雏禽胚胎从扩散呼吸转变为对流呼吸过程中的血浆儿茶酚胺浓度。
Blood plasma catecholamine concentration of poult embryos during the transition from diffusive to convective respiration.
作者信息
Christensen V L, Edens F W
机构信息
Department of Poultry Science, North Carolina State University, Raleigh 27695-7608.
出版信息
Comp Biochem Physiol B. 1989;92(3):549-53. doi: 10.1016/0305-0491(89)90130-2.
PMID:2706944
Abstract
- Plasma catecholamines were determined in turkey embryos. 2. Decreased eggshell permeability depressed dopamine and epinephrine, but increased permeability also depressed epinephrine. 3. Norepinephrine (NE) was greatest before transition to convective respiration when hypoxia occurs. 4. NE was associated inversely with eggshell permeability. 5. Catecholamines appear to assist the embryo during hatching hypoxia.
摘要
- 测定了火鸡胚胎中的血浆儿茶酚胺。2. 蛋壳通透性降低会使多巴胺和肾上腺素减少，但通透性增加也会使肾上腺素减少。3. 当发生缺氧时，在转变为对流呼吸之前去甲肾上腺素（NE）含量最高。4. NE与蛋壳通透性呈负相关。5. 儿茶酚胺似乎在孵化期缺氧时对胚胎起到辅助作用。
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