Neurological research · 2007
Bumetanide administration attenuated traumatic brain injury through IL-1 overexpression.
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Lu Kwok-Tung, Wu Chang-Yen, Yen Hao-Han, Peng Jeng-Hsiung F, Wang Chi-Ling, Yang Yi-Ling
Аннотация
OBJECTIVE: To examine the effects of administration of bumetanide, a specific NKCC1 inhibitor, on traumatic brain injury (TBI)-induced interleukin-1 (IL-1) expression.
METHODS: TBI model was induced by the calibrated weight drop device (450 g in weight, 2.0 m in height) in adult rats based on procedures previously reported. One hundred and sixty Wistar rats were divided into sham-control group and experimental group for time course works of TBI. The expression of IL-1beta brain edema and neuronal damage were determined in these animals after TBI.
RESULTS: We found that both mRNA and protein of IL-1beta were up-regulated in the hippocampus 3-24 hours after TBI. Animals displayed severe brain edema and neuron damage after TBI. Bumetanide (15 mg/kg), a specific Na(+) -K(+) -2Cl(-) cotransporter inhibitor, significantly attenuated the TBI-induced neuronal damage by IL-1beta overexpression. The present study suggests that administration of bumetanide could significantly decreased TBI-induced inflammatory response and neuronal damage.
METHODS: TBI model was induced by the calibrated weight drop device (450 g in weight, 2.0 m in height) in adult rats based on procedures previously reported. One hundred and sixty Wistar rats were divided into sham-control group and experimental group for time course works of TBI. The expression of IL-1beta brain edema and neuronal damage were determined in these animals after TBI.
RESULTS: We found that both mRNA and protein of IL-1beta were up-regulated in the hippocampus 3-24 hours after TBI. Animals displayed severe brain edema and neuron damage after TBI. Bumetanide (15 mg/kg), a specific Na(+) -K(+) -2Cl(-) cotransporter inhibitor, significantly attenuated the TBI-induced neuronal damage by IL-1beta overexpression. The present study suggests that administration of bumetanide could significantly decreased TBI-induced inflammatory response and neuronal damage.