发育中的尾脂腺中的β-葡萄糖醛酸酶活性。
beta-Glucuronidase activity in the developing uropygial gland.
作者信息
Uva B M, Mandich A, Deplano S, Vallarino M, Isola G
出版信息
Acta Histochem. 1979;65(2):269-75. doi: 10.1016/s0065-1281(79)80016-1.
The presence of sterolic compounds and beta-glucuronidase activity have been studied in the uropygial glands of chick embryos (18th day of inc.), chickens (3 weeks after hatching) and young fowls (5 months old). Sterols are histochemically detectable only after hatching and beta-glucuronidase activity, very faint before hatching, reaches its maximum in chicken glands with a peculiar inner localization coincident with sterolic localization. It is suggested that beta-glucuronidase has in uropygial gland a double functional significance: a certain amount of activity is developed to cell proliferation whereas a more strong activity is involved in the hydrolysis of sterol glucuronides.
已对鸡胚（孵化第18天）、雏鸡（孵化后3周）和幼禽（5月龄）的尾脂腺中的甾醇类化合物和β-葡萄糖醛酸酶活性进行了研究。甾醇只有在孵化后才能通过组织化学方法检测到，β-葡萄糖醛酸酶活性在孵化前非常微弱，在鸡的腺体中达到最大值，其特殊的内部定位与甾醇定位一致。有人认为，β-葡萄糖醛酸酶在尾脂腺中具有双重功能意义：一定量的活性与细胞增殖有关，而更强的活性则参与甾醇葡萄糖醛酸苷的水解。
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