Rutaretin

Rutaretin is a flavonoid aglycone structurally related to rutin and quercetin, formed through the hydrolysis of rutin by removing the rutinose sugar moiety. Its primary proposed mechanism involves free radical scavenging via its catechol-containing B-ring, though robust human clinical evidence remains limited.

Origin & History

Rutaretin is a naturally occurring bioactive compound belonging to the psoralen family, characterized by a furan ring fused to a chromenone core. It is found in plants like Chuanminshen violaceum, Fatoua villosa, and Atalantia racemosa.

Historical & Cultural Context

No historical or traditional medicinal uses are documented in the provided sources.

Health Benefits

• Potential antioxidant properties mentioned without evidence.[4]

How It Works

Rutaretin is theorized to exert antioxidant effects through electron donation from its hydroxyl groups, particularly the 3',4'-dihydroxy catechol structure on its B-ring, which can neutralize reactive oxygen species including superoxide and hydroxyl radicals. It may also chelate transition metal ions such as iron(II) and copper(II), preventing Fenton-type reactions that generate oxidative damage. Additionally, flavonoids of this structural class have been studied for potential modulation of Nrf2 pathway activation, which upregulates endogenous antioxidant enzymes including superoxide dismutase and catalase, though direct evidence for rutaretin specifically is lacking.

Scientific Research

No human clinical trials or meta-analyses on rutaretin were identified in the available sources. PubMed search results provide no references to such studies.

Clinical Summary

As of current literature, no published randomized controlled trials or formal human clinical studies have been conducted specifically on rutaretin as an isolated compound. The antioxidant properties attributed to rutaretin are largely extrapolated from in vitro cell culture studies and from the broader body of research on structurally analogous flavonoids such as quercetin and rutin. In vitro assays, including DPPH and ABTS radical scavenging tests, have demonstrated antioxidant capacity for related flavonoid aglycones under laboratory conditions, but these findings do not reliably predict efficacy in humans. The overall evidence base for rutaretin-specific health claims must be characterized as preliminary and insufficient to support therapeutic recommendations.

Nutritional Profile

Rutaretin is a flavonoid aglycone compound (specifically a hydroxylated flavone), not a food ingredient consumed for macronutrient or caloric value, so conventional nutritional metrics (protein, fat, carbohydrates, fiber) are not applicable. As a pure isolated compound, it contains no vitamins or dietary minerals in meaningful quantities. Bioactive profile: Rutaretin is structurally classified as a flavonol/flavone derivative with multiple hydroxyl (-OH) groups on its phenolic ring system, which are the basis for its theorized radical-scavenging capacity. It is chemically related to luteolin and diosmetin derivatives. Molecular weight is approximately 300–320 g/mol based on its flavonoid backbone. Bioavailability data for rutaretin specifically is extremely limited in published literature; as with most flavonoid aglycones, it is expected to have moderate lipophilicity, potentially better passive absorption than glycosylated counterparts, but subject to extensive hepatic first-pass metabolism and conjugation (glucuronidation, sulfation). No established concentration ranges in food sources have been documented for rutaretin specifically. Published research as of the knowledge cutoff is sparse, with antioxidant claims based primarily on in vitro structural analogy to related flavonoids rather than clinical or in vivo quantitative studies.

Preparation & Dosage

No clinically studied dosage ranges or forms are available from the sources. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Quercetin, Resveratrol, Curcumin, Green tea extract, Vitamin C

Safety & Interactions

No formal human safety studies, toxicology reports, or established tolerable upper intake levels have been published specifically for isolated rutaretin. Because it shares structural features with quercetin, potential interactions with CYP3A4 and CYP2C8 drug-metabolizing enzymes are theoretically possible, which could affect the plasma concentrations of medications such as cyclosporine, statins, or anticoagulants. Pregnant and breastfeeding individuals should avoid supplementation given the complete absence of safety data in these populations. Individuals with known flavonoid hypersensitivity or those taking antiplatelet or anticoagulant medications should consult a healthcare provider before use.