Tolivia D, Antolín I, Menéndez-Peláez A, Rodríguez-Colunga M J
Departamento de Morfología y Biología Celular, Universidad de Oviedo,Spain.
Anat Rec. 1992 Nov;234(3):438-42. doi: 10.1002/ar.1092340313.
The Harderian gland of the degu (Octodon degus) is composed of tubulo-alveolar secretory units that share most of morphological features found in the Harderian glands of other rodents. However, a peculiar characteristic observed in the glands of female degus is the existence of lymphoid cell clusters within the connective tissue surrounding the secretory adenomeres. Lymphocytes and lymphoblasts are found associated with blood vessels and especially with nerve bundles in the medullary region of the gland. Occasionally, macrophages and plasma cells are also observed. Although the Golgi apparatus appears well developed, the ultrastructural characteristics of most of these lymphoid elements correspond to those of inactive lymphocytes. Unmyelinated fibers containing clear and dense-core vesicles are found closely related to lymphocytes. On some occasions, lymphocytes present extensive areas of apposition with structures resembling intercellular junctions. The analogy of the lymphoid clusters reported in this study with those described in the avian Harderian gland is discussed.
八齿鼠（Octodon degus）的哈德氏腺由管泡状分泌单位组成，这些单位具有其他啮齿动物哈德氏腺的大多数形态学特征。然而，在雌性八齿鼠的腺体中观察到一个特殊特征，即围绕分泌性腺小叶的结缔组织内存在淋巴样细胞簇。在腺体髓质区域，淋巴细胞和淋巴母细胞与血管相关，特别是与神经束相关。偶尔也会观察到巨噬细胞和浆细胞。尽管高尔基体看起来发育良好，但这些淋巴样细胞的大多数超微结构特征与静止淋巴细胞的特征相符。含有清亮和致密核心囊泡的无髓纤维与淋巴细胞密切相关。在某些情况下，淋巴细胞与类似细胞间连接的结构有广泛的贴附区域。本文讨论了本研究中报道的淋巴样簇与鸟类哈德氏腺中描述的淋巴样簇的相似性。
