W02-P-004 Polyunsaturated fatty acids of marine origin induce mitochondrial biogenesis and beta-oxidation in white fat

2005 ◽  
Vol 6 (1) ◽  
pp. 8
Author(s):  
P. Flachs ◽  
O. Matejkova ◽  
P. Pecina ◽  
N. Frassen ◽  
P. Brauner ◽  
...  
Diabetologia ◽  
2005 ◽  
Vol 48 (11) ◽  
pp. 2365-2375 ◽  
Author(s):  
P. Flachs ◽  
O. Horakova ◽  
P. Brauner ◽  
M. Rossmeisl ◽  
P. Pecina ◽  
...  

1964 ◽  
Vol 21 (2) ◽  
pp. 247-254 ◽  
Author(s):  
R. G. Ackman

Consideration of recent analytical data supports the conclusion that the longer-chain polyunsaturated fatty acids of marine origin are all structurally homogeneous in that the double bonds are cis, the double bonds methylene interrupted, and that, with the exception of the C16 chain length, the ultimate double bond will normally be three, six or nine carbon atoms removed from the terminal methyl group.


1998 ◽  
Vol 52 (10) ◽  
pp. 749-753 ◽  
Author(s):  
EAM de Deckere ◽  
O Korver ◽  
PM Verschuren ◽  
MB Katan

PLoS ONE ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. e0147148 ◽  
Author(s):  
Lobna Ouldamer ◽  
Caroline Goupille ◽  
Anne Vildé ◽  
Flavie Arbion ◽  
Gilles Body ◽  
...  

Lipids ◽  
2014 ◽  
Vol 49 (5) ◽  
pp. 431-444 ◽  
Author(s):  
Thereza C. Lonzetti Bargut ◽  
Eliete D. C. Frantz ◽  
Carlos A. Mandarim-de-Lacerda ◽  
Marcia Barbosa Aguila

1989 ◽  
Vol 264 (1) ◽  
pp. 47-52 ◽  
Author(s):  
H Y Wang ◽  
H Schulz

The mitochondrial beta-oxidation of octa-2,4,6-trienoic acid was studied with the aim of elucidating the degradation of unsaturated fatty acids with conjugated double bonds. Octa-2,4,6-trienoic acid was found to be a respiratory substrate of coupled rat liver mitochondria, but not of rat heart mitochondria. Octa-2,4,6-trienoyl-CoA, the product of the inner-mitochondrial activation of the acid, was chemically synthesized and its degradation by purified enzymes of beta-oxidation was studied spectrophotometrically and by use of h.p.l.c. This compound is a substrate of NADPH-dependent 2,4-dienoyl-CoA reductase or 4-enoyl-CoA reductase (EC 1.3.1.34), which facilitates its further beta-oxidation. The product obtained after the NADPH-dependent reduction of octa-2,4,6-trienoyl-CoA and one round of beta-oxidation was hex-4-enoyl-CoA, which can be completely degraded via beta-oxidation. It is concluded that polyunsaturated fatty acids with two conjugated double bonds extending from even-numbered carbon atoms can be completely degraded via beta-oxidation because their presumed 2,4,6-trienoyl-CoA intermediates are substrates of 2,4-dienoyl-CoA reductase.


OCL ◽  
2019 ◽  
Vol 26 ◽  
pp. 37 ◽  
Author(s):  
Didier F. Pisani ◽  
Gérard Ailhaud

Within heterotrophic organisms, fat, sugar and protein are required to bring energy. In humans, energy homeostasis (i.e. the balance between energy intake and energy expenditure) is tightly regulated. Obesity, characterized by an excess of white fat mass, is a consequence of dysregulation of this balance in which decreased energy expenditure plays an important role. Among dietary components, fat represents approximately 30% of daily intake. Recent studies have shown that, besides its caloric input, fatty acid composition of fat represents an important qualitative issue. The impact of ω6 and ω3 polyunsaturated fatty acids on weight gain and development has been extensively studied. Interestingly, the role played by these polyunsaturated fatty acids in energy expenditure has been also characterized and will be discussed in relation to the various organs involved, in particular brown adipose tissue.


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