Hermetica Superfood Encyclopedia
The Short Answer
Coscinium usitatum contains berberine as its primary alkaloid, exerting antimicrobial effects through bacterial membrane disruption and antihypertensive effects via modulation of calcium channels and nitric oxide pathways. In rat models, methanol stem extracts and their fractionated alkaloid-enriched fractions reduced mean arterial blood pressure by up to 60.60% and heart rate by 48.50%, outcomes comparable to the reference drug atenolol at 52.80% MABP reduction.
CategoryHerb
GroupSoutheast Asian
Evidence LevelPreliminary
Primary KeywordCoscinium usitatum benefits
Yellow Vine — botanical close-up
Health Benefits
**Antimicrobial Activity**
Berberine-rich stem extracts demonstrate minimum inhibitory concentrations (MIC) of 47.39 µg/mL against Neisseria gonorrhoeae, consistent with berberine's documented mechanism of disrupting bacterial membrane integrity and inhibiting DNA gyrase, supporting its traditional use in treating gonorrhea and wound infections.
**Antihypertensive Effects**
Methanol extract fractions (particularly fraction-E, enriched in alkaloids and flavonoids) reduced mean arterial blood pressure by 60.60%, heart rate by 48.50%, and force of cardiac contraction by 58.40% in rat models, likely through calcium channel antagonism and nitric oxide-mediated vasorelaxation attributed to naringin and berberine.
**Antioxidant Protection**
Methanolic leaf extracts exhibit DPPH radical scavenging with an IC50 of 182.48 µg/mL, and ABTS•+ inhibition ranging from 32.54–44.21% at 50–150 µg/mL, driven by the electron-donating hydroxyl groups of flavonoids (quercetin, naringin) and phenolic acids quantified at 14.54–19.21 mg gallic acid equivalents/g extract.
**Enzymatic Antioxidant Upregulation**
Alcoholic stem extracts have been shown in animal models to upregulate endogenous antioxidant enzymes including catalase and superoxide dismutase, suggesting a secondary layer of oxidative stress protection beyond direct free-radical scavenging by phenolic compounds.
**Anti-infective Traditional Applications**
Widely employed in Vietnamese and Thai ethnomedicine for reducing fever and managing bacterial infections, consistent with berberine's broad-spectrum activity against gram-positive and gram-negative bacteria and its documented anti-inflammatory actions via NF-κB pathway suppression.
**Phytosterol and Ecdysteroid Content**
GC-MS analysis confirmed the presence of 20-hydroxyecdysone (20E; m/z 481 [M+H]+, C27H44O7) in leaf and stem extracts, a compound associated with anabolic, adaptogenic, and anti-inflammatory properties in preclinical research, though its contribution to the plant's overall pharmacological profile requires further characterization.
**Reducing Power and Metal Chelation**
Stem and leaf extracts demonstrate concentration-dependent ferric reducing antioxidant power (FRAP), with absorbance increasing from 0.610 to 1.060 across 50–250 µg/mL, indicating potential metal-chelating and reducing activity useful in countering oxidative stress-mediated chronic disease.
Origin & History
Natural habitat
Coscinium usitatum Lour. (closely related to and often synonymized with Coscinium fenestratum) is native to the tropical forests of Southeast Asia and South Asia, distributed across Vietnam, Thailand, Sri Lanka, India, and Myanmar, typically growing as a large woody climber in humid lowland and montane forest ecosystems. The plant favors well-drained, fertile soils under forest canopy at elevations up to approximately 1,000 meters. Its stems and roots are the primary harvested parts; due to unsustainable wild harvesting driven by high demand in traditional medicine markets, the species is now classified as endangered, and cultivation efforts remain limited.
“Coscinium usitatum and the closely related Coscinium fenestratum have been integral to Ayurvedic medicine in South Asia, where the plant is colloquially called 'Tree Turmeric' due to the vivid yellow color of its stem wood imparted by berberine, and has been traditionally prescribed for jaundice, fever, urinary tract infections, gonorrhea, and as a bitter digestive tonic. In Vietnamese and Thai ethnomedicine, the dried stem is a valued component of multi-herb antipyretic and antimicrobial formulas, often combined with other berberine-containing plants such as Coptis chinensis or Berberis species to enhance anti-infective potency. The plant's yellow berberine-rich stem wood has also been historically used as a natural dye for cloth and as a topical antiseptic paste applied to skin infections and wounds across the Indian subcontinent and Indochina. Sustained overharvesting from wild populations, driven by persistent demand in traditional medicine markets across Asia, has led to the species' endangered status under IUCN-equivalent regional assessments, prompting conservation alerts in Sri Lanka and India by the early 2000s.”Traditional Medicine
Scientific Research
The entirety of available evidence for Coscinium usitatum derives from in vitro phytochemical assays, GC-MS and HPLC profiling studies, and animal (rat) pharmacological experiments; no peer-reviewed human clinical trials have been conducted or identified to date, representing a significant gap in the translational evidence base. Antihypertensive efficacy was demonstrated in rat models comparing graded oral doses of methanol extract fractions against atenolol as a positive control, showing up to 60.60% reduction in MABP and 58.40% reduction in force of cardiac contraction, though sample sizes and formal statistical parameters (confidence intervals, exact p-values) were not reported in available sources. Antimicrobial data against Neisseria gonorrhoeae (MIC 47.39 µg/mL) and antioxidant profiling (DPPH IC50 182.48 µg/mL) were generated exclusively via standardized in vitro assay protocols, which, while reproducible and informative for mechanistic insight, cannot be directly extrapolated to human therapeutic doses or outcomes. Overall, the evidence base is best categorized as preclinical and preliminary; while results are biologically plausible and consistent with the broader berberine pharmacology literature, regulatory-quality dose-response data, pharmacokinetic studies in humans, and randomized controlled trials are entirely absent.
Preparation & Dosage
Traditional preparation
**Methanolic Stem/Leaf Extract (Research Standard)**
Soxhlet extraction with methanol yields approximately 15.8% w/w extract, used at graded doses in animal antihypertensive studies; human equivalent dose not established.
**Aqueous Soxhlet Extract**
21 mg alkaloid equivalents/g dry material; traditionally prepared as decoctions of dried stem wood for fever and infection management in Vietnamese and Thai folk medicine
Yields 14.54–19..
**Chloroform-Methanol Fractional Extract**
215 mg from stem, 200 mg from leaf fractions); not a consumer-available form but the basis for standardized berberine-content preparations
Used for berberine isolation (yielding .
**Dichloromethane/Ethyl Acetate/Butanol Partitioned Fractions**
Employed in antihypertensive animal research to isolate active alkaloid-flavonoid fractions; fraction-E demonstrated the highest cardiovascular activity.
**Traditional Stem Decoction**
Dried stem slices boiled in water, consumed orally; preparation method used in Ayurvedic and Southeast Asian ethnomedicine for managing fever, gonorrhea, and hypertension, with no standardized dose documented in clinical literature.
**Standardization**
21 mg/g in alkaloid-rich extracts provides a provisional phytochemical benchmark
No commercial standardized extracts of Coscinium usitatum are widely available; berberine content of approximately 15.20–19..
**Dosage Note**
500–1500 mg/day for berberine hydrochloride in clinical trials for other indications, but direct application to this species is speculative without species-specific bioavailability data
No safe or effective human dose has been established; general berberine pharmacology literature suggests .
Nutritional Profile
Coscinium usitatum is not consumed as a food and has no conventional macronutrient profile; its pharmacological relevance derives entirely from secondary metabolite content. Primary phytochemicals include berberine alkaloid (dominant; 15.20–19.21 mg berberine hydrochloride equivalents/g in alkaloid-enriched extracts; 215 mg isolated from stem fractions per extraction run), total flavonoids (42 mg quercetin equivalents/g methanolic leaf extract), and total phenolics (14.54–19.21 mg gallic acid equivalents/g across aqueous and methanol Soxhlet extracts). Additional phytochemical classes confirmed qualitatively in methanolic extracts include saponins, triterpenoids, steroids, tannins, glycosides, and resins. GC-MS analysis identified 30 volatile/semi-volatile compounds, with bis(2,4,6-triisopropylphenyl)phosphinicazide as the most prominent at 6.70% peak area, and confirmed 20-hydroxyecdysone (C27H44O7, MW ~480 Da) by mass spectrometry. Berberine bioavailability from oral plant extracts is expected to be low (estimated 1–5% based on general berberine pharmacokinetic literature), with intestinal P-glycoprotein efflux and first-pass metabolism as primary limiting factors, though species-specific human bioavailability data do not exist.
How It Works
Mechanism of Action
Berberine, the dominant alkaloid in Coscinium usitatum stems and leaves (yielding up to 215 mg per extraction fraction via chloroform-methanol HPLC-guided isolation), exerts antimicrobial effects by intercalating into bacterial DNA, inhibiting topoisomerase II (DNA gyrase), and disrupting cell membrane integrity, thereby achieving MIC values as low as 47.39 µg/mL against Neisseria gonorrhoeae. The antihypertensive mechanism involves vasorelaxation mediated by flavonoids such as naringin and quercetin, which modulate L-type calcium channel activity to reduce vascular smooth muscle contractility and may stimulate endothelial nitric oxide synthase (eNOS) to increase NO bioavailability, an effect amplified by alkaloid co-presence in fraction-E extracts. Antioxidant activity operates through two parallel pathways: direct radical quenching by phenolic hydroxyl groups (quantified flavonoids at 42 mg quercetin equivalents/g methanolic extract; total phenolics 14.54–19.21 mg/g) and indirect upregulation of catalase and superoxide dismutase in hepatic and renal tissues, as demonstrated in oral alcoholic-extract animal studies. The ecdysteroid 20-hydroxyecdysone may additionally interact with ecdysone receptors or mammalian estrogen receptor-β to modulate anabolic and anti-inflammatory gene expression, though this pathway remains uncharacterized in the context of this species.
Clinical Evidence
No human clinical trials have been conducted for Coscinium usitatum in isolation; all pharmacological outcome data originate from animal models and in vitro experimental systems. The most robust preclinical outcome is a rat-model antihypertensive study in which methanol extract fraction-E produced a 60.60% reduction in mean arterial blood pressure and a 48.50% reduction in heart rate, numerically exceeding the reference drug atenolol's 52.80% MABP reduction, though the absence of reported sample sizes, variance measures, or formal inferential statistics substantially limits confidence in these figures. Antimicrobial and antioxidant findings are drawn from standardized biochemical assays (DPPH, ABTS, FRAP, MIC broth dilution) that provide mechanistic plausibility but no clinical effect-size data. Given the endangered conservation status of the plant and absence of human pharmacokinetic or safety data, the translation of these preclinical findings into clinical recommendations is not currently justified without substantially expanded research infrastructure.
Safety & Interactions
No formal human safety studies, dose-escalation trials, or adverse event reports have been published for Coscinium usitatum; animal pharmacological studies at effective antihypertensive doses reported no overt signs of acute toxicity, but the absence of structured toxicological evaluation (LD50, sub-chronic toxicity, genotoxicity) means a comprehensive safety profile cannot be established. Based on its high berberine content, potential drug interactions include additive hypotensive effects when co-administered with antihypertensive agents (beta-blockers, calcium channel blockers, ACE inhibitors), additive hypoglycemic effects with metformin or insulin, and inhibition of CYP3A4 and CYP2D6 enzymes by berberine, which could elevate plasma concentrations of co-administered substrates such as cyclosporine, statins, or certain antiarrhythmics. Berberine is contraindicated in pregnancy due to documented uterotonic effects and potential neonatal jaundice risk through displacement of bilirubin from albumin binding sites, and the same caution applies to Coscinium usitatum extracts by pharmacological analogy. Individuals with hypotension, cardiac conduction disorders, or hepatic impairment should exercise particular caution; given the endangered status of the plant and the complete absence of clinical safety data in humans, unsupervised supplementation is not advisable.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
Coscinium usitatum Lour.Coscinium fenestratum (Gaertn.) Colebr.Tree TurmericYellow VineDây vàng đắng (Vietnamese)Hua Tua (Thai)
Frequently Asked Questions
What is Coscinium usitatum used for in traditional medicine?
Coscinium usitatum has been used in Vietnamese, Thai, and Ayurvedic medicine primarily for treating fever, bacterial infections including gonorrhea, and hypertension. Its dried stem wood, rich in the yellow alkaloid berberine, is traditionally prepared as a decoction consumed orally or applied topically to infected wounds. In Ayurveda it is called 'Tree Turmeric' and prescribed as a bitter tonic for jaundice, digestive complaints, and urinary tract infections.
Does Coscinium usitatum lower blood pressure?
Preclinical rat studies show that methanol extract fractions of Coscinium usitatum reduce mean arterial blood pressure by up to 60.60% and heart rate by 48.50%, outcomes that numerically exceeded the reference drug atenolol (52.80% MABP reduction) under the same experimental conditions. The mechanism involves alkaloids and flavonoids (particularly naringin and berberine) that modulate L-type calcium channels and stimulate nitric oxide-mediated vasorelaxation. No human clinical trials have been conducted, so these findings cannot yet be translated into clinical recommendations.
What is the main active compound in Coscinium usitatum?
Berberine is the dominant bioactive alkaloid in Coscinium usitatum, present at 15.20–19.21 mg berberine hydrochloride equivalents per gram in alkaloid-enriched extracts and yielding up to 215 mg per stem extraction run via chloroform-methanol HPLC fractionation. Additional bioactive compounds include flavonoids such as quercetin and naringin, total phenolics (14.54–19.21 mg/g), and the ecdysteroid 20-hydroxyecdysone (confirmed by GC-MS at m/z 481 [M+H]+). Berberine's antimicrobial, antihypertensive, and antioxidant properties are considered the primary drivers of the plant's pharmacological activity.
Is Coscinium usitatum the same as Coscinium fenestratum?
Coscinium usitatum Lour. and Coscinium fenestratum (Gaertn.) Colebr. are closely related species within the Menispermaceae family and are frequently treated as synonymous or interchangeable in pharmacological literature, though some botanical sources maintain them as distinct taxa. Both species share a highly similar alkaloid profile dominated by berberine, similar geographic distribution across South and Southeast Asia, and equivalent traditional uses in Ayurveda and regional folk medicine. Researchers should verify the specific taxon cited in individual studies, as phytochemical yields and bioactivity data may vary between specimens identified under either name.
Is Coscinium usitatum safe to take as a supplement?
No human clinical safety data, established safe dose ranges, or pharmacokinetic studies exist for Coscinium usitatum supplements; all current evidence derives from animal studies that reported no overt acute toxicity at effective doses. Given its high berberine content, potential risks include drug interactions with antihypertensives, hypoglycemic agents, and CYP3A4/CYP2D6 substrates such as statins and cyclosporine, as well as contraindication in pregnancy due to berberine's documented uterotonic effects and bilirubin displacement risk in neonates. Additionally, the species is classified as endangered, raising sustainability and supply-chain authenticity concerns for any commercial extract.
How does Coscinium usitatum's berberine content compare to other berberine-containing herbs?
Coscinium usitatum is a rich natural source of berberine, with stem extracts demonstrating antimicrobial potency against pathogens like Neisseria gonorrhoeae at minimum inhibitory concentrations of 47.39 µg/mL. While other herbs like goldenseal and barberry also contain berberine, Coscinium usitatum's traditional use in Southeast Asian medicine specifically targets infections and inflammatory conditions through this alkaloid's mechanism of disrupting bacterial membrane integrity and inhibiting DNA gyrase. The bioavailability and potency of berberine can vary significantly between plant sources based on growing conditions and extraction methods.
What does research show about Coscinium usitatum's effectiveness for bacterial infections?
In vitro studies demonstrate that berberine-rich extracts from Coscinium usitatum stem show measurable antimicrobial activity, with documented minimum inhibitory concentrations supporting its traditional use against gonorrhea and wound infections. The mechanism involves berberine's ability to disrupt bacterial cell membranes and inhibit DNA gyrase, an enzyme essential for bacterial DNA replication. However, most evidence remains in laboratory studies, and more clinical human trials are needed to establish efficacy and optimal dosing for infectious disease applications.
Should I avoid Coscinium usitatum if I'm taking antibiotics?
Coscinium usitatum's berberine content may have additive antimicrobial effects when combined with conventional antibiotics, potentially enhancing bacterial cell death through different mechanisms. However, concurrent use with prescription antibiotics should be discussed with a healthcare provider to avoid unintended interactions or overwhelming antimicrobial effects. The lack of specific clinical data on co-administration with antibiotics means cautious, monitored use is advisable rather than simultaneous unsupervised supplementation.
Explore the Full Encyclopedia
7,400+ ingredients researched, verified, and formulated for optimal synergy.
Browse IngredientsThese statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.
hermetica-encyclopedia-canary-zzqv9k4w coscinium-usitatum-coscinium-usitatum-lour curated by Hermetica Superfoods at ingredients.hermeticasuperfoods.com and licensed CC BY-NC-SA 4.0 (non-commercial share-alike, attribution required)
