ELIZA

return kwic search for molecular out of >500 occurrences
333489 occurrences (No.56 in the rank) during 5 years in the PubMed. [cache]

102) Our studies provide a molecular mechanism for understanding the plasticity of actin rearrangement-associated synaptic structure during memory extinction.

--- ABSTRACT ---

PMID:24337340 DOI:10.1007/s00429-013-0685-5

2015 Brain structure & function

* Myosin II regulates actin rearrangement-related structural synaptic plasticity during conditioned taste aversion memory extinction.

- Similar to memory formation, memory extinction is also a new learning process that requires synaptic plasticity. Actin rearrangement is fundamental for synaptic plasticity, however, whether actin rearrangement in the infralimbic cortex (IL) plays a role in memory extinction, as well as the mechanisms underlying it, remains unclear. Here, using a conditioned taste aversion (CTA) paradigm, we demonstrated increased synaptic density and actin rearrangement in the IL during the extinction of CTA. Targeted infusion of an actin rearrangement inhibitor, cytochalasin D, into the IL impaired memory extinction and de novo synapse formation. Notably, we also found increased myosin II phosphorylation in the IL during the extinction of CTA. Microinfusion of a specific inhibitor of the myosin II ATPase, blebbistatin (Blebb), into the IL impaired memory extinction as well as the related actin rearrangement and changes in synaptic density. Moreover, the extinction deficit and the reduction of synaptic density induced by Blebb could be rescued by the actin polymerization stabilizer jasplakinolide (Jasp), suggesting that myosin II acts via actin filament polymerization to stabilize synaptic plasticity during the extinction of CTA. Taken together, we conclude that myosin II may regulate the plasticity of actin-related synaptic structure during memory extinction. Our studies provide a molecular mechanism for understanding the plasticity of actin rearrangement-associated synaptic structure during memory extinction.

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(1)52 mechanisms	(19)5 docking	(37)3 recognition	(55)2 heparin
(2)26 weight	(20)5 information	(38)3 serotyping	(56)2 identification
(3)18 data	(21)5 methods	(39)3 sieve	(57)2 knowledge
(4)18 mechanism	(22)5 modeling	(40)3 structure	(58)2 mass
(5)16 dynamics	(23)5 phylogenetic	(41)3 techniques	(59)2 mechanisms,
(6)15 and	(24)5 targets	(42)3 variance	(60)2 or
(7)10 analysis	(25)4 diagnosis	(43)2 Dynamics	(61)2 oxygen
(8)10 basis	(26)4 interactions	(44)2 approach	(62)2 perspectives
(9)8 characterization	(27)4 level	(45)2 biological	(63)2 phenotypic
(10)7 epidemiology	(28)4 level,	(46)2 classification	(64)2 phylogenies
(11)7 genetic	(29)4 responses	(47)2 clock	(65)2 probes
(12)7 imaging	(30)4 target	(48)2 dating	(66)2 profiles
(13)6 biology	(31)3 evolution	(49)2 details	(67)2 subtype
(14)6 changes	(32)3 features	(50)2 diffusion	(68)2 therapies
(15)6 markers	(33)3 levels	(51)2 effects	(69)2 underpinnings
(16)6 pathways	(34)3 marker	(52)2 events
(17)5 analyses	(35)3 medicine	(53)2 evidence
(18)5 characteristics	(36)3 orbital	(54)2 genetics

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--- WordNet output for molecular --- =>分子の Overview of adj molecular The adj molecular has 2 senses (first 1 from tagged texts) 1. (6) molecular -- (relating to or produced by or consisting of molecules; "molecular structure"; "molecular oxygen"; "molecular weight is the sum of all the atoms in a molecule") 2. molecular -- (relating to simple or elementary organization; "proceed by more and more detailed analysis to the molecular facts of perception"--G.A. Miller) --- WordNet end ---