卷柏의 혈액암세포주에서 抗癌作用에 대한 연구

남항우,이성원,이병주,권칠용,문연자,안성훈,우원홍 한국전통의학연구소 2002 한국전통의학지 Vol.12 No.1

The Sellaginella Tarmariscina is widely used in the traditional oriental herbal medicine for its anti-inflammatory, antioxidant effects. The effects of aqueous extracts of Sellaginella Tarmariscina on the viability and induction of apoptotic cell death were investigated in HL-60 cells. The cell viability after treating with extract of Sellaginella Tarmariscina was quantified by MTT assay. The results showed that could inhibit the proliferation of HL-60 cells and caused a 40% inhibition of HL-60 cells at concentrations of 400 ㎍/ml. The cancericidic effect of Sellaginella Tarmariscina was mediated by apoptosis. Thus, HL-60 cells exposed to Sellaginella Tarmariscina displayed the DNA fragmentation ladder and nucleus chromatin condensation characteristic for apoptosis. In conclusion, our results suggest that the extract of Sellaginella Tarmariscina may induce the apoptotic death in HL-60 cells.

관상동맥 질환에서 CD14 유전자형에 따른 세균 및 Heat Shock Protein에 대한 반응의 차이

한주용,최수연,조현주,김화평,강현재,구본권,김남중,김효수,손대원,오병희,박영배,최윤식 대한감염학회 2007 감염과 화학요법 Vol.39 No.1

Background : CD14 is the receptor for lipopolysaccharides and heat shock protein (HSP), which has been suggested being associated with increased risk of coronary artery disease (CAD). We investigated whether the response to infectious agents or HSP is different according to CD14 polymorphism in Koreans. Materials and Methods : Antibody titers to Helicobacter pylori, Chlamydia pneumoniae, and human HSP60 (hHSP60) were measured in 48 patients with stable CAD and in 41 healthy controls by ELISA. CD14 genotype was determined by PCR and high-sensitivity C-reactive protein (hs-CRP) was measured. Results : Seropositivity to C. pneumoniae and H. pylori, and antibody titer to hHSP60 were not significantly associated with the presence of CAD. CD14 genotype distribution was 31 TT (35%), 43 CT (48%), and 15 CC (17%). To compare the response to the infectious organism and hHSP60, we divided study population into 3 groups; CAD patients with non-TT genotype (group I, n=30), CAD patients with TT genotype (group II, n=18), and normal controls (group III, n=41). Seropositivity to C. pneumoniae and H. pylori, and antibody titer to hHSP60 were not significantly different among 3 groups. Though hs-CRP level was significantly different among 3 groups, post-Hoc analysis showed that hs-CRP level was not significantly different between group I and group II (group I: 1.6[1.1-3.5] mg/L and group II: 0.35[0.1-2.0] mg/L). Conclusions : This study suggests that the inflammatory responses to infectious organisms and HSP do not differ according to the CD14 genotype in Koreans. 목적 : 만성적인 세균 감염이나 자가 면역 반응이 동맥경화와 연관되어 있다는 주장이 제기되어 왔다. CD14은 lipopolysaccharides (LPS)와 heat shock protein(HSP)의 수용체로 C(-260)→T 다형성이 관상동맥 질환의 위험과 관련되어 있다고 제안되어 왔다. 본 연구에서는 한국인에서 CD14 다형성에 따른 LPS와 HSP에 대한 반응성을 염증표지자를 측정하여 살펴보고자 하였다. 재료 및 방법 : 안정형 관상동맥 환자 48명과 정상 대조군 41명을 대상으로 Chlamydia pneumoniae, Helicobacter pylori 항체 및 인체 HSP60 (hHSP60) 항체 역가를 enzyme-linked immunosorbent assay (ELISA) 방법으로 측정하였다. CD14 유전자형은 중합효소연쇄반응을 이용하여 결정하였고 hs-CRP를 측정하였다. 결과 : C. pneumonias 및 H. pylori 항체 양성 여부 및 항체 역가, 그리고 hHSP60에 대한 항체 역가는 안정형 관상동맥 질환의 유무와 유의한 상관관계는 없었다. CD14 유전자형의 분포는 TT 30명(39%), CT 31명(40%), 그리고 CC 16명(21%)이었다. 관상동맥 질환 군에서 TT 유전자형은 38%, 대조군에서는 32%로 TT 유전자형과 관상동맥 질환의 유무와는 유의한 상관관계가 발견되지 않았다(P>0.05). CD14 유전자형에 따라 C. pneumonias와 H.pylori 감염 및 hHSP60에 따른 반응에 차이가 있는지 여 부를 알아보기 위해, 관상동맥 질환 군을 다시 TT 유전자형 군과 non-TT 유전자형 군으로 나누어, 전체적으로 세군에서 항체 양성률과 역가를 비교하였다(I군: CD14 TT 유전자형을 가진 안정형 관상동맥 환자, II군: CD14 TT 유전자형을 가진 안정형 관상동맥 환자, III군: 정상 대조군). 세 군에서 C. pneumonias와 H. pylori 항체 양성률 및 hHSP60 항체 역가에는 유의한 차이가 없었다. 세 군사이에 hs-CRP 값에 유의한 차이가 있었지만, post-Hoc분석에서 II군의 hs-CRP 값이 I군에 비해 유의하게 높지는 않았다(0.35 [0.1-2.0] mg/L in group II vs. 1.6 [1.1-3.5]mg/L in group I, P>0.05). 결론 : 본 연구는 한국인에서 CD14 유전자형에 따라 LPS나 HSP에 대한 반응이 유의하게 다르지 않음을 시사한다.

중금속물질이 생쥐 신장사구체에 미치는 영향에 대한 미세구조 연구

김주원,고정식,양남길,안의태,박경호 순천향의학연구소 1995 Journal of Soonchunhyang Medical Science Vol.1 No.2

본 실험은 중금속물질이 섭취되었을 때 신장사구체의 미세구조적 변화를 알아보기 위하여 시행하였다. 실험동물로는 체중 25gm내외의 성숙한 마우스(IRC)를 사용하였는데 실험군은 염화제이수은(HgCl₂)을 2mg/kg, 5mg/kg, 10mg/kg씩, 중크롬산칼륨(K₂Cr₂O7)을 5mg/kg, 10mg/kg, 20mg/kg씩 피하주사하여 사용하였다. 각 실험군은 주사 후 6시간, 3일, 2주일에 희생시킨 후 신장조직을 떼어내어 2.5% glutaraldehyde- 1.5% paraformaldehyde혼합액(0.1M Millonig's phosphate buffer, pH 7.3)에 다시 고정한 다음, 1% osmium tetroxide(0.1M Millonig's phosphate buffer, pH 7.3)에 다시 고정하였다. 고정된 조직은 ethyl acohol과 acetone으로 탈수하여 araldite 혼합액에 포매하였으며 포매된 조직은 LKB-V Ultramicrotome으로 얇은 절편을 만들어 uranyl acetate와 lead citrate액으로 염색한 후 JEM 100CX-Ⅱ전자 현미경으로 관찰하여 다음과 같은 결론을 얻었다. 1. 사구체기저막의 경우, 염화제이수은 투여군은 5mg/kg, 10mg/kg투여군에서, 중크롬산칼륨 투여군은 10mg/kg, 20mg/kg투여군에서 실험초기(6시간과 3일)에 사구체기저막의 전자밀도가 다소 불규칙하고 혹 모양의 물질이 기저막에 침착되었으나 2주일군에서 거의 정상군의 것에 비하여 별다른 변화를 볼 수 없었다. 2. 내피세포의 경우, 염화제이수은 투여군은 2mg/kg, 5mg/kg, 10mg/kg, 투여군에서, 중크롬산칼륨투여군은 10mg/kg, 20mg/kg투여군에서 실험초기( 6시간군과 3일 )에 내피세포 내에 공포와 myelin구조가 자주 관찰되었다. 3. 문어발세포의 경우, 염화제이수은 투여군은 2mg/kg, 5mg/kg, 10mg/kg 투여군에서, 중크롬산칼륨투여군은 10mg/kg, 20mg/kg 투여군에서 실험초기( 6시간군과 3일) 에 팽창된 과립형질내세망의 수조와 납작한 Golgi복합체 수조가 관찰되었다. 4. 혈관사이세포의 경우, 염화제수은 투여군은 2mg/kg, 5mg/kg, 10mg/kg 투여군에서, 중크롬산칼륨 투여군은 10mg/kg, 20mg/kg투여군에서 실험초기( 6시간군과 3일)에 기질내에 전자밀도가 높은 침착물이 관찰되었으며 혈관사이세포의 세포돌기가 내피세포 쪽으로 돌출되어 내피세포의 세포질판에 의해 둘러싸여 있는 모습이 자주 관찰되었다. 이상의 결과를 종합해보면 마우스가 일정량의 염화제이수은 또는 중크롬산칼륨을 한번 섭취하면 급성사구체신염의 형태학적 특징을 보이나 2주일정도가 지나면 사구체의 경우에는 거의 정상상태로 회복하며, 염화제이수은이 중크롬산칼륨에 비하여 사구체에 더 많은 손상을 준다고 생각된다. This experiment was performed to study the Ultrastructural changes of the renal glomerulus, induced by heavy metallic agents. Healthy adult mice weighing 25gm each were divided into normal an dexperimental grouops. Mercuric chloride(2mg/kg, 5mg/kg, 10mg/kg) or potassium bichromate(5mg/kg, 10mg/kg, 2-mg/kg) were injected subcutaneously to the animals. Animals were sacrificed at 6 hours, 3 days and 2 weeks following the injections. Pieces of tissues were taken from renal corticies, prefixed with 2.5% glutaraldehyde- 1.5% paraformaldehyde(0.1M Millonig's phosphate buffer, pH 7.3), and followed by post-fixation with 1% osmium tetroxide(0.1M Millonig's phosphate buffer, pH 7.3) Fixed blocks were dehydrated with alcohols and acetone, embedded in araldite mixture, cut with LKB V-ultratome. The ultrathin sections stained with uranyl acetate and lead citrate were observed with a JEM 100CX-II electron microscope. The results were as follow: 1. Glomerular basal laminae of the experimental groups showed some alterations, especially in the earlier stage-(6 hours and 3 days) of mercuric chloride-(5mg/kg. 10mg/kg) and potassium bichromate-(10mg/kg, 20mg/kg) treated groups. Irregularity of the electron density and accumulation of electron dense materials were observed. But morphological changes occurred in the basal laminae are generally recovered to normal appearance within 2 weeks. 2. In the glomerular endothelial cells of the mercuric chloride-(2mg/kg, 5mg/kg, 10mg/kg) and the potassium bichromate-(10mg/kg, 20mg/kg) treated groups. a large number of vacuoles and some myelin figures were observed frequently, especially in the earlier grous-(6 hours and 3 days). 3. In the podocytes of the mercuric chloirde-(2mg/kg, 5mg/kg, 10mg/kg) and potassium bichromate-(10mg/kg, 20mg/kg) treated groups. swollen cistern of rough endoplasmic reticulum and flattened cistern of the Golgi complexes were observed in the earlier groups-(6 hours and 3 days). 4. In the mesangial cell of the mercuric chloride-(5mg/kg, 10mg/kg) and potassium bichromate-(10mg/kg, 20mg/kg) treated groups. electron dense deposits were seen within the matrix and protruding cytoplasmic processes of the cells were surrounded by the cytoplasmic plates of the endothelial cells. From the above results. it was concluded that. the mercuric chloride or potassium bichromate induces acute glomerulonephritis on the mice, but ultrastructural changes occurred in the glomerulus after injection of the heavy metallic agents were recovered to normal appearance within 2 weeks. Mercuric chloride was more harmful on the renal glomerulus than potassium bichromte.

장시간 불가피한 공복(fasting)후 인체의 내분비 변화 : 삼풍백화점 붕괴 사고후 구조된 3인의 증례 THREE CASES IN COLLAPSE OF SAMPOONG DEPARTMENT STORE

박규남,황주일,박조현,오동렬,이원재,오승택,김세경,김인철 대한응급의학회 1995 대한응급의학회지 Vol.6 No.2

The interactions between nutrition and the endocrine system are more intimate and complex that previously thought. Nutrition modulates secretion and activity of many hormones, as part of the stress adaptation process. Fasting, in particular, produces a number of important changes in the endocrine system, with teleological purpose of helping the body tolerate the lack of food ingestion. These changes are therefore beneficial and protective, although at times they may not appear to be that way. The endocrine changes of fasting mediate the metabolic response. We must emphasize that these changes are completely reversible when appropriate nutrition is established. These changes are as followes: 1) decreased insulin and increased glucagon levels, 2) decreased thyroid effect, 3) decreased sympathetic activity, 4) hypothalamic hypogonadism, 5) decreased growth, 6) altered glucocorticoid secretion and metabolism, 7) impaired mineralocorticoid response, 8) decreased ADH secretion and effect. We experienced three cases of involuntary prolonged fasting after collapse of Sampoong department store. They were released from collapsed field after 11(case Ⅰ), 13(case Ⅱ), 17days(case Ⅲ) respectively. In each case, the endocrine changes of plasma levels were as followes: decrease of cortisol in case Ⅰ, increase of GH in case Ⅱ, decrease of free T3, T3, cortisol and increase of reverse T3, insulin in case Ⅲ. Each one did not show the same endocrine changes of plasma levels. But we think these changes of fasting are beneficial in metabolic response of human.

건조효과를 고려한 준설매립토의 압밀거동

유남재,박병수,이명욱,이주원 강원대학교 산업기술연구소 2000 産業技術硏究 Vol.20 No.A

This research is to investigate the self-weight consolidation settlement and desiccation shrinkage settlement of soft marine dredging clay by performing numerical and experimental works. Large column test were carried out investigate the consolidation settlement considering effect of the self-weight and desiccation shrinkage, and centrifuge model test was also carried out investigate self-weight consolidation settlement. Results of centrifuge model and large column experiments about changes of settlement with time were analyzed by using the numerical technique of explicit finite difference method considering effect of the self-weight and desiccation based on the finite strain consolidation theory. Centrifuge model test results were in relatively good agreements with analyzed results in terms of self-weight consolidation settlement with time. Large column test results showed quite different values from the numerically estimated one, carried by experimental conditions.

완전 고환성 여성화 증후군 1례

이원주,김택훈,권경익,김종인,조남규,박세출 啓明大學校 醫科大學 1993 계명의대학술지 Vol.12 No.2

저자들은 외형상 여성으로써 원발성 무월경과 양측 외음부 종양 촉지를 주소로 입원한 complete testicular feminization syncrome 1례를 경험하였기에 이를 문헌고찰과 함께 보고하는 바이다 The 46, XY individual with complete testicular feminization syndrome is a phenotypic female who is usually somewhat tall, has excellent breast development and presents to the gynecologist because of primary amenorrhea and an inguinal mass. In complete testicular feminization syndrome, axillary and pubic hair are sparse or absent and some degree of virilization such as clitorial hypertrophy, partial labioscrotal fusion and hirsutism doesn't occur at puberty. We report a case of complete testicular feminization syndrome with the brief review of literatures.

국내외 하수처리장 자동화 현황 조사

김창원,고주형,최광수,허남효,김병군 釜山大學校生産技術硏究所 1999 生産技術硏究所論文集 Vol.56 No.-

하수처리장 운전 제어 및 자동화는 현재 세계적인 추세이다. 자동 제어를 도입함으로써 운전의 효율성 및 안정성 향상, 일관된 운전, 운전비용 절감 등 많은 이득을 기대할 수 있다. 유럽 등 선진국에서는 이미 7,80년대부터 다방면에서 많은 역구가 수행되었고, 80년대 이후 건설된 대부분의 하수처리장에서 용존산소 농도 제어를 비롯한 기본적인 제어를 실제로 적용하고 있다. 그러나 현재까지 국내에는 하수처리장에 자동 제어가 적용된 경우가 없으며, 현장 적용은 몇몇 폐수처리장에 국한된다. 그러나 자동 제어를 통해 얻을 수 있는 이득이 매우 크다는 것이 명백하고, 현재 각 대학 연구에서 활발하게 연구를 수행하고 있으므로, 가까운 장래에 많은 하·폐수처리장에 자동 제어가 광범위하게 도입될 것으로 기대된다. Operational control and automation of sewage works is a worldwide tendency. By introducing automatic control, many benefits like improvement of efficiency and stability, consistent operation an operational cost saving, can be obtained. Lots of process studies have been performed from 7,80s in developed countries, and basic control (e. g. DO control) is having been appplied to almost every plants constructed after 80s. In Korea, no large sewage work is automatically controlled till now, while some limited application for wastewater treatment plants are exist. But it is very clear that automatic control holds great porfits and lots of vigorous researches are being conducted in many universities and laboratiories, so widespread introduction of automatic control to sewage/wastewater treatment plant in near future is expected.

톨루엔 폭로근로자의 요중 마뇨산과 자각증상에 관한 연구

김주자,함정오,안규동,이병국,남택승,백남원 大韓産業醫學會 1989 대한직업환경의학회지 Vol.1 No.2

To study the relationship between the urinary hippuric acid and subjective symptoms in toluene exposed workers, urinary hippuric acid was measured and subjective symptoms questionnarire was surveyed in 93 toluene exposed male workers and 96 non-exposed office male workers. The results are as follows: 1. Mean concentration of urinary hippuric acid, which is significantly higher in exposed group than in non-exposed group, was 1.3 g/1, 1.2(GM, GSD respectively) in exposed group and 0.6 g/1, 1.2(GM, GSD respectively) in non-exposed group. 2. Mean concentration of toluene in the air in the workplace, which is significantly higher in the department of coater than in the department of mexing, was 23.4 ppm, 6.2(GM, GSD respectively) in the department of mixing and 59.8 ppm, 3.4(GM, GSD respectively) in the department of coater. 3. Complained rates of subjective symptoms were significantly higher in exposed group than in non-exposed group in all items. 4. In exposed group, complained rate of CNS related symptoms was higher than that of irritation ralated symptoms in the first part but there was no significant difference and complained rate of irritation related symptoms in the second part was significantly higher than that of CNS related symptoms. 5. In exposed group, complained rates of subjective symptoms were not compatible with dose-response relationship by the concentration of urinary hippuric acid, duration of work, department of work, and age group retrospectively.

기능상실한 이식신의 절제

조원현,남창우,김천일,주일,박성배,김현철 大韓移植學會 1994 Korean Journal of Transplantation Vol.8 No.1

ERP 수용요인이 회계정보의 유용성과 시스템 만족도에 미치는 영향

이남주,손성진,김성환,강대원 서강대학교 경영연구소 2004 서강경영논총 Vol.15 No.2