Comparison of gentamicin distribution in the inner ear following administration via the endolymphatic sac or round window.

Comparison of gentamicin distribution in the inner ear following administration via the endolymphatic sac or round window.
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通过内淋巴囊或圆窗给药后庆大霉素在内耳分布的比较

DOI:
10.1002/lary.21041
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发表时间:
2010-10
期刊:
影响因子:
2.6
通讯作者:
Yu, Yongfu
Yu, Yongfu
中科院分区:
医学2区
文献类型:
--
作者:
Zhang, Yiliang;Zhang, Ru;Dai, Chunfu;Steyger, Peter S.;Yu, Yongfu

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研究了庆大霉素在内耳中通过内淋巴囊(ES)或圆窗(RW)途径的分布。实验研究。采用荧光庆大霉素-德克萨斯红结合物(GTTR)来观察庆大霉素。将GTTR应用于ES或RW处理成年豚鼠,让动物恢复3天,然后使用共聚焦显微镜观察和量化耳蜗和前庭感觉上皮中的GTTR分布。当通过 ES 应用 GTTR 时,在前庭中观察到强 GTTR 标记,而在耳蜗中检测到很少的 GTTR (P < .0001)。然而,在 RW 应用后,在耳蜗和前庭中观察到明显的 GTTR 荧光 (P = .7967)。通过 ES 应用,耳蜗中的 GTTR 标记少于通过 RW 给药 (P < .0001)。 ES药物的应用可能更适合治疗顽固性梅尼埃病。
The distribution of gentamicin in the inner ear via the endolymphatic sac (ES) or round window (RW) routes was investigated. Experimental study. A fluorescent gentamicin-Texas Red conjugate (GTTR) was adopted to visualize the gentamicin. Adult guinea pigs were treated with GTTR applied to the ES or RW, the animals were allowed to recover for 3 days, then confocal microscopy was used to observe and quantify GTTR distributions in cochlear and vestibular sensory epithelium. When GTTR was applied via the ES, strong GTTR labeling was observed in the vestibule while little GTTR was detected in the cochlea (P < .0001). However, distinct GTTR fluorescence was observed in the cochlea and vestibule following RW application (P = .7967). There was less GTTR labeling in cochlea via ES application than through RW administration (P < .0001). ES drug application may be preferable for the treatment of intractable Meniere’s disease.
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