Purpose: This study explored the in vitro antioxidant and anti-platelet activities of hydroxytyrosol, hydroxytyrosol acetate, 3,4-dihydroxyphenylglycol and two phenolic olive extracts. These compounds and extracts were obtained from a new industrial process to hydrothermally treat the alperujo (160 °C/60 min), a by-product of olive oil extraction.
Methods: The extracts and the purified compounds were obtained chromatographically using both ionic and adsorbent resins. The antioxidant activity was determined by measuring inhibition of human platelet aggregation and inhibition of lipid peroxidation in liver microsomes of vitamin E-deficient rats.
Results: The positive effect of the extracts on the inhibition of platelet aggregation is showed, being higher in the case of hydroxytyrosol acetate up to 38%, and for the first time, its synergist effect with hydroxytyrosol has been proved, obtaining more than double of inhibition. The phenolic extracts and the isolated phenols showed good results for inhibiting the lipid oxidation, up to 62 and 25%, respectively. A synergistic effect occurred when the hydroxytyrosol acetate and the 3,4-dihydroxyphenylglycol were supplemented by hydroxytyrosol.
Conclusion: These results suggest the extract and these compounds obtained from a novel industrial process could be natural alternatives for the prevention of diseases related to cardiovascular disorder or oxidative damage.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00394-014-0807-8 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Venom from Spiders Collected in Southeastern and Northeastern Brazilian Regions Cause Hemotoxic Effects on Human Blood Components.
Toxins (Basel)
December 2024
Molecular Toxinology Lab, Research and Development Department, Ezequiel Dias Foundation-FUNED, Belo Horizonte 30510-010, MG, Brazil.
Spiders of the genus represent a public health problem in Brazil due to the severity of the cutaneous and systemic effects that may result from their bite. In the systemic form of loxoscelism, hemolytic anemia, thrombocytopenia, and disseminated intravascular coagulation can occur. Despite the seriousness of accidents, the venom of some species has not yet been properly characterized considering these hemotoxic effects, such as that of , , and .
View Article and Find Full Text PDFCrocapeptin C from : a novel antithrombotic agent targeting platelet aggregation.
Nat Prod Res
December 2024
Department of Cariology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
Comparative analysis of cold-stored apheresis platelet units in additive solution with or without pathogen reduction: Implications of cytochrome c supplementation.
J Trauma Acute Care Surg
December 2024
From the FH "Sammy" Ross Trauma Center, Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina.
Background: Platelets are limited in supply, and the preservation of platelet function during storage remains challenging. Novel storage approaches are being explored to improve platelet quality, extend shelf life, and reduce risk of infection. This study sought to elucidate platelet function in cold-stored apheresis units in additive solution (platelet additive solution [PAS]) and subjected to pathogen reduction (PR) as well as the impact of cytochrome c (cyt c) supplementation.
View Article and Find Full Text PDFAntiplatelet therapy is not associated with increased risk of complications after lumbar puncture.
J Neurol
December 2024
Department of Neurology, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
Background: Lumbar puncture (LP) is a critical diagnostic procedure in the evaluation of neurological diseases. Although considered safe, complications such as post-dural puncture headache (PDPH), back pain, subdural hematoma or venous sinus thrombosis may still occur. Whether the use of antiplatelet therapy (APT) increases the risk of complications after LP, remains unclear.
View Article and Find Full Text PDFThrombus composition and its implication in ischemic stroke assessment and revascularization treatments.
Neurologia (Engl Ed)
December 2024
Servicio de Neurología, Hospital Universitario Navarra, Pamplona, Navarra, Spain; RICORS-ICTUS, ISCIII, Madrid, Spain.
Introduction: Since mechanical thrombectomy has allowed ischemic stroke thrombi retrieval, its exhaustive study has involved a better knowledge of physiopathological processes implied in its formation.
Development: Thrombotic pathways involved in the different vascular beds shared common mechanisms conditioning difficulties in the identification of specific patterns associated with stroke etiology. Other factors as clot formation time, associated inflammatory status or activation of additional immune and coagulation pathways [Neutrophil extracellular traps (NETs) delivery, platelet aggregation, endothelial activation and VonWillebrand Factor release] have been described as determinants in thrombus characteristics.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!