Methylene blue helps brain cells store more sugar as glycogen after being starved, which may help them recover energy later.
Scientific Claim
Methylene blue (1 μM) increases glycogen storage in primary mouse astrocytes after oxygen-glucose deprivation by reducing inhibitory phosphorylation of glycogen synthase.
Original Statement
“MB (1 μM) treated astrocytes had significantly higher glycogen content compared to non-MB treated cells following OGD-reoxygenation. ... MB treatment significantly reduced the ratio of phosphorylated to total glycogen synthase.”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The study directly measured glycogen content and phosphorylation status using validated biochemical methods with statistical significance, supporting a definitive claim within the model.
Evidence from Studies
Supporting (0)
Contradicting (1)
The study shows methylene blue helps brain cells survive when they’re starved of oxygen and sugar, but it doesn’t show that it makes them store more sugar as glycogen by changing a specific enzyme, so the claim goes too far.