Document Detail


Development of tyrosine hydroxylase-like immunoreactive structures in the chick retina: three-dimensional analysis.
MedLine Citation:
PMID:  1677948     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study was designed to investigate the developmental profile of tyrosine hydroxylase-like immunoreactive structures in the chick retina in both frozen sections and wholemount preparations. In frozen sections, cells with tyrosine hydroxylase-like immunoreactivity were first detected in 10 to 15 cell rows from the innermost part of the inner nuclear layer on embryonic or incubation day 11. They were seen in the inner cell rows of the inner nuclear layer during later periods; by embryonic day 18, the immunoreactive cells were located 1 to 3 cell rows outward from the innermost part of the inner nuclear layer where mature immunoreactive cells mainly exist. The immunoreactive cells began to give rise to processes on embryonic day 13. The processes (possibly dendrites) gradually increased in number and intensity in sublayers 1 and 4 of the inner plexiform layer during prenatal life. Several days after hatching, an abrupt increase in immunoreactive processes was noted in sublayer 1 but not in sublayer 4. On the sixth postnatal day, retinal neural elements immunoreactive for tyrosine hydroxylase seemed to exhibit a distribution pattern similar to that of the adult chick. In wholemount retinas, immunoreactive cells were initially detected at the earliest stage of embryonic day 12 in a small circle termed "starting area" occupying the ventral part of the temporal retinal field. The closer to the "starting area," the earlier the retinal area began to express many immunoreactive cells. Thus tyrosine hydroxylase cell density in individual retinal areas, as represented by cell number per square millimeter, peaked in different developmental periods varying from embryonic day 12 to day 14. At this stage, immunoreactive cells were arranged irregularly in the retina. Thereafter, the cell density as well as total cell number gradually declined and reached a plateau around embryonic day 20 when tyrosine hydroxylase-like immunoreactive cells, like those in the mature retina, showed an even distribution throughout the retina.(ABSTRACT TRUNCATED AT 400 WORDS)
Authors:
H Kagami; H Sakai; K Uryu; T Kaneda; M Sakanaka
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of comparative neurology     Volume:  308     ISSN:  0021-9967     ISO Abbreviation:  J. Comp. Neurol.     Publication Date:  1991 Jun 
Date Detail:
Created Date:  1991-09-11     Completed Date:  1991-09-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0406041     Medline TA:  J Comp Neurol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  356-70     Citation Subset:  IM    
Affiliation:
Department of Anatomy, Nagoya University School of Medicine, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Chick Embryo / metabolism*
Immunohistochemistry
Retina / enzymology*,  immunology
Tyrosine 3-Monooxygenase / analysis*,  immunology
Chemical
Reg. No./Substance:
EC 1.14.16.2/Tyrosine 3-Monooxygenase

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