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Article Publish Status: FREE
Abstract Title:

The protection effect and mechanism of hyperbaric oxygen therapy in rat brain with traumatic injury.

Abstract Source:

Acta Cir Bras. 2018 Apr ;33(4):341-353. PMID: 29768537

Abstract Author(s):

Pengcheng Xing, Ke Ma, Lijuan Li, Donglian Wang, Guoyong Hu, Wei Long

Article Affiliation:

Pengcheng Xing

Abstract:

PURPOSE: To investigate the effect of hyperbaric oxygen therapy (HBOT) on traumatic brain injury (TBI) outcome.

METHODS: The modified Marmarou's weight drop device was used to generate non-lethal moderate TBI rat model, and further developed in vitro astrocytes culturing system. Then, we analyzed the expression changes of interested genes and protein by quantitative PCR and western blot.

RESULTS: Multiple HBO treatments significantly reduced the expression of apoptosis promoting genes, such as c-fos, c-jun, Bax and weakened the activation of Caspase-3 in model rats. On the contrary, HBOT alleviated the decrease of anti-apoptosis gene Bcl-2 and promoted the expression of neurotrophic factors (NTFs), such as NGF, BDNF, GDNF and NT-3 in vivo. As a consequent, the neuropathogenesis was remarkably relied with HBOT. Astrocytes from TBI brain or those cultured with 21% O2 density expressed higher NTFs than that of corresponding controls, from sham brain and cultured with 7% O2, respectively. The NTFs expression was the highest in astrocytes form TBI brain and cultured with 21% O2, suggesting a synergistic effect existed between TBI and the following HBO treatment in astrocytes.

CONCLUSION: Our findings provided evidence for the clinical usage of HBO treating brain damages.

Study Type : Animal Study

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