Total sulphur amino acid requirement and cystine replacement value for fingerling rohu, Labeo rohita: effects on growth, nutrient retention and body composition

2010 ◽  
Vol 17 (2) ◽  
pp. e583-e594 ◽  
Author(s):  
S.F. ABIDI ◽  
M.A. KHAN
Keyword(s):  
Body Composition ◽  
Amino Acid ◽  
Labeo Rohita ◽  
Nutrient Retention ◽  
Amino Acid Requirement ◽  
Sulphur Amino Acid ◽  
Total Sulphur

scholarly journals Total sulphur amino acid requirement of children with end‐stage renal disease

2006 ◽  
Vol 20 (5) ◽  
Author(s):  
Justine Turner ◽  
Arshad Humayun ◽  
Rajavel Elango ◽  
Mahroukh Rafii ◽  
Veronika Langos ◽  
...  
Keyword(s):  
Amino Acid ◽  
Renal Disease ◽  
End Stage Renal Disease ◽  
Amino Acid Requirement ◽  
Sulphur Amino Acid ◽  
Total Sulphur ◽  
Stage Renal Disease ◽  
End Stage

STUDIES ON THE SULPHUR METABOLISM OF TISSUES CULTIVATED IN VITRO: III. INTERRELATIONSHIPS BETWEEN CYSTEINE, METHIONINE, CYSTEAMINE, AND CYSTAMINE

1957 ◽  
Vol 35 (10) ◽  
pp. 785-794 ◽  
Author(s):  
Joseph F. Morgan ◽  
Helen J. Morton
Keyword(s):  
Amino Acid ◽  
Embryonic Heart ◽  
Tissue Cultures ◽  
Sulphur Metabolism ◽  
Amino Acid Requirement ◽  
Essential Requirement ◽  
Sulphur Amino Acid ◽  
Synthetic Media

Previous studies on the sulphur amino acid requirement of freshly-explanted chick embryonic heart tissues cultivated in vitro in completely synthetic media have been extended. The essential requirement for L-cystine has been found to be replaceable by L- but not by D-cysteine. In the presence of L-cysteine, the supplementary methionine requirement was found to be satisfied equally by the L- or D-isomer. Of eight derivatives and metabolites of cysteine studied, only cysteamine showed any significant ability to replace cysteine or cystine. The activity of cysteamine was exhibited only in the presence of methionine. High levels of cysteamine were found to be strongly toxic and the toxicity could be reversed specifically by L-cysteine. Significantly less reversal of the cysteamine toxicity was effected by L-cystine, while other sulphydryl and disulphide compounds were ineffective. Cystamine was also found to be toxic to the tissue cultures and its toxicity could be reversed completely by L-cysteine and incompletely by L-cystine.

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