DPDPE vs Insulin Glargine
Head-to-head comparison of DPDPE ([D-Pen2, D-Pen5]-enkephalin) and Insulin Glargine (Insulin glargine (A21Gly,B31Arg,B32Arg human insulin analog)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | DPDPE | Insulin Glargine |
|---|---|---|
| Category | Pain Management | Diabetes & Metabolic |
| Full Name | [D-Pen2, D-Pen5]-enkephalin | Insulin glargine (A21Gly,B31Arg,B32Arg human insulin analog) |
| Molecular Weight | 645.79 Da | 6063.6 Da |
| Half-Life | 15-60 minutes in plasma | About 12-24 hours |
| Amino Acids | 5 | 51 |
| Typical Dose | 0.01-1 ug per animal | 0.1-0.2 U/kg once daily |
| Route | Intrathecal / intracerebroventricular | Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 800 | 13000 |
| Research Status | Pre-clinical | Approved |
DPDPE Benefits
- ✓delta-opioid selectivity
- ✓improved conformational stability
- ✓analgesic receptor mapping
- ✓useful in chronic pain models
Insulin Glargine Benefits
- ✓Once-daily basal coverage
- ✓Smooth action profile
- ✓Lower nocturnal hypoglycemia risk
- ✓Improves fasting glucose control
DPDPE Dosing
Intrathecal 0.01-1 ug per animal|Intracerebroventricular 0.01-0.5 ug per animal|In vitro 0.1-20 nM
Insulin Glargine Dosing
Inject SC once daily at the same time each day|Titrate every 3-4 days to fasting glucose targets|Can be combined with prandial insulin
DPDPE Side Effects
- ⚠sedation
- ⚠nausea-like opioid effects
- ⚠tolerance with repeated dosing
Insulin Glargine Side Effects
- ⚠Hypoglycemia
- ⚠Injection-site reactions
- ⚠Weight gain
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.
Insulin Glargine
Clinical and translational studies support its use as a basal comparator because of prolonged absorption and stable glycemic control. It is heavily used in basal-bolus regimen research and insulin-delivery optimization studies.
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