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In vivo temporal EPR imaging of the brain of rats by using two types of blood-brain barrier-permeable nitroxide radicals.

Abstract：

:In vivo temporal EPR imaging was conducted on the brain of rats that received one of two kinds of blood-brain barrier-permeable nitroxide radicals via the tail vein-one is a water-soluble 3-hydroxymethyl-2,2,5,5-tetramethylpyrrolidine-1-oxyl (hydroxymethyl-PROXYL); and the other is a non-water-soluble 3-methoxycarbonyl-2,2,5,5-tetramethylpyrrolidine-1-oxyl (PCAM). From temporal EPR imaging data, temporal changes in the distribution of the nitroxide radical in the cerebral cortex, striatum, and hippocampus in the brain were investigated. It was found that the half-lives of the three parts in the brain of hydroxymethyl-PROXYL are longer and their EPR signal intensities are greater than those of PCAM.

journal_name

Magn Reson Imaging

journal_title

Magnetic resonance imaging

authors

Yokoyama H,Itoh O,Aoyama M,Obara H,Ohya H,Kamada H

doi

10.1016/s0730-725x(02)00491-5

subject

Has Abstract

pub_date

2002-04-01 00:00:00

pages

277-84

issue

3

eissn

0730-725X

issn

1873-5894

pii

S0730725X02004915

journal_volume

20

pub_type

杂志文章

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