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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2011 Vol.30 No.2

Observation on the Dorsal Skin in YYHL by Electron Microscopy
Author of the article:ZHU Kui-cheng, ZHANG Jin-tao*, WANG Chun-yao, DU Chun-yan, XING Jin-shan
Author's Workplace:(Laboratory Animal Center of Zhengzhou University, Zhengzhou 450052, China)
Key Words:hairless mice; skin; electron microscopy
Abstract:The dorsal skin from Yuyi hairless mice (YYHL) aged 12 to 28 days after birth was studied by electron microscopy. At 12 days, dermal cysts were formed by epithelial cells which clustered in islets. The apoptotic epithelial cells in the hair follicles of skin appeared crescent and the apoptotic bodies were seen in YYHL aged 14 days. Sebocyte-like cells were observed in the cysts of an 18-day-old YYHL. The central part of the cyst was characterized by an accumulation of fibrillar material from degenerative cells on the 21st day. Progressively, the number of cells in these islets increased and a central cavity was formed 28 days after birth. The present results revealed increased apoptosis in epithelial cells of the initial follicular unit, which affected the normal growth of the hair follicle in YYHL.
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