Age-related impairment of ultrasonic vocalization in Tau.P301L mice: possible implication for progressive language disorders.

Age-related impairment of ultrasonic vocalization in Tau.P301L mice: possible implication for progressive language disorders.
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DOI:
10.1371/journal.pone.0025770
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Hilaire G
Hilaire G
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Menuet C;Cazals Y;Gestreau C;Borghgraef P;Gielis L;Dutschmann M;Van Leuven F;Hilaire G

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Tauopathies,包括阿尔茨海默病,是老年人中最常见的神经退行性疾病,并导致各种认知、行为和运动缺陷,以及进行性语言障碍。对于交流和社会互动,小鼠通过喉部的呼气气流产生超声波发声(USV)。我们检查了Tau.P301L小鼠的USV,Tau.P301L小鼠是表达人突变tau蛋白并发展认知、运动和上呼吸道缺陷的tau蛋白病小鼠模型。在4-5个月大时,Tau.P301L小鼠具有正常USV、正常呼气气流并且没有脑干tau病变。在8-10个月大时,Tau.P301L小鼠在导水管周围灰质、Kolliker-taglius核和疑后核中表现出USV受损、呼气气流减少和严重的tau病变。控制上呼吸道功能和发声的这些核团中的Tau病与老年Tau. P301 L小鼠的USV损伤密切相关。在tau蛋白病的小鼠模型中,我们首次报告了与年龄相关的USV损伤,该损伤与控制发声的中脑和脑干区域的tau蛋白病相关。老年Tau.P301L小鼠的发声障碍可能至少部分地让人想起患有tau蛋白病的老年人的语言障碍。
Tauopathies, including Alzheimer's Disease, are the most frequent neurodegenerative diseases in elderly people and cause various cognitive, behavioural and motor defects, but also progressive language disorders. For communication and social interactions, mice produce ultrasonic vocalization (USV) via expiratory airflow through the larynx. We examined USV of Tau.P301L mice, a mouse model for tauopathy expressing human mutant tau protein and developing cognitive, motor and upper airway defects. At age 4–5 months, Tau.P301L mice had normal USV, normal expiratory airflow and no brainstem tauopathy. At age 8–10 months, Tau.P301L mice presented impaired USV, reduced expiratory airflow and severe tauopathy in the periaqueductal gray, Kolliker-Fuse and retroambiguus nuclei. Tauopathy in these nuclei that control upper airway function and vocalization correlates well with the USV impairment of old Tau.P301L mice. In a mouse model for tauopathy, we report for the first time an age-related impairment of USV that correlates with tauopathy in midbrain and brainstem areas controlling vocalization. The vocalization disorder of old Tau.P301L mice could be, at least in part, reminiscent of language disorders of elderly suffering tauopathy.
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