alexa Intracellular zinc is a critical intermediate in the excitotoxic cascade.
Cardiology

Cardiology

Atherosclerosis: Open Access

Author(s): Granzotto A, Sensi SL

Abstract Share this page

Abstract Excessive and sustained exposure to glutamate leads to injurious elevations of cytosolic calcium ([Ca(2+)]i), generation of reactive oxygen and nitrogen species (ROS, RNS), mitochondrial failure, mobilization of intracellular zinc ([Zn(2+)]i), and, ultimately, neuronal death. The relative contribution and temporal dynamics of the activation of these processes to promote the full development of excitotoxicity are still not completely understood. In this study, we exploited the unique features of nNOS positive neurons [nNOS (+)], a striatal subpopulation that is constitutively spared from NMDAR-dependent insults, and dissected NMDAR-driven [Ca(2+)]i, [Zn(2+)]i, ROS, and mitochondrial changes occurring in these neurons and the overall population of nNOS (-) striatal neurons. Comparing the two populations and employing pharmacological, biochemical, and single-cell imaging techniques, we show that [Zn(2+)]i mobilization acts as a critical intermediate in the cascade that links NMDAR-mediated ROS overproduction, mitochondrial failure, and [Ca(2+)]i deregulation to the production of neuronal damage. Results of this study may also provide the rationale for aiming at therapeutic agents that favor Zn(2+) homeostasis for the treatment of acute or chronic neurological conditions associated with excitotoxicity. Copyright © 2015 Elsevier Inc. All rights reserved. This article was published in Neurobiol Dis and referenced in Atherosclerosis: Open Access

Relevant Expert PPTs

Relevant Speaker PPTs

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

[email protected]

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

[email protected]

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001 Extn: 9042

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords