1.An Immunohistochemical Study of p53 and RB Protein Expression in Normal Cervical Tissue, Cervical Intraepithelial Neoplasia and Invasive Cervical Carcinoma.
Chan LEE ; Tae Won SUNWOO ; Hee Jung AHN
Korean Journal of Obstetrics and Gynecology 1998;41(9):2295-2303
Carcinoma of the uterine cervix is the most common malignant tumor in Korean women. It is well known that carcinogenesis is a multi-step event involoving the inactivation of tumor supressor genes, such as p53 gene and RB gene. The inactivation of the normal functions of the tumor-suppressor proteins pRB and p53 are important steps in human cervical carcinogenesis, either by mutation or from complex formation with the HPV E6 and E7 oncoproteins. The pRB protein regulates early cell cyle progression by controlling transit through the G1 phase of the cell cyle. The p53 tumor suppressor gene product also plays a role in cell cycle control by the transcriptional regulation of cyclin-CDK inhibitor. Cervical carcinoma is an excellent model for studying the stepwise progression of cell transformation because this is reflected morphologically by the increasing dysplasia of the squamous cells before it becomes and invasive squamous cell carcinoma. The aim of this study was to examine the expression of pRB and compared that with overexpression of p53 in a series of cervical lesions including normal tissuess, dysplasias, carcinoma in situ and carcinomas by immunohistochemical staining with monoclonal antibody to elucidate the role of these tumor suppressor genes. The result were as follows: 1. In normal cervical mucosa and CIN I , a few positively stained cells for pRB were seen in basal and parabasal layer. 2. An abnormality of pRB, loss of expression was seen in 23.8% of CIN III and in 10.8% of invasive carcinoma. 3. Overexpression of p53 was demonstrated in 14.3% of CIN III and in 59.5% of invasive carcinoma. 4. The immunoreactivity of p53 was significantly increased (p<0.05) in stage II, III than stage I , whereas downregulation of pRB and tumor stage was not correlated. 5. The immunoreactivity of p53 was significantly increased (p<0.05) in squamous cell carcinoma than in adenocarcinoma, adenosquamous carcinoma and CIN III. These result suggest that an alteration of pRB is more frequently implicated in CIN III than invasive carcinoma, whereas overexpression of p53 may be involevd in late progression of uterine cervical carcinoma.
Adenocarcinoma
;
Carcinogenesis
;
Carcinoma in Situ
;
Carcinoma, Adenosquamous
;
Carcinoma, Squamous Cell
;
Cell Cycle Checkpoints
;
Cervical Intraepithelial Neoplasia*
;
Cervix Uteri
;
Down-Regulation
;
Female
;
G1 Phase
;
Genes, p53
;
Genes, Retinoblastoma
;
Genes, Tumor Suppressor
;
Humans
;
Mucous Membrane
;
Oncogene Proteins
;
Retinoblastoma Protein*
2.A Clinical Study on the Incompetent Internal Os of the Cervix.
Sun Hee NAM ; K T JANG ; Sin Jung OH ; Jae Gun SUNWOO ; Dong Han BAE
Korean Journal of Perinatology 1997;8(1):32-42
This study was undertaken for the clinical analysis and evaluation on 121 patients with incompetent internal os of the cervix, who were admitted and treated with McDonald operation or Shirodkar operation at the Soonchounhyang Medical Center from January 1991 to December 1995. The results of this study were as follows : 1. The incidence of this IIOC was 1.1% of 11,116 cases of total delivery. 2. The mean age of IIOC was 31.7 years old. 3. The average number of gravida was 3.2. 4. The most common contributary factor was previous history of artificial abortion (51.2 %), and midtrimester abortion (17.4 %), cervical laceration due to previous vaginal delivery (8.3 %) etc. was followed. 5. The success rate of operation was 76 %, and the highest success rate (85.7 %) was reveald with period from 15th weeks to 16th weeks of gestation. 6. When cervical dilatation was abscent or small, the success rate of operation was high. 7. The factors of failed operation were preterm labor (58.7 %), PROM (34.5 %), and PIH, bleeding. 8. The delivery method after operation was vaginal delivery in 83 cases (68.6%) and cesarean section in 38 cases (31.4 %).
Cervix Uteri*
;
Cesarean Section
;
Female
;
Hemorrhage
;
Humans
;
Incidence
;
Labor Stage, First
;
Lacerations
;
Obstetric Labor, Premature
;
Pregnancy
;
Pregnancy Trimester, Second
3.A Case of Leigh Syndrome with Typical MRI and MRS Findings.
Jung Woo KANG ; Jung Chan KIM ; Phil Za CHO ; Jeong Hee CHO ; Seung Min KIM ; Il Nam SUNWOO
Journal of the Korean Neurological Association 2004;22(5):545-547
Leigh syndrome (LS) is a genetically and clinically heterogeneous disorder caused by metabolic defects affecting lactate/pyruvate metabolism. The consequence of the metabolic defects are decreased amounts of APT and basic cell energy productions of the nervous system. In LS, several mutations have been reported in both the nuclear and the mitochondrial genome. Here, we report a 26-year-old woman clinically diagnosed with LS having characteristic brain MR and MRS abnormalities but without known definite pathogenetic mitochondrial DNA mutations.
Adult
;
Brain
;
DNA, Mitochondrial
;
Female
;
Genome, Mitochondrial
;
Humans
;
Leigh Disease*
;
Magnetic Resonance Imaging*
;
Metabolism
;
Mitochondrial Diseases
;
Nervous System
4.Two Cases of Evans Myopathy in a Family.
Jung Hee CHO ; Yeon Kyung JUNG ; Seung Min KIM ; Il Nam SUNWOO
Journal of the Korean Neurological Association 2002;20(5):568-570
Evans myopathy is a type of malignant hyperthermia showing characteristic distribution of myopathic changes. We present two cases of Evans myopathy, father and his son in a family. Five members of this family expired during ane sthesia and surgery and two of these cases were reported as the malignant hyperthermia. The muscle pathology shows moth-eaten appearance with or without unstained cores in NADH-TR stain and its difference between the father and his son is suggestive of rather progressive myopathy than static one. s
Fathers
;
Humans
;
Malignant Hyperthermia
;
Muscular Diseases*
;
Pathology
5.Guidelines for an alcohol clinic in primary healthcare clinics
Jin-Gyu JUNG ; Jong-Sung KIM ; Seok-Joon YOON ; Jang-Hee HONG ; Jung SUNWOO
Journal of the Korean Medical Association 2024;67(4):256-264
In clinical practice, primary healthcare physicians commonly encounter patients with alcohol-related problems. This review article introduces the concept of an alcohol clinic for treating patients with these issues at primary healthcare clinics.Current Concepts: Alcohol-related problems often give rise to health problems, which prompts primary healthcare physicians to be required to develop screening, treatment, and counseling skills. Primary healthcare clinics should actively screen for alcohol-related problems. Screening involves questions regarding the frequency, quantity, and maximum consumption of alcohol to determine risk levels. For Koreans, moderate alcohol consumption is defined as ≤8 drinks per week (1 drink=14 g of alcohol) for men aged up to 65 years, and ≤4 drinks per week for men over 65 years; consumption for women is set at half of the amount defined for men. Individuals experiencing facial flushing after alcohol consumption are advised to limit their alcohol intake to half the amount consumed by those who do not experience flushing.Discussion and Conclusion: The focus for these patients should be on their environment, particularly when implementing a family-oriented approach. The decision to initiate drug treatment should be based on the symptoms of the patient, with follow-up evaluations performed at appropriate time points. The “FRAMES Motivational Enhancement Interview” and “Insight Enhancement Counseling” are recommended for an effective counseling of patients.
6.A Case of Acute Respiratory Muscle Weakness Complicated by Sjogren Syndrome.
Hyo Suk NAM ; Bum Chun SUH ; Jeong Hee CHO ; Yeon Kyung JUNG ; Seung Min KIM ; Il Nam SUNWOO
Journal of the Korean Neurological Association 2007;25(2):240-243
Sjogren syndrome is a chronic autoimmune disease characterized by lymphocytic infiltration of exocrine glands resulting in dry mouth and eyes. Approximately one-third of patients present with systemic manifestations, but respiratory muscle involvements have been rarely reported. We report a case of acute respiratory failure complicated by primary Sjogren syndrome. Muscle biopsy revealed perivascular lymphocytic infiltrations. Corticosteroid therapy improved respiratory muscle weakness. Sjogren syndrome should be considered as one of the underlying diseases causing acute respiratory failure.
Autoimmune Diseases
;
Biopsy
;
Exocrine Glands
;
Humans
;
Mouth
;
Muscular Diseases
;
Respiratory Insufficiency
;
Respiratory Muscles*
;
Respiratory Paralysis
;
Sjogren's Syndrome*
7.The Vascular Pedicle Width seen on Chest PA in Normal Korean Adults.
Hee Jung SUNWOO ; Myeong Im AHN ; Jun Hyun BAIK ; Youn Ju JUNG ; Jee Young KIM ; Seog Hee PARK
Journal of the Korean Radiological Society 2006;54(6):491-496
PURPOSE: We wanted to measure the vascular pedicle width (VPW) in normal Korean adults and correlate the VPW with the body physique and we also wanted to establish the index for normal VPWs, which could be utilized in reading chest PAs. MATERIALS AND METHODS: The VPW was measured on the posteroanterior (PA) chest radiographs of 262 normal Korean adults (134 men and 128 women, age range: 22-88 years, mean age: 45.2 years), who visited the hospital for a general health examination. The relationship between the VPW and the height and the Body Mass Index (BMI) was evaluated. Correlations between height and the thoracic spine length (TSL) and between the BMI and the lateral chest wall thickness (CWT) were analyzed as well. RESULTS: The mean VPW was 47.4 (+/-6.4) mm. The VPW was positively correlated with the height (p<0.01) and the BMI (p<0.01) of the subject. The patient's height was well correlated with the TSL, and the BMI was correlated with the CWT (r=0.75, r=0.76). The table for the normal VPWs according to patient's TSL and CWT was established. CONCLUSION: By measuring the TSL and the CWT on chest PA, which reflect the height and BMI, respectively, and by utilizing the provided table for the normal VPW, we can determine the normality of a patient's VPW.
Adult*
;
Blood Vessels
;
Body Mass Index
;
Female
;
Humans
;
Male
;
Radiography, Thoracic
;
Spine
;
Thoracic Wall
;
Thorax*
8.Increased Prevalence of Left-sided Skin Cancer: A Systematic Review and Meta-analysis.
Jung Eun KIM ; Ga Hee JUNG ; Jong Suk LEE ; Young Lip PARK ; Kyu Uang WHANG ; Eun Young LEE ; Jae Gun SUNWOO ; Hyun Jung KIM ; Sung Yul LEE
Korean Journal of Dermatology 2017;55(6):337-345
BACKGROUND: Based on trends demonstrated in the United States, a very insignificant number of people have shown a predisposition to left-sided skin cancer. However, to date, no systematic review or meta-analysis has demonstrated the predominance of left-sided skin cancers over right-sided skin malignancies. OBJECTIVE: We systematically reviewed and meta-analyzed all data pertaining to locations of skin cancers. METHODS: All data were pooled using the Mantel-Haenszel method (random-effects weighting); an inverse variance model featuring fixed-effects weighting was applied to explore the robustness of modeling. Heterogeneity was evaluated using the I2 test. Dichotomous outcomes with respect to the prevalence of left- and right-sided skin cancers are presented as relative risks (RRs) with 95% confidence intervals (CIs). RESULTS: Nine studies were included in our evaluation. Our study sample included: 182,840 patients with malignant melanoma (MM), 1,419 patients with basal cell carcinoma (BCC), and 331 patients with squamous cell carcinoma (SCC). Meta-analyses of pooled observational data revealed greater prevalence of left-sided MM compared to right-sided MM (RR 0.91, 95% CI 0.89~0.92, p<0.01), while left-sided SCC was more prevalent than right-sided SCC (RR 0.83, 95% CI 0.71~0.97, p=0.02). However, right-sided BCC was more prevalent than left-sided BCC (RR 1.07, 95% CI 0.95~1.19, p=0.26). CONCLUSION: Observational studies vary greatly in terms of design, methodological quality, and types of patients studied. Of note, only a few studies analyzing BCC and SCC were included in our present meta-analysis. Additionally, a selection and reporting bias could have affected our results. Our meta-analysis suggests that both MM and SCC demonstrate a left-side bias, but BCC does not.
Bias (Epidemiology)
;
Carcinoma, Basal Cell
;
Carcinoma, Squamous Cell
;
Humans
;
Melanoma
;
Methods
;
Population Characteristics
;
Prevalence*
;
Skin Neoplasms*
;
Skin*
;
United States
9.Increased Prevalence of Left-sided Skin Cancer: A Systematic Review and Meta-analysis.
Jung Eun KIM ; Ga Hee JUNG ; Jong Suk LEE ; Young Lip PARK ; Kyu Uang WHANG ; Eun Young LEE ; Jae Gun SUNWOO ; Hyun Jung KIM ; Sung Yul LEE
Korean Journal of Dermatology 2017;55(6):337-345
BACKGROUND: Based on trends demonstrated in the United States, a very insignificant number of people have shown a predisposition to left-sided skin cancer. However, to date, no systematic review or meta-analysis has demonstrated the predominance of left-sided skin cancers over right-sided skin malignancies. OBJECTIVE: We systematically reviewed and meta-analyzed all data pertaining to locations of skin cancers. METHODS: All data were pooled using the Mantel-Haenszel method (random-effects weighting); an inverse variance model featuring fixed-effects weighting was applied to explore the robustness of modeling. Heterogeneity was evaluated using the I2 test. Dichotomous outcomes with respect to the prevalence of left- and right-sided skin cancers are presented as relative risks (RRs) with 95% confidence intervals (CIs). RESULTS: Nine studies were included in our evaluation. Our study sample included: 182,840 patients with malignant melanoma (MM), 1,419 patients with basal cell carcinoma (BCC), and 331 patients with squamous cell carcinoma (SCC). Meta-analyses of pooled observational data revealed greater prevalence of left-sided MM compared to right-sided MM (RR 0.91, 95% CI 0.89~0.92, p<0.01), while left-sided SCC was more prevalent than right-sided SCC (RR 0.83, 95% CI 0.71~0.97, p=0.02). However, right-sided BCC was more prevalent than left-sided BCC (RR 1.07, 95% CI 0.95~1.19, p=0.26). CONCLUSION: Observational studies vary greatly in terms of design, methodological quality, and types of patients studied. Of note, only a few studies analyzing BCC and SCC were included in our present meta-analysis. Additionally, a selection and reporting bias could have affected our results. Our meta-analysis suggests that both MM and SCC demonstrate a left-side bias, but BCC does not.
Bias (Epidemiology)
;
Carcinoma, Basal Cell
;
Carcinoma, Squamous Cell
;
Humans
;
Melanoma
;
Methods
;
Population Characteristics
;
Prevalence*
;
Skin Neoplasms*
;
Skin*
;
United States
10.Dichotomizing Level of Pial Collaterals on Multiphase CT Angiography for Endovascular Treatment in Acute Ischemic Stroke: Should It Be Refined for 6-Hour Time Window?
Ho Geol WOO ; Cheolkyu JUNG ; Leonard SUNWOO ; Yun Jung BAE ; Byung Se CHOI ; Jae Hyoung KIM ; Beom Joon KIM ; Moon Ku HAN ; Hee Joon BAE ; Seunguk JUNG ; Sang Hoon CHA
Neurointervention 2019;14(2):99-106
PURPOSE: Although endovascular treatment is currently thought to only be suitable for patients who have pial arterial filling scores >3 as determined by multiphase computed tomography angiography (mpCTA), a cut-off score of 3 was determined by a study, including patients within 12 hours after symptom onset. We aimed to investigate whether a cut-off score of 3 for endovascular treatment within 6 hours of symptom onset is an appropriate predictor of good functional outcome at 3 months. MATERIALS AND METHODS: From April 2015 to January 2016, acute ischemic stroke patients treated with mechanical thrombectomy within 6 hours of symptom onset were enrolled into this study. Pial arterial filling scores were semi-quantitatively assessed using mpCTA, and clinical and radiological parameters were compared between patients with favorable and unfavorable outcomes. Multivariate logistic regression analysis was then performed to investigate the independent association between clinical outcome and pial collateral score, with the predictive power of the latter assessed using C-statistics. RESULTS: Of the 38 patients enrolled, 20 (52.6%) had a favorable outcome and 18 had an unfavorable outcome, with the latter group showing a lower mean pial arterial filling score (3.6±0.8 vs. 2.4±1.2, P=0.002). After adjusting for variables with a P-value of <0.1 in univariate analysis (i.e., age and National Institutes of Health Stroke Scale score at admission), pial arterial filling scores higher than a cut-off of 2 were found to be independently associated with favorable clinical outcomes (P=0.012). C-statistic analysis confirmed that our model had the highest prediction power when pial arterial filling scores were dichotomized at >2 vs. ≤2. CONCLUSION: A pial arterial filling cut-off score of 2 as determined by mpCTA appears to be more suitable for predicting clinical outcomes following endovascular treatment within 6 hours of symptom onset than the cut-off of 3 that had been previously suggested.
Angiography
;
Humans
;
Logistic Models
;
National Institutes of Health (U.S.)
;
Stroke
;
Thrombectomy