NDLI: Enriched Endogenous Omega-3 Polyunsaturated Fatty Acids Protect Cortical Neurons from Experimental Ischemic Injury

Content Provider	Springer Nature Link
Author	Shi, Zhe Ren, Huixia Luo, Chuanming Yao, Xiaoli Li, Peng He, Chengwei Kang, Jing X Wan, Jian Bo Yuan, Ti Fei Su, Huanxing
Copyright Year	2015
Abstract	Omega-3 polyunsaturated fatty acids (n-3 PUFAs) exert therapeutic potential in a variety of neurological disorders, including ischemic stroke. However, the underlying mechanisms still lack investigation. Here, we report that cultured cortical neurons isolated from fat-1 mice with high endogenous n-3 PUFAs were tolerant to oxygen-glucose deprivation/reperfusion (OGD/R) injury. Fat-1 neurons exhibited significantly attenuated reactive oxygen species (ROS) activation induced by OGD/R injury, upregulated antiapoptotic proteins Bcl-2 and Bcl-xL, and reduced cleaved caspase-3. Exogenous administration of docosahexaenoic acid (DHA), a major component of the n-3 PUFA family, resulted in similar protective effects on cultured cortex neurons. We further verified the protective effects of n-3 PUFAs in vivo, using a mini ischemic model with a reproducible cortical infarct and manifest function deficits by occlusion of the distal branch of the middle cerebral artery with focused femtosecond laser pulses. The Fat-1 animals showed decreased ROS expression and higher level of glutathione in the injured brain, associated with improved functional recovery. We therefore provide evidence that n-3 PUFAs exert their protective effects against ischemic injury both in vitro and in vivo, partly through inhibiting ROS activation.
Starting Page	6482
Ending Page	6488
Page Count	7
File Format	PDF
ISSN	08937648
Journal	Molecular Neurobiology
Volume Number	53
Issue Number	9
e-ISSN	15591182
Language	English
Publisher	Springer US
Publisher Date	2015-11-26
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Omega-3 polyunsaturated fatty acids DHA Ischemia ROS Neurosciences Neurobiology Cell Biology Neurology
Content Type	Text
Resource Type	Article
Subject	Neurology 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
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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