Cardiac transplantation: expectations and limitations.
Cardiac transplantation: expectations and limitations.
复制标题
心脏移植：期望和限制。
DOI：
10.1016/s0006-291x(88)80414-5
复制
发表时间：
1981
期刊：
影响因子：
--
通讯作者：
R. Lower
中科院分区：
文献类型：
--
作者：
A. Hastillo;M. Hess;R. Lower
在哺乳动物垂体前叶中，含垂体细胞的定位存在一定的异质性。由于垂体激素浓度存在年龄相关变化，因此本研究旨在探索雄性大鼠中的此类变化是否具有区域一致性。结果表明，在免疫反应LH，FSH，催乳素和TSH的存在下，有明确的地理模式。在2岁的男性中，存在激素浓度的特定区域下降。除一个区域外，当数值以总激素含量表示时，情况并非如此。在最尾侧条的内侧区域仍出现促性腺激素下降。结果表明，随着年龄的增长，有一个位移的垂体和促性腺激素细胞，这种效果似乎是更加突出的内中尾区的含垂体细胞。
Some heterogeneity in the localization of hormone-containing cells has been reported in the mammalian anterior pituitary. Since age-related changes are present in pituitary hormone concentrations, the present study was designed to explore if such changes in the male rat are regionally consistent. The results show clear geographic patterns in the presence of immunoreactive LH, FSH, prolactin and TSH. In the two year-old male, specific regional declines in hormone concentrations were present. With one regional exception, such was not the case when values were expressed in total hormonal content. A fall in gonadotropins still appeared in the medial area of the most caudal strip. The results suggest that with age, there is a displacement of hormone-containing cells in the pituitary and that for the gonadotropes this effect appears to be more prominent within the medio-caudal area.