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Lysophospholipids are liberated during venomous action. In this study we demonstrated that lysophosphatidyl choline (LPC) of various acyl chains enhances considerably the activity of snake venom phosphodiesterase (PDE). Lysophosphatidic acid (LPA) and its cyclic form (cLPA), on the other hand, were found to inhibit this enzyme in a non-competitive (LPA) or competitive (cLPA) manner. Both of these activities may contribute to the progression and subsidence of the poisoning profile. PDE from cellular origin was not substantially affected by any of the above lysophospholipids.
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Mamillapalli et al. (1998) studied this question.
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