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유병욱,유정국,김동규,이은정,박정수 대한이비인후과학회 2005 대한이비인후과학회지 두경부외과학 Vol.48 No.4
Background and Objectives:The plunging ranula is a relatively uncommon phenomenon which represents a mucus escapingreaction due to the disruption of the sublingual gland. We recommend that plunging ranula be treated by surgery via an intraoralapproach rather than cervical approach. Materials and Methods:We present the cases of 15 patients managed at Ghil hospitalover the period of a year. A retrospective review of 15 patients with this condition was undertaken. All patients underwent removalof the sublingual gland combined with the evacuation of the ranula via an intraoral approach. Information was collected on age,sex, origin, history of onset, predisposing factors, treatment, and outcome of treatment. Results:Pain and temporary submaxillaryswelling were observed during postoperative 3 days. But, neither complication nor recurrence was observed in any patient. Histologicalobservation revealed no epithelial lining in any of the examined specimens. Conclusion:Removal of the sublingual glandcombined with the evacuation of the ranula via an intraoral approach was the reliable method.
알레르기비염 환자에서 Glutathione S-Transferase P1유전자의 다형성에 관한 연구
정유삼,김선태,최진호,유정국,이은정,황규성,황유진 대한이비인후과학회 2005 대한이비인후과학회지 두경부외과학 Vol.48 No.6
Background and Objectives:Genetic factors play a role in the etiology of allergic rhinitis. The glutathione S-transferase (GSTP1)is one of the detoxifying enzymes for oxidative stress. The purpose of this study is to examine Polymorphisms of whether thereis an association between some alleles of GSTP1 genes and allergic rhinitis. Subjects and Method:Patients with allergic rhinitiswere selected on the basis of the following criteria:1) watery rhinorrhea, sneezing, nasal obstruction and/or itching for longer3months and 2) positive reaction at the allergic skin prick test for DP, DF allergen and 3) positive reaction at specific IgE RASTfor DP, DF allergen. GSTP1 gene polymorphisms in exon5 (Ile105Val) were analyzed by polymerase chain reaction (PCR) withrestriction fragment length polymorphisms (RFLP) in 149 patients with allergic rhinitis and 156 healthy control subjects.Results:In allergic rhinitis, Ile105/Ile105 were 106 cases (71.1%), Ile105/Val105 were 42 cases (28.2%), Val105/Val105 were 1case (0.7%) and in normal controls, Ile105/Ile105 were 100 cases (64.1%), Ile105/Val105 were 45 cases (28.8%), Val105/Val105were 11 cases (7.1%)(p=0.004). Conclusion:Genetic polymorphism of Val105/Val105 in GSTP1 may be protective genotypesin allergic rhinitis.
PD 박막 시료의 제작 조건이 수소 흡수-방출 동역학에 미치는 영향에 관한 연구
엄대현(Dae Hyun Um),유정국(Joung Gouk Yoo),조영신(Young Sin Cho) 한국수소및신에너지학회 1998 한국수소 및 신에너지학회논문집 Vol.9 No.3
This study was conducted to know to the effect of Pd film(180Å thick) evaporation condition on the kinetics of hydrogen absorption-desorption. The activation energy of the forward reaction, the activation energy of the backward reaction, and the enthalpy were calculated by hydrogen absorption-desorption in α-phase.(25∼50℃ temperature) The activation energy of the forward reaction of Pd film, which is made at room temperature, is 6.4 ±0.4 ㎉/㏖ H and of the backward reaction 8.4 ±1.5 ㎉/㏖ H, which yields the reaction enthalpy -2㎉/㏖ H. The activation energy of forward reaction of Pd film, which is made at 300 ℃, is -0.18 ±0.61 ㎉/㏖ H and of the backward reaction -0.17 ±2.3 ㎉/㏖ H. The sample of 300℃ is more stable than the sample of room temperature in its struciural compactness and resistance value but standard error of result of 300℃ sample is higher than sample of room temperature do.