Scleroderma is not a single disease, but a set of related disorders involving a similar set of symptoms. This makes a concise definition â and diagnosis â difficult. All forms of scleroderma do, however, share the basic characteristics of fibrosis (an excessive accumulation of tissue) and inflammation.
Urea (NH2)2CO is a chemical that comes from the breakdown of proteins. It is the main source of Nitrogen in urine and is excreted by the body as a waste product from your kidn â¦ eys.   Urea is a readily available source of Nitrogen so is used as a fertilizer and sometimes as a supplement to feed for stock.  . 60 people found this useful.t is the main source of Nitrogen in urine and is excreted by the body as a waste product from your kidn â¦ eys.   Urea is a readily available source of Nitrogen so is used as a fertilizer and sometimes as a supplement to feed for stock.   . 60 people found this useful.
The amino acids that are not used up as proteins (because we canât store it) are converted into urea. Urea is broken down protein made in the liver and sent to the kidneys to be excreted as urine (urea is toxic and must be excreted as waste). The Dr can measure urea by doing a blood test called a BUN.