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카드뮴의 Salmonella typhimurium 변이균주 및 랫드 간장 상피세포에서의 유전독성
정상희,조명행,조준형,Jeong, Sang-hee,Cho, Myung-haing,Cho, Joon-hyoung 대한수의학회 1998 大韓獸醫學會誌 Vol.38 No.3
Cadmium is one of the well-known environmental toxicants and induces cancer in rodents and human, but its carcinogenic mechanism has not been well demonstrated until now. Genotoxic effects of cadmium in Salmonella typhimurium TA98, TA100 and TA1535/pSK1002 or in WB-F344 rat liver epithelial cells were investigated to elucidate the tumor initiating effects of cadmium. TA98, TA100 and TA1535/pSK1002 tester strains were used to detect frameshift mutation, base-pair mutation and SOS repair response, respectively, in Salmonella mutation test. Reverse mutations from histidine to $histidin^+$ of Salmonella typhimurium TA98 and TA100 by $CdCl_2$ were not significantly different from control up to the maximum doses ($100{\mu}M$ and $200{\mu}M$ in TA98 and TA100, respectively) at which non-cytotoxicity was observed. DNA SOS repair responses(${\beta}$-galactosidase activity) generally did not show significant increases compared to control in both of the conditions with or without metabolic activation in Salmonella typhimurium TA1535/pSK1002 by $CdCl_2$. But the activities of ${\beta}$-galactosidase by $400{\mu}M$ of $CdCl_2$ in metabolic activation condition and by 130 and $400{\mu}M$ of $CdCl_2$ in non-metabolic activation condition were more decreased than those of control. DNA single strand breaks for 4hrs were observed only in WB-F344 rat liver epithelial cells treated with $200{\mu}M$ of $CdCl_2$. As a conclusion, $CdCl_2$ did not induce gene mutation in microbials but induce DNA single strand breaks in rat liver epithelial cells.
정상희(Sang Hee Jeong) 사단법인 한국언어학회 2021 언어학 Vol.- No.91
This study aims to describe the phonological, morphological and syntactic phenomena of the repetitive construction of malta and explain them in the basis of plural-event structure. The three main arguments are made: Firstly, collective reading which is defined by two semantic features, [±individuated] and [±bounded] is intermediate between distributive and group reading. [±Individuated] is involved in the individuality of a partial events, and [±bounded] is involved in the formation of the collective event consists of the partial events. Second, it is hard to consider that linguistic phenomena of the repetitive construction of malta are mainly related to main verb malta. Rather, it is better understood in its collective meaning. Third, many examples which can be explained as a collective event are easily found besides the repetitive construction of malta.
Sang-Hee Jeong(정상희),Ki-Sik Hwang(황기식),Hyun-Jung Kim(김현정) 고려대학교 일민국제관계연구원 2009 국제관계연구 Vol.14 No.2
본 논문은 2008년 체결된 일본과 ASEAN의 양자 간 무역협상을 중심으로, 동아시아에서의 지역주의가 일본의 대외 통상 정책 및 EPA 정책 기조에 미친 영향관계를 분석한 연구이다. 세계적인 지역주의 추세와 역내 중국의 비약적인 부상이 주요 요인으로 일본의 대외 통상 정책에 변화를 가져왔다고 분석되어진다. 이에 일본은 동아시아 특히 ASEAN 회원국들을 주요 EPA 상대국으로 협상체결하였고, 동시에 ASEAN과의 양자 간 무역협상 또한 체결하였다. 필자는 일본이 AJCEP와 JAEPA를 동시에 추진 타결한 것에 주목하고, 그 원인이 동아시아 지역주의에 있음을 분석하였다. 일본이 AJCEP와 JAEPA를 이중으로 추진하는 데에 경제적 효용성이 낮거나 무역현상 왜곡의 우려가 있음에도 불구하고 둘 다를 추진하여 타결한 데에는 경제적 효과 이외에 동아시아 지역주의의 영향이 컸음을 지적하였다. 동 지역 내에서 일본이 구상하여 제안한 CEPEA를 형성할 목적과 지역협력체 형성 시 자국이 주도적인 역할을 수행하려는 목적임을 분석하였다. 나아가 본 연구는 동아시아 지역 내의 지역 협력에 역할을 수행할 한국이 지역 내에서 역내국가와의 통상 정책을 세우는 데 있어서도 시사점을 얻을 수 있다. This paper mainly analyzes the influence of strong regionalism in East Asia on foreign trade policy of Japan, with a specific focus on the changes in EPA policy with ASEAN. Authors argue that the global trend toward regionalism and the striking rise of China within the region are the major causes of the changes in Japan’s foreign trade policy. In spite of no tangible economic benefits and worries about possible trade distortion, Japan has pursued the AJCEP and JAEPA together. Authors believe that this is largely because of the influence of East Asian regionalism rather than just because of deep consideration on economic factors. This research is expected to give some lessons for Korean policy-makers in terms of establishing FTA strategies towards neighbouring Asian countries.
정상희(Sang Hee Jeong),박철범(Cheol Beom Park),한범석(Bum Seok Han),강창수(Chang Soo Kang),정미혜(Mihye Jeong),성하정(Ha Jung Sung) 한국농약과학회 2011 농약과학회지 Vol.15 No.2
The use of chemical products to enhance and improve life is a widespread worldwide practice. In spite of the benefits of these products, there is the potential of chemicals for adverse effects to people or the environment. The globally harmonized system (GHS) of classifying and labeling chemicals that was recommended by the United Nations in 2003, has been introduced globally since 2008. Compare to the classification criteria of agricultural formulations today, classification criteria of GHS is different partly, One pictogram is removed and 3 pictograms are introduced newly. The classification criteria of GHS will be changed preferentially and implemented gradationally to hazard products.
세치제의 Sodium Lauryl Sulfate 함유정도에 따른 구취변화
정화영(Jeong, Hwa-Young),정상희(Jeong, Sang-Hee),정미애(Jeong, Mi-Ae) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.8
본 논문은 SLS의 함유정도를 다르게 한 A(0%), B(1.1%), C(2.2%)의 세가지 실험세치제를 제작하여 구취변 화를 실험하였다. 대상은 전신질환이 없는 20대 성인 150명이었으며 50명씩 세 그룹( A, B, C )으로 나누어 진행되었 다. SLS함량에 따른 세치제의 4주간사용 후 3집단의 구취변화를 황화물가스와 암모니아 양의 변화로 측정한 결과 3 집단 모두 집단내의 변화는 있는 것으로 나타났지만 SLS함량에 따른 상관관계를 본 결과에서는 구강황(r=0.412)과 호 기황(r=0.285)에서만 상관관계가 있는 것으로 나타났다. 이는 잇솔질의 개선으로 인한 변화라고 볼 수 있으며 SLS의 함량이 높을수록 타액분비율을 저하시켜, 구강건조를 유발하므로 구강 황화합물과 호기 황화합물의 수치가 높게 나온 것으로 생각된다. This study used 3 kinds of experimental toothpaste with different contents(0%, 1.1%,2.2% of SLS. A total of 150 young adults in their 20's without any systemic disease were recruited for the study. These 150 subjects were subdivided into three groups(each having 50 subjects) according to the results of preliminary oral examination.After 4 weeks application of the three groups of toothpaste, Group C showed the highest halitosis index, followed by Groups A and B which had similar halitosis indices. Both oral sulfur compound and aerobic sulfur compound were measured at high content possibly because higher SLS content which is associated with the lower salivary flow rate is causing the xerostomia. SLS content was correlated with oral sulfur compound (r=0.412) and aerobic sulfur compound (r=0.285).
랫드에서 수은이 혈장 DNA와 혈액화학치에 미치는 영향
조준형,정상희,강환구,윤효인,Cho, Joon-Hyoung,Jeong, Sang-Hee,Kang, Hwan-Goo,Yun, Hyo-In 대한수의학회 2003 大韓獸醫學會誌 Vol.43 No.4
Changes of plasma DNA contents and serum biochemical values were measured in rats administered with $HgCl_2$ to investigate the in vivo cytotoxic effects of mercury and examine the usefulness of these changes as indicators of mercury exposure and diagnosis of mercury poisoning. Rats were given once intraperitonealy $HgCl_2$(0.13. 0.32. 0.8 and 2 mg/kg b.w) and the changes of plasma DNA contents and serum biochemical values were measured at the time of 2, 4, 8, 24, 48 and 72 hours after the administration of $HgCl_2$. Plasma DNA contents began to increase from 2 hours after the administration of $HgCl_2$ in all the treatment groups significantly compared to control with dose-dependent pattern. The levels of plasma DNA reached to peak at 48 hours as 2.77, 7.60, 15.46 and 16.51 times higher than control in each treatment group of 0.13, 0.32, 0.8 and 2 mg/kgb.w, respectively and remained to be higher until 72 hours after the administration. The values of creatine kinase, aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase, blood urea nitrogen and glucose of serum were increased, however the values of alkaline phosphatase, total protein and triglyceride were decreased. These changes of increase and decrease showed dose-dependent pattern but the starting time, maintenance and magnitude of change were various and characteristic according to serum biochemical indices. Among the changes of serum biochemical values, those of aspartate aminotransferase, lactate dehydrogenase and blood urea nitrogen were apparently and significantly increased compared to control from 2 to 72 hours by the administration of 2 mg/kg $HgCl_2$. This study demonstrates that plasma DNA and serum biochemical values such as aspartate aminotransferase, lactate dehydrogenase, blood urea nitrogen and etc. are valuable as biomarkers for mercury exposure assessment and diagnosis of mercury poisoning.