1.Detection of human immunodeficiency virus-1 and -2 DNA in seropositive Koreans by two-step polymerase chain reaction and hybridization with digoxigenin-probes.
Tai Gyu KIM ; Hoon HAN ; Gum Ryong KIM ; Chun KANG ; Yung Oh SHIN
Journal of the Korean Society of Virology 1992;22(1):81-90
No abstract available.
DNA*
;
Humans*
;
Polymerase Chain Reaction*
2.NCAM140 and pCREB Expression after Tianeptine Treatment of SH-SY5Y Cells.
Mi Gyung LEE ; Daeyoung OH ; Mi Ran CHOI ; Young Gyu CHAI ; Seok Hyeon KIM ; Dong Hoon OH ; Joonho CHOI
Psychiatry Investigation 2014;11(3):313-318
OBJECTIVE: Antidepressants Modulate Neuronal Plasticity. Tianeptine, An Atypical Antidepressant, Might Be Involved In The Restoration Of Neuronal Plasticity; It Primarily Enhances The Synaptic Reuptake Of Serotonin. Ncam140 Is Involved In Neuronal Development Processes, Synaptogenesis And Synaptic Plasticity. We Investigated The Effect Of Tianeptine On The Expression Of Ncam140 And Its Downstream Signaling Molecule In The Human Neuroblastoma Cell Line Sh-sy5y. METHODS: NCAM protein expression was measured in human neuroblastoma SH-SY5Y cells that were cultivated in serum-free media and treated with 0, 10, or 20 microM tianeptine for 6, 24, or 72 hours. NCAM140 expression in the tianeptine treatment group was confirmed by Western blot, and quantified through measurement of band intensity by absorbance. CREB and pCREB expression was identified after treatment with 20 microM tianeptine for 6, 24, and 72 hours by Western blot. RESULTS: Compared to cells treated for 6 hours, cells treated with 0 or 10 microM tianeptine for 72 hours showed a significant increase in NCAM140 expression and cells treated with 20 microM tianeptine showed a significant increase after 24 and 72 hours. The pCREB level in cells treated with 20 microM tianeptine increased in time-dependent manner. CONCLUSION: Our findings indicated that the tianeptine antidepressant effect may occur by induction of NCAM140 expression and CREB phosphorylation.
Antidepressive Agents
;
Blotting, Western
;
Cell Line
;
Culture Media, Serum-Free
;
Humans
;
Neural Cell Adhesion Molecules
;
Neuroblastoma
;
Neuronal Plasticity
;
Neurons
;
Phosphorylation
;
Plastics
;
Serotonin
3.A Case of Obstructive Esophageal Hematoma after Endoscopic Variceal Ligation.
Bong Soo LEE ; Byeong Hoon BYEON ; Ki Weon OH ; Seung Gyu YOON ; Soo Hyuk OH ; Yeong Min PARK ; Nam Jong BAEG ; Boo Seong KIM
Korean Journal of Gastrointestinal Endoscopy 1993;13(1):11-14
Endoscopic variceal ligation(EVL) is an accepted alternatives to endoscopic injection sclero- therapy(EIS) in many patients with bleeding esophageal varices. Esophageal hematoma is rare and an unusual complication after EVL or EIS. We present a patient with liver cirrhosis who developed an obstructive esophageal hematoma after EVL.
Esophageal and Gastric Varices
;
Hematoma*
;
Hemorrhage
;
Humans
;
Ligation*
;
Liver Cirrhosis
4.The Results of Radiation Therapy in Stage III Non-Small Cell Lung Cancer.
Sang Gyu CHOI ; Do Hoon OH ; Hoon Sik BAE
Journal of the Korean Society for Therapeutic Radiology 1995;13(4):311-320
PURPOSE: To evaluate the survival and prognostic factors in patients with stage III non-small cell lung cancer treated with curative radiotherapy alone or combined with chemotherapy. MATERIALS AND METHODS: A retrospective analysis was undertaken of 35 patients who had locally advanced non-small-cell lung cancer and t treated with curative radiotherapy in Department of Therapeutic Radiology, Kangdong Sacred Heart Hospital, from January 1991 through December 1993. According to AJCC staging, 15 patients were stage IIIA, and 20 were stage IIIB. Radotherapy was delivered with 1.8-2 Gy per fraction/day, 5 days per week using 6 MV X-ray, to a total dose ranging from 48.8 Gy to 66.6 Gy(median, 61.2 Gy) in 4 to 9 weeks. Ten patients received neoadjuvant or concurrent chemotherapy with FIP (5-FU, ifosfamide, and cisplatin) or FP(5-FU and cisplatin). RESULTS: For all patients, median survival was 6 months, 1-year and 2-year survival rates were 23.3% and 6.7%, respectively. The median survival was 8 months in stage IIIA and 5.5 months in stage IIIB. In patients treated with radiation therapy alone, median survival was 5 months and 1-year survival rate was 9%. In patients who received chemotherapy, median survival was 11 months and 1-year survival rate was 60%. The difference of survival between these two groups was statistically significant (p=0.03). Total radiation dose, degree of response, and post-treatment ECOG score were also significantly associated with survival. But it was not affected by age, sex, pretreatment ECOG score, presence or absence of weight loss, tumor location, pathologic type, N stage, and degree of response to treatment. CONCLUSION: Conventional radiotherapy alone is unlikely to achieve long term survival in patients with stage III NSCLC. Radiotherapy with altered fractionation schedule or multimodality treatment combined with surgery and/or chemotherapy should be considered if feasible.
Appointments and Schedules
;
Carcinoma, Non-Small-Cell Lung*
;
Drug Therapy
;
Heart
;
Humans
;
Ifosfamide
;
Lung Neoplasms
;
Radiation Oncology
;
Radiotherapy
;
Retrospective Studies
;
Survival Rate
;
Weight Loss
5.Recurrent Meningitis due to Growing Basal Skull Fracture of Orbital Roof: A Case Report.
Gyu Seok LEE ; Yong KO ; Kwang Hum BAK ; Jae Min KIM ; Young Soo KIM ; Choong Hyun KIM ; Sung Hoon OH ; Suck Jun OH ; Kwang Myung KIM ; Nam Kyu KIM ; Sung Hee OH
Journal of Korean Neurosurgical Society 1998;27(4):501-504
A 6-year old boy was admitted with high fever and redness of the right eyelids and the surrounding area. He had previously suffered cerebral contusion, basal skull fracture and pneumocephalus following a traffic accident which required six months' hospitalization. Since then, and prior to admission, he had twice suffered probable bacterial meningitis and had been treated at an outstanding hospital. At the time of this admission, the patient again developed high fever, with redness of the right eyelid and surrounding area. His symptomatology suggested bacterial meningitis and cerebrospinal fluid culture revealed Streptococcus pneumoniae sensitive to penicillin. In accordance with the clinical course of meningitis and accompanying sinusitis, the appropriate antibiotic and its duration of usage were determined. Recurrent episodes of bacterial meningitis in this child raised the possibility of anatomical defect as an a contributory factor. Computerized tomographic(CT) cisternography suggested leakage of cerebrospinal fluid and revealed herniated frontal brain tissue protruding through a gap in the right frontal skull base, three dimensional CT(3-D CT) confirmed this defect, which was 3X4cm in size. After recovery from meningitis, surery to prevent recurrent meningitis, was performed. To locate pathologic areas, the subfrontal approach,involving bicoronal skin incision and bifrontal bone flap was used. Multiple fracture lines and a large bony defect on the orbital roof were observed, together with a dural defect, through which cerebromalatic tissue was herniated as encephalocele. Using lyophilized dura, the dural defect was made watertight; the bony defect was packed with autologous fats and covered with titanium mesh. The patient improved after surgery. Recurrent meningitis with anatomical pathologic focus after head trauma requires surgical intervention.
Accidents, Traffic
;
Brain
;
Cerebrospinal Fluid
;
Child
;
Contusions
;
Craniocerebral Trauma
;
Encephalocele
;
Eyelids
;
Fats
;
Fever
;
Hospitalization
;
Humans
;
Male
;
Meningitis*
;
Meningitis, Bacterial
;
Orbit*
;
Penicillins
;
Pneumocephalus
;
Sinusitis
;
Skin
;
Skull Base
;
Skull Fractures*
;
Skull*
;
Streptococcus pneumoniae
;
Titanium
6.Ventricular Remodeling after Acute Myocardial Infarction.
Wan Joo SHIM ; Chang Gyu PARK ; Young Hoon KIM ; Hong Seog SEO ; Dong Joo OH ; Jung Euy PARK ; Young Moo RO
Korean Circulation Journal 1993;23(6):921-927
BACKGROUND: Left ventricular dilatation after acute myocardial infarction is caused by infarct expansion and compensatory dilatation of noninfarct area. This study was done to investigate the contributory topographical change of left ventricle to left ventricular dilatation after acute myocardial infarction. METHODS: 24 first acute myocardial infarction was studied with 2-dimensional echocardiography serielly. First study was done at 7days and second study was done 9 months after an infarction attack. Left ventricular volume was measured by Simpson's method in end-diastolic frame and change of end diastolic left ventricular surface area was measured in apical 4 chamber view. Left ventricular surface area was devided by ischemic(noncontraction) and nonischemic(contracting) area by connecting central point of long axis of left ventricle and the junction of dyssynergic motion and normal motion point in outer rim of left ventricle in end diastolic frame of apical 4 chamber view. RESULTS: Mean left ventricular end-diastolic volume at entry was 114+/-23ml and increased to 121+/-27ml at 9 months after acute myocardial infarction in whole group(p=0.02). In a subgroup of anterior infarction, the left ventricular surface area was increaed in 9 cases with increared left ventricular volume(34.8+/-5.1cm2 to 36.4+/-4.1cm2, p=0.02) and ischemic surface area did not change in these group. In 7 patients without increase in left ventricular volume, the left ventricular surface area did not change and ischemic surface area decreased(9.4+/-4cm2 to 8+/-3.2cm2, p=0.03) at 9 months. CONCLUSION: Thus the increase in left ventricular end-diastolic volume between 13 days and 9 months after acute myocardial infarction is considered to be a consequence of noninfarct ventricular area dilatation.
Axis, Cervical Vertebra
;
Dilatation
;
Echocardiography
;
Heart Ventricles
;
Humans
;
Infarction
;
Myocardial Infarction*
;
Stroke Volume
;
Ventricular Remodeling*
7.Clinical Effect and Safety of Celiprolol in Patients with Essential Hypertension.
Chang Gyu PARK ; Young Hoon KIM ; Hee Nam PARK ; Hong Seog SEO ; Wan Joo SHIM ; Dong Joo OH ; Jung Euy PARK ; Young Moo RO
Korean Circulation Journal 1993;23(6):907-914
BACKGROUND: Celiprolol is a new generation beta-adrenoreceptor blocking agent with intrinsic sympathomimetic activity characterized by selective blockade of beta1 receptors and partial agonist activity at beta2 receptors. This study was designed to investigate the antihypertensive efficacy and safety of celiprolol in patients with essential hypertension. METHODS: The study subjects consisted of 36 patients(mean age : 55 years, 11 males, 25 females). Celiprolol was administered orally in a aily dose of 200-800mg once or two divided dose for 10 weeks after the admimstration of placebo for 2 weeks. RESULTS: Blood pressure was significantly reduced from 171+/-19/106.8mmHg to 153+/-20/92+/-12mmHg(p<0.01) after 2 week of therapy and this effect was maintained throughout the study periods. The efficacy rates were total 94%(marked improve : 53%, moderate improve : 22%, mild improve : 19%). The cumulative efficacy rate was 72% at 200mg/day, 91% at 400mg/day, and 94% at 800mg/day. Heart rate did not change throughout 10 weeks. There were no significant change in hematologic and blood chemistry variables. During the period of medication, headache developed in 3 cases(8%) and each of dry cough, dyspnea, epigastric pain and diarrhea and facial flushing developed in 1 case(2.8%) but they were tolerable. CONCLUSIONS: This results suggest that celiprolol is effective and safe drug in the treament of patients with essential hypertension.
Blood Pressure
;
Celiprolol*
;
Chemistry
;
Cough
;
Diarrhea
;
Dyspnea
;
Flushing
;
Headache
;
Heart Rate
;
Humans
;
Hypertension*
;
Male
8.Diagnostic Value of QT and JT Dispersion in Exercise ECG.
Hui Nam PARK ; Young Hoon KIM ; Sang Weon PARK ; Do Sun LIM ; Chang Gyu PARK ; Hong Seog SEO ; Wan Joo SHIM ; Dong Joo OH ; Young Moo RO
Korean Circulation Journal 1995;25(3):560-567
BACKGROUND: QT dispersion(QTD : QTmax-QTmin) or JT dispersion(JTD:JTmax-JT-min)in 12 leads ECG has been known to reflect regional variations in ventricular repolarization and has been reported to bel one of the marker of regional myocardial ischemia. To evaluate the significance of QTD or JTD of exercise ECG in diagnosis of coronary artery disease, we studied 106 patients(mean age, 56.9 years old, male 63) who were referred for the evaluation of chest pain on exertion. METHOD: Treadmill exercise stress test with modified Bruce protocol and coronary angiography were performed in 106 patients with chest pain on exertion. ST-segment depression by >1.0 mm 0.08 second after J-point during or after exercise in exercise test and >50% stanosis of epicardial artery in coronary angiogram were defined as positive. Of 106 patients, 41 had positive exercise ECG and positive coronary angiogram(true positive, TP), 20 had positive exercise ECG and negative coronary angiogram(false positive, FT), 20 had negative exercise ECG and positive coronary angiogram(faalse negative, FN), and 23 had negative exercise ECG and negative coronary angiogram(true negative, Tn). QT and JT interval in 12 leads were measured at baseline and peakexercise and were corrected for heart rate using Bazett's formula. QTD and JTD were measured by calculation the difference between the maximum QT and mininum QT and that between maximum JT and minumum JT. RESULTS: QTD at baseline for TP(72.8ms)was prolonged compared to Tn(52.2ms,P<0.01), but was not different from that for FT(70.2 ms). At peak exercise, QTD for TP(81.3 msec) was significantly prolonged(p<0.01), while QTD for FP(71.2 msec) was not different from that for TN(56.8 msec). JTD at baseline(78.4 msec) and at peak exercise(88.2 msec) for TP were significantly prolonged compared to those for TN(55.2msec and 55.1msec p<0.01,p<0.01, respectively), but those for FP were not porlonged(77.0msec and 79.0msec, respectively). QTD and JTD at peak exercise were more markedly prolonged in patients with sever stenosis of coronary artery(p=0.053 and p<0.05, repectively) and multivessels diseases(p<0.01, 0<0.05) than those with less severe disease and single vessel disease. Patients with left anterior descending artery lesion had greater QTD and JTD at peak exercise than those with other vessels lesion(p<0.01). In addition to standard criteria with ST segment displacement in exercise EGC, inclusion of exercise induced QTD of more than 60msec increased the sensitivity of exercise ECG from 66.7% to 83.3%, and JTD of more than 70msec increased the specificity from 52% to 76.0%. CONCLUSION: Measurement of QT dispersion and JT dispersion of exercise ECG may be useful method to identify the severity of coronary artery disease and to improve diagnostic accuracy of exercise ECG in coronary artery disease.
Arteries
;
Chest Pain
;
Constriction, Pathologic
;
Coronary Angiography
;
Coronary Artery Disease
;
Depression
;
Diagnosis
;
Electrocardiography*
;
Exercise Test
;
Heart Rate
;
Humans
;
Male
;
Myocardial Ischemia
;
Sensitivity and Specificity
9.Comparison of Dobutamine Echocardiography and Contrast Echocardiograph in Patients with Myocardial Infarction.
Wan Joo SHIM ; Woo Hyuk SONG ; Dong Kuy JIN ; Do Sun LIM ; Chang Gyu PARK ; Young Hoon KIM ; Dong Joo OH ; Young Moo RO
Korean Circulation Journal 1996;26(1):62-68
BACKGROUND: Dobutamine echocardiography is a useful method to detect myocardial viability in ischemic heart disease. Recently myocardial contrast echocardiography(MCE) is reported to be a new method to evaluate myocardial viability by assessing microvascular integrity of dysfunctional myocardium. We hypothesized if the microvascular integrity is maintained, the dysfunctional myocardium would improve its function by dobutamine infusion. METHOD: 10 myocardial infarction patients (acute : old=8 : 2, M : F=7 : 3, mean age=61+/-11yr) were included in the study. 2 dimensional echocardiography was performed before and during dobutamine infusion and after contrast injection to right and left coronary arteries in the catheterization laboratory. Echocardiographic analysis was done in parasternal short, apical 4 and 2 chamber views. Left ventricule was devided by 20 segments from 3 views. In each segment, will motion score(graded 1, normal, to 5, dyskinesia) before and after dobutamine infusion and opacification grade(0, 0.5, 1 denoting no, intermediate and normal opacification respectively) was compared. RESULTS: The number of segments with abnormal wall motion at baseline were 57 segments. 5 segments was exciuded due to poor image quality. Among 52 segments, 25 segments improved it's function during dobutamine infusion. Improvement of regional function was more frequent in hypokinetic segments than akinetic or dyskinetic segments (69% vs 15%). The improvement of dysfunctional regional wall motion by dobutamine infusion was observed in 80%(19/24), 67%(6/9) and 5%(1/19) of normally, intermediately and none opacified segment respectively. The correlation between wall motion score with opacification grade was 0.598 at baseline and increased to 0.766 after dobutamine infusion. CONCLUSION: In patients with myocardial infarction the dysfunctional segments but intact microvasculature assessed myocardial contrast echocardiography improves function by dobutamine infusion. These findings myocardial contrast echocardiography would be a useful method to detect myocardial viability.
Catheterization
;
Catheters
;
Coronary Vessels
;
Dobutamine*
;
Echocardiography*
;
Humans
;
Microvessels
;
Myocardial Infarction*
;
Myocardial Ischemia
;
Myocardium
10.Assessment of collateral flow and myocardial perfusion by myocardial contrast echocardiography after coronary vasodiator during acute coronary occlusion.
Young Hoon KIM ; Dong Kyu JIN ; Hye Hyung KIM ; Chang Gyu PARK ; Hong Seog SEO ; Wan Joo SHIM ; Dong Joo OH ; Young Moo RO
Journal of the Korean Society of Echocardiography 1993;1(1):16-30
No abstract available.
Coronary Occlusion*
;
Echocardiography*
;
Perfusion*