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Tremella acidic polysaccharide (glucuronic acid-rich fraction)

In vitro / Animal

Mechanism of Action

The glucuronic acid moieties provide antioxidant capacity through metal chelation (binding transition metal ions that catalyze Fenton reactions) and direct radical scavenging. In hepatocytes, glucuronic acid-rich polysaccharides upregulate superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) gene expression, enhancing endogenous antioxidant defenses. Also demonstrates prebiotic effects, promoting growth of Bifidobacterium and Lactobacillus species in the gut.

Research Notes

Yang et al. (2015) showed that Tremella acidic polysaccharides protected mouse hepatocytes from CCl4-induced oxidative damage by restoring SOD and GPx activity to near-normal levels. Liu et al. (2018) demonstrated prebiotic activity of Tremella polysaccharides in human fecal fermentation models, with significant increases in short-chain fatty acid production and Bifidobacterium abundance. All evidence preclinical; human antioxidant and prebiotic studies are needed.

Found In 1 Herb

3D Molecular Structure

Acidic polysaccharide with high glucuronic acid content
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Tremella acidic polysaccharide (glucuronic acid-rich fraction)

Acidic polysaccharide with high glucuronic acid contentComplex carbohydrate polymers that modulate immune response

Representative pattern: (C₆H₁₀O₅)ₙ

Atoms
Carbon
Oxygen

Live Research

Open on PubMed

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