Phytochemical Characterization and In Vitro Anticoagulant Potential of Cyamopsis tetragonoloba (L.) Taub.: Exploring a Traditional Medicinal Plant for Natural Antithrombotic Therapy

Abstract

Background: Thromboembolic disorders are among the leading causes of cardiovascular morbidity and mortality worldwide. Although synthetic anticoagulants are effective in preventing thrombus formation, their clinical use is often limited by bleeding complications, drug interactions, and the need for continuous therapeutic monitoring. Consequently, there is growing interest in identifying plant-derived anticoagulant agents with improved safety and therapeutic efficacy. Cyamopsis tetragonoloba (L.) Taub., commonly known as cluster bean or guar, is a medicinal plant rich in polyphenols, flavonoids, tannins, and galactomannan, which have been reported to possess diverse pharmacological properties.

Objective: The present study aimed to investigate the phytochemical constituents and evaluate the in vitro anticoagulant activity of the ethanolic seed extract of Cyamopsis tetragonoloba using human plasma by measuring prothrombin time (PT).

Materials and Methods: The seeds of Cyamopsis tetragonoloba were shade-dried, powdered, and extracted with ethanol using the Soxhlet extraction method. Preliminary phytochemical screening was performed using standard qualitative methods. Anticoagulant activity was assessed in vitro by incubating different concentrations of the ethanolic extract with plasma collected from healthy volunteers. Prothrombin time (PT) was measured to evaluate anticoagulant activity and compared with untreated control samples.

Results: Qualitative phytochemical analysis confirmed the presence of phenolic compounds, flavonoids, tannins, saponins, carbohydrates, and other bioactive constituents in the ethanolic extract. The extract exhibited concentration-dependent prolongation of prothrombin time, indicating significant anticoagulant activity. The observed pharmacological effect may be attributed to the synergistic action of polyphenolic compounds and galactomannan, which may interfere with the coagulation cascade and thrombin-mediated fibrin formation.

Conclusion: The findings demonstrate that the ethanolic extract of Cyamopsis tetragonoloba possesses promising in vitro anticoagulant activity and supports its traditional medicinal use as a potential natural anticoagulant. Further phytochemical characterization, mechanistic studies, toxicity evaluation, and clinical investigations are warranted to identify the active constituents and establish their therapeutic potential in the prevention and management of thromboembolic disorders.