1.Phase II Study of Cisplatin, Ifosfamide . Paclitaxel (CIP) as Neoadjuvant Chemotherapy in Patients with Locally Advanced Cervical Carcinoma.
Seog Beom YOON ; Jong Kug LEE ; Seob JEON ; Ji Yeon LEE ; Seung Do CHOI ; Dong Han BAE
Korean Journal of Obstetrics and Gynecology 2000;43(10):1763-1768
No abstract available.
Cisplatin*
;
Drug Therapy*
;
Humans
;
Ifosfamide*
;
Paclitaxel*
2.GDC Embolization of Wide-necked Cerebral Aneurysms Using Balloon-Assisted Technique.
Seong Ho PARK ; Seung Kug BAIK ; Dong Youl RHEE ; Sun Mi BAIK ; Han Yong CHOI ; Bong Gi KIM
Journal of the Korean Radiological Society 1999;41(2):221-227
PURPOSE: The main factor limiting endovascular treatment of intracranial aneurysms is the shape of the a-neurysmal sac, especially the width of the neck. We describe an early experience and technical aspects of treating wide-necked cerebral aneurysm using a Guglielmi detachable coil (GDC) and simultaneous application of a temporary balloon. MATERIALS AND METHODS: Four cases of unruptured wide-necked cerebral aneurysm were treated with GDC, with simultaneous application of a temporary balloon. Patients were aged between 29 and 49 years. On admission, clinical presentation was subarachnoid hemorrhage (SAH) in all cases. Hunt and Hess grade was II in two cases, III in one case, and traumatic SAH in one case. In all patients angiography revealed an asymptomatic a-neurysm after rupture of another aneurysm or traumatic SAH. The aneurysms were occluded with GDC-10, and a Cirrus balloon occlusion system was used simultaneously. All procedures were performed under endo-tracheal general anesthesia and systemic heparinization. RESULTS: All cases were treated successfully, without parent artery compromise. The occlusion rate at the end of the procedure was total in three cases and subtotal in one. In one case a heparin-related hematoma occurred during post-procedural treatment and the patient eventually expired. One patient underwent follow-up angiography after 6 months, and the coil was not changed. CONCLUSION: An aneurysm may not be completely occluded, but with regard to coil compaction and parent artery preservation, the technique is an attractive alternative.
Anesthesia, General
;
Aneurysm
;
Angiography
;
Arteries
;
Balloon Occlusion
;
Follow-Up Studies
;
Hematoma
;
Heparin
;
Humans
;
Intracranial Aneurysm*
;
Neck
;
Parents
;
Rupture
;
Subarachnoid Hemorrhage
3.A Case of Multiple Micronodular Pneumocyte Hyperplasia of the Lung in a Man with Tuberous Sclerosis.
Dong Hyuk NAM ; Yoon Jung CHOI ; Ju Hyun LEE ; Hyoung Jung NA ; Dong Hwan KIM ; Chong Ju KIM ; Sun Min LEE ; Yong Kug HONG ; Chang Hoon HAN
Tuberculosis and Respiratory Diseases 2008;64(5):369-373
Tuberous sclerosis (TS) is an autosomal dominant disorder that is characterized by cutaneous lesions, seizures, mental retardation and hamartomas in various organs including the skin, kidney and brain. Pulmonary involvement is extremely rare, and occurs in approximately 0.1 to 1% of TS cases. Recent reports have indicated multiple micronodular pneumocyte hyperplasia (MMPH) as another rare form of pulmonary involvement of tuberous sclerosis. We report a case of a 35 year-old-male patient who had no pulmonary symptoms but showed multinodular pulmonary shadows on his chest CT scan. The patient was finally diagnosed with TS with MMPH of the lung. MMPH does not appear to have any malignant potential but the clinical significance of MMPH in TS patients is unknown.(Tuberc Respir Dis 2008;64:369-373)
Brain
;
Hamartoma
;
Humans
;
Hyperplasia
;
Intellectual Disability
;
Kidney
;
Lung
;
Pneumocytes
;
Seizures
;
Skin
;
Thorax
;
Tuberous Sclerosis
4.A Pilot Study as the Biochip Based Gene Expression Profiling in Patients with Hyperplastic Colonic Polyp.
Ung Chae PARK ; Kyong Rae KIM ; Moo Kyung SEONG ; Joon Ho WANG ; Jae Dong LEE ; Sang Yoon KIM ; Seung Hwa PARK ; Dong Kug CHOI ; Chan Gil KIM
Journal of the Korean Society of Coloproctology 2006;22(4):241-249
PURPOSE: A microarray-based gene expression analysis may offer a rapid and efficient means for assessing. However, the molecular genetic change in nonneoplastic colonic polyp is still poorly understood. To elucidate the molecular genetic basis, We now report the results of our initial microarray data to analyze the genom pattern in patients with hyperplastic polyps of colon. METHODS: 36 samples (18 pairs of colonic polyps and normal colonic mucosa were) harvested from colonoscopic biopsy. 3 of 18 colonic polyps were pathologically identified as the serrated type of hyperplastic polyp. We used the oligonucleotide microarray technique for analysis of the expression profiles of serrated polyps and normal mucosa. For the identification of differentially expressed genes, SAM (Significance Analysis of Microarray) package method was used. The result was analysed by using global normalization, intensity dependent normalization and block-wise normalization. RESULTS: Polypectomy specimens microscopically showed the pathologically characteristic serration with a saw-teeth like luminal border (branching of the crypts). 8 genes including RHEB (Ras homolog enriched in brain), WASF2 (WAS protein family, member 2), TYRP1 (Tyrosinase-related protein 1), VSX1 (Visual system homeobox 1 homolog), ROS1 (V-ros UR2 sarcoma virus oncogene homolog 1), WEE1 (WEE1 homolog), TEC (Tec protein tyrosine kinase), TNFRSF10A (Tumor necrosis factor receptor superfamily, member 10a) in serrated polyp were up-regulated by more than 10 times as compared with normal colonic mucosa. On the other hand, 6 genes including SIAT7D (Sialyltransferase 7D), DRD1 (Dopamine receptor D1), SIAT1 (Sialyltransferase 1), ITSN1 (Intersectin 1), TNFSF12 (Tumor necrosis factor superfamily, member 12), CHES1 (Checkpoint suppressor 1) were down-regulated by less than a tenth of the expression as compared with normal colonic mucosa. CONCLUSIONS: Serrated polyps as a subset of hyperplastic colonic polyps were analyzed with the oligonucleotide microarray technique. We authors could identify 14 genes (8 up-regulated and 6 down-regulated genes) that showed the significant change of expression as compared with normal colonic mucosa. Specifically, we believe that current study will serve as a fundamental base to offer a bioinformative characteristics of the serrated colonic polyp in future clinical applications.
Biopsy
;
Colon*
;
Colonic Polyps*
;
Gene Expression Profiling*
;
Gene Expression*
;
Genes, Homeobox
;
Hand
;
Humans
;
Molecular Biology
;
Mucous Membrane
;
Necrosis
;
Oligonucleotide Array Sequence Analysis
;
Oncogenes
;
Phenobarbital
;
Pilot Projects*
;
Polyps
;
Sarcoma
;
Tyrosine
5.Acquired Idiopathic Sideroblastic Anemia: A clinical study of 15 patients.
Dong Gun SHIN ; Ji Yong CHOI ; Sung Kug CHANG ; Sang Chae LEE ; Jyung Dong BAE ; Sang Kyun SOHN ; Kyu Bo LEE ; Kee Suk WHANG
Korean Journal of Hematology 1997;32(3):360-366
BACKGROUND: Acquired idiopathic sideroblastic anemia (AISA) is a heterogeneous condition. Most instances, involving only the erythroid line, are benign disease with a longer survival and a low propensity for evolution into acute leukemia. A subset of patients have severe clinical course and evidence of other cell line involvement at presentation, may develop the emergence of blast cells and evolution into acute leukemia. In an attempt to identify the natural history and the risk factors for the development of acute leukemia, the clinical, hematological and outcome data were studied in the patients with AISA. METHODS: We reviewed retrospectively the medical records of 15 patients of AISA treated at the Catholic University of Taegu-Hyosung and Kyungpook National University Hospital from March 1989 to December 1995. RESULTS: The median age at diagnosis was 41 years and the male to female ratio was 8 : 7. On bone marrow examination, erythroid abnormalities were prominent in all cases, 5 patients also showed involvement of the granulocytic and/or megakaryocytic cell lines (AISA with myelodysplastic features, AISA-M). The median follow-up duration was 32 months. Transfusion dependence occurred in 11 of 16 cases. Progression towards refractory anemia with excess of blasts or acute leukemia (M2) was observed in two patients with AISA-M after follow-up period of 16 months and 24 months, respectively. Infections and hemorrhages were causes of death in 3 patients with AISA-M but not in patients with dyserythropoiesis only (AISA-erythroid, AISA-E). CONCLUSIONS: Most patients with AISA have a relatively benign course with prolonged survival after the onset of anemia. Patients with features of dysgranulopoiesis and/or dysmegakaryopoiesis in addition to dyserythropoiesis at presentation were increased risk of transformation to refractory anemia with excess of blasts or acute leukemia and shorter surtival. But further study of larger numbers of patients and longer follow-up may be warranted.
Anemia
;
Anemia, Refractory, with Excess of Blasts
;
Anemia, Sideroblastic*
;
Bone Marrow Examination
;
Cause of Death
;
Cell Line
;
Diagnosis
;
Female
;
Follow-Up Studies
;
Gyeongsangbuk-do
;
Hemorrhage
;
Humans
;
Leukemia
;
Male
;
Medical Records
;
Natural History
;
Retrospective Studies
;
Risk Factors
6.Gene Expression Profiling using Oligonucleotide Microarray in Atrophic Gastritis and Intestinal Metaplasia.
Kyong Rae KIM ; Soo Youn OH ; Ung Chae PARK ; Joon Ho WANG ; Jae Dong LEE ; Hyuk Jung KWEON ; Sang Yoon KIM ; Seung Hwa PARK ; Dong Kug CHOI ; Chan Gil KIM ; Seongc Ho CHOI
The Korean Journal of Gastroenterology 2007;49(4):209-224
BACKGROUND/AIMS: The atrophic gastritis with intestinal metaplasia of gastric mucosa has been considered to be the major factor of carcinogenesis in the stomach. However, the key molecules are still poorly understood. To elucidate the molecular genetic basis, we report the results of our initial microarray data to analyze the genome pattern in patients with atrophic gastritis and intestinal metaplasia of the stomach. METHODS: We used oligonucleotide microarray technique to evaluate the gene expression profiles in atrophic gastritis with intestinal metaplasia, in comparison with those of normal mucosa. For the identification of differentially expressed genes, Significance Analysis of Microarrays (SAM) package method was used. The results were analyzed using global normalization, intensity dependent normalization, and box plot normalization. RESULTS: Eight genes including FABP, REG, OR6C1, MEP1, SLC6A1, SI, Mucin 1, and RAB23 in mucosa of atrophic gastritis and intestinal metaplasia were up-regulated by more than 10 times as compared with normal gastric mucosa. Only one gene, LOC44119 was down-regulated by more than 10 times of the expression as compared with normal gastric mucosa. In respect to the expression of known genes related to gastric carcinogenesis, 8 genes including FN1, SRMS, TP53, TP53IMP2, TP53I3, FGFR4, TGFB1, and TGFA showed up- and down-regulations more than 2 folds in expression pattern. CONCLUSIONS: We could identify a total genome pattern in patient with atrophic gastritis and intestinal metaplasia using oligonucleotide microarray. We believe that the current results will serve as a fundamental bioinformative basis for clinical applications in diagnosis and treatment of gastric cancer and precancerous lesion in the future.
Down-Regulation
;
Gastritis, Atrophic/*genetics/metabolism
;
Gene Expression Profiling
;
Humans
;
Intestines/*metabolism/*pathology
;
Metaplasia/genetics/metabolism
;
Microarray Analysis
;
Tumor Markers, Biological/genetics/metabolism
;
Up-Regulation
7.Feasibility, Safety, and Follow-up Angiographic Results of Endovascular Treatment for Non-Selected Ruptured Intracranial Aneurysms Under Local Anesthesia with Conscious Sedation
Jongsoo KANG ; Chul Hoo KANG ; Jieun ROH ; Jeong A YEOM ; Dong Hyun SHIM ; Young Soo KIM ; Sang Won LEE ; Young Soo KIM ; Kee Hong PARK ; Chang Hun KIM ; Soo Kyoung KIM ; Nack Cheon CHOI ; Oh Young KWON ; Heeyoung KANG ; Seung Kug BAIK
Journal of Neurocritical Care 2018;11(2):93-101
BACKGROUND: At most centers, general anesthesia (GA) has been preferred for endovascular treatment (EVT) of ruptured intracranial aneurysms (RIAs). In this study, we analyzed procedural results, clinical outcomes, and follow-up angiographic findings for patients undergoing EVT for RIA under local anesthesia (LA) with conscious sedation (CS). METHODS: We retrospectively evaluated 308 consecutive patients who underwent EVT for RIAs at a single institution between June 2009 and February 2017. EVT under LA with CS was considered for all patients with aneurysmal subarachnoid hemorrhage, regardless of Hunt and Hess (HH) scale score. RESULTS: EVT was performed for 320 aneurysms in 308 patients with subarachnoid hemorrhages. The mean patient age was 55.5±12.6 years. Moderate (III) and poor (IV, V) HH grades were observed in 75 (24.4%) and 77 patients (25%), respectively. Complete occlusion immediately after EVT was achieved for 270 (84.4%) of 320 aneurysms. Thromboembolic complications and intraprocedural ruptures occurred in 25 (7.8%) and 14 cases (4.3%), respectively. The morbidity rate at discharge (as defined by a modified Rankin scale score of 3 or greater) was 27.3% (84/308), while the mortality rate was 11.7% (36/308). Follow-up angiographic results were available for 210 (68.1%) of 308 patients. Recanalization was observed in 64 (29.3%) of 218 aneurysms in 210 patients. CONCLUSION: Based on our experience, EVT for RIAs under LA with CS was feasible, regardless of the clinical grade of the subarachnoid hemorrhage. Complication rates and follow-up angiographic results were also comparable to those observed when GA was used to perform the procedure.
Anesthesia, General
;
Anesthesia, Local
;
Aneurysm
;
Conscious Sedation
;
Endovascular Procedures
;
Follow-Up Studies
;
Humans
;
Intracranial Aneurysm
;
Mortality
;
Retrospective Studies
;
Rupture
;
Subarachnoid Hemorrhage
8.Pathogenicity of severe fever with thrombocytopenia syndrome virus in mice regulated in type I interferon signaling Severe fever with thrombocytopenia and type I interferon
Seok-Chan PARK ; Jun Young PARK ; Jin Young CHOI ; Sung-Geun LEE ; Seong Kug EO ; Jae-Ku OEM ; Dong-Seob TARK ; Myungjo YOU ; Do-Hyeon YU ; Joon-Seok CHAE ; Bumseok KIM
Laboratory Animal Research 2020;36(4):293-302
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging zoonotic disease, which causes high fever, thrombocytopenia, and death in humans and animals in East Asian countries. The pathogenicity of SFTS virus (SFTSV) remains unclear. We intraperitoneally infected three groups of mice: wild-type (WT), mice treated with blocking anti-type I interferon (IFN)-α receptor antibody (IFNAR Ab), and IFNAR knockout (IFNAR−/−) mice, with four doses of SFTSV (KH1, 5 × 105 to 5 × 102 FAID50). The WT mice survived all SFTSV infective doses. The IFNAR Ab mice died within 7 days post-infection (dpi) with all doses of SFTSV except that the mice were infected with 5 × 102 FAID50 SFTSV. The IFNAR−/− mice died after infection with all doses of SFTSV within four dpi. No SFTSV infection caused hyperthermia in any mice, whereas all the dead mice showed hypothermia and weight loss. In the WT mice, SFTSV RNA was detected in the eyes, oral swabs, urine, and feces at 5 dpi. Similar patterns were observed in the IFNAR Ab and IFNAR−/− mice after 3 dpi, but not in feces. The IFNAR Ab mice showed viral shedding until 7 dpi. The SFTSV RNA loads were higher in organs of the IFNAR−/− mice compared to the other groups. Histopathologically,coagulation necrosis and mononuclear inflammatory cell infiltration in the liver and white pulp atrophy in the spleen were seen as the main lesions in the IFN signaling lacking mice. Immunohistochemically, SFTSV antigens were mainly detected in the marginal zone of the white pulp of the spleen in all groups of mice, but more viral antigens were observed in the spleen of the IFNAR−/− mice. Collectively, the IFN signaling-deficient mice were highly susceptible to SFTSV and more viral burden could be demonstrated in various excreta and organs of the mice when IFN signaling was inhibited.
9.Pathogenicity of severe fever with thrombocytopenia syndrome virus in mice regulated in type I interferon signaling Severe fever with thrombocytopenia and type I interferon
Seok-Chan PARK ; Jun Young PARK ; Jin Young CHOI ; Sung-Geun LEE ; Seong Kug EO ; Jae-Ku OEM ; Dong-Seob TARK ; Myungjo YOU ; Do-Hyeon YU ; Joon-Seok CHAE ; Bumseok KIM
Laboratory Animal Research 2020;36(4):293-302
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging zoonotic disease, which causes high fever, thrombocytopenia, and death in humans and animals in East Asian countries. The pathogenicity of SFTS virus (SFTSV) remains unclear. We intraperitoneally infected three groups of mice: wild-type (WT), mice treated with blocking anti-type I interferon (IFN)-α receptor antibody (IFNAR Ab), and IFNAR knockout (IFNAR−/−) mice, with four doses of SFTSV (KH1, 5 × 105 to 5 × 102 FAID50). The WT mice survived all SFTSV infective doses. The IFNAR Ab mice died within 7 days post-infection (dpi) with all doses of SFTSV except that the mice were infected with 5 × 102 FAID50 SFTSV. The IFNAR−/− mice died after infection with all doses of SFTSV within four dpi. No SFTSV infection caused hyperthermia in any mice, whereas all the dead mice showed hypothermia and weight loss. In the WT mice, SFTSV RNA was detected in the eyes, oral swabs, urine, and feces at 5 dpi. Similar patterns were observed in the IFNAR Ab and IFNAR−/− mice after 3 dpi, but not in feces. The IFNAR Ab mice showed viral shedding until 7 dpi. The SFTSV RNA loads were higher in organs of the IFNAR−/− mice compared to the other groups. Histopathologically,coagulation necrosis and mononuclear inflammatory cell infiltration in the liver and white pulp atrophy in the spleen were seen as the main lesions in the IFN signaling lacking mice. Immunohistochemically, SFTSV antigens were mainly detected in the marginal zone of the white pulp of the spleen in all groups of mice, but more viral antigens were observed in the spleen of the IFNAR−/− mice. Collectively, the IFN signaling-deficient mice were highly susceptible to SFTSV and more viral burden could be demonstrated in various excreta and organs of the mice when IFN signaling was inhibited.
10. Attenuation of lipopolysaccharide-induced neuroinflammatory events in BV-2 microglial cells by Moringa oleifera leaf extract
Gothai SIVAPRAKASAM ; Katyakyini MUNIANDY ; Palanisamy ARULSELVAN ; Palanivel GANESAN ; Shin-Young PARK ; Duk-Yeon CHO ; Joon-So KIM ; Palanivel GANESAN ; Dong-Kug CHOI ; Palanisamy ARULSELVAN ; Palanisamy ARULSELVAN ; Dong-Kug CHOI
Asian Pacific Journal of Tropical Biomedicine 2019;9(3):109-115
Objective: To determine the anti-neuroinflammatory activity of Moringa oleifera leaf extract (MLE) under lipopolysaccharide stimulation of mouse murine microglia BV2 cells in vitro. Methods: The cytotoxicity effect of MLE was investigated by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl-tetrazolium bromide assay. The inflammatory response of BV-2 cells were induced with lipopolysaccharide. The generation of nitric oxide levels was determined by using Griess assay and the level of pro-inflammatory cytokines (IL-1β, IL-6 and TNF-α) was evaluated by ELISA kit. The expression of iNOS, COX-2 as well as IκB-α was carried out by immunoblot analysis. Results: MLE reduced the nitric oxide production in concentration-dependent manner, and maintained the viability of BV-2 microglial cells which indicated absence of toxicity. In addition, MLE repressed the activation of nuclear factor kappa B by arresting the deterioration of IκB-α, consequently resulted in suppression of cytokines expression such as COX-2 and iNOS. Conclusions: MLE inhibitory activities are associated with the inhibition of nuclear factor kappa B transcriptional activity in BV2 microglial cells. Thus MLE may offer a substantial treatment for neuroinflammatory diseases.