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.
Wastes, such as urea and creatinine, must also be removed from the body. Urea and other wastes are made when the body breaks down protein, such as meat. Creatinine is a waste product of the muscles. As kidney function decreases, the levels of urea and creatinine in the blood increase. Many waste products are toxic (poisonous) if they are not removed from the body fluids. For example, when certain drugs are taken, chemical wastes are produced which must be removed from the body by the kidneys.