1.Expression of Bovine Growth Hormone Gene in a Baculovirus, Hyphantria cunea Nuclear Polyhedrosis Virus.
Kap Ju PARK ; Keun Kwang LEE ; Bong Ju KANG ; Sung Chul CHA ; Hyung Hoan LEE
Journal of the Korean Society of Virology 1998;28(2):129-138
Bovine growth hormone (bGH) gene was expressed in an insect spodoptera frugiperda cell line using a Baculovirus, Hyphantria cunea nuclear polyhedrosis virus (HcNPV). The bGH gene in pbGH plasmid was sequenced and amplified by PCR technique with two primers containing NcoI sites. The bGH gene consisted of 654 bp (217 amino acid residues), the 5'-untranslated region of the cloned bGH cDNA contains 56 bp, and the 3'-untranslated region contains 145 bp and two pallindromic regions. The amplified bGH gene DNA fragment (654 bp) was inserted into the NcoI site of the pHcEVII vector, which was named pHcbGH. The pHcbGH transfer vector DNA and the wild type HcNPV DNA were cotransfected into s. frugiperda cells to construct a recombinant virus. Eight recombinant viruses were selected and named HcbGH. One clone, HcbGH-4-1 showed largest plaque size, therefore the recombinant virus was further studied. The multiplication patters of the recombinant HcbGH-4-1 was similar to that of the wild type HcNPV. The bGH gene DNA in the HcbGH-4-1 recombinant was confirmed by Southern lot hybridization. The amount of the bGH (217 amino acid residues, 21 kDa) produced in S. frugiperda cells infected with the HcbGH-4-1 recombinant was approximately 5.5 ng per ml (106 cells) by radioimmunoassay.
Baculoviridae*
;
Cell Line
;
Clone Cells
;
DNA
;
DNA, Complementary
;
Growth Hormone*
;
Insects
;
Nucleopolyhedrovirus*
;
Plasmids
;
Polymerase Chain Reaction
;
Radioimmunoassay
;
Spodoptera
2.Gallbladder carcinoma: Regional lymph nodes metastases on CT scan.
Whi Youl CHO ; Sang Keun YOON ; Joong Wha PARK ; Young Ju KIM ; Ki Joon SUNG
Journal of the Korean Radiological Society 1993;29(3):444-447
CT scans of 23 patients with gallbladder carcinoma were retropectively reviewed to determine the incidence of lymphatic spread and to access the pattern of regional lymph node metastases. The lymphatic spread were noted in 74%(17/23). The involved patterns of regional lymph node metastases were nodes of porta hepatis 65%, portocaval nodes 41%, superior pancreaticoduodenal nodes 47%, posterior pancreaticoduodenal nodes 59%, nodes around the celiac trunk 35%, nodes around the superior mesenteric artery 29% and paraaortic nodes 35%. The findings suggested that the pattern of regional lumph node metastases in gallbladder carcinoma occurred along the normal lymphatic pathway of the gallbladder.
Gallbladder*
;
Humans
;
Incidence
;
Lymph Nodes*
;
Mesenteric Artery, Superior
;
Neoplasm Metastasis*
;
Tomography, X-Ray Computed*
3.Gallbladder carcinoma: Regional lymph nodes metastases on CT scan.
Whi Youl CHO ; Sang Keun YOON ; Joong Wha PARK ; Young Ju KIM ; Ki Joon SUNG
Journal of the Korean Radiological Society 1993;29(3):444-447
CT scans of 23 patients with gallbladder carcinoma were retropectively reviewed to determine the incidence of lymphatic spread and to access the pattern of regional lymph node metastases. The lymphatic spread were noted in 74%(17/23). The involved patterns of regional lymph node metastases were nodes of porta hepatis 65%, portocaval nodes 41%, superior pancreaticoduodenal nodes 47%, posterior pancreaticoduodenal nodes 59%, nodes around the celiac trunk 35%, nodes around the superior mesenteric artery 29% and paraaortic nodes 35%. The findings suggested that the pattern of regional lumph node metastases in gallbladder carcinoma occurred along the normal lymphatic pathway of the gallbladder.
Gallbladder*
;
Humans
;
Incidence
;
Lymph Nodes*
;
Mesenteric Artery, Superior
;
Neoplasm Metastasis*
;
Tomography, X-Ray Computed*
4.Sacrococcygeal Chordoma
Hyon Ju KIM ; Jae Do KIM ; Ho Yeon LEE ; Sung Keun SOHN
The Journal of the Korean Orthopaedic Association 1985;20(6):1207-1211
Sacrococcygeal chordoma is a rare malignant tumor which is believed to take its origin from remnants of the fetal notochord, and presents in the sacral hollow or occasionally posteriorly. The growth is leisurely and it is invasive rather than metastatic. In treatment, there is evidence that early diagnosis of sacrococcygeal chordoma followed by radical resection c palliative radiotherapy does provide the opportunity for cure. We have experienced two cases of sacrococcygeal chordoma, which were treated with one case of a complete surgical resection and the other case of only biopsy.
Biopsy
;
Chordoma
;
Early Diagnosis
;
Notochord
;
Radiotherapy
5.Pathogenesis of Anti-MAG Antibody Associated with Demyelinating Peripheral Neuropathy: Expression of Anti-MAG Antibody in Ebstein-Barr Virus Transformed Lymphocytes of Umbrical Cord.
Kwang Woo LEE ; Ji Soo KIM ; Sung Hyun LEE ; Keun Ho LEE ; In Soo JU
Journal of the Korean Neurological Association 1995;13(1):39-46
It is not unconimm that the monoclonal gammopathies occur in patients with demyelinating peripheral neuropathy. The IgM.-protein from those patients reacted with peripheral nerve myelin, which was first identified as the MAG (myelinassociated glycoprotein). In this study the authors tried to understand the pathogenetic mechanism of anti-MAG antibod by studying the expression of the anti MAG antibody in Epstein-Barr virus transformed lymphocytes of umbrical cord. The positive bands for anti-NMG antibody were found in 10 out of 320 sera of peripheral neuropathies by the thin layer chromatography of the glycolipids from bovine peripheral myelin. The positive anti-MAG expressions were found in 5 of 31 supernatant wells from EB virus transformed lymphocytes of umbrical cords, which tended to. Develop the antibody activity in the supernatants cultured more than ten days. The study indicates. In part that the anti-MAG antibody may be occurred by the autoimmune mechanism as the antibodies are expressed m the EB virus transformed lymphocytes which have never been exposed to foreign antigens so far However the automimune mechanism can be supported more by knowing the mcreased frequency of CD5 positive B cells in cases with high titer of anti-MAG antibodies.
Antibodies
;
B-Lymphocytes
;
Chromatography, Thin Layer
;
Glycolipids
;
Herpesvirus 4, Human
;
Humans
;
Lymphocytes*
;
Myelin Sheath
;
Paraproteinemias
;
Peripheral Nerves
;
Peripheral Nervous System Diseases*
6.Anesthetic management for the endoscopic sinus surgery of a patient with coexisting severe cervical spine ankylosing spondylitis and unruptured cerebral aneurysm: A case report.
Ju Young CHOI ; Ju Tae SOHN ; Hui Jin SUNG ; Il Woo SHIN ; Seong Ho OK ; Heon Keun LEE ; Young Kyun CHUNG
Korean Journal of Anesthesiology 2009;57(2):264-267
A 61-year-old man was admitted to the emergency room complaining of a severe left exophthalmos caused by frontal and ethmoid sinus mucoceles that were visualized on a brain computerized tomogram. In addition, he had coexisting ankylosing spondylitis with a 20 year duration that resulted in total fixation of the cervical spine and progressive thoracic kyphosis. An unruptured anterior communicating artery aneurysm was found incidentally on the cerebral angiogram. We report that the anesthetic management for endoscopic sinus surgery of a frontal sinus mucocele in a patient with coexisting severe cervical spine ankylosing spondylitis and an unruptured cerebral aneurysm requires a detailed preoperative assessment of the airway, cardiac, pulmonary, and neurologic system. This case highlights the need for careful measures to avoid rupturing the cerebral aneurysm by the increased blood pressure induced by endotracheal intubation and the infiltration of an epinephrine-containing local anesthetic.
Blood Pressure
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Brain
;
Emergencies
;
Ethmoid Sinus
;
Exophthalmos
;
Frontal Sinus
;
Humans
;
Intracranial Aneurysm
;
Intubation, Intratracheal
;
Kyphosis
;
Middle Aged
;
Mucocele
;
Spine
;
Spondylitis, Ankylosing
7.Bone Cement Augmentation of Short Segment Fixation for Unstable Burst Fracture in Severe Osteoporosis.
Hyeun Sung KIM ; Sung Keun PARK ; Hoon JOY ; Jae Kwang RYU ; Seok Won KIM ; Chang Il JU
Journal of Korean Neurosurgical Society 2008;44(1):8-14
OBJECTIVE: The purpose of this study was to determine the efficacy of short segment fixation following postural reduction for the re-expansion and stabilization of unstable burst fractures in patients with osteoporosis. METHODS: Twenty patients underwent short segment fixation following postural reduction using a soft roll at the involved vertebra in cases of severely collapsed vertebrae of more than half their original height. All patients had unstable burst fracture with canal compromise, but their motor power was intact. The surgical procedure included postural reduction for 2 days and bone cement-augmented pedicle screw fixations at one level above, one level below and the fractured level itself. Imaging and clinical findings, including the level of the vertebra involved, vertebral height restoration, injected cement volume, local kyphosis, clinical outcome and complications were analyzed. RESULTS: The mean follow-up period was 15 months. The mean pain score (visual analogue scale) prior to surgery was 8.1, which decreased to 2.8 at 7 days after surgery. The kyphotic angle improved significantly from 21.6+/-5.8degrees before surgery to 5.2+/-3.7degrees after surgery. The fraction of the height of the vertebra increased from 35% and 40% to 70% in the anterior and middle portion. There were no signs of hardware pull-out, cement leakage into the spinal canal or aggravation of kyphotic deformities. CONCLUSION: In the management of unstable burst fracture in patients with severe osteoporosis, short segment pedicle screw fixation with bone cement augmentation following postural reduction can be used to reduce the total levels of pedicle screw fixation and to correct kyphotic deformities.
Congenital Abnormalities
;
Follow-Up Studies
;
Humans
;
Kyphosis
;
Osteoporosis
;
Spinal Canal
;
Spine
8.Outcomes after Radiotherapy in Inoperable Patients with Squamous Cell Lung Cancer.
Sung Ja AHN ; Woong Ki CHUNG ; Byung Sik NAH ; Tack Keun NAM ; Young Chul KIM ; Kyung Ok PARK
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2001;19(3):216-223
PURPOSE: We evaluated retrospectively the outcomes of inoperable squamous cell lung cancer patients treated with radiotherapy to find out prognostic factors affecting survival. MATERIALS AND METHODS: Four hundred and eleven patients diagnosed as squamous cell lung cancer between November 1988 and December 1997 were the basis of this analyses. The planned dose to the gross tumor volume was ranged from 30 to 70.2 Gy. Chemotherapy was combined in 72 patients (17.5%) with the variable schedule and drug combination regimens. Follow-up period ranged from 1 to 113 months with the median of 8 months and survival status was identified in 381 patients (92.7%). Overall survival rate was calculated using the Kaplan-Meier method. RESULTS: Age ranged from 23 years to 83 years with the median 63 years. The male to female ratio was about 16:1. For all 411 patients, the median overall survival was 8 months and the 1-year survival rate (YSR), 2-YSR, and 5-YSR were 35.6%, 12.6%, and 3.7%, respectively. The median and 5-YSR were 29 months and 33.3% for Stage IA, 13 months and 6.3% for Stage IIIA, and 9 months and 3.4% for Stage IIIB, respectively( p=0.00). The median survival by treatment aim was 11 months in radical intent group and 5 months in palliative, respectively ( p=0.00). Of 344 patients treated with radical intent, median survival of patients (N=247) who received planned radiotherapy completely was 12 months while that of patients (N=97) who did not was 5 months ( p=0.0006). In the analyses of the various prognostic factors affecting to the survival outcomes in 247 patients who completed the planned radiotherapy, tumor location, supraclavicular LAP, SVC syndrome, pleural effusion, total lung atelectasis and hoarseness were statistically significant prognostic factors both in the univariate and multivariate analyses while the addition of chemotherapy was statistically significant only in multivariate analyses. The acute radiation esophagitis requiring analgesics was appeared in 49 patients (11.9%) and severe radiation esophagitis requiring hospitalization was shown in 2 patients (0.5%). The radiation pneumonitis requiring steroid medication was shown in 62 patients (15.1%) and severe pneumonitis requiring hospitalization was occurred in 2 patients (0.5%). During follow-up, 114 patients (27.7%) had progression of local disease with 10 months of median time to recur (range : 1~87 months) and 49 patients (11.9%) had distant failure with 7 months of median value (range : 1~52 months). Second malignancy before or after the diagnosis of lung cancer was appeared in 11 patients. CONCLUSION: The conventional radiotherapy in the patients with locally advanced squamous cell lung cancer has given small survival advantage over supportive care and it is very important to select the patient group who can obtain the maximal benefit and to select the radiotherapy technique that would not compromise the life quality in these patients.
Analgesics
;
Appointments and Schedules
;
Diagnosis
;
Drug Therapy
;
Esophagitis
;
Female
;
Follow-Up Studies
;
Hoarseness
;
Hospitalization
;
Humans
;
Lung Neoplasms*
;
Lung*
;
Male
;
Multivariate Analysis
;
Neoplasms, Second Primary
;
Pleural Effusion
;
Pneumonia
;
Pulmonary Atelectasis
;
Quality of Life
;
Radiation Pneumonitis
;
Radiotherapy*
;
Retrospective Studies
;
Survival Rate
;
Tumor Burden
9.The Role of Radiation Therapy on Local Recurrence of Rectal Cancer.
Woong Ki CHUNG ; Sung Ja AHN ; Taek Keun NAM ; Byung Sik NAH ; Young Jin KIM
Journal of the Korean Society for Therapeutic Radiology 1992;10(2):205-212
Ninety five patients of rectal cancer treated with surgery with or without adjuvant radiation therapy since January 1982 to December 1990 at the Chonnam University Hospital were analysed retrospectively regarding local failure. Of these 95 patients 72 patients were treated with surgery alone and remaining 23 patients received postoperative radiation therapy to pelvis. There were 45 men and 50 women with 53 years of median age. Minimum tool low-up period was 19 months and Median was 47 months (range, 19-125 months). Kaplan-Meier method was used to calculate actuarial risk of local recurrence and survival rate. Comparison between two groups was evaluated by Log rank test. Of total 95 patients twenty seven patients (28.4%) developed local recurrence and 13 patients(17.3%) developed local and distant metastasis oncomitantly. Eighty nine percent(24/27) of patients developed local recurrence within 24 months. Pelvic organ adjacent to the primary tumor area was the most common site of initial local recurrence. Of 72 patients treated with surgery alone local recurrence developed in 24 patients. Of 17 patients with stage A and B1 (Gunderson-Sosin modification of Dukes' staging system) 6 patients experienced local recurrence(31.2%). The local recurrence rate of B2 and B3 group was 29.9%(7/33) and that of C2 and C3 was 54.7%(l1/19), respectively. There was statistically significant difference between two groups(p< 0.05). Of 23 patients treated with definitive surgery and radiation therapy 10%(1/10) ecurred in B2 and B3 patients. This was slightly lower than C2 and C3 patients(22.2%, 2/10) of similar policy, but revealed no statistically significant difference(p>0.05). In the patients of B2+3 local failure rate decreased when radiation therapy was added(29.9% vs 10%, p>0.05) and also similar results in C2+3 group(34.7% vs 22.2%, p<0.05). The local failure rate in relation to distance from the anal verge had no statistically significant difference.
Female
;
Humans
;
Jeollanam-do
;
Male
;
Neoplasm Metastasis
;
Pelvis
;
Rectal Neoplasms*
;
Recurrence*
;
Retrospective Studies
;
Survival Rate
10.Results of Radiation Therapy in Early Glottic Cancer.
Sung Ja AHN ; Woong Ki CHUNG ; Taek Keun NAM ; Byung Sik NAH
Journal of the Korean Society for Therapeutic Radiology 1992;10(2):181-186
A retrospective analysis was undertaken for 22 patients with early glottic cancer (T1N0M0;17, T2N0M0;5) who completed curative radiotherapy at the Department of Therapeutic Radiology, Chonnam University Hospital between November 1985 and December 1990. Median follow-up period was 39 months. The 3 year actuarial survival rate of T1,T2 was 81% and 80%, respectively. Three patients(13%) shewed second malignant tumors and the site of the new primary was esophagus in two patients and lung in the other one. They were excluded from the local control analysis. The local control rate of T1,T2 group was 66% and 50%, respectively. The surgical salvage rate and the ultimate local control rate of T1 group was 80%(4/5) and 93%, and that of T2 group was 100%(2/2) and 75%, respectively. The local control rates of T1 stage were evaluated according to the various parameters. The local control rate of the superficial and exophytic lesion was better than that of the ulcerative and infiltrative one, and the involvement of anterior commissure was not seemed to be adverse prognostic factor. But the protracted treatment time showed the adverse effect on the local control of the disease. All of the eleven patients controlled by primary radiation therapy have maintained their voice well without any significant complication.
Esophagus
;
Follow-Up Studies
;
Humans
;
Jeollanam-do
;
Lung
;
Radiation Oncology
;
Radiotherapy
;
Retrospective Studies
;
Survival Rate
;
Ulcer
;
Voice