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.
Thatâs why it is sometimes used as an indicator of excess sodium intake 1  ! Urea: Urea is the major waste resulting from protein metabolism, accounting for about half of total urinary wastes. 2  Most of the urea is eliminated through urine, and thus the amount of urea in the urine is often used as a marker of protein intake. Most of the urea is eliminated through urine, and thus the amount of urea in the urine is often used as a marker of protein intake. 2  Sodium: Sodium is an essential mineral, coming exclusively from food. 3  It has a key role in maintaining body fluid volume.