Circannual variation in the fatty acid composition of high-density lipoprotein phospholipids during acclimatization in trout.
A circannual variation in the fatty acid composition of plasma and high-density lipoprotein (HDL) phospholipids occurs in rainbow trout (Oncorhynchus mykiss) in response to seasonal alterations in environmental water temperature. The compensatory mechanisms employed in cold adaptation include a decrease in the level of saturated fatty acids and of monoenes of the oleic acid (n-9) family and an increase in the level of unsaturated fatty acids of the linolenic acid (n-3) family, especially in docosahexaenoic acid (22:6(n-3)). The present study demonstrates that in trout, a poikilothermic vertebrate, the weight percentage of 22:6(n-3) in HDL phospholipids is inversely correlated (r = -0.88, P < 0.0001) with water temperature.
Wallaert
C
C
Laboratorie de Physiologie Cellularie et Métabolique des Poissons, Université Paris-Sud, Orsay, France.
Babin
P J
PJ
D000818:Animals; D005227:Fatty Acids / Q000097:blood*; D005260:Female; D008075:Lipoproteins, HDL / Q000097:blood*; D008297:Male; D017686:Oncorhynchus mykiss; D012621:Seasons; D013696:Temperature
D005227:Fatty Acids; D008075:Lipoproteins, HDL