Pharmacological Properties of Flavonoids in Disease Models

Flavonoids are a class of polyphenolic compounds ubiquitously found in fruits, vegetables and medicinal plants. Extensive preclinical research has revealed that these molecules exert diverse pharmacological activities across a spectrum of disease models. Their antioxidant capacity enables scavenging of reactive oxygen species and modulation of redox-sensitive signalling cascades, notably the Nrf2 and NF-κB pathways. Anti-inflammatory actions arise from attenuation of pro-inflammatory cytokine production and inhibition of key kinases. In cancer models, flavonoids such as quercetin and taxifolin have been shown to induce cell cycle arrest and apoptosis through mechanisms involving PI3K/Akt and Wnt/β-catenin modulation. Neuroprotective effects are observed in models of Alzheimer’s and Parkinson’s disease, wherein flavonoids reduce amyloid-β aggregation, preserve dopaminergic neurons and engage autophagic clearance. Cardiovascular benefits are mediated by upregulation of endothelial defence enzymes such as heme oxygenase-1 and suppression of lipid peroxidation. Research spans in vitro cell cultures, rodent models and invertebrate systems including Caenorhabditis elegans and Drosophila melanogaster, highlighting conserved mechanisms across phyla. Challenges remain in overcoming poor bioavailability and rapid metabolism, prompting the development of novel delivery strategies such as nanoparticle formulations and structural derivatives. The global significance of flavonoid research lies in its potential to inform nutraceutical development and to inspire new lead compounds for clinical intervention in ageing, metabolic disorders, inflammation and malignancy.

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Pharmacological Properties of Flavonoids in Disease Models publication trend

The graph below shows the total number of articles in pharmacological properties of flavonoids in disease models across all publications each year (not limited to Nature Index journals).

Technical terms

Flavonoid: A polyphenolic secondary metabolite found in plants, characterised by a 15-carbon skeleton and known for antioxidant and signalling-modulatory activities.

Antioxidant: A molecule that neutralises free radicals and reactive oxygen species, preventing cellular damage.

Oxidative stress: A state in which excess reactive oxygen species overwhelm cellular antioxidant defences, leading to molecular damage.

Autophagy: A regulated cellular process for degrading and recycling cytoplasmic components, essential for proteostasis and stress resistance.

NF-κB: A family of transcription factors that regulate genes involved in inflammation, immunity and cell survival.

Model organism: A non-human species used to study biological processes and disease mechanisms due to conserved pathways and genetic tractability.

References

1. Butein Increases Resistance to Oxidative Stress and Lifespan with Positive Effects on the Risk of Age-Related Diseases in Caenorhabditis elegans. Antioxidants (2024).
2. Stilbenoid compounds inhibit NF-κB-mediated inflammatory responses in the Drosophila intestine. Frontiers in Immunology (2023).
3. Taxifolin, a natural flavonoid interacts with cell cycle regulators causes cell cycle arrest and causes tumor regression by activating Wnt/ β -catenin signaling pathway. BMC Cancer (2018).
4. Eriodictyol Protects Endothelial Cells against Oxidative Stress-Induced Cell Death through Modulating ERK/Nrf2/ARE-Dependent Heme Oxygenase-1 Expression. International Journal of Molecular Sciences (2015).
5. UHPLC-MS/MS Determination, Pharmacokinetic, and Bioavailability Study of Taxifolin in Rat Plasma after Oral Administration of its Nanodispersion. Molecules (2016).
6. An insight into novel therapeutic potentials of taxifolin. Frontiers in Pharmacology (2023).