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290904 occurrences (No.84 in the rank) during 5 years in the PubMed. [no cache] 500 found

93) We found that dopamine content was significantly reduced in the striatum of Mecp2 null mice.

--- ABSTRACT ---

PMID:24218106 DOI:10.1007/s00429-013-0664-x

2015 Brain structure & function

* MeCP2-mediated alterations of striatal features accompany psychomotor deficits in a mouse model of Rett syndrome.

- Rett Syndrome (RTT) is a neurodevelopmental disorder caused by mutations in the methyl-CpG-binding protein 2 (MECP2) gene. Affected individuals develop motor deficits including stereotypic hand movements, impaired motor learning and difficulties with movement. To understand the neural mechanisms of motor deficits in RTT, we characterized the molecular and cellular phenotypes in the striatum, the major input nucleus of the basal ganglia that controls psychomotor function, in mice carrying a null allele of Mecp2. These mice showed significant hypoactivity associated with impaired motor coordination and motor skill learning. We found that dopamine content was significantly reduced in the striatum of Mecp2 null mice. Reduced dopamine was accompanied by down-regulation of tyrosine hydroxylase and up-regulation of dopamine D2 receptors, particularly in the rostral striatum. We also observed that loss of MeCP2 induced compartment-specific alterations in the striatum, including reduced expression of μ-opioid receptors in the striosomes and increased number of calbindin-positive neurons in the striatal matrix. The total number of parvalbumin-positive interneurons and their dendritic arborization were also significantly increased in the striatum of Mecp2 null mice. Together, our findings support that MeCP2 regulates a unique set of genes critical for modulating motor output of the striatum, and that aberrant structure and function of the striatum due to MeCP2 deficiency may underlie the motor deficits in RTT.

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(1)66 the	(12)4 activity	(24)2 among	(35)2 interhemispheric
(2)30 in	(13)4 both	(25)2 availability	(36)2 it
(3)23 by	(14)4 cell	(26)2 blood	(37)2 likelihood
(4)13 null	(16)3 ability	(27)2 but	(38)2 number
(5)13 to	(17)3 after	(28)2 compared	(39)2 rates
(6)10 glutathione	(18)3 binding	(29)2 effortful	(40)2 stem
(7)8 and	(19)3 or	(30)2 ejection	(41)2 total
(8)8 expression	(20)3 risk	(31)2 following	(42)2 tumor
(9)5 levels	(21)3 sensitivity	(32)2 from	(43)2 which
(10)5 significantly	(22)2 (P	(33)2 glutathione,
(11)4 PGE2	(23)2 BRCA-1	(34)2 hippocampal

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--- WordNet output for reduced --- =>貧しい暮らし, 落ちぶれた生活 Overview of verb reduce The verb reduce has 20 senses (first 11 from tagged texts) 1. (102) reduce, cut down, cut back, trim, trim down, trim back, cut, bring down -- (cut down on; make a reduction in; "reduce your daily fat intake"; "The employer wants to cut back health benefits") 2. (9) reduce -- (make less complex; "reduce a problem to a single question") 3. (5) reduce -- (bring to humbler or weaker state or condition; "He reduced the population to slavery") 4. (3) reduce -- (simplify the form of a mathematical equation of expression by substituting one term for another) 5. (3) reduce -- (lower in grade or rank or force somebody into an undignified situation; "She reduced her niece to a servant") 6. (3) reduce, come down, boil down -- (be the essential element; "The proposal boils down to a compromise") 7. (2) shrink, reduce -- (reduce in size; reduce physically; "Hot water will shrink the sweater"; "Can you shrink this image?") 8. (1) reduce -- (lessen and make more modest; "reduce one's standard of living") 9. (1) reduce, scale down -- (make smaller; "reduce an image") 10. (1) deoxidize, deoxidise, reduce -- (to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons) 11. (1) reduce, tighten -- (narrow or limit; "reduce the influx of foreigners") 12. repress, quash, keep down, subdue, subjugate, reduce -- (put down by force or intimidation; "The government quashes any attempt of an uprising"; "China keeps down her dissidents very efficiently"; "The rich landowners subjugated the peasants working the land") 13. reduce -- (undergo meiosis; "The cells reduce") 14. reduce -- (reposition (a broken bone after surgery) back to its normal site) 15. reduce -- (destress and thus weaken a sound when pronouncing it) 16. abridge, foreshorten, abbreviate, shorten, cut, contract, reduce -- (reduce in scope while retaining essential elements; "The manuscript must be shortened") 17. boil down, reduce, decoct, concentrate -- (be cooked until very little liquid is left; "The sauce should reduce to one cup") 18. reduce, boil down, concentrate -- (cook until very little liquid is left; "The cook reduced the sauce by boiling it for a long time") 19. dilute, thin, thin out, reduce, cut -- (lessen the strength or flavor of a solution or mixture; "cut bourbon") 20. reduce, melt off, lose weight, slim, slenderize, thin, slim down -- (take off weight) Overview of adj reduced The adj reduced has 2 senses (first 2 from tagged texts) 1. (6) decreased, reduced -- (made less in size or amount or degree) 2. (1) reduced, rock-bottom -- (well below normal (especially in price)) --- WordNet end ---