1.Expression of E-cadherin in Experimental Bladder Carcinogenesis Induced by N-butyl-n-4-hydroxybutyl Nitrosamine.
Yun Chan CHOI ; Eun Sik LEE ; Won Hee PARK
Korean Journal of Urology 2000;41(7):838-843
No abstract available.
Cadherins*
;
Carcinogenesis*
;
Urinary Bladder*
2.Relationship between Blood Pressure and Impairment of Cognitive Function In Some Rural Residents Aged 60-64.
Choong Won LEE ; Moo Sik LEE ; Jong Chan CHUN
Korean Journal of Preventive Medicine 2000;33(2):208-214
OBJECTIVES: Face-to-face interviews were conducted to investigate the relationship between blood pressure and the impairment of cognitive function in rural elderly (N=932) aged 60-64 in Dalsung County, April to September in 1996 METHODS: Impairment of cognitive function was defined as a score of less than 23 by the Korean version of the Mini-Mental State Examination (MMSEK). Blood pressure was measured once in each subject using a portable automatic sphygmomanometer. RESULTS: By univariate logistic regression on males, no category of systolic blood pressure bore statistical significance. Groups with diastolic blood pressures of, less than 80 mmHg, 90-94 mmHg, and more than 95mmHg had odds ratios of more than one compared with the reference group (80-89 mmHg). This was most significant in the group with blood pressures lower than 80 mmHg, which had a statistically significant odds ratio of 1.68 (95 % confidence interval Cl; 1.02-2.75). No category of blood pressure was statistically significant in females. Multivariate logistic regression for males, with adjustment for age, educational attainment, smoking, alcoholic drinking, body mass index, atherosclerotic disease, and antihypertensive medication use, did not alter the odds ratios significantly in terms of systolic blood pressure. However, the group with diastolic blood pressure of less than 80 mmHg had an increased odds ratio of 2.01 (95 % Cl; 1.15-3.52) compared with the reference group. In females, systolic blood pressure did not alter the odds ratio, but the group with a diastolic blood pressure of less than 80 mmHg had a statistically significant odds ratio of 0.57 (95% Cl; 0.37-0.89). CONCLUSIONS: These results suggest that the relationship between blood pressure and cognitive function status is stronger diastolic than systolic blood pressure and that there is a complex relationship between blood pressure and cognitive function by sex.
Aged
;
Alcoholics
;
Blood Pressure*
;
Body Mass Index
;
Drinking
;
Female
;
Humans
;
Logistic Models
;
Male
;
Odds Ratio
;
Smoke
;
Smoking
;
Sphygmomanometers
3.Immunohistochemical Demonstration of the Skin Basement Membrane Antigens by the AMex ( Acetone , Methyl Benzoate and Xylene ) Method.
Won HUR ; Joon CHUNG ; Sung Ku AHN ; Dong Sik BANG ; Soo Chan KIM
Korean Journal of Dermatology 1994;32(1):13-23
BACKGROUND: Preservation of antigen determinants while retaining morphological detail is prerequisite for high quality immunohistochemistry. Conventional formalin fixation and paraffin embedding procedures are useful in preserving tissue architecture and cytologic detail. However, they destroy the antigenicity of many proteins is tissue samples. On the other hand, fresh frozen section preserve the antigenicity of most proteins, but vield poor morphological preservation. OBJECTIVE: The purpose of this study is to evaluate the AMeX method as to the ability to preserve both antigenicity and morphologic details of the skin basement membrane zone so that precise localization of antigens can be attained in immunohistochemistry. METHODS: Tissues were fixed in acetone at -20degrees C over night, then cleared in methyl benzoate and xylene, consecutively, and embedded in ordinary paraffin at 58-60degrees C. Sections made from this paraffinembedded tissue were stained with hematoxylin and eosin for a morphologic study and immunolabelled with antibodies against major basement membrane antigens to evaluate antigenic preservation. The staining intensity and preservation of the morphology by the AMeX method were compared with conventional formalin processed tissues and frozen tissues. RESULTS: Morphological preservation of the AMeX method-processed sections was good throughout the epidermis, basement membrane, and dermis, and as good as that of routinely formalin-fixed paraffin-embedded sections. Frozen sections usually revealed revealed various degrees of damage by ice crystal formation throughout the epidermis to the dermis. The AMeX method-processed sections showed better or same antigenic preservation comparing the frozen sections when the sections were immunolabelled with specific monoclonal antibodies. But, when the sections were immunolabelled with patient's sera, the AMex method showed less antigenic preservation than the frozed sections. The anti-type IV collagen monoclonal antibody exhibited immunoreactivity only conventional formalin-fixed paraffin-embedded skin sections, but the intensity of the staining was weaker than the AMeX processed sections and the frozen sections. CONCLUSION: The AMeX method can be utilized for the demonstration of skin basement membrane antigens and is superior to the fresh-frozen method in that the histologic figures are more distinct and antigencity can be preserved for a long time.
Acetone*
;
Antibodies
;
Antibodies, Monoclonal
;
Basement Membrane*
;
Benzoates*
;
Collagen
;
Dermis
;
Eosine Yellowish-(YS)
;
Epidermis
;
Formaldehyde
;
Frozen Sections
;
Hand
;
Hematoxylin
;
Ice
;
Immunohistochemistry
;
Paraffin
;
Paraffin Embedding
;
Skin*
;
Xylenes*
4.Nd-YAG laser and CO2 laser application in general surgery.
Bong Hwa LEE ; Seung Won JUNG ; Kyung Sik KIM ; Ze Hong WON ; Heung Kil PARK ; Chan Young LEE
Journal of the Korean Surgical Society 1991;40(1):1-12
No abstract available.
Lasers, Gas*
;
Lasers, Solid-State*
5.4 Cases of Spontaneous Coronary Dissection in Ischemic Heart Disease.
Won Sik LEE ; Byung Su YOO ; Seung Chan AHN ; Byoung Ki SEO ; Junghan YOON ; Keum Soo PARK ; Kyung Hoon CHOE
Korean Circulation Journal 1995;25(6):1241-1246
Spontaneous coronary artery dissection is a rarely identified entity whose exact incidence, etiology, pathogenesis, medium-term evolution and optimal treatment have not yet been firmly estabilished. The cause of spontaneous disection remains unclear but theories of etiology include a medial eosinophilic angiitis, pregnancy induced degeneration of collagen and rupture of the vasovasoum. Most paients die suddenly, but a clinical spectrum is seen including and unstable angina, myocardial infarction and cardiogenic shock. We experienced 4 cases with spontaneous coronary artery dissection found angiographically which caused myocardial infarction and unstable angina. Our patients were treated medically.
Angina, Unstable
;
Collagen
;
Coronary Vessels
;
Eosinophils
;
Humans
;
Incidence
;
Myocardial Infarction
;
Myocardial Ischemia*
;
Pregnancy
;
Rupture
;
Shock, Cardiogenic
;
Vasculitis
6.correlation between the concentrations of follicular fluid epidermal growth factor and estradiol in IVF program.
Hyeong Soon KIM ; Sung Sik HAN ; Kyung Hwan CHANG ; In Cheol CHOI ; Won Il PARK ; Dong Jae CHO ; Chan Ho SONG
Korean Journal of Fertility and Sterility 1993;20(3):209-216
No abstract available.
Epidermal Growth Factor*
;
Estradiol*
;
Female
;
Follicular Fluid*
7.Conjoined twins: a report of four cases.
Sei Kwang KIM ; Woo Sik LEE ; Jae Sung CHO ; Yong Won PARK ; Young Ho YANG ; Chan Ho SONG
Korean Journal of Obstetrics and Gynecology 1992;35(7):1077-1081
No abstract available.
Twins, Conjoined*
8.A case of cardiac metastasis of hepatocelluar carcinoma through inferior vena cava.
Chan Wook PARK ; Jin Ki BAIK ; Jong Ho WON ; Dae Sik HONG ; Hee Sook PARK ; Hye Kyung LEE
Journal of the Korean Cancer Association 1993;25(3):445-449
No abstract available.
Neoplasm Metastasis*
;
Vena Cava, Inferior*
9.The Clinical Study of the Effective Treatment of Blepharospasm and Hemifacial Spasm with Botulinum toxin A (Oculinum(R))(II).
Jae Chan KIM ; Nae Sun HONG ; Won Sik KIM ; Bon Sool KOO
Journal of the Korean Ophthalmological Society 1992;33(1):1-10
Two hundred sixty two patients of the essential blepharospasm and hemifacial spasm were treated with Botulinum toxin A (Oculinum(R)). A total of 620 treatments was given injections over a 3-year period. A reduction in spasm intensity was noted in most patients, and the mean response time of the essential blepharospasm and hemifacial spasm were 144.2 days and 172.3 days, respectively, There was no clear relationship between age, sex, toxin dose or preinjected spasm intensity, the amount of spasm reduction, and the mean response time. The mean respone time had no difference from the first through the fourth treatments; but in hemifacial spasm, the mean response time of the second treatment was longer than that of first, third and fourth treatments. The lagophthalmos and superficial punctate keratitis were the most frequent complications. As a result of the injection to avoid the center of the upper and lower eyelids, the frequency of complications could be minimized. There was no clear difference in the beneficial effect and the mcidence of complication (lagophthalmos) between toxin stored in the vaccum and in the non-vaccum state. Patients who were treated with lidocaine mixed toxin had a less effective result than those with saline-mixed toxin.
Blepharospasm*
;
Botulinum Toxins*
;
Eyelids
;
Hemifacial Spasm*
;
Humans
;
Keratitis
;
Lidocaine
;
Reaction Time
;
Spasm
10.An Assessment of Statistical Methods in the Journal of Korean Child Neurology Society, 1993-2003.
Joon Sik KIM ; Tae Chan KWON ; Choong Won LEE
Journal of the Korean Child Neurology Society 2003;11(2):335-342
PURPOSE: A clinical trial cannot be adequately interpreted without information about the methods used in the design of the study and the analysis of the results. We would like to evaluate trends in statistical methods and describe the frequency with which various statistical techniques are reported in the Journal of Korean Child Neurology Society. METHODS: We reviewed 288 original articles published in the Journal of Korean Child Neurology Society from 1993 to 2003 to assess the statistical methods. RESULTS: The number of cross-sectional study was 232(80.6%) articles and that of animal study was 45(15.6%) articles but Cohort study was only eleven(3.8%) articles. One hundred twenty seven(44.1%) articles used no statistical methods or descriptive statistics only, frequency of which decreased yearly and 84 articles(29.2%) used T-test, frequency of which increased yearly. Seventy two(25%) articles used contigency tables and twenty three(8.0%) articles used ANOVA. Orphan P where no statistical methods had been specified and only the P value given was presented in 19 articles(6.6%) which decreased yearly. CONCLUSION: These results suggest that medical articles published in the Journal of Korean Child Neurology Society, 1993-2003, were short of their expected quality and the validity of statistical methods used appears to be seriously compromised in this period and has much to be done to improved the current situation. It is concluded that a basic training in biostatistical methods, more consultation of medical investigators with statistician or other experts, careful review by someone in biostatistics or research design before accepting a manuscript are needed.
Animals
;
Biostatistics
;
Child*
;
Child, Orphaned
;
Cohort Studies
;
Cross-Sectional Studies
;
Humans
;
Neurology*
;
Research Design
;
Research Personnel