| Literature DB >> 26661197 |
Seth Truran1, Volkmar Weissig2, Jillian Madine3, Hannah A Davies3, Diana Guzman-Villanueva2, Daniel A Franco1, Nina Karamanova1, Camelia Burciu1, Geidy Serrano4, Thomas G Beach4, Raymond Q Migrino5.
Abstract
We tested whether nanoliposomes containing phosphatidylcholine, cholesterol and phosphatidic acid (NLPA) prevent β-amyloid 1-42 (Aβ42) fibrillation and Aβ42-induced human arteriole endothelial dysfunction. NLPA abolished Aβ42 fibril formation (thioflavin-T fluorescence/electron microscopy). In ex-vivo human adipose and leptomeningeal arterioles, Aβ42 impaired dilator response to acetylcholine that was reversed by NLPA; this protection was abolished by L-NG-nitroarginine methyl ester. Aβ42 reduced human umbilical vein endothelial cell NO production that was restored by NLPA. Nanoliposomes prevented Aβ42 amyloid formation, reversed Aβ42-induced human microvascular endothelial dysfunction and may be useful in Alzheimer's disease.Entities:
Keywords: Alzheimer’s disease; Amyloid; endothelial function; liposome; microvasculature
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Year: 2015 PMID: 26661197 PMCID: PMC4759678 DOI: 10.1177/0271678X15610134
Source DB: PubMed Journal: J Cereb Blood Flow Metab ISSN: 0271-678X Impact factor: 6.200