Butein (3,4,2',4'-tetrahydroxychalcone)

Butein is a natural chalcone compound found in plants that demonstrates hepatoprotective properties by modulating PDE4/cAMP/p-CREB signaling pathways. Research indicates it may support liver health in non-alcoholic steatohepatitis and provide neuroprotective effects against oxidative damage.

Origin & History

Butein is a chalcone flavonoid (3,4,2',4'-tetrahydroxychalcone) naturally derived from plant sources including annatto seeds and lacquer trees (Rhus verniciflua). It belongs to the class of polyphenolic compounds and is extracted from these plant materials through standard phytochemical isolation methods.

Historical & Cultural Context

The search results do not provide information about historical use in traditional medicine systems. While butein is derived from plants with traditional applications, specific traditional medical uses or preparation methods are not documented in the available sources.

Health Benefits

• May support liver health by modulating PDE4/cAMP/p-CREB signaling pathway in non-alcoholic steatohepatitis (animal studies only)
• Demonstrates neuroprotective potential by decreasing oxidative injury and ROS production in glutamate-treated neurons (in vitro evidence)
• Shows promise for reactivating mutant p53 function in cancer cells with specific mutations (cell culture studies)
• Exhibits antioxidant properties through radical scavenging activity (laboratory studies)
• May reduce inflammation by suppressing pro-inflammatory cytokines like TNF-α, IL-6, and IL-1β (preclinical evidence only)

How It Works

Butein modulates the phosphodiesterase 4 (PDE4)/cyclic adenosine monophosphate (cAMP)/phosphorylated CREB response element-binding protein (p-CREB) signaling pathway in liver tissue. It demonstrates neuroprotective activity by reducing reactive oxygen species (ROS) production and decreasing oxidative injury in glutamate-treated neurons. The compound appears to exert antioxidant effects through direct free radical scavenging and modulation of cellular stress response pathways.

Scientific Research

No human clinical trials have been published for butein. All available evidence is limited to preclinical studies in animal models and in vitro cell culture experiments. The search contains no PubMed-indexed randomized controlled trials, meta-analyses, or human clinical studies.

Clinical Summary

Current research on butein is limited to animal studies and in vitro investigations, with no published human clinical trials available. Animal studies examining non-alcoholic steatohepatitis showed hepatoprotective effects through PDE4/cAMP/p-CREB pathway modulation, though specific dosages and sample sizes were not standardized across studies. In vitro neuronal studies demonstrated significant reduction in oxidative stress markers in glutamate-treated cell cultures. The evidence base remains preliminary and requires human clinical validation to establish therapeutic efficacy and optimal dosing protocols.

Nutritional Profile

Butein (3,4,2',4'-tetrahydroxychalcone) is a pure polyphenolic chalcone compound, not a food ingredient with classical macronutrient or micronutrient composition. Molecular formula: C15H12O5, molecular weight: 272.25 g/mol. It is not a source of protein, fat, carbohydrates, fiber, vitamins, or dietary minerals in any nutritional sense. As a bioactive compound, it is classified as a hydroxychalcone flavonoid with four hydroxyl groups positioned at the 3, 4, 2', and 4' positions of the chalcone scaffold, which confers its primary biological activity. Found naturally in plants such as Rhus verniciflua (lacquer tree) bark, Butea monosperma (flame of the forest) flowers, Dahlia variabilis, and Coreopsis species, where it typically occurs at concentrations ranging from trace amounts up to approximately 0.1–1% dry weight depending on plant part and species. Bioavailability is considered limited due to low aqueous solubility (lipophilic character, logP estimated ~2.5–3.0), susceptibility to rapid phase II metabolism (glucuronidation and sulfation), and potential gut microbial transformation. No established dietary reference intake exists. Used exclusively as an isolated phytochemical in research and supplement contexts, typically at experimental doses of 10–100 µM in vitro or 10–50 mg/kg in animal studies. No significant caloric contribution.

Preparation & Dosage

No clinically studied dosages in humans are available due to absence of human trials. Animal studies used 20 mg/mL suspended in corn oil via oral gavage in rats. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Other chalcones, polyphenols, antioxidants, liver support compounds, neuroprotective flavonoids

Safety & Interactions

Safety data for butein supplementation in humans is extremely limited due to lack of clinical trials. No established side effect profile, drug interactions, or contraindications have been documented in peer-reviewed literature. Pregnant and breastfeeding women should avoid butein supplements due to insufficient safety data. Individuals taking medications metabolized by liver enzymes should consult healthcare providers before use, as chalcone compounds may potentially affect hepatic drug metabolism.