MGF (Mechano Growth Factor) vs Exenatide
Side-by-side comparison of key properties, dosing, and research.
Anabolic & IGF
MGF (Mechano Growth Factor)GLP-1 / Weight Loss AgonistsCognitive Enhancement
Exenatide- Summary
- MGF (Mechano Growth Factor) is a splice variant of IGF-1 that is locally produced in muscle tissue in response to mechanical damage from exercise. It activates muscle satellite cells (stem cells) to proliferate and repair damaged fibers, making it specifically targeted at exercise-induced hypertrophy.
- Exenatide is a GLP-1 receptor agonist derived from the Gila monster lizard peptide exendin-4, with 53% homology to human GLP-1 and natural resistance to DPP-4 degradation. Available as twice-daily (Byetta) or once-weekly (Bydureon) formulation, it is also being studied for Parkinson's disease neuroprotection.
- Half-Life
- Native MGF: minutes. PEG-MGF: ~3 days
- ~2.4 hours (Byetta/twice-daily); Bydureon BCISE: weekly via microsphere release
- Admin Route
- SubQ, IM
- SubQ
- Research
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- Typical Dose
- 200–400 mcg
- 5 mcg, titrate to 10 mcg
- Frequency
- 1–2 times per week
- Twice daily
- Key Benefits
- Activates muscle satellite cells for repair and growth
- Accelerates recovery from muscle damage
- Synergistic with IGF-1 LR3 (different mechanisms)
- Promotes muscle hypertrophy specifically at exercised muscles
- Faster recovery between training sessions
- Potential for injury repair in connective tissue
- Blood glucose control in type 2 diabetes
- Weight loss (average 2–3 kg in clinical trials)
- Once-weekly extended-release formulation available
- Reduces appetite and food intake
- Possible neuroprotective in Parkinson's disease (Phase II trials)
- Reduces systemic inflammation
- May protect pancreatic beta cells
- Cardiovascular neutral or potentially protective
- Side Effects
- Muscle soreness (satellite cell activation)
- Injection site irritation
- Hypoglycemia risk (modest, less than IGF-1 LR3)
- Nausea (most common, especially initially)
- Vomiting
- Diarrhea
- Headache
- +4 more
- Stacks With
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