DPDPE vs Histatin-5
Head-to-head comparison of DPDPE ([D-Pen2, D-Pen5]-enkephalin) and Histatin-5 (Human histatin 5) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | DPDPE | Histatin-5 |
|---|---|---|
| Category | Pain Management | Dental & Oral |
| Full Name | [D-Pen2, D-Pen5]-enkephalin | Human histatin 5 |
| Molecular Weight | 645.79 Da | 3035 Da |
| Half-Life | 15-60 minutes in plasma | minutes in saliva |
| Amino Acids | 5 | 24 |
| Typical Dose | 0.01-1 ug per animal | 1-100 µM in research formulations |
| Route | Intrathecal / intracerebroventricular | Topical/Oral rinse |
| Purity | ≥98% | ≥98% |
| Studies Count | 800 | 120 |
| Research Status | Pre-clinical | Pre-clinical |
DPDPE Benefits
- ✓delta-opioid selectivity
- ✓improved conformational stability
- ✓analgesic receptor mapping
- ✓useful in chronic pain models
Histatin-5 Benefits
- ✓anti-Candida activity
- ✓biofilm suppression
- ✓mucosal wound support
- ✓oral innate immunity
DPDPE Dosing
Intrathecal 0.01-1 ug per animal|Intracerebroventricular 0.01-0.5 ug per animal|In vitro 0.1-20 nM
Histatin-5 Dosing
topical rinse or gel|short contact exposure|repeat applications in research protocols
DPDPE Side Effects
- ⚠sedation
- ⚠nausea-like opioid effects
- ⚠tolerance with repeated dosing
Histatin-5 Side Effects
- ⚠local irritation
- ⚠proteolytic instability
- ⚠dose-dependent cytotoxicity in vitro
Research Overview
DPDPE
DPDPE is widely cited in opioid pharmacology because it helped establish the functional role of delta-opioid receptors in pain control. Its constrained structure is also used to explore how peptide cyclization changes potency, stability, and tissue selectivity.
Histatin-5
Histatin-5 is a major salivary defense peptide that can kill Candida species and influence oral microbial communities. It is also investigated for wound-healing and xerostomia-associated oral infection models.
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