2008Chinese Journal of Neurosurgical Disease ResearchRequires access

Bcl-2 mRNA expression in hippocampus of mice exposed to infrasound

Xiang Mou

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Abstract

Objective To explore the change of bcl-2 mRNA in the hippocampus of mice exposed to infrasound of different sound levels.Methods BALB/C mice were exposed to infrasound of 16 Hz,90/130 dB for 2 h everyday with exposure time of 1,7,14,21 and 28 d respectively.In situ hybridization was used to study the expression of bcl-2 mRNA in hippocampus.Results Reaction of 130 dB group was more intense than that of 90 dB group.While under the same sound pressure level,bcl-2 mRNA in hippocampus increased with the increase of exposure time.Conclusion Hippocampus is sensitive to the infrasound.With the effects on bcl-2 mRNA,infrasound may cause damage to brain,which is one important factor for the brain injury caused by infrasound.The effect is related to the sound pressure level and exposure time.

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Objective To explore the change of bcl-2 mRNA in the hippocampus of mice exposed to infrasound of different sound levels.Methods BALB/C mice were exposed to infrasound of 16 Hz,90/130 dB for 2 h everyday with exposure time of 1,7,14,21 and 28 d respectively.In situ hybridization was used to study the expression of bcl-2 mRNA in hippocampus.Results Reaction of 130 dB group was more intense than that of 90 dB group.While under the same sound pressure level,bcl-2 mRNA in hippocampus increased with the increase of exposure time.Conclusion Hippocampus is sensitive to the infrasound.With the effects on bcl-2 mRNA,infrasound may cause damage to brain,which is one important factor for the brain injury caused by infrasound.The effect is related to the sound pressure level and exposure time.

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Available abstract

Objective To explore the change of bcl-2 mRNA in the hippocampus of mice exposed to infrasound of different sound levels.Methods BALB/C mice were exposed to infrasound of 16 Hz,90/130 dB for 2 h everyday with exposure time of 1,7,14,21 and 28 d respectively.In situ hybridization was used to study the expression of bcl-2 mRNA in hippocampus.Results Reaction of 130 dB group was more intense than that of 90 dB group.While under the same sound pressure level,bcl-2 mRNA in hippocampus increased with the increase of exposure time.Conclusion Hippocampus is sensitive to the infrasound.With the effects on bcl-2 mRNA,infrasound may cause damage to brain,which is one important factor for the brain injury caused by infrasound.The effect is related to the sound pressure level and exposure time.

Key concepts: Infrasound, Hippocampus, Messenger RNA, In situ hybridization, Internal medicine, Biology, Endocrinology, Medicine

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