... to enhanced expression of lipoprotein lipase (LPL) whereas mRNA levels of the hormone-sensitive lipase (HSL) remained almost unchanged. The resulting LPL/HSL ratio was thereby highest in fat fish, which suggests that this group of fish has not reached its peak fat storage capacity. This is not surprising...

... address: Department of Biology, University of Western Ontario,London, ON N6A 5B7, Canada 15 10 2007 © The Company of Biologists Limited 2008 2008 migration relative mobilization unsaturated fatty acids linoleic acid hormone-sensitive lipase Zonotrichia Philomachus...

..., however, has not previously been demonstrated. Employing a substrate competition assay, we have characterized the substrate specificity of hormone-sensitive lipase (HSL) from adipose tissue of the Antarctic fish Trematomus newnesi . Rates of oleic acid release from radiolabeled triolein were quantified...