Urea Synthesis in the Intact and in the Isolated Perfused Liver of the Biotin-Deficient Rats
±èÁ¦Çö, Á¶¹«¿¬, ±èº´¿ì, Song Chug-Suk,
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±èÁ¦Çö ( Kim Je-Hyun ) - ¿¬¼¼´ëÇб³ Àǰú´ëÇÐ »ýÈÇб³½Ç
Á¶¹«¿¬ ( Cho Moo-Youn ) - ¿¬¼¼´ëÇб³ Àǰú´ëÇÐ »ýÈÇб³½Ç
±èº´¿ì ( Kim Byung-Woo ) - ¿¬¼¼´ëÇб³ Àǰú´ëÇÐ »ýÈÇб³½Ç
( Song Chug-Suk ) - ¿¬¼¼´ëÇб³ Àǰú´ëÇÐ »ýÈÇб³½Ç
KMID : 0311119710120010013
Abstract
Biotin-deficient rats were raised on a purified ration containing raw egg white plus avidin. Urea synthesis and excretion were compared between the biotin-deficient and the pair-fed control rats. 24hrurinary urea excretion and the specific activities of carbamylphosphate synthetase, ornithine transcarbamylase, and arginase in the liver mitochondria fraction were no different between these two groups.
The net urea production in the liver slice and in the isolated perfused liver of the biotin-deficient rats was similar to that of the pair-fed control. Thus the conclusion must be that biotin is not in urea in mea biosynthesis in the rat.
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