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首页> 外文期刊>African Journal of Biotechnology >Histological and histometrical changes of ostrich thyroid gland during summer and winter seasons in Tehran, Iran
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Histological and histometrical changes of ostrich thyroid gland during summer and winter seasons in Tehran, Iran

机译：伊朗德黑兰夏季和冬季鸵鸟甲状腺的组织学和组织学变化

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摘要

The seasonal changes of ostrich thyroid structure in Tehran, which has a hot summer and a relatively cold winter, were studied. The study was conducted on thyroid glands of 20 ostriches in two groups (summer and winter group). The samples were collected by autopsy with a maximum of 0.5 cm thickness and were fixed in 10% formalin saline. The samples were embedded in paraffin, sectioned at 5 to 6 μm, stained by Hematoxylin and Eosin method and examined under light microscope. The results showed that the seasons had a significant effect on thyroid parenchyma-stroma ratio. This ratio was significantly increased in winter. The number and diameter of thyroid follicles were increased in winter too. The histometrical results showed that the number of thyroid follicles, active follicles and follicles with vacuolated colloid were significantly increased in winter (p < 0.01). The diameters of large follicles and epithelium height of follicles were also increased in winter significantly (p < 0.01). However, the results showed that the parenchyma of thyroid glands was significantly increased in winter which is associated with increase in thyroid activity in winter.
机译：研究了夏季炎热而冬季相对寒冷的德黑兰鸵鸟甲状腺结构的季节性变化。该研究在两组（夏季和冬季组）中对20种鸵鸟的甲状腺进行了研究。通过尸检收集样品，最大厚度为0.5 cm，并固定在10％福尔马林盐水中。将样品包埋在石蜡中，切成5至6μm切片，用苏木精和曙红法染色，并在光学显微镜下检查。结果表明，季节对甲状腺实质间质比有显着影响。这个比例在冬季显着增加。冬季甲状腺滤泡的数量和直径也增加了。直方图结果表明，冬季甲状腺的卵泡，活动性卵泡和带空泡胶体的卵泡数量显着增加（p <0.01）。冬季大卵泡直径和卵泡上皮高度也明显增加（p <0.01）。但是，结果表明，冬季甲状腺的实质明显增加，这与冬季甲状腺活动的增加有关。

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