1.A Case of Transient Rectangular Alopecia after Neurovascular Embolization.
Soon Hyo KWON ; Sun Jae NA ; Sang Young BYUN ; Hyun Sun PARK ; Hyun Sun YOON ; Soyun CHO
Korean Journal of Dermatology 2013;51(7):566-568
No abstract available.
Alopecia
2.Evaluation of R Wave Amplitude Changes on Treadmill Exercise Testing.
Byung Soo AHN ; Tae Joon KIM ; Hyun NA ; Kook Won SUH ; Sung Gu KIM ; Young Joo KWON
Korean Circulation Journal 1985;15(2):203-208
For the evaluation of exercise induced R wave amplitude changes in lead V5 (big up tri, openR) and multiple leads(summation operatorR), we studied 20 normal subjects and 21 ischemic heart disease patients with positive exercise test. All underwent submaximal, multiple leads multistage treadmill exercise testing. 14 to 20 normal subjects(70%) there were decreased R wave amplitude in multiple leads on treadmill exercise testing. 16 of 21 patients(76%) there were increased R wave amplitude on treadmill exercise testing. In normal group, R wave amplitude between rest and exercise was significantly decreased in lead V5 and multiple leads. In patients grous, R wave amplitude between rest and exercise was significantly increased in lead V5 and multiple leads. It is suggested exercise induced R wave amplitude changes probably enhance the diagnostic reliability by ST segment changes on treadmill exercise testing.
Exercise Test*
;
Humans
;
Myocardial Ischemia
3.Change of Serum Electrolyte Level Following Succinycholine Administration.
Mi Na KWON ; Duck Mi YOON ; Yong Taek NAM ; Chung Hyun CHO
Korean Journal of Anesthesiology 1988;21(6):938-941
Succinylcholine(SCC) is well known to elevate the serum potassium level and to threaten life in some cases. In order to minimize the elevation of serum potassium following SCC, several attempts have been made such as SCC tamming and pretreatment with pancuronium or lidocaine or diazepam. Our study was undertaken to evaluate the change of serum potassium following induction in 60 patients divided into 7 different groups; group l. SCC 1mg/kg; group ll. SCC 2 mg/kg, grouplll, SCC 1mg/kg after SCC 10mg; group IV, SCC 1mg/kg after pancuronium 0.015mg/kg, group V. Pnacuronium 0.1mg/kg; group VI, SCC 1mg/kg after Lidocaine 1mg/kg; grou VII, SCC 1mg/kg after Diazepam 0.2mg/kg. The results were as follows: 1) Serum potassium were increased 0.14mEq/L in group l and 0.17 mEq/L in group ll. 2) Serum potassium were decreased in group lll, VI and VII than their control values but they were not statistically significant. 3) The decrease in serum potassium was most significant in group IV and V.
Calcium
;
Diazepam
;
Humans
;
Lidocaine
;
Pancuronium
;
Potassium
;
Succinylcholine
4.The resistance mechanisms of b-lactam antimicrobials in clinical isolates of Acinetobacter baumannii.
Na Young KWON ; Jae Deok KIM ; Hyun Joo PAI
The Korean Journal of Internal Medicine 2002;17(2):94-99
BACKGROUND: Despite increasing importance of Acinetobacter baumannii in nosocomial infections and rapid development of multi-antimicrobial resistance in this strain, the resistance mechanisms of beta-lactam antimicrobials in A. baumannii were not clearly defined. In order to observe the resistance mechanisms against beta-lactams and carbapenem, we characterized the production of beta-lactamases and outermembrane protein (OMP) profiles for the 44 clinical isolates of A. baumannii. METHODS: The MICs of antimicrobials were determined by agar dilution test. The secondary beta-lactamases were characterized by isoelectric focusing, polymerase chain reactions and nucleotide sequencing, and the production of chromosomal beta-lactamases was quantitated by spectrophotometric method. For two strains with an elevated MIC of carbapenem, outermembrane protein (OMP) profile was analyzed by ultracentrifugation of the sonicated bacteral cells and SDS-PAGE. RESULTS AND CONCLUSION: Twenty two or 4 of 44 strains produced TEM-1-like beta-lactamase or PER-1 extended-spectrum beta-lactamase, respectively. However, when we analyzed the MICs of several beta-lactams with the beta-lactamase production, the resistance level of beta-lactam was mainly determined by the production of chromosomal beta-lactamase, not by the secondary beta-lactamases in the clinical isolates of A. baumannii. In two strains with an elevated MIC of imipenem, a decrease or loss of about 35 kDa and 22 kDa proteins in OMP was observed, which suggested that the change of OMP played a role in carbapenem resistance.
Acinetobacter/*drug effects/isolation & purification/metabolism
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Acinetobacter Infections/drug therapy/microbiology
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Antibiotics, Lactam/*pharmacology
;
Bacterial Outer Membrane Proteins/biosynthesis
;
Carbapenems/pharmacology
;
Cross Infection/drug therapy/microbiology
;
Drug Resistance, Bacterial
;
Human
;
beta-Lactamases/biosynthesis
5.Induction versus expectant management in premature rupture of membranes at 34 to 37 weeks' gestation.
Joo Taek KWON ; Ho Myung HWANG ; Jong Hyun KIM ; Mi Ok NA ; Chul EUM ; Young Joo JUNG ; Sung Nam JO
Korean Journal of Obstetrics and Gynecology 2000;43(12):2135-2139
No abstract available.
Membranes*
;
Pregnancy*
;
Rupture*
7.Glomus Tumor Arising in a Nose.
Na Hyun KWON ; Ji Hyun LEE ; Kyung Moon KIM ; Si Yong KIM
Korean Journal of Dermatology 2011;49(5):461-463
Glomus tumor is composed of a benign neoplasm arising from the glomus body, which participates in thermal regulation. It usually presents as a circumscribed or solitary tumor characterized by paroxysmal pain. They are generally located in the distal extremities, and are most frequently present in the palms, soles, or nail beds. The author herein reports a case in which a glomus tumor was discovered in the nose. A glomus tumorin the nose is rare. In this case, a 66-year-old woman had a solitary, tender, bluish subcutaneous nodule with superficial telangiectasia on her nose for 20 years.
Aged
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Extremities
;
Female
;
Glomus Tumor
;
Humans
;
Nails
;
Nose
;
Telangiectasis
8.Gianotti-Crosti Syndrome Following Novel Influenza A (H1N1) Vaccination.
Na Hyun KWON ; Jung Eun KIM ; Baik Kee CHO ; Hyun Jeong PARK
Annals of Dermatology 2011;23(4):554-555
No abstract available.
Acrodermatitis
;
Influenza, Human
;
Vaccination
9.Sorbus rufopilosa Extract Exhibits Antioxidant and Anticancer Activities by Inducing Cell Cycle Arrest and Apoptosis in Human Colon Adenocarcinoma HT29 Cells.
You Na OH ; Soojung JIN ; Hyun Jin PARK ; Hyun Ju KWON ; Byung Woo KIM
Journal of Cancer Prevention 2016;21(4):249-256
BACKGROUND: Sorbus rufopilosa, a tsema rowan, is a species of the small ornamental trees in the genus Sorbus and the family Rosaceae found in East Asia. The bioactivities of S. rufopilosa have not yet been fully determined. The objective of this study is to evaluate the antioxidant and anticancer effects of ethanol extract of S. rufopilosa (EESR) and to determine the molecular mechanism of its anticancer activity in human colon carcinoma HT29 cells. METHODS: To examine the antioxidant activity of EESR, 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity assay was performed. Inhibitory effect of EESR on cancer cell growth and proliferation was determined by water-soluble tetrazolium salt assay. To investigate the mechanism of EESR-mediated cytotoxicity, HT29 cells were treated with various concentrations of EESR and the induction of cell cycle arrest and apoptosis was analyzed by flow cytometry, 4,6-diamidino-2-phenylindole staining, and Western blot analysis. RESULTS: EESR showed significant antioxidant activity and inhibitory effect on HT29 cell growth in a dose-dependent manner. EESR induced cell cycle arrest at G2/M phase in a dose-dependent manner by modulating cyclin B, cyclin-dependent kinase 1 (CDK1), and CDK inhibitor p21 expression. EESR-induced apoptosis was associated with the upregulation of p53, a death receptor Fas, and a pro-apoptotic protein Bax and the activation of caspase 3, 8, and 9, resulting in the degradation of PARP. CONCLUSIONS: EESR possessing antioxidant activity efficiently inhibits proliferation of HT29 cells by inducing both cell cycle arrest and apoptosis. EESR may be a possible candidate for the anticancer drug development.
Adenocarcinoma*
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Apoptosis*
;
Blotting, Western
;
Caspase 3
;
CDC2 Protein Kinase
;
Cell Cycle Checkpoints*
;
Cell Cycle*
;
Colon*
;
Cyclin B
;
Ethanol
;
Far East
;
Flow Cytometry
;
HT29 Cells*
;
Humans*
;
Rosacea
;
Rosaceae
;
Sorbus*
;
Trees
;
Up-Regulation
10.Pretibial Epidermolysis Bullosa with Nail Dystrophy in a Family.
Na Hyun KWON ; Jung Eun KIM ; Hyun Jeong PARK ; Baik Kee CHO
Korean Journal of Dermatology 2010;48(7):606-610
Dominant dystrophic epidermolysis bullosa-pretibial (DDEB-Pt) is an extremely rare subtype of dominant dystrophic epidermolysis bullosa (DDEB). Clinically, DDEB-Pt is characterized by trauma-induced blistering with scarring that predominantly affects the pretibial region and causes nail dystrophy. A 42-year-old woman had recurrent numerous pruritic lichenoid papules and plaques and a few vesicles on both the pretibial areas with toenail dystrophy for over 30 years. Her son and daughter also had the same lesions on their pretibial areas with associated dystrophic toe nails. Herein we report on a case of DDEB-Pt occurring in one family as a rare case.
Adult
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Blister
;
Cicatrix
;
Epidermolysis Bullosa
;
Epidermolysis Bullosa Dystrophica
;
Female
;
Humans
;
Nails
;
Nuclear Family
;
Toes