不同年龄喜马拉雅旱獭肾上腺皮质超微结构与功能的比较研究  

COMPARATIVE STUDIES ON THE ADRENAL CORTEX ULTRASTRUCTURE AND THE FUNCTION OF MARMOT A HIMALAYANA

作　　者：陈钦铭 叶于聪 

机构地区：[1]青海省高原医学科学研究所,西宁810012

出　　处：《兽类学报》1993年第2期92-97,159,共6页Acta Theriologica Sinica

摘　　要：本文报道了饲养于海拔3300米地区,室温5—20℃未冬眠的24只喜马拉雅旱獭(幼年、成年与老年)肾上腺的某些生理参数、肾上腺内胆固醇含量、血浆中皮质醇与醛固酮水平、肾上腺皮质球状带、束状带、网状带超微结构特点,以及应用立体计量分析方法,对3个年龄组的球状带细胞线粒体、脂滴与高尔基复合体的体积密度进行了比较分析。结果表明:老年组与幼年组和成年组相比,上述各项指标数值均下降,且有显著性差异;其皮质激素合成方式则以经滑面内质网或溶酶体的酯酶作用为主,且功能有所减退,其网状带结构呈现衰老、变性征象。This paper reports 24 unhibernation Marmota himalayana which were reared in temperature 5-20℃ room of altitude 3 300 m district. The authors divide it into three age groups (juvenile, adult, old). Adrenal weight,the cholesterol contents of adrenal, the plasma level of hydrocortisone and aldosterone, the variation of mitochondria, lipid droplets and Golgi apparatus of zona glomerulosa as well as the ultrastructure of the zona glomerulosa, zona fasciculate and zona reticularis of adrenal cortex were deter-mind respectively. The results indicated the comparison between the old and juvenile or the old and adult presented the decrease of AW/BW, the decrease of adrenal cholesterol contents (see table l),the decrease of hydrocortisone and aldosterone in plasma level (see table 2),the decrease of number and size of mitochondria, lipid droplets,Golgi apparatus in zona glomerulosa (see table 3). The synthesis of adrenocortical hormone was depened mainly the esterase in SER and lysosomes in the cytoplasm, the synthesis function decreased and the zona reticularis presented degeneration in the old.

关 键 词：喜马拉雅旱獭 肾上腺皮质 旱獭 

分 类 号：Q959.834[生物学—动物学]