Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2008-5-1
pubmed:abstractText
The epsilon-amino group of lysyl residues oxidatively deaminates in the presence of alpha-dicarbonyl sugars and redox-active metals forming alpha-aminoadipic acid-delta-semialdehyde (allysine; Suyama's hypothesis), which can further oxidize into 2-aminoadipic acid. Here we show that 2-aminoadipic acid is significantly (P < 0.05) correlated with 6-hydroxynorleucine, carboxyethyllysine (CEL), and carboxymethyllysine (CML) in human skin collagen. Since CEL and CML can originate from carbohydrate and lipid by oxidative decomposition and alpha-dicarbonyl formation, these results provide support for Suyama's hypothesis. Allysine, in turn, is readily converted by oxidation into 2-aminoadipic acid, which accumulates to high levels in skin (i.e., > 2 nmol/mg collagen).
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0077-8923
pubmed:author
pubmed:issnType
Print
pubmed:volume
1126
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
205-9
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Aging, diabetes, and renal failure catalyze the oxidation of lysyl residues to 2-aminoadipic acid in human skin collagen: evidence for metal-catalyzed oxidation mediated by alpha-dicarbonyls.
pubmed:affiliation
Department of Pathology, Case Western Reserve University, Cleveland, OH 44106-7288, USA. drs7@po.cwru.edu
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural