The Claim

In mice, a single dose of the monoclonal antibody SRK-015, which inhibits the proteolytic activation of myostatin precursor forms, increases gastrocnemius muscle mass by 17.5% and prevents dexamethasone-induced muscle atrophy without impairing muscle quality.

Source: Blocking extracellular activation of myostatin as a strategy for treating muscle wasting

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
18score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

In mice, a single injection of the antibody SRK-015 increases muscle mass by 17.5% and stops muscle loss caused by dexamethasone without reducing muscle quality.

See the scientific wording

In mice, a monoclonal antibody (SRK-015) that blocks the proteolytic activation of myostatin precursor forms increases gastrocnemius muscle mass by 17.5% after a single dose and prevents dexamethasone-induced muscle atrophy, with no adverse effects on muscle quality, suggesting that inhibiting extracellular myostatin activation is a viable strategy for combating muscle wasting.

Why this might work

A special antibody binds to inactive myostatin before it can be activated, preventing the release of the active growth factor. Without active myostatin, muscle cells stop breaking down proteins and start building more muscle, leading to larger muscles and protection against muscle loss.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Blocking extracellular activation of myostatin as a strategy for treating muscle wasting

    Scientists gave mice a special antibody that stops a protein called myostatin from becoming active, and the mice grew bigger, stronger muscles without any harm. It also stopped muscle loss caused by a steroid drug.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.