Tracheal agenesis develops when the first outgrowth of the lung bud is aborted early during development and the larynx or the very proximal part of the trachea stays atretic.
First, outgrowth of cellular extensions, one aspect of neuronal differentiation, can be induced by treating NB cells in vitro with exogenous gangliosides, and the CbG species GT1b and GQ1b have been repeatedly described as the two most potent ganglioside molecules with differentiating properties (Tsuji et al, 1983; Leskawa and Hogan, 1985).
Second, neurite outgrowth in experimental conditions was compared with outgrowth from neurons of the same genotype under control conditions.
The first, an outgrowth of the "boys don't cry" school of thought, maintains that work is work and not a place for much display of emotion.
Government supporters and opponents blamed each other for the early afternoon attack, the first violent outgrowth of the protracted unrest to occur during daylight hours, authorities said.
Fourth, the outgrowths continue to maintain the same biological characteristics, such as tumor latency, histopathological characteristics, and molecular profiles, over multiple serial transplant generations [ 2, 3].
Nevertheless, Kordon and Smith [ 1] decided to test this experimentally by transplanting limiting numbers of cells derived from third-generation outgrowths into cleared fat pads.
In the second experiment, the outgrowth of fibroblasts was confirmed in the NSS, 100_NSS, 0_DW, and 100_DW; however, no outgrowth of fibroblasts was observed in the 200_NSS and 200_DW.
We considered two possible explanations for our observations that radiation promoted vHMEC outgrowth; first that radiation induced additional vHMEC and second, that radiation accelerated the selection of pre-existing vHMEC, consistent with studies by Holst et al. [ 29] demonstrating their existence in human breast tissues.
If it contains between one-half and approx. four-fifths of the initial PM, the cut edge forms callus-like outgrowth first, followed by regeneration of the root meristem from the outgrowth periphery.
