is one of the 20 most common natural amino acids on Earth,
and coded for by DNA.
In non-hepatic tissues, arginine can be biosynthesized
by the ornithine cycle. Even so, arginine is
often classed as one of the 10 essential amino acids.
This need evidently is restricted to children.
plays an important role in cell division, the
healing of wounds, removing ammonia from the
body, immune function, and the release of hormones.
It can be found in many foods such as meat,
poultry, dairy products, and fish. The body
also uses arginine to produce nitric oxide,
which relaxes blood vessels. For this reason,
it has been used to treat cardiovascular disorders
such as heart failure, intermittent claudication,
impotence, female sexual dysfunction, and interstitial