Insulin Aspart vs Met-enkephalin
Head-to-head comparison of Insulin Aspart (Insulin aspart (B28-Asp human insulin analog)) and Met-enkephalin (Tyr-Gly-Gly-Phe-Met) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Insulin Aspart | Met-enkephalin |
|---|---|---|
| Category | Diabetes & Metabolic | Pain Management |
| Full Name | Insulin aspart (B28-Asp human insulin analog) | Tyr-Gly-Gly-Phe-Met |
| Molecular Weight | 5825.8 Da | 573.67 Da |
| Half-Life | About 1-3 hours | 1-5 minutes in plasma |
| Amino Acids | 51 | 5 |
| Typical Dose | 0.05-0.2 U/kg per meal | 0.1-5 ug per animal |
| Route | Subcutaneous | Intrathecal / intracerebroventricular |
| Purity | ≥98% | ≥98% |
| Studies Count | 11000 | 1200 |
| Research Status | Approved | Pre-clinical |
Insulin Aspart Benefits
- ✓Fast post-meal glucose lowering
- ✓Predictable onset
- ✓Flexible mealtime administration
- ✓Compatible with pump therapy
Met-enkephalin Benefits
- ✓endogenous opioid signaling
- ✓analgesic reference ligand
- ✓spinal antinociception
- ✓neurochemical pain-pathway probe
Insulin Aspart Dosing
Inject SC immediately before meals|Titrate using glucose monitoring and carbohydrate intake|Can be used in insulin pumps or basal-bolus regimens
Met-enkephalin Dosing
Intrathecal 0.1-5 ug per animal|Intracerebroventricular 0.1-2 ug per animal|In vitro 1-100 nM
Insulin Aspart Side Effects
- ⚠Hypoglycemia
- ⚠Injection-site reactions
- ⚠Weight gain
Met-enkephalin Side Effects
- ⚠sedation at higher exposure
- ⚠constipation-like opioid effects
- ⚠rapid enzymatic degradation
Research Overview
Insulin Aspart
Research consistently shows faster onset and earlier peak action than regular human insulin. It is commonly studied for meal-time glycemic control and pump-based insulin delivery.
Met-enkephalin
Met-enkephalin has been extensively used in receptor pharmacology and nociception studies to map mu and delta opioid biology. The main limitation in translational work is very short half-life from peptidase cleavage and poor systemic stability.
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