scholarly journals Nonlinear Choroidal Responses to Imposed Defocus in Young Chick Eyes

2010 ◽  
Vol 7 (15) ◽  
pp. 110-110
Author(s):  
Y. Tian
Keyword(s):  
Young Chick

Arginase in young chick embryos

1962 ◽  
Vol 26 (1) ◽  
pp. 175-188 ◽  
Author(s):  
Eva Eliasson
Keyword(s):  
Chick Embryos ◽  
Young Chick

An electrosurgical technique for the production of localized tissue ablations in the early chick embryo

Development ◽  
1971 ◽  
Vol 26 (1) ◽  
pp. 21-29
Author(s):  
R. K. Jordan
Keyword(s):  
Chick Embryo ◽  
Low Frequency ◽  
Alternating Current ◽  
Chick Embryos ◽  
Operating Microscope ◽  
Young Chick ◽  
Early Chick Embryo ◽  
Electrolytic Corrosion ◽  
Tungsten Metal

The passage of low-frequency alternating current was found superior to other methods considered for the production of small, discrete, electrolytic ablations in young chick embryos. Active electrodes of tungsten metal less than 5 µm in diameter were prepared by controlled electrolytic corrosion. These gave reproducible, discrete foci of destruction of the required size, with currents less than 2 mA. The identification of destroyed tissue areas was immediately apparent under the operating microscope and confirmed histologically. Preliminary studies on bilateral extirpation of the ultimobranchial primordia show the absence of the ultimobranchial bodies 6 days after destruction of the primordia at 96 h of incubation.

Efficiency of Tryptophan as a Niacin Precursor in the Young Chick

1973 ◽  
Vol 36 (2) ◽  
pp. 299-302 ◽  
Author(s):  
D. H. Baker ◽  
N. K. Allen ◽  
A. J. Kleiss
Keyword(s):  
Young Chick

Expression and epitopic conservation of calponin in different smooth muscles and during development

1996 ◽  
Vol 74 (2) ◽  
pp. 187-196 ◽  
Author(s):  
Jian-Ping Jin ◽  
Michael P. Walsh ◽  
Mary E. Resek ◽  
Gail A. McMartin
Keyword(s):  
Smooth Muscle ◽  
Thin Filament ◽  
Smooth Muscles ◽  
Constitutive Expression ◽  
Young Chick ◽  
Adult Chicken ◽  
Muscle Tissues ◽  
Highly Sensitive ◽  
Cnbr Cleavage ◽  
Low Levels

Calponin is a thin filament associated protein found in smooth muscle as a potential modulator of contraction. Five mouse monoclonal antibodies (mAbs CP1, CP3, CP4, CP7, and CP8) were prepared against chicken gizzard α-calponin. The CP1 epitopic structure is conserved in smooth muscles across vertebrate phyla and is highly sensitive to CNBr cleavage in contrast with the chicken-specific CP4 and the avian–mammalian-specific CP8 epitopes that are resistant to CNBr fragmentation. Using this panel of mAbs against multiple epitopes, only α-calponin was detected in adult chicken smooth muscles and throughout development of the gizzard. Western blotting showed that the calponin content varied among different smooth muscle tissues and correlated with that of h-caldesmon. In contrast with the constitutive expression of calponin in phasic smooth muscle of the digestive tract, very low levels of calponin were detected in adult avian tracheas and no calponin expression was detected in embryonic and young chick tracheas. These results provide information on the structural conservation of calponins and suggest a relationship between calponin expression and smooth muscle functional states.Key words: smooth muscle calponin, caldesmon, expression, development, chicken trachea.

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