Studies on reappearance of thymus after orchidectomy in ageing rats |
Myoung-heon Lee1, Woo-young Jo2, Sang-keun Kim1 |
1Department of Veterinary Medicine, College of Agriculture, Chungnam National University 2Chungbuk Animal Health Laboratory |
성숙(成熟) rat에 있어서 고환적출후(睾丸摘出後) 흉선(胸線)의 재출현(再出現)에 관한 연구(硏究) |
이명헌1, 조우영2, 김상근1 |
1충남대학교 농과대학 수의학과 2충북 가축위생시험소 |
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Abstract |
These studies were carried out to investigate the changes of blood pictures, hitological findings and testosterone concentrations after orchidectomy in ageing rat. The results obtained were summarized as follows: 1. The total W.B.C. counts were $9.27{pm}12{ imes}10^3/mm^3$ in the control group, $9.54{pm}34{ imes}10^3/mm^3$ in the sham-operation group and $12.08{pm}28{ imes}10^3/mm^3$ in the orchidectomy group when it was checked 50days after the operation. 2. The number of lymphocytes after orchidectomy began to increase gradually as time passes, thereafter markedly increased $10.12{pm}03{ imes}10^3/mm^3$ at 50days after orchidectomy. 3. The concentration of testosterone in serum began to decrease gradually after orchidectomy showed lowest level $1.68{pm}0.61pg/ml$ at 50days after orchidectomy while it was $5.82{pm}0.39pg/ml$ in control group. 4. The histological findings of thymus after orchidectomy were marked increase of thymic lymphocyte, disapearance of fat cells and appearance of mitotic figures. |
Key Words:
thymus, reapperance, orchidectomy, rat |
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