1.A Study on the Crops Pollution with Heady Metal.
Yong Tae YUM ; Eun Sang BAE ; Bae Joung YUN
Korean Journal of Preventive Medicine 1980;13(1):3-12
Certine heavy metals which may lead peoples to poisonous status are widely used in industry and their used have been increasing along with rapid industrialization of this country. Such an increasement of metal uses aggravates the status of environmental pollution affecting foodstuffs which are the most important life supporting factor of animal and human being. Concerning the safety measures to minimize food-borne transmission of such hazardous metals, surveillance is the backbone of them and probably more so with a potential problem such as intoxication. Theoretically, this surveillance should include the determination of levels of heavy metal toxicants in foods, the determination of food consumption patterns and typical total diet, and the estimation of total load the metal contaminant from all sources of exposure including air, water, and occupational sources. In recent year, actually, such estimates on the total daily intake of some heavy metals from foods have been made in several developed countries and a wide variation of date by season, locality, and research method was recognized. Also in this country, this kind of research data is vitally needed to make up for the serious shortage or lack of references to estimate the total amount of heavy metal intake of the people. In this study, a modification model for estimation of the total daily intake of cadmium copper, nickel, zinc, and lead through foods was applied and concentrations of the above metals in crops cultivated in this country were measured with atomic absorption spectrophotometer to get the following results. 1.Level of heavy metal concentration in crops. Generally, the levels of such metals in essential crops such as rice, cucumber, radish, chinese cabbage, apple, pear, grape, and orange are similar or lower than those in Japan and other developed countries. By the way, a striking result on cadmium concentration was increasement of its concentration in rice from 0-0.035ppm in 1970 to 0.11ppm in this study. However, the value is still far below the Japanese Permissible Level of 1.0ppm. 2. Estimation of total daily intake per from foods. A new model for estimation was devised utilizing levels of metal concentration in food, amount of food consumed, and other food factors. Based on the above method, the daily intake of cadmium was estimate to be 70.53 microgram/man/day in average which was as high as the Limit Value of ILO/WHO(up to 71.4 microgram/man/day). Also, 3.89mg of Zinc, 1.65mg of cuppor, 0.32mg of lead were given as the total daily intake per capita by this research. 3. Efficacy of washing or skinning to decrease the amount of metals in crops. After washing the crops sufficiently with commercial linear alkylate sulfonate, the concentration of heavy metals could bae reduced to 50-80% showing decreasement rate of 20-50%. Also, after skinning the fruits, decreasement rate of the heavy metal concentration showed 0-50%.
Absorption
;
Animals
;
Asian Continental Ancestry Group
;
Brassica
;
Cadmium
;
Citrus sinensis
;
Copper
;
Developed Countries
;
Diet
;
Environmental Pollution
;
Fruit
;
Humans
;
Japan
;
Metals
;
Metals, Heavy
;
Nickel
;
Pyrus
;
Raphanus
;
Seasons
;
Skin
;
Strikes, Employee
;
Vitis
;
Water
;
Zinc
2.Beta Dosimetry in Intraperitoneal Administration of 166Ho-chitosan Complex.
Kyung Bae PARK ; Sang Moo LIM ; Eun Hee KIM
Korean Journal of Nuclear Medicine 1998;32(1):99-108
Intraperitoneal adminstration of radioisotopes is suggested to treat the metastatic ovarian cancer in the pertioneal cavity. Administering beta-emitting radioisotopes into the pertioneal cavity allows the maximum energy delivery to the cancerous cells of the pertioneal wall surface while sparing the normal cells located in deep site of the peritoneal wall. In this study, dose estimates of the peritoneal wall are provided to be used for prescribing the amount of 166Ho-chitosan complex administered. The 166Ho-chitosan complex diffused in the peritoneal fluid may attach to the peritoneal wall surface. The attachment fraction of 166Ho-chitosan complex to the peritoneal wall surface is obtained by simulating the ascites with Fischer rats. Both volume source in the peritoneal fluid and the surface source over the peritoneal wall surface are counted for the contribution to the peritoneal wall dose. The Monte Carlo code EGS4 is used to simulate the energy transfer of the beta particles emitted from 166Ho. A plane geometrical model of semi-infinite volume describes the peritoneal cavity and peritoneal wall. A semi-infinite plane of 10 micrometer in thickness at every 1 mm of depth in the peritoneal wall is taken as the target in dose estimation. Greater han 98 percents of attachment fraction has been observed from the experiments with Fischer rats. Given 1.3 microcurie/cm2 and 2.4 microcurie/ml of uniform activity density, absorbed dose is 123 Gy, 8.59 Gy, 3.00 Gy, 1.03 Gy, and 327 Gy at 0 mm, 1 mm, 2 mm, 3 mm, and 4 mm in depth to the peritoneal wall, respectively.
Ascites
;
Ascitic Fluid
;
Beta Particles
;
Energy Transfer
;
Ovarian Neoplasms
;
Peritoneal Cavity
;
Radioisotopes
;
Rats, Inbred F344
3.Immunohistochemical Analysis of HLA-DR and Secretory Component Expression in Gastric Adenocarcinoma.
Ji Youn BAE ; Soo Sang SOHN ; Eun Sook CHANG
Korean Journal of Pathology 1996;30(4):293-300
Sixty one cases of gastric adenocarcinoma were studied immunohistochemically for expression of HLA-DR and secretory component(SC) in order to analyze the relationship between expression of these in gastric cancer cells and the adjacent mucosa. Immunostaining was detected within the cytoplasm and on the cell memgrane. The rate of HLA-DR and SC expressions in cancer cells were 59.0% and 49.2%, respectively, and 52.5%/52.5% and 31.2%/50.8% the mucosa in adjacent/remote from the site of to cancer. The SC expression in the adjacent mucosa was lower than that of the remote mucosa(p=0.027). The HLA-DR expression in the cancer cells in the intestinal type of gastric adenocarcinoma(73.9%) was higher than that of the diffuse type(14.3%) and it was statistically significant(p=0.02). The presence of an increased amount of lymphoid infiltration in the gastric mucosa was closely related to the expression of HLA-DR and SC. Decreased or absent expression of SC at the transitional mucosal cells was possibly a result of exposure to genotoxic agents due to the lack of protective function of SC-IgA. From these results, one can postulate that the expression of HLA-DR and SC may play an important role in atleration in microenvironment with lymphoid infiltration.
Adenocarcinoma
;
Stomach Neoplasms
4.The Factors Influencing the Percentage of Free Serum Prostate Specific Antigen Levels in Men without Clinically Detectable Prostate Cance.
Dae Young KIM ; Cheol KWAK ; Seung Bae LEE ; Eun Chan PARK ; Hyeon JEONG ; Sang Eun LEE
Korean Journal of Urology 2000;41(6):718-724
No abstract available.
Humans
;
Male
;
Prostate*
;
Prostate-Specific Antigen*
5.The Factors Influencing the Percentage of Free Serum Prostate Specific Antigen Levels in Men without Clinically Detectable Prostate Cance.
Dae Young KIM ; Cheol KWAK ; Seung Bae LEE ; Eun Chan PARK ; Hyeon JEONG ; Sang Eun LEE
Korean Journal of Urology 2000;41(6):718-724
No abstract available.
Humans
;
Male
;
Prostate*
;
Prostate-Specific Antigen*
6.Flecainide Improve Sepsis Induced Acute Lung Injury by Controlling Inflammatory Response.
Jia SONG ; Young Joong SUH ; Hyun Jung LEE ; Eun A JANG ; Hong Beom BAE ; Sang Hyun KWAK
Korean Journal of Critical Care Medicine 2016;31(3):194-201
BACKGROUND: Flecainide is an antiarrhythmic agent that is used primarily in the treatment of cardiac arrhythmias. Some evidences also suggest that flecainide can participate in alveolar fluid clearance and inflammatory responses. This experiment was aimed to evaluate the effects of flecainide on sepsis induced acute lung injury in a rat model. METHODS: Rats were treated with subcutaneous infusion of saline or flecainide (0.1 or 0.2 mg/kg/hr) by a mini-osmotic pump. Subcutaneous infusion was started 3 hours before and continued until 8 hours after intraperitoneal injection of saline or endotoxin. Animals were sacrificed for analyses of severity of acute lung injury with wet to dry (W/D) ratio and lung injury score (LIS) in lung and inflammatory responses with level of leukocyte, polymorphonuclear neutrophils (PMNs) and inteleukin-8 (IL-8) in bronchoalveolar lavages fluid (BALF). RESULTS: Flecainide markedly improved dose dependently sepsis induced acute lung injury as analysed by W/D ratio (from 2.24 ± 0.11 to 1.76 ± 0.09, p < 0.05) and LIS (from 3 to 1, p < 0.05), and inflammatory response as determined by leukocyte (from 443 ± 127 to 229 ± 95, p < 0.05), PMNs (from 41.43 ± 17.63 to 2.43 ± 2.61, p < 0.05) and IL-8 (from 95.00 ± 15.28 to 40.00 ± 10.21, p < 0.05) in BALF. CONCLUSIONS: Flecanide improve sepsis induced acute lung injury in rats by controlling inflammatory responses.
Acute Lung Injury*
;
Animals
;
Arrhythmias, Cardiac
;
Bronchoalveolar Lavage
;
Flecainide*
;
Infusions, Subcutaneous
;
Injections, Intraperitoneal
;
Interleukin-8
;
Leukocytes
;
Lung
;
Lung Injury
;
Models, Animal
;
Neutrophils
;
Rats
;
Sepsis*
7.Diagnosis of psychiatric disorders of the eldery.
Journal of the Korean Medical Association 2010;53(11):964-971
Korea is rapidly aging society and psychiatric disorders of the elderly increasing Korea is rapidly becoming an aging society and psychiatric disorders of the elderly are increasing significantly in importance. Interviewing the elderly requires special skills because of their physical weakness and cognitive impairments such as difficulty concentrating. There are various diagnostic tools for them, for more accurate diagnosis. Representative scales include the Mini-Mental Status Examination for dementia, the Geriatric Depression Scale for depression, and the Confusional Assessment Method for delirium. Differential diagnosis of psychiatric disorders from cerebral and physical disorders is important.
Aged
;
Aging
;
Delirium
;
Dementia
;
Depression
;
Diagnosis, Differential
;
Geriatric Psychiatry
;
Humans
;
Korea
;
Weights and Measures
8.Invasive carcinoma after a simple hysterectomy for microinvasive carcinoma of uterine cervix: a case report.
Dae Jin KANG ; Kee Eun LIM ; Jung Bae YOO ; Hyung MOON ; Doo Sang KIM
Korean Journal of Obstetrics and Gynecology 1993;36(2):264-267
No abstract available.
Cervix Uteri*
;
Female
;
Hysterectomy*
9.Typical and A typical Brown's Syndrome.
Journal of the Korean Ophthalmological Society 1987;28(6):1357-1363
The superior oblique tendon sheath syndrome was first described by Brown(1950). The essential feature is a limitation of elevation in adduction caused by a short or inadequately mobile anterior segment of the superior oblique tendon and its sheath, which restricted passive elevation in the fully adducted position. Brown has subdivided the entity into true and simulated Brown's syndrome. True Brown's syndrome may be typical or atypical. Typically, there is no significant co-existing limitation of the homolateral superior rectus muscle; atypically there is a significant limitation. Numerous surgical techniques have been advocated to treat Brown's syndrome. Of these, a tenectomy of the homolateral superior oblique has emerged as the most effective method. The authors experienced two cases of Brown's syndrome, one is typical in 5 year old male patient, the other is atypical in 27 year old male patient. Excellent result was obtained in typical Brown's syndrome who underwent a tenectomy of the superior oblique, including the sheath.
Adult
;
Child, Preschool
;
Humans
;
Male
;
Tendons
10.A Case Report of an Acardic Acephalic Twin.
Ju Sup CHUNG ; Sang Kook KIM ; Hwan Woo LEE ; Eun Ju KIM ; Koock Howan BAE
Korean Journal of Obstetrics and Gynecology 1997;40(1):203-208
Acardic twining is a rare congenital anomaly, usually in monozygotic twins. This condition is characterized by the absence or rudimentary development of fetal hear, and associated with various anomaly(especially with anecephalus). The acardiac malformations are uniformly fatal in the affected twin, and mortality in the co-twin is as high as 55%. We recently experienced a case of acardius acephalus associated with a normal term male infant, so present with a brief review of the literature.
Humans
;
Infant
;
Male
;
Mortality
;
Twins*
;
Twins, Monozygotic