1.Distribution patterns of cytoskelectal proteins in cardiac endothelial cells : Investigation using monoclonal antibodies.
Han Chul KIM ; In Hwan SONG ; Yung Chang LEE
Yeungnam University Journal of Medicine 1990;7(2):27-37
To investigate the changing patterns of microfilament and microtubule arrangement and influence of myocardial cells and colchicines to microfilament and microtubule formation in cardiac endothelial cells the authors carried out indirect immunofluorescence stain for actin and tubulin with supernatant monoclonal antibodies. Secondary antibodies were IgG FITC conjugate. The results were summarized as follows. Fiberform reactions were stronger in the cells with many processes and spread cytoplasm and they became weaker after the endothelial cells formed monolayer. In the endothelial cells cocultured with myocardial cells the fiberform of the microtubule became less visible compared to control group but fiberform of the microtubule maintained strong intensity as endothelial cells formed monolayer. In the group treated with colchicines, there were no visible differences in microfilaments compared to control group but fiberform of microtubule revealed weaker intensity after colchicines treatment. The intensity of microtubule fiberform returned to control level after 2 days.
Actin Cytoskeleton
;
Actins
;
Antibodies
;
Antibodies, Monoclonal*
;
Cytoplasm
;
Endothelial Cells*
;
Fluorescein-5-isothiocyanate
;
Fluorescent Antibody Technique, Indirect
;
Immunoglobulin G
;
Microtubules
;
Tubulin
2.Clinical experience of exfoliation syndrome.
Chul HONG ; Ki Yung SONG ; Woo Hyung PARK
Korean Journal of Ophthalmology 1988;2(1):32-38
Six patients with exfoliation syndrome were seen in our glaucoma clinic. Four patients presented unilateral ocular involvement and the other 2 patients were bilaterally involved. Eight eyes had exfoliation material on the anterior surface of the lens and pupillary border, and 7 eyes exhibited it on the anterior chamber angle. Sampaolesi`s line was detected in 4 eyes. Five patients (6 eyes) of 6 patients (8 eyes) with exfoliation exhbited an elevated intraocular pressure (IOP) exceeding 21 mmHg. Among them, 3 patients (3 eyes) had an extremely high maximum IOP over 47 mmHg, and 2 patients (3 eyes) had a slightly elevated IOP less than 26 mmHg during the follow-up period. Argon laser trabeculoplasty (ALT) was performed twice on each unilateral eye of the 2 patients on whom the inital trabeculectomy failed. However, longterm IOP control after laser treatment was not obtained in either case, which might be due to the extremely high prelaser lOP level, in exoess of 40 mmHg.
Aged
;
Anterior Eye Segment/*physiopathology/surgery
;
Eye Diseases/diagnosis/*physiopathology/surgery
;
Female
;
Glaucoma/physiopathology/surgery
;
Humans
;
Intraocular Pressure
;
Korea
;
Laser Therapy
;
Male
;
Middle Aged
;
Trabeculectomy
3.Detection of Glaucomatous Visual Field Defect by Screening Program of Humphrey Field Analyzer.
Chul HONG ; Ki Yung SONG ; Woo Hyung PARK ; Dong Ho YOUN
Journal of the Korean Ophthalmological Society 1992;33(2):166-170
We have experienced automated and computerized perimetry using a Humphrey Field Analyzer in our Glaucoma Services. To evaluate its clinical efficacy, we report the results of the Armaly central field screening test in comparison with those of central 30-2 threshold test of the Humphrey Field Analyzer. One hundred fortythree eyes of 83 cases of normotensives, ocular hypertensives and glaucoma patients with open-angle or narrow-angle were enrolled in this study. Fiftyfour out of 61 patients (88.5%) and 73 out of 81 eyes (90.1 %) with visual field defect were detected by the screening test of the Humphrey Field Analyzer. Eight out of 81 eyes (9.9%) with visual field defect detected by the screening test were confirmed as false positive. All points of false positive were solitary, which tended to occur more frequently on superior vusual field. False negative of 8 eyes (12.9%) detected by the screening test were confirmed by the threshold test. The point of false negative was more frequent on superior field and showed to locate more peripherally from the fixation point. There was no significant difference in either central sensitivity or age of the false ring.
Glaucoma
;
Humans
;
Mass Screening*
;
Visual Field Tests
;
Visual Fields*
4.Clinical Effects of Topical Betaxolol Hydrochloride(Betoptic(R)) in Glaucoma Patients.
Chul HONG ; Ki Yung SONG ; Dong Ho YOUN
Journal of the Korean Ophthalmological Society 1987;28(6):1285-1288
To evaluate the clinical usefulness of a newly developed beta-one selective blocker. Betaxolol hydrochloride(Betoptice(R)), seven patients(14 eyes) with primary open-angle glaucoma who were instilled twice a day with a drop of 0.5% Betoptic were enrolled in this study. Intraocular pressure(IOP), systolic and diastolic blood pressure, pulse rate and pupil size were measured with the evaluation on the local adverse reaction before and after the Betoptic treatment of 1, 2, 4, 8 and 12 weeks. The following results were obtained: 1. Significant reduction of IOP was noted at all intervals examined after the treatment of 0.5% Betoptic and it had the additive effect on pilocarpine. 2. The systemic side reaction of Betoptic on either pulse rate or blood pressure was not significant and pupil size was not changed by Betoptic. 3. The local transient and mild stinging sensation with tearing was followed after the instillation of 0.5% Betoptic eye solution.
Betaxolol*
;
Bites and Stings
;
Blood Pressure
;
Glaucoma*
;
Glaucoma, Open-Angle
;
Heart Rate
;
Humans
;
Pilocarpine
;
Pupil
;
Sensation
5.Probability of global indices in low tension glaucoma.
Chul HONG ; Jong Hoon LEE ; Ki Yung SONG
Korean Journal of Ophthalmology 1995;9(2):96-100
To know the pattern of visual field (VF) defect of low tension glaucoma (LTG), its diffuse and localized VF defects were compared using the significance values (p-value) of mean deviation (MD) and corrected pattern standard deviation (CPSD), which are calculated with STATPAC in Humphrey Visual Field Analyser. Sixteen eyes of LTG were enrolled and 34 eyes of primary open angle glaucoma (POAG) were used as controls. The degree of VF defects in LTG and POAG was relatively mild with the p-value of MD equal to or greater than 1%. Neither mean MD nor mean CPSD of LTG was significantly different from each of POAG (p > 0.8 and p > 0.2, respectively). Comparing the p-values of MD and CPSD, many patients showed more significant p-value of MD in LTG and POAG (62.5% and 61.8%, respectively). However, relatively more severe defect of CPSD tended to occur more frequently in LTG than in POAG (25% and 5.9%, respectively, chi-square = 4.964, p < 0.09). The relation between p-values of MD and CPSD was not significantly influenced by the intraocular pressure, MD or vertical cup to disc ratio in either LTG or POAG.
Adolescent
;
Adult
;
Aged
;
Aged, 80 and over
;
Female
;
Glaucoma, Open-Angle/*pathology/physiopathology
;
Humans
;
*Intraocular Pressure
;
Male
;
Middle Aged
;
Optic Disk/*pathology
;
Probability
;
Vision Disorders/*pathology
;
*Visual Fields
6.Exfoliation Syndrome: Clinical analysis of 6 cases.
Ki Yung SONG ; Chul HONG ; Woo Hyung PARK
Journal of the Korean Ophthalmological Society 1987;28(5):1105-1111
The first comprehensive clinical description of exfoliation syndrome was published by Vogt. The appearance is described as a deposition of white granular fluffy material on the anterior lens surface, pupil margin, zonule, ciliary body and anterior chamber angle, and floating free in the aqueous. At past, this syndrome was thought to be rare outside of the Scandinavian countries, but the relatively high prevalence has been noted in many other countries outside of Scandinavia. The clinical significance of this syndrome is high frequency of glaucoma. Six cases in this report illustrate some of typical clinical features of exfoliation syndrome. The purpose of this study is to concentrate our attention upon the presence of this syndrome in Korea.
Anterior Chamber
;
Ciliary Body
;
Exfoliation Syndrome*
;
Glaucoma
;
Korea
;
Prevalence
;
Pupil
;
Scandinavia
7.Effect of apraclonidine hydrochloride on the attack of Posner-Schlossman syndrome.
Korean Journal of Ophthalmology 1993;7(1):28-33
The intraocular pressure (IOP) of glaucomatocyclitic crisis with the attack fell 50.3%, from 37.8 +/- 8.2 mmHg to 18.8 +/- 4.8 mmHg, 4 hours after instillation of 1% apraclonidine. Glaucomatocyclitic crisis showed a more significant hypotensive response to 1% apraclonidine than primary open-angle glaucoma (24.8%, from 43. 1 +/- 8.1 mmHg to 32.4 +/- 7.5 mmHg after 4 hours). The intraocular pressure decrease percentage was similar regardless of the initial level of intraocular pressure. Clinically significant changes in mean systolic and diastolic blood pressures, were not observed, however, a mild decrease in the pulse rate was noted. And the local mydriatic effect on the pupillary diameter was significant. Apraclonidine, 1% might be newly indicated to control the IOP rise of glaucomatocyclitic crisis. Further studies on the possible mechanism of the prostaglandin mediated hypotensive effect of 1% apraclonidine are suggested.
Adolescent
;
Adrenergic alpha-Agonists/*administration & dosage
;
Adult
;
Aged
;
Clonidine/administration & dosage/*analogs & derivatives
;
Female
;
Glaucoma, Open-Angle/drug therapy
;
Hemodynamics
;
Humans
;
Intraocular Pressure
;
Iridocyclitis/*drug therapy
;
Male
;
Middle Aged
;
Ocular Hypertension/*drug therapy
;
Ophthalmic Solutions
;
Syndrome
8.Total Knee Replacement in Gonarthrosis
Dae Kyung BAE ; Myung Chul YOO ; Song LEE ; Yung Yong KIM
The Journal of the Korean Orthopaedic Association 1986;21(5):915-922
We studied the results in forty-three knees in thirty patients-three male and twenty seven femalewho had rheumatoid arthritis, osteoarthritis, traumatic arthritis and osteonecrosis in the knee and were treated by total knee joint replacement. The average age of the patients was 56.7 years. The results were anaysed after follow-ups ranging from one year to three years and seven months, average being 23.6 months. The assessment was made upon the knee rating system of the Hospital for Special Surgery; the results were excellent in 29 knees, good in 12, fair in one and poor in one. The improvement of the flexion contractures was significant (postoperative average 1.7 degrees compared with preoperative average 20.1 degrees). The postoperative active flexion ranged from 70 degrees to 140 degrees (mean 110.2 degrees). One knee had a deep wound infection. The radiological loosening demonstrated in three cases, two of them had incomplete, nonprogressive radiolucent line, being less than one millimeter in width in the tibial component, one who had a deep infection showed three millimeters radiolucent line.
Arthritis
;
Arthritis, Rheumatoid
;
Arthroplasty
;
Arthroplasty, Replacement, Knee
;
Contracture
;
Follow-Up Studies
;
Humans
;
Knee
;
Knee Joint
;
Male
;
Osteoarthritis
;
Osteonecrosis
;
Wound Infection
9.A case of staphylococcal myocaridtis with complete atrioventricular block.
Ho Chul SONG ; Kee Bae SEUNG ; Jong Soon RAH ; Kyo Yung CHOO ; Won Yung LEE ; Dong Hun KANG ; Kyoo Bo CHOI ; Moon Won KANG
Korean Journal of Infectious Diseases 1993;25(4):383-386
No abstract available.
Atrioventricular Block*
10.Effect of apraclonidine hydrochloride on acute introacular pressure rise after argon laser iridotomy.
Chul HONG ; Ki Yung SONG ; Woo Hyung PARK ; Young Ho SOHN
Korean Journal of Ophthalmology 1991;5(1):37-41
To determine the effect of apraclonidine hydrochloride on the acute intraocular pressure (IOP) rise after argon laser iridotomy (ALI), a double-masked comparative study was carried out. Twenty-nine eyes (20 patients) with angle-closure glaucoma underwent ALI. Eighteen eyes were treated with apraclonidine, and the remainder received a placebo 1 hour before and immediately after ALI. The mean IOP increase in the apraclonidine group was lower than that in the placebo group at each postlaser interval (p < 0.01). Although the average value of the maximal increases of IOP after ALI in the apraclonidine group was 4 mmHg, that in the placebo group was 16 mmHg. In the placebo group, 27.3% (3 out of 11 eyes) experienced an IOP rise > or = 10 mmHg. However, that kind of IOP rise was not found in the apraclonidine group (0 out of 18 eyes) (p < 0.01). Ocular or systemic side effects were not found in a series of examinations in both groups. Therefore, apraclonidine proved to be effective in lowering the IOP rise after ALI.
Acute Disease
;
Adrenergic alpha-Agonists/*pharmacology
;
Adult
;
Aged
;
Clonidine/*analogs & derivatives/therapeutic use
;
Double-Blind Method
;
Female
;
Glaucoma, Angle-Closure/drug therapy/*surgery
;
Humans
;
Intraocular Pressure/*drug effects
;
Iris/drug effects/*surgery
;
*Laser Therapy
;
Male
;
Middle Aged
;
Postoperative Complications/prevention & control
;
Prospective Studies