Park, Joon Young;Jeong, Young Mi;Jeong, Soo Jin;Seo, Son Sang
Clinical and Experimental Pediatrics
/
v.48
no.5
/
pp.518-522
/
2005
Purpose : To evaluate the effect of inhaled hypertonic saline solution in hospitalized infants with bronchiolitis. Methods : A randomized double blind trial was performed from October 2003 to May 2004. A total of eighty patients <1 year of age with a clinical diagnosis of acute viral bronchiolitis were enrolled and assigned to receive either of the following : inhalation of 2 mL(0.5 mg) fenoterol added to 2 mL of 0.9 percent saline solution(group 1; n=40) or 2 mL(0.5 mg) fenoterol added to 2 mL of 3 percent saline solution(group 2; n=40). This therapy was repeated at six hours interval after admission. They were evaluated daily just before and 20 minutes after nebulization. The outcome measures included changes in clinical severity score(based on respiratory rate, presence of wheezing, retraction, and general condition) after nebulization and duration of hospitalization. Results : In the clinical severity score, a significant improvement was observed during the 72 hours of hospitalization in both groups(P<0.05). The basic clinical severity scores before inhalation were decreased significantly faster in group 2 as compared to group 1 on each day of treatment(P<0.05). The mean duration of hospital stay was significantly reduced in group 2 than group 1($5.9{\pm}1.9days$ versus $7.4{\pm}2.0days$, P<0.05). No adverse effects were associated with inhaled therapy. Conclusion : These results suggest that a nebulized 3 percent saline solution plus 0.5 mg fenoterol may be more effective than a 0.9 percent saline solution plus 0.5 mg fenoterol in accelerating the clinical recovery of infants with viral bronchiolitis.
Rhee, Kang Won;Yun, Sin Weon;Lee, Dong Keun;Choi, Eung Sang;Yoo, Byeong Hoon;Lee, Mi Kyung
Clinical and Experimental Pediatrics
/
v.48
no.6
/
pp.640-648
/
2005
Purpose : Kawasaki disease(KD) is known as an acute multi-systemic vasculitis with various immunologic abnormalities. Adhesion of leukocyte to endothelial cells is a key event in the sequence of inflammatory response. This study was performed to investigate the clinical significance of serum soluble intercellular adhesion molecule-1(sICAM-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1) in acute and subacute stages of typical KD for diagnostic and prognostic value. Methods : A typical KD group was 32 patients who were hospitalized from Jan. 2002 to Jun. 2004 was enrolled. Control was 16 non-KD patients with febrile illness. sICAM-1 and sVCAM-1 were measured and compared by Echocardiographic and clinical findings and cardiac troponin T and I. Results : sICAM-1 and sVCAM-1 levels of acute KD were significantly elevated over control(P=0.019 vs. P=0.049, respectively) and sICAM-1 was significantly decreased in subacute stage(P=0.0015). sICAM-1 and sVCAM-1 had positive correlation with each other in both stages(P=0.0067, P=0.015, retrospectively). Neither sICAM-1 nor sVCAM-1 correctly reflected the coronary abnormalities and responsiveness to intravenous gammaglobulin(IVGG) in both stages. But sVCAM-1 was significantly increased in the carditis group in both stages(P=0.025, P=0.014, retrospectively) and had a positive correlation with troponin T(r=0.63, P=0.00063). Conclusion : The levels of sICAM-1 and sVCAM-1 were not very useful tools for detecting and predicting subsequent coronary abnormalities and responsiveness to IVGG in KD patients. However, sVCAM-1 appears to play a significant role in carditis of KD. Further studies are needed about various adhesion molecules and cytokines in the pathogenesis of KD.
Park, C.K.;Cheong, H.T.;Kim, J.H.;Lee, S.C.;Yang, B.K.;Kim, C.I.
Clinical and Experimental Reproductive Medicine
/
v.25
no.3
/
pp.315-322
/
1998
The objective of this study was to test the effect of catalase on penetration in vitro by spermatozoa preincubated with xanthine and/or xanthine oxidase. The penetration rates were, significantly (p<0.05) higher in spermatozoa preincubated without (66 and 38%) than with (40 and 15%) catalase for 0 and 30 min. When spermatozoa were preincubated and inseminated in medium with xanthine, the penetration rates were significantly higher (p<0.05) in medium with (68, 70 and 49% for 0, 30 and 60 min) than without (33, 41 and 19% for 0, 30 and 60 min) catalase. However, in oocytes were' inseminated with spermatozoa pre incubated with or without catalase in the presence of xanthine oxidase, no decrease in penetrations rates were observed for up to 60 min of preincubation. In another experiment, the penetration rates were significantly (p<0.00l) higher in medium with (75, 55 and 52%) than without (14, 4 and 8%) catalase when oocytes were inseminated with spermatozoa preincubated for 0, 30 and 60 min in the presence of xanthine plus xanthine oxidase. On the other hand, The rate of polyspermy in oocytes penetrated in medium without catalase in the presence of xanthine or xanthine plus xanthine oxidase decreased with time of spermatozoa preincubation. However, no differences were observed in polyspermy rates in the medium with xanthine oxidase alone despite presence of catalase. These results indicate the advantages of spermatozoa pre incubated with xanthine plus xanthine oxidase in the presence of catalase to increase penetration potential and with suppressed polyspermy in porcine.
Ji, Cheol;Cho, Kyung-Keun;Lee, Kyung Jin;Park, Sung Chan;Cho, Jung Ki;Kang, Joon Ki;Choi, Chang Rak
Journal of Korean Neurosurgical Society
/
v.30
no.3
/
pp.263-271
/
2001
Objective : Glioblastomas, the most common type of primary brain tumors, are highly invasive and cause massive tissue destruction at both the tumor invading edges and in areas that are not in direct contact with glioma cells. As a result, patients with high-grade gliomas are faced with a poor prognosis. Such grim statistics emphasize the need to better understand the mechanisms that underlie glioma invasion, as these may lead to the identification of novel targets in the therapy of high grade gliomas. Protein kinase C(PKC) is a family of serine/threonine kinases and an important signal transduction enzyme that conveys signals generated by ligand-receptor interaction at the cell surface to the nucleus. PKC appears to be critical in regulating many aspects of glioma biology. The purpose of this study was to assess accurately the role of PKC in the invasion regulation of human gliomas based on hypothesis that protein kinase C(PKC) is functional in the process of glial tumor cell invasion. Method : To test this hypothesis, U-87 malignant glioma cell line intracellular PKC levels were up and down regulated and their invasiveness was tested. Intracellular PKC level was characterized using PKC activity assays. Invasion assays including barrier migration and spheroid confrontation were used to study the relationship between PKC concentration and invasiveness. Result : The cell line which were treated by PKC inhibitor tamoxifen and hypericin exhibited decreased PKC activity and decreased invasive abilities dose dependently both in matrigel invasion assay and tumor spheroid fetal rat brain aggregates(FRBA) confrontation assay. However, the cell line that was treated by PKC activator 12-O-tetradecanylphorbol-13acetate(TPA) did not exhibit increases in either PKC activity or invasive ability. Conclusion : These studies suggest that PKC may be a useful molecular target for the chemotherapy of glioblastoma and other malignancies and that a therapeutic approach based on the ability of PKC inhibitors may be helpful in preventing invasion.
Kim, Eun-Kyu;Jung, Yeong-Sang;Chun, Soul;Joo, Young-K.;Jeong, Hyeung-Geun
Korean Journal of Soil Science and Fertilizer
/
v.42
no.4
/
pp.289-300
/
2009
Flora distribution was surveyed in the newly reclaimed tidal flats in the west coastal area in Korea to understand changes in flora dynamics after reclamation. The surveyed reclaimed tidal flats were the newly reclaimed tidal flat in Hangdam, the mid Kyonggi Bay in 2002, and three reclaimed lands in Seukmun and Daeho, Chungnam, and Hangdam in Kyonggi Bay, of which reclamation years based on embankment were 7, 9 and 18 years, respectively. In the newly reclaimed tidal flat, the dominant flora was Suaeda japonica and other florae were rare, while various halophytes and glycophytes were distributed in the reclaimed lands. On the newly reclaimed tidal flat, four species of halophytic pioneer florae, Salicornia europaea, Suaeda glauca, Suaeda japonica, and Suaeda maritime occurred, and along with age facultative halophyte and glycophyte occurred sequently. On the reclaimed lands, the florae were more complex with various facultative halophyte and glycophyte, so these were predominated rather than pioneer halophyte, while one of pioneer halophyte that Suaeda japonica was not occurred. Increasing of various facultative halophyte and glycophyte, and decreasing of pioneer halophyte indicated that flora changed toward to increase of facultative halophyte and glycophyte by aged after reclamation. On the newly reclaimed tidal flat the ratio of flora species changed rapidly with the invasion of plant. This implied that the flora had begun to change in the early stage of reclamation. Facultative halophyte and glycophyte started to increase on the early stage of reclamation but relative density and frequency of pioneer halophyte was higher than facultative halophyte and glycophyte. According to the investigation up to 3 years after reclamation, pioneer halophyte predominated on it. Although flora changed, there were common representative halophytes among the reclaimed tidal flats: Salicornia europaea, Suaeda maritima, and Suaeda glauca as pioneer halophyte, Aster tripolium, Sonchus brachyotus, and Phragmites communis as facultative halophytes.
Kim, Bo-Kyung;Lee, Jin-Yong;Ham, Sang-Hee;Lee, Sang-Suk;Hwang, Do-Guwn
Journal of the Korean Magnetics Society
/
v.13
no.2
/
pp.53-58
/
2003
Annealing effects of exchange bias fields ($H_{2ex}$(top), $H_{lex}$ (bottom)) on composite type NiFe/[FeMn/Mn]$_{80}$/NiFe multilayers have been studied. Three samples with ultra-thin Mn inserted layers on glass/Ta(50 $\AA$)/NiFe(150 $\AA$)/[F $e_{53}$M $n_{47}$(1.25 $\AA$)/Mn(0 $\AA$, 0.11 $\AA$, 0.3 $\AA$)]$_{80}$/NiFe(90 $\AA$)/Ta(50 $\AA$) were prepared by ion beam sputtering. The average x-ray diffraction peak ratios NiFe(111) of FeMn (111) fcc textures for the Mn inserted total thicknesses of 0 $\AA$, 9 $\AA$, and 24 $\AA$ were about 0.65, 0.90, and 1.5, respectively. For the sample without Mn inserted layer, the $H_{2ex}$ of 260 Oe up to 300 $^{\circ}C$ disappeared at 350 $^{\circ}C$. For two multilayer samples with ultra-thin Mn layers of 0.11 $\AA$ and 0.3 $\AA$, the $H_{2exs}$ of 310 Oe and 180 Oe up to 300 $^{\circ}C$ endured of 215 Oe and 180 Oe at 350 $^{\circ}C$, respectively. The $H_{ex}$ (bottom)s of three samples decreased from 100 Oe to 70 Oe up to 250 $^{\circ}C$, while these values increased beyond 300 $^{\circ}C$. This observation can be attributed to less diffusive path of Mn atoms in bottom NiFe than top NiFe layer. The top and bottom coercive fields slightly varied about 5 Oe∼10 Oe. From these results, we could obtain the enhancement of exchange coupling intensity and thermal stability by an ultra-thin Mn inserted layer on NiFe/[FeMn/Mn]$_{80}$/NiFe Multilayers.
Journal of Korean Home Economics Education Association
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v.17
no.3
s.37
/
pp.83-96
/
2005
To assess the food intake and diet quality of high school students who live in Chuncheon area, a dietary survey using 24-hour recall method was conducted with 318 subjects. $71.4\%$ of total food intake was in the form of plant foods and the rest on the form of animal food. Diet quality was assessed by food group pattern, dietary diversity score(DDS), and dietary variety score(DVS). When counting the major food groups consumed, $37.1\%$ of subjects had a DDS of 3 and $48.4\%$ of subjects had a DDS of 4. When investigating the consumption pattern of the major five food groups, only $14.5\%$ of subjects consumed foods from all five groups. On average, subjects habitually consumed 26.7 different foods daily, with the mean score of diet variety for males (27.3) being significantly higher than for females (25.8) . Correlation coefficients between nutrient adequacy ratio (NAR) and DVS ranged from r=0.39 for vitamin $B_2$ to r=0.61 for phosphorus. NAR also improved as the number or foods or rna groups consumed increased (p<0.001). Associations between the NAR and high level of DVS was more positive than those between the NAR with DDS. When assessing the dietary quality of subjects using DDS and DVS, many people appeared not to have a desirable food intake. Therefore, to lead them to have nutritionally balanced diet, educating students and their parents on nutrients and suggesting guidelines for a desirable diet is considered to be essential so that they can intake from all of major food group and have various foods in their diet.
Kim, Young-Woo;Park, Neung-Hwa;Ji, Sang-Keun;Choi, Hyun-Muck;Lee, Sin-Hwa;Lee, Keum-Hee;Jang, Tae-Won;Jung, Maan-Hong
Tuberculosis and Respiratory Diseases
/
v.42
no.1
/
pp.76-83
/
1995
Background: Despite advances in chemotherapy, the treatment of inoperable non-small cell carcinoma of the lung remains poor. According to the recent reports, the response rates of mitomycin, vinblastine, and cisplatin(MVP) chemotherapy are higher than those of other cisplatin based polychemotherapy and MVP chemotherapy can be used as neoadjuvant chemotherapeutic regimen. But the overall response rates of MVP chemotherapy range from 17 to 53 percent, so we studied the effect of MVP chemotherapy in advanced non-small cell lung cancer. Method: We treated forty patients with stage III or IV non-small cell lung cancer with two courses of MVP chemotherapy($8mg/m^2$ of mitomycin on day 1, $6mg/m^2$ of vinblastine on day 2 & day 14, and $100mg/m^2$ of cisplastin on day 1) at 4 weeks interval. Then all patients were evaluated the response of chemotherapy 4 weeks later, and received further chemotherapy, palliative radiotherapy or supportive therapy according to the patient's condition. We also determined the median survival time and prognostic factors. Results: 1) Nine patients(23%) had a partial reponse, 23 patients(57%) had a stable disease, and disease progressed in 8 patients(20%). There were no patients with complete response. 2) The overall median survival time was 36 weeks(range, 9 to 119+ weeks). The median survival time of responder(partial response) and non-responder(stable and progressed) groups were 60 weeks(range, 36 to 82+ weeks) and 31 weeks(range, 9 to 119+ weeks) respectively(p=0.03). 3) The median survival time of the female group was 71 weeks and significantly prolonged in comparision with 35 weeks of the male group(p=0.01). But, the other prognostic factors didn't affect the survival time and response rate. 4) The median survival times of chemotherapy group and chemotherapy with palliative radiotherapy group were not significantly different. Conclusion: MVP combined chemotherapy is unsatisfactory in improving survival in advanced non-small cell lung cancer. Therefore, further studies are needed to find more active new agents and to estabilish the efficacy of the combined treatment with radiotherapy and/or surgery.
Background : Non-smalll lung cancer(NSCLC) develops as a result of the accumulation of multiple genetic abnormalities. Loss of heterozygosity(LOH) is one of the most frequent genetic alterations that is found in NSCLC, and the chromosomal regions that display a high rate of LOH are thought to harbor tumor suppressor genes(TSGs). This study was done to determine the frequency of LOH in 21q with the aim of identifying potential TSG loci. Method : Thirty-nine surgically resected NSCLCs were analysed. Patients peripheral lymphocytes were used as the source of the normal DNA. Five microsatellite Inarkers of 21q were used to study LOH : 21q21.1(D21S1432, and D21S1994); 21q21.2-21.3(D21S1442) ; 21q22.1(21S1445) ; and 21q22.2-22.3(D21S266). The fractional allelic loss(FAL) in a tumor was calculated as the ratio of the number of markers showing LOH to the number of informative markers. Result : LOH for at least one locus was detected in 21 of 39 tumors(53.8%). Among the 21 tumors with LOH, 5(21.8%) showed LOH at almost all informative loci. Although statistically not significant, LOH was found more frequently in squamous cell carcinomas(15 of 23, 65.2%) than in adenocarcinomas(6 of 16, 37.5%). In the squamous cell carcinomas the frequency of LOH was higher in stage II-III (80.0%) than in stage I (53.8%). The FAL value in squamous cell carcinomas($0.431{\pm}0.375$) was significantly higher than that found in adenocarcinomas($0.l92{\pm}0.276$). Conclusion : These results suggest that LOH on 21q may be involved in the development of NSCLC, and that TSG(s) that contribute to the pathogenesis of NSCLC may exist on 21q.
Park, Ji Young;Pack, Jong Hae;Park, Hye Jung;Bae, Seong Wook;Shin, Kyeong Cheol;Chung, Jin Hong;Lee, Kwan Ho
Tuberculosis and Respiratory Diseases
/
v.54
no.2
/
pp.210-218
/
2003
Background : Sex specific cross sectional reference values for the lung function indices usually employ a linear model with a term for age and height. The purpose of this study was to determine the effects of the body mass index (BMI), the fat percentage of the body mass and the fat-free mass index (FFMI) on the forced expiratory volume curve. Methods : Between January 2000 and December 2001, a total of 300 subjects, 150 men and 150 women (mean age : $45{\pm}13$ years), with a normal lung function were enrolled in the study sample. This study measured the $FEV_1$, FVC and $FEF_{25-75%}$ from the forced expiratory volume curve by a spirometer and the body composition by a bioelectrical impedance method in all subjects. Multiple regression analysis was used in order to examine the effects of the body composition on the parameters derived from the forced expiratory volume curve. Results : After adjusting for age, the BMI and Fat percentage improved the descriptions of the FVC (p<0.05, $r^2=0.491$) and $FEV_1$ (p<0.05, $r^2=0.654$) in women. In contrast, the FFMI contributed significantly to the FVC (p<0.05, $r^2=0.432$) and $FEV_1$ (p<0.05, $r^2=0.567$) in men. The $FEF_{25-75%}$ correlated with the fat percentage in women (p<0.05, $r^2=0.337$). Conclusion : These results suggest that the BMI, the fat percentage and the FFMI are significant determinants of the forced expiratory volume curve. The plmonary function test, when considering the BMI, the fat percentage and the FFMI, might be useful in clinical applications.
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