Secretory phospholipase A2 inhibitory activity in Tragia hispida: A novel and promising therapeutic agent for dengue fever
Background: Tragia hispida, is widely used in Sri Lankan traditional ayurvedic medicine for the treatment of fever and internal bleeding. Dengue hemorrhagic fever (DHF) is a severe form of dengue characterized by vascular leakage and potential fatality. Secretory phospholipase A2 (sPLA2), an inflamm...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Phytomedicine Plus |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667031325000053 |
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| author | D.V. Dayangi Hemalika U.G. Chandrika Ajita M. Abeysekera Sameera R. Samarakoon Ananda Wijewickrama Gathsaurie Neelika Malavige |
| author_facet | D.V. Dayangi Hemalika U.G. Chandrika Ajita M. Abeysekera Sameera R. Samarakoon Ananda Wijewickrama Gathsaurie Neelika Malavige |
| author_sort | D.V. Dayangi Hemalika |
| collection | DOAJ |
| description | Background: Tragia hispida, is widely used in Sri Lankan traditional ayurvedic medicine for the treatment of fever and internal bleeding. Dengue hemorrhagic fever (DHF) is a severe form of dengue characterized by vascular leakage and potential fatality. Secretory phospholipase A2 (sPLA2), an inflammatory enzyme, plays a critical role in producing platelet-activating factor (PAF), a key mediator of vascular leak. Elevated sPLA2 activity has been linked to the progression of DHF. Purpose: This study aimed to evaluate the sPLA2 inhibitory activity of T. hispida plant extracts with bee venom and dengue patient serum sPLA2. Methods: sPLA2 inhibitory activity of different fractions of the plant was evaluated by a commercially available sPLA2 assay kit compared to the inhibition caused by the commercially available sPLA2 inhibitor CAY 10590. The butanol soluble fraction (THB) of the aqueous extract of Tragia hispida was characterized by TLC and HPLC. Results: Both the aqueous extract (THA) and THB of T. hispida demonstrated sPLA2 inhibition levels comparable to positive control, CAY 10590. At concentrations of 100 µg/ ml and 200 µg/ ml, THB inhibited sPLA2 activity of bee venom by 59.3 % and 84.9 % respectively. Furthermore, THB exhibited significant inhibition of sPLA2 activity in human serum from dengue patients (n = 31, p < 0.0001) than that exhibited by CAY 10590. Conclusions: These findings highlight the potential of T. hispida, particularly THB, as a promising therapeutic agent for dengue fever by inhibiting sPLA2 activity. |
| format | Article |
| id | doaj-art-eb04112bf14c4396a86c57a774545b38 |
| institution | Kabale University |
| issn | 2667-0313 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Phytomedicine Plus |
| spelling | doaj-art-eb04112bf14c4396a86c57a774545b382025-02-10T04:35:20ZengElsevierPhytomedicine Plus2667-03132025-02-0151100732Secretory phospholipase A2 inhibitory activity in Tragia hispida: A novel and promising therapeutic agent for dengue feverD.V. Dayangi Hemalika0U.G. Chandrika1Ajita M. Abeysekera2Sameera R. Samarakoon3Ananda Wijewickrama4Gathsaurie Neelika Malavige5Department of Chemistry, Faculty of Natural Sciences, The Open University of Sri Lanka, Nawala, Sri Lanka; Corresponding author at: Department of Chemistry, Faculty of Natural Sciences, The Open University of Sri Lanka¸ Sri Lanka.Department of Biochemistry, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri LankaDepartment of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Sri LankaInstitute of Biochemistry, Molecular Biology and Biotechnology, University of Colombo, Sri LankaNational Institute of Infectious Diseases, Angoda, Sri LankaAICBU, Department of Immunology and Molecular Medicine, University of Sri Jayewardenepura, Nugegoda, Sri LankaBackground: Tragia hispida, is widely used in Sri Lankan traditional ayurvedic medicine for the treatment of fever and internal bleeding. Dengue hemorrhagic fever (DHF) is a severe form of dengue characterized by vascular leakage and potential fatality. Secretory phospholipase A2 (sPLA2), an inflammatory enzyme, plays a critical role in producing platelet-activating factor (PAF), a key mediator of vascular leak. Elevated sPLA2 activity has been linked to the progression of DHF. Purpose: This study aimed to evaluate the sPLA2 inhibitory activity of T. hispida plant extracts with bee venom and dengue patient serum sPLA2. Methods: sPLA2 inhibitory activity of different fractions of the plant was evaluated by a commercially available sPLA2 assay kit compared to the inhibition caused by the commercially available sPLA2 inhibitor CAY 10590. The butanol soluble fraction (THB) of the aqueous extract of Tragia hispida was characterized by TLC and HPLC. Results: Both the aqueous extract (THA) and THB of T. hispida demonstrated sPLA2 inhibition levels comparable to positive control, CAY 10590. At concentrations of 100 µg/ ml and 200 µg/ ml, THB inhibited sPLA2 activity of bee venom by 59.3 % and 84.9 % respectively. Furthermore, THB exhibited significant inhibition of sPLA2 activity in human serum from dengue patients (n = 31, p < 0.0001) than that exhibited by CAY 10590. Conclusions: These findings highlight the potential of T. hispida, particularly THB, as a promising therapeutic agent for dengue fever by inhibiting sPLA2 activity.http://www.sciencedirect.com/science/article/pii/S2667031325000053sPLA2 inhibitionDengue feverTraditional medicineTragia hispidaTherapeutic agent |
| spellingShingle | D.V. Dayangi Hemalika U.G. Chandrika Ajita M. Abeysekera Sameera R. Samarakoon Ananda Wijewickrama Gathsaurie Neelika Malavige Secretory phospholipase A2 inhibitory activity in Tragia hispida: A novel and promising therapeutic agent for dengue fever Phytomedicine Plus sPLA2 inhibition Dengue fever Traditional medicine Tragia hispida Therapeutic agent |
| title | Secretory phospholipase A2 inhibitory activity in Tragia hispida: A novel and promising therapeutic agent for dengue fever |
| title_full | Secretory phospholipase A2 inhibitory activity in Tragia hispida: A novel and promising therapeutic agent for dengue fever |
| title_fullStr | Secretory phospholipase A2 inhibitory activity in Tragia hispida: A novel and promising therapeutic agent for dengue fever |
| title_full_unstemmed | Secretory phospholipase A2 inhibitory activity in Tragia hispida: A novel and promising therapeutic agent for dengue fever |
| title_short | Secretory phospholipase A2 inhibitory activity in Tragia hispida: A novel and promising therapeutic agent for dengue fever |
| title_sort | secretory phospholipase a2 inhibitory activity in tragia hispida a novel and promising therapeutic agent for dengue fever |
| topic | sPLA2 inhibition Dengue fever Traditional medicine Tragia hispida Therapeutic agent |
| url | http://www.sciencedirect.com/science/article/pii/S2667031325000053 |
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