UPEI-300, a conjugate of lipoic acid and edaravone, mediates neuroprotection in ischemia/reperfusion.

Abstract:

:Edaravone, an electron spin trapper with radical scavenging activity, has been shown to be effective in reducing infarct volume in humans following ischemic stroke. However, concerns of edaravone-induced renal toxicity have limited its clinical adoption. Previous work has demonstrated that edaravone produced significant neuroprotection when injected prior to a period of ischemia and/or reperfusion. The current investigation was designed to determine if a newly synthesized co-drug consisting of lipoic acid and edaravone, named UPEI-300, could produce neuroprotection in in vitro and/or an in vivo rodent model of stroke. UPEI-300 produced dose-dependent neuroprotection in vitro and was subsequently tested in vivo. Male rats were anaesthetized and the middle cerebral artery was occluded for 30 min followed by 5.5 h of reperfusion (ischemia/reperfusion; I/R). Pre-administration of UPEI-300 dose-dependently decreased infarct volume. Significant neuroprotection was also observed when UPEI-300 (1.0 mg/kg) was injected during the 30 min period of ischemia as well as up to 60 min following the start of reperfusion. These results indicate that a co-drug consisting of edaravone and lipoic acid is a potent neuroprotectant, and clinically, the use of such a novel co-drug following an ischemic stroke might maintain neuroprotection while potentially decreasing edaravone associated renal toxicity.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Connell BJ,Saleh MC,Kucukkaya I,Abd-El-Aziz AS,Khan BV,Saleh TM

doi

10.1016/j.neulet.2013.12.060

subject

Has Abstract

pub_date

2014-02-21 00:00:00

pages

151-5

eissn

0304-3940

issn

1872-7972

pii

S0304-3940(13)01141-5

journal_volume

561

pub_type

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