Unconditioned- and Conditioned- Stimuli Induce Differential Memory Reconsolidation and β-AR-Dependent CREB Activation.
Unconditioned- and Conditioned- Stimuli Induce Differential Memory Reconsolidation and β-AR-Dependent CREB Activation.
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非条件刺激和条件刺激诱导差异记忆再巩固和β-AR依赖性CREB激活
DOI:
10.3389/fncir.2017.00053
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发表时间:
2017
影响因子:
3.5
通讯作者:
Ma L
中科院分区:
文献类型:
--
作者:
Huang B;Zhu H;Zhou Y;Liu X;Ma L
Consolidated long-term fear memories become labile and reconsolidated upon retrieval by the presentation of conditioned stimulus (CS) or unconditioned stimulus (US). Whether CS-retrieval or US-retrieval will trigger different memory reconsolidation processes is unknown. In this study, we introduced a sequential fear conditioning paradigm in which footshock (FS) was paired with two distinct sounds (CS-A and CS-B). The treatment with propranolol, a β-adrenergic receptor (β-AR) antagonist, after US (FS)-retrieval impaired freezing behavior evoked by either CS-A or CS-B. Betaxolol, a selective β1-AR antagonist, showed similar effects. However, propranolol treatment after retrieval by one CS (e.g., CS-A) only inhibited freezing behavior evoked by the same CS (i.e., CS-A), not the other CS (CS-B). These data suggest that β-AR is critically involved in reconsolidation of fear memory triggered by US- and CS-retrieval, whereas β-AR blockade after US-retrieval disrupts more CS-US associations than CS-retrieval does. Furthermore, significant CREB activation in almost the whole amygdala and hippocampus was observed after US-retrieval, but CS-retrieval only stimulated CREB activation in the lateral amygdala and the CA3 of hippocampus. In addition, propranolol treatment suppressed memory retrieval-induced CREB activation. These data indicate that US-retrieval activates more memory traces than CS-retrieval does, leading to memory reconsolidation of more CS-US associations.
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影响因子:
2.7
作者:
Berlau, Daniel J.;McGaugh, James L.
通讯作者:
McGaugh, James L.
影响因子:
5.3
作者:
Brami-Cherrier, K;Valjent, E;Caboche, J
通讯作者:
Caboche, J
DOI:
10.1101/lm.031609.113
发表时间:
2013-11-19
期刊:
Learning & memory (Cold Spring Harbor, N.Y.)
影响因子:
--
作者:
Debiec J;Diaz-Mataix L;Bush DE;Doyère V;LeDoux JE
通讯作者:
LeDoux JE
影响因子:
3.5
作者:
Goosens, KA;Maren, S
通讯作者:
Maren, S
影响因子:
2.7
作者:
Maren, S
通讯作者:
Maren, S