmacology 1993;109(1):171-4.
1993: Sandra E File; Hélio Zangrossi; nick andrews
Social interaction and elevated plus-maze tests: changes in release and uptake of 5-HT and GABA.
Neuropharmacology 1993;32(3):217-21.
1993: Sandra E File; Hélio Zangrossi; M Viana; Frederico G Graeff
Trial 2 in the elevated plus-maze: a different form of fear?
Psychopharmacology 1993;111(4):491-4.
1993: Sandra E File; Hélio Zangrossi
"One-trial tolerance" to the anxiolytic actions of benzodiazepines in the elevated plus-maze, or the development of a phobic state?
Psychopharmacology 1993;110(1-2):240-4.
1992: Hélio Zangrossi; Sandra E File
Chlordiazepoxide reduces the generalised anxiety, but not the direct responses, of rats exposed to cat odor.
Pharmacology, biochemistry, and behavior 1992;43(4):1195-200.
1992: Hélio Zangrossi; Sandra E File
Behavioral consequences in animal tests of anxiety and exploration of exposure to cat odor.
Brain research bulletin 1992;29(3-4):381-8.
1992: Sandra E File; nick andrews; P Y Wu; A Zharkovsky; Hélio Zangrossi
Modification of chlordiazepoxide's behavioural and neurochemical effects by handling and plus-maze experience.
European journal of pharmacology 1992;218(1):9-14.
1992: Hélio Zangrossi; J R Leite; Frederico G Graeff
Anxiolytic effect of carbamazepine in the elevated plus-maze: possible role of adenosine.
Psychopharmacology 1992;106(1):85-9.