Publication Date:
2005-10-01
Description:
Monocular deprivation normally alters ocular dominance in the visual cortex only during a postnatal critical period (20 to 32 days postnatal in mice). We find that mutations in the Nogo-66 receptor (NgR) affect cessation of ocular dominance plasticity. In NgR-/- mice, plasticity during the critical period is normal, but it continues abnormally such that ocular dominance at 45 or 120 days postnatal is subject to the same plasticity as at juvenile ages. Thus, physiological NgR signaling from myelin-derived Nogo, MAG, and OMgp consolidates the neural circuitry established during experience-dependent plasticity. After pathological trauma, similar NgR signaling limits functional recovery and axonal regeneration.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2856689/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2856689/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGee, Aaron W -- Yang, Yupeng -- Fischer, Quentin S -- Daw, Nigel W -- Strittmatter, Stephen M -- R01 NS039962/NS/NINDS NIH HHS/ -- R01 NS039962-10/NS/NINDS NIH HHS/ -- R01 NS042304/NS/NINDS NIH HHS/ -- R01 NS042304-08/NS/NINDS NIH HHS/ -- R01 NS056485/NS/NINDS NIH HHS/ -- R01 NS056485-04/NS/NINDS NIH HHS/ -- R37 NS033020/NS/NINDS NIH HHS/ -- R37 NS033020-15/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2005 Sep 30;309(5744):2222-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Yale University School of Medicine, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16195464" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Chondroitin Sulfate Proteoglycans/metabolism
;
Darkness
;
Dominance, Ocular/*physiology
;
Electrophysiology
;
GPI-Linked Proteins
;
Gene Targeting
;
Mice
;
Mice, Inbred C57BL
;
Mutation
;
Myelin Basic Protein/metabolism
;
Myelin Proteins/genetics/metabolism/*physiology
;
Myelin Sheath/*physiology
;
Myelin-Associated Glycoprotein/metabolism
;
Neurites/physiology
;
Neuronal Plasticity/*physiology
;
Neurons/*physiology
;
Photic Stimulation
;
Receptors, Cell Surface/genetics/*physiology
;
Signal Transduction
;
Visual Cortex/cytology/growth & development/*physiology
;
gamma-Aminobutyric Acid/physiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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