ELIZA

return kwic search for expression out of >500 occurrences
731925 occurrences (No.6 in the rank) during 5 years in the PubMed. [cache]

474) We found that single injection of MK-801 (0.1 mg/kg) induced gradual and long-lasting increases of the HPC-mPFC response, which shares the common expression mechanisms with long-term potentiation (LTP).

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PMID:24304584 DOI:10.1093/cercor/bht329

2015 Cerebral cortex (New York, N.Y. : 1991)

* Modulation of hippocampus-prefrontal cortex synaptic transmission and disruption of executive cognitive functions by MK-801.

- Noncompetitive N-methyl-d-aspartate receptor antagonists such as phencyclidine and MK-801 are known to impair cognitive function in rodents and humans, and serve as a useful tool to study the cellular basis for pathogenesis of schizophrenia cognitive symptoms. In the present study, we tested in rats the effect of MK-801 on ventral hippocampus (HPC)-medial prefrontal cortex (mPFC) synaptic transmission and the performance in 2 cognitive tasks. We found that single injection of MK-801 (0.1 mg/kg) induced gradual and long-lasting increases of the HPC-mPFC response, which shares the common expression mechanisms with long-term potentiation (LTP). But unlike LTP, its induction required no enhanced or synchronized synaptic inputs, suggesting aberrant characteristics. In parallel, rats injected with MK-801 showed impairments of mPFC-dependent cognitive flexibility and HPC-mPFC pathway-dependent spatial working memory. The effects of MK-801 on HPC-mPFC responses and spatial working memory decayed in parallel within 24 h. Moreover, the therapeutically important subtype 2/3 metabotropic glutamate receptor agonist LY379268, which blocked MK-801-induced potentiation, ameliorated the MK-801-induced impairment of spatial working memory. Our results show a novel form of use-independent long-lasting potentiation in HPC-mPFC pathway induced by MK-801, which is associated with impairment of HPC-mPFC projection-dependent cognitive function.

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(1)183 of	(11)7 is	(21)3 indicating	(31)2 level,
(2)50 in	(12)6 analysis	(22)3 on	(32)2 pattern
(3)28 levels	(13)4 at	(23)3 via	(33)2 profiling
(4)25 and	(14)4 profile	(24)2 alkaline	(34)2 regulation
(5)23 was	(15)4 through	(25)2 between	(35)2 that
(6)21 null	(16)4 were	(26)2 but	(36)2 whereas
(7)11 level	(17)3 are	(27)2 cell	(37)2 which
(8)10 patterns	(18)3 changes	(28)2 during	(38)2 with
(9)8 profiles	(19)3 data	(29)2 from
(10)7 by	(20)3 for	(30)2 increased

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--- WordNet output for expression --- =>表現すること, 式, 表現, 表示, 言い回し, 表現法, 表情 Overview of noun expression The noun expression has 9 senses (first 6 from tagged texts) 1. (23) expression, look, aspect, facial expression, face -- (the feelings expressed on a person's face; "a sad expression"; "a look of triumph"; "an angry face") 2. (18) expression, manifestation, reflection, reflexion -- (expression without words; "tears are an expression of grief"; "the pulse is a reflection of the heart's condition") 3. (15) expression, verbal expression, verbalism -- (the communication (in speech or writing) of your beliefs or opinions; "expressions of good will"; "he helped me find verbal expression for my ideas"; "the idea was immediate but the verbalism took hours") 4. (5) saying, expression, locution -- (a word or phrase that particular people use in particular situations; "pardon the expression") 5. (4) formulation, expression -- (the style of expressing yourself; "he suggested a better formulation"; "his manner of expression showed how much he cared") 6. (4) formula, expression -- (a group of symbols that make a mathematical statement) 7. expression -- ((genetics) the process of expressing a gene) 8. construction, grammatical construction, expression -- (a group of words that form a constituent of a sentence and are considered as a single unit; "I concluded from his awkward constructions that he was a foreigner") 9. expression -- (the act of forcing something out by squeezing or pressing; "the expression of milk from her breast") --- WordNet end ---