瓦尔酸暴露会影响斑马鱼幼虫的社会视觉横向化和不对称基因表达
Andrea Messina1, Valeria Anna Sovrano2, Greta Baratti1
1Center for Mind/Brain Sciences, University of Trento, Piazza della Manifattura 1, 38068, Rovereto, TN, Italy.
Scientific reports
|February 23, 2024
概括
斑马鱼暴露在瓦尔酸 (VPA) 中会破坏社会行为和大脑不对称性,特别影响视觉横向化和 habenula 发育. 这项研究提供了关于神经发育障碍和大脑侧向化的见解.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 行为科学 行为科学
背景情况:
- 大脑不对称对于大脑功能和发育至关重要.
- 改变的大脑侧面化与神经精神疾病有关.
- 斑马鱼是研究大脑侧面化的有价值模型,特别是 habenula 在社会和情绪处理中的作用.
研究的目的:
- 调查烯酸 (VPA) 暴露对斑马鱼社会行为,视觉横向化和基因表达的影响.
- 探索VPA诱导的大脑不对称性和非典型的社会认知发展之间的关系.
主要方法:
- 斑马鱼胚胎被暴露在VPA中.
- 评估了社会互动,视觉横向化 (对镜像的反应) 和大脑和大脑中基因表达.
- 在成年斑马鱼中分析了 habenula 的形态变化.
主要成果:
- 暴露于VPA的斑马鱼表现出社会缺陷和失去典型的视觉横向化.
- 观察到表皮层标记物"剩余物"的不对称表达的显著变化.
- 在暴露于VPA的成年斑马鱼中,观察到 habenula 背侧部分的大小的变化.
- 暴露于VPA中和了动物的视野偏差,导致在查看镜像时失去左眼偏好.
结论:
- 斑马鱼的VPA暴露导致社会缺陷,并破坏大脑不对称性,影响基因表达和habenula形态.
- 这些发现突出了斑马鱼作为研究大脑横向化和非典型社会认知发展之间的联系的模型的潜力.
- 这项研究为研究神经发育障碍及其潜在的大脑横向化机制开辟了新的途径.
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