A common plant compound shows promise for calming asthma
Lee YZ, Voon FL, Chung HY, Shakwat J, Tham CL
Medicinal Plants
The kale, broccoli, and apples in your garden beds contain kaempferol, the same flavonoid researchers are studying for its ability to calm inflamed airways in asthma models.
Kaempferol is a natural compound found in many common fruits, vegetables, and medicinal plants, including kale, broccoli, and grapes. Scientists reviewing animal and lab studies found it can calm swollen airways, relax tight breathing muscles, and prevent the kind of scarring that makes asthma worse over time. It hasn't been tested in people yet, and the body doesn't absorb it well on its own, so researchers say better delivery methods and human trials are the next step.
Key Findings
Kaempferol reduces inflammatory cell infiltration and lowers pro-inflammatory cytokines, chemokines, and IgE levels in preclinical asthma models
It works through multiple signaling pathways including NF-κB, MAPKs, JAK/STAT, Nrf2, and NOX4-mediated autophagy
It eases airway smooth muscle overreaction and reduces remodeling effects like subepithelial fibrosis, mucus overproduction, and epithelial-to-mesenchymal transition, but poor oral bioavailability and lack of human trials limit current clinical use
chevron_right Technical Summary
A review of animal and lab studies finds that kaempferol, a compound found in many fruits and vegetables, can reduce airway inflammation, tightness, and scarring in asthma models, potentially offering a cheaper, steroid-free complement to current treatments once human trials confirm it works and delivery problems are solved.
Abstract Preview
Original paper
Kaempferol for the treatment of asthma: A review of pre-clinical evidence on therapeutic potential and mechanism.
Asthma remains a significant global health burden characterised by high clinical heterogeneity and immunological complexity. Despite currently available therapies, limitations like steroid insensit...
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