海水酸化对海鳉大脑含水量、凋亡和增殖的影响

IF 3.5 1区 生物学 Q1 ZOOLOGY Integrative zoology Pub Date : 2024-07-31 DOI:10.1111/1749-4877.12872
Jinling Xie, Baolin Li, Tangjian Zhou, Xiaojie Wang
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引用次数: 0

摘要

海洋酸化引起鱼类行为变化的一个可能解释是对神经系统的系统性影响。血脑屏障上的三道生物屏障有效地将大脑与体液隔开。与这些屏障接触的鱼类脑区是否会受到酸化的影响尚不清楚。在此,我们研究了青鳉接触脑脊液(CSF)的脑区在短期(7 天)接触二氧化碳后的结构变化。海水酸化后,脑含水量明显降低,脑桥的表层结构发生变化,但脑内部结构没有明显损伤。海水酸化还导致接触 CSF 的脑区细胞凋亡增加,增殖细胞数量减少。这些结果表明,青鳉与CSF接触的脑区结构受到海水酸化的影响,大脑通过增加细胞凋亡和减少细胞增殖来应对海水酸化压力。
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The water content, apoptosis, and proliferation of the brain in marine medaka affected by seawater acidification.

A possible explanation for ocean acidification-induced changes in fish behavior is a systemic effect on the nervous system. Three biological barriers at the blood-brain interface effectively separate the brain from the body fluids. It is not known whether fish brain regions in contact with these barriers are affected by acidification. Here, we studied structural changes in medaka (Oryzias melastigma) brain regions contacting cerebrospinal fluid (CSF) after short-term (7 days) CO2 exposure. The brain water content decreased significantly and the superficial structure of the pia mater was changed, but there was no obvious damage to the internal structures of the brain after seawater acidification. Seawater acidification also led to an increase in apoptosis and a decrease in the number of proliferative cells in brain areas contacting CSF. These results indicate that the structure of CSF-contacting brain regions in medaka was affected by seawater acidification, and the brain responded to seawater acidification stress by increasing apoptosis and reducing proliferation.

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来源期刊
CiteScore
6.40
自引率
12.10%
发文量
81
审稿时长
>12 weeks
期刊介绍: The official journal of the International Society of Zoological Sciences focuses on zoology as an integrative discipline encompassing all aspects of animal life. It presents a broader perspective of many levels of zoological inquiry, both spatial and temporal, and encourages cooperation between zoology and other disciplines including, but not limited to, physics, computer science, social science, ethics, teaching, paleontology, molecular biology, physiology, behavior, ecology and the built environment. It also looks at the animal-human interaction through exploring animal-plant interactions, microbe/pathogen effects and global changes on the environment and human society. Integrative topics of greatest interest to INZ include: (1) Animals & climate change (2) Animals & pollution (3) Animals & infectious diseases (4) Animals & biological invasions (5) Animal-plant interactions (6) Zoogeography & paleontology (7) Neurons, genes & behavior (8) Molecular ecology & evolution (9) Physiological adaptations
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