Abstract:
:This article summarizes recent ultrastructure findings from our laboratory and documents some of the information accumulated primarily since 1975 from many laboratories. Special attention is given to documentation by scanning electron microscopy which affords insight into platelet activation (adhesion, aggregation, release/secretion) and especially platelet-vessel wall interactions. Structural physiology of platelets is considered in some detail as a basis for understanding platelet disorders contributing to clinical problems of thrombosis and hemorrhage. The impaired ability of von Willebrand platelets to adhere to injured vessel wall is reported using the human umbilical vein perfusion model. Relationships between platelets and blood coagulation factors focus on the exquisite sensitivity of platelets to minute amounts of thrombin. Unmasking of platelet factor 3 sites is identified on activated platelets, after glutaraldehyde fixation, by their reaction ot latex bearing anti-platelet factor 3 markers. The basis for platelet-collagen interactions is reviewed. Conditions for and possible mechanisms behind platelet interaction with vessel wall are discussed. Ex vivo flowing blood-vessel wall models offer opportunities for improved understanding of the platelets role(s) in vascular diseases.
journal_name
Mol Cell Biochemjournal_title
Molecular and cellular biochemistryauthors
Barnhart MIdoi
10.1007/BF00496238subject
Has Abstractpub_date
1978-12-22 00:00:00pages
113-37issue
2-3eissn
0300-8177issn
1573-4919journal_volume
22pub_type
杂志文章,评审abstract::Oxidative metabolism of blood-borne fuels provides myocardium the energy required to sustain its contractile performance. Recent research has revealed that, in addition to supplying energy, certain fuels are able to detoxify harmful oxidants and bolster the myocardium's endogenous antioxidant defenses. These antioxida...
journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章,评审
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journal_title:Molecular and cellular biochemistry
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journal_title:Molecular and cellular biochemistry
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doi:10.1007/BF01732548
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
doi:10.1007/BF01075920
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
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journal_title:Molecular and cellular biochemistry
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journal_title:Molecular and cellular biochemistry
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
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journal_title:Molecular and cellular biochemistry
pub_type: 杂志文章
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