Peganine

Peganine is a β-carboline alkaloid found in Peganum harmala that activates the PI3K/Akt signaling pathway, which regulates cell survival and metabolism. This compound demonstrates preliminary antioxidant and antibacterial activities in laboratory studies.

Origin & History

Peganine, also known as vasicine, is a quinazoline alkaloid (C₁₁H₁₂N₂O) isolated from the medicinal plant Justicia adhatoda (Malabar nut) and Peganum harmala. It is extracted from plant leaves using alcohol or chloroform solvents, yielding needle-like crystals with a melting point of 210-212°C.

Historical & Cultural Context

While the source plant Justicia adhatoda has associations with traditional medicine systems like Ayurveda, the research dossier does not provide specific details about the historical or traditional uses of peganine itself. Duration of traditional use is not documented in the available sources.

Health Benefits

• Activates PI3K/Akt signaling pathway (mechanism identified, no clinical trials available)
• Exhibits antioxidant activity (preliminary evidence only)
• Shows antibacterial properties as a bacterial inhibitor (preliminary evidence only)
• Limited evidence - no human clinical trials identified in current research
• Further clinical research needed to confirm health benefits

How It Works

Peganine activates the phosphoinositide 3-kinase (PI3K)/Akt signaling pathway, which promotes cell survival, glucose metabolism, and protein synthesis. The compound also exhibits antioxidant activity by scavenging free radicals and reducing oxidative stress markers. Its antibacterial properties involve inhibition of bacterial cell wall synthesis and disruption of membrane integrity.

Scientific Research

No human clinical trials, randomized controlled trials (RCTs), or meta-analyses specifically on peganine were identified in the available research. The current evidence is limited to basic chemical characterization and preliminary mechanistic studies.

Clinical Summary

Current evidence for peganine consists entirely of laboratory and animal studies, with no human clinical trials available. Preliminary in vitro studies demonstrate antioxidant activity and bacterial growth inhibition, but specific dosages and therapeutic concentrations have not been established. The PI3K/Akt pathway activation has been confirmed through mechanistic studies, though clinical relevance remains unproven. More research is needed to determine safety, efficacy, and appropriate dosing in humans.

Nutritional Profile

Peganine (also known as vasicine) is a quinazoline alkaloid compound, not a nutritional ingredient — it contains no macronutrients (0g protein, 0g fat, 0g carbohydrates), no dietary fiber, no vitamins, and no minerals in any nutritionally relevant sense. It is a pure bioactive alkaloid with molecular formula C11H12N2O and molecular weight of approximately 188.23 g/mol. As an isolated compound, it does not contribute caloric value. The primary bioactive constituents are the quinazoline ring structure responsible for its pharmacological activity, including PI3K/Akt pathway activation. Peganine is derived naturally from Peganum harmala (Syrian rue) and Adhatoda vasica (Malabar nut), where it typically occurs at concentrations of 0.5–1.5% dry weight in plant material alongside related alkaloids vasicinone and deoxyvasicine. Bioavailability data in humans is largely absent; animal studies suggest moderate oral absorption with hepatic first-pass metabolism. Antioxidant activity has been measured in vitro with modest free radical scavenging capacity, though no standardized ORAC or DPPH values have been confirmed in peer-reviewed human studies. Antibacterial properties have been demonstrated against select gram-positive and gram-negative strains in vitro at concentrations of 50–200 µg/mL (MIC range), but clinical translation remains unestablished.

Preparation & Dosage

No clinically studied dosage ranges have been established for peganine in any form (extract, powder, or standardized preparations). Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Insufficient research to recommend synergistic combinations

Safety & Interactions

Safety data for peganine supplementation in humans is currently unavailable due to lack of clinical trials. As a β-carboline alkaloid, peganine may potentially interact with monoamine oxidase (MAO) enzymes, which could affect medications metabolized by these pathways. Pregnancy and breastfeeding safety has not been established, so use should be avoided during these periods. Individuals taking antidepressants, blood pressure medications, or other prescription drugs should consult healthcare providers before use.