백서의 복강내에 투여한 Mitomycin-C-Polyglycolic acid 제형이 장기에 미치는 영향에 관한 연구

송규상,강대영,최정목,노승무,정경수,오정연,김진향,양준목,최선웅,이진호,조준식,민병무,김용백,김창식,박근성,김승영,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

To evaluate the in-vivo effects of mitomycin-C-polyglycolic acid composite(MMC-PGA) the disk: shaped composite were implanted into the peritoneal cavity of the Sprague-Dawley rats. The pathologic changes were examined at various time points up to 12 weeks. Initially the soft tissue around the inserted disks showed capillary congestion at 3 days. Inflammatory infiltrates with foreign body giant cells appeared from the 2nd week and reached peak response at 6-8 weeks. These reaction diminished prominently at 12 weeks. No specific pathologic change was found in the liver, the kidneys, and the heart. The above results suggest that the MMC-PGA composite can serve as a new device for intraperitoneal chemotherapy of various types of cancers.

농촌노인의 우울에 미치는 영향

송민선,김수근,김남초 노인간호학회 2010 노인간호학회지 Vol.12 No.1

Purpose: The purposes of this study were to investigate the degree of perceived health status, depression and the number of chronic diseases among rural elders and to identify factors related to depression in this population. Methods: We surveyed 1,014 elderly people using structured questionnaires. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson Correlation Coefficient and multiple regression using the SAS program (version 9.1). Results: There were significant differences in perceived health status according to gender (p<.001), education level (p<.001), medical support (p=.045), alcohol consumption (p<.001), number of chronic diseases (p<.001), and stage of exercise behavior change (p=.042). There were significant differences in depression score according to religion (p=.049), education level (p=.008), smoking status (p=.016), number of chronic diseases (p=.008) and stage of exercise behavior change (p<.001). Depression was negatively related to perceived health status and positively related to number of chronic diseases. Significant factors influencing depression were age, smoking status, stage of exercise behavior change, number of chronic diseases, and perceived health status. Conclusion: Multiple factors are associated with depression among rural elders. Findings of this study indicate the importance of considering chronic disease and perceived health status when planning programs to prevent depression.

갑상선 유두선암 환자의 말초 혈액 단핵구로부터 수지상세포분화와 자가 세포독성 T 림프구 활성화 유도

송수근,최영식,박요한,이대희,장희경 고신대학교 의학부 2004 高神大學校 醫學部 論文集 Vol.19 No.1

Background: Dendritic cells (DCs) are rare leucocytes that are uniquely potent in their ability to capture, process and present antigens to T cells, and so selectively migrate through tissues to reach lymph nodes and spleen where initiation of immune responses takes place. It has been reported that a dense infilteration of dendritic cells correlates with a favorable prognosis in several types of cancer. A similar correlation also has been noted in patients with papillary carcinoma of thyroid. The purpose of this study is to determine whether DCs are generated from peripheral blood monocytes by using cytokines such as GM-CSF, TNF-α, and IL-4 and whether cytotoxic T cells activated by DCs attack the papillary carcinoma tissues. Methods: Peripheral blood was obtained from 2 patients with thyroid papillary cancer. DCs were established from monocytes by culturing in the presence of GM-CSF, Flt-3 ligand. TNF-α , and IL-4 for14 days. At day 14, expression of surface markers typical for DCs was analyzed morphologically. The immunophenotypic features of DCs such as CDla, CD83, and CD86 were analyzed by phase contrast microscopy. At day 15 DCs were incubated with thyroid cancer tissues and normal thyroid tissues for 7 days. Results: DCs were generated from the peripheral blood monocytes. The generated cells had the classic morphology of DCs. Activated cytotoxic T lymphocytes (CTLs) were observed. Veiled cell known as circulating DCs attached to the thyroid cancer tissues were observed. The CTLs activated by DCs were observed to attack the papillary carcinoma tissues by scanning electron microscope. However, normal tissues were not attacked by CTLs. Conclusion: DCs can be generated from the peripheral blood monocytes. Futhermore, the CTLs activated by DCs also can attack the papillary carcinoma tissues. These results that DCs can be used as adjuvants for adoptive immunotherapy of papillary thyroid cancer.

外國人 直接投資에 대한 硏究 : 對外經濟證屬이 經濟成長과 所得分配에 미치는 影響에 관한 實증硏究

徐東錫,金洙槿,宋燮瑋,金喆煥 亞洲大學校 1985 論文集 Vol.8 No.-

Dependency theory claims that economic dependency retards economic development and increases income inequlity within peripheral countries. On the other hand, neoclassical development theory predicts that economic linkage to the world economy facilitates economic growth and improves the income distribution. This paper aimes to test the general validity of dependency theory by using a cross section data over 1970s and time series data over the period 1962-1984 of Korea. The time series data allow us to observe the dynamics of dependency theory which emphasizes the "historical process". Four measures of economic dependency or external linkage are used to regress the economic growth rate and Gini coefficients. The control variables additionally employed in our empirical analysis are exports and domestic capital formation. The research design employed is a regression analysis incorporating lag structure. The results indicate that economic dependency has no significant negative effects on growth and income distribution. Thus we conclude that the denpendency theory is not substantiated by our empirical data. The data rather supports the neoclassical development theory.

2급 응급구조사의 성인외상환자에 대한 처치의 적절성 평가

장문수,어은경,김상현,김창섭,송근정,박한규,유지영,최동섭 대한응급의학회 1995 대한응급의학회지 Vol.6 No.2

In Korea, EMT have two classified subgroup of first and second degree : EMT-P, and EMT. For the beginning, authorization of the first EMT was made in this year through the EMT educational program. There are 8 items which EMT can perform the treatment without the supervision by a physician. But there was no previous report of pertinent assesment of treatment performed by the EMT. There upon authors have conducted review of assessment done by the EMT in EC setting, and proposed the following treatment application can be used by EMT at the field of accident. The study materials include adult trauma patient older than 15 years, and sustained trauma within 48 hours before visiting Ewha University DongDaeMoon Hospital Emergency Deparment. The duration of study was from Apr. 1 1995 to Aug. 31 1995. the study was conducted by 5 certified EMT. The EMT's performance was evaluated by the attending Emergency Medicine physician. The result were as followings ; 1. Among the total 5532 ED visiting patients during the study period, 1267 were adult trauma patients who recieved treatment within 48 hours of injury. 2. Among 1222 out of 1267 patients have completed performed survey. 3. Male to female ratio was 2.6 : 1, age distribution was from 15 to 87 years old and mean age was 34.6 years old. 4. The MOI showed : MVA (33.1%), blunt trauma (29.9%), slip down (16.8%), penetrating injury(15.4%), and miscellaneous (5.7 %), burn (3.1%), falling down injury(2.9 %), bite injury(1.1%) in order. 5. There were 437 cases of survey completed by the EMT. For assessment of mental status of 3 different method : AVPU, 5 scale mental status and GCS, were correlated with EM physician with 99.1%, 98.6%, 97.7 %, respectively. 6. For 320 out of 437 cases of survey completed, 319 patients recieved treatment by the EMT within 30 minute and 1 patient between 30 to 60 minute of an ED arrival. 7. For those 437 cases of survey completed, 266 patient (60.9%) had adequate treatment and 54 patients (12.4%) had inadequate treatment. 67 patient (15.3%) did not received treatment but it was adequate inway, and 50 patients (11.9%) did not received treatment even though patient required treatment. In cases of adult trauma patients, EMT's mental status assessment was correlated with EM physician's assessment. But treatment done by EMT without the supervision of EM physician was adequate only in 76.2 %. Therefore, continuous education and assessment of treatment performed by EMT in needed to improve field treatment by EMT future.

Oxolamine Acetate(Pebron)의 鎭咳效果에 對한 臨床硏究

南松鉉,沈永秀,金建烈 최신의학사 1983 最新醫學 Vol.26 No.11

播種期 및 栽植密度가 단옥수수와 찰옥수수의 이삭形質에 미치는 影響

鄭丞根,許成秀 충북대학교 농업과학기술연구소 1992 農業科學硏究 Vol.10 No.1

This study was conducted to clarify the effects of planting time and planting density on ear characters in sweetcorn and waxycorn and, therefore, to provide informations necessary to improve quality and marketability of sweetcorn and waxycorn ears. Sweetcorn cultivar Goldencrossbantam 70 and a local waxycorn variety were planted on May 6 and June 26 at the planting densities of 4,000,6,50 and 9,000 plants per 10a. Plant and ear height were reduced as planting date was delayed and planting density was increased in both sweetcorn and waxyxorn. In sweetcorn, unhusked and husked ear weights were decreased about 60∼80g as planting was delayed and about 10∼20g as planting density was increased. In waxycorn, both planting date and planting density did not inf1uenced on ear weight. In sweetcorn, unhusked, husked and filled ear lengths wers reduced about 2∼4㎝ as planting date was delayed and about 1㎝ as planting denisty was increased. In waxyxorn, ear length was not affected by planting date or planting density. In both sweetcorn and waxycorn, distribution and variations of ear weight and length were smaller for husked ears than those for unhusked ears. Number of kernel rows per ear was decreased in June 26 planting, but planting density showed no influence in sweetcorn. However, both planting date and planting density did not sow any effect on row number in waxycorn.

카드뮴투여가 흰쥐 고환의 조직변화와 단백질변화에 미치는 영향

최송표,김수일,조근자,양은진,김선,박경란,이영호,김원식 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2

This study was done to investigate histochemical and protein changes in the rat testis I WAT and 3 WAT with 4 mg/kg of cadmium, IP, single injection. A control group and 2 experimental groups were studied. Testes were processed routinely for H&E stain and agarose gel electrophoresis. The results were as follows ; 1. In the histochemical studies, death of all the spermatogenic cells and Sertoli cells in the seminiferous tubules, and decreased ground substance, decreased fibroblasts and interstitial cells and increased inflammatory cells in the interstitial tissues were found in the cadmium treated groups, and the degree of necrotic changes was more severe in the 3 WAT group. 2. In the biochemical studies, two kinds of proteins, 25 kDa and 45 kDa, were disappeared and one kind of protein, 100 kDa, was decreased after Cd treatment. 25 kDa and 45 kDa proteins were suggested as actin which consist the spermatogenic cells, but what's the protein 100 kDa is unclear. According to the above results, it is considered that there would be irreversible changes in seminiferous convoluted tubules and also in the interstitial tissues after cadmium treatment, and detecting amino acid sequences of these proteins would help understanding the mechanism of necrosis in the testis tissue after cadmium administration.

Rat의 복강내에 투여한 5-fluorouracil-polyglycolic acid 제형이 장기에 미치는 영향에 관한 연구

강대영,송규상,최정목,노승무,정경수,오정연,김진향,양준묵,최선웅,이진호,조준식,민병무,김용백,김창식,박근성,김승영,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

For more effective intraperitoneal chemotherapy, the authers made 5-fluorouracil-polyglycolic acid composite disks(FU-PGA disks) with 5-fluorouracil and polyglycolic acid, a biodegradable polymer. We inserted the FU-PGA disk into the peritoneal cavites of Sprague-Dawley male rats, the control and three experimental groups; one FU-PGA disk insert group(300mg/kg), two FU-PGA disk insert group(600mg/kg), and three FU-PGA disk insert group(900mg/kg). The control group received a similar number of PGA disk inserts. A pharmacokinetic study was performed to measure the 5-fluorouracil concentration in the peritoneal fluid, blood, and tissues(liver, kidney and heart) at 24 hours, 72hours and 168 hours after insertion of the FU-PGA disk. Light and electron microscopic studies were done. The results were as follows: 1) The number of white blood cells and platelets decreased after FU-PGA insertion. The degree was proportional to the duration and amounts inserted. The change in the number of red blood cells varied slightly. 2) Light microscopically, slight changes were noted at 168 hours in the 3 disk insert group (900mg/kg). Mild fatty change and hepatocyte degeneration around the central veins of the liver were noted, with vacuolar degeneration in the proximal convoluted tubules of the kidney. 3) Electron microscopically,the liver showed focal increases of lipid droplets in the hepatocytes, and irregular nuclear membrane with focal nucleolar segregation of the fibrillar and granular elements. Also the double membranous structure of the hepatocytes and Kupffer cells was widened with bleb formation. The kidney showed wide separation of the nuclear double membrane in the proximal convoluted tubular cells and mesangial cells, with vacuolation and myelin figure formation in the mitochondria of the proximal convoluted tubular cells, at 72 hours and 168 hours in the 2 to 3 FU-PGA insert groups. The heart showed focal loss of cristae,vacuolation and myelin figure formation in the mitochondria of the 2 to 3 FU-PGA insert groups. In conclusion, despite the large amont of FU-PGA inserted, the histopathological changes in the liver, kidney and heart were slight, and consonant with the very low amount of 5-fluorouracil concentrations detected in the liver, kidney and heart. The above results suggest that the FU-PGA composite can serve as a new device for releasing drugs in a controlled manner and easily targeted to intraperitoneal organs. This device can improve the efficacy of intraperitoneal chemotherapy for gastric cancer.

미세혈관 협심증 환자의 임상상 및 지표에 관한 연구

박상호,온영근,김현정,이태훈,길효욱,김현건,박수진,송해정,한대희,방덕원,신원용,이내희,김성구,권영주 순천향의학연구소 2003 Journal of Soonchunhyang Medical Science Vol.9 No.1

Background : Microvascular angina or syndrom X is heterogenous and encompasses different pathogenetic entities. Several studies suggest that microvascular angina have good prognosis and occurs predominantly in postmenopausal women. Lipoprotein (a), total cholesterol, LDL-cholesterol, HDL-cholesterol, triglyceride, homocystein, CRP and fibrinogen are the independent risk factor of acute coronary syndrome and are the chief underlying cause of atherosclerosis. We investigated clinical characteristics and markers in patients with microvascular angina. Methods : We studies 23 patients diagnosed with microvascular angina and 16 control group with negative treadmill exercise test and no significant coronary angiogram. We investigated clinical characteristics in patients group and evaluated symptom during a follow-up period of 4.2± 2.5 month. Exercise time in treadmill exercise test was compared between patients and control group. We assessed the level of markers, such as lipoprotein (a), total cholesterol, LDL-cholesterol, HDL-cholesterol, triglyceride, homocystein, CRP and ESR in two groups. Results : There is no difference in age between two groups. Patients group had a tendency to increase in female, hypertension, DM, and smoking history, but there was no statistical significance difference. Exercise duration time was significantly decreased in patients with microvascular angina (p<0,05). Serum lipoprotein (a), total cholesterol, LDL-cholesterol, HDL-cholestrol, Triglyceride, ESR, Fibrinogen and Homocystein value were no significant difference between microvascular angina and control group. Only CRP was significantly high in patients with microvascular angina (p<0.05). Conclusion : There was no statistical significance difference in age, sex, hypertension, DM and smoking history between two groups but patients group had a tendency to increase the prevalence in hypertension, DM and smoking history, female. Also, Symptom improvement and disappearance in follow-up was presented in 11 patients of 19(57.9%). Exercise tolerance was worse in patients group than control group. CRP value was significantly higher in patients group than control group. There was no statistical significance difference in lipoprotein (a), total cholesterol, LDL-cholesterol, HDL-cholesterol, triglyceride, homocystein, ESR and Fibrinogen between two groups.