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In young, healthy guys recovering from intense workouts, taking creatine doesn’t seem to change muscle swelling or stress signals — which means the boost in muscle fuel recovery probably isn’t due to...
In young, healthy guys, creatine helps refill muscle energy after intense exercise, but it doesn’t work by making muscles more sensitive to insulin — that part hasn’t changed, according to tests and...
Creatine helps muscles refill their energy stores quickly after a tough workout, but this boost only lasts the first day — even if you keep taking creatine, it doesn’t keep speeding things up after...
If young, healthy guys take a lot of creatine with a high-carb diet after a tough workout, their muscles store more creatine within just a few days — and it keeps going up the longer they take it.
If young, healthy guys take 20 grams of creatine every day while eating a super high-carb diet after intense exercise, they rebuild their muscle fuel 82% faster in the first day compared to just...
Taking creatine for a week might change genes in young men's muscles that help reshape the muscle structure, possibly because the muscle cells are holding more water.
Taking creatine for a short time might turn on genes in young men's muscles that help fix DNA, possibly because the cells are reacting to the stress from holding more water.
Taking creatine for 10 days might turn on a gene in young men's muscles that helps muscle cells grow and stay alive.
Taking creatine for just a week can turn on important muscle cell signals that help with growth and energy use in young, healthy guys.
Taking creatine for just a week can make young, healthy guys gain a little weight and look more muscular—even if they don’t work out, mostly because of water holding in their muscles.
When a certain protein in human muscle cells is blocked, insulin can't turn on or move a key cellular pump that helps muscles work properly.
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...
Insulin helps move certain proteins to the surface of human muscle cells and boosts their activity, and this seems to involve a specific cellular signaling process.
Insulin can boost a tiny cellular pump in frog muscle cells, but only when the salt and energy levels are just right — it doesn’t work all the time, just in specific situations.
Insulin helps a cellular pump work better when fuel levels are low, but doesn’t make it go faster when everything’s already maxed out — it’s like giving the pump a sensitivity boost, not a power...
Insulin doesn't boost the pump activity in frog muscle cells when it's already running at full speed, which suggests insulin helps the pump respond better to signals instead of making it work harder.
Insulin boosts a specific cellular pump in frog muscle cells, but this boost gets completely stopped by a chemical called ouabain — meaning insulin only affects that particular pump, not others.
Insulin can boost a tiny cellular pump in frog muscle cells, and it works way better when certain conditions like low salt or energy levels are present.
In people with a rare brain disorder caused by a broken creatine transporter, their cells don't take in creatine or a similar molecule called cyclocreatine as well — showing the broken transporter...
Cyclocreatine gets into kidney cells in a way that looks like it's being actively carried in, not just drifting in on its own—kind of like being carried through a door instead of seeping through a...
Cyclocreatine gets into brain-like cells in a lab mainly using a special doorway called the creatine transporter — when scientists block or remove this doorway, less cyclocreatine gets in, suggesting...
In healthy adults, insulin doesn't make blood vessels relax more when nitric oxide is already at work — meaning insulin probably doesn't improve blood flow by boosting the muscle's response to nitric...
When insulin goes up in healthy people — without changing blood sugar — blood flow to the legs nearly doubles, showing insulin itself can widen blood vessels.
When healthy adults get a certain drug in their leg artery, blood flow drops by up to 45%, and insulin makes this drop even bigger — showing that insulin helps control blood flow in muscles by...