| Morphological changes of dorsal root ganglion cells in the process-forming period. | |
| | |
MedLine Citation:
|
PMID: 3615909 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Rat DRG cells at early stages of development were observed to clarify the forming process from bipolar to pseudounipolar cells. Dissociated DRG cells in vivo and in vitro were observed by light and scanning electron microscopy. The percentage of cell types in the 13th prenatal to the 1-day postnatal DRG in vivo were investigated. It is noteworthy that about 5% of ganglion cells were still bipolar in the 1-day postnatal rat. When dissociated DRG cells were seen in long-term culture, completely unipolarized DRG cells were revealed by silver-impregnation. But when fibroblast growth was suppressed in long-term culture, no pseudounipolar cells were observed. Dorsal root ganglia on day 14 of gestation were organ cultured. The incidence of pseudounipolar cell appearance was estimated time-sequentially by silver-impregnations (Table 2). Unipolar cells increased to about 80% at the 22nd day of culture. Cultured DRG cells were examined transmission electron microscopy and the morphological change from bipolar cells to pseudounipolar cells was investigated. No evidence was obtained which showed that the processes of bipolar cells fuse to make a stem process. In conclusion, observations of developing DRG cells by light and electron microscopy revealed that the stem process of the pseudounipolar DRG cells is derived from the elongated cytoplasm of the cell body and is not derived from the fusion of the opposite two processes. |
| | |
Authors:
|
K Takahashi; T Ninomiya |
Related Documents
:
|
9671469 - Mapping the polarity of changes that occur in interrupted cag repeat tracts in yeast. 3977089 - The relation of nucleolus diameter to cell body diameter in mammalian dorsal root gangl... 9042539 - Cell death in the inner ear associated with aging is apoptosis? 9390819 - Production of conditionally immortalised cell lines from a transgenic mouse. 6607269 - Hyperplasia in the spinal sensory system of the frog. i. plasticity in the most caudal ... 1329199 - The cytosensor microphysiometer: biological applications of silicon technology. 10623419 - Calcium levels during cell cycle correlate with cell fate of dictyostelium discoideum. 12857869 - Beta-catenin regulation during the cell cycle: implications in g2/m and apoptosis. 19584239 - Oncogenic transformation confers a selective susceptibility to the combined suppression... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Progress in neurobiology Volume: 29 ISSN: 0301-0082 ISO Abbreviation: Prog. Neurobiol. Publication Date: 1987 |
Date Detail:
|
Created Date: 1987-09-01 Completed Date: 1987-09-01 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0370121 Medline TA: Prog Neurobiol Country: ENGLAND |
Other Details:
|
Languages: eng Pagination: 393-410 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Cell Differentiation Ganglia, Spinal / cytology* Rats Rats, Inbred Strains |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Surface coil assembly with switchable field of view.
Next Document: Age as a prognostic factor in carcinoma of the cervix.