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소건중탕가룡골(小建中湯加龍骨).모려(牡蠣)가 흰쥐의 실험적 위궤양에 미치는 영향
김태중,이윤희,최우석,박순달,변준석,Kim, Tae-Joong,Lee, Yun-Hee,Choi, Woo-Seok,Park, Soon-Dal,Byun, Joon-Seok 대한한방내과학회 2001 大韓韓方內科學會誌 Vol.22 No.1
Object : This study was carried out to examine the effects of Shogunjungtang-ga-younggol morea on gastric ulcers. Methods : In order to study the effects of Shogunjungtang-ga-younggol morea on gastric ulcers. Gastric ulcers were induced in HCI-aspirin in rats. The experiments were done by oral administration and measured by anatohistological features of ulcer lesions, and the changes of the number of parietal cells, chief cells, gastrin and somatostatin- immunoreactive cells. Results : In the Shogunjungtang-ga-younggol morea administrated groups, no gross lesions of ulcer and anatohistologically, just minor injury of gastric mucosa were detected. The number of parietal cells were significantly decreased, and the number of chief cells were significantly increased, in administrated groups. The number of gastrin-immunoreactive cells and somatostatin-immunoreactive cells was significantly increased in administrated groups. Conclusion : According to the results, it is considered that the administration of Shogunjungtang-ga-younggol morea seems to be applicable to the treatment of gastric ulcers.
소건중탕가 용골,모려의 항산화효과, 세포활성 및 유전자 발현에 미치는 영향
김태중 ( Tae Joong Kim ),임희용 ( Hee Yong Lim ),관민아 ( Min Ah Kwak ),변준석 ( Joon Seok Byun ),서정철 ( Jung Chul Seo ),한상원 ( Sang Won Han ) 대한본초학회 2003 大韓本草學會誌 Vol.18 No.2
N/A Objectives : The purpose of this study was to determine the effect of SG-YM on antioxidant effect, cell viability and the expression of genes in human stomach cancer cells. Methods : Antioxidant effect of SG-YM was compared with that of vitamin C on DPPH radical, respectively. Cell viability was determiend by MTT assay. Finally, gene expression was evaluated by cDNA microarray assay. Results : 1. Scavenging effect of SG-YM on DPPH treated cells were demonstrated by differential antioxidant effect in SG-YM-treated group at the dose of 10 and lmg/ml. 2. Cell viability was increased in SG-YM-treated group at the dose of lmg/ml. 3. Among 8000 unigenes, 208 genes were upregulated while 90 genes were downregulated by SG-YM treatment on human stomach cancer cell line. Conclusions : Collectively, these results can be used as basic data for development of new anticancer drugs or treatment.
한국제조기업의 구조화 파생상품 이용 결정요인: 기업지배구조를 중심으로
김태중 ( Tae Joong Kim ),민상기 ( Sang Kee Min ),이재호 ( Jae Ho Lee ) 한국국제경영학회 2013 國際經營硏究 Vol.24 No.3
본 연구는 기업의 지배구조 특히, 소유구조와 사외이사의 비율에 따라 구조화 파생상품의 이용여부가 영향을 받을 것이라는 가설을 실증분석 하였다. 기존의 파생상품에 비해 구조화 파생상품은 그 헤징효과가 불명확하며 오히려 기업들을 위험에 노출시킨다는 연구들이 있는데, 이를 바탕으로 하여 본 연구는 구조화파생상품 이용에 영향을 미치는 대주주와 외국인주주 및 사외이사의 역할을 확인하고자 하였다. 표본기간은 2005년부터 2009년까지이며 12월 결산법인인 상장제조기업 중 파생상품을 이용한 기업을 대상으로 로짓분석을 실시하였다. 구조화 파생상품 이용에 대한 로짓분석 결과 소유구조, 특히 대주주지분율은 파생상품 이용에 정(+)의 관계를 보이지만 대주주지분율의 제곱은 유의한 결과값을 보이고 있지 않아서, 기존 연구와는 달리 역-U자형 관계를 보여주지는 못했다. 이와 달리 외부감시자로써의 역할을 하는 5% 이상 보유 외국인 지분율 합계와 사외이사초과선임비율은 구조화파생상품 이용에 대해 음(-)의 계수값을 보였으며, 이로부터 복잡하지만 헤지 효과가 적은 구조화 파생상품 이용이 외국인과 사외이사에 의해서는 환영받지 못하는 것으로 보인다. 또한, 외국인 지분율 합계는 통계적으로 유의한 결과를 보이지 않는데 비해 개별적으로 5%이상 보유한 외국인지분율의 합계는 음(-)의 영향을 보이고 있으며, 이로부터 기존의 외국인 투자자에 대한 연구에서와 마찬가지로 일정 지분이상을 보유한 외국인의 감시역량이 상대적으로 우월함을 알 수 있다. 전년도 파생상품이용으로 인한 이익은 다음 연도 파생금융상품 이용에 긍정적인 영향을 줄 것으로 예측되었으나 실증결과는 오히려 반대의 결과를 보였다. study investigates the impact of corporate governance on Korean manufacturing firms` decision to manage foreign currency exposure via structured derivatives known to be used for risk management. From this research we made an attempt to analyze what factors of corporate governance might affect the use of structured derivatives. We found that the majority stockholder ownership variable does not have an inverted U-shape relation with the use of structured derivatives unlike previous research. In the following empirical analysis we also found that the total equity ownership by foreign investors with over 5% share-holding has a negative association with the structured derivatives usage. Moreover, structured derivative usage tends to decrease as the ratio of outside director increases. Unlike previous studies, this study shows that the corporate risk management using derivatives is not a simple reaction to the exposed risk, but that it reflects other corporate financial decision making variables such as a variety of corporate governance elements simultaneously.
기업 이질성, 지배구조와 사회적 성과가 수출성과에 미치는 영향 : 한국 기업 사례
김태중(Tae Joong Kim),양오석(Oh Suk Yang) 한국무역연구원 2015 무역연구 Vol.11 No.2
This paper pays attention to firm-specific characteristics such as corporate governance and corporate social performance which have been ignored in the previous research studies relative to export determinants. In addition, it examines the influence of the ex-ante financial health, innovation activities of the firm on its export behavior(measured by export intensity). All our sample firms are large Korean firms listed on Korean Stock Exchanges, and selected from the list of "2006(fifteenth) ~ 2011(twentieth) Top 200 best corporate citizens," assessed by a leading Korean CSR institution, the Korea Economic Justice Institute (KEJI). The research time frame covers 2001~2012 due to the availability of data collection. The main findings are that the ex-ante financial health partly improves the firm's export intensity, while innovation activities do not exert influence on export performance in the short term. Moreover, CSR activities also do not contribute to better export performance in the short term. In addition, only institutional investors have preference for the international expansion of export markets, while other actors in corporate governance do not. It is also noteworthy to point out that the 1-yr time lagged variable of export intensity is positively associated with current export intensity, while 2-yr time lagged export intensity is negatively associated with it.