The regulation of the intracellular sodium ion concentration in cultured chick embryo heart cells

1992 ◽  
Vol 186 (2) ◽  
pp. 674-679 ◽  
Author(s):  
Barbara Ahlemeyer ◽  
Horst Weintraut ◽  
Wilhelm Schoner
1961 ◽  
Vol 39 (5) ◽  
pp. 925-932 ◽  
Author(s):  
Helen J. Morton ◽  
Joseph F. Morgan

Seventeen structurally related compounds were tested for their ability to substitute for phenylalanine or tyrosine in the nutrition of chick embryo heart fragments. DL-Alanyl-DL-phenylalanine replaced phenylalanine. All other compounds had negligible effects, and most were toxic at high concentrations. β-Phenylserine, a phenylalanine antagonist, actually prolonged the survival of chick heart cells but only if both phenylalanine and tyrosine were present. Similarly, optimal reversal of β-phenylserine toxicity was dependent on the presence of both amino acids. Although phenylalanine and tyrosine are not interconvertible in the present system, it has been shown that three phenylalanine antagonists, p-fluorophenylalanine, β-2-thienylalanine, and β-phenylserine, can be identified by their relationship to tyrosine, rather than to phenylalanine.


1984 ◽  
Vol 152 (2) ◽  
pp. 427-435 ◽  
Author(s):  
Gunilla Norrgren ◽  
Ted Ebendal ◽  
Herman Wikström

1980 ◽  
Vol 20 (1) ◽  
pp. 45-57 ◽  
Author(s):  
Y. Dickstein ◽  
H. Schwartz ◽  
J. Gross ◽  
A. Gordon

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