respiratory-health
Respiratory health in plant science refers to the study of how plant-derived compounds, extracts, and bioactive molecules influence the respiratory systems of humans and other organisms. Many plants produce secondary metabolites—such as flavonoids, alkaloids, and essential oils—that exhibit anti-inflammatory, bronchodilatory, or antimicrobial properties relevant to treating respiratory conditions. Understanding these phytochemical mechanisms helps researchers identify and develop plant-based therapeutics for respiratory diseases.
PubMed · 2026-04-06
A polysaccharide extract from a Chinese medicinal vine called Tetrastigma hemsleyanum significantly reduced lung inflammation and tissue damage in mice exposed to a virus-mimicking compound, working by calming immune overreaction and protecting the lung's protective cell lining.
Pretreatment with STHP-5 at doses of 1–4 mg/kg significantly reduced lung inflammation, fluid accumulation, and cell death in mice exposed to a viral mimic (Poly I:C)
STHP-5 suppressed two key immune signaling pathways (STING/TBK1/NF-κB and IRF1/STAT1) that drive the inflammatory overreaction responsible for acute lung injury
The compound protected lung epithelial cells by preserving tight-junction proteins and reducing oxidative stress, keeping the lung barrier physically intact
