The Claim
In food-deprived rats, the acute recovery of muscle protein synthesis following refeeding is not fully accounted for by changes in insulin and corticosterone levels, indicating the presence of at least one additional, unidentified anabolic factor that independently contributes to muscle protein synthesis.
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 rats that have been starved and then fed again, the return of muscle protein synthesis cannot be fully explained by known hormones insulin and corticosterone, meaning another unknown factor must also be involved.
See the scientific wording
In food-deprived rats, the acute recovery of muscle protein synthesis after refeeding cannot be fully explained by insulin and corticosterone alone, indicating the presence of at least one additional, unidentified anabolic factor that independently contributes to the process.
After eating again, insulin turns on muscle building, but only if the stress hormone corticosterone drops first. Even when both insulin is present and corticosterone is low, muscle building still needs one more unknown factor to reach full strength.
What the research says
1 studyWhen hungry rats eat again, their muscles start rebuilding, but scientists found that even when the main growth hormone (insulin) is high and the stress hormone (corticosterone) is low, something else still needs to be there to make it happen — and they don’t know what it is yet.
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.