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Morphological and histological studies of the adrenal gland in the Japanese quail (Coturnix japonica)
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2021-04-27 , DOI: 10.1002/jemt.23791
Sara M M El-Desoky 1 , Fatma El-Zahraa A Mustafa 1
Affiliation  

The adrenal gland is a vital endocrine gland that secretes many important hormones in everyday bird life. The adrenal gland of the Japanese quail is grossly located ventromedially the corresponding kidney and has a creamy to yellow color. The quail gland is surrounded by a capsule and contains some ganglionic cells, and the capsule is characterized by the presence of chromaffin cells. The adrenal gland is subdivided into three concentric zones: subcapsular, peripheral, and central. The parenchyma consists of interrenal tissue, chromaffin islets, and blood sinusoids. The interrenal cells contain lipid droplets, are arranged in cords, and rest on the basement membrane. Chromaffin cells are categorized as two types: epinephrine (E) and norepinephrine (NE) cells. These cells contain the granules, and are characterized by the presence of lipid droplets. In this study, the interrenal tissue was found to have a higher proportion of chromaffin cells in quail as compared with other birds, which is attributed to the fact that the Japanese quail is a migratory bird. Therefore, the present investigation aims to provide a detailed study on the adrenal gland in the Japanese quail to help physiologists understand the gland's function and the pathologist to determine the implications for the differential diagnosis of adrenal gland tumors.

中文翻译:

日本鹌鹑(Coturnix japonica)肾上腺的形态学和组织学研究

肾上腺是重​​要的内分泌腺,在日常鸟类生活中会分泌许多重要的激素。日本鹌鹑的肾上腺位于相应肾脏的腹内侧,呈奶油色至黄色。鹌鹑腺被荚膜包围,含有一些神经节细胞,荚膜的特点是存在嗜铬细胞。肾上腺被细分为三个同心区:囊下区、外周区和中央区。实质由肾间组织、嗜铬胰岛和血窦组成。肾间细胞含有脂滴,排列成索状,位于基底膜上。嗜铬细胞分为两类:肾上腺素 (E) 和去甲肾上腺素 (NE) 细胞。这些细胞含有颗粒,并以存在脂滴为特征。在这项研究中,发现与其他鸟类相比,鹌鹑的肾间组织具有更高比例的嗜铬细胞,这归因于日本鹌鹑是候鸟这一事实。因此,本研究旨在提供对日本鹌鹑肾上腺的详细研究,以帮助生理学家了解腺体的功能和病理学家确定对肾上腺肿瘤鉴别诊断的意义。
更新日期:2021-04-27
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