Abstract
The fatty acid composition of diacylglycerols of toad brain and retina is reported. In addition, the fatty acid composition of brain and retina phospholipids and of diacylglycerols and phospholipids from choroid is also presented. Retina diacylglycerol content is 7-fold that of the brain; fatty acid acyl groups are also more unsaturated in the former tissue. The diacylglycerols of the retina contain an unusually high amount of docosahexaenoate (42%), while arachidonate represents about 7%. Other major fatty acids are palmitate (19%) and stearate (20%). Brain diacylglycerols contain only 3% docosahexaenoate, while arachidonate represents about 27%. Other components are stearate (24%), palmitate (17%) and oleate (14%). In the retina, the fatty acid composition of phospholipids resembled that of diacylglycerols, and the total unsaturated components were greater than in diacylglycerols. The ratio docosahexaenoate to arachidonate in retina phospholipids and diacylglycerols was similar. On the contrary, the fatty acid composition in the phospholipids from brain and choroid was unlike that observed in their diacylglycerols. It is concluded that the unique characteristics of retina diacylglycerols may be related to a lipid metabolic differentiation developed to sustain the polar lipids of the photoreceptor cell membranes during their renewal process.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
