Curcumin attenuates blood-brain barrier disruption after subarachnoid hemorrhage in mice.
J Surg Res
; 207: 85-91, 2017 01.
Article
em En
| MEDLINE
| ID: mdl-27979493
BACKGROUND: Early brain injury, one of the most important mechanisms underlying subarachnoid hemorrhage (SAH), comprises edema formation and blood-brain barrier (BBB) disruption. Curcumin, an active extract from the rhizomes of Curcuma longa, alleviates neuroinflammation by as yet unknown neuroprotective mechanisms. In this study, we examined whether curcumin treatment ameliorates SAH-induced brain edema and BBB permeability changes, as well as the mechanisms underlying this phenomenon. METHODS: We induced SAH in mice via endovascular perforation, administered curcumin 15 min after surgery and evaluated neurologic scores, brain water content, Evans blue extravasation, Western blot assay results, and immunohistochemical analysis results 24 h after surgery. RESULTS: Curcumin significantly improved neurologic scores and reduced brain water content in treated mice compared with SAH mice. Furthermore, curcumin decreased Evans blue extravasation, matrix metallopeptidase-9 expression, and the number of Iba-1-positive microglia in treated mice compared with SAH mice. At last, curcumin treatment increased the expression of the tight junction proteins zonula occludens-1 and occludin in treated mice compared with vehicle-treated and sample SAH mice. CONCLUSIONS: We demonstrated that curcumin inhibits microglial activation and matrix metallopeptidase-9 expression, thereby reducing brain edema and attenuating post-SAH BBB disruption in mice.
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Texto completo:
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Base de dados:
MEDLINE
Métodos Terapêuticos e Terapias MTCI:
Terapias_biologicas
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Aromoterapia
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Plantas_medicinales
Assunto principal:
Hemorragia Subaracnóidea
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Edema Encefálico
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Barreira Hematoencefálica
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Fármacos Neuroprotetores
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Curcumina
Tipo de estudo:
Etiology_studies
Idioma:
En
Revista:
J Surg Res
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
China