Corynoxine (Alkaloid)

Corynoxine is an oxindole alkaloid derived from Uncaria rhynchophylla that may interact with opioid receptors. No human clinical trials have established proven health benefits for corynoxine supplementation.

Origin & History

Corynoxine is an indole alkaloid isolated primarily from the leaves of Uncaria rhynchophylla (Gou-teng), a plant used in traditional Chinese medicine, though it has also been identified in kratom (Mitragyna speciosa) extracts. It belongs to the class of monoterpenoid indole alkaloids, specifically oxindole derivatives. Extraction typically involves acidified water or organic solvents like methanol, followed by purification via chromatography.

Historical & Cultural Context

While corynoxine's source plant Uncaria rhynchophylla is known in traditional Chinese medicine, no specific historical or traditional medicine context for corynoxine itself is documented in the available research. The compound has been identified in both Uncaria and kratom plants but lacks documented traditional use data.

Health Benefits

• No clinically proven health benefits - no human clinical trials identified in research
• Potential opioid receptor activity - limited mechanistic data suggests possible similarities to related alkaloids
• Traditional medicine association - source plant used in Chinese medicine but specific benefits not documented
• Structural similarity to corynantheidine - related compound studied for opioid activity
• Research gap - no evidence-based benefits can be claimed from available data

How It Works

Corynoxine demonstrates potential activity at opioid receptors, though specific binding affinities remain poorly characterized. Limited mechanistic studies suggest this oxindole alkaloid may modulate neurotransmitter pathways similar to other Uncaria alkaloids. The compound's molecular interactions with dopaminergic and cholinergic systems require further investigation.

Scientific Research

No human clinical trials, randomized controlled trials, or meta-analyses specifically on corynoxine were identified in the available research. The research focuses primarily on extraction methods and preclinical analysis of kratom alkaloids, with no PubMed PMIDs provided for corynoxine clinical data.

Clinical Summary

No human clinical trials have been conducted specifically examining corynoxine's health effects. Available research consists primarily of in vitro mechanistic studies and traditional use documentation. The alkaloid has been identified in Uncaria rhynchophylla extracts used in some traditional medicine studies, but corynoxine's individual contributions remain unquantified. Current evidence is insufficient to support specific therapeutic claims.

Nutritional Profile

Corynoxine is a pure isolated alkaloid compound (tetracyclic oxindole alkaloid), not a food or nutritional substance - macronutrient and micronutrient classifications do not apply. Molecular formula: C22H26N2O3, molecular weight approximately 366.45 g/mol. As a bioactive compound, it is present in Uncaria rhynchophylla (Gou Teng/Cat's Claw hook) plant material at trace alkaloid concentrations typically ranging 0.001–0.1% of dry plant weight, alongside related oxindole alkaloids including corynoxine B, rhynchophylline, and isorhynchophylline. Bioactive compound classification: tetracyclic oxindole alkaloid with an indole core structure and a lactone-containing side chain. Limited pharmacokinetic/bioavailability data exists for corynoxine specifically; related oxindole alkaloids from Uncaria species show moderate oral bioavailability in rodent studies with hepatic first-pass metabolism. No caloric value, protein, fat, carbohydrate, fiber, vitamin, or mineral content is attributable to this isolated compound. Research interest centers on its reported autophagy-inducing properties in cellular models (specifically mitophagy via the Beclin-1 pathway at micromolar concentrations in vitro) and preliminary neuroprotective activity in Parkinson's disease cell models, though no human bioavailability or dosing data has been established.

Preparation & Dosage

No clinically studied dosage ranges, forms, or standardization details for corynoxine are available as no clinical studies have been conducted. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Insufficient data for synergistic combinations

Safety & Interactions

Safety data for isolated corynoxine is extremely limited with no established dosage guidelines or toxicity profiles. Potential interactions with opioid medications or central nervous system drugs remain unknown due to lack of pharmacokinetic studies. Pregnancy and breastfeeding safety has not been evaluated. Individuals taking prescription medications should consult healthcare providers before using corynoxine-containing supplements.