1.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
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Animals
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Antibodies, Monoclonal
;
Cell Line
;
Chromatography, Affinity
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Clone Cells
;
Cytoplasm
;
DNA, Complementary
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Escherichia coli*
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Escherichia*
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HeLa Cells
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Histidine
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Humans*
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Hybridomas
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Immune Sera
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Mice
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Nickel
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Phosphoserine
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Protein Isoforms
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Signal Transduction
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Staphylococcal Protein A
2.Ependymal Cysts.
Jae Gon MOON ; Ki Uk KIM ; Han Kyu KIM
Journal of Korean Neurosurgical Society 1999;28(9):1359-1365
The authors report four cases of ependymal cysts. Among the benign cystic lesions of neuroepithelial origin, ependymal cysts have been reportedly located in the cerebral parenchyme. This usually become symptomatic after 40 years of age, although it is generally thought to be congenital in origin. Symptomatic cases have been treated effectively with resection of the cyst or shunting procedures. Stereotactic removal of the cyst was also a good alternative as management in the authors' cases. Differential diagnosis is mandatory with other benign intraparenchymal cystic diseases.
Diagnosis, Differential
3.A Clinical Observation of Combined Trabeculeetomy and Cataract Extraction.
Shin Uk KANG ; Cheon Ki JOO ; Nam Ho BAEK
Journal of the Korean Ophthalmological Society 1987;28(6):1279-1284
The authors performed combined trabeculectomy-cataract extraction on eyes of 8 patients with coexisting glaucoma and cataract. Posterior chamber lens implantation was performed in 2 of 9 eyes. The follow-up period ranged from 6 to 12 months. Visual acuity was improved in 8 eyes. The mean intraocular pressure was reduced by approximately 53%, from 28 mmHg preoperatively to 13 mmHg postoperatively. No medications were required in 6 of the 8 eyes, but 2 needed one medication for adequate control of intraocular pressure, postoperatively. No greater incidence of complications were evident with the combined procedure, from that expected with routine cataract extraction or trabeculectomy alone.
Cataract Extraction*
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Cataract*
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Follow-Up Studies
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Glaucoma
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Humans
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Incidence
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Intraocular Pressure
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Trabeculectomy
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Visual Acuity
4.Polymicrobial Keratitis of Pseudomonas aeruginosa, Acinetobacter baumannii, and Ochrobactrum anthropi
Jung Youb KANG ; Ju Hwan SONG ; Ki Yup NAM ; Seung Uk LEE ; Sang Joon LEE
Journal of the Korean Ophthalmological Society 2019;60(5):474-479
PURPOSE: To report polymicrobial keratitis involving Pseudomonas aeruginosa, Acinetobacter baumannii, and Ochrobactrum anthropi. CASE SUMMARY: A 53-year-old female complained of pain and secretion in her right eye, which started 6 weeks before her visit. She applied steroid ointment, which was received from the dermatologist, to her eyelid 7 days prior to her visit but this treatment worsened her symptoms. At the initial visit, the visual acuity of the right eye was light perception, and purulent secretions were observed. Using a slit lamp, severe conjunctival hyperemia, hypopyon, and a ring-shaped central corneal ulcer were observed. The anterior chamber and fundus were not observed due to corneal lesions but ultrasonography showed no intraocular inflammation. Infectious keratitis was suspected and cultured by corneal scraping. During the incubation period, 0.5% moxifloxacin, 2% voriconazole, and 1% cyclopentolate were administered. A total of 400 mg of moxifloxacin and 100 mg of doxycycline were given orally. In the primary culture, Pseudomonas aeruginosa and Acinetobacter baumannii were identified so 5% ceftazidime, which was sensitive for the antibiotic susceptibility results was further instilled. Thereafter, the keratitis improved but the keratitis again worsened while maintaining the topical treatment. A secondary culture was positive for Ochrobactrum anthropi. Treatment with 1.4% gentamicin, which was sensitive for the antibiotic susceptibility test was added and the keratitis improved. A conjunctival flap was performed because of the increased risk of perforation. CONCLUSIONS: We report polymicrobial keratitis involving Pseudomonas aeruginosa, Acinetobacter baumannii, and Ochrobactrum anthropi for the first time in the Republic of Korea.
Acinetobacter baumannii
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Acinetobacter
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Anterior Chamber
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Ceftazidime
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Corneal Ulcer
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Cyclopentolate
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Doxycycline
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Eyelids
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Female
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Gentamicins
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Humans
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Hyperemia
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Inflammation
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Keratitis
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Middle Aged
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Ochrobactrum anthropi
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Ochrobactrum
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Pseudomonas aeruginosa
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Pseudomonas
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Republic of Korea
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Slit Lamp
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Ultrasonography
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Visual Acuity
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Voriconazole
5.Time Series Changes in Cataract Surgery in Korea.
Ju Hwan SONG ; Jung Youb KANG ; Ki Yup NAM ; Seung Uk LEE ; Sang Joon LEE
Korean Journal of Ophthalmology 2018;32(3):182-189
PURPOSE: We analyzed time series changes in cataract surgeries in Korea, and provide basic data to enhance the efficiency of medical services for cataract surgery. METHODS: Among cataract surgery statistics registered in the Korean National Health Insurance Cooperation from 2006 to 2012, we used data regarding the number of patients and operations and the number of patients and operations per 100,000 people. We analyzed various time series changes, including differences by sex and age. RESULTS: The total numbers of patients from 2006 to 2012 by year were 207,370; 228,170; 250,289; 268,548; 289,867; 308,111; and 302,182, respectively. The total numbers of operations from 2006 to 2012 by year were 272,920; 305,807; 338,332; 365,874; 398,338; 428,158; and 420,905, respectively. The number of patients and operations per 100,000 people were highest in men 80 to 84 years old and women 75 to 79 years old. Comparing the number of operations in 2006 and after, the patient age group with the highest increase rate changed from over 85 years old to 75–79 years old since 2010 in men and from over 85 years old to 50–54 years old since 2009 in women. For each year investigated, the number of operations performed was higher than the number of patients who received operations. CONCLUSIONS: Over the study period, the number of cataract surgeries increased, while the age of cataract patients decreased. Additionally, the number of cataract-related surgeries increased in relation to the number of patients.
Cataract Extraction
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Cataract*
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Epidemiology
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Female
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Humans
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Korea*
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Male
;
National Health Programs
7.Speech Improvement of the Patients Performed Primary Palatal Repair over 4 Years Old.
Cheol Uk KANG ; Yong Chan BAE ; Su Bong NAM ; Young Seok KANG ; Soon Bok KWON
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(3):308-312
Time to time, we face patients who missed the proper time for primary palatal repair. Although we do not have enough available documents, it is important to establish efficacy of palatal repair in patients more than 4 years old. From May 1995 to March 2005, we selected 14 patients who underwent palatal repair in more than 4 years old patients and they are able to tolerate speech articulation tests. Out of 14 patients 5 males an 9 females in sex, aged form 4 to 50 years old. 6 patients with incomplete cleft palate and 8 patients with submucous cleft palate. Double reversing Z-plasty(n=5), pushback palatoplasty(n=4), two flap palatoplasty(n=2), von Langenbeck palatoplasty(n=2), and intravelar veloplasty(n=1) were performed. Preoperative and postoperative speech articulation test, "Simple method of speech evaluation in Korean patients with cleft palate", were conducted. Satisfaction rate was sorted into 5 levels. There is no significant statistical correlation in the speech improvement, satisfaction rate, patients sex, cleft type and operative method. But there is significant statistical correlation between the speech improvement and patienet's age. There were better result in younger patient group than aged patients group.
Child, Preschool*
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Cleft Palate
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Female
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Humans
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Male
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Middle Aged
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Speech Articulation Tests
8.A case of syphilis related cervical necrotizing fasciitis.
Shin Won MYOUNG ; Jung A LEE ; Myoung Guen KANG ; Kyung Mok KIM ; Je Uk PARK
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2004;30(6):540-544
The oral lesion of acquired syphilis - primary, secondary, and tertiary - is comparatively rare. Most of the time secondary syphilis manifests itself as a systemic disease with maculopapular eruptions of the skin, generalized lymphadenopathy, fever, and occasional eruptions on the mucous membranes. The lesions of the tertiary stage may occur anywhere in the body, including the oral cavity. Necrotizing faciitis of the head and neck is an uncommon, rapidly spreading soft tissue infection of polymicrobial origin characterized by extensive necrosis and gas formation in the subcutaneous tissue and superficial fascia. This is characterized by its fulminating, devastating, and rapid-progressing course. The mortality rate is high if it is not treated promptly and vigorously. Patients with an impaired immune system and those with small-vessel disease such as diabetes mellitus are more prone to develop this infection.
Diabetes Mellitus
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Fasciitis
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Fasciitis, Necrotizing*
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Fever
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Head
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Humans
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Immune System
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Lymphatic Diseases
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Mortality
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Mouth
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Mucous Membrane
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Neck
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Necrosis
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Skin
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Soft Tissue Infections
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Subcutaneous Tissue
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Syphilis*
9.Postoperative Speech Improvement in the Patients of Velopharyngeal Dysfunction without Definite Cleft Palate.
Yong Chan BAE ; Cheol Uk KANG ; Su Bong NAM ; Jae Young HERH ; Young Seok KANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(2):144-148
The velopharyngeal dysfunction usually occurs in patients with previous operation of the cleft palate or with submucosal cleft palate. In case of velopharyngeal dysfunction without cleft palate, no study has been made when it comes to operative method and postoperative results. Here, we would like to present the operative methods and the postoperative results with the cases we've experienced. This study is based on seven cases of velopharyngeal dysfunction without cleft palate from 1999 to 2004. Analysis of age, sex, etiology, operative methods, satisfaction rate and speech evaluation was done. The patients were 3 males and 4 females, with an age ranged from 10 to 28 at the time of surgery. The follow-up period was more than six months. One case had bifid uvula, another had atypical anomaly in palate, and five cases had no anatomical abnormality. The palatal lengthening was done on one patient, the levator muscle repositioning on another patient and to the rest of them, the superiorly based posterior pharyngeal flap was done. It was difficult to determine the etiology of the velopharyngeal dysfunction without cleft palate. The speech improvement and the satisfaction rate of the patients and parents were diverse. Although the authors had a problem with statistical analysis between the operative age and the speech improvement, it was reasonable to perform a surgical operation because post operative speech improvement was observed in most cases regardless of age. There is little statistical correlation, but significantly higher outcomes were observed in palatal lengthening and levator muscle repositioning than in pharyngeal flap.
Cleft Palate*
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Female
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Follow-Up Studies
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Humans
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Male
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Palate
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Parents
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Speech Articulation Tests
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Uvula
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Velopharyngeal Insufficiency
10.Apoptosis of Murine Macrophage-like Cells Infected with Orientia tsutsugamushi.
Nam Jong CHOI ; Mee Kyung KIM ; Heon Joo PARK ; Byung Uk LIM ; Jae Seung KANG
Journal of the Korean Society for Microbiology 1998;33(4):399-406
A large number of bacterial pathogens have been identified as mediators of apoptosis in vitro and the induction of apoptosis might be an important step in the pathogenesis of these bacteria. In this study, we analyzed the interactions of Orientia tsutsugamuchi with J774 murine macrophage-like cells. The J774 cells were infected with Boryong strain of O. tsutsugamushi and the DNA was analyzed with agarose gel electrophoresis. We observed the typical laddering pattern of DNA fragmentation indicative of apoptosis in infected cells but not cells infected with heat-killed O. tsutsugamushi. We performed terminal deoxynucleotidyl transferase (TdT) assay to label the 3'-hydroxy ends of DNA breaks and observed intense brown staining of nuclei of infected macrophages. With Hoechst 33258 for staining nucleus, strong chromatin condensation was observed only in infected J774 cells. We also examined the cytokine secretion pattern of J774 cells during the rickettsial infection. The large amount of TNF-alpha and IL-10 were secreted after 24 hrs of infection, but the secretion of IL-1beta was increased in small amount. These results showed that O. tsutsugamushi induce apoptosis in murine macrophage-like cells by different mechanism from that of shigella which cause secretion of large amount of IL-1beta.
Apoptosis*
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Bacteria
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Bisbenzimidazole
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Chromatin
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Chungcheongnam-do
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DNA
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DNA Breaks
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DNA Fragmentation
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DNA Nucleotidylexotransferase
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Electrophoresis, Agar Gel
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Interleukin-10
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Macrophages
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Orientia tsutsugamushi*
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Shigella
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Tumor Necrosis Factor-alpha