Document Detail


Intravascular infusion of PEGylated Au nanoparticles affects cardiovascular function in healthy mice.
MedLine Citation:
PMID:  23111875     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Recent advances of nanotechnology in clinical settings have spurred the development of various complex engineered nanoparticles (NPs). NPs share characteristics with ultrafine particles (UFPs; <1 μm) that can cross the pulmonary epithelium and disturb cardiovascular functions. Since these particles are injected directly into the blood stream, it is imperative to clarify whether NPs disrupt cardiovascular functions similar to UFPs. Therefore, we investigated whether engineered polyethylene glycol (PEG)-coated aluminum NPs for biomedical uses disturb cardiovascular functions in healthy mice. Mean arterial blood pressure (MAP) was measured in mice chronically instrumented with telemetric blood pressure transducers, and NPs were administered intravenously (10 mg kg(-1)). The NPs caused a prolonged lowering of MAP 7 days after injection (119.3 ± 3.3 vs. 97.4 ± 7.5 min(-1)), with no effect on the endothelial function as revealed by normal endothelial function of small vessels mounted in a myograph.
Authors:
N K Iversen; A Ru Nielsen; T Wang; E Baatrup
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-30
Journal Detail:
Title:  Human & experimental toxicology     Volume:  -     ISSN:  1477-0903     ISO Abbreviation:  Hum Exp Toxicol     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9004560     Medline TA:  Hum Exp Toxicol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Aarhus University, Denmark.
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