Protective Effects of Cornel Iridoid Glycoside in Rats After Traumatic Brain Injury

Neurochemical Research
Denglei MaLin Li

Abstract

Cornel iridoid glycoside (CIG) is the active ingredient extracted from Cornus officinalis. Our previous studies showed that CIG had protective effects on several brain injury models. In the present study, we aimed to examine the effects and elucidate the mechanisms of CIG against traumatic brain injury (TBI). TBI was induced in the right cerebral cortex of male adult rats. The neurological and cognitive functions were evaluated by modified neurological severity score (mNSS) and object recognition test (ORT), respectively. The level of serum S100β was measured by an ELISA method. Nissl staining was used to estimate the neuron survival in the brain. The expression of proteins was determined by western blot and/or immunohistochemical staining. We found that intragastric administration of CIG in TBI rats ameliorated the neurological defects and cognitive impairment, and alleviated the neuronal loss in the injured brain. In the acute stage of TBI (24-72 h), CIG decreased the level of S100β in the serum and brain, increased the ratio of Bcl-2/Bax and decreased the expression of caspase-3 in the injured cortex. Moreover, the treatment with CIG for 30 days increased the levels of nerve growth factor (NGF) and brain-derived neurotrophic...Continue Reading

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Citations

Sep 22, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Xiangbao MengXiaobo Sun
Dec 11, 2020·Evidence-based Complementary and Alternative Medicine : ECAM·Ping LiuLan Zhang
Apr 4, 2021·International Journal of Molecular Sciences·David GustafssonElham Rostami
Aug 14, 2021·Acta Pharmaceutica Sinica. B·Anil AhsanXiangnan Zhang

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Methods Mentioned

BETA
ELISA
Protein Assay

Software Mentioned

SPSS

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