Source:http://linkedlifedata.com/resource/pubmed/id/18448817
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
2008-5-1
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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).
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0077-8923
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
1126
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
205-9
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pubmed:meshHeading |
pubmed-meshheading:18448817-2-Aminoadipic Acid,
pubmed-meshheading:18448817-Adolescent,
pubmed-meshheading:18448817-Adult,
pubmed-meshheading:18448817-Aging,
pubmed-meshheading:18448817-Child,
pubmed-meshheading:18448817-Child, Preschool,
pubmed-meshheading:18448817-Collagen,
pubmed-meshheading:18448817-Diabetes Mellitus,
pubmed-meshheading:18448817-Diabetic Nephropathies,
pubmed-meshheading:18448817-Humans,
pubmed-meshheading:18448817-Infant,
pubmed-meshheading:18448817-Infant, Newborn,
pubmed-meshheading:18448817-Lysine,
pubmed-meshheading:18448817-Middle Aged,
pubmed-meshheading:18448817-Oxidation-Reduction,
pubmed-meshheading:18448817-Skin,
pubmed-meshheading:18448817-Skin Aging
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pubmed:year |
2008
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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.
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pubmed:affiliation |
Department of Pathology, Case Western Reserve University, Cleveland, OH 44106-7288, USA. drs7@po.cwru.edu
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
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