Department of Biology, West Virginia University, Morgantown, WV, USA.
Fish Physiol Biochem. 2010 Dec;36(4):917-21. doi: 10.1007/s10695-009-9368-9. Epub 2009 Nov 19.
The neurohypophysial hormone arginine vasotocin (AVT) and the neuroendocrine system strongly interact with the rest of the teleostean endocrine system. The aim of this study is to investigate the effects of exposure to an endocrine disruptor on whole brain AVT concentrations for the pipefishes Syngnathus floridae and S. fuscus. Following treatment over the entire brood period, AVT concentrations were significantly higher for Aroclor 1254-exposed, post-brooding males compared to controls for both species. Considering both previously documented seventeen-fold increases in AVT for brooding males with embryos in some developmental stages and changes in parental nutrient concentrations after Aroclor 1254 exposure, these data begin to address potential physiological mechanisms that may underlie paternal activities in syngnathid males.
神经垂体激素精氨酸血管加压素（AVT）和神经内分泌系统与其他硬骨鱼类内分泌系统密切相关。本研究旨在探讨内分泌干扰物暴露对pipefish Syngnathus floridae 和 S. fuscus 全脑 AVT 浓度的影响。在整个繁殖期进行处理后，与对照组相比，Aroclor 1254 暴露的雄性亲鱼在繁殖后阶段的 AVT 浓度显著升高。考虑到先前有研究记录显示，在某些发育阶段有胚胎的亲鱼的 AVT 浓度增加了十七倍，以及 Aroclor 1254 暴露后亲鱼营养浓度的变化，这些数据开始探讨可能潜在的生理机制，这些机制可能是 syngnathid 雄性亲鱼发挥父性行为的基础。
