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http://hdl.handle.net/1843/76838| Type: | Artigo de Periódico |
| Title: | Effect of different extraction methods on anthocyanin content in hibiscus sabdariffa L. and their antiplatelet and vasorelaxant properties |
| Authors: | Denise Rubinho Dos Santos Martins Caroline Honaiser Lescano Alberto Fernando Oliveira Justo Julia Modesto Vicente Sérgio Henrique Sousa Santos Charles Martins Aguilar Alexandre Borges Ivan Pires de Oliveira Eliana Janet Sanjinez-Argandoña |
| Abstract: | Hibiscus sabdariffa L. is a worldwide component for tea and beverages, being a natural source of anthocyanins, which are associated with cardiovascular activities. To investigate this relationship, we explored different methods of aqueous extraction on the anthocyanin content and antioxidant activity of H. sabdariffa L. calyx extract (HSCE). Pharmacological effects via platelet aggregation, calcium mobilization, cyclic nucleotide levels, vasodilator-stimulated phosphoprotein Ser157 and Ser239, and on the vasomotor response of aortic rings isolated from mice are studied herewith. We found that the application of ultrasonic turbolization, 20 min, combined with acidified water was significantly more effective in the extraction process, providing extracts with the highest levels of anthocyanins (8.73 and 9.63 mg/100 g) and higher antioxidant activity (6.66 and 6.78 μM trolox/g of sample). HSCE significantly inhibited (100-1000 μg/mL) arachidonic acid-induced platelet aggregation, reduced calcium mobilization, and increased cAMP and cGMP levels with VASPSer157 and VASPSer239 phosphorylation. Vasorelaxation reduction was confirmed by the aortic rings and endothelium assays treated with nitric oxide synthase inhibitors, soluble guanylyl cyclase (sGC) oxidizing agent, or Ca2+-activated K+ channel inhibitor. The increasing of cGMP levels could be understood considering the sGC stimulation by HSCE compounds in the specific stimulus domain, which allows an understanding of the observed antiplatelet and vasorelaxant properties of H. sabdariffa L. calyx extract. |
| Subject: | Nucleotídeos cíclicos Computadores moleculares Plaquetas (Sangue) Hibisco |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS |
| Rights: | Acesso Restrito |
| metadata.dc.identifier.doi: | https://doi.org/10.1007/s11130-023-01067-5 |
| URI: | http://hdl.handle.net/1843/76838 |
| Issue Date: | 2023 |
| metadata.dc.url.externa: | https://pubmed.ncbi.nlm.nih.gov/37120677/ |
| metadata.dc.relation.ispartof: | Plant Foods for Human Nutrition |
| Appears in Collections: | Artigo de Periódico |
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