Nonheme-Iron Deposition in the Hypothalamo-Neurohypophyseal System of the Rat Brain
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概要
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The localizations of nonheme-Fe（ III） and Fe（ II） were studied in the hypothalamo-neurohypophysealsystem of the rat brain by light and electron microscopic nonheme iron-histochemistry. Fe （III）-deposit was heavilyaccumulated in the parvocellular part of the hypothalamic paraventricular nucleus（ HPV）, where numerous glias werestained. Fe（ III）-deposit heavily fi lled the cytosol and lysosomes of microglia-, oligodendrocyte- and astrocyte-like cells,while neurons contained only a small number of Fe（ III）-laden lysosomes. Fine processes of Fe（ III）- laden microglia- andoligodendrocyte-like cells closely ensheathed the cell body and proximal dendrites of neurons. Fe （III）-laden astrocytelikecells tightly enclosed the capillary wall. The magnocellular part of the HPV and the supraoptic nucleus were lessintensely stained than the parvocellular part of the HPV. The secretory axon terminals in the outer lamina of the medianeminence（ ME） and the posterior pituitary including the Herring bodies contained Fe（ III）-laden small lysosomes amongdensely aggregated secretory granules. The secretory axon terminals in the ME were tightly enclosed by heavily Fe（III）-laden processes of tanycyte. The heavily Fe（ III）-laden pituicytes and interstitial, pericapillary phagocytes closelyapproached the secretory axon terminals in the posterior pituitary. Fe （II） was largely localized in the lysosomesthroughout the hypothalamo-neurohypophyseal system.
著者
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Li Chengtai
Department of Neuroanatomy, Cell Biology and Histology, Hirosaki University Graduate School of Medic
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Odagiri Saori
Department of Neuroanatomy, Cell Biology and Histology, Hirosaki University Graduate School of Medic
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Meguro Reiko
Department of Neuroanatomy, Cell Biology and Histology, Hirosaki University Graduate School of Medic
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Asano Yoshiya
Department of Neuroanatomy, Cell Biology and Histology, Hirosaki University Graduate School of Medic
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Shoumura Kazuhiko
Department of Neuroanatomy, Cell Biology and Histology, Hirosaki University Graduate School of Medic
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Li Chengtai
Department Of Neuroanatomy Cell Biology And Histology Hirosaki University Graduate School Of Medicin
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Meguro Reiko
Department Of Neuroanatomy Cell Biology And Histology Hirosaki University Graduate School Of Medicin
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Asano Yoshiya
Department Of Neuroanatomy Cell Biology And Histology Hirosaki University Graduate School Of Medicin
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Asano Yoshiya
Department Of Biological And Chemical Engineering Faculty Of Engineering Gunma University
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Odagiri Saori
Department Of Neuroanatomy Cell Biology And Histology Hirosaki University Graduate School Of Medicin
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Shoumura Kazuhiko
Department Of Neuroanatomy Cell Biology And Histology Hirosaki University Graduate School Of Medicin
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Shoumura Kazuhiko
Department Of Anatomy Hirosaki University School Of Medicine
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李 成泰
Department of Neuroanatomy, Cell Biology and Histology, Hirosaki University Graduate School of Medicine
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小田桐 紗織
Department of Neuroanatomy, Cell Biology and Histology, Hirosaki University Graduate School of Medicine
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目黒 玲子
Department of Neuroanatomy, Cell Biology and Histology, Hirosaki University Graduate School of Medicine
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