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Luteolin and hormesis.

Edward J Calabrese1, Evgenios Agathokleous2, Rachna Kapoor3

  • 1Department of Environmental Health Sciences,Morrill I - N344, University of Massachusetts, Amherst, MA, 01003, USA.

Mechanisms of Ageing and Development
|August 17, 2021
PubMed
Summary
This summary is machine-generated.

Luteolin, a plant compound, shows hormetic effects, improving healing and bone growth. This involves activating the Nrf2 pathway, reducing inflammation across various biological systems.

Keywords:
Anti-inflammatoryBiphasic dose responseDose responseHormesisLuteolinNeuroprotection

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Area of Science:

  • Biochemistry
  • Pharmacology
  • Cell Biology

Background:

  • Hormesis describes a biphasic dose response where low doses stimulate beneficial effects.
  • Luteolin is a flavonoid with known antioxidant and anti-inflammatory properties.
  • The hormetic potential of luteolin across diverse biological systems remains underexplored.

Purpose of the Study:

  • To conduct the first integrated assessment of luteolin's capacity to induce hormetic dose responses.
  • To investigate the mechanistic basis of luteolin-induced hormesis.
  • To evaluate luteolin's effects on neuroprotection, wound healing, and osteogenesis.

Main Methods:

  • Review of existing experimental data on luteolin's effects across multiple biological models.
  • Analysis of dose-response relationships to identify hormetic patterns.
  • Investigation of molecular pathways, particularly the role of nuclear factor erythroid-derived 2-like 2 (Nrf2).

Main Results:

  • Luteolin demonstrated hormetic dose responses in neuroprotection, wound healing (especially in diabetic models), and osteogenesis.
  • The primary mechanism identified for luteolin-induced hormesis is the upregulation of Nrf2.
  • Nrf2 activation mediates luteolin's broad anti-inflammatory effects in various cell types and organ systems.

Conclusions:

  • Luteolin exhibits significant hormetic potential, offering therapeutic benefits across multiple physiological systems.
  • The Nrf2 pathway is a key mediator of luteolin's hormetic and anti-inflammatory actions.
  • Luteolin represents a promising compound for interventions targeting inflammation-related diseases and tissue repair.