卵巣除去下におけるマウス乳腺の血管分布について

概要

論文の詳細を見る
11?e relationship between the duct-alveolus system and the blood vessels of the mam-mary gland was investigated in ovariectomized. ICR-J CL mice.In Experiment I, 64 mice were ovariectomized at 90 days of age and sacrificed 7 to42 days later. Ten normal females were sacrificed at 90 days of age to serve as controls.In Experiment II, 120 immature and mature mice from 20 to 90 days old were ovariec-tomized at 10 days intervals ancl sacrificed at 100 days of age together with [0 intact.female mice serving as controls.All the animals were in.jected with India ink or latex via A. carotis comtnunis sinistra.The 3rd tboracic mammary gland on the right side was stained with carmine to demon-.strate the mammary parenchyma as a whole mount preparation, and the left 3rd thoracicgland was also prepared for histological observation.l. In Experiment I, the mammary gland on the 7th and 14th day after ovariectomyshowed a tendency to regress in the end bud and a part of the lateral bud, but no con-spicuous degeneration of the ductal system. On the other harid, the condition of tlte?duct-associated capillary plexus was similar to that seen in the intact animals, but theblood vessels of the bud were partially involute. An obvious regression of the bud andslender ducts was observed in the mammary gland on the 21st and 28th day after ovariec-tomy. On these days, tl?e ductal capillary plexus was ltardly seen. On the 35th and42nd day after ovariectomy, the mammary gland was composed only of ducts because ofthe obvious involution of the bud. The interlobular ducts were slender. The distal end?duct changed into a saccule-like structure. Although the mammary parenchyma was lowin density of vascularity, the loop-shaped capillary networks in the adipose tissue werecomparable to those sc)en in the intact animals. Furthermore, the mammary parenchyma?of some of the females on the 7th day after ovariectomy slaowed as much regression asthat of tltefemales on the 35th day after ovariectomy.2. In Experiment II, the unammary gland of 100-day-extend
社団法人日本獣医学会の論文
1973-12-25

卵巣除去下におけるマウス乳腺の血管分布について

スポンサーリンク

概要

著者

関連論文

スポンサーリンク