1.Characterization of a species-specific antigen of rickettsia tsutsugamushi isolated in Korea.
Jae Seung KANG ; Byung Uk LIM ; Woo Hyun CHANG
Journal of the Korean Society for Microbiology 1991;26(5):443-450
No abstract available.
Korea*
;
Orientia tsutsugamushi*
;
Rickettsia*
2.Production of Monoclonal Antibody Against Human 14 - 3 - 3 Zeta Isoform Expressed in Escherichia coli.
Byung Uk LIM ; Jae Seung KANG ; Jung Woo KIM ; Nam Jong CHOI
Korean Journal of Immunology 1997;19(3):391-398
14-3-3 proteins are cytoplasmic proteins of about 29 kDa and have a minimum of seven isoforms. This protein is important in signal transduction with the ability of binding with phosphoserine of many signalling proteins. We expressed 14-3-3 protein tagged with 6 histidine residues in E. coli and purified the protein by nickel affinity chromatography. Using this purified protein as an antigen, we made rabbit antisera and mouse monoclonal antibodies to 14-3-3 zeta isoform. We subcloned cDNA of 14-3-3 zeta isoform derived from HeLa cell lamda gt 11 library into an E. coli expression vector which is designed to express heterologous protein with N- terminal 6 hidtidine tag. BALB/c mice were immunized with purified 14-3-3 protein and the hybridoma clones which produce monoclonal antibodies angainst 14-3-3 protein were selected. These monoclonal antibodies reacted with the recombinant protein expressed in E. coli as well as the 29-kDa native protein in various cell lines. However, they did not immunoprecipitate 14-3-3 protein. The monoclonal antibodies produced in this study can be valuable tools for the identification of the 14-3-3 in signal transduction study.
14-3-3 Proteins
;
Animals
;
Antibodies, Monoclonal
;
Cell Line
;
Chromatography, Affinity
;
Clone Cells
;
Cytoplasm
;
DNA, Complementary
;
Escherichia coli*
;
Escherichia*
;
HeLa Cells
;
Histidine
;
Humans*
;
Hybridomas
;
Immune Sera
;
Mice
;
Nickel
;
Phosphoserine
;
Protein Isoforms
;
Signal Transduction
;
Staphylococcal Protein A
4.Surgical Effect of Augmented Modified Kestenbaum Procedure Combined with Conjunctival Recession for the Abnormal Head Position in Congenital Nystagmus.
Byung Moo MIN ; Chang Sik KIM ; Jae Hoon KANG
Journal of the Korean Ophthalmological Society 1989;30(5):779-784
We performed surgery for correction of abnormal head turn in 10 patients with congenital nystagmus. For 3 patients with a head turn of 30 degrees, a 40% augmented modified kestenbaum operation was performed. For 4 patients with a head turn of 45 degrees, a 40% augmented modified kestenbaum operation combined with a 3 - 4 mm recession of conjunctival and subconjunctival tissues was performed. Finally, for 3 patients with a head turn of 60 degrees, a 60% augmented modified kestenbaum procedure combined with a 3 - 4 mm recession of conjunctival and subconjunctival tissues was performed. At the final follow-up visit(averaging 5.9 months), 7 patients showed complete corrections of previous head turn and 3 patients showed a small residual head turn of less than 10 degrees to the same side of the preoperative head turn. The average amount of correction we obtained from the surgery described above were 26.7, 42.5 and 56.7 degrees for the patients who had had a preoperative head turn of 30, 45 and 60 degrees respectively. Among the 10 patients, 4 showed no change in corrected visual acuity, but 6 showed increased corrected visual acuity by over 1 Snellen line. From the above results, we concluded that if recession procedure of the conjunctival and subconjunctival tissues was combined with augmented modified Kestenbaum procedure, its effect for correction of abnormal head turn in a patient with congenital nystagmus could be enhanced.
Follow-Up Studies
;
Head*
;
Humans
;
Nystagmus, Congenital*
;
Visual Acuity
5.Induction of Apoptosis by Vibrio vulnificus Cytolysin Through Activation of Caspase-3 in Endothelial Cells.
Byung Hyun PARK ; Kang Beom KWON ; Young Hoon LEE ; Jae Han JANG ; Jin Woo PARK
Journal of Bacteriology and Virology 2001;31(4):333-341
No abstract available.
Apoptosis*
;
Caspase 3*
;
Endothelial Cells*
;
Perforin*
;
Vibrio vulnificus*
;
Vibrio*
6.Complex Conjunctival Choristoma in Linear Nevus Sebaceous Syndrome: A case report.
Jinyoung YOO ; Jae Kyung KOH ; Seok Jin KANG ; Byung Kee KIM
Korean Journal of Pathology 2000;34(9):680-684
Linear nevus sebaceous syndrome is an uncommon neurocutaneous disorder characterized by nevus sebaceus, seizures, and mental retardation, and is often accompanied by ocular anormalies. We recently experienced a case of conjunctival choristoma associated with linear nevus sebaceous syndrome in a 17-month-old boy. The child was the product of a full-term uncomplicated pregnancy and normal delivery with normal karyotype of 46, XY. He was noted at birth to have a conjunctival mass on the right eye and linear nevi over the midline facial region and right temporoparietal scalp. Ophthalmologic examination revealed optic atrophy, peripapillary staphyloma, macular hypogenesis, and osseous choristoma of the choroid. A computed tomography scan demonstrated widening of the subarachnoid space and moderate atrophy of the cerebral and cerebellar hemispheres. He has been followed by ophthalmology and completely free of seizures since birth. The patient underwent excision of the conjunctival mass and biopsies of the skin lesion at 17 months of age. Histologic examination of the skin biopsies was characteristic for the linear sebaceous nevus of Jadassohn. Histologic findings of the conjunctival lesion showed a complex choristoma that contained lacrimal gland tissue and cartilage.
Atrophy
;
Biopsy
;
Cartilage
;
Child
;
Choristoma*
;
Choroid
;
Humans
;
Infant
;
Intellectual Disability
;
Karyotype
;
Lacrimal Apparatus
;
Male
;
Neurocutaneous Syndromes
;
Nevus*
;
Nevus, Sebaceous of Jadassohn
;
Ophthalmology
;
Optic Atrophy
;
Parturition
;
Pregnancy
;
Scalp
;
Seizures
;
Skin
;
Subarachnoid Space
7.Embolization of gastroduodenal artery pseudoaneurysm caused by chronic pancreatitis: a case report.
Se Jong KIM ; Jae Kyu KIM ; Kang Seok KO ; Byung Lan PARK ; Byong Geun KIM
Journal of the Korean Radiological Society 1993;29(1):95-98
Pseudoaneurysm due to chronic pancreatitis is uncommon, but it can cause recurrent and massive hemorrhage. Because of high morbidity and mortality associated with the pseudoaneurysm, early detection and treatment is essential. Surgical ligation or resection of the aneurysm has a high mortality and therefore, transcatheter embolization is preferably carried out. We report a case in which gastroduodenal artery pseudoaneurysm caused by chronic pancreatitis was successfully treated by transcatheter embolization using Gelfoam and Gianturco spring coils.
Aneurysm
;
Aneurysm, False*
;
Arteries*
;
Gelatin Sponge, Absorbable
;
Hemorrhage
;
Ligation
;
Mortality
;
Pancreatitis, Chronic*
8.Expression of Apoptosis, bcl-2, and PCNA in Uterine Cervical Intraepithelial Neoplasia and Invasive Carcinoma.
Myoung Ja CHUNG ; Kyu Yun JANG ; Myoung Jae KANG ; Dong Geen LEE ; Byung Chan OH
Korean Journal of Pathology 1997;31(11):1180-1189
This study was undertaken to know the extent of apoptosis, expression of bcl-2 and proliferating cell nuclear antigen (PCNA) in uterine cervical intraepithelial neoplasia (CIN; 15 cases) and invasive carcinoma (27 cases) and to evaluate them as a prognostic marker. Apoptosis was analysed by using the in situ apoptosis detection kit and bcl-2 and PCNA were detected by the immunohistochemical method. The results were as follows: Apoptotic indices (AI) in the invasive carcinoma (mean: 4.3) were 10-times higher than that in the CIN (mean: 0.43). Bcl-2 was expressed 60% of the cases in the dysplastic cells of the CIN II and CIN III, 33.3% of cases in the invasive carcinoma and not expressed in the CIN I except basal cells. The expression of the PCNA was increased by the grades of CIN and was strong in invasive carcinoma. The mean survival time of the patient with invasive carcinoma was significantly decreased in the higher AI index (above 4.3) than in the lower AI index (below 4.3). There was no significant correlation between the extent of apoptosis and the expression of bcl-2. According to the above results, AI are able to be used as an independent prognostic marker in the invasive cervical carcinoma, and bcl-2 and PCNA have an important role in the tumorigenesis of uterine cervical carcinoma.
Apoptosis*
;
Carcinogenesis
;
Cervical Intraepithelial Neoplasia*
;
Humans
;
Proliferating Cell Nuclear Antigen*
;
Survival Rate
9.The effect of oxygenated crystalloid cardioplegia for myocardial protection.
Meyun Shick KANG ; Jae Min CHO ; Byung Chul CHANG ; Bum Koo CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(11):1203-1208
No abstract available.
Heart Arrest, Induced*
;
Oxygen*
10.A Case of WilsonMikity Syndrome.
Jae You CHOI ; Sang Ho CHOI ; Byung Hak LIM ; Im Ju KANG
Journal of the Korean Pediatric Society 1988;31(2):241-245
No abstract available.