Creatinolfosfate

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Creatinolfosfate (also known as Creatine Phosphate or Phosphocreatine) is a naturally occurring organic compound that facilitates the recycling of adenosine triphosphate (ATP), the energy currency of the cell, primarily in muscle and brain tissue. It is a key player in the phosphagen energy system, the first of the body's energy systems to respond to high-intensity, short-duration exercise.

Structure and Function[edit | edit source]

Creatinolfosfate is a phosphorylated creatine molecule that serves as a rapidly mobilizable reserve of high-energy phosphates in skeletal muscle and the brain to recycle ATP, the energy currency of the cell. This recycling is achieved through the donation of a phosphate group from creatinolfosfate to ADP to form ATP during periods of high energy demand.

Biosynthesis and Regulation[edit | edit source]

Creatinolfosfate is synthesized in the liver, kidneys, and pancreas from the amino acids arginine, glycine, and methionine. This process involves two enzymatic reactions, the first of which is catalyzed by the enzyme arginine:glycine amidinotransferase (AGAT), and the second by guanidinoacetate N-methyltransferase (GAMT). The creatine produced is then transported to muscle and brain tissue, where it is phosphorylated by the enzyme creatine kinase to form creatinolfosfate.

Clinical Significance[edit | edit source]

Creatinolfosfate is used in the medical field for its potential benefits in cardiovascular and neuromuscular health. It has been studied for its role in improving exercise capacity in patients with heart failure, and for its potential neuroprotective effects in neurodegenerative diseases such as Parkinson's disease and Huntington's disease. However, more research is needed to fully understand its therapeutic potential and safety profile.

See Also[edit | edit source]


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