The response of the inducible isoform of the prostaglandin H2 synthase (COX-2) and the c-Jun N-terminal kinase (JNK) in post-ischemic neuronal damage was assessed in a model of ischemic tolerance in Mongolian Gerbils. After a single 6-min bilateral carotid occlusion, histological damage was evident in the CA1 region of hippocampus, correlated with a high expression of JNK and COX-2 mRNA. However, in the group of animals with a 2-min ischemia and the tolerance group, in which a 2-min bilateral carotid occlusion was followed 3 days later by a 6-min ischemia, no hippocampal or cortical damage was detected. Accordingly, the JNK and COX-2 mRNA levels remained unaffected. We suggest that the level of JNK and COX-2 expression may determine the outcome as either post-ischemic cell death or tolerance. © 2004 Elsevier B.V. All rights reserved.

Downregulation of COX-2 and JNK expression after induction of ischemic tolerance in the gerbil brain / Vittorio, Colangelo; William C., Gordon; Pranab K., Mukherjee; Trivedi, Pankaj; Paulo, Ottino. - In: BRAIN RESEARCH. - ISSN 0006-8993. - STAMPA. - 1016:2(2004), pp. 195-200. [10.1016/j.brainres.2004.05.017]

Downregulation of COX-2 and JNK expression after induction of ischemic tolerance in the gerbil brain

TRIVEDI, PANKAJ;
2004

Abstract

The response of the inducible isoform of the prostaglandin H2 synthase (COX-2) and the c-Jun N-terminal kinase (JNK) in post-ischemic neuronal damage was assessed in a model of ischemic tolerance in Mongolian Gerbils. After a single 6-min bilateral carotid occlusion, histological damage was evident in the CA1 region of hippocampus, correlated with a high expression of JNK and COX-2 mRNA. However, in the group of animals with a 2-min ischemia and the tolerance group, in which a 2-min bilateral carotid occlusion was followed 3 days later by a 6-min ischemia, no hippocampal or cortical damage was detected. Accordingly, the JNK and COX-2 mRNA levels remained unaffected. We suggest that the level of JNK and COX-2 expression may determine the outcome as either post-ischemic cell death or tolerance. © 2004 Elsevier B.V. All rights reserved.
2004
cerebral ischemia; cox-2; delayed neuronal death; disorders of the nervous system; hippocampus; ischemia; ischemic tolerance; jnk
01 Pubblicazione su rivista::01a Articolo in rivista
Downregulation of COX-2 and JNK expression after induction of ischemic tolerance in the gerbil brain / Vittorio, Colangelo; William C., Gordon; Pranab K., Mukherjee; Trivedi, Pankaj; Paulo, Ottino. - In: BRAIN RESEARCH. - ISSN 0006-8993. - STAMPA. - 1016:2(2004), pp. 195-200. [10.1016/j.brainres.2004.05.017]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/232450
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