1.Telomerase Activity of Endometrium Related to the Effects of the Sex Steroid Hormone and Endometrial Cancer.
Young Ae CHOO ; Chi Heum CHO ; Soon Do CHA ; Seong Il SUH ; Tae Sung LEE
Korean Journal of Gynecologic Oncology and Colposcopy 1999;10(1):24-31
During the reproductive period, human endometrium undergoes a pattern of cyclic change. Human endometrium undergoes a complex pattern of proliferation, secretory activity, and menstruation over an approximately 28 days period. Proliferative activity is highest during late proliferative phase under influence of estrogen, and minimal activity in the late secretory and menstrual phase. To study a possible change of telomerase activity during menstrual cycle, telomerase activities in normal and hormone treated endometrium were tested using telomerase repeat amplification protocol(TRAP) assay. Telomerase activities were detected in 9 of 10 proliferative endometrium(90%), and maximal activity was shown in late proliferative phase. Only 3 of 10 secretory endometrium(30%) revealed weak activity. However telomerase activity was not detected in menstrual phase endometrium(N 2) and senile endometrium(N=3). Four of tamoxifen treated endometrium(N 4) and 1 of provera treated endometrium(N 3) Levels of telomerase activity of treated endometrium(N 4) and late proliferative endometrium(N 6) were as high as them of detected in endometrial cancer and hyperplasia. Above findings reveal that telomerase activity of endometrium is changed according to menstrual cycle, And the level of telomerase activity is related to proliferative activity of endometrium that is dependent on the status of female sex steroid hormone and tamoxifen treatment.
Endometrial Neoplasms*
;
Endometrium*
;
Estrogens
;
Female
;
Humans
;
Hyperplasia
;
Medroxyprogesterone Acetate
;
Menstrual Cycle
;
Menstruation
;
Reproduction
;
Tamoxifen
;
Telomerase*
2.Effect of the Types of Operation or Agieng on Blood Glucose Changes during Halothane Anesthesia.
Sung Woo CHOO ; Geu Jeung YANG ; Chan Jong CHUNG ; Soo Il LEE
Korean Journal of Anesthesiology 1992;25(1):96-102
The goal of this study was of what change in blood glucose the operation area and ageing made during halothane anesthesia. Sixty patients who were chosen randomly were divided into 4 operation groups according to operation site, that is, nil, surface, abdomen and thorax. Again, each operation group was fractionated into the young(below 40 year old), the middle (from 4l to 60) and the old(above 61). The blood sampling was done at preinduction for control value, 15 min, 30 min, 45 min and 60 min after induction for nil, and 15 min, 30 min, 45 min and 60 min after incision for operation-received groups. The results were as follows; 1) In nil, the young and the middle increased, but the old decreased in blood glucose. 2) In operation-received groups, there was no significance in blood glucose change among 3 age fractions. 3) The blood glucose change was larger in operation-received groups than in nil, more prominent in abdomen and thorax groups than in surface group. 4) The blood glucose of preinduction had no significance among 4 operation groups.
Abdomen
;
Anesthesia*
;
Blood Glucose*
;
Halothane*
;
Humans
;
Thorax
3.Two Cases of Angiodysplasia in Small Bowel : Intra - operative Endoscopic Transillumination Technique.
Jong Seo LEE ; Chang Ryeol CHA ; Won Il CHO ; In Sung MOON ; Sang Yong CHOO ; In Sik CHUNG ; Kyo Young LEE
Korean Journal of Gastrointestinal Endoscopy 1993;13(4):707-711
Angiodysplasia of small bowel is uncommon and frequently undiagnosed and presents a taxing surgical problem. It is usually diagnosed for unexplained gastrointestinal bleeding. For the surgeon, the main technical problem is that the lesion is impalpable, and invisible to the naked eye, so it usually cannot be identified unless bleeds actively at the time of surgery. Arteriography gives a little information about wax and wane pattern of bleeding in the lesion. Endoscopy is often unfruitful because the majority of lesions are submucosal and rarely exceed a few millimeters in diameter. Transillumination of the intestinal wall from inside of the lumen to the outside in a dark room can define the precise vascular anatomy of the wall. The delicate lesion of the angiodysplasia can be identified by this transillumination method. We described a simple intraoperstive endoscopic translllumination technique used successfully to identify an angiodysplasia in the small bovwel prior to the bowel resecion. This report summarized our experience and review of literature.
Angiodysplasia*
;
Angiography
;
Endoscopy
;
Hemorrhage
;
Taxes
;
Transillumination*
4.Expression of c-fms in each stage of chronic myelogenous leukemia.
Chong Won PARK ; Il Ho YANG ; Chong Wook LEE ; Chi Wha HAN ; Woo Sung MIN ; Chun Choo KIM ; Won Il KIM ; Dong Jip KIM
Journal of the Korean Cancer Association 1991;23(3):529-535
No abstract available.
Leukemia, Myelogenous, Chronic, BCR-ABL Positive*
5.A Study on Public Nuisance in Seoul, Pusan and Daegu Cities: Part 1. Survey on Air Pollution and Noise Level.
Chul Hwan CHA ; Young Soo SHIN ; Young Il LEE ; Kwang Soo CHO ; Chong Yoo CHOO ; Kyo Sung KIM ; Dug Il CHOI
Korean Journal of Preventive Medicine 1971;4(1):41-64
During the period from July 1st to the end of November 1970, a survey on air pollution and noise level was made in Seoul, Pusan and Taegu, the three largest cities in Korea. Each city was divided into 4-6 areas : the industrial area, the semi-industrial area, the commercial area, the residential area, the park area and the downtown area. Thirty eight sites were selected from each area. A. Method of Measurement : Dustfall was measured by the Deposit Gauge Method, sulfur oxides by PbO2 cylinder method, suspended particles by the Digital Dust Indicator, Sulfur dioxide (SO2) and Carbon Monoxide (CO) by the MSA & Kitakawa Detector and the noise levels by Rion Sound Survey meter. B. Results: 1. The mean value of dustfall in 3 cities was 30.42 ton/km2/month, ranging from 8.69 to 95.44. 2. The mean values of dustfall by city were 33.17 ton/km2/month in Seoul, 32.11 in Pusan and 25.97 in Taegu. 3. The mean values of dustfall showed a trend of decreasing order of semi-industrial area, downtown area, industrial area, commercial area, residential area, and park area. 4. The mean value of dustfall in Seoul by area were 52.32 ton/km2/month in downtown, 50.54 in semi-industrial area, 40.37 in industrial area, 24,19 in commercial area, 16.25 in park area and 15.39 in residential area in order of concentration. 5. The mean values of dustfall in Pusan by area were 48.27 ton/km2/month in semi-industrial area, 36.68 in industrial area 25.31 in commercial area, and 18.19 in residential area. 6. The mean values of dustfall in Taegu by area were 36.46 ton/km2/month in downtown area, 33.52 in industrial area, 20.37 in commercial area and 13.55 in residential area. 7. The mean values of sulfur oxides in 3 cities were 1.52mg SO3/day/100cm2 PbO2, ranging from 0.32 to 4.72. 8. The mean values of sulfur oxides by city were 1.89mg SO3/day/100cm2 PbO2, in Pusan, 1.64 in Seoul and 1.21 in Taegu. 9. The mean values of sulfur oxides by area in 3 cities were 2.16mg SO3/day/100cm2 PbO2 in industrial area, 1.69 in semi-industrial area, 1.50 in commercial area, 1.48 in downtown area, 1.32 in residential area and 0.94 in the park area, respectively. 10. The monthly mean values of sulfur oxides contents showed a steady increase from July reaching a park in November. 11. The mean values of suspended particles was 2.89mg/m3, ranging from 1.15 to 5.27. 12. The mean values of suspended particles by sity were 3.14mg/m3 in Seoul, 2.79 in Taegu and 2.25 in Pusan. 13. The mean values of noise level in 3 cities was 71.3 phon, ranging from 49 to 99 phon. 14. The mean values of noise level by city were 73 phon in Seoul, 72 in Pusan and 69 in Taegu in that order. 15. The mean values of noise level by area in 3 cities showed a decrease in the order of the downtown area, commercial area, industrial area and semi-industrial area, park area and residental area. 16. The mean values of noise level by area in 3 cities indicated that the highest level was detected in the downtown area in Seoul and Taegu and in the industrial area in Pusan. 17. The daily average concentration o sulfur dioxides (SO2) in 3 cities was 0.081 ppm, ranging from 0.004 to 0.196. 18. The daily average concentration of sulfur dioxides by city were 0.092 ppm in Seoul, 0.089 in Pusan and 0.062 in Taegu in that order. 19. the weekly average concentration of carbon monoxides (CO) was 27.59 ppm. 20. The daily average concentration of carbon monoxides by city were 33.37 ppm. in Seoul, 25.76 in Pusan and 23.65 in Taegu in that order. 21. The concentration of SO2 and CO reaches a peak from 6 p.m. to 8 p.m. 22. About 3 times probably the daily average concentration of CO could be detected in the downtown area probably due to heavy traffic emission in comparison with that in the industrial area. 23. As for daily variation of the concentration of SO2 and CO it was found that the concentration maintains relatively higher value during weekdays in the industrial area and on the first part of the week in the downtown area.
Air Pollution*
;
Busan*
;
Carbon
;
Carbon Monoxide
;
Daegu*
;
Dust
;
Korea
;
Noise*
;
Seoul*
;
Sulfur
;
Sulfur Dioxide
;
Sulfur Oxides
6.Psychiatric Characteristics According to Tinnitus Severity.
Jae Hong KIM ; Jung Ho KIM ; Sung Il CHO ; Sang Hag PARK ; Sang Hoon KIM ; Il Han CHOO ; Seung Gon KIM
Journal of the Korean Society of Biological Psychiatry 2015;22(1):7-13
OBJECTIVES: The purpose of this study was to examine the psychiatric characteristics of outpatients with tinnitus. METHODS: A total of 88 subjects were included in this study. According to Tinnitus Handicap Inventory (THI) scores, the subjects were classified into two group ; a mild tinnitus symptoms (mild-tinnitus) group and a severe tinnitus symptoms (severe-tinnitus) group. A questionnaire was used for an assessment of demographic characteristics, and the THI, the Visual Analogue Scale (VAS) about tinnitus, the Beck Depression Inventory (BDI), and the Beck Anxiety Inventory (BAI) are applied for evaluation of other clinical psychiatric characteristics. RESULTS: Higher THI scores were positively correlated with tinnitus course, the number of accompanying symptoms, and the VAS. BDI total scores, BDI factors, and BAI total scores were significantly higher in the severe-tinnitus group than in the mild-tinnitus group. Also suicidal ideation, interpersonal problems, sleep problems, occupational impairment, and fatigue were significantly higher in the severe-tinnitus group than in the mild-tinnitus group. CONCLUSIONS: Tinnitus is a common disorder of hearing which is associated frequently with psychiatric problems. This study suggests that psychiatric interventions should be taken into consideration in the treatment of patients suffering from tinnitus.
Anxiety
;
Depression
;
Fatigue
;
Hearing
;
Humans
;
Outpatients
;
Suicidal Ideation
;
Tinnitus*
7.The Effect of Subsegmental Transcatheter Arterial Chemoembolization in Hepatocellular Carcinoma: PathologicCorrelation.
Yong Seon PYEUN ; Young Soo DO ; Sung Wook CHOO ; Hong Suk PARK ; Won Jae LEE ; Kwang Cheol KOH ; Seung Woon PAIK ; Jae Won JOH ; Yong Il KIM ; In Wook CHOO
Journal of the Korean Radiological Society 1999;40(3):481-486
PURPOSE: To assess the effectiveness of subsegmental transcatheter arterial chemoembolization(TAE) forhepatocellular carcinomas(HCCs) on the basis of tumor necrosis rate. MATERIAL AND METHODS: Between May 1996 andMarch 1998, ten patients with single HCC after subsegmental TAE underwent surgical resection. Subsegmental TAE wasperformed by injecting a mixture of lipiodol and adriamycin followed by gelatin sponge particles into the distalbranches of the subsegmental arteries. Tumor size and the extent of necrosis were analyzed in ten resectedlesions, and in all patients, complications after subsegmental TAE were assessed. RESULTS: The size of resectedtumors ranged from 1 to 5,5cm. On histological examination, complete necrosis was seen in 6 to 10 resected lesionsand 95% necrosis in three. In the remaining lesion, 85% necrosis had occured. Complete necrosis was noted in 4 of6 small HCCs(less than 3cm in diameter), while in the remaining two the extent of necrosis was 95%. Nocomplications were observed. CONCLUSION: For the treatment of HCC, subsegmental TAE is safe and effective.Curative therapy must, however, involve follow-up and repeated TAE.
Arteries
;
Carcinoma, Hepatocellular*
;
Doxorubicin
;
Ethiodized Oil
;
Follow-Up Studies
;
Gelatin
;
Humans
;
Liver Neoplasms
;
Necrosis
;
Porifera
8.Telomere Length and Telomerase Activation in Carcinoma of the Cervix related to Human papilloma Virus(HPV) Infection.
Jong Ha PARK ; Tae Sung LEE ; Soon Do CHA ; Chi Heum CHO ; Young Ae CHOO ; Seong Il SUH ; Won Ki BAEK ; Min Ho SUH
Korean Journal of Gynecologic Oncology and Colposcopy 1997;8(1):65-74
E6 and E7 proteins produced by oncogenic HPV bind to the protein products of cellular tumor suppressor genes p53 and Rb, respectively. This mechanism has been suggested to contribute to the oncogenesis of HPV-infected carcinoma. The cells which are blocked the function of p53 and pub protein continue to divide by bypassing Ml stage known as antiproliferative mechanism but telomeres, the genetic elements at the ends of chromosomes, continue to shorten until the telomeres are so short that further replication is prevented(M2 stage). But telomeres can be maintained if telomerase is derepressed, giving rise to a immortal cell. The present study has been investigated the presence of HPV, telomere length and telomerase activation in cervical carcinomas. HPV DNA were detected by polymerase chain reaction in 17 of 19 precancerous lesions and cervical carcinoma specimens; HPV16 was detected in 12 cases, HPV18 in one case, HPV33 in two cases, and HPV58 in two cases. Overall, the prevalence of HPV was 89.5%. To study the difference of telomere length in cervical carcinomas and each normal counterpart, DNAs were digested with Hinf III and Rsa I to liberate the terminal restriction fragments(TRF). TRFs were resolved on agarose gels and detected by hybridization to the telomeric probe. This result indicated that there were no significant difference of TRF length in samples tested except two cases. TRF length of one carcinoma specimen was found to be significantly increased as compared with normal counterpart, but the other was found to be significantly decreased. Telomerase activity was detected in 4 of dysplasia specimens(5 cases), all of carcinoma in situ(CIS), and 6 of 8 invasive carcinoma. Overall, telomerase activity was detected in 84%. The degree of telomerase activity was high in 2 of dysplasia, 3 of CIS, and 3 of invasive carcinoma. And then there was no apparent association between HPV types and levels of telomerase activity. However, telomerase activity was depressed in invasive carcinoma as compared to dysplasia and CIS. These results suggest that HPV may be a possible causative agent in cervical carcinoma. In addition, telomerase activation may be necessary for the immortalization of cells and the progression of malignancy in cervical carcinoma.
Carcinogenesis
;
Cervix Uteri*
;
DNA
;
Female
;
Gels
;
Genes, Tumor Suppressor
;
Humans*
;
Papilloma*
;
Polymerase Chain Reaction
;
Prevalence
;
Sepharose
;
Telomerase*
;
Telomere*
9.The Effect of Electroconvulsive Shock on Chloramphenicol-Induced Insomnia in Freely-Moving Rats.
Il Han CHOO ; Jeong Soo KIM ; Seung Chul HONG ; Jin Hee HAN ; Sung Pil LEE
Journal of Korean Neuropsychiatric Association 1999;38(5):1170-1177
OBJECTIVES: Muramyl peptide derived from bacterial cell wall has been identified as one of several endogenous sleep-promoting factors. Several studies have shown that the administration of antibiotics decreased sleep amount as well as bacterial colony numbers in rats. Electroconvulsive shock (ECS)has been widely used in the treatment of many psychiatric disorders, including depression, bipolar disorder, and some cases of schizophrenia. However exact mechanism of ECS on the normal or psychiatric condition is not well understood so far. Previous studies indicated that ECS has diverse effects on sleep parameters both in the human and animal subjects. However, there was no report to examine the relationship between effects of ECS and sleep in the antibiotic imposed animal subjects. Therefore the author studied the effects of ECS on chloramphenicol-induced insomnia in rats. METHODS: Twelve Sprague-Dawley strain rats were divided into control (N=6)and experimental group (N=6) The sleep-wake activity was recorded continuously for consecutive three days(baseline, day 1 and day 2) On day 1, both groups were intraperitoneally injected with chloramphenicol 150mg/kg. On day 2, the control group was intraperitoneally injected with chloramphenicol 150mg/kg only, whereas experimental group received ECS an hour after they were injected with chloramphenicol 150mg/kg. RESULTS: 1)Chloramphenicol administration decreased light period slow wave sleep (SWS) (t=4.944, p=0.000) and paradoxical sleep (PS) (t=3.887, p=0.003) as well as total SWS(t=2.98, p=0.012)and total PS (t=4.391, p=0.001) 2)ECS increased dark period SWS(t=-3.863, p=0.003)and dark period PS (t=-2.458, p=0.034)as well as total dark period sleep (t=-4.302, p=0.002) CONCLUSION: These results suggest that ECS may be effective to reverse chloramphenicolinduced insomnia in rats. Furthermore, chloramphenicol-induced insomnia in rats could be a useful animal model for the future sleep research.
Animals
;
Anti-Bacterial Agents
;
Bipolar Disorder
;
Cell Wall
;
Chloramphenicol
;
Electroshock*
;
Humans
;
Models, Animal
;
Rats*
;
Rats, Sprague-Dawley
;
Schizophrenia
;
Sleep Initiation and Maintenance Disorders*
;
Sleep, REM
10.A Study on Public Nuisance in Han River and Nackdong River: Part II. Survey on Water Pollution.
Chul Hwan CHA ; Young Soon SHIN ; Soon Young PARK ; Kwang Soo CHO ; Chong Yoo CHOO ; Kyo Sung KIM ; Dug Il CHOI
Korean Journal of Preventive Medicine 1971;4(1):65-76
In view of ever rising water pollution problems of river in the vicinity of large urban communities, the author has made an investigation on the pollution of water sampled from Han River (Seoul area) and Nakdong River (Daegu city area) during the period from july to December, 1970. The water samples were taken twice a month during the study period of 6 months from 7 points (locations) along the main stream of Han River at Seoul city and 5 points of Nakdong River at Daegu city. The samples ware measured and analyzed in accordance with the recognized methods in the "Standard Methods or Examination of Water and waste" by American Public Health Association. The obtained results are as follows: I.Han River. 1. Average turbidity was 5.1 units ranging from 1 to 10 units and the turbidity of down stream was higher than that of the upper stream. 2. pH value showed slight alkalinity (mean ; 7.2) except Yunchang-Dong (6.9). 3. The mean value of Dissolved Oxygen contents (D.O) was 7.2 ppm (range of 3.4-10.5ppm). D.O of the upper stream (8.2 ppm. at Walker Hill boating place, 8.0 ppm. at the Gwangzang Bridge and Ddookdo) was higher than that of he downstream (5.6ppm. at Yunchang-Dong. 6.4ppm. at the 2nd Han River Bridge), and D.O in the winter season was higher than that in the summer season, respectively. 4. The mean value of the Biochemical Oxygen Demand (B.O.D.) was 28.3 ppm. (range of 6.2-64.8ppm). The mean value of B.O.D. was 48.7 ppm. at Yunchang-Dong. 42.3ppm. at the 2nd Han River Bridge, 34.0 ppm. at the 1st Han River bridge, 28.5 ppm. at the 3rd Han River Bridge, 19.2 ppm. at Dookdo, 13.2 ppm. at the Gwangzang Bridge, and 10.2 ppm. at the Walker Hill boating place in order of value. B.O.D. in July and August (35.6 and 34.5 ppm.) were the highest and that in November and December (18.6 and 21.2 ppm.) were the lowest. 5. Suspended Solids (SS) were from 15.0 to 667.0 ppm. with the mean of 222.1 ppm "Suspended Solids" of the water samples at Yunchang-Dong and the 2nd Han River Bridge were found to be 378.1 ppm. and 283.9 ppm. respectively which were higher than at the Gwangzang Bridge (134.1ppm.) and at Walker Hill boating place (79.3ppm). 6. Coliform colonies counting of the water samples ranged from 0-2, 500x10/100ml. with the mean value of 205.6x10/100ml. The most contaminated water sample by coliform were from the point of the 2nd Han River Bridge with 640.8x10/100ml while the lowest ones were from Walker Hill boating place with 17.2x10/100ml. There was also a seasonal variation in coliform contamination that is the higher in summer and the lower in winter. II. Nakdong River. 1. The mean value of turbidity was 2.3 units with range of 0 to 9.0 units. The highest point was at Geumho River (7.2 units). and the lowest point was at Gangzung and Moonsan (0.45 and 0.41 units). 2. The mean value of pH was 7.5 (range of 7.1-8.5) and highest point was Geunho River with 8.5. 3. The mean value of D.O was 8.1ppm. (range of 3.4-11.2 ppm.). D.O. of the upper stream showed higher value than that of the down stream, and the winter season than the summer season. 4. B.O.D. ranged from 2.6 to 57.0 ppm. (mean; 20.4 ppm.). The water sample at Geumho River showed the highest value (41.5ppm) while at Moonsan and Gangzung showed the lowest (4.6 and 4.7 ppm.). 5. The mean value of suspended solids was 48.7 ppm. (range of 4.0-182.0 ppm.). The highest month was July (63.7 ppm.) and August (62.1 ppm.) and the lowest month was October (37.0 ppm.) and December (24.4 ppm.). 6. The mean value of the coliform colonies was 22.7x10/100ml. (range of 0-243x10/100ml.). The highest number of the colonies was found in the sample water at the Whawon recreation area (50.5x10/100ml.) followed by the Geumho River (33.9x10/100ml;), the Goryung Bridge (28.3x10/100ml.), Gangzung(0.7x10/100ml), and Moonsan (0.6x10/100ml.).
American Public Health Association
;
Daegu
;
Hydrogen-Ion Concentration
;
Oxygen
;
Recreation
;
Rivers*
;
Seasons
;
Seoul
;
Ships
;
Water Pollution*
;
Water*