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各種化學物質의 處理에 依한 Mouse Embryo의 生殖巢에 미치는 影響
崔林淳 연세대학교 대학원 1966 延世論叢 Vol.4 No.1
This research was designed to know how the chemical substances Progest erone, Estrogen and Testosterone would affect the gonad of embryo in pregnan tmouse auld following results were obtained: (1) In the embyros of mouse which were injected by Progesterone, the development of testis of male embryo was inhibited by Progesterone, but on the contrary, the growth of ovary in female embryo, was accelerated by it. (2) Estrogen has not only repressed the differentiation of gonad but also played a role of trigering abortion. It is very harmful to pregnant mouse. (3) Testosterone like Estrogen also was a factor of trigering abortion and development of gonad was supressed. But in the testis of male embryo, the number of germ cell and intestitial cell has increased significantly, and inner portion of cortex was severely damaged in the ovary.
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비장적출(splenectomy)이 원발성 아메바성 뇌수막염의 발생에 미치는 영향
신호준,임경일,최림순,Sin, Ho-Jun,Im, Gyeong-Il,Choe, Rim-Sun 대한기생충학회 1985 The Korean Journal of Parasitology Vol.23 No.1
자유생활아에마중 병원성이 강한 것으로 알려진 Naegleria fowleri영양형 $5{\times}10^4$개를 생쥐의 비강내 로 감염시켜서 원발성 아메바성 뇌수막염을 받생시켰다. 그런 과정중 비장을 적출하여 그 영향에 대하여 생쥐의 체중과 수술후 회복기간별로 뇌수막염에 의한 사망율과 평균생존기간을 비교하였다. 또 생쥐의 혈청중 면역확산법으로 항체의 형성여부를 관찰하였으며, 각 실험군에서 채취한 혈청을 전기영동법을 실시하여 혈청단백질분획을 바교하였다. 본 실험결과 다음과 같은 성적을 얻었다. 1. 생후 3주째에 비장을 적출하고 1주일 후에 N. fowleri로 감염시킨 실험I에서 대조군, sham군, 비장적출군 사이의 사망율은 각각 100%, 85%, 95%이었으며, 평균생존기간은 7.3일, 7.5일, 7.8일이었다. 2. 생후 3주째에 비장을 적출하고 3주일 후에 N. fowleri를 감염시킨 실험 II에서 대조군, sham군, 비장적출군 사이의 사망율은 각각 95%, 95%, 95%이었으며, 평균생존기간은 12.1일, 11.5일, 11.5일이었다. 3. 생후 5주째에 비장을 적출하고 1주일 후에 N. fowleri를 감염시킨 실험 III에서 대조군, sham군, 비장적출군 사이의 사망율은 각각 95%, 90%, 95%이었으며, 평균생존기간은 8.1일, 8.3일, 8.6일 이었다. 4. 원발성 아에바성 뇌수막염이 발생된 생쥐의 혈청을 면역확산법을 실시한 결과, 항원-항체 복합체의 2중으로 된 침강대를 관찰하였다. 5. 혈청단백질분획의 비교는 다음과 같았다. 1) 비장을 적출한 후 N. fowleri를 감염 시키기 전에 채취한 혈청중, 대조군에서 분획 III, IV 이 sham군과 비장적출군에 비하여 다르게 나타났다. 2) 비장을 적출한 후 N. fowleri을 감염시켜서 뇌수막염을 발생시킨 생쥐의 혈청에서는 대조군과 sham군의 분획 II, III, V가 비장적출군과 달랐다. 3) 비장을 적출한 후 N. fowleri를 감염시키기 전에 채취한 혈청과 감염시킨 후 뇌수막염에 의하여 사망하기 직전에 채취한 혈청사이에서는 분획 I, III, N, V가 다르게 나타났다. 이상의 결과로 보아, 병원성이 강한 N. fowleri 영양형을 생쥐의 비강내로 떨어뜨려 원말성 아메바성 뇌수막염을 발생시킬 수 있었고, 비장을 적출하면 혈청 단백칠분획에는 차이를 나타낼지라도 생쥐의 사망율과 평균생존기간에는 아무런 영향을 주지 않았음을 알 수 있었다. To elucidate the effect of splenectomy on the development of experimental primary amoebic meningoencephalitis in mice, the death rate and survival time of mice infected intranasally with Naegleria fowleri trophozoites $5{\times}10^4$ cultivated in CGVS medium were compared according to the mouse age when splenectomy was done, and post-operation until experimental infection. Immunodigusion was undergone to detect the presence of serum antibod). due to N, fowleri infecttion in mice. Polyacrylamide gel electrophoresis was done to compare the protein fractions of mouse serum in each experimental groups. In experiment I, splenectomy was done 3 weeks and infection 4 weeks after birth, the death rate of control, sham operated and splenectomized group were 100%, 85% and 95%, and the mean survival time after infection 7.3 days, 7.5 days and 7.8 days, respectively. In experiment II, splenectomy was undergone 3 weeks and infection 6 weeks after birth, the death rate of of control, sham operated and splenectomized group were 95%, 95% and 95%, and the mean survival time after infection 12.1 days, 11.5 days and 11.5 days, respectively. In experiment III, splenectomy was done 5 weeks and infection 6 weeks after birth, the death rate of control, sham operated and splenectomized group were 95%, 90% and 95%, and the mean survival time after infection 8.1 days, 8.3 days and 8.5 days, respectively. By Ouchterlony immunodigusion, anti-JV. fowleri antibody in the serum of mouse with primary amoebic meningoencephalitis was detected against a N. fowleri antigen, which was prepared by ultrasonication of N, fowleri trophozoites, each reacting two lines of precipitation. The patterns of serum fractions by polyacrylamide gel electrophoresis were different between control and sham operated groups from splenectomized group in fraction II, III and V, the sera of which were collected after N. fowleri infection. This results may be summarized as that splenectomy has no effect on the development of primary amoebic meningoencephalitis in mice.
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Characteristics of $[^3H]$-Choline Uptake into Synaptosomes from Rat Hippocampus
이세은,홍성길,최림순,Lee, Se-Eun,Hong, Seong-Gil,Choe, Rim-Sun The Korean Society for Integrative Biology 1998 Korean journal of biological sciences Vol.2 No.2
Certain basic characteristics of choline uptake in nerve terminals were studied with synaptosomes from rat hippocampus. Synaptosomal $[^3H]$-choline uptake was clarified as specific and high affinity by low Km value(2.2 uM), Na+-dependency and high sensitivity to hemicholinium-3, a competitive inhibitor of choline uptake. Choline uptake into synaptosomes was linearlys related to Na+ concentration and membrane potential. Extracellular Ca2+ modulated the choline uptake, but probably not through increase of intracellular $Ca^{2+}$, because this modulation was not affected the by high $K^+$-depolarization. EGTA (2mM) added for $Ca^{2+}$-free condition had a peculiar effect of decreasing choline uptake. These results suggest that Ca2+ may play an important role in regulating the metabolism of acetylcholine in the nerve terminals directly through the increase of acetylcholine release.
ScienceON
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