Abstract:
:A two-site radio-immunoassay for beta NGF demonstrated 5-10 pg of NGF in the normal, adult rat iris. Ciliarectomy or sympathectomy did not significantly alter the amount of NGF after 10 days. However, denervation including all sensory axons (stereotactic lesion distal to the trigeminal ganglion) increased the level to about 100 pg of NGF. Total denervation resulting from homologous transplantation of the iris gave a similar increase after only 2 days. Fibre outgrowth responses evoked by corresponding iris explants in an NGF bioassay supported the results and suggested in addition that sympathetic denervation may cause a moderate transient increase in NGF after 3 days. It seems that sensory nerves in particular influence the level of NGF in a terminal field, either by a high capacity for uptake and removal of NGF or by exerting a negative feed-back on the production or processing of this growth factor.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Ebendal T,Olson L,Seiger Adoi
10.1016/0014-4827(83)90155-6subject
Has Abstractpub_date
1983-10-15 00:00:00pages
311-7issue
2eissn
0014-4827issn
1090-2422journal_volume
148pub_type
杂志文章abstract::Periosteal cells were enzymatically liberated from the tibiae of young chicks, introduced into cell culture, and allowed to reach confluence. The morphology of the cells gave the impression of a relatively homogeneous population of fibroblast-like cells. These cultured cells did not overtly express osteogenic or chond...
journal_title:Experimental cell research
pub_type: 杂志文章
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journal_title:Experimental cell research
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journal_title:Experimental cell research
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journal_title:Experimental cell research
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doi:10.1016/j.yexcr.2011.10.013
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(83)90436-6
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1996.0308
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pub_type: 杂志文章
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