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Related Experiment Videos

Platelet ultra-structure study in Budd-Chiari syndrome

S Dayal1, H P Pati, G K Pande

  • 1Department of Hematology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.

European Journal of Haematology
|November 1, 1995
PubMed
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Platelets in Budd-Chiari syndrome (BCS) patients show significant ultrastructural changes, including altered granules and open canalicular systems. These findings suggest in vivo platelet activation, potentially linked to the thrombotic process in BCS.

Area of Science:

  • Hematology
  • Pathology
  • Electron Microscopy

Background:

  • Budd-Chiari syndrome (BCS) is a rare condition characterized by hepatic venous outflow obstruction.
  • The role of platelet morphology and activation in the pathogenesis of BCS remains incompletely understood.

Purpose of the Study:

  • To investigate the ultrastructural characteristics of circulating platelets in patients with primary Budd-Chiari syndrome.
  • To correlate observed platelet morphology with markers of in vivo platelet activation.

Main Methods:

  • Transmission electron microscopy (TEM) was used to examine circulating platelets from 20 primary BCS patients and 20 healthy controls.
  • Plasma beta-thromboglobulin levels were assayed as a marker of platelet activation.

Main Results:

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  • BCS patients exhibited significant platelet ultrastructural abnormalities, including paucity/absence of alpha granules, hypertrophied open canalicular systems (OCS), and granule clumping.
  • These changes were observed in 10-90% of platelets in BCS patients, compared to up to 4% in controls.
  • Significantly elevated plasma beta-thromboglobulin levels were found in all BCS patients, indicating ongoing in vivo platelet activation.

Conclusions:

  • Circulating platelets in primary BCS patients display distinct ultrastructural alterations suggestive of activation.
  • These morphologic changes likely reflect the prothrombotic state associated with Budd-Chiari syndrome.