Influence of age on norepinephrine content in arteries and veins of fischer 344 rats

Influence of age on norepinephrine content in arteries and veins of fischer 344 rats
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年龄对fischer 344大鼠动静脉去甲肾上腺素含量的影响

DOI:
10.1016/0197-4580(87)90125-4
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发表时间:
1987
影响因子:
4.2
通讯作者:
S. Duckles
S. Duckles
中科院分区:
医学2区
文献类型:
--
作者:
R. K. Handa;S. Duckles

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采用氧化铝提取、高效液相色谱分离后电化学检测法测定6、12、20、27月龄雄性Fischer 344大鼠血管去甲肾上腺素含量。除上级肠系膜动脉显示去甲肾上腺素含量无年龄相关变化和尾动脉显示从12月龄至27月龄增加外,检查的所有其他动脉(肾动脉、股动脉、隐动脉、腹壁浅动脉和腘动脉)显示去甲肾上腺素含量随年龄增长显著下降。与此相反,去甲肾上腺素的含量在肾,股,隐静脉和上级肠系膜静脉保持不变,在所有年龄。由于血管壁中的去甲肾上腺素主要定位于交感神经末梢,因此老年大鼠大多数动脉中去甲肾上腺素含量的下降可能反映了交感神经元密度的选择性降低,或者反映了这些交感神经末梢的代谢特性的年龄相关性改变。
The norepinephrine content of blood vessels in male Fischer 344 rats aged 6, 12, 20 and 27 months was measured by electrochemical detection after alumina extraction and high-performance liquid chromatography separation. With the exception of the superior mesenteric artery which showed no age-related changes in norepinephrine content and the caudal artery which showed an increase from 12 to 27 months of age, all other arteries examined (renal, femoral, saphenous, superficial epigastric, and popliteal) showed a significant decline in norepinephrine content with advancing age. In contrast, the content of norepinephrine in the renal, femoral, saphenous and superior mesenteric veins remained constant at all ages. Since norepinephrine in the blood vessel wall is predominantly localized to sympathetic nerve endings, the decline in norepinephrine content in most arteries of old rats may reflect a selective decrease in the density of sympathetic neurons or alternatively an age-related alteration in the metabolic properties of these sympathetic nerve endings.
雄性和雌性 F344 大鼠外周器官儿茶酚胺含量与年龄相关的变化。
DOI: 10.1093/geronj/36.3.280
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年龄对费舍尔大鼠交感神经系统活动基础和饮食诱导变化的影响。
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DOI: --
发表时间: 1985
期刊: The Journal of pharmacology and experimental therapeutics
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年龄对大鼠颈静脉β肾上腺素能舒张的影响。
DOI: --
发表时间: 1986
期刊: The Journal of pharmacology and experimental therapeutics
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作者:
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通讯作者: Hurlbert,JS