Essential fatty acid-deficient rats: III. Distribution of lipid classes in rat testes after feeding partially hydrogenated oils

Lipids ◽  
1969 ◽  
Vol 4 (6) ◽  
pp. 515-521 ◽  
Author(s):  
G. Hølmer ◽  
E. Aaes-Jørgensen
1977 ◽  
Author(s):  
J.E. Vincent ◽  
F.J. Zijlstra

Phospholipase A2 has a biphasic action upon rat platelet aggregation, enhancing after shorter and inhibiting after longer incubation periods. The first effect is inhibited by indomethacin.Cycloperoxides and thromboxane-like substances and prostaglandins are formed on incubation with the enzyme in the same amounts whether aggregation is induced or not. Formation of cycloperoxides and thromboxanes is not leading to aggregation. Phospholipase A2 enhances the aggregation of the platelets of essential fatty acid deficient rats. Only very small amounts of cycloperoxides and thromboxane-like substances are formed. It is concluded that cycloperoxides and thromboxanes can enhance, but not induce aggregation in rat platelets.


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