Changlong Z, Guangwei Z, Xuenong H, Xiaohui X, Xiaochuan S, Yanfeng X. The Role of Platelet-Derived Growth Factor Receptor in Early Brain Injury Following Subarachnoid Hemorrhage.
J Stroke Cerebrovasc Dis 2016;
25:2203-8. [PMID:
27397729 DOI:
10.1016/j.jstrokecerebrovasdis.2016.03.025]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 02/17/2016] [Accepted: 03/15/2016] [Indexed: 10/21/2022] Open
Abstract
OBJECTIVE
This study aims to observe encephaledema and cell apoptosis in rats following subarachnoid hemorrhage (SAH) and to explore the mechanism of platelet-derived growth factor receptor (PDGFR) in the development of early brain injury (EBI).
METHODS
Adult and male Sprague-Dawley rats were randomly divided into 4 groups: sham operation, SAH, SAH + imatinib, and SAH + platelet-derived growth factor-BB (PDGF-BB). SAH model was established using intravascular silk puncture of the internal carotid artery crotch. The SAH + imatinib group was treated with intraperitoneal injection of imatinib 1 hour before establishing the model. The SAH + PDGF-BB group was administered with intracerebroventricular injection of PDGF-BB 1 hour before establishing the model. The mortality, encephaledema, and nerve functional scoring were observed after 24 hours in all groups. The expression of caspase-3 in hippocampus was tested by reverse transcription polymerase chain reaction and Western blotting.
RESULTS
Mortality and encephaledema were the highest in the SAH + PDGF-BB group, which were alleviated when the rats were injected with imatinib (P < .01).
CONCLUSION
PDGFR may participate in the pathogenesis of EBI following SAH. The antagonist of PDGFR, imatinib, can reduce brain damage to some degree.
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