[Structural–Functional Condition of the Thyroid Gland of Red Deer at Different Stages of Postnatal Ontogenesis].

Ontogenez Pub Date : 2016-11-01
N D Ovcharenko, O E Vlasova, O G Gribanova
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Abstract

The histological structure and morphometric and some histochemical indices of thyroid gland of maral as a subspecies of red deer at the postnatal stage of ontogenesis were studied. It was established that the gland was structurally formed by the time of the birth. C-cells are detected at 6 months of age. With age, the ratio of follicles of different sizes changed: smaller forms predominate in newborns and those 6 months old, medium and large predominate in adults and in old deer. Histological, morphometric, and histochemical data indicate to activation of the thyroid gland in the period of intensive growth for up to 6 months and a gradual decrease in activity over the next years of life. During aging, along with an increase in stromal elements, large follicles with colloid are stretched and resorption processes in the follicles are reduced.

[马鹿出生后个体发育不同阶段甲状腺结构功能状况]。
本文研究了马鹿亚种马鹿在个体发生后甲状腺的组织结构、形态计量学和一些组织化学指标。已经确定腺体在出生时就已经形成了结构。在6个月大时检测到c细胞。随着年龄的增长,不同大小的卵泡的比例也发生了变化:新生鹿以较小的形态为主,6月龄鹿以较小的形态为主,成年鹿和老年鹿以中、大形态为主。组织学、形态计量学和组织化学数据表明,甲状腺在长达6个月的密集生长期间激活,并在接下来的几年中逐渐减少活动。在衰老过程中,随着基质成分的增加,含有胶体的大卵泡被拉伸,卵泡中的吸收过程减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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