How cells take in creatine and what goes wrong in kidney disease
Regulation of intracellular creatine in erythrocytes and myoblasts: Influence of uraemia and inhibition of Na, K‐ATPase
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
This study looks at how creatine gets into red blood cells and muscle cells, and what happens when kidneys aren't working well.
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
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Max 30Expert Opinion & Narrative Reviews
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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
This study looks at how creatine gets into red blood cells and muscle cells, and what happens when kidneys aren't working well.
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 527 / 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.
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Claims (6)
When creatine gets into muscle cells, it brings sodium with it, which pulls water into the cells and makes them swell up a bit — like a sponge soaking up water.
In regular human red blood cells, about 40% of the creatine that gets inside does so using a special sodium-powered process, which means this system plays a big role in controlling how much creatine is inside the cells.
Even though blood cells from people with kidney disease let in more creatine, they don’t end up with more creatine inside — probably because something in their blood is blocking it from building up.
People with kidney disease have red blood cells that pull in more creatine using sodium than healthy people do, but their cells work the same when sodium isn’t involved — this suggests their bodies handle creatine differently because of the disease.
Red blood cells keep much more creatine inside them than is floating in the blood, even if blood levels change — it’s like they have a special pump that keeps the levels steady.