Adrenocortical Zonation in the Laboratory Japanese Field Vole (<I>Microtus montebelli</I>)

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  • TANAKA Shin
    <I>Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo</I>
  • FUKUTA Katsuhiro
    <I>National Institute of Animal Health</I>
  • GOTO Nobuo
    <I>Faculty of Agriculture, Kobe University</I>
  • MATSUZAWA Akio
    <I>Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo</I>

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Other Title
  • ハタネズミ (<I>Microtus montebelli</I>) の副腎皮質層構成
  • ハタネズミ(Microtus montebelli)の副腎皮質層構成
  • ハタネズミ Microtus montebelli ノ フクジン ヒシツソウ

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Abstract

Adrenocortical zonation in the laboratory Japanese field vole (Microtus montebelli) was investigated hitologically with special attention to the sex and species specific differences. The whole cortex and zona reticularis showed clear sex differences. They were thicker in females than in males. In this respect the vole was similar to the mouse and rat, but different from the Syrian hamster and mastomys. Male cortices were characterized by thick z, fasciculata and meagre z. reticularis, while both zones were thick in females. The z. fasciculata in both sexes and z. reticularis in females seemed to be divided into two sublayers by the cellular arrangement. No distinctive additional zones were identified. The histological observations indicated that the Japanese field vole might have interesting endocrinological characteristics and serve for studying the mechanism of the zone formation in the mammalian adrenal cortex.

Journal

  • Experimental Animals

    Experimental Animals 42 (2), 251-255, 1993

    Japanese Association for Laboratory Animal Science

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