겨우살이 Lectin의 항당뇨 효과

장철수(Choul-Soo Chang),노광수(Kwang-Soo Roh) 대한의생명과학회 2000 Biomedical Science Letters Vol.6 No.2

겨우살이 (Viscum album)는 민간요법에서 여러 질환에 치료제로 쓰이고 있다. 이는 겨우살이가 가지고 있는 lectin의 약리작용에 의한 것으로 그 가능성을 알아보고자 겨우살이 lectin의 항당뇨 효과를 연구하였다. 이를 위해 streptozotocin으로 당뇨를 유발시킨 흰쥐에 국내 참나무류에 기생하는 겨우살이의 추출물과 정제된 lectin을 경구와 복강내에 투여하여 조사하였다. 추출물을 29일 동안 경구 투여시 혈당치가 36%까지 현저히 감소하였으나, 정제된 lectin을 경구 투여시 항당뇨 효과가 현저히 나타나지 않았다. 또한 정제된 lectin 0.4 ㎎/㎏을 복강내에 주사시 당뇨군에서 2시간과 4시간에서 saline에 비해 혈당치가 각각 32%와 28% 감소하였으므로 lectin의 항당뇨 효과는 뚜렷하였다. We investigated anti-diabetic effect of the crude extracts and the lectin purified from the leaves of Viscum album collected in Mt. Duk Yu. The induction of diabetes mellitus was confirmed by the presence of statistically significant greater serum glucose levels in streptozotocin-treated rats compared with the untreated non-diabetic group. There are no significant differences in the serum glucose levels compared extracts and purified lectin to tap water in the non-diabetic group after administration through the oral cavity in 29 day. But for streptozotocin-induced diabetic rats the serum glucose level in extracts after administration through the oral cavity was strikely decreased to 36% than tap water in 29 day. Significantly lower glucose level was obtained at 2 hr and 4 hr after administration of purified lectin (0.4 ㎎/㎏) through the peritoneal cavity. These results provide an evidence that Viscum album lectin has an anti-diabetic effect pharmacologically.

도시가구의 밤 구매 및 소비행태 분석(2010-2015)

장철수 ( Cheol-su Chang ),은종호 ( Jong-ho Eun ) 한국산림경제학회 2016 산림경제연구 Vol.23 No.1

본 연구의 목적은 전국 도시가구 소비자들의 밤에 대한 구매 및 소비행태를 분석하고 그 결과를 바탕으로 향후 밤 산업이 지속적으로 발전하기 위한 정책적인 시사점을 제시하는 데 있다. 밤의 구매 및 소비행태의 분석결과, 밤 구매 시기는 명절 및 햇밤 출하시기에 높았으며 생밤을 구매하는 비중이 높았으나 군밤, 가공밤에 대한 구매도 매년 증가하는 것으로 조사되었다. 밤 구매횟수는 분기에 한번 구매한다는 의견이 높았으며 망, 비닐 등 소포장 형태를 선호하는 것으로 나타났다. 밤 구매 시 우선고려 사항은 신선도, 외형, 가격 등으로 나타났다. 소비행태를 살펴보면, 가구당 소비량은 매년 비슷하다는 의견이 70%로 나타났으며 소비증가 원인은 ‘가족의 건강을 위해서’, 소비감소의 원인은 ‘소득감소’와 ‘먹기 불편해서’라는 의견이 많았다. 현재 우리나라 밤 소비는 정체상태에 머물러있는데 앞으로 밤 산업이 발전하기 위해서는 소비자 요구에 부합하는 고품질 밤 생산과 다양한 소비층을 겨냥한 가공식품 개발 등이 필요한 것으로 나타났다. This study aims to analyze urban households' chestnut purchase and consumption behavior and present policy implications to continually develop the chestnut industry based on the survey. The analysis results of chestnut purchase and consumption behavior show that chestnuts are more purchased in holidays and the shipping season of newly harvested chestnuts, and although the proportion of raw chestnut purchases is high, roasted and processed chestnut purchases have increased every year. Consumers generally purchased chestnuts once per quarter, and preferred meshor plastic-wrapped small size packaging. They first considered freshness, appearance, prices and so on when purchasing chestnuts. The survey results on consumption behavior are as follows: household chestnut consumption is similar every year according to 70% of the respondents, and many consumers point out their family's health as a reason for chestnut consumption increases and income reduction and inconvenience in eating as reasons for consumption decreases. Currently, Korea's chestnut consumption seems to be stagnant, and for the development of the chestnut industry, it is needed to produce high-quality products that meet consumer demand and develop processed foods targeting various consumers.

사회적 비용분담에 의한 산림관리와 정책적 시사점: 일본 미야자키 현의 사례를 중심으로

장철수 ( Cheol-su Chang ) 한국산림경제학회 2016 산림경제연구 Vol.23 No.1

이 논문의 목적은 일본의 미야자키현을 사례로 하여 산림관리에 대한 사회적 비용분담을 소개하고 정책적 시사점을 도출하여 제시하는 데 있다. 사회적 비용분담은 전국 단위로 모금, 기부금 등의 형태로 진행되거나 또는 산림환경세와 같은 지자체 독자과세 방식에 의해 이루어진다. 미야자키현의 경우 산림을 지역주민의 생활에 없어서는 안 될 귀중한 환경재로 인식하여 개인의 경우 주민세로서 연간 500엔을, 기업은 현민세로 5% 상당액을 납부하고 있다. 지역주민, 볼란티어, NPO 등 참여주체들은 자발적 주체적으로 참여하여 지역의 산림을 지역적 특색에 맞게 스스로 정비하고 보전한다. 산림관리활동은 모두 공모사업으로 실행되며, 민간기구인 미야자키산림관리위원회를 통해서 이루어진다. This paper deals with the introduction and political implications of forest management by a social assistance of Miyazaki prefecture in Japan. Social assistance is made by a fund-raising and donation of person, company, association, etc. in national level, and by the imposition of tax like forest environmental tax by local government. In Miyazaki prefecture, forest management activities by local people’s participation are carried out by forest environmental tax. Individuals pay 500 yen a year as a local inhabitants tax, and companies do 5% as a prefecture inhabitants tax. The local residents, forest volunteers, NPOs participate in managing and reserving local forests voluntarily and actively. And all forest management activities are conducted through the public subscription with the Miyazaki Forest Management Commission.

한,중 임산물관세구조 비교분석

장철수 ( Cheol Su Chang ),이상민 ( Sang Min Lee ) 한국산림과학회 2008 한국산림과학회지 Vol.97 No.1

한,중,일 임산물 교역동향과 관세구조 분석

장철수 ( Cheol Su Chang ),송성환 ( Seong Hwan Song ) 한국축산경영학회 2012 농업경영정책연구 Vol.39 No.2

This study carried out a comparative analysis of the trade trends and tariff structure of Korea, China and Japan with which Korea han ongoing discussion for FTA. The result will give basic informations to minimize negative impacts expected by the result of the tariff reductions as well as to establish developing strategy in the filed of forestry. Korea-China forest products trade is characterized by a high import dependence. In addition, the Trade balance is surplus, but that`s size is decreasing. A comparison of tariff strucutre of Korea, China and Japan was that China has the most segmentalized structure with 493 target commodities for tariffs, and The Korea has the highest tariff rate within three countries. According to the analysis, if the tariff elimination rules with no exception are applied, Korea with relatively highest tariff rates and less tariff-free products is expedted to more damage. Accordingly Korea should work harder to get such items recognized as sensitive products on the negotiation table. Although the trade openness, Korea will still need to set up strategies for an extension of tariff reduction period.

겨우살이 Lectin의 간기능 영향

장철수 ( Choul Soo Chang ),신숙희 ( Sook Hee Shin ) 대한임상검사과학회 2002 대한임상검사과학회지(KJCLS) Vol.34 No.2

In the present study, the author investigated changes in liver function caused by Viscum album lectin. πle lectin was purified by 0.15 M NaCl extraction, amnonium sulfate precipitation, sepharose 4B affmity chromatography and gel filtration using sephadex 0-150 with plant material from Viscum album collected in Mt. Duk Yui. After 72 h of CC14 iniection (in olive oil, 1:1, 2 mg/kg) there was a significant increase in serum AST and AL T levels relative to the control group. However, treatment. of either Viscum album extracts and purified lectin offered no protection against CC14-induced hepatotoxicity. Histological observation basically supported the resu1t obtained from serum enzyme assay. The livers of rats challenged with CC14 produced a marked increase in cytoplasmic vacuoles and inflammatory cells in number, while the number of necrotic cells and swollen hepatocytes did not change significnatly. Rats administered olive oil alone did not have a change in the normal hepatic architecture. Histological observation of a liver section in rats treated 72 h with either Viscum album extract or purified lectin CC14-induced liver damage showed numbers of cytoplasmic vaculoe and necrotic cells. The numbers of inflammatory cells were, however, increased markedly. πle nurmal hepatic architectural pattem was lost in a Hematoxylin-eosin stain. These results suggest the conc1usion that Viscum album lectin has a physiological effect of hepatotoxicity activator.

Glycosylated Hemoglobin 측정(測定)의 실험적(實驗的) 연구(硏究)

장철수 ( Choul Soo Chang ),김상변 ( Sang Sub Kim ),이정규 ( Chang Kyou Lee ) 대한임상검사과학회 1986 대한임상검사과학회지(KJCLS) Vol.18 No.1

平生儀禮와 政策

張哲秀(Chang Chul Soo) 비교민속학회 1993 비교민속학 Vol.10 No.-

가구의 성격규명에 대한 일시론

장철수 (Chol Soo Chang) 한국문화인류학회 1985 韓國文化人類學 Vol.17 No.1

N/A

공공임업투자에 대한 시회경제적 분석 (Ⅰ) - 사회적 할인률의 추정에 대하여 -

장철수 ( Cheol Su Chang ) 한국산림과학회 1992 한국산림과학회지 Vol.81 No.3

When the social cost-benefit analysis is applied for analyzing the public forestry investment, the choice of discount rate to be used in analysis is critical. In this paper, the social discount rate discussed in the public economics was introduced and the social time preference rate as a measure of that was estimated for Korea. The component parameters of the model used are : the elasticity of social marginal utility of consumption and the growth rate of real consumption. The results for the social time preference rate and the elasticity of social marginal utility of consumption are 6.2% and -1.38, respectively, which are plausible and thus can be used as a useful basis in establishing rational resource allocation policies.