Background and objectives: Renal failure is a major complication in glycogen storage disease type I (GSD I). We studied the natural course of renal function in GSD I patients. We studied differences between patients in optimal and nonoptimal metabolic control and possible renoprotective effects of angiotensin converting enzyme inhibition. Design, setting, participants, & measurements: Thirty- ...

Glycogen synthase kinase 3β (GSK3β) has been identified to play important roles in neuronal death. Evidence from both in vitro and in vivo studies indicates that increased GSK3β activity contributes to neurodegeneration and to the pathogenesis of Alzheimer disease. But the molecular mechanisms that underlie GSK3β-mediated neurotoxicity remain poorly understood. We reported here ...

... body recognized that there was no longer a shortage. This would only work because, once glycogen is stored in muscle it can only be used by that muscle during exercise (liver ... procedure worked; runners were able to store as much as three times as much glycogen this way. This was the standard for about a decade, when others started to question whether it was the best way - or only way - to achieve ...

... How long you can exercise a muscle depends on how much sugar, called glycogen, you can store in that muscle and how long you can keep it there. When a muscle runs out of its stored ... you don't eat before you compete, you start with reduced stores of glycogen in your muscles and you will not be able to compete at your best. It is nonsensical to claim that fasting increases endurance by causing ...

... your body’s main fuel source is carbohydrates that have been stored in your body (known as glycogen which is stored in the muscles and liver). Although some fat is burned, it’s main energy ... depleted, our bodies will use glucose for energy. In some studies, the body would spare the glycogen and use the glucose for fuel first. In other words, you have not one source of fuel, you have two ...

... case, there is a balance between lactate production and removal or a rate that glycogen utilization can be maintained for an extended time. This marker clearly is critical for ... a similar marker. This marker has been closely associated with an estimate of work corresponding to a rate glycogen utilization can be maintained for 1 hour. Since this marker reflects a balance between ...