1.A Case of Acute Promyelocytic Leukemia with a De novo t(11;19) Chromosomal Translocation.
Sung Yeon CHO ; Ju Youn KIM ; Ju Yeon HEO ; Seong Jin LEE ; Chi Wha HAN ; Je Hoon LEE
Korean Journal of Medicine 2011;80(Suppl 2):S268-S272
Acute promyelocytic leukemia (APL), which is usually defined by the morphological features of the leukemic cells, is characterized by the t(15;17) (q22;q21) chromosomal translocation and disseminated intravascular coagulation. This specific translocation results in a new fusion transcript between the promyelocytic leukemia (PML) gene and the retinoic acid receptor-alpha (RARalpha) gene. Although the presence of this fusion gene can predict a favorable clinical response to all-trans-retinoic-acid (ATRA) treatment, APL with chromosomal translocations other than t(15;17) (q22;q21) is extremely rare and is associated with a poor prognosis. We experienced a case of APL with de novo t(11;19).
Disseminated Intravascular Coagulation
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Leukemia
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Leukemia, Promyelocytic, Acute
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Pathology, Molecular
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Prognosis
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Translocation, Genetic
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Tretinoin
2.Significance of Microalbuminuria in Relation to Subclinical Coronary Atherosclerosis in Asymptomatic Nonhypertensive, Nondiabetic Subjects.
Hyo Eun PARK ; Nam Ju HEO ; Minkyung KIM ; Su Yeon CHOI
Journal of Korean Medical Science 2013;28(3):409-414
We aimed to investigate the significance of microalbuminuria and its relationship with subclinical atherosclerosis in nonhypertensive and nondiabetic patients, by using coronary artery computed tomography (CT). A total of 1,318 nonhypertensive and nondiabetic subjects who had taken coronary artery CT and measured spot urine albumin to creatinine ratio (UACR) were evaluated. The atherosclerotic changes of coronary arteries were greater in subjects with microalbuminuria, reflected by coronary artery calcium score (CACS) and significant coronary artery stenosis (CACS > or = 100 in 15.3% vs 7.6% and stenosis > or = 50% in 11.5% vs 4.9% of patients with vs without microalbuminuria, P = 0.008 and P = 0.011, respectively). Among various parameters that are known as a risk factor or possible biomarkers of coronary artery disease, presence of microalbuminuria, age and Framingham risk score were significantly related to coronary artery stenosis. Among them the presence of microalbuminuria showed stronger correlation than others to the coronary artery stenosis detected by CT, even after adjusting confounding factors (OR 3.397, 95% confidence interval 1.138 to 10.140, P = 0.028). The presence of microalbuminuria by UACR was significantly associated with presence of coronary artery stenosis > or = 50% in asymptomatic, nonhypertensive and nondiabetic general population. Our study suggests that the presence of microalbuminuria may imply subclinical coronary artery disease, even in asymptomatic population.
Adult
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Age Factors
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Aged
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Albuminuria/*complications
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Blood Pressure
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Calcium/analysis
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Coronary Artery Disease/complications/*radiography
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Coronary Stenosis/complications
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Coronary Vessels/chemistry
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Creatinine/urine
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Female
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Humans
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Male
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Middle Aged
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Odds Ratio
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Retrospective Studies
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Risk Factors
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Sex Factors
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Tomography, X-Ray Computed
3.Continuous Positive Airway Pressure Therapy Can Prevent Pulmonary Atelectasis after Laparoscopic Roux-en-Y Gastric Bypass Surgery in Obese Patients
Jong hyuk AHN ; Eun Kee BAE ; Young Ju SUH ; Yong Sun JEON ; Yeon Ji LEE ; Yoonseok HEO
Journal of Metabolic and Bariatric Surgery 2019;8(1):8-17
PURPOSE: To compare the prophylactic effects of postoperative continuous positive airway pressure (CPAP) therapy plus conventional postoperatively pulmonary physiotherapy (CPP) and postoperative CPP alone on the development of pulmonary atelectasis after laparoscopic Roux-en-Y gastric bypass (LGBP) in obese patients. MATERIALS AND METHODS: Patients with BMIs>27.5 kg/m2 aged between 20 and 65 years were enrolled in the present study. All subjects received LGBP and were divided into 2 groups. Patients in the CPAP group received both CPAP and CPP therapy postoperatively, and patients in the conventional group received CPP alone. The primary outcome was the incidence of postoperative pulmonary atelectasis as determined by chest X-ray after LGBP, and the secondary outcome was duration of postoperative hospital stay (HS). RESULTS: Seventy-three patients were enrolled in this study. Fifty-seven patients received CPAP plus CPP, and 16 patients received CPP. The CPAP group had an atelectasis incidence of 40.4% (23/57) and the conventional group an incidence of 62.5% (10/16). Multivariate analysis showed the incidence of atelectasis after LGBP was significantly lower in the CPAP group (OR 0.198, 95% CI 0.045–0.874; P=0.033) and that HS was significantly correlated with the developments of atelectasis, pneumonia, and complications (partial correlation coefficients 0.271, 0.444 and 0.382; P-values 0.025, <0.05 and <0.05, respectively). CONCLUSION: Patients that received continuous positive airway pressure therapy plus conventional pulmonary physiotherapy postoperatively were at significantly less risk of developing pulmonary atelectasis after LGBP than patients that received conventional pulmonary physiotherapy postoperatively.
Continuous Positive Airway Pressure
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Gastric Bypass
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Humans
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Incidence
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Length of Stay
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Multivariate Analysis
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Pneumonia
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Postoperative Care
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Postoperative Complications
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Pulmonary Atelectasis
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Thorax
4.Low Expression of EphB2, EphB3, and EphB4 in Bladder Cancer: Novel Potential Indicators of Muscular Invasion
Tae Ho LEE ; Jin Hyung HEO ; Ju-Yeon JEONG ; Gee Hoon LEE ; Dong Soo PARK ; Tae Hoen KIM
Yonsei Medical Journal 2021;62(8):679-690
Purpose:
Eph receptors are differentially expressed in numerous malignant tumors. This study intended to analyze the roles of EphB receptors (EphB2, B3, and B4) in urinary bladder cancer.
Materials and Methods:
Tissue microarray-based immunohistochemical analysis was used to investigate the expression patterns of EphB2, EphB3, and EphB4 in 154 bladder cancer specimens. Immunohistochemical staining was conducted examining the extent of stained cells and staining intensity. EphB was considered to be highly expressed when the intensity of staining was more than moderate in >25% of cells in the tissue section. Small interfering RNA (siRNA) was used to knock down EphB expression in bladder cancer cell lines (T24, 5637) to determine the effects of EphB on tumor cell invasion, proliferation, and migration.
Results:
EphB receptors (B2, B3, and B4) were detected in 40.9% (EphB2, 63/154), 71.4% (EphB3, 110/154), and 53.2% (EphB4, 82/154) of bladder cancer specimens. Low expression of EphB2, B3, and B4 receptors were significantly associated with higher tumor grade (EphB2, p<0.001; EphB3, p=0.032; EphB4, p<0.001) and muscular invasion (EphB2, p=0.002; EphB3, p=0.009; EphB4, p<0.001). No obvious correlation was observed with other clinicopathological variables, such as age, sex, recurrence, lymph node involvement, metastasis, and overall survival. Inactivation of EphB receptors by siRNA transfection increased cell viability, tumor cell invasion, proliferation, and migration in comparison with untransfected cancer cells.
Conclusion
Low expression of EphB receptors (B2, B3, and B4) can be a predictive marker for muscular invasion of bladder cancer.
5.Low Expression of EphB2, EphB3, and EphB4 in Bladder Cancer: Novel Potential Indicators of Muscular Invasion
Tae Ho LEE ; Jin Hyung HEO ; Ju-Yeon JEONG ; Gee Hoon LEE ; Dong Soo PARK ; Tae Hoen KIM
Yonsei Medical Journal 2021;62(8):679-690
Purpose:
Eph receptors are differentially expressed in numerous malignant tumors. This study intended to analyze the roles of EphB receptors (EphB2, B3, and B4) in urinary bladder cancer.
Materials and Methods:
Tissue microarray-based immunohistochemical analysis was used to investigate the expression patterns of EphB2, EphB3, and EphB4 in 154 bladder cancer specimens. Immunohistochemical staining was conducted examining the extent of stained cells and staining intensity. EphB was considered to be highly expressed when the intensity of staining was more than moderate in >25% of cells in the tissue section. Small interfering RNA (siRNA) was used to knock down EphB expression in bladder cancer cell lines (T24, 5637) to determine the effects of EphB on tumor cell invasion, proliferation, and migration.
Results:
EphB receptors (B2, B3, and B4) were detected in 40.9% (EphB2, 63/154), 71.4% (EphB3, 110/154), and 53.2% (EphB4, 82/154) of bladder cancer specimens. Low expression of EphB2, B3, and B4 receptors were significantly associated with higher tumor grade (EphB2, p<0.001; EphB3, p=0.032; EphB4, p<0.001) and muscular invasion (EphB2, p=0.002; EphB3, p=0.009; EphB4, p<0.001). No obvious correlation was observed with other clinicopathological variables, such as age, sex, recurrence, lymph node involvement, metastasis, and overall survival. Inactivation of EphB receptors by siRNA transfection increased cell viability, tumor cell invasion, proliferation, and migration in comparison with untransfected cancer cells.
Conclusion
Low expression of EphB receptors (B2, B3, and B4) can be a predictive marker for muscular invasion of bladder cancer.
7.The Attitudes of Nurses Toward Transsexuals.
Eun Nam LEE ; Ji Min SEO ; Hyeon Ok JU ; Young Sun SONG ; Dong Mei LEE ; Bok Nam LEE ; Sun Mi SHIN ; Yeon Hee JU ; Ok Hee CHOI ; Yeong Hee HEO
Journal of Korean Academy of Nursing 2006;36(7):1242-1252
PURPOSE: The purpose of this study was to identify the attitude of nurses toward transsexuals. METHOD: The Q-methodology which provides a method of analyzing the subjectivity of each item was used. Twenty-nine nurses classified the 50 selected Q-statements into a normal distribution using a 9 point scale. The collected data was analyzed using the Quanl PC program. RESULT: Four types of attitudes toward transsexuals were identified. The first type (humanitarian acceptance) showed an attitude of respecting transsexuals as human beings and understanding and accepting their desires and difficulties. The second type (superficial understanding) understood the psychological conflicts and suffering of transsexuals but could not accept them as members of families or society. The third type (insufficient understanding) did not feel a sense of rejection toward transsexuals but showed a lack of understanding of their desires and difficulties. The fourth type (rejection) failed to understand the desires and difficulties of transsexuals and showed a sense of rejection toward them, in addition to regarding them as sexually immoral people. CONCLUSION: The results of the study indicate that different approaches of educational programs based on the four types of attitudes toward transsexuals are recommended.
Adult
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*Attitude of Health Personnel
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Demography
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Female
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Humans
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Models, Educational
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Nursing Staff/*psychology
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Q-Sort
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Questionnaires
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*Transsexualism
8.A Case of Biliary Obstruction Caused by Liver Cyst.
Jae Hyuk HEO ; Ju Yeon KANG ; Myong Seob LEE ; Byeong Hak CHO ; Seon Yeong HWANG ; Jeong Hoon SONG ; Ju Il YANG ; Jung Sik CHOI
The Korean Journal of Gastroenterology 2016;68(5):270-273
Most cystic lesions of the liver are found incidentally in imaging studies because they are not symptomatic, and generally do not require treatment. Rarely, however, symptomatic hepatic cysts may develop complications and require treatment. Here, we describe a case of a 77-year-old woman who developed biliary obstruction with abdominal pain due to compression of the bile duct by a simple hepatic cyst. We confirmed the diagnosis based on symptoms and imaging studies. The patient's symptoms improved after simple cyst ablation by sclerotherapy.
Abdominal Pain
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Aged
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Bile Ducts
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Cholestasis
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Diagnosis
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Female
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Humans
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Liver*
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Sclerotherapy
9.Establishment of a Protocol for Determining Gastrointestinal Transit Time in Mice Using Barium and Radiopaque Markers.
Bolormaa MYAGMARJALBUU ; Myeong Ju MOON ; Suk Hee HEO ; Seo In JEONG ; Jong Seong PARK ; Jae Yeoul JUN ; Yong Yeon JEONG ; Heoung Keun KANG
Korean Journal of Radiology 2013;14(1):45-50
OBJECTIVE: The purpose of this study was to establish a minimally invasive and reproducible protocol for estimating the gastrointestinal (GI) transit time in mice using barium and radiopaque markers. MATERIALS AND METHODS: Twenty 5- to 6-week-old Balb/C female mice weighing 19-21 g were used. The animals were divided into three groups: two groups that received loperamide and a control group. The control group (n = 10) animals were administered physiological saline (1.5 mL/kg) orally. The loperamide group I (n = 10) and group II (n = 10) animals were administered 5 mg/kg and 10 mg/kg loperamide orally, respectively. Thirty minutes after receiving the saline or loperamide, the mice was administered 80 microL of barium solution and six iron balls (0.5 mm) via the mouth and the upper esophagus by gavage, respectively. Afterwards, the mice were continuously monitored with fluoroscopic imaging in order to evaluate the swallowing of the barium solution and markers. Serial fluoroscopic images were obtained at 5- or 10-min intervals until all markers had been excreted from the anal canal. For analysis, the GI transit times were subdivided into intestinal transit times (ITTs) and colon transit times (CTTs). RESULTS: The mean ITT was significantly longer in the loperamide groups than in the control group (p < 0.05). The mean ITT in loperamide group II (174.5 +/- 32.3) was significantly longer than in loperamide group I (133.2 +/- 24.2 minute) (p < 0.05). The mean CTT was significantly longer in loperamide group II than in the control group (p < 0.05). Also, no animal succumbed to death after the experimental procedure. CONCLUSION: The protocol for our study using radiopaque markers and barium is reproducible and minimally invasive in determining the GI transit time of the mouse model.
Analysis of Variance
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Animals
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Barium Sulfate/pharmacology
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Contrast Media/administration & dosage
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Female
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Fluoroscopy
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Gastrointestinal Transit/*physiology
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Iron
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Loperamide/administration & dosage
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Mice
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Mice, Inbred BALB C
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Microscopy, Electron, Scanning
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Prostheses and Implants
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Reproducibility of Results
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Sodium Chloride/administration & dosage
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Surface Properties
10.Evaluation of Newly Developed Small (< or = 20 mm) Enhancing Nodules on the Arterial Phase CT after Transcatheter Arterial Cheomoembolization in Patients with Hepatocellular Carcinoma.
Yong Ju MOON ; Yong Yeon JEONG ; Jeong KIM ; Suk Hee HEO ; Nam Kyu CHANG ; Hyo Sun LIM ; Sang Su SHIN ; Heoung Keun KANG
Journal of the Korean Radiological Society 2006;54(2):121-126
PURPOSE: We assessed the clinical significance of newly developed small (< or = 20 mm) early-enhancing hepatic nodules on arterial phase CT after performing transcatheter arterial cheomoembolization (TACE) in patients suffering with hepatocellular carcinoma (HCC). MATERIALS AND METHODS: We searched for the radiologic reports that showed small early enhancing nodule (< or = 20 mm) on the arterial phase imaging of follow-up CT after performing TACE. Thirty-seven lesions in 30 patients had round or oval shaped nodules and the numbers of nodule for one patient was less than five. We classified the nodules by size, location and the decreased attenuation seen on the portal venous phase. The latest follow-up CTs were reviewed to assess the nodules for the final diagnosis. All the follow-up CTs were two-phase spiral CT scans. RESULTS: Twenty-five (67%) of the 37 nodules were recurred HCC, as was determined on the basis of their interval growth and lipiodol uptake after TACE. Among the 37 nodules, seven (18%) disappeared on the latest follow-up CT and they were considered as definite pseudolesions. The remaining five (15%) were stable in size or they decreased in size, and they were considered as probable pseudolesions. The mean size of the nodules on initial CT was 11 mm. The mean size of the malignant nodules was 11+/-4.2 mm and that of the benign pseudolesions was 9+/-4.9 mm. The nodules located on the hepatic surface were possible to definite benign pseudolesions (p<0.05). All ten low attenuated nodules seen on the portal phase were HCCs. CONCLUSION: When seen on the follow-up CT scans of HCC patients after performing TACE, the newly developed small early-enhancing nodules were considered to have high potential of being HCC by their locations and enhancing patterns.
Carcinoma, Hepatocellular*
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Diagnosis
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Ethiodized Oil
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Follow-Up Studies
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Humans
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Liver Neoplasms
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Tomography, Spiral Computed
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Tomography, X-Ray Computed