Vanusa Maria Nascimento Bispo Lanziotti
Universidade Federal do Rio Grande do Sul
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Behavioural Brain Research | 2007
Felipe Diehl; Lucas Fürstenau de Oliveira; Gonzalo Sánchez; Clarissa Camboim; Lucas de Oliveira Alvares; Vanusa Maria Nascimento Bispo Lanziotti; Carlos Cerveñansky; Edgar Kornisiuk; Diana Jerusalinky; Jorge Alberto Quillfeldt
The cholinergic system plays a crucial role in learning and memory. Modulatory mechanisms of this system in the acquisition and consolidation processes have been extensively studied, but their participation in the memory retrieval process is still poorly understood. Conventional pharmacological agents are not highly selective for particular muscarinic acetylcholine receptor subtypes. Muscarinic toxins (MTs) that are highly selective for muscarinic receptors were extracted from the venom of the mamba snake, like the toxin MT3, selective for the M4 receptor subtype. These toxins are useful tools in studies of the specific functions of the M4 mediated transmission. The M4 receptor selective antagonist MT3, given into the dorsal hippocampus before the test, have enhanced the memory retrieval of an inhibitory avoidance task in rats. MT3 had no effect in the habituation to a new environment, including basic motor parameters, meaning that the effect in he inhibitory avoidance is purely cognitive. Our results suggest an endogenous negative modulation of the cholinergic muscarinic system upon the retrieval of previously consolidated aversive memories, hereby shown by the facilitatory effect of MT3.
Neurobiology of Learning and Memory | 2005
Lucas de Oliveira Alvares; Lucas Fürstenau de Oliveira; Clarissa Camboim; Felipe Diehl; Bruna Pasqualini Genro; Vanusa Maria Nascimento Bispo Lanziotti; Jorge Alberto Quillfeldt
Archive | 2006
Naíta Roman Bohn; Vanusa Maria Nascimento Bispo Lanziotti; Felipe Diehl; Lucas de Oliveira Alvares; Lucas Fürstenau de Oliveira; Clarissa Camboim Silva de Almeida; Bruna Pasqualini Genro; Thiago Pereira Henriques; Jorge Alberto Quillfeldt
Archive | 2005
Thiago Pereira Henriques; Felipe Diehl; Lucas Fürstenau de Oliveira; Clarissa Camboim Silva de Almeida; Bruna Pasqualini Genro; Lucas de Oliveira Alvares; Vanusa Maria Nascimento Bispo Lanziotti; Carlos Cerveñansky; Edgar Kornisiuk; Gonzalo Sánchez; Diana Jerusalinsky
Archive | 2004
Clarissa Camboim Silva de Almeida; Lucas Fürstenau de Oliveira; Bruna Pasqualini Genro; Felipe Diehl; Lucas de Oliveira Alvares; Vanusa Maria Nascimento Bispo Lanziotti; Thiago Pereira Henriques; Tadeu Mello e Souza; Carlos Alberto Saraiva Goncalves
Archive | 2004
Bruna Pasqualini Genro; Vanusa Maria Nascimento Bispo Lanziotti; Thiago Pereira Henriques; Lucas de Oliveira Alvares; Felipe Diehl; Lucas Fürstenau de Oliveira; Clarissa Camboim Silva de Almeida
Archive | 2004
Lucas de Oliveira Alvares; Bruna Pasqualini Genro; Felipe Diehl; Vanusa Maria Nascimento Bispo Lanziotti; Lucas Fürstenau de Oliveira; Clarissa Camboim Silva de Almeida; Thiago Pereira Henriques
Archive | 2004
Thiago Pereira Henriques; Vanusa Maria Nascimento Bispo Lanziotti; Felipe Diehl; Lucas Fürstenau de Oliveira; Clarissa Camboim Silva de Almeida; Bruna Pasqualini Genro; Lucas de Oliveira Alvares
Archive | 2003
Bruna Pasqualini Genro; Lucas Fürstenau de Oliveira; Clarissa Camboim Silva de Almeida; Felipe Diehl; Lucas de Oliveira Alveres; Vanusa Maria Nascimento Bispo Lanziotti; Thiago Pereira Henriques; Tadeu Mello e Souza; Carlos Alberto Saraiva Goncalves
Archive | 2003
Felipe Diehl; Lucas Fürstenau de Oliveira; Gonzalo Sánchez; Clarissa Camboim Silva de Almeida; Bruna Pasqualini Genro; Lucas de Oliveira Alvares; Vanusa Maria Nascimento Bispo Lanziotti; Carlos Cerveñansky; Edgar Kornisiuk; Diana Jerusalinsky