1.The Usage of Micropigmentation in Temporal Triangular Alopecia.
Sang Ju LEE ; Boncheol GOO ; Mi Ryung RHO ; Seung Hun LEE
Korean Journal of Dermatology 2005;43(4):531-533
Temporal triangular alopecia is a triangular or oval shaped non-scarring alopecia, occurring on the temporal side of the scalp, which was first reported by Sabourand in 1950. It usually occurs in the childhood. There is no treatment for this disorder except for surgery. In this article, we report a case of focal alopecia which was successfully treated with micropigmentation.
Alopecia*
;
Scalp
2.A Case of Acute Hemorrhagic Edema of Infancy.
Mi Ryung ROH ; Hye Jin CHUNG ; Ju Hee LEE
Yonsei Medical Journal 2004;45(3):523-526
Acute hemorrhagic edema of infancy is an unusual form of leukocytoclastic vasculitis occuring in children from the age 4 months to 2 years. The etiology remains unknown. Numerous studies, however, suggest acute hemorrhagic edema of infancy as an immune-mediated vasculitis in response to a variety of antigenic stimuli. We report a case of an acute hemorrhagic edema of infancy; 11-month-old boy with a history of fever for 3 days and a history of purpuric rash on the extremities, trunk, buttock and oral mucosa for 2 days.
Acute Disease
;
Biopsy
;
Edema/immunology/*pathology
;
Exanthema/immunology/pathology
;
Hemorrhage/immunology/*pathology
;
Human
;
Infant
;
Male
;
Vasculitis, Hypersensitivity/immunology/*pathology
3.Transitioning Adolescents with Congenital Heart Disease into Adult Health Care.
Journal of the Korean Pediatric Cardiology Society 2004;8(1):135-141
No Abstract available.
Adolescent*
;
Adult*
;
Delivery of Health Care*
;
Heart Defects, Congenital*
;
Humans
4.Expression of Phospholipase C Isozymes in Radiation-Induced Tissue Damage and Subsequent Regeneration of Murine Small Intestine.
Sung Sook KIM ; Yeong Ju WOO ; Ju Ryung HUH ; Jung Hyun RYU ; Kyung Ja LEE ; Jung Sik LEE ; Pann Ghill SUH
Korean Journal of Pathology 1998;32(3):155-161
Phospholipase C (PLC) isozymes play significant roles in transmembrane signal transduction. PLC- 1 is one of the key regulatory enzymes in signal transduction for cellular proliferation and differentiation. The exact mechanisms of this signal transduction of tissue damage and subsequent regeneration, however, were not clearly documented. This study was planned to determine the biological significance of PLC isozymes following irradiation in rat small intestine. Sprague-Dawley rats were irradiated to the entire body by a single dose of 8 Gy. The rats were divided into 5 groups according to the sacrifice days after irradiation. The expression of PLCs in each group was examined by the immunohistochemistry and immunoblotting. The histologic findings were observed using hematoxylin and eosin staining. The regenerative activity, which was estimated by mitotic count and proliferatin cell nuclear antigen (PCNA) immunostaining, was highest in Group III (5th day after irradiation). By the immunohistochemistry, the expression of PLC- 1 was higher in Group III and Group II (3rd day after irradiation), and was found in the regenerative zone of the mucosa. The expression of PLC- 1 was highest in Group I (1st day after irradiation) and was dominantly in the damaged surface epithelium. The immunostaining of PLC- 1 was negative in all groups. The results of the immunoblotting study was compatible to that of the immunohistochemical study. Group II and III showed positive bands for PLC- 1, and group I and II for PLC- 1. These results suggest that PLC- 1 plays a significant role in mucosal regeneration following irradiation. PLC- 1 may play a role in radiation - induced mucosal damage.
Animals
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Cell Proliferation
;
Eosine Yellowish-(YS)
;
Epithelium
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Hematoxylin
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Immunoblotting
;
Immunohistochemistry
;
Intestine, Small*
;
Isoenzymes*
;
Mucous Membrane
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Phospholipases*
;
Rats
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Rats, Sprague-Dawley
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Regeneration*
;
Signal Transduction
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Type C Phospholipases*
5.Relationship between Bone Mineral Density and Pulmonary Function in Adult Females.
Keun Soo LEE ; Ju Ryung LEE ; Chang Ho YOUN ; Jung Bum LEE
Journal of the Korean Academy of Family Medicine 2006;27(8):607-611
BACKGROUND: Reduced pulmonary function is a common outcome in pulmonary patients with reduced bone mineral density. But, there are few studies on the relationship in adult females who do not have pulmonary diseases. Thus, this study was to assess the correlation between bone mineral density and pulmonary function in healthy women. METHODS: A total of 193 subjects was selected among adult females who visited a health promotion center. BMD was measured by Dual energy X-ray absorptiometry and T-score of lumbar spine (L1-L4) was used. Pulmonary function was measured by spirometer and questionnaire survey was used to obtain information from the subjects. RESULTS: Mean T-score of L-spine was -0.284, FEV1 (pred %) was 98.82% and BMI was 23.50 kg/m2. The results showed positive correlation (0.128) between BMD and FEV1 by multiple regression analysis (P<0.05). CONCLUSION: As FEV1 of subjects increased, BMD increased in adult women who did not have pulmonary diseases.
Absorptiometry, Photon
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Adult*
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Bone Density*
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Female
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Health Promotion
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Humans
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Lung Diseases
;
Spine
;
Surveys and Questionnaires
6.Effects of Infrared Radiation on Skin Photo-Aging and Pigmentation.
Ju Hee LEE ; Mi Ryung ROH ; Kwang Hoon LEE
Yonsei Medical Journal 2006;47(4):485-490
Infrared radiation is increasingly and uncritically used for cosmetic and wellness purposes, despite the poorly understood biologic effects of such treatments on humans. In the present study, we investigated the effects of infrared radiation on collagen and elastin production in dermal fibroblasts, as well as the clinical and histopathologic effects of infrared radiation on photo-aged facial skin lesions. In order to determine the effects of infrared radiation on collagen and elastin production, dermal fibroblasts were exposed to infrared radiation for varying lengths of time and collagen and elastin contents were subsequently determined. Additionally, 20 patients with mild to moderate facial wrinkles and hyperpigmented lesions received daily treatments of far infrared radiation (900 to 1000micronm) for six-months. During the treatment, patients and a medical observer conducted independent photographic and clinical evaluations every 4 weeks, and skin biopsies were obtained for histological analysis at baseline and one month post-treatment. We found that the content of collagen and elastin produced by the fibroblasts increased after infrared radiation, and that this increase was proportional to the duration of irradiation exposure. Following 6 months of treatment, all patients reported good (51-75%) improvements in skin texture and roughness. Additionally, patients noted fair (25-50%) improvement in color tone of the skin; however, improvements in hyperpigmented lesions were not observed. Objective medical evaluation of the patients indicated that roughness and laxity were fairly improved, but there was no significant improvement in hyperpigmented lesions. Histological examination failed to reveal any differences as well. These results suggest that infrared radiation may have beneficial effects on skin texture and wrinkles by increasing collagen and elastin contents from the stimulated fibroblasts. Therefore, skin treatment with infrared radiation may be an effective and safe non-ablative remodeling method, and may also be useful in the treatment of photo-aged skin.
Time Factors
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Skin Pigmentation/*radiation effects
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*Skin Aging
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Skin/*radiation effects
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Middle Aged
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*Light
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*Infrared Rays
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Humans
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Fibroblasts/metabolism
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Female
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Elastin/metabolism
;
Collagen/metabolism
;
Biopsy
;
Adult
7.Palmar Digital Vein Thrombosis.
Eun Ju LEE ; Bark Lynn LEW ; Woo Young SIM ; Hee Ryung CHO
Korean Journal of Dermatology 2011;49(4):385-387
Palmar digital vein thrombosis causing one or more nodules seems to be a relatively rare condition. Only 20 cases of palmar digital vein thrombosis have been reported worldwide in the English language literature. It presents with a painful, firm and blue nodule located at or in close proximity to one of the flexion creases. The etiology remains unknown, but changes in the vessel wall related to the anatomic characteristics of the palmar digital veins may play a role, along with intraluminal stasis. Two patients with blue nodule located in close proximity to flexion creases on the volar side of the finger presented to our hospital. Histological examination showed organizing thrombus within the dilated vessel. We report here on these two cases of palmar digital vein thrombosis.
Fingers
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Glycosaminoglycans
;
Humans
;
Thrombosis
;
Veins
8.Long Term Effects of Hospital Information System on Nurses' Job Pattern and Satisfaction, and Attitudes Toward HIS.
Myong Hwa PARK ; Chul Ho JUNG ; Yoon Nyun KIM ; Sung Ryung LEE ; Kyung Il YOON ; Ki Jung JU
Journal of Korean Society of Medical Informatics 2005;11(4):361-370
OBJECTIVE: The purpose of this study was to examine the long-term effects of Hospital Information System(HIS) on nurses' job pattern and satisfaction, and attitudes toward electronic medical record system. METHODS: Prospective survey using repeated measures design was performed to compare the changes between 2 years and 4 years after introduction of HIS in a tertiary hospital. Participants were 374 nurses working in the target hospital. Questionnaire was developed by researchers based on Walker, Eyman, Krall, Prophet, and Flanagan(1996)'s study and consisted of 21 questions about job pattern, job satisfaction, and attitudes toward computerization and paper record system. RESULTS: Overall time for documentation, shift reporting, communication with other departments were reduced. Otherwise, direct nursing time was not increased after HIS. Nurses showed positive responses on changes of job pattern after HIS while job satisfaction has been decreased. In addition, nurses' attitudes toward hospital information system and paper medical record system showed they were accepting computerized information system. CONCLUSION: This study identified the long-term positive effects of HIS and the need for nursing sensitive hospital information system.
Electronic Health Records
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Hospital Information Systems*
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Information Systems
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Job Satisfaction
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Medical Records
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Nursing
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Prospective Studies
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Surveys and Questionnaires
;
Tertiary Care Centers
9.Tumor Recurrence in Hepatocellular Carcinoma Patients after Radiofrequency Ablation: Portal Hypertension as an Indicator of Recurrence of Hepatocellular Carcinoma
Seong Won JANG ; Yun Ku CHO ; Ju Won KIM ; Je Ryung GIL ; Mi Young KIM ; Young LEE
Journal of the Korean Radiological Society 2018;79(5):264-270
PURPOSE:
To evaluate the effect of portal hypertension on the tumor recurrence in patients with hepatocellular carcinoma (HCC) and without hepatic decompression following radiofrequency ablation (RFA).
MATERIALS AND METHODS:
Treatment-naïve HCC patients within the Milan criteria and with Child-Pugh class A were included in this study, who had performed RFA in our hospital between January 2010 and March 2017. Univariate and multivariate analyses using the Cox proportional hazard model were performed to find the predictors of local or distant tumor recurrence.
RESULTS:
Overall, 178 patients were included in this study. Median follow-up period was 40.2 months. The difference in the local tumor progression rates depending on the absence or presence of portal hypertension was not statistically significant (p = 0.195). The 1-, 3-, and 5-year distant intrahepatic tumor spread rates were 6.6%, 29.5%, and 537% in patients without portal hypertension, and 23.4%, 51.9%, and 63.6% in patients with portal hypertension, respectively. The difference was statistically significant (p = 0.011). Univariate and multivariate analysis showed that portal hypertension was an independent predictor for distant intrahepatic tumor spread (p = 0.008).
CONCLUSION
For HCC patients with Child-Pugh class A, portal hypertension adversely affected distant intrahepatic tumor progression.
10.Quantification of Thioguanine in DNA Using Liquid Chromatography-Tandem Mass Spectrometry for Routine Thiopurine Drug Monitoring in Patients With Pediatric Acute Lymphoblastic Leukemia
Rihwa CHOI ; Mi Ryung CHUN ; Jisook PARK ; Ji Won LEE ; Hee Young JU ; Hee Won CHO ; Ju Kyung HYUN ; Hong Hoe KOO ; Eun Sang YI ; Soo-Youn LEE
Annals of Laboratory Medicine 2021;41(2):145-154
Background:
We developed an assay to measure DNA-incorporated 6-thioguanine (DNATG) and validated its clinical applicability in Korean pediatric patients with acute lymphoblastic leukemia (ALL) in order to improve individualized thiopurine treatment and reduce the life-threatening cytotoxicity.
Methods:
The DNA-TG assay was developed based on liquid chromatography-tandem mass spectrometry, with isotope-labeled TG-d3 and guanine-d3 as internal standards.This method was applied to 257 samples of pediatric ALL patients. The DNA-TG level was compared with erythrocyte TG nucleotide (RBC-TGN) level in relation to the TPMT and NUDT15 genotypes, which affect thiopurine metabolism, using Spearman’s rank test and repeated measure ANOVA.
Results:
For DNA-TG quantification, a linearity range of 10.0-5,000.0 fmol TG/µg DNA;bias for accuracy of –10.4% –3.5%; coefficient of variation for intra- and inter-day precision of 3.4% and 5.8% at 80 fmol TG/µg DNA and of 4.9% and 5.3% at 800 fmol TG/µg DNA, respectively; and recovery of 85.7%–116.2% were achieved without matrix effects or carry-over. The median DNA-TG level in the 257 samples was 106.0 fmol TG/µg DNA (interquartile range, 75.8–150.9). There was a strong correlation between DNA-TG and RBC-TGN levels (ρ = 0.68,ρ < 0.0001). The DNA-TG/RBC-TGN ratio was significantly higher in NUDT15 intermediate metabolizers (*1/*2 and *1/*3) than in patients with wildtype alleles (ρ < 0.0001).
Conclusions
This simple and sensitive method for measuring DNA-TG level can improve therapeutic drug monitoring for thiopurine treatment.