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Author Spotlight: Innovative Techniques for ROS Detection and Implications for Platelet Research
Published on: March 29, 2024
Nutritional and therapeutic approaches to modulate NADPH oxidase-derived ROS signaling in platelets
Francesco Violi1, Daniele Pastori, Roberto Carnevale
1I ClinicaMedica, Sapienza University Rome, Viale del Policlinico 155, Roma 00161, Italy. francesco.violi@uniroma1.it.
Abstract:
Experimental and clinical studies provided evidence that formation of intra-platelet reactive oxidant species (ROS) is implicated in the process of thrombosis. Animal models demonstrated that enhanced ROS formation was associated with serious thrombotic complications and death. In recent years, nutritional and therapeutic approaches were tested to modulate ROS mediated thrombus formation. The use of a nutritional approach stems from the observation that foods rich in antioxidant elements, such as polyphenols, were able to modulate ROS formation. Similarly, some drugs used for different diseases (i.e. statins) showed the ability to modulate oxidative stress. Aim of this review is to summarize current evidences supporting the role of nutrients rich in polyphenols, such as olive oil and cocoa, and of some drugs, such as statins as antiplatelet agents interfering with the Nicotinamide Adenine Dinucleotide Phosphate (NADPH) Oxidase signaling. Indeed, for nutrients and statins, the antiplatelet activity seems to be dependent, at least in part, upon the inhibition of platelet NADPH oxidase-derived ROS formation, resulting in down-regulation of isoprostanes, which are pro-aggregating molecules, and up-regulation of nitric oxide, which is a platelet inhibitor.
Insights
Reactive oxidant species (ROS) contribute to thrombosis. Nutrients like olive oil and cocoa, plus drugs like statins, may inhibit platelet ROS formation, offering potential antiplatelet therapies.
Area of Science:
- Cardiovascular Research
- Biochemistry
- Nutritional Science
Background:
- Intra-platelet reactive oxidant species (ROS) formation is linked to thrombosis.
- Enhanced ROS production in platelets is associated with severe thrombotic events and mortality.
- Nutritional and pharmacological strategies are being explored to manage ROS-mediated thrombus formation.
Purpose of the Study:
- To review evidence on polyphenol-rich nutrients (olive oil, cocoa) and statins as antiplatelet agents.
- To examine their interference with Nicotinamide Adenine Dinucleotide Phosphate (NADPH) Oxidase signaling.
- To highlight the role of platelet NADPH oxidase-derived ROS in antiplatelet activity.
Main Methods:
- Literature review of experimental and clinical studies.
- Analysis of data on antioxidant-rich foods and drug effects on oxidative stress.
- Investigation of mechanisms involving platelet NADPH oxidase and ROS signaling pathways.
Main Results:
- Polyphenol-rich foods and statins demonstrate potential to modulate ROS formation.
- Antiplatelet effects appear linked to inhibition of platelet NADPH oxidase-derived ROS.
- This inhibition leads to reduced pro-aggregating isoprostanes and increased platelet-inhibiting nitric oxide.
Conclusions:
- Nutrients and statins show promise as antiplatelet agents by targeting platelet ROS.
- Modulating platelet NADPH oxidase-derived ROS is a key mechanism for their antiplatelet activity.
- Further research into these agents could lead to novel therapeutic strategies for thrombosis.
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