WhichPepsPeptides. Without the hype.
Laboratory / cell evidence · PEG-MGF

MGF peptide replication study in myoblasts and muscle stem cells

The investigators found no apparent proliferative or differentiation effect and questioned earlier claims for the peptide.

Quick read
Laboratory / cell evidence

What this study tells us

This was laboratory research in cultured cells, including human myoblasts and mouse muscle stem cells. It did not administer PEG-MGF to people or animals as a treatment, so it can challenge a mechanism claim but cannot establish clinical benefit or safety.

Who was studied?

C2C12 cells, primary human myoblasts and mouse muscle stem cells

How many?

No participant count — this was laboratory or analytical research.

What happened?

The investigators found no apparent proliferative or differentiation effect and questioned earlier claims for the peptide.

What stops us overclaiming?

Not PEG-MGF; nevertheless it is important conflicting evidence against transferring a simple MGF growth narrative to commercial products.

Need help with terms such as randomized, placebo, endpoint or sample size? Open the glossary →

Key result

The investigators found no apparent proliferative or differentiation effect and questioned earlier claims for the peptide.

Study details

Study designIn-vitro replication / null study
PopulationC2C12 cells, primary human myoblasts and mouse muscle stem cells
RouteIn vitro
Regimen / exposureNative/stabilized MGF peptide
DurationCell-culture experiment
ComparatorVehicle / positive controls
Primary endpoint / questionMyoblast proliferation/differentiation
Safety resultNo human administration or safety data.
Key limitationsNot PEG-MGF; nevertheless it is important conflicting evidence against transferring a simple MGF growth narrative to commercial products.
Registry / identifierPMID 24253050