1.The expression and tyrosine phosphorylation of E-cadherin, beta-, gamma-catenin and EGFR after treatment of EGF and TGF-alpha in Cervical Cancer Cell Lines.
Hye Sung MOON ; Eun Ah CHOI ; Hye Young PARK
Korean Journal of Gynecologic Oncology and Colposcopy 2000;11(1):13-23
OBJECTIVES: Cadherin/catenin adhesion complex is fundamentally involved in epithelial cancer invasion and metastasis. E-cadherin and EGFR colocalize on the basolateral membrane of epithelial cell and EGF down-regulate E-cadherin expression. In the invasion and metastasis of cancer, E-cadherin expression is decreased and growth factors receptor is overexpressed. The present study was aimed to find the role of E-cadherin, beta-and gamma-catenin, growth factors and its receptors in cervical cancer cell lines. METHODS: The cervical cancer cell cultures were treated with different time duration of EGF 30 ng/ml and TGF-a 10 ng/ml(0, 10 min, 20 min, 30 min, 1 hr, 2 hr, 4 hr, 8 hr, 24 hr). The change in cancer cell morphology and the changes in E-cadherin, beta- and gamma-catenin, EGFR and activated EGFR expression were studied with a western blot analysis and an immunoprecipitation. RESULTS: Through a western blot analysis, E-cadherin 120 kDa band and EGFR 170 kDa band were expressed in CaSki, HT-3 and ME-180 cell line, which showed epithelial contact growth. 1n these 3 cell lines, expression of E-cadherin did not decrease with time dependent manner. after the treatment of EGF and TGF- alpha. The expression of EGFR decreased and activated EGFR expression increased in 30 minutes to 1 hour but decreased subsequently. When the cells treated with EGF, there were no change in beta-and gamma-catenin expression with there dependent manner. The tyrosine phosphorylation of beta-and gamma-catenin increased in 30 minutes to 1 hour but decreased subsequently with activated EGFR. CONCLUSION: This study showed that an activated EGFR which has involved with tyrosine phosphorylation of beta- and gamma-catenin influenced by growth factors rather than expression of E-cadherin, has a role in the invasion and metastasis of the cervical cancer.
Blotting, Western
;
Cadherins*
;
Cell Culture Techniques
;
Cell Line*
;
Epidermal Growth Factor*
;
Epithelial Cells
;
gamma Catenin*
;
Immunoprecipitation
;
Intercellular Signaling Peptides and Proteins
;
Membranes
;
Neoplasm Metastasis
;
Phosphorylation*
;
Transforming Growth Factor alpha*
;
Tyrosine*
;
Uterine Cervical Neoplasms*
2.Metabolic Syndrome and Oxidative Stress, Antioxidants.
Journal of the Korean Academy of Family Medicine 2006;27(10):773-781
No abstract available.
Antioxidants*
;
Oxidative Stress*
3.A Case Report: Prenatal Ultrasonographic Diagnosis of Autosomal Dominant Polycystic Kidney Disease.
Eun Hye LEE ; Myung Choel SHIN
Korean Journal of Obstetrics and Gynecology 2000;43(1):109-112
Autosomal dominant polycystic kidney disease (ADPKD) is a hereditary disorder characterized by renal cyst formation, hypertension, and end-stage renal disease. For many years, ADPKD was considered an adult disease. In fact, it may occur at any time in life including in utero. We experienced a case of ADPKD at 34 weeks of gestation. On ultrasound, both kidnies were enlarged and echogenic. Amniotic fluid index was normal. We discovered a family history of paternal origin. Sonographic findings of bilaterally enlarged and echogenic kidnies without oligohydroamniosis may suggest ADPKD. Renal ultrasound examination of parents is useful in the diagnosis of ADPKD.
Adult
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Amniotic Fluid
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Diagnosis*
;
Female
;
Humans
;
Hypertension
;
Kidney Failure, Chronic
;
Parents
;
Polycystic Kidney, Autosomal Dominant*
;
Pregnancy
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Prenatal Diagnosis
;
Ultrasonography
4.Radiologic findings of pulmonary angiodysplasia
Journal of the Korean Radiological Society 1983;19(4):716-726
Pulmonary angiodysplasia indicates all forms of abnormal intrapulmonary arteriovenous comunication, usuallycalled pulmonary arteriovenous fistula. Most frequent form of pulmonary angiodysplasia is single or multiplediscrete nodular lesion, and diffuse telangiectatic type consists another variety. More than 50% of pulmonaryangiodysplasias are associated with hereditary hemorrhagic telangiectasia. And rearely chronic liver disease iscomplicated by pulmonary arteriovenous fistula which is called hepatogenic pulmonary angiodysplasia. Weexperienced 6 cases of pulmonary angiodysplasia confirmed by cardiac catheterization and angiography from 1977 to1983. 5 cases were children below 11 years of age exhibiting cyanosis except one who has pulmonary angiodysplasiasupplied by systemic arteries. 3 were hereditary hemorrhagic telangiectasia and one was hepatogenic pulmonaryangiodysplasia. Discrete nodular pulmonary lesion was present in 3 cases while remaining 3 cases were diffusetelangiectatic type. The clinical and radiological findings of pulmonary angiocysplasia is described with a briefreview of literature.
Angiodysplasia
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Angiography
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Arteries
;
Arteriovenous Fistula
;
Cardiac Catheterization
;
Cardiac Catheters
;
Child
;
Cyanosis
;
Humans
;
Liver Diseases
;
Telangiectasia, Hereditary Hemorrhagic
5.A study on radiation exposure dose at brain CT
Journal of the Korean Radiological Society 1984;20(1):33-36
Radiation exposure dose for patients during brain CT scan with General Electric C.T./T.8800 was measured using CaF. :Mn thermoluminescent dosimeter chips. The skin dose in single slice scan was 1.26±0.1 0 rad, and that in 9 slice scan was 2.06±0.16 rad. So the ratio was 1.63. The surface dose in profile along axial distance in multiple slice scan was also measured, and was found to be low at the junction of 2 slices. The lens dose in multiple slice scan was 0.27±0.05 rad , too small to induce any pathologic condition. As noted from the above data, the radiation exposure dose during CT scanning is not high compared with other radiologic examinations.
Brain
;
Humans
;
Radiation Exposure
;
Skin
;
Tomography, X-Ray Computed
6.Relationship of Shift Work to Gastrointestinal Disorders in Hospital Nurses.
Eun Ju KIM ; Hye Sun JUNG ; Eun Hi CHOI
Korean Journal of Health Promotion 2014;14(4):172-179
BACKGROUND: This study researched the relationship between shift work and one of its relevant health problems, functional gastrointestinal disorders. The study targeted nurses working at a university hospital, and compared the differences in gastrointestinal disorders of shift workers and non-shift workers and identified causes that significantly influence these symptoms. METHODS: In August 2013, a self-report survey was conducted on nurses working at a university hospital. Among those sent out, 1,201 responded and 851 were used for the final analysis. RESULTS: It was shown that the frequency of gastrointestinal disorders in shift workers was 1.881 times higher than that of non-shift workers. Factors that influenced gastrointestinal disorders included age, marital status, work duration, type of employment, job satisfaction, and perceived health status. Gastrointestinal disorders were seen more often with older age, being married, longer duration of employment, non-regular worker, low job satisfaction, bad perceived health status, and shift works. CONCLUSIONS: To prevent gastrointestinal disorders in nurses who work shifts, a health checkup system should be in place for clinical nurses who are of older age and have longer employment records. To decrease the causes of gastrointestinal disorders, campaigns suggesting regular diet and quitting alcohol use should be held consistently. Also, a category related to gastrointestinal disorders should be added to the employee health checkup for nurses with long work experience.
Diet
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Employment
;
Gastrointestinal Diseases
;
Job Satisfaction
;
Marital Status
;
Occupational Health
7.A Case of Lichen Planus Treated with Griseofulvin.
Hye Ran JI ; Eun Jung CHUNG ; See Yong PARK
Korean Journal of Dermatology 1983;21(4):439-443
Improvement of lichen planus was achieved by 11 weeks of daily oral treatment with griseofulvin. The patient was 59-year-old male, has had hypertension and diabetes mellitus for 9 months, and history of various drug intake to these diseses for 6 months. Four months before first visit, symptome of lichen planus had developed suddenly. Because of treatment failure of oral antihistamine and topical steroid for 6 weeks, we began to use griseofulvin. Praspective studies are needed to better assess the affectiveness of griseafulvin in the treatment of lichen planus.
Diabetes Mellitus
;
Griseofulvin*
;
Humans
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Hypertension
;
Lichen Planus*
;
Lichens*
;
Male
;
Middle Aged
;
Treatment Failure
8.Concept Analysis of Middle-aged Women's Seogeulpeum.
Korean Journal of Women Health Nursing 2010;16(4):381-389
PURPOSE: The purpose of this study was to analyze the concept seogueulpeum, in order to give a operational definition of middle-aged women's seogueulpeum. METHODS: Walker and Avant's methods for concept analysis was used. RESULTS: The defining attributes of seogueulpeum identified in this study were 1) time, 2) negativity, 3) vagueness, 4) passivity, 5) individuality. The antecedents of seogueulpeum were 1) a problematic condition, 2) past event, experiences for the problematic condition, and 3) interaction between the problematic condition and past event, experiences. The consequences of seogueulpeum included 1) to get worse for the problematic condition, 2) passive or active management for the problematic condition. CONCLUSION: Although further studies are required to refine the diverse attributes of the concept of seogueulpeum, according to this concept analysis of seogueulpeum, this study contribute to explain psychological health of middle-aged women. In addition to develop the adequate interventions decreasing seogueulpeum with aging in women is needed.
Aging
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Female
;
Humans
;
Individuality
9.The Risk Factors of Industrial Low Back Pain among Shipyard Workers.
Yun Chul HONG ; Eun Hee HA ; Hye Sook PARK
Korean Journal of Preventive Medicine 1996;29(1):91-102
Low back pain patients an controls of shipyard workers were surveyed between June 1995 and september 1995 to identify risk factors of industrial low back pain. The patients were 17 male workers who had got medical treatment for over 3 days because of industrial back pain controls were 51 male workers who had not have musculoskeletal disorder for one year before the survey. By univariate analysis, the workers who did overtime work 4 times or more for the last 2 weeks showed odds ratio of 3.67 on low back pain with the workers who did less overtime work. Carrying heavy materials was also associated with the low back pain and the odds ratio increased with the increase of carrying weight. work space and work posture were not associated with the low back pain significantly. The welder had higher odds ratio than the other workers on low back pain. The duration of employment and job satisfaction did not affect the risk of low back pain. Multiple logistic regression analysis showed that frequency of overtime work for the last 2 weeks and carrying heavy materials among the risk factors were associated significantly with the low back pain. We found that important risk factors of low back pain of shipyard workers are work intensity factors such as overtime work and carrying heavy weight.
Back Pain
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Employment
;
Humans
;
Job Satisfaction
;
Logistic Models
;
Low Back Pain*
;
Male
;
Odds Ratio
;
Posture
;
Risk Factors*
10.An Immunohistochemical Study of the Relationships between Estrogen and Progesterone Receptors and Proliferating Cell Nuclear Antigen in Endometrial Hyperplasia and Adenocarcinoma.
Seol Mi PARK ; Hye Kyoung YOON ; Jong Eun JOO
Korean Journal of Pathology 1996;30(1):15-22
Estrogen and progesterone receptors exist in the epithelial and stromal cells of the endometrium. Proliferative disorders of the endometrium may be associated with autocrine and paracrine actions of estrogen and progesterone in epithelial and stromal cells. This study was performed to evaluate the differences estrogen and progesterone receptor(ER/PR) expression in the epithelial and stromal cells of endometrial hyperplasias and adenocarcinomas using immunohistochemical methods. Immunohistochemical analysis of proliferating cell nuclear antigen(PCNA) was done to evaluate a possible correlation between PCNA and hormone receptor expression. Evaluation was based on samples from 31 simple hyperplasias, 30 complex hyperplasias, and 32 adenocarcinomas. The immunohistochemical expression of ER, PR and PCNA in epithelial and stromal cells were examined according to a scoring system based on the percentage of positive cells and the staining intensity. The results were as follows; 1) The expression of ER and PR in epithelial cells showed a graded, significant decreases in simple hyperplasia, complex hyperplasia and endometrial carcinoma, in that order(ER: P=0.008, PR: P= 0.026). 2) PR expression in the stromal cells showed a significant decrease between hyperplasia and adenocarcinoma(P=0.003). The difference in ER expression was not significant. 3) In stromal cells, the decrease in PR expression was more prominent than the decrease in ER expression when complex hyperplasia was compared to simple hyperplasia. 4) The PCNA expression in simple and complex hyperplasia and adenocarcinoma was not higher than the expression of PCNA in nomal proliferative endometrium. There was no significant difference in PCNA expression between simple and complex hyperplasia and adenocarcinoma(P=0.073). 5) A negative correlation between PCNA and ER/PR expression was not demonstrated in simple and complex hyperplasia, or in adenocarcinoma. Endometrial hyperplasia and adenocarcinoma are probably related to a paracrine action of estrogen and progesterone in epithelial and stromal cells. A progressive loss of PR expression in stromal cells may induce abnormal proliferation of endometrium due to a disrupted hormonal balance.
Adenocarcinoma