Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-11-7
pubmed:abstractText
The search for effective treatments that prevent oxidative stress associated with premature ageing and neurodegenerative diseases is an important area of neurochemical research. As age- and disease-related oxidative stress is frequently associated with mitochondrial dysfunction, amphiphilic antioxidant agents of high stability and selectivity that target these organelles can provide on-site protection. Such an amphiphilic nitrone protected human neuroblastoma cells at low micromolar concentrations against oxidative damage and death induced by exposure to the beta-amyloid peptide, hydrogen peroxide and 3-hydroxykynurenine. Daily administration of the antioxidant at a concentration of only 5 mum significantly increased the lifespan of the individually cultured rotifer Philodina acuticornis odiosa Milne. This compound is unique in its exceptional anti-ageing efficacy, being one order of magnitude more potent than any other compound previously tested on rotifers. The nitrone protected these aquatic animals against the lethal toxicity of hydrogen peroxide and doxorubicin and greatly enhanced their survival when co-administered with these oxidotoxins. These findings indicate that amphiphilic antioxidants have a great potential as neuroprotective agents in preventing the death of cells and organisms exposed to enhanced oxidative stress and damage.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-3042
pubmed:author
pubmed:issnType
Print
pubmed:volume
95
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
962-73
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:16135084-Aging, pubmed-meshheading:16135084-Amyloid beta-Peptides, pubmed-meshheading:16135084-Animals, pubmed-meshheading:16135084-Cell Line, Tumor, pubmed-meshheading:16135084-Cell Survival, pubmed-meshheading:16135084-Diagnostic Imaging, pubmed-meshheading:16135084-Disaccharides, pubmed-meshheading:16135084-Disease Models, Animal, pubmed-meshheading:16135084-Dose-Response Relationship, Drug, pubmed-meshheading:16135084-Drug Interactions, pubmed-meshheading:16135084-Humans, pubmed-meshheading:16135084-Hydrogen Peroxide, pubmed-meshheading:16135084-Imines, pubmed-meshheading:16135084-Life Expectancy, pubmed-meshheading:16135084-Mitochondrial Diseases, pubmed-meshheading:16135084-Neuroblastoma, pubmed-meshheading:16135084-Neuroprotective Agents, pubmed-meshheading:16135084-Nitrogen Oxides, pubmed-meshheading:16135084-Oxidative Stress, pubmed-meshheading:16135084-Rotifera
pubmed:year
2005
pubmed:articleTitle
Mitochondrial medicine: neuroprotection and life extension by the new amphiphilic nitrone LPBNAH acting as a highly potent antioxidant agent.
pubmed:affiliation
Abteilung fuer Stoffwechselphysiologie, Institut fuer Zoologie, Anthropologie und Entwicklungsbiologie der Georg August Universitaet Goettingen, Goettingen, Germany. bpoegge@gwdg.de
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't