Hermetica Superfood Encyclopedia
Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.
Review flags: AWAITING_SEMANTIC_VALIDATION
Sesamin is a lignan compound derived from sesame seeds that exhibits anti-inflammatory and antioxidant properties through modulation of nuclear factor-kappa B pathways. Clinical studies demonstrate its effectiveness in reducing joint inflammation and oxidative stress markers in human subjects.
Origin & History
Sesamin is a lignan compound extracted from sesame seeds (Sesamum indicum L.), belonging to the class of plant-derived polyphenolic compounds. It is obtained through extraction from sesame oil or seed material and exists naturally alongside its structural isomer episesamin. Sesamin functions as a bioactive phytochemical with antioxidant and anti-inflammatory properties derived from the sesame plant's lipid fraction.
Research Narrative (Provisional)
Multiple randomized controlled trials have evaluated sesamin, including studies on rheumatoid arthritis patients (n=44, PMID: 31309643, PMID: 26151734) and type 2 diabetes (n=48, PMID: 27450646). A systematic review analyzed seven RCTs (n=212 total) examining effects on cardiovascular parameters (PMID: 35311241), while a meta-analysis evaluated inflammatory biomarker outcomes (PMID: 34760018).
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
Sesamin is a pure lignan compound (C20H18O6), not a whole food, so it lacks macronutrients, vitamins, or minerals in the traditional sense. Molecular weight: 354.35 g/mol. It is one of the primary lignans found in sesame seeds (Sesamum indicum), typically constituting 0.5–0.8% of sesame oil by weight, with sesame seeds containing approximately 300–400 mg sesamin per 100g of seeds. As an isolated compound, it is nearly 100% pure bioactive lignan with no caloric, protein, fat, or carbohydrate contribution at supplemental doses (typical supplemental doses range from 30–160 mg/day). Bioavailability: Sesamin is metabolized in the gut by intestinal microbiota and hepatic enzymes (CYP450, particularly CYP2C9 and CYP1A2) into active metabolites including enterolactone and enterodiol precursors, as well as SC-1 (sesamolin hydrolysis product) and episesamin. Oral bioavailability is estimated at 30–40% in humans, enhanced by co-ingestion with dietary fats due to its lipophilic nature (logP ≈ 3.0). Peak plasma concentration is typically reached within 2–4 hours post-ingestion. It functions as a potent inhibitor of delta-5 and delta-6 desaturase enzymes, modulating fatty acid metabolism. Also acts as a lignan with weak phytoestrogenic activity and significant antioxidant capacity via NF-κB pathway inhibition.
Reported Mechanism (Provisional)
Sesamin inhibits nuclear factor-kappa B (NF-κB) signaling, reducing production of pro-inflammatory cytokines like TNF-α and interleukin-6. It enhances antioxidant enzyme activity including glutathione peroxidase and catalase while suppressing lipid peroxidation. The compound also modulates prostaglandin E2 synthesis through cyclooxygenase pathway inhibition.
Clinical Narrative (Provisional)
Randomized controlled trials in rheumatoid arthritis patients show sesamin supplementation significantly reduces tender joint count and inflammatory markers compared to placebo. Double-blind studies demonstrate increased antioxidant capacity with concurrent reduction in oxidative stress markers like malondialdehyde. Most clinical evidence comes from small-scale studies with 30-60 participants over 8-12 week periods. While results are promising, larger long-term trials are needed to establish definitive therapeutic protocols.
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