Arachidonic acid deficiency in streptozotocin-induced diabetes.

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.

authors

Holman RT,Johnson SB,Gerrard JM,Mauer SM,Kupcho-Sandberg S,Brown DM

doi

10.1073/pnas.80.8.2375

subject

Has Abstract

pub_date

1983-04-01 00:00:00

pages

2375-9

issue

8

eissn

0027-8424

issn

1091-6490

journal_volume

80

pub_type

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