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Selected Publication:
Hurst, JS; Slater, TF; Lang, J; Juergens, G; Zollner, H; Esterbauer, H.
Effects of the lipid peroxidation product 4-hydroxynonenal on the aggregation of human platelets.
Chem Biol Interact. 1987; 61(2):109-124
Doi: 10.1016/0009-2797(87)90033-0
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- Co-authors Med Uni Graz
- Jürgens Günther
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- Abstract:
- The stimulation by ADP or arachidonic acid of the aggregation of human platelets in plasma was inhibited by 4-hydroxynonenal (HNE). This reduction of aggregation was time related, and was increased by prolonged preincubation of the platelets with the aldehyde. HNE was more potent than its homologue 4-hydroxypentenal (HPE). HNE was less active in decreasing the aggregation induced by calcium ionophore A23187 or collagen in comparison with ADP. HNE was inactive against aggregation of platelet-rich plasma (PRP) stimulated by thrombin whereas it potently inhibited the aggregation of washed platelets in response to both thrombin and collagen. Platelets were found to degrade HNE, and mechanisms additional to covalent binding to glutathione are indicated by the results obtained. The aldehydes, including HNE, generated by platelets originated principally from arachidonic acid metabolism.
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