Deoxypyridinoline

**Semantic type:** Organic Chemical

**Definition:** A pyridinium-derived moiety that forms crosslinks in type I collagen in bone. Urine levels of deoxypyridinoline are used as a correlative marker for bone resorption and osteoclast activity; both of these activities may be increased in certain diseases.

**Synonyms:** - D-PYR - D-Pyrilinks - DPD - DPYD - DeoxyPYD - Deoxypyridinium - Lysylpyridinoline - N-(5-Amino-5-Carboxypentyl)-3-Hydroxy-4-(2-Amino-2-Carboxyethyl)-5-(3-Amino-3-Carboxypropyl)Pyridine - Pyridinium, 4-((2S)-2-Amino-2-Carboxyethyl)-1-((5S)-5-Amino-5-Carboxypentyl)-3-((3S)-3-Amino-3-Carboxypropyl)-5-Hydroxy-, Inner Salt - Pyridinium, 4-(2-Amino-2-Carboxyethyl)-1-(5-Amino-5-Carboxypentyl)-3-(3-Amino-3-Carboxypropyl)-5-Hydroxy-, Hydroxide, Inner Salt, Stereoisomer - Pyrilinks-D