1.A Study of Phototoxicity Using the Candida Albicans Test and the Photohemolysis Test.
Seung Hyun HONG ; Hyun Chul CHOI ; Kee Chan MOON
Korean Journal of Dermatology 1995;33(2):268-274
Background: If phototoxic:ity can be predetermined in vitro, the information will aid in prognosticating whether or not caimpounds have a photosensitizing pczrlial. OBJECTIVE: For the evaluation of the phototoxic potentials of reral drugs, we performed the Candida albicans test and the photohemolysis test. METHODS: The Candida altiicans test is based on growth inhibtion of Candida albicans after application of the drug and ultraviolet light A( UVA ) irradiatior and the photohemolysis test is based on hemolysis of red blood cells caused by irradiation ir the presence of photosensitizing compounds. In the Candida albicans test, clear zones around the drug patches were evaluated, which means positive results for the phototoxic potential of the drugs. In the photohemolysis test, the amounts of hemolysis were evaluated by measuring the relar absorbance at 540nm using a spectrophotometer. RESULTS: In the Candida albicans test, ibuprofen, naldix acid, chlorpromazine and thiodiphenylamine showed positive results, whereas others did not the photohemolysis test, griseofulvin, ibuprofen and nalicdixic acid showed increased amounts hemolysis at UVA and ultraviolet light B(UVB) irracliation, and chlorpromazine, thiodiphenylaiair, chlorothiazide and piroxicam showed increased amounts of hemolysis at UVA irradiation only. CONCLUSION: The results showed that both methods were goodness screening tests for demonstrating the phototoxicity of therapeutic drugs.
Candida albicans*
;
Candida*
;
Chlorothiazide
;
Chlorpromazine
;
Dermatitis, Phototoxic*
;
Erythrocytes
;
Griseofulvin
;
Hemolysis
;
Ibuprofen
;
Mass Screening
;
Piroxicam
;
Ultraviolet Rays
2.Allergic Contact Dermatits due to Cambison Ophthalmic Ointment.
Kyung Ae JANG ; Jee Ho CHOI ; Kee Chan MOON
Korean Journal of Dermatology 1997;35(2):358-361
Cambison ophthalmic ointment is an easily available topical medicament in Korea, However, the allergic contact dermatitis lo Cambison ophthalmic ointment has not been reported in Korean dermatology literature. We report, a case of allergic contact dermatitis in a 28-year-old female who suffered from itchy, erythematous patches on both periorbital areas. She wore contact lenses and for the last year, she hac applied Cambison ophthalmic ointment to both periorbital areas. The skin lesions were aggravated gradually. A patch test showed positive reactions to Cambison ophthalmic ointment, neomycin, mercury and thimerosal. We suspect neomycin contained in Cambison ophthalmic ointment to be the etiologic agent. When contact dermatitis occurs on periorbital areas, topical ophthalmic ointment or lens cleaner may be considered as a causative agent.
Adult
;
Contact Lenses
;
Dermatitis, Allergic Contact
;
Dermatitis, Contact
;
Dermatology
;
Female
;
Humans
;
Korea
;
Neomycin
;
Patch Tests
;
Skin
;
Thimerosal
3.Congenital aortopulmonary fistula presenting as an exertional dyspnea.
Tae Hun KIM ; Chan Il MOON ; Jae Woong CHOI ; Myung Ju CHOI
Korean Circulation Journal 2000;30(10):1291-1294
Aortopulmonary fistula is an exceedingly rare vascular malformation. It is commonly derived after chest injuly or from complication of chest operation and aortic dissection and congenital aortopulmonary fistula is only several cases combined with Tetralogy of Fallot or aortic stenosis. But a congenital aortopulmonary fistula without any hemodynamic abnormalities was not reported. A 56-year old man with exertional dyspnea was admitted. In an examination on admission, there were no abnomalities. Aortography showed an aortopulmonary fistula that branches from the ascending aorta adjacent to the right coronary artery, running to the main pulmonary artery. Transcatheter coil embolization was performed and he was discharged 7 day after embolization without complication. Exertional dyspnea disappeared and careful follow up has be performed periodically.
Aorta
;
Aortic Valve Stenosis
;
Aortography
;
Coronary Vessels
;
Dyspnea*
;
Embolization, Therapeutic
;
Fistula*
;
Follow-Up Studies
;
Hemodynamics
;
Humans
;
Middle Aged
;
Pulmonary Artery
;
Running
;
Tetralogy of Fallot
;
Thorax
;
Vascular Malformations
4.Treatment of Livedoid Vasculopathy with Pulsed Intravenous Immunoglobulin.
Tai Kyung NOH ; Hyerim MOON ; Chong Hyun WON ; Sung Eun CHANG ; Miwoo LEE ; Jee Ho CHOI ; Kee Chan MOON
Korean Journal of Dermatology 2013;51(10):840-841
No abstract available.
Immunoglobulins*
5.4 Cases of Steakhouse Syndrome of the Esophagus.
Jai Dong CHOI ; Jong Ho MOON ; Moon Sung LEE ; Jin Hong KIM ; Sung Won CHO ; Chan Sup SHIM
Korean Journal of Gastrointestinal Endoscopy 1992;12(1):19-23
Acute food impaction of the esophagus is not an unusual problem on an emergency ward. It has been termed the Steakhouse syndrome or the Backyard barbecue syndrome, indicating that meet is the obstrueting bolus in the majority of cases. Most esophageal stenoaes are located distally, and this ie also the area where most food impations occur. The obstruction quickly becomes apparent to the patient when further swallowing of food or liquid is impossible. Various obstructive lesions or motility disorders of the esophagus have been implicated as etiological factors in acute food impaction. Common,disorders include reflux esophagitis with stricture, hiatal hernia, abnormal rings and postoperative strictures at anastomotic sites. Malignant stenoses have been very rarely described. Recently we experienced of 4 patients who suffered from acute dysphagia after they had ingestion of food such as beef, pork, chicken, and dog meat, repectively. All of them were diagnased as steakhouse syndrome due to acute food impaction of the esophageal after examinations of esophagogram and endoscopy. They had hiatal hernia, esophageal cancer, reflux esophagitis with stricture, and abnormal ring as underlying diseases, repectively. All of them were treated with endoseopic removal of foreign body by a Dormia basket.
Animals
;
Chickens
;
Constriction, Pathologic
;
Deglutition
;
Deglutition Disorders
;
Dogs
;
Eating
;
Emergency Service, Hospital
;
Endoscopy
;
Esophageal Neoplasms
;
Esophagitis, Peptic
;
Esophagus*
;
Foreign Bodies
;
Hernia, Hiatal
;
Humans
;
Meat
6.A Case of Cutaneous Focal Mucinosis.
Mi Woo LEE ; Jee Ho CHOI ; Kyung Jeh SUNG ; Kee Chan MOON ; Jai Kyung KOH
Korean Journal of Dermatology 2000;38(5):683-686
No Abstract Available.
Mucinoses*
7.Confluent and Reticulated Papillomatosis Successfully Treated with Minocycline.
Sun Young LEE ; Jee Ho CHOI ; Kyung Jeh SUNG ; Kee Chan MOON ; Jai Koung KOH
Annals of Dermatology 2000;12(1):33-37
Confluent and reticulated papillomatosis (Gougerot and Carteaud) is a rare but clinically distinct dermatosis of which the etiology is unknown. We report 2 cases. One case is a 16-year-old boy who had a hyperpigmented reticulated eruption on the trunk and both arms and the other case is a 33-year-old man who had a similar eruption on the chest and back. The former, with previous treatment with oral and topical antifungal agent in another clinic didn't show any improvement and the latter case, with initial treatment of itraconazole did not improve his skin lesion. The rashes of two patients virtually disappeared with administration of minocycline. These observations indicate that the role of microorganisms sensitive to minocycline or anti- proliferative effect of minocycline could be presumed.
Adolescent
;
Adult
;
Arm
;
Exanthema
;
Humans
;
Itraconazole
;
Male
;
Minocycline*
;
Papilloma*
;
Skin
;
Skin Diseases
;
Thorax
8.Two Cases of Non-Surgical Removal of Intravascular Foreign Bodies.
Jean Man HUR ; Jong Il JEON ; Kyoung Geun JO ; Jae Woong CHOI ; Chan Hee MOON
Korean Circulation Journal 1997;27(9):922-926
One of the complication during or after subclavian vein cannulation is intravascular catheter or wire embolization. Although some studies have reported safety of retaining foreign body embolization, and even death. The intravascular foreign body can be removed surgically or non-surgically. With improvement in instrument technology and technique, percutaneous retrieval of intravascular foreign bodies has become a relatively common procedure. Commonly used methods to remove intravascular foreign bodies are loop snare and basket technique. Sometimes biopy forcep can be used. We have experienced 2 cases of non-surgical removal of intravascular foreign bodies. One of the foreign bodies was 7cm wire fragment in right atrium(RA), the other was a 50cm guide wire. We used the standard loop snare technique for removal of 7cm wire fragment in RA and stone removal basket and 3.0mm ACS PTCA balloon to remove the 50cm short guide wire.
Catheterization
;
Catheters
;
Foreign Bodies*
;
SNARE Proteins
;
Subclavian Vein
;
Surgical Instruments
9.Preimplantation Development and Apoptosis of Mouse Embryos in the Medium Containing Extracellualr Matrix.
Byung Moon KANG ; In Pyo SOHN ; Byung Mok CHUNG ; Kyoo Wan CHOI ; Myung Chan GYE
Korean Journal of Fertility and Sterility 2000;27(3):253-259
OBJECTIVE: To verify the effect of Matrigel, a ECM complex from Engelbreth-Holm-Swarm(EHS) mouse sarcoma on the preimplantation development and apoptosis of mouse fertilized eggs. METHOD: Late Pronucleus stage eggs were cultured through the blastocyst stage in the presence of Matrigel (0.5%, v/v). Characteristics of apoptosis and cell number assessed by Hoecst staining and TUNEL labeling at the blastocyst stage, respectively. RESULTS: Morphological development, number of cells per embryo was significantly increased but rate and number of TUNEL positive nuclei of the embryo were decreased in the presence of Matrigel. CONCLUSION: This result suggested that at low concentration of Matrigel improves both viability and morphological development in the preimplantation mouse embryos.
Animals
;
Apoptosis*
;
Blastocyst
;
Cell Count
;
Eggs
;
Embryonic Structures*
;
In Situ Nick-End Labeling
;
Mice*
;
Ovum
;
Sarcoma
;
Zygote
10.Influence of Repeated Exposures to Hypobaric Chamber on Acute Hypoxia Tolerance.
Chan Kwon JUNG ; Jae Moon CHOI ; Chang Suk KANG
Korean Journal of Aerospace and Environmental Medicine 2004;14(1):12-15
BACKGROUND: Acute hypoxia tolerance has been evaluated by the time of useful consciousness, subjective symptoms, cardiovascular changes, visual deterioration, psychological performance, and so forth. But these methods are either subjective, lacking strict objectivity, or too demanding to collect sufficient data. Pulse oximeter monitoring has come to be used not only in hospitals but in the aviation environment. This noninvasive oxygen monitoring apparatus warrants a highly objective analysis to investigate acute hypoxia tolerance. METHODS: Eight healthy male volunteers (20-25 years old) were exposed three times to a simulated altitude of 25,000 ft (7,620 m) at intervals of 7 days. We monitored arterial oxygen saturation (SaO2) and pulse rate by a pulse oximeter. The duration from taking the mask off to the time of 60% SaO2 was regarded as acute hypoxia tolerance. The venous hemoglobin concentration was measured a day before exposure to hypoxia. A questionnaire on the 14 subjective hypoxic symptoms was obtained after hypobaric chamber training. RESULTS: There were neither differences of acute hypoxia tolerance, hemoglobin concentration, nor pulse rate according to the repeated exposure of hypoxia. Four symptoms of sleepiness, fatigue, flushing and thinking impairment were sustained regardless of repeated exposures to hypoxia. But the incidence of symptoms of ear pain, anxiety, abdominal pain were reduced according to the repeated hypoxia. CONCLUSION: With pulse oximeter monitoring there was no difference between the values of time of 60% SaO2 in repeated exposures to hypoxia. The incidence of some subjective symptoms was reduced according to the repeated exposures to hypoxia.
Abdominal Pain
;
Altitude
;
Anoxia*
;
Anxiety
;
Aviation
;
Consciousness
;
Ear
;
Fatigue
;
Flushing
;
Heart Rate
;
Humans
;
Incidence
;
Male
;
Masks
;
Oxygen
;
Thinking
;
Volunteers
;
Surveys and Questionnaires