IN the past few years an increasing interest has developed in the determination of urinary hydroxyproline as an index of the metabolism and turnover of collagen. Recent experimental 1,2 and ...

HYDROXYPROLINE, a nonessential amino acid, comprises 13 per cent of the amino acid content of collagen and is almost absent in the composition of other tissue proteins. 1 It is excreted in free ...

A team of researchers found out that children with autistic spectrum disorder (ASD) have increased levels of the amino acid hydroxyproline. According to the medics, this may be associated with ...

Collagen contains specific amino acids – Glycine, Proline, Hydroxyproline and Arginine. These amino acids have a regular arrangement in each of the three chains of these collagen subunits.

Collagen is primarily composed of three amino acids: glycine, proline, and hydroxyproline. In an older 2010 study, Prolyl-hydroxyproline, a collagen fragment that consists of two amino acids ...