1.DNA-mediated Immunization Methods with the HCMV gB for the Induction of Neutralizing Antibodies to HCMV in BALB/c Mice.
Sang Jun JEON ; Ye Jin KWON ; Eun Suk PARK ; Chung Gyu PARK ; Eung Soo HWANG ; Chang Yong CHA
Journal of Bacteriology and Virology 2001;31(4):353-360
No abstract available.
Animals
;
Antibodies, Neutralizing*
;
Immunization*
;
Mice*
2.Treatment of the Buttonhole Deformity of Fingers
Chang Soo KANG ; Kwang Soon SONG ; Young Sik PYUN ; Sung Won SOHN ; Young Chul KWON ; Gyu Dong KIM
The Journal of the Korean Orthopaedic Association 1985;20(4):708-712
A buttonhole deformity of the finger is characterized by flexion of the pmximal interphalangeal joint and hyperextension of the terminal interphalangeal joint. When the central slip of the extensor tendon and the triangular ligament are ruptured,(or severed) on the base of the middle phalanx, buttonhole deformity will result.This article is based on clinical and follow up studies of 5 patients with buttonholedeformities. Five cases were treated by the modified Littler method and were followed from 4 months to 24 months postoperatively and good results were obtained in all cases.
Congenital Abnormalities
;
Fingers
;
Follow-Up Studies
;
Humans
;
Joints
;
Ligaments
;
Methods
;
Tendons
3.Synovial Chondromatosis
Chang Soo KANG ; Kwang Soon SONG ; Young Sik PYUN ; Sung Won SHON ; Young Chul KWON ; Gyu Dong KIM
The Journal of the Korean Orthopaedic Association 1985;20(5):967-973
Synovial chondromatosis is an uncommon benign lesion characterized by metaplastic cartilage formation within the synovial connective tissue which disintegrates into the joint and continues to grow. Of the eight cases of synovial chondromatosis seen by the authors, three cases involved the knee, two of these were bilateral, three cases involved the elbow, one the hip joint and one the proximal phalanx of the right middle finger. The diagnosis of synovial chondroamtosis was made by histopathological findings of the excised mass. Most synovial chondromatosis cases obtained favorable results by removing masses from the joint and at the same time performing a partial synovectomy, except one case in which degenerative arth ritis had developed proeoperatively.
Cartilage
;
Chondromatosis, Synovial
;
Connective Tissue
;
Diagnosis
;
Elbow
;
Fingers
;
Hip Joint
;
Joints
;
Knee
4.Intrahepatic Cholangiocarcinoma: Gross Appearance and Corresponding Pathologic and Radiologic Features.
Kwon Ha YOON ; Chang Guhn KIM ; Moon Gyu LEE ; Hyun Kwon HA ; Jae Hoon LIM ; Yong Ho AUH
Journal of the Korean Radiological Society 1999;40(5):907-913
PURPOSE: To assess the clinical and pathologic features of each type of intrahepatic cholangiocarcinoma,which is divided into three types according to gross appearance, and to determine the efficacy of CT in detectingthis tumor. MATERIALS AND METHODS: The pathologic and CT features of 53 surgically proven cases of intrahepaticcholangio-carcinoma were reviewed. On the basis of their gross appearance, the tumors were divided into threetypes, as follows: mass forming (n=33), periductal infiltrating (n=6), and intraductal growth type (n=14). CTscans were analyzed for sensitivity of detection and correlation between a tumors appearance and itshistopathology. RESULTS: The most common histopathologic feature of mass forming and periductal infiltrating typewas tubu-lar adenocarcinoma, while in the intraductal growth type, papillary adenocarcinoma (100%) was common.With regard to pattern of tumor spread, intrahepatic and lymph node metastasis were more common in the massforming and periductal infiltrating type than in the intraductal growth type. CT findings including intra-hepaticmass, ductal wall thickening or intraductal mass associated with segmental dilatation of intrahepataic bile ducts,corresponded with these morphologic types. CONCLUSION: This classification according to gross appearance is ofconsiderable value when interpreting the pathologic features of intrahepatic cholangiocarcinoma. CT seems to be auseful modality for the detection of tumors and may be consistent with their gross morphologic findings.
Adenocarcinoma
;
Adenocarcinoma, Papillary
;
Bile
;
Cholangiocarcinoma*
;
Classification
;
Dilatation
;
Lymph Nodes
;
Neoplasm Metastasis
5.Incidence of Proximal Colon Adenoma According to Distal Colon Adenoma Characteristics.
Chang Kwon HONG ; June Sung LEE ; Chang Il KWON ; Kyung Chul KIM ; Sung Pyo HONG ; Seong Gyu HWANG ; Pil Won PARK ; Kyu Sung LIM
Korean Journal of Gastrointestinal Endoscopy 2000;21(3):710-716
BACKGROUND/AIMS: The aim of this study was to examine the incidence of proximal colon adenoma according to characteristics of distal colon adenoma. METHODS: Ninety-two colon adenoma patients who underwent total colonoscopy and endoscopic polypectomy were analyzed retrospectively. Adenoma was classified as proximal when located in proximal to splenic flexure. The advanced adenoma was defined as an adenoma larger than 10 mm or any size with a villous component or severe dysplasia. RESULTS: The incidence of proximal adenoma was increased significantly in those with old age (odds ratio (OR)=3.3), villous (OR=5.3) or dysplastic histology (OR=8.1) or the presence of advanced distal adenoma (OR=3.4). However, the incidence of advanced proximal adenoma was increased only in those with old age (OR=11.2). Nineteen in thirty-nine (48.7%) patients with proximal colon adenoma did not have distal colon adenoma. CONCLUSIONS: Various characteristics of distal colon adenoma couldn't exactly predict the presence of synchronous proximal adenoma and a greater percentage of subjects with proximal adenoma didn't have distal adenoma. So, colonoscopy could be a standard method for colon cancer screening in Korea.
Adenoma*
;
Colon*
;
Colon, Transverse
;
Colonic Neoplasms
;
Colonoscopy
;
Humans
;
Incidence*
;
Korea
;
Mass Screening
;
Retrospective Studies
;
Sigmoidoscopy
6.Cerebral Salt Wasting Syndrome Associated with Pseudomonas Meningitis ccurred after Removal of Pituitary Adenoma: A Case Report.
Kwang Gik KO ; Jong Pil EUN ; Yong Seog KIM ; Soong Hee LEE ; Dong Gyu SHIN ; Chang Young KWON
Journal of Korean Neurosurgical Society 1999;28(5):726-
The authors report a case of cerebral salt wasting(CSW) syndrome followed by diabetes insipidus and meningitis after transsphenoidal approach for pituitary adenoma. Fluid and electrolyte imbalance occurs occasionally in neurosurgical patients due to DI or SIADH, however, CSW is different disease entity and the methods of treatment are different from those of DI or SIADH. A number of studies in recent years have shown that hyponatremia in many patients with intracranial disease might actually be caused by CSW in which a renal loss of sodium leads to hyponatremia and massive urinary water loss. CSW of this patient was resolved by fluid and salt replacement after 6 months.
Diabetes Insipidus
;
Humans
;
Hyponatremia
;
Inappropriate ADH Syndrome
;
Meningitis*
;
Meningitis, Bacterial
;
Pituitary Neoplasms*
;
Pseudomonas*
;
Sodium
;
Wasting Syndrome*
7.Preliminary Study on Effectiveness of Dexamethasone-Soaked Gelatin Sponges for Reducing Pain after Lumbar Microdiscectomy: A Randomized Controlled Trial.
Dong Ah SHIN ; Tae Sik GONG ; Dong Gyu SHIN ; Chang Young KWON ; Hyoung Ihl KIM
Journal of Korean Neurosurgical Society 2006;39(1):11-15
OBJECTIVE: A prospective, randomized, controlled clinical study is performed to verify the effectiveness of epidural dexamethasone-soaked gelatin sponges to reduce postoperative pain following lumbar microdiscectomy. METHODS: Twenty-three patients (10 men and 13 women) undergoing lumbar microdiscectomy were included. Five pieces of gelatin sponge measuring 1 x 1 cm (Gelfoam; Pharmacia & Upjohn, Kalamazoo, MI, USA), soaked with either 5mg dexamethasone or an equal amount (2 mL) of saline, were left on the decompressed nerve root after unilateral hemilaminectomy, flavectomy and discectomy. RESULTS: Subjective visual analog scale(VAS) scores of leg pain in the dexamethasone group on the first, third and fifth postoperative days (2.5, 2.5, 1.7, respectively) were significantly lower than in the control group (5.0, 4.8, 3.6) ( P<0.05). No side effects related to the dexamethasone-soaked gelatin sponges were observed. CONCLUSION: The intraoperative application of dexamethasone-soaked gelatin sponges during lumbar microdiscectomy can provide effective postoperative analgesia without complications.
Analgesia
;
Dexamethasone
;
Diskectomy
;
Gelatin*
;
Humans
;
Leg
;
Male
;
Pain, Postoperative
;
Porifera*
;
Prospective Studies
8.Effect of Human Cytomegalovirus ( HCMV ) Replication on the Production of Alkaline Phosphatase in Osteosarcoma Cell Line ( Saos - 2 ).
Eung Soo HWANG ; Ye Jin KWON ; Eun Suk PARK ; Chung Gyu PARK ; Chang Yong CHA
Journal of Bacteriology and Virology 2002;32(1):93-98
HCMV infection can evoke the broad spectrum of symptoms, which may be caused by the infection of responsible cell types. It is important to identify the cell types to be infected and replicated with HCMV infection for characterizing the property of HCMV infection and symptoms. Bone marrow stroma consists of heterogeneous cells, which have many cellular functions. This study was performed to verify the infectivity of HCMV to osteoblasts using the osteogenic sarcoma cell line, Saos-2, and the effect of HCMV infection to them on the cellular function. Immediate-early antigens, IE1 and IE2, were detected from 1 day postinfection (d.p.i.), and early (ppUL44) and late (gB) antigen were detected from 2 d.p.i. by the immunoperoxidase staining. All the antigens were expressed as far as observed (9 days). It was found that the virus titer in the culture supernatant and the cell pellet were 150 to 2,200 pfu/ml and 50 to 800 pfu/ml, respectively, after 4 days when the cells were infected with 2 m.o.i. Alkaline phosphatase production in Saos-2 cells infected with the different amount of HCMV was decreased to 8 to 15%, 31 to 47%, and 11 to 52% on 4, 6, and 11 d.p.i., respectively, as compared with mock-infected cells. This result suggested that HCMV could replicate in some bone marrow stromal cells and disturb the cellular function such as production of alkaline phosphatase.
Alkaline Phosphatase*
;
Bone Marrow
;
Cell Line*
;
Cytomegalovirus*
;
Humans*
;
Mesenchymal Stromal Cells
;
Osteoblasts
;
Osteosarcoma*
;
Permissiveness
;
Viral Load
9.An Integrated Database and Web Service for Microbial Resources at KACC.
Chang Kug KIM ; Young Ah JEON ; Gyu Taek CHO ; Soon Wo KWON ; Yong Hwan KIM ; Seung Beom HONG
Genomics & Informatics 2009;7(1):41-45
The Korean Agricultural Culture Collection (KACC) has developed a web-based system to provide an integrated database with information updates about microbial resources. This integrated database consists of 5 major functions and contains general information, which includes identification numbers, culture media composition, image information, DNA sequences, patent information, and general forms for ordering and depositing microorganisms. In 2008, KACC started providing characterization information. KACC maintains 9,801 cultures of microorganisms, including 3,296 strains of bacteria, 4,734 fungi, 784 actinomycetes, 64 yeasts, and 923 others.
Actinobacteria
;
Bacteria
;
Base Sequence
;
Culture Media
;
Fungi
;
Yeasts
10.Radiologic Findings of Malignant Retroperitoneal Fibrosis.
Yu Jin CHANG ; Hae Kyung LEE ; Hyung Hwan KIM ; Jang Gyu CHA ; Hyun Sook HONG ; Gui Hyang KWON ; Deuk Lin CHOI
Journal of the Korean Radiological Society 1997;37(5):899-904
PURPOSE: To evaluate the radioloic findings of malignant retroperitoneal fibrosis. MATERIALS AND METHODS: Post-contrast CT (n=9) and urographic (n=7) findings of nine patients with malignant retroperitoneal fibrosis were retrospectively analyzed. Primary tumors were found to be advanced gastric cancer (n=6), early gastric cancer (n=1), breast cancer (n=1), and cervical cancer (n=1). We analyzed CT findings with regard to the site of soft tissue lesion, ureteral involvement, the presence or absence of hydronephrosis, and distant metastasis. The level and length of ureteral involvement, presence or abscence of ureteral stenosis, and ureteral displacement as seen on urography, were analyzed. RESULTS: On CT scans, enhanced soft tissue lesions (mass, 5 cases; plaque, 4 cases) encircling the abdominal aorta and IVC were noted in all cases. Thickening of the ureteral wall (n=8), hydronephrosis (n=9), and enlarged lymph node (n=5) were also seen. On urography, irregular stenosis and medial displacement of ureters from level L2 to S2 were noted in all cases. The length of ureteral involvement was 4-6.5cm. CONCLUSION: The common CT findings of malignant retroperitoneal fibrosis were enhanced soft tissue lesion encircling the abdominal aorta and IVC, hydronephrosis, and thickening of the ureteral wall. On urography, ureteral stenosis and medial displacement were seen.
Aorta, Abdominal
;
Breast Neoplasms
;
Constriction, Pathologic
;
Humans
;
Hydronephrosis
;
Lymph Nodes
;
Neoplasm Metastasis
;
Retroperitoneal Fibrosis*
;
Retrospective Studies
;
Stomach Neoplasms
;
Tomography, X-Ray Computed
;
Ureter
;
Urography
;
Uterine Cervical Neoplasms