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Immunohistochemical Localization of Steroidogenic Enzymes in the Testis of the Sika Deer (Cervus nippon) During Developmental and Seasonal Changes OAK
HAYAKAWA, Daisuke; SASAKI, Motoki; SUZUKI, Masatsugu; TSUBOTA, Toshio; IGOTA, Hiromasa; KAJI, Koichi; KITAMURA, Nobuo; 佐々木, 基樹; 北村, 延夫.
Testicular steroidogenesis and spermatogenesis during developmental and seasonal changes were investigated in male sika deer (Cervus nippon), a short-day seasonal breeder, to clarify the physiological mechanisms for reproductive function. The immunohistochemical localization of steroidogenic enzymes (P450scc, P450c17, 3βHSD and P450arom), spermatogenesis and cell proliferation were analyzed in the testes of fetal (164 to 218 days of fetal age), fawn (0 years old), yearling (1 year old) and adult (more than 2 years old) male sika deer. Three kinds of steroidogenic enzymes, P450scc, P450c17 and 3βHSD, essential for the synthesis of testosterone were located only in the Leydig cells of the testes from the fetal period, and these localizations did not change...
Palavras-chave: Developmental change; Seasonal change; Sika deer; Steroidogenic enzyme; Testis.
Ano: 2010 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2816
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