Journal of Embryo Transfer 2004; 19(2): 75-80
Published online August 31, 2004
Copyright © The Korean Society of Animal Reproduction and Biotechnology.
김충희, 고필옥, 원청길, 김종수, 강정부, 강명곤, 김태숙, 갈경영, 정장용, 박희성
진주산업대학교 동물생명과학과 · 동물생명산업지역협력연구센터
This study was performed to examine the cytotoxic effects of nicotine on the seminiferous tubules and Leydig cells in mice testis. A different amount of nicotine (2～15 mg/kg, for two weeks, one dose of 100 mg/kg) were administered to four-month male mice, and then the optical microscopic findings of its effect on testis of the mice are as follows: 1. The group that 2 mg/kg of nicotine was administered showed normal findings that nucleus and cytoplasm of Leydig cells are distinct, while the other group that 5 mg/kg of nicotine was given to showed nucleus and cytoplasm are swollen and thickened a little, and slightly dyed. 2. The group that 10 mg/kg of nicotine was given had irregular arrangement of spermatogenesis inside seminiferous tubules so it was impossible to distinguish phages of seminiferous tubules. It was also impossible to observe cells due to fusion of their nucleuses, and distinct cytoplasm. 3. The group that 15 mg/kg of nicotine was administered showed destruction of nucleuses and cytoplasm of spermatocytes and sperms and a fill of fibered connective tissues so that it is impossible to observe rumens of seminiferous tubules.
Keywords: Lwydig cells, testis, spermatocytes, nicotine, seminiferous tubule, mice