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Preparations from selected cucurbit vegetables as antiplatelet agents.

Agata Rolnik1, Bartosz Skalski1, Anna Stochmal2

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Yellow pattypan squash preparations show significant anti-platelet properties, potentially reducing cardiovascular disease risk by inhibiting platelet adhesion and activation. Further research into these cucurbits could offer new avenues for CVD treatment.

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Area of Science:

  • Cardiovascular Science
  • Food Science
  • Biochemistry

Background:

  • Platelet activation is a key factor in cardiovascular diseases (CVDs).
  • While some fruits and vegetables show anti-platelet effects, the impact of Cucurbitaceae family vegetables is largely unknown.
  • This study investigates the anti-platelet potential of various cucurbits.

Purpose of the Study:

  • To evaluate the anti-platelet activity of preparations from pumpkin, zucchini, cucumber, and two types of pattypan squash.
  • To assess their effects on platelet adhesion, lipid peroxidation, and thrombus formation.
  • To determine the cytotoxicity of these preparations on blood platelets.

Main Methods:

  • Preparations from selected cucurbits were tested for their effects on platelet adhesion and lipid peroxidation (TBARS assay).
  • Anti-platelet properties were assessed in whole blood using flow cytometry and the total thrombus-formation analysis system (T-TAS).
  • Cytotoxicity was evaluated by measuring lactate dehydrogenase (LDH) activity.

Main Results:

  • Yellow pattypan squash (Cucurbita pepo var. patisoniana) preparation exhibited the strongest anti-platelet activity.
  • This preparation reduced thrombin-activated platelet adhesion and inhibited arachidonic acid metabolism and GPIIb/IIIa expression.
  • No tested preparation caused platelet lysis.

Conclusions:

  • Yellow pattypan squash demonstrates significant potential as a natural agent to combat platelet hyperactivity in cardiovascular diseases.
  • These findings highlight the anti-platelet benefits of cucurbit preparations, suggesting their therapeutic value for CVDs.
  • Further research is warranted to explore the mechanisms and applications of these cucurbits in cardiovascular health.