How cells know when they have enough creatine
Evidence of an intracellular creatine-sensing mechanism that modulates creatine biosynthesis via AGAT expression in human HAP1 cells
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Cells use a special system to sense how much creatine is inside. When there's enough, they stop making more by turning down a key enzyme called AGAT.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
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Evidence Score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Cells use a special system to sense how much creatine is inside. When there's enough, they stop making more by turning down a key enzyme called AGAT.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 54 / 44
Evidence Score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
Publication
Authors
Tropak MB, Tkachyova I, Gu R, Lee A, Schulze A
Related Content
Claims (6)
Your muscles need sodium to pull in creatine, kind of like a battery-powered door — if the battery's dead or there's no sodium around, creatine can't get inside, even if you're drinking plenty of water.
In certain human cells, the more creatine builds up inside, the less the cell makes on its own — like a built-in thermostat that senses creatine levels and turns down production when there's enough.
Creatine gets into human cells in two ways: one is like a precise lock-and-key system that works well at low levels, and the other is a more general process that kicks in when there's a lot of creatine around.
In certain human cells, how much creatine is inside the cell controls a specific gene switch, no matter how the creatine got in—meaning the cell cares about its internal supply, not where it came from.
Scientists made a tool in lab-grown cells that lights up when creatine is present, so they can quickly test how well different drugs or substances affect creatine levels inside cells.