Reversing effect of histamine on neurotoxicity induced by beta-amyloid1-42 / 浙江大学学报·医学版
Journal of Zhejiang University. Medical sciences
; (6): 146-149, 2007.
Article
em Zh
| WPRIM
| ID: wpr-271559
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WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effects of histamine on the neurotoxicity induced by beta-amyloid(1-42)(Abeta42) in rat phaeochromocytoma (PC12) cells.</p><p><b>METHODS</b>The in vitro model of Alzheimer's disease was constructed with A beta42-treated PC12 cells. Cell morphology and MTT assay were used to evaluate the cell toxicity and histamine effects. The different histamine antagonists were applied to investigate the involvement of receptor subtypes.</p><p><b>RESULT</b>The neurotoxicity was induced by A beta42 in a concentration-dependent manner, which was reversed by histamine at concentration of 10(-7), 10(-6) mol/L. The effect was reversed by H(2) antagonist zolantidine and H(3)antagonist clobenpropit, but not by H(1) antagonist diphenhydramine.</p><p><b>CONCLUSION</b>Histamine reduces neurotoxicity induced by beta-amyloid(1-42), which may be mediated by H(2) and H(3)receptors.</p>
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Índice:
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Assunto principal:
Farmacologia
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Piperidinas
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Tioureia
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Receptores Histamínicos H2
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Histamina
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Peptídeos beta-Amiloides
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Células PC12
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Receptores Histamínicos H3
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Fármacos Neuroprotetores
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Difenidramina
Limite:
Animals
Idioma:
Zh
Revista:
Journal of Zhejiang University. Medical sciences
Ano de publicação:
2007
Tipo de documento:
Article