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
Poplar bud extracts from Populus species contain potent phenolic compounds including salicin, caffeic acid, and pinocembrin that inhibit inflammatory cytokines TNF-α, IL-6, and IL-1β while blocking NF-κB activation. These compounds demonstrate antimicrobial activity against pathogens like Helicobacter pylori at concentrations as low as 0.03 mg/mL and support respiratory function through expectorant properties.
Reported Benefits (Provisional)
Origin & History
Poplar Bud, derived from various Populus species (e.g., Populus nigra, Populus balsamifera), is the unopened leaf bud of the poplar tree. It is native to temperate regions across Europe, Asia, and North America. Rich in bioactive compounds, it is valued in functional nutrition for its anti-inflammatory, antimicrobial, and analgesic properties.
Research Narrative (Provisional)
Preliminary in vitro and animal studies support Poplar Bud's anti-inflammatory, antimicrobial, and neuroprotective properties, primarily attributed to its phenolic compounds. Research indicates potential for musculoskeletal and respiratory support, though human clinical trials are limited.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
- Phenolic Glycosides: Salicin, Populin (analgesic, anti-inflammatory) - Flavonoids: Quercetin, Kaempferol (antioxidant, anti-inflammatory) - Essential Oils: (antimicrobial, respiratory support) - Caffeic Acid Derivatives: (antioxidant, anti-inflammatory) - Vitamin C: (immune support, antioxidant)
Reported Mechanism (Provisional)
Poplar bud's primary bioactive compounds caffeic acid and p-coumaric acid provide 50% of antioxidant activity, while flavonoids like pinocembrin and pinostrobin inhibit pro-inflammatory cytokine production. The extract blocks nuclear factor (NF)-κB activation and modulates gene expression of antioxidant enzymes like catalase and inflammatory markers including CCL5. At the cellular level, compounds regulate cell renewal genes KLF10, E2F4, and ZFP36L1 while promoting apoptosis in cancer cells through p53/BAX/Caspase-3 upregulation.
Clinical Narrative (Provisional)
Animal studies using Populus × canadensis extracts at 100 mg/kg demonstrated significant inhibition of lipopolysaccharide-induced lung inflammation in murine models. Isolated pinocembrin at 20-50 mg/kg reduced pulmonary edema and histological damage in acute lung injury studies. In vitro antimicrobial testing showed black poplar bud extracts inhibited Helicobacter pylori growth at 0.03 mg/mL and gram-positive bacteria at 0.08-0.31 mg/mL concentrations. Human clinical trials remain limited, with most evidence derived from preliminary animal and laboratory studies.
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