Antiglycation and antitumoral activity of Tribulus terrestris dry extract

Document Type : Original Research Article


1 São Paulo State University (UNESP), Institute of Chemistry, Araraquara, São Paulo, Brazil

2 Fundação Educacional do Município de Assis (FEMA), Assis, São Paulo, Brazil

3 University of Campinas (UNICAMP), Faculty of Pharmaceutical Sciences, Campinas, São Paulo, Brazil

4 São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Department of Biotechnology, Laboratory of Herbal Medicine and Natural Products, Assis, São Paulo, Brazil


Objective: Investigation of the antiglycation and antitumoral potential of standardized and saponins-enriched extracts of Tribulus terrestris herbal medicine.
Materials and Methods: The procedures for the evaluation of the antiglycation activity of the standardized (TtSE) and saponins-enriched (TtEE) extracts of T. terrestris were: determination of relative mobility in electrophoresis (RME), free amino groups using OPA method and advanced glycation end-products (AGEs) fluorescence. Antioxidant activity was determined by DPPH radical scavenging test. In vitro antitumor activity of TtSE and TtEE was evaluated in human tumor cell lines.
Results: The results were obtained by antiglycation tests (RME, OPA method and AGEs fluorescence determination), using BSA as protein and ribose as glycation agent, and antioxidant assay (DPPH test); it was verified that both extracts of T. terrestris have antiglycation and antioxidant activity. In addition, the extracts were able to induce death of more than 50% of human tumor cell lines.
Conclusion: The present study showed that standardized and saponins-enriched extracts of T. terrestris herbal medicine present antiglycation and antioxidant and antiproliferative action in human tumor cells lines. The saponins-enriched extract proved a greater antiglycation and antioxidant activity in comparison to the standardized type.


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