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박민경,서원석,박재옥,김창휘,고은석,임철완 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
Tuberculous peritonitis is discovered from sixty to ninty percent of pulmonary tuberculosis patients. Clinical symptoms are nonspecific such as mild fever, weakness and malaise but show tenderness in right lower abdomen and abdominal distension. Diagnosis is confirmed by laparoscopic and pathologic findings. We report a case of tuberculous peritonitis in an 11-year-old boy who was hospitalized because of abdominal distension with pain on right lower abdomen which had developed one day before he came to hospital. Chest X-ray showed pleural effusion on both sides. We did laparoscopic examination and observed diffuse nodular infiltration. In biopsy specimen we observed osseous granuloma and acid-fast bacilli in AFB stain.
Effect of Endothelin-1 on Proliferation and Differentiation of Rat Tracheal Epithelial Cells
Chang Soo Kim,Sae Ock Oh,Jae Suk Woo,Jin Sup Jung,Yong Keun Kim,Sang Ho Lee 대한생리학회-대한약리학회 1998 The Korean Journal of Physiology & Pharmacology Vol.2 No.6
<P> A number of substances involved in the proliferation and differentiation of the tracheobronchial epithelium have been identified. The defects in the control of the proliferation and differentiation of tracheobronchial epithelial cells appear to constitute crucial steps in the transition of normal cells to neoplastic ones. Endothelin-1 is produced by tracheal epithelial cells, and its receptors are present in tracheal epithelial cells. However, the effect of endothelin-1 on the proliferation and differentiation of tracheal epithelial cells has not been clearly elucidated. This study was undertaken to investigate these actions of endothelin-1 in primary cultured cells of rat tracheal epithelia. Endothelin-1 stimulated proliferation of tracheal epithelial cells 1.5-fold when compared with that of control cells. Endothelin-1 increased mitogen-activated protein kinase (MAPK) activity. Herbimycin A, a tyrosine kinase inhibitor, inhibited endothelin-1-induced proliferation of epithelial cells. The treatment of endothelin-1 during the primary culture of tracheal epithelial cells increased AB-PAS-stained cell population and ciliated cell population 6.5 fold and 1.5 fold, respectively, when compared with those in control cells. The responsiveness to carbachol and forskolin in the Cl<SUP>-</SUP> secretion was increased 1.7 and 1.9 fold, respectively, in the endothelin-treated epithelial cells. These results indicated that endothelin-1 increases proliferation via MAPK pathway and stimulates differentiation to secretory and ciliated cells in rat tracheal epithelial cells.
심실중격결손 환아에서의 M-형 심에코도를 이용한 좌우 단락량 측정
김창휘,이길로,박재옥,이상주,김길현,김현국 순천향대학교 1988 논문집 Vol.11 No.3
The ratio of M-mode echocardiographic left atrial dimension to aortic root dimension has been reported to correlate with left to right shunt(Qp/Qs) in children with isolated ventricular septal defect. In 30 cases with isolated ventricular septal defect, we retrospectively compared angiographic Qp/Qs, Pp/Ps and Rp/Rs with the ratio of M-mode echocardiographic LAD AoD, Pp Ps and Rp/Rs, with the ratio of M-mode echocardiographic LAD AoD, Pp Ps and Pp/Rs, Pp/Ps and Pp/Pp/Rs with the ratio of M-mode echocardiographic LAD, AoD, Pp Ps and Rp/Rs. The results are as follows: 1) The cases of male were 14(46.7%), female were 16(53.3%). 2) The age of cases were distributed evenly between 1 and 18 year of age. 3) The anatomical type of ventricular septal defect demonstrated by echocardiography and operation were 7(23.3%) subvalvular, 23(76.7%) perimembranous. 4) In the mean of each echocardiographic and angiographic value, Qp/Qs was 1.85±0.75, LAD AoD was 1.35±0.29, Pp/Ps was 0.35±0.23 RVOTD AoD was 0.71±0.24, Rp/Rs was 0.19±0.13, and RVOTD/LAD was 0.56±0.20. 5) The correlation between LAD/AoD and Qp/Qs has not significance stastically(r=0.49, Y=1.27X + 0.13, p>0.05). The RVOTD/AoD and Pp/Ps has not positive correlation(r=0.32, Y=0.30X + 0.14, p>0.05). The RVOTD/LAD and Rp/Rs has not positive correlation in linear regression analysis(r=0.36, Y=0.25X + 0.05, p>0.05). But, the correlation between LAD/AoD and Qp/Qs has significance stastically in 16 children without pulmonary hypertension or pulmonary resistance(r=0.60, Y=1.27X + 0.13, p>0.05). It means that the LAD/AoD and Qp/Qs has significance stastically in 16 children without pulmonary hypertension or pulmonary resistance(r=0.60, Y=1.27X + 0.13, p>0.05). It means that the LAD is not increased furthermore in case of pulmonary hypertension or resistance. Our findings suggest that it is difficult to predict Qp/Qs, Rp/Rs and Pp/Ps in the VSD patients with pulmonary hypertension or pulmonary resistance from M-mode echocardiographic measurement only.
임창규,오경환,정철희,박상철,박재옥,이상주 순천향대학교 1992 논문집 Vol.15 No.2
Congenital sensory neuropathy with anhidrosis(CSNA) is a well-defined entity among a group of sensory deficiency syndromes. The primary clinical features of CSNA are congenital analgesia, which leads to self-mutilation and painless fracture; inability to sweat, which leads to defective thermoregulation; and, finally, mental retardation. Here, we report a case of typical CSNA in 8-month-old male who had unexplained high fever without sweating, self-mutilating his tongue and of his fingers, and mental retardation and was diagnosed by skin biopsy, histamine challange test, and iodine-starch test.
ABSOLUTELY STABLE EXPLICIT SCHEMES FOR REACTION SYSTEMS
Lee, Chang-Ock,Leem, Chae-Hun,Park, Eun-Hee,Youm, Jae-Boum Korean Mathematical Society 2010 대한수학회지 Vol.47 No.1
We introduce two numerical schemes for solving a system of ordinary differential equations which characterizes several kinds of linear reactions and diffusion from biochemistry, physiology, etc. The methods consist of sequential applications of the simple exact solver for a reversible reaction. We prove absolute stability and convergence of the proposed explicit methods. One is of first order and the other is of second order. Numerical results are included.
Sun-Ock Hong,Min-Jeong Kim,Chang-Ki Shim,Jae-Hyeong Lee,Sang-Gu Park 한국농약과학회 2021 한국농약과학회 학술발표대회 논문집 Vol.2021 No.11
During summer lettuce cultivation, the high temperature causes a decrease in the quality and quantity of lettuce. The purpose of this study is to analyze the effect on growth and quality of lettuce treatment using the treatment concentration, 0.4%, 2%, and 10% of Chlorella fusca (CF). During August-September, when CF culture was applied to green lettuce and red lettuce 3 times at 7-day intervals for each dilution concentration, 10% and 2% CF treatment, there was a significantly improved in leaf length and fresh weight compared to untreated control (CK) and 0.5 mM salicylic acid (SA) treatment. But 0.4% CF treatment decreased leaf length and fresh weight compared to CK and 0.5 mM SA treatment. However, in the case of leaf thickness, the 0.4% CF treatment was significantly thicker than other treatments including 0.5 mM SA. Based on the above research results, I propose for an additional research on gene expression which is needed to efficiently control the growth of lettuce by Chlorella fusca in summer.
옥한석(Ock Han Suk),김갑열(Kim Gap Youl),김창환(Kim Chang Hwan),김상욱(Kim Sang Wook),신재호(Shin Jae Ho),양재웅(Yang Jae Ung) 강원대학교 산업기술연구소 1998 産業技術硏究 Vol.18 No.-
Effective design of a database is essential for operating application systems efficiently. This paper discusses database design for a geographic information system. This goals of database design are multiple: to satisfy the information content requirements of the specified users and applications; to provide a natural and easy-to-understand structuring of the information; and to support processing requirements and any performance objectives such as response time, processing time, and storage space. Database design is a very complex process and is decomposed in three phases: conceptual, logical, and physical design. In this paper, we first collect and analyze the requirements for a geographic information system. We also perform database design for these requirements through the three design phases systematically. Our results would contribute to the effective construction of a database for a geographic information system.