Experimental study on the significance of abnormal cardiac looping for the development of cardiovascular anomalies in neural crest-ablated chick embryos

1996 ◽  
Vol 194 (3) ◽  
Author(s):  
J�rg M�nner ◽  
Wolfgang Seidl ◽  
Gerd Steding
Development ◽  
1980 ◽  
Vol 57 (1) ◽  
pp. 71-78
Author(s):  
N. B. Levy ◽  
Ann Andrew ◽  
B. B. Rawdon ◽  
Beverley Kramer

Two- to ten-somite chick embryos were studied in order to ascertain whether, as has been proposed, there exists a ‘ventral neural ridge’ which gives rise to the hypophyseal (Rathke's) pouch. Serial sections and stereo-microscopy were used. The neural ridges arch around the rostral end of the embryo onto the ventral surface of the head, but no evidence was found for their extension to form a ‘ventral neural ridge’ reaching the stomodaeum: in fact a considerable expanse of non-thickened surface ectoderm was seen to separate the ventral portions of the neural ridges from the stomodaeum. The thickening of neural ectoderm which does appear on the ventral surface of the head results from apposition and fusion of the opposite neural ridges flanking the neural plate and thus the tip of the anterior neuropore - the classically accepted mode of closure of the neuropore. These findings are in accord with the generally accepted concept of the origin of thehypophyseal pouch rather than with its derivation from a ‘ventral neural ridge’. No sign of neural crest formation was encountered ventrally; this observation excludes the possibility that endocrine cells of the APUD series could originate from neural crest in this region.


Development ◽  
1990 ◽  
Vol 108 (4) ◽  
pp. 543-558 ◽  
Author(s):  
G. Couly ◽  
N.M. Le Douarin

Areas of the superficial cephalic ectoderm, including or excluding the neural fold at the same level, were surgically removed from 3-somite chick embryos and replaced by their counterparts excised from a quail embryo at the same developmental stage. Strips of ectoderm corresponding to the presumptive branchial arches were delineated, thus defining anteroposterior ‘segments’ (designated here as ‘ectomeres’) that coincided with the spatial distribution of neural crest cells arising from the adjacent levels of the neural fold. This discrete ectodermal metamerisation parallels the segmentation of the hindbrain into rhombomeres. It seems, therefore, that not only is the neural crest patterned according to its rhombomeric origin but that the superficial ectoderm covering the branchial arches may be part of a larger developmental unit that includes the entire neurectoderm, i.e., the neural tube and the neural crest.


Data in Brief ◽  
2018 ◽  
Vol 21 ◽  
pp. 2547-2553 ◽  
Author(s):  
Christina Murko ◽  
Felipe Monteleone Vieceli ◽  
Marianne Bronner

2003 ◽  
pp. 439-442
Author(s):  
Margaret L. Kirby ◽  
Harriett Stadt ◽  
Donna Kumiski ◽  
Vlad Herlea
Keyword(s):  

1991 ◽  
Vol 30 (6) ◽  
pp. 509-512 ◽  
Author(s):  
Linda Leatherbury ◽  
David M Connuck ◽  
Harold E Gauldin ◽  
Margaret L Kirby

2002 ◽  
Vol 39 ◽  
pp. 408
Author(s):  
Talat Mesud Yelbuz ◽  
Karen L. Waldo ◽  
Donna H. Kumiski ◽  
Harriett A. Stadt ◽  
Raymond R. Wolfe ◽  
...  

2001 ◽  
Vol 307 (2) ◽  
pp. 69-72 ◽  
Author(s):  
Sang Ki Chung ◽  
Ki Bum Sim ◽  
Byung-Kyu Cho ◽  
Seung-Kwan Hong ◽  
Kyu-Chang Wang

Development ◽  
1991 ◽  
Vol 111 (4) ◽  
pp. 857-866 ◽  
Author(s):  
G.N. Serbedzija ◽  
S. Burgan ◽  
S.E. Fraser ◽  
M. Bronner-Fraser

We have used the vital dye, DiI, to analyze the contribution of sacral neural crest cells to the enteric nervous system in chick and mouse embryos. In order to label premigratory sacral neural crest cells selectively, DiI was injected into the lumen of the neural tube at the level of the hindlimb. In chick embryos, DiI injections made prior to stage 19 resulted in labelled cells in the gut, which had emerged from the neural tube adjacent to somites 29–37. In mouse embryos, neural crest cells emigrated from the sacral neural tube between E9 and E9.5. In both chick and mouse embryos, DiI-labelled cells were observed in the rostral half of the somitic sclerotome, around the dorsal aorta, in the mesentery surrounding the gut, as well as within the epithelium of the gut. Mouse embryos, however, contained consistently fewer labelled cells than chick embryos. DiI-labelled cells first were observed in the rostral and dorsal portion of the gut. Paralleling the maturation of the embryo, there was a rostral-to-caudal sequence in which neural crest cells populated the gut at the sacral level. In addition, neural crest cells appeared within the gut in a dorsal-to-ventral sequence, suggesting that the cells entered the gut dorsally and moved progressively ventrally. The present results resolve a long-standing discrepancy in the literature by demonstrating that sacral neural crest cells in both the chick and mouse contribute to the enteric nervous system in the postumbilical gut.


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