doi: 10.1177/23.2.1167875.
Localization of a thrombin-sensitive calcium pool in platelets
- PMID: 1167875
- DOI: 10.1177/23.2.1167875
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Localization of a thrombin-sensitive calcium pool in platelets
J Histochem Cytochem.
1975 Feb.
Abstract
Electron microscopic x-ray microprobe analysis of pyroantimonate precipitates in platelets fixed in osmium tetroxide-pyroantimonate revealed calcium localization in the nucleoids of alpha-granules. This pool of calcium had largely disappeared within 10 sec after stimulation of platelets by thrombin. Such a rapid change suggests that this calcium pool may have a regulatory role in stimulus-response coupling.
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