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      • 폐암과 동반되어 나타난 기관기관지병증 골연골형성증 1예

        이영진,전현수,박시형,김모세,김현주,이승헌,이영민,이현욱,이현경 仁濟大學校 白病院 2010 仁濟醫學 Vol.31 No.-

        Tracheobronchopathia osteochondroplastica (TPO) is a rare benign disease of unknown etiology characterized by multiple cartilaginous or bony submucosal nodules, which project into the tracheobronchial lumen. Although some disorders were reported combined with TPO, these seemed to be considered casual. We report a case of TPO that combined with adenocarcinoma of lung. She was 50-year-old non smoking woman presented with chronic cough with right chest pain. Lung mass on right lower lobe was found on chest x-ray, so lung cancer was suspected. Multiple scattered whitish small elevations from trachea to bronchial trees were found on bronchoscopic exam. We mistook these lesions for metastases from lung cancer and biopsies of these lesions were done. Transbronchial biopsy for right lower lobe mass lesion was also done. But biopsies from trachea and bronchus revealed TPO rather than lung cancer. Transbronchial lung biopsy of right lower lobe mass was diagnosed adenocarcinoma of lung. So TPO combined with adenocarcinoma of lung was diagnosed.

      • KCI등재

        The Identification of Aucklandiae Radix, Inulae Radix, Vladimiriae Radix and Aristolochiae Radix, Using Macroscopic, Microscopic and Physicochemical Methods

        Yoon, Jee-Hyun,Park, Ha-Yeong,Kim, Tae-Ju,Lee, Seung-Ho,Kim, Jung-Hoon,Lee, Guem-San,Kim, Hong-Jun,Ju, Young-Sung The Society of Korean Medicine 2014 대한한의학회지 Vol.35 No.4

        Objectives: This study aimed for establishing the discriminative criteria for Aucklandiae Radix, Inulae Radix, Vladimiriae Radix and Aristolochiae Radix, which can be confused as 'Mokhyang', because of similar appearances and synonyms. Methods: Morphological characteristics of dried herbal medicines were compared by macroscopic observation. To examine microscopic features of 'Mokhyang', paraffin embedding and the staining by using Ju's method were conducted. Physicochemical experiments were performed using HPLC analysis and antioxidant assay. Results: The types of stem, phyllotaxy and leaf shape were chosen as macroscopic criteria and the size, oil spots, color and root top as well as phloem and central cylinder were compared using microscopic features. The HPLC results showed different amounts of costunolide and dehydrocostuslactone among Aucklandiae Radix, Inulae Radix and Vladimiriae Radix. However, Aristolochiae Radix only contained aristolochic acid. The antioxidant assays also showed that Vladimiriae Radix exhibited strongest antioxidant activity followed by Aucklandiae Radix, Inulae Radix and Aristolochiae Radix. Conclusions: These results demonstrate that macroscopic, microscopic and physicochemical methods would be useful tools for the discrimination of 4 kinds of 'Mokhyang'.

      • Sputter로 제작된 BN박막의 물리적 특성

        현준원,주종일 단국대학교 1999 論文集 Vol.34 No.-

        We have studied annealing properties of Boron Nitride(BN) thin films. BN thin films were successfully grown on sillicon(100) substrate by rf magnetron sputter deposition. The effects of various annealing on BN thin films have been studied. The Fourier transform infrared absorption spectroscopy (FT-IR) of the depositied BN film (7000Å-1000℃-1-1hour) showed a strong absorption 1090 ㎝-1 clearly indication cubic structure. Surface roughness was observed by Atomic Force Microscope (AFM) and it shows that the roughness increase the phase of cBN. Using Dynamic ultra micro hardness tester, hardness of annealing BN thin film (7000Å-750℃-1-1hour) is about 4000 kgf/mm2 and it shows that it has the possibility of application as hard material. Therefore we conclude that the annealing temperature is related with formation of cBN phase.

      • KCI등재

        Effect of Impact Velocity on Interface Characteristics of HT‑9 Steel Joints Fabricated by Magnetic Pulse Welding

        Jun‑Woo Song,Jin‑Ju Park,Gyoung‑Ja Lee,Min‑Ku Lee,Kyu‑Hyun Park,Soon‑Jik Hong,Jung Gu Lee 대한금속·재료학회 2020 METALS AND MATERIALS International Vol.26 No.3

        The weldability window in magnetic pulse welding (MPW) is proposed for the end-closure joining of HT-9 steel tubularworkpieces. Based on both theoretical and experimental investigations, the impact velocity of the flyer tube at the momentof collision had a dominant effect on the bonding characteristics of the resultant joints and the optimal impact velocity wasestimated to be in the range of 265–290 m/s in this alloy system. Under the optimal process conditions, no leak was detectedduring helium leak testing. Moreover, the integrity of the joint interface was preserved until the tube section ruptured duringinternal pressure burst testing. For HT-9 steel, the ductile δ-ferrite phase produced by the localized interfacial melting duringMPW acted as an effective obstacle to crack propagation, thereby enhancing the fracture resistance of the joint interface. Allof the results demonstrated the high integrity and durability of the HT-9 steel tube assembly fabricated by the MPW process.

      • Ultrasoft X선을 이용한 탄수화물분해효소를 고생산하는 Lipomyces Starkeyi 돌연변이 개발 및 특성 연구

        전선미,정종,노은민,김현주,김도만 전남대학교 촉매연구소 2000 觸媒硏究 論文集 Vol.21 No.-

        We have isolated a carbohydrase(dextranase and amylase; DXAMase) hyper-producing constitutive mutant from Lipomyces starkeyi JLC26 using ultrasoft X-ray irradiation obtained from Pohang accelerator laboratory(PAL). After partial purification of dextranase and amylase by membrane filtration, PEG, and DEAE-Sepharose column chromatography, the specific activities of amylase and dextranase were 3193 and 2822 unit/mg, respectively. The pH effects for activity and stability of both enzymes were similar to each other: Optimum pH and temperature for activity were at 5.5 and 50℃ and optimum ranges for stability were at pH 2.5-6.0 and 4-37℃, respectively. When the enzyme and maltotriose were reacted, glucose, maltose, isomaltose, maltotriose, panose and α (1→6) glucosylmaltotriose were produced by disproportionation reaction. When the enzyme and nigerose were reacted, glucose, nigerose, new product were produced.

      • KCI등재

        半夏瀉心湯이 CCl4 로 유도된 간중독 흰쥐에 미치는 영향

        朱旺錫,朴賢俊,尹炳局,鄭成伊,朴宣東 대한본초학회 1999 大韓本草學會誌 Vol.14 No.2

        The purpose of this study is to observe the effect of Banhasasimtang on serum reaction in CCI₄ treated rats. In this study the experimental rats divided five group(Normal, Control, Sample A, Sample B and Sample C group) Under the same condition Normal group was fed basal diet and water, Control group was injected carbon tetrachloride(CCI₄ 0.5㎖/㎏) and basal diet for 2 weeks, Sample A group was injected carbon tetrachloride(CCI₄0.5㎖/㎏) and fed the Bahasasimtang extract(10㎖/㎏) for 2 weeks, Sample A group was injected carbon tetrachloride(CCI₄ 0.5㎖/㎏) and fed the Banhasasimtang extract(10㎖/㎏) for 2 weeks, Sample B group was fed the Banhasasimtang extract(10㎖/㎏) for 2 weeks and injected carbon tetrachloride(CCI₄ 0.5㎖/㎏), Sample C group was fed the Banhasasimtang extract(10㎖/㎏) for 2 weeks. The change of GOT, GPT, γ-GPT, ALP, LDH activity and Bilirubin level in blood serum. The obtained results are summarized as follows : 1. In the change of GOT GPT contents, as compared with control group, sample group was significantly decreased. 2. In the change of γ-GPT contents, as compared wth control group, sample group was significantly decreased. 3. In the change of ALP contents, as compared with control group, sample group was significantly decreased. 4. In the change of LDP contents, as compared with control group, sample group was significantly decreased. 5. In the change of Bilirubin contents, as compared with control group, sample group was significantly decreased.

      • KCI등재
      • 3급 치근분지부 골결손에서 미세전류자극이 치주조직의 재생에 미치는 영향에 관한 실험적 연구

        김영준,정현주 전남대학교 치과대학 1998 전남치대논문집 Vol.10 No.1

        Several experimental studies showed that the application of small amounts of electric current to bone stimulated osteogenesis at the site of the cathode and suggests that the application of electrical currents to periodontal defects could promote bone and cementum formation. The purpose of this study was to determine the effect of direct microcurrent to the periodontal regeneration of class Ⅲ furcation defects in dogs. Class Ⅲ furcation defects were surgically created on the third and the fourth premolars bilaterally in the mandibles of nine mongrel dogs. Experimental periodontitis were induced by placing small cotton pellets into the created defects for 3 weeks. The experimental sites were divided into three groups according to the treatment modalities: Group Ⅰ- surgical debridement only; Group Ⅱ- allogenic demineralized freeze dried bone grafting; Group Ⅲ- allogenic demineralized freeze dried bone grafting and electrical stimulation. For fluorescence microscopic evaluation, calcein, oxytetracycline HCI and alizarin red were injected 2, 4 and 8 weeks(3 days prior to sacrifice) after surgery. The animals were sacrificed in the 1st, 2nd, 4th and 8th week after periodontal surgery and the decalcified and undecalcified specimens were prepared for histological and histometrical examination. After the first and the second weeks, gingival recession was more severe in group Ⅰ than groups Ⅱ and Ⅲ. After the fourth and the eighth weeks, there was no difference in the width of junctional epithelium and connective tissue attachment among the three groups, but the width of connective tissue attachment increased in group Ⅱ at the eighth week, compared to the fourth week. The amount of bone repair in new attachment was significantly greater in group Ⅲ, compared to groups Ⅰ and Ⅱ. New attachment formation was significantly greater in group Ⅲ, compared to groups Ⅰ and group Ⅱ. These results suggest that electrical stimulation using microcurrent generator could be a useful tool for periodontal regenerative therapy in class Ⅲ furcation defect.

      • 관상동맥질환의 중증도와 혈중지질치 및 아포지단백과의 상관관계

        임현주,황종현,류재근,정병천,조용근,채성철,전재은,박의현 慶北大學校 醫科大學 1997 慶北醫大誌 Vol.38 No.1

        목적 : 관상동맥질환의 위험인자로서 혈청지질 및 혈장 지단백에 대한 관심이 높아지고 있고 또 아포지단백이 관상동맥 질환을 일으키는데 다른 지질보다 더 중요하다는 연구가 많이 발표되고 있으나 우리나라에서는 아포지단백에 대한 연구가 그리 많지 않은 편이다. 이에 저자등은 혈중지질치와 새로운 위험인자로 알려지고 있는 아포지단백치를 측정하고 이들과 관상동맥질환 중증도와의 상관 관계를 알아보았다. 대상 및 방법 : 관상동맥질환이 의심되어 관상동맥조영술을 실시한 69명의 환자를 대상으로 하였으며 12시간 이상 공복후 혈청을 채취하여 총콜레스테롤, 중성지방, HDL-콜레스테롤, 아포지단백 AI (ape AI), 아포지단백 B (ape B)를 측정하였다. 관상동맥조영상 50%이상의 협착이 있는 혈관의 수 (lesion number), 최대협착을 합한 값 (lesion score), 각 분절의 최대협착을 합한 값 (total score), 가장 심한 협착 값 (peak stenosis) 등으로 관상동맥 중증도를 알아본 다음 이들과 혈청지질치, 아포지단백과의 상관 관계를 비교해 보았다. 상관 관계는 Spearman's correlation coefficient를 구하였다. 결과 : 관상동맥질환의 중증도와 각 지질치 간의 상관 관계를 비교해 보았을때 lesion number와 관계있는 것은 연령 (r=0.2789), 중성지방치 (r=0.2829)이며 lesion score와 관계있는 것은 연령(r=0.2911), 중성지방치0 (r=0.3316), 총콜레스테롤과 HDL-콜레스테롤의 비 (r=0.2361), apo B 치(r=0.2759), apo AI과 apo B의 비 (-0.3154)로 나타났다. Total score는 연령 (r=0.3100), 총콜레스테롤치 (r=0.2452), 중성지방치 (r=0.3022), 총콜레스테롤과 HDL-콜레스테롤의 비 (r=0.2770), apo B치 (r=0.2927), apo AI과 apo B의 비 (r=-0.3408)와 연관이 있었고 peak stenosis는 중성지방 치(r=0.3305), ape B 치 (r=0.2968), apo AI과 apo B의 비 (r=-0.3977)와 관계가 있었다. 연령으로 조정하여 partial correlation을 좌면, 관상동맥조영술상 중증도는 중성지방치 (r=0.3408), apo B 치(r=0.2877), apo AI과 apo B의 비 (r=-0.3460)와 유의한 상관 관계가 있었다. 이중 ape AI과 ape B의 비는 lesion score (r=-0.2640), total score (r=-0.3057), peak stenosis (r=-0.3460)와 유의한 상관관계를 보였다. 결론 : 이상의 결과로 보아 apo B치 그리고 apo AI과 apo B의 비가 관상동맥 중증도의 예견인자로 다른 혈중 지질 치보다 더 유용하다는 것을 알 수 있었다. Objectives : Recently, it was reported that the measurements of apolipoprotein levels may be valuable in the clinical assessment of coronary artery disease severity. However there are a few reports regarding to the relationship between coronary artery disease severity and apolipoprotein levels in Korea. Thus, we measured serum lipid and apolipoprotein levels and studied the relationship between coronary artery disease severity and serum lipids and apolipoproteins levels. Subjects and Methods : The 69 patients who underwent coronary angiography to evaluate chest pain were subjected to this study. We measured the levels of serum cholesterol, triglycerides, HDL cholesterol, apolipoprotein AI(apo AI) and apolipoprotein B(Apo B) and measured the severity of coronary artery disease by lesion number, lesion score, total score and peak stenosis. Then, we studied the relationship between coronary artery disease severity and apolipoproteins and calculated the correlation coefficient. Results : The results were as follows. There are significant correlation(r=0.3) between age, triglycerides, apo B levels, apo AI/B ratio and coronary artery disease severity. In controlling for age, tyiglycerides, apo B levels and apo AI/B ratio shows significant correlation(r=0.3) with coronary artery disease severity. Especially, apo AI/B ratio shows significant correlation(r=0.3) with lesion number, total score and peak stenosis. Conclusion : These results suggest that the apo B levels and the ratio of apo AI/B can be used as significant independent predictor for coronary artery disease severity rather than other serum lipid levels.

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