Ultrastructure of the Dorsal Skins of Hairless Descendants Derived from Mexican Hairless Dogs
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概要
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Ultrastructural characteristics of the dorsal skin of hairless descendants derived from Mexican hairless dogs (3-month-, 1-year-and 5-year-old) were investigated and compared with those of age-matched beagles. Except that beagles had no melanocytes in epidermis, there was no essential difference in ultrastructural characteristics of epidermis between hairless dogs and beagles. In the Stratum basale of epidermis of hairless dogs, a small number of melanocytes and a few Langerhans cell (LC)-like cells were observed among keratinocytes. Melanocytes contained many melanosomes and a few premelanosomes. LC-like cells were characterized by electron-lucent cytoplasm and lobulated nucleus and lacked melanin granules, tonofilaments and desmosomal attachments. Unlike LC in humans and rodents, these LC-like cells did not contain Birbeck granules. Although age-related ultrastructural changes of dorsal skin were generally not clear both in hairless dogs and in beagles, cells containing melanin granules were not infrequently observed among dermal collagen bundles in 5-year-old hairless dogs.
- 社団法人 日本実験動物学会の論文
- 1995-10-01
著者
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ISHII Yoshiyuki
Department of Biomedical Science, Graduate School of Agricultural and Life Sciences, The University
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Ishii Yoshiyuki
Dep. Of Biomedical Sci. Graduate School Of Agricultural And Life Sciences The Univ. Of Tokyo
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Ishii Yoshiyuki
東京大学 農生命科研究
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Doi Kunio
Department of Veterinary Pathology, Faculty of Agriculture, The University of Tokyo
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ITAGAKI Shin-ichi
Department of Biomedical Science, Graduate School of Agricultural and Life Sciences, The University
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Ishii Yoshiyuki
Department Of Biomedical Science Graduate School Of Agricultural And Life Sciences The University Of
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Doi Kunio
日本生物科学研究所
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土井 邦雄
Department Of Veterinary Pathology Graduate School Of Agricultural And Life Sciences The University
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Doi Kunio
Department Of Applied Chemistry Nagoya Institute Of Technology
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Ishii Yoshiyuki
Department Of Applied Chemistry Faculty Of Engineering Kyushu Institute Of Technology
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KIMURA Tohru
Research Center, Nihon Nosan Kogyo Co., Ltd.
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板垣 慎一
Department Of Biomedical Science Graduate School Of Agricultural And Life Sciences The University Of
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Itagaki Shin-ichi
Department Of Biomedical Science The University Of Tokyo
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Itagaki Shin-ichi
Department Of Biomedical Science Faculty Of Agriculture The University Of Tokyo
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Itagaki Shin-ichi
Department Of Biomedical Science Faculty Of Agriculyure The University Of Tokyo
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Kimura Tohru
Research Center Nihon Nosan Kogyo Co. Ltd.
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