scholarly journals Gamma Protocadherin Expression in the Embryonic Chick Nervous System

Author(s):  
Kenneth D. Cronin ◽  
Anthony A. Capehart
2007 ◽  
Vol 12 (3) ◽  
pp. 370-377 ◽  
Author(s):  
Andrea M. Stahl ◽  
Gordon Ruthel ◽  
Edna Torres-Melendez ◽  
Tara A. Kenny ◽  
Rekha G. Panchal ◽  
...  

Botulinum toxin is an exceedingly potent inhibitor of neurotransmission across the neuromuscular junction, causing flaccid paralysis and death. The potential for misuse of this deadly poison as a bioweapon has added a greater urgency to the search for effective therapeutics. The development of sensitive and efficient cell-based assays for the evaluation of toxin antagonists is crucial to the rapid and successful identification of therapeutic compounds. The authors evaluated the sensitivity of primary cultures from 4 distinct regions of the embryonic chick nervous system to botulinum neurotoxin A (BoNT/A) cleavage of synaptosomal-associated protein of 25 kD (SNAP-25). Although differences in sensitivity were apparent, SNAP-25 cleavage was detectable in neuronal cells from each of the 4 regions within 3 h at BoNT/A concentrations of 1 nM or lower. Co-incubation of chick neurons with BoNT/A and toxin-neutralizing antibodies inhibited SNAP-25 cleavage, demonstrating the utility of these cultures for the assay of BoNT/A antagonists. ( Journal of Biomolecular Screening 2007:370-377)


2009 ◽  
Vol 239 (2) ◽  
pp. 496-504 ◽  
Author(s):  
Grzegorz Podrygajlo ◽  
Christoph Wiegreffe ◽  
Martin Scaal ◽  
Gerd Bicker

1997 ◽  
Vol 17 (14) ◽  
pp. 5466-5479 ◽  
Author(s):  
A. John MacLennan ◽  
Diana L. McLaurin ◽  
Lianne Marks ◽  
Emily N. Vinson ◽  
Marylynn Pfeifer ◽  
...  

Neuron ◽  
1995 ◽  
Vol 14 (6) ◽  
pp. 1131-1140 ◽  
Author(s):  
Yuling Luo ◽  
Iain Shepherd ◽  
Jie Li ◽  
Michael J Renzi ◽  
Susannah Chang ◽  
...  

1975 ◽  
Vol 53 (6) ◽  
pp. 1005-1006 ◽  
Author(s):  
J. Lelorier ◽  
N. Minejima ◽  
F. E. Shideman

Attempts to assess the importance of the role played by endogenous catecholamines in the positive inotropic response to ouabain have produced contradictory results. The sympathetic nervous system is not present in the 4-day-old chicken embryo heart but is fully developed after 7 days of embryonic life. This was confirmed by the fact 4-day-old hearts do not respond to tyramine and cocaine while the usual positive inotropic and chronotropic responses were observed when these drugs were administered to 7-day-old hearts. In spite of this difference the positive inotropic response to ouabain was virtually identical at these two stages of development.


FEBS Letters ◽  
1999 ◽  
Vol 461 (1-2) ◽  
pp. 86-90 ◽  
Author(s):  
Jeanette C. Perron ◽  
John L. Bixby

1997 ◽  
Vol 1 (4) ◽  
pp. 344-346 ◽  
Author(s):  
Hubert Monnerie ◽  
Odile Boespflug-Tanguy ◽  
Bernard Dastugue ◽  
Annie Meiniel

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