Abstract:
:Fatty acid compositions of phospholipids of heart, liver, kidney, aorta, and serum from rats having streptozotocin-induced diabetes were determined and compared with those of nondiabetic controls. Linoleic and dihomo-gamma-linolenic acids were increased whereas arachidonic acid was decreased in most tissues, suggesting an impairment of delta 5-desaturase activity. Acids derived from linolenic acid were increased in some diabetic tissues from diabetic animals although the linolenic content was normal, indicating less impairment in the desaturation of the omega 3 series of fatty acids. Diabetes suppressed all polyunsaturated acids in the whole animal, but the competition between omega 3 and omega 6 acids favored the excessive suppression of long-chain omega 6 acids and an increase in the proportion of omega 3 acids in lipids of vital tissues. These changes in fatty acid composition of the phospholipids may have significant effects on cellular functions and vasoregulatory control mechanisms in diabetes.
journal_name
Proc Natl Acad Sci U S Aauthors
Holman RT,Johnson SB,Gerrard JM,Mauer SM,Kupcho-Sandberg S,Brown DMdoi
10.1073/pnas.80.8.2375subject
Has Abstractpub_date
1983-04-01 00:00:00pages
2375-9issue
8eissn
0027-8424issn
1091-6490journal_volume
80pub_type
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