NDLI: Remote Ischemic Postconditioning Promotes the Survival of Retinal Ganglion Cells after Optic Nerve Injury

Content Provider	Springer Nature Link
Author	Liu, Xia Sha, Ou Cho, Eric Y. P.
Copyright Year	2013
Abstract	Ischemic conditioning, the application of a mild ischemic stimulus to an ischemia-sensitive structure like the heart or brain either before (preconditioning) or after (postconditioning) its exposure to a lethal ischemic insult, is known to switch on endogenous protective mechanisms. However, most studies of its neuroprotective effect in the central nervous system (CNS) have focused on ischemic damage or related conditions like hypoxia, while its potential in treating other neural diseases remains uncertain. In particular, the recent discovery of remote ischemic postconditioning whereby mild ischemia applied to a region remote from the target after the main ischemic insult also confers protection offers an attractive paradigm to study its potential in other types of neural injury. Retinal ganglion cells damaged by optic nerve transection undergo extensive cell death. However, application of a series of mild ischemic/reperfusion cycles to the hind limb (limb remote ischemic postconditioning) at 10 min or 6 h after optic nerve cut was found to promote ganglion cell survival at 7 days post-injury, with the 10 min postconditioning still exerting protection at 14 days post-injury. Concomitant with the increased ganglion cell survival, 51 % more ganglion cells expressed the small heat shock protein HSP27, when remote ischemic postconditioning was performed at 10 min post-injury, as compared to the sham conditioning group. Our results highlight the potential of using remote ischemic postconditioning as a noninvasive neuroprotective strategy in different CNS disorders like spinal cord and traumatic brain injury.
Starting Page	639
Ending Page	646
Page Count	8
File Format	PDF
ISSN	08958696
Journal	Journal of Molecular Neuroscience
Volume Number	51
Issue Number	3
e-ISSN	15591166
Language	English
Publisher	Springer US
Publisher Date	2013-06-05
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Retinal ganglion cell Optic nerve Remote ischemic postconditioning Neuroprotection Neurosciences Neurochemistry Cell Biology Proteomics Neurology
Content Type	Text
Resource Type	Article
Subject	Medicine Cellular and Molecular Neuroscience

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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