| Literature DB >> 16298783 |
Jiangping Zhang1, Zhenhui Peng, Miaoli Yang, Xianghong Zhang, Junrong Wei, Min Xu, Qing Yin Zheng.
Abstract
Reduction in bone formation may have been the main reason for the lower calcium content of the otoconia after simulated weightlessness in rats. The head-ward distribution of blood volume may explain the morphological changes observed in the middle and inner ears. To observe morphological changes in the vestibular organs and measure the calcium content of otoconia in rats after simulated weightlessness. We used a tail suspension model of simulated weightlessness and then investigated changes in the vestibular organs using scanning electron microscopy and X-ray microanalysis. In comparison to untreated rats, the vestibular otoconia of the rats subjected to simulated weightlessness were small, irregularly shaped or fissured, and were arranged loosely and out of order. In addition, the calcium content of the otoconia was markedly decreased.Entities:
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Year: 2005 PMID： 16298783 PMCID： PMC2858292 DOI： 10.1080/00016480510037915
Source DB: PubMed Journal: Acta Otolaryngol ISSN： 0001-6489 Impact factor: 1.494