상악 유전치부의 치간공간과 인접면 우식에 관한 조사연구

김진영,이광희,라지영,안소연,정승열,임경욱,반재혁 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.3

본 연구는 상악 유전치부의 치간공간과 인접면 우식의 상관관계를 평가해보고자 하였다. 익산에 거주하는 만3-7세의 어린이 555명을 대상으로 하였으며 탐침이 통과하는지 여부로 치간공간이 있음과 없음으로 분류하였고 와동이 형성되었거나 법랑질 표면이 연화되었을 경우 인접면 우식이 존재하는 것으로 판단하였다. 연구 결과 다음과 같은 결론을 얻었다. 1. 상악 유전치부의 치간공간은 영장류 공간이 77.4%, 발육공간이 유측절치와 유중절치 사이에서 54.4%, 양유중절치 사이에서 39.0%로 나타났다. 2. 인접면 우식발생율은 우측유견치가 6.3%, 우측유측절치가 14.7%, 우측유중절치가 33.5%, 좌측유중절치가 33.7%, 좌측유측절치가 16.0%, 좌측유견치가 4.7%로 나타났다. 3. 치간공간의 수가 많을수록 상악 유전치의 우식발생율은 낮아졌으나 그 상관관계(r=0.024)는 미약하였다. 4. 상악 유전치부에 공간이 존재하지 않을 경우 존재할 때 보다 평균 우식발생율이 높았으며, 치간공간이 전혀 존재하지 않는 경우 한 곳이라도 치간공간이 존재하는 경우보다 평균 우식발생율이 2배 이상 높은 것으로 나타났다. The purpose of this study was to assess the relationship between interdental spaces and proximal caries in maxillary anterior primary teeth. 555 children aged 3-7 inhabit in Iksan were divided into two groups, depending on the presence of interdental space which was detected by a dental explorer. They were determined to have proximal caries if cavity was formed or the enamel surface was softened. The results were as follows : 1. Regarding interdental spaces, 77.4% had primate spaces; 54.4% had developmental spaces between central and lateral incisor, and 39.0% between central incisors. 2. Interproximal caries incidences in right primary canine, lateral incisor, and central incisor were 6.3%, 14.7%, and 33.5%, respectively. Also interproximal caries incidences in left primary central incisor, lateral incisor, and canine were 33.7%, 16.0%, and 4.7%, respectively. 3. Children with more interdental spaces had less caries incidence, but the relationship was weak(r=-0.024). 4. The mean caries incidence was higher in absence of interdental space of maxillary primary incisors than in presence of space. The mean caries incidence with no interdental space was twice as high as that with presence of interdental space.

위 MALT 림프종에서 다발성 림프절 전이로 오인된 동시성 림프절 결핵 1예

김성은,김규종,김도현,송준영,문대성,장리라,유찬희,문원,박무인,박선자,김영옥 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2

28세 남자가 내시경적 점막절제술을 통해 저등급 위MALT 림프종으로 진단되었다. 병기설정을 위해 18F-FDG PET 검사를 시행하였고 우측 쇄골상부, 우측상/하부 기관주위, AP window 부위에 강한 섭취가 관찰되어 전이성 림프절로 판단하였다. 그러나, 우측 쇄골상부 림프절에서 시행한 절제생검에서 만성육아종성염증소견이 관찰되었고 조직의 결핵 중합효소연쇄반응에서도 양성 반응을 보였다. 2개월간 항결핵제의 사용 후 시행한 추적 컴퓨터단층촬영 검사에서 림프절 크기의 감소를 보여 최종적으로 위 MALT 림프종에서 광범위 림프절 전이로 오인된 동시성 림프절 결핵으로 진단되었다. A 28-year-old man was diagnosed as gastric MALT lymphoma in diagnostic EMR (endoscopic mucosal resection). He subsequently underwent an 18F-FDG PET. 18F-FDG PET showed intense multifocal uptake in right supraclavicular, right upper and lower paratracheal, and AP window areas that was considered radiologically to represent widespread metastatic lymphadenopathy. Excisional biopsy of a supraclavicular lymph node, however, revealed chronic granulomatous lymphadenitis with a positive reaction of Tb-nested PCR. After antituberculosis treatment for 2 months, a follow-up CT scan showed complete resolution of the lesions. Intense 18F-FDG uptake could be due to an infectious process such as synchronous tuberculous lymphadenitis. Therefore, this could mimic a malignant condition such as lymphoma with extensive lymph node metastasis due to a false-positive finding, which may lead to a misdiagnosis.

인슐린 비의존형 당뇨병 환자에서의 당뇨병 유병기간에 의한 미세혈관 합병증 발생 시기의 추정

원영준(Young Jun Won),신영구(Young Goo Shin),심광용(Kwang Yong Shim),홍애라(Ae La Hong),송창호(Chang Ho Song),정춘희(Choon Hee Chung),서병기(Byeong Ki Seo) 대한내과학회 1996 대한내과학회지 Vol.51 No.4

N/A Objectives: Microvascular complications in NID-DM patients have a positive correlation with the duration of diabetes. However, it is difficult to know about the duration of diabetic period before clinical diagnosis that the microvascular complications have been progressed, Harris et al previously presented in Diabetes Care that the patients with NIDDM had the prediagnostic period of 4-7 years before clinical diagnosis. We can find frequently the microvascular complications at the time of clinical diagnosis of diabetes, and thus assume that the microvascular complications have developed before the clinical diagnosis of diabetes. We estimate the periods, between the onset of diabetes and its clinical diagnosis in Korean diabetic patients. Methods - We studied 281 NIDDM patients who were admitted at Wonju Christian Hospital from January 1993 to July 1994. Weighted linear regression was performed to examine the relationship between the duration of diabetes and the prevalence of microvascular complications of diabetes. We can find the linear relationship between the two parameters (prevalence and duration of diabetes). By extraplotting at this linear relationship to the time when the prevalence of microvaseular complication was estimated to be zero, the time of onset of detectable complication was calculated. Results: 1) Prevalence of neuropathy at clinical diagnosis of diabetes was estimated to be 35.9%, and neuropathy has occurred 10.6 years before the clinical diagnosis of NIDDM. 2) Prevalencd of retinopathy at clinical diagnosis of diabetes was estimated to be 21.6%, and retinopathy has occurred 6.4 years before the clinical diagnosis of NIDDM. 3) In the cases of nephropathy, the correlation between the duration of diabetes and the prevalence was not statistically significant. Conclusion: In our study, the microvascular complications may develop several years before the clinical diagnosis of diabetes, and therefore, checkup for the microvascular complications is essential at the diagnosis of diabetes.

Electrically Stimulated Relaxation is not Mediated by GABA in Cat Lower Esophageal Sphincter Muscle

Park Sun-Young,Shin Chang-Yell,Song Hyun-Ju,Min Young-Sil,La Hyen-O,Lee Jun-Woo,Kim Do-Young,Je Hyun-Dong,Sohn Uy-Dong The Pharmaceutical Society of Korea 2006 Archives of Pharmacal Research Vol.29 No.5

This study examined the effect of Gamma-Amino butyric acid (GABA) and selective GABA receptor related drugs on the electrically stimulated relaxation in the lower esophageal sphincter muscle (LES) of a cat. Tetrodotoxin $(10^{-6}\;M)$ suppressed the electrically stimulated (0.5-5 Hz) relaxation of the LES. However, guanethidine $(10^{-6}\;M)$ and atropine $(10^{-6}\;M)$ had no effect indicating that the relaxations were neurally mediated via the nonadrenergic and noncholinergic (NANC) pathways. NG-nitro-L-arginine methyl ester ($10^{-4}M$, L-NAME) also inhibited the relaxant response but did not completely abolish the electrically stimulated relaxation with 60% inhibition, which suggests the involvement of nitric oxide as an inhibitory transmitter. This study examined the role of GABA, an inhibitory neurotransmitter, on neurally mediated LES relaxation. GABA ($10^{-3}-10^{-5}M$, non selective receptor agonist), muscimol ($10^{-3}-10^{-5}M$, GABA-A agonist), and baclofen ($10^{-3}-10^{-5}M$, GABA-B agonist) had no significant effect on the electrically stimulated relaxation. Moreover, bicuculline ($10^{-5}M$, GABA-A antagonist) and phaclofen ($10^{-5}M$, GABA-B antagonist) had no inhibitory effect on the electrically stimulated relaxation. This suggests that GABA and the GABA receptor are not involved in the electrically stimulated NANC relaxation in the cat LES.

Efficient adsorption of sulfide gas using porous zeolite powder

Lee Sang-hwa,Jeon Young Pyo,Lee Young Jun,La Yunju,Song Jun Yong,Park Yong Yeol,Lee Eun Jung,Jeon Ok Sung,Park Sang Yoon,Yoo Young Joon,Yang Keun-Hyeok 한국물리학회 2021 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.79 No.12

We prepared zeolite 13× beads and 10% zeolite 13× bead-embedded water-permeable blocks using porous zeolite powder. The difference in the surface state and pore structure of the zeolite powder and bead was analyzed through scanning electron microscopy and Brunauer–Emmett–Teller measurements. The process for making zeolite beads partially damaged their surface. Furthermore, the pore structure of the zeolite beads changed from micropores to a mixture of micro- and mesopores. The sulfur oxide ( SOx) adsorption efficiency of zeolite powder, beads, and blocks was evaluated. The initial SOx adsorption efficiency of zeolite beads decreased after washing ten times, but the increase in SOx concentration after initial adsorption was very small. The SOx adsorption efficiency of the block was very high even after washing ten times. These results indicate that the block is promising for applications requiring the adsorption of harmful gases such as SOx and NOx.

Case Report : A Case of Enteropathy-Type T-Cell Lymphoma Diagnosed by Small Bowel Enteroscopy: A Perspective on Imaging-Enhanced Endoscopy

( Jun Yong Bae ),( Bong Min Ko ),( Seul Ki Min ),( Jong Chan Lee ),( Gun Wha Lee ),( La Young Yoon ),( Su Jin Hong ),( Moon Sung Lee ),( Hee Kyung Kim ) The Editorial Office of Gut and Liver 2012 Gut and Liver Vol.6 No.4

CEnteropathy-type T-cell lymphoma (ETL) or enteropathy-associated T-cell lymphoma is a very rare malignant intestinal tumor. ETL is usually diagnosed by surgery. Endoscopic findings of ETL are not well known, and there are few reports of findings from endoscopy that has been performed only using white light. Additionally, there are no definite treatment guidelines for ETL. Therefore, we report a case of ETL diagnosed by enteroscopy with imaging-enhanced endoscopy and also review recently developed treatment options. (Gut Liver 2012;6:516-519)

Tunable Metamaterial Absorber Using Ferromagnetic Resonance

La Yunju,Jeon Ok Sung,Lee Young Jun,Park Sang Yoon,Yoo Young Joon,Lim Taekyung,Yang KeunHyeok 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.77 No.11

We simulated a study on a tunable metamaterial absorber using ferrite rubber as a dielectric substrate with ferromagnetic properties. The proposed structure employs ferromagnetic resonance, which utilizes the coupling of an applied magnetic field and an incident electromagnetic wave. As the magnitude of the applied magnetic field increases, it can be seen that the absorption peak moves to a higher frequency. The adjustment of the absorption frequency using the proposed method is expected to be applied to various fields such as sensors, electronic devices and 5G communication antennas.

Metamaterial’s Acceptable Level of Wrecked Meta-pattern

La Yunju,Jeon Ok Sung,Lee Young Jun,Park Sang Yoon,Yoo Young Joon,Lim Taekyung,Yang Keun-Hyeok 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.77 No.11

The periodic arrangement in metamaterial (MM) should be maintained to ensure the extraordinary properties, but how much periodic irregularity is allowed generally without degrading the properties is not only important for the tolerance in fabrication but interesting scientifically. We introduce the wrecked effect in MM utilizing perfect MM absorber in visible and GHz ranges. The original perfect MM properties turn out to be maintained until MM is destroyed to 10%. In the view of MM absorber, even 40% broken meta-pattern are still good for absorption higher than 93%, the criterion for perfect absorption. The wrecked pattern over 80% result in absorption of nearly 50% in both simulation and experiment, which is even higher than expected. These results can lead to broad applications at the present and in near future through more convenient and cost-effective research and development on MMs.

Poster Session 2 : Oral Presentation ; Immunology : Activation of Macrophage migration inhibitory factor (MIF) expression in human pherypheral T cells by negative cross talk between the NF-κB and AP-1 signaling pathway

( Young Mee Moon ),( Mi La Cho ),( Kyoung Woon Kim ),( Mi Kyung Park ),( So Yeon Min ),( Chong Hyeon Yoon ),( Jun Ki Min ),( Sung Hwan Park ),( Ho Youn Kim ) 한국생화학분자생물학회 (구 한국생화학회) 2005 62회 KSBMB Annual Meeting in 2005 Vol.- No.-

실태분석을 통한 화환신용장 제조건의 특징에 관한 고찰

라공우,신용준 경인여자대학 2002 경인논집 Vol.- No.9

Each national bank has different forms for Documentary of credits in spite of worldwide standardization trend because each country provides credit practice based on their own commercial usage or credit customs. Hence there are common characteristics for each country in the Terms and Conditions of Documentary of Credits. Total 214(102 export credits, 112 import credits) of Documentary of Credits that are issued and advised by ○○ Bank on 5th and 6th March 2000 has been obtained. Analyzing special conditions in Credits and practically evaluating local and general characteristics through investigating Terms and Conditions for each country and region this study examined contents of special conditions for Credits that export traders and foreign exchange banks need to take great care to prevent disputes in advance. The analysis of the special conditions for Credits specifies following matters to be attended to prevent international disputes dealing with Credits. First, when a specific surface line is assigned the export trader has to check if there is an assigned liner after receiving Credits. Second, for the Credits that is nominated a negotiating bank, negotiation has to be done in the negotiating bank and if unavoidably the Credits is negotiated through other bank, the next negotiating should be done through the nominated bank. Third, permission of Credits transference has to be approved by the import trader as the export trader requests. Fourth, all the mentioned items such as the credit number on the documents have to be recorded corresponding to terms and conditions of the Credits. Finally, if there are statements that can cause confusion or that are hard to be fulfilled, the beneficiary has to report to the Credit applicant and request to delete or modify them so no one will be at a disadvantage.