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Synthesis of a Stress Protein Following Transient Ischemia in the Gerbil
Author(s) -
Nowak Thaddeus S.
Publication year - 1985
Publication title -
journal of neurochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.75
H-Index - 229
eISSN - 1471-4159
pISSN - 0022-3042
DOI - 10.1111/j.1471-4159.1985.tb07236.x
Subject(s) - gerbil , ischemia , kilodalton , protein biosynthesis , translation (biology) , stimulation , protein expression , in vitro , biology , medicine , chemistry , biochemistry , endocrinology , messenger rna , gene
In vitro translation products of gerbil brain preparations, obtained from animals killed during recirculation following transient ischemia, showed increased synthesis of a 70‐kilodalton stress protein, identified by two‐dimensional gel electrophoresis. Stimulation of stress protein synthesis was evident as early as 2 h after recirculation, at which time overall translation activity remained low. Expression of the 70‐kilodalton protein reached a maximum at 8 h recirculation, when incorporation into other translation products had returned to essentially control levels. Increased incorporation into the stress protein was still detectable after 24 h recirculation. Although the functional consequences of increased expression of this stress protein remain unknown, these results suggest that the gerbil ischemia model may provide a useful experimental system in which to study the involvement of this phenomenon in processes related to postischemic cell damage and recovery.