Beta-Defensin (Human Beta-Defensin Peptides)
A family of antimicrobial peptides produced by epithelial cells that form the first line of defense against pathogens. Act as natural antibiotics and immune activators.
How it works
Form pores in microbial membranes causing lysis, recruit immune cells via CCR6 receptor chemotaxis, and bridge innate and adaptive immunity by activating dendritic cells.
Key facts
- Molecular weight: 4000-5000 Da
- Half-life: ~2-4 hours
- Bioavailability: Primarily local/mucosal activity
- Storage: Lyophilized: -20°C. Reconstituted: 2-8°C, use within 7 days.
Dosing overview
- Typical dose: 50-200 mcg
- Frequency: Daily or as needed
- Duration: 2-4 weeks
- Route: Topical or subcutaneous
Protocol notes
- Topical/local use: applied directly to a wound or affected area, often once or twice daily.
- Systemic immune support: low subcutaneous doses (~50-200 mcg) daily during an acute window.
- Activity is largely local/mucosal, so it is usually used for short, targeted courses rather than long-term.
Reported benefits
- Broad antimicrobial activity
- Immune cell recruitment
- Wound healing support
- Biofilm disruption
Possible side effects
- Local inflammation
- Injection site redness
- Mild warmth at application site
Research
- Beta-defensins in innate immunity (2019): Showed synergistic antimicrobial effects with LL-37 against antibiotic-resistant bacteria.
- Defensin-mediated immune activation (2020): Demonstrated potent chemotactic effects recruiting dendritic cells and T-cells to infection sites.
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Community discussions about Beta-Defensin
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Research and educational reference only. Not medical advice.