The Claim

In differentiated primary human skeletal muscle cells, ERK1/2 activation plays a role in mediating insulin-induced phosphorylation of the Na,K-ATPase alpha-subunit at Thr-Pro motifs, as shown by inhibition experiments and in vitro kinase assays.

Source: ERK1/2 Mediates Insulin Stimulation of Na,K-ATPase by Phosphorylation of the α-Subunit in Human Skeletal Muscle Cells*

What the research says

Roughly balanced

Support and challenge are close. The picture may shift as more studies come in.

Supports
3score
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.

How it works
1 study reviewed
In plain English

When insulin acts on human muscle cells, it turns on a switch (ERK1/2) that helps modify a specific protein (the sodium-potassium pump) at certain spots—this has been seen in lab tests using drugs and purified enzymes.

See the scientific wording

ERK1/2 activation is involved in insulin-induced phosphorylation of the Na,K-ATPase alpha-subunit at Thr-Pro motifs in differentiated primary human skeletal muscle cells, as demonstrated by inhibition and in vitro kinase experiments.

What the research says

1 study
  1. Study: ERK1/2 Mediates Insulin Stimulation of Na,K-ATPase by Phosphorylation of the α-Subunit in Human Skeletal Muscle Cells*

    The study shows that insulin causes a specific protein change in muscle cells by turning on a molecule called ERK1/2, and proves it using targeted experiments that match what the claim describes.

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.

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