| Aircraft noise exposure affects rat behavior, plasma norepinephrine levels, and cell morphology of the temporal lobe. | |
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MedLine Citation:
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PMID: 22135145 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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In order to investigate the physiological effects of airport noise exposure on organisms, in this study, we exposed Sprague-Dawley rats in soundproof chambers to previously recorded aircraft-related noise for 65 d. For comparison, we also used unexposed control rats. Noise was arranged according to aircraft flight schedules and was adjusted to its weighted equivalent continuous perceived noise levels (L(WECPN)) of 75 and 80 dB for the two experimental groups. We examined rat behaviors through an open field test and measured the concentrations of plasma norepinephrine (NE) by high performance liquid chromatography-fluorimetric detection (HPLC-FLD). We also examined the morphologies of neurons and synapses in the temporal lobe by transmission electron microscopy (TEM). Our results showed that rats exposed to airport noise of 80 dB had significantly lower line crossing number (P<0.05) and significantly longer center area duration (P<0.05) than control animals. After 29 d of airport noise exposure, the concentration of plasma NE of exposed rats was significantly higher than that of the control group (P<0.05). We also determined that the neuron and synapsis of the temporal lobe of rats showed signs of damage after aircraft noise of 80 dB exposure for 65 d. In conclusion, exposing rats to long-term aircraft noise affects their behaviors, plasma NE levels, and cell morphology of the temporal lobe. |
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Authors:
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Guo-Qing Di; Bing Zhou; Zheng-Guang Li; Qi-Li Lin |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of Zhejiang University. Science. B Volume: 12 ISSN: 1862-1783 ISO Abbreviation: J Zhejiang Univ Sci B Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-02 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101236535 Medline TA: J Zhejiang Univ Sci B Country: China |
Other Details:
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Languages: eng Pagination: 969-75 Citation Subset: IM |
Affiliation:
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Institute for Environmental Pollution Control Technology, Zhejiang University, Hangzhou 310058, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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