RETROCONVERSION OF DOCOSAHEXAENOIC ACID IN RAT

被引:85
作者
SCHLENK, H
SAND, DM
GELLERMAN, JL
机构
[1] University of Minnesota, The Hormel Institute, Austin
关键词
D O I
10.1016/0005-2760(69)90028-9
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
1. 1. Uniformly 14C-labeled 4,7,10,13,16,19-docosahexaenoic acid was fed to normal rats and to rats at two stages of essential fatty acid deficiency. All groups incorporated about 17% of 14C fed into liver lipids. Normal rats retroconverted the hexaenoic acid to 7,10,13,16,19-docosapentaenoic and 5,8,11,14,17-eicosapentaenoic acids. These three acids were in phospholipids and, to about 20%, in triglycerides. The deficient rats retroconverted the hexaenoic acid to a much lesser extent and radioactivity in their triglycerides was much lower. 2. 2. The radioactivity in the carboxyl groups of 4,7,10,13,16,19-docosahexaenoic and 5,8,11,14,17-eicosapentaenoic acids corresponded closely to an even distribution of 4C in the chain. However, radioactivity in the carboxyl group of 7,10,13,16,19-docosapentaenoic acid was much lower than calculated for even distribution. At least 75% of this acid must have been reconstituted from a C20 chain. © 1969.
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页码:201 / +
页数:1
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共 21 条
[1]   NUTRIENT REQUIREMENTS OF RATS AND MICE [J].
CUTHBERTSON, WFJ .
PROCEEDINGS OF THE NUTRITION SOCIETY, 1957, 16 (01) :70-76
[2]  
DAVIDOFF F, 1964, J BIOL CHEM, V239, P2496
[3]   PREPARATION OF FATTY ACIDS LABELED WITH C14 FROM OCHROMONAS DANICA [J].
GELLERMAN, JL ;
SCHLENK, H .
JOURNAL OF PROTOZOOLOGY, 1965, 12 (02) :178-+
[4]   MONOENOIC DOCOSAHEXAENOIC FATTY ACIDS OF A HETEROTROPHIC DINOFLAGELLATE [J].
HARRINGT.GW ;
HOLZ, GG .
BIOCHIMICA ET BIOPHYSICA ACTA, 1968, 164 (01) :137-&
[5]  
KAYAMA M, 1957, J BIOL CHEM, V227, P841
[6]  
KLENK E., 1960, ZEIT PHYSIOL CHEM, V320, P218
[7]  
KUNAU W-H, 1968, Z. Physiol. Chem., V349, P333
[8]  
MEAD J. F., 1968, Progress in the Chemistry of Fats and Other Lipids, V9, P159
[9]  
MIYAMOTO K, 1967, J LIPID RES, V8, P191
[10]   TRACER EXPERIMENTS TO ASSESS METABOLIC CONVERSIONS OF POLYUNSATURATED FATTY ACIDS [J].
MOHRHAUE.H ;
HOLMAN, RT .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1965, 42 (07) :639-&