Neuroprotective effect of calcitriol in systemic inflammation induced by lipopolysaccharide / 医学研究生学报
Journal of Medical Postgraduates
;
(12)2004.
Article
in Chinese
| WPRIM
| ID: wpr-588457
ABSTRACT
Objective:
To investigate neuroprotection of calcitriol in LPS-induced rat systemic inflammation and underlying mechanism.Methods:
Adult male Sprague-Dawley rats were randomized into three groups blank group(6 rats),calcitriol group [23 rats,4?g/(kg?d)?14d] and control group [23 rats,fat milk,4ml/(kg?d)?14d].46 rats were induced systemic inflammation by intraperitoneal injection of LPS(10mg/kg) on day 14th,1 hour after the administration.On post-injection 3,6,9 hour,36 rats were anesthetized to death and obtained rat brain tissue to detect activity of NF-?B by EMSA and to assess TNF-?,IL-10 concentration by ELISA.HE staining was used to determine brain injury.Results:
LPS effectively activated NF-?B,enhanced TNF-? expression,induced sporadic neurons damage in brain in the control group and in time-dependent,compared with blank group rats.Calcitriol significantly down-regulated NF-?B activity,TNF-? expression but enhanced IL-10 expression at all time point evaluated,compared with the control group rats.Conclusion:
Intraperitoneal injection of LPS can induce brain damage,Calcitriol modulate the inflammatory-antiinflammatory cytokine balance by downregulating activation of NF-?B,reducing over express of TNF-? and elevating IL-10 concentration.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Controlled clinical trial
Language:
Chinese
Journal:
Journal of Medical Postgraduates
Year:
2004
Type:
Article
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