منابع مشابه
The Metabolism of Amino Acids
It was shown by Seth and Luck (1) that the intestinal absorption of glycine and alanine by rabbits was followed by pronounced aminoacidemia. Other amino acids when administered in similar amounts provoked smaller increases in the amino nitrogen content of the blood. Glutamic acid and aspartic acid were absorbed with but a slight aminoacidemia. The question then arose as to whether these strikin...
متن کاملEfflux of amino acids from the lens.
Estimation of efflux of amino acids from the viammalian lens indicates it is of small magnitude compared to influx at equivalent nonsaturating levels of substrate. This finding is a necessary part of the explanation of the complex problem of the maintenance of elevated, intracellular levels of these substances. Accelerative countertransport was observed when appropriate amino acids were present...
متن کاملAccumulation of amino acids by calf lens.
Calf lens has the capacity for accumulating proline, hydroxyproline, tyrosine, and tryptophan from a buffered salt medium supplemented with glucose. Sufficient energy to accomplish this task can be derived from anaerobic glycolysis. Apparently a variety of neutral amino acids can enter the lens by a common path, if fudged by the existence of competitive effects. Ouabain, an inhibitor of active ...
متن کاملThe metabolism of "surplus" amino acids.
For an adult in N balance, apart from small amounts of amino acids required for the synthesis of neurotransmitters, hormones, etc, an amount of amino acids almost equal to that absorbed from the diet can be considered to be "surplus" in that it will be catabolized. The higher diet-induced thermogenesis from protein than from carbohydrate or fat has generally been assumed to be due to increased ...
متن کاملThe Metabolism of Parenterally Administered Amino Acids
Studies previously reported (l-3)) involving the constant intravenous infusion of a number of amino acids, singly and in combination, have permitted the authors to obtain data concerning a number of physiological and biochemical phenomena associated with amino acid metabolism. The present report deals with the effect of amino acid infusion upon the renal excretion of ammonia. In this phase of m...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1964
ISSN: 0006-2936
DOI: 10.1042/bj0910576