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Brain Res Bull. 2011 Feb 1;84(2):163-8. doi: 10.1016/j.brainresbull.2010.11.015. Epub 2010 Dec 4.

Salvianolic acid B attenuates brain damage and inflammation after traumatic brain injury in mice.

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Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province 710032, People's Republic of China.


Salvianolic acid B (SalB), a bioactive compound isolated from the Chinese medicinal herb Danshen, has been shown to exert various anti-oxidative and anti-inflammatory activities in in vitro and in vivo studies. Here, we investigated the protective effects of SalB on traumatic brain injury (TBI) in mice. When administered within 2 h after TBI onset, SalB (25 mg/kg) reduced brain edema, lesion volume and motor functional deficits, and improved spatial learning and memory abilities. Moreover, SalB treatment inhibited the neutrophil infiltration and microglial activation at 48 h after TBI. Enzyme-linked immunosorbent assay (ELISA) for brain tissue homogenates was performed at 24 h after TBI to evaluate the expression of inflammation-related cytokines. The results showed that SalB suppressed the expression of pro-inflammatory cytokines TNF-α and IL-1β, whereas enhanced the expression of anti-inflammatory cytokines IL-10 and TGF-β1. All of these findings extended the protective role of SalB in the model of TBI and suggested that these protective effects might be associated with its anti-inflammatory activities. Thus SalB may have therapeutic potential for patients with TBI and perhaps other forms of acute brain injury.

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