1.Views of Korean Medical Students on the Medical Education and Medical Care.
Kyung Hwan KIM ; Jung Han PARK
Journal of the Korean Medical Association 1999;42(3):234-237
No abstract available.
Education, Medical*
;
Humans
;
Students, Medical*
3.A Clinical Study on the Incompetent Internal Os of the Cervix.
Kyung Hwan HAN ; Jung Don PARK ; Chi Dong HAN
Korean Journal of Obstetrics and Gynecology 1997;40(1):140-145
The 68 cervical cerclage operations of incompetent internal os of the cervix(IIOC) were performed at the Taegu Catholic Medical Center from Jan. 1, 1990 to Dec. 31, 1995. The results of this study were as follows: 1. The incidence of operation for IIOC was 0.23% of total delivery. 2. Highest number of IIOC was observed in the age group of 25 to 29, and the average number of pregnancy before operation was 4.1. 3. The significant contributory factor was previous history of the induced or spontaneous abortion. 4. In all cases, cerclage method was McDonald operation. 5. The average fetal salvage rate after operation was 82.5% and from the 14th week to 16th week of gestation(43 cases), the success rate of operation was 85%. 6. The causes of operation failure were premature labor in 6 cases(55%), premature rupture of membrane in 3 cases(27%) and abortion in 2 cases(18%) in order.
Abortion, Spontaneous
;
Cerclage, Cervical
;
Cervix Uteri*
;
Daegu
;
Female
;
Humans
;
Incidence
;
Membranes
;
Obstetric Labor, Premature
;
Pregnancy
;
Rupture
4.Identification of Oocyte-Specific Diva-Associated Proteins using Mass Spectrometry.
Se Jin YOON ; Jung Woong KIM ; Kyung Hee CHOI ; Sook Hwan LEE ; Kyung Ah LEE
Korean Journal of Fertility and Sterility 2006;33(3):189-198
OBJECTIVE: We previously described that Diva is highly expressed in matured metaphase II (MII) oocytes compared to immature germinal vesicle (GV) oocytes in mouse.1 We report here that the expression of Diva transcript as well as protein is oocyte-specific. To elucidate its physiological role in oocyte, the binding partner(s) of Diva has been identified by using immunoprecipitation (IP) followed by Mass Spectrometry. METHODS: NIH/3T3 cells were transiently transfected for 24 h with either empty vector for control or FLAG-tagged mouse Diva construct, and IP was performed with anti-FLAG antibody. The immuno-isolated complexes were resolved by SDS-PAGE on a 12% gel followed by Coomassie Blue staining. For in-gel digestion, 15 bands of interest were excised manually and digested with trypsin. All mass spectra were acquired at a positive reflector mode by a 4700 Proteomics Analyzer (Applied Biosystems, Framingham, MA). Proteins were identified by searching the NCBI nonredundant database using MASCOT Peptide Mass Fingerprint software (Matrixscience, London). RESULTS: Diva-associated complexes were formed in FLAG-tagged mouse Diva-overexpressed NIH/3T3 cells via IP using anti-FLAG-conjugated beads. Among the excised 15 bands, actin and actin-binding proteins such as tropomyosin, tropomodulin 3, and alpha-actinin were identified. Binding between Diva and actin or tropomyosin was confirmed by IP followed by Western blot analysis. Both bindings were also detected endogenously in mouse ovaries, indicating that Diva works with actin and tropomyosin. CONCLUSIONS: This is the first report that immuno-isolated Diva-associated complexes are related to actin filament of the cytoskeletal system. When we consider the association of Diva with actin and tropomyosin, oocyte-specific Diva may play a role in modulating the cytoskeletal system during oocyte maturation.
Actin Cytoskeleton
;
Actinin
;
Actins
;
Animals
;
Blotting, Western
;
Dermatoglyphics
;
Digestion
;
Electrophoresis, Polyacrylamide Gel
;
Female
;
Immunoprecipitation
;
Mass Spectrometry*
;
Metaphase
;
Mice
;
Microfilament Proteins
;
Oocytes
;
Ovary
;
Proteomics
;
Tropomodulin
;
Tropomyosin
;
Trypsin
5.A modified elution method for determining the presence of fetal red blood cells.
No Bum LEE ; Hye Kyung LEE ; Jung Hwan SHIN ; Moon Il PARK ; Sung Ro CHUNG ; Hyung MOON
Korean Journal of Perinatology 1992;3(2):72-76
No abstract available.
Erythrocytes*
6.Biometric Analysis of the Normal Aged Eye with Photodocumentation Method.
Tae Bum JUNG ; Kyung Hwan SHYN
Journal of the Korean Ophthalmological Society 1992;33(11):1060-1064
The biometric analysis of the normal aged eye with photodocumented method (using EAS-lOOO Scheimpflug camera) was performed in 109 eyes. We measured anterior chamber depth, corneal thickness, corneal radius, lens thickness and biometric lens analysis according to the age. The lens thickness increased annually (O.O1mm) with age and the anterior chamber depth reversely decreased. The biometric analysis can provide normal critariae values about the effect of anticatar acto us drugs in long-term follow up study and the relationships between normal aged lens and highly risk groups in the cataract prevalence study.
Anterior Chamber
;
Cataract
;
Radius
7.Polymorphic Reticulosis.
Duck Hwan KIM ; Jin Hee SOHN ; Sung Suk PAENG ; Kyung Ha KANG ; Jung Il SUH
Korean Journal of Pathology 1995;29(3):296-302
Polymorphic reticulosis(PMR) is a unique clinicopathological entity of unknown etiology, which commonly present as an aggressive, necrotizing lesion of the upper respiratory tract. It is a separate nosologic entity from Wegener's granulomatosis and idiopathic mildine destructive disease. The origin of the cells composing polymorphic reticulosis has been controversial. We reviewed 15 cases of polymorphic reticulosis with respect to clinical and histologic bases, and immunohistochemical studies were done using UCHLI (CD45RO), as a T cell marker, CD-20 as a B cell marker and alpha- I -antichymotrypsin as a histiocytic marker. Almost all cases showed characteristic histologic and immunohistochemical features similar to those of peripheral T cell lymphoma. Thus, this study indidcated that polymorphic reticulosis is a type of malignant lymphoma of T cell lineage.
8.Relation of Telomerase Activity and Apoptosis in Superficial Gastritis and Gastric Cancer.
Do Kyung KIM ; Min JUNG ; Im Hwan NOH
Journal of the Korean Surgical Society 2000;59(4):500-506
PURPOSE: Telomeres are specialized structures containing unique (TTAGGGG) repeats at the ends of eukaryotic chromosomes that are thought to be important in the protection and replication of chro mosomes. Lagging strand DNA synthesis at the end of linear chromosomes cannot be complieted (referred to as the end-replication problem), and this results in the progressive shortening of telomeric repeats with each cell division. This shortening of telomeres has been proposed as the mitotic clock, and when telomeres are sufficiently short, may contribute to replicative cellular senescence in cells. The enzyme telomerase permits the de novo synthesis of telomeric DNA into chromosomal ends. Apoptosis is physiologic cell death and prevent cancerous transformation of cell. METHODS: We measured the telome rase activity with the use of a PCR-based telomerase assay and apoptosis, in 10 superficial gastritis and 13 gastric cancer patients. RESULTS: Telomerase activity was present in 70% of the gastric cancer patient and in 92.7% of the superficial gastritis patients (P=0.171). Apoptosis was present in 0% of the gastric cancer patients, and in 80% of the superficial gastritis patients (P=0.001). CONCLUSION: Telomerase activity was detected in and cancer and inflammatory tissue. Although there is progressive cellular division due to telomerase activity, cancerous transformations are prevented by apoptosis.
Apoptosis*
;
Cell Aging
;
Cell Death
;
Cell Division
;
DNA
;
Gastritis*
;
Humans
;
Stomach Neoplasms*
;
Telomerase*
;
Telomere
10.The Comparison Study of teh Effect of Ambroxol on Prevention of Infantile Respiratory Distress Syndrome in Preterm Delivery.
Kyung Hwan HAN ; Jung Don PARK ; Chi Dong HAN ; Chang Gyu HUH ; Soon Gu HWONG
Korean Journal of Perinatology 1997;8(1):21-26
This study was conducted to evaluate the effect of ambroxol on preventing the infantile respiratory distress syndrome (IRDS) in preterm birth at the Dept. of Obstetrics and Gynecology of Taegu Catholic Medical Center during the period from Jan. 1996 to Dec. 1996. Total of 68 cases were evaluated including 16 ambroxol group and 52 control group. The result were as follows : 1. In the comparison of preventing IRDS, there was 0 case of IRDS in ambroxol group and 7 cases of IRDS in control group (13.46 %). There was a significant difference between two groups (p<0.05). 2. The side effects of ambroxol after administration were nausea in 5 cases, headache in 3 cases, and chest discomfort in 4 cases, but these were not serious and self controlled. 3. There was no significant difference in neonatal morbidity between two groups (p > 0.05).
Ambroxol*
;
Daegu
;
Gynecology
;
Headache
;
Nausea
;
Obstetrics
;
Premature Birth
;
Respiratory Distress Syndrome, Newborn*
;
Thorax