慢性Toxoplasma gondii感染在成年人一生中调节听力能力
Stephan Getzmann1, Klaus Golka1, Peter Bröde1
1Leibniz Research Centre for Working Environment and Human Factors at TU Dortmund (IfADo), D-44139 Dortmund, Germany.
Life (Basel, Switzerland)
|February 24, 2024
概括
潜在的Toxoplasma gondii感染会影响整个生命周期的听力损失. 虽然最初对年轻人有保护作用,但它会加速老年人听力下降,特别是对于高频率的声音.
科学领域:
- 传染性疾病 传染性疾病
- 听力学 听力学是指听力学.
- 神经科学是一个神经科学.
背景情况:
- 先天性毒素菌与听力障碍有关.
- 慢性,潜伏的*Toxoplasma gondii*感染对听力损失的影响需要进一步调查.
研究的目的:
- 为了研究潜伏的*Toxoplasma gondii*感染对与年龄相关的听力损失的影响.
- 分析潜伏性毒素菌如何调节20至70岁之间的听力值.
主要方法:
- 来自多特蒙德生命研究 (NCT05155397) 的听力测量数据的回归分析.
- 在*T. gondii*IgG阳性 (n=162) 和IgG阴性 (n=430) 参与者之间的听力值的比较.
- 分析按年龄和频率范围分层 (低:0.125-1千赫;高: 2-8千赫).
主要成果:
- 隐性毒素菌与观察到的年龄范围内的听力损失发展加速有关.
- 在低频范围内,IgG阳性个体在40岁之前的听力损失较小.
- 在高频范围内,这种模式逆转,IgG阳性个体在65岁后会出现更多的听力损失.
结论:
- 潜在的T. gondii感染对听力功能具有复杂的,年龄相关的影响.
- 研究结果表明,潜在的毒素菌可能会在整个生命周期中对大脑功能产生不同的影响.
- 需要进一步的研究来阐明这些观察到的听力变化背后的机制.
相关概念视频
Hearing
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
Toxicity Testing in Animals
Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...


