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  • Title: The state of actin polymerization in tetracaine-treated platelets.
    Author: Davies GE, Palek J.
    Journal: Thromb Haemost; 1982 Oct 29; 48(2):153-5. PubMed ID: 7179200.
    Abstract:
    Although there is considerable evidence that platelet activation is associated with polymerization of actin, it is not known whether there is some pre-existing F-actin even before activation. We have examined the state of actin polymerization in nonactivated platelets by deoxyribonuclease assay of G-actin and total actin. To fully suppress activation, platelets were prepared in the presence of tetracaine. The G-actin/total actin ratio in tetracaine-treated platelets prepared by three different methods is significantly less than one (average of all results = 0.61). We conclude that about 39% of total actin in nonactivated tetracaine-treated platelets may be present as F-actin.
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