Linked Life Data

17548130

Source:http://linkedlifedata.com/resource/pubmed/id/17548130

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2008-2-15
pubmed:abstractText
Synthesis, antioxidant properties and resistance to carnosinase hydrolysis of histidine-containing dipeptides are reported in this study. Carnosine (beta-alanyl-l-histidine), homocarnosine (gamma-aminobutyryl-l-histidine) and anserine (beta-alanyl-3-methyl-l-histidine) were covalently derivatized with beta-cyclodextrin to form different OH- or NH-bound conjugates. Mass spectroscopic and (1)H NMR data were used to determine the structure and the purity of the various beta-cyclodextrin derivatives. The inhibitory effect towards oxidation of human LDL induced by Cu(2+) ions, was estimated by measuring malondialdehyde formation as a function of increasing concentrations of these newly synthesized compounds (the beta-cyclodextrin-anserine conjugated in 3 had the highest antioxidant effect). All derivatives had higher antioxidant effects than those of the corresponding free histidine-containing dipeptides. Resistance to rat brain carnosinase hydrolysis of the most active derivatives indicated that these compounds are good candidates for further studies in more complex cellular and animal models. Their possible applications for remedies in neurodegenerative disorders, such as Alzheimer's and Parkinson's diseases, are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0223-5234
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
373-80
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
New glycosidic derivatives of histidine-containing dipeptides with antioxidant properties and resistant to carnosinase activity.
pubmed:affiliation
Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't