The Claim
In diet-induced obese mice, skeletal muscle hypertrophy induced by ActRII blockade occurs independently of Akt signaling, as muscle mass increases similarly in mice with genetic deletion of both Akt1 and Akt2 isoforms.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In obese mice, blocking ActRII increases muscle mass even when the Akt1 and Akt2 signaling genes are removed, showing that muscle growth in this case does not require Akt signaling.
See the scientific wording
In diet-induced obese mice, skeletal muscle hypertrophy induced by ActRII blockade occurs independently of Akt signaling, as muscle mass increases similarly in mice with genetic deletion of both Akt1 and Akt2 isoforms.
Blocking ActRII receptors in muscle stops signals that normally limit muscle growth, which turns on other pathways that build muscle protein without needing the Akt enzyme. This causes muscle fibers to get larger and increase total muscle mass even when Akt is completely missing.
What the research says
1 studyEven when scientists turned off the main muscle-growth switch (Akt) in mice, blocking ActRII still made their muscles bigger — meaning there’s another, hidden way to build muscle that doesn’t need Akt.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.