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서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)
김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3
Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 45.5% in 1997.
토끼 수막염 모델을 이용한 다제내성 폐렴구균에 대한 Meropenem의 치료 효과
김신우,진정화,강수정,정숙인,김연숙,기현균,김춘관,이혁,김성민,백경란,송재훈 대한화학요법학회 2001 대한화학요법학회지 Vol.19 No.1
목적 : 다제내성 폐렴구균에 의한 수막염은 기존과 단일 항생제로는 근치가 어려워 ceftriaxone과 vancomycin 혹은 rifampin의 병용요법이 권유되고 있다. 다제내성 폐렴구균에 사용할 수 있는 다른 약제 중 meropenem은 시험관내 폐렴구균에 대한 항균력이 좋고 경련 등의 중추신경계 부작용이 거의 없어 다제내성 폐렴구균에 의한 수막염의 치료에 이용할 수 있을 것으로 기대되나 이에 대한 자료가 매우 부족한 상태이다. 이에 연자 등은 meropenem과 meropenem+vancomycin의 병용요법이 다제내성 폐렴구균 수막염의 치료에 효과가 있는지를 토끼 수막염 동물 모델을 이용하여 검증하고자 하였다. 방법 : 인체에서 수막염을 일으킨 다제내성 폐렴구균 균주(penicillin MIC 2, ceftriaxone MIC 4, meropenem MIC 0.5㎍/㎖)를 토끼 척수강 내에 직접 주입하여 수막염을 유발한 후 ceftriaxone, vancomycin, rifampin, meropenem의 단일 항균요법, ceftriaxone+vancomycin, ceftriaxone+rifampin, meropenem+vancomycin의 병용요법 간에 치료 효과의 차이를 비교 하였다. 각 치료군은 6 마리의 토끼를 대상으로 하였다. 각각의 항생제는 5 시간 간격으로 2번 정주하였으며, ceftriaxone은 1회 투여하였다. 균주 주입 후 각 치료군이 토끼에서 치료 후 0, 5, 10, 24 시간에 척수액을 채취하여 균주의 수를 측정하여 24시간째의 살균 여부를 최종 치료 효과로 판정하였다. 결과 : meropenem 단독 요법은 10시간째에 모든 균주를 살균하였으나 24시간 째에 다시 균의 성장이 관찰되었으며, meropenem+vancomycin의 병용요법은 단독 약제보다 우수한 살균효과를 보였으나 상승작용은 없었다. 결론 : meropenem+vancomycin의 병용요법은 기존의 ceftriaxone+vancomycin보다 24시간째에 더 큰 균의 감소 경향을 보여(P=0.054) 임상에서 사용이 가능할 것으로 기대되며 향후 실제 수막염 환자에서의 임상효과를 증명하는 연구가 필요할 것으로 생각된다. Background : Because antimicrobial monotherapy for pneumococcal meningitis caused by penicillin-resistant strains is not satisfactory, ceftriaxone+vancomycin [C+V] or ceftriaxone+rifampin [C+R] regimens are recommended. Meropenern [M] is one of the monotherapy options for penicillin-resistant pneumococcal meningitis due to good in-vitro activity against pneumococci and rare adverse reactions in CNS. But there have been few reports in the efficacy of meropenern against pneumococcal meningitis. We evaluated therapeutic efficacy of the meropenern and meropenem+vancomycin in a rabbit model of meningitis caused by penicillin-resistant S. pneumoniae (PRSP). Methods : Meningitis was induced by intracistemal inoculation of a pneumococcal strain isolated from a patient with meningitis (MIC; penicillin 2, ceftriaxone 4, meropenem 0.5 g/㎖). Bacterial concentrations in the CSF were measured at 0, 5, 10, and 24 h after therapy was started. Therapeutic efficacy was evaluated by the final bacterial concentration in the CSF at 24 h. Results : C+V cleared the CSF at 10 h, but regrowth of bacteria was noted at 24 h. Meropenem monotherapy resulted in sterilization at 10 h but regrowth at 24 h. M+V was superior to M or V monotherapy but did not show synergism. Therapeutic efficacy of M+V was at least equal or superior to that of C+V (P = 0.054). Conclusion : Meropenem+vancomycin regimen could be one of the useful options in the treatment of PRSP meningitis. Clinical trials to evaluate the M or M +V are warranted in the future.
Soo‑Bae Kim,Jae‑Gil Jung,Young‑Hee Cho,Su‑Hyeon Kim,Kwangjun Euh,Jung‑Moo Lee 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.7
The effect of ultrasonic melt treatment (UST) on the solidification microstructure of an Al–5Ti–1B alloy containing highvolumefractions of Al3Tiand TiB2particles is investigated for various UST times with different melt holding times. Theas-cast Al–5Ti–1B alloy is composed of TiB2and polygonal Al3Tiparticles (present prior to UST), plate-like Al3Tiparticles,and Al grains (formed during UST and/or solidification). The UST causes a size reduction and homogeneous distributionof the TiB2-agglomerated region containing many submicron-sized TiB2particles pushed to the grain boundaries. The USTslightly decreases the size and improves the distribution of polygonal Al3Tiparticles enriched in the TiB2-agglomeratedregion. Unlike the TiB2and polygonal Al3Tiparticles, which exhibit a minor refining effect, the plate-like Al3Tiparticlesshow a significant refinement with UST application. The UST has a significant effect on the size distribution of Al grains byinducing the formation of medium-sized grains at the expense of small and large grains; however, it only has a slight effecton grain refinement. The degree of microstructure modification increases with increasing UST time but decreases with meltholding time after UST. The mechanisms for the refinement and dispersion of the TiB2and Al3Tiparticles and Al grains arediscussed considering fragmentation, nucleation, and growth behaviors induced by the UST and subsequent solidification.
오연희,이현경,이원재,이성우,박수성,윤혜원,임문환,심재철,김용탁,김성숙,김정란 동국대학교 경주대학 1993 東國論集 Vol.12 No.-
Acute torsion of the ovary and ovarian mass is a recognized surgical emergency, but rarely has the diagnosis been made preoperatively on the basis of imaging studies. The sonographic findings in 14 cases of surgically proven torsion of the ovary and ovarian mass are described. Mostly cystic ovarian mass, engorged vessel, dilated uterine tube, beak-like echo(torsion site), smooth mass wall thickening an free-fluid collection in cul-de-sac are described. More significant in terms of specificity were the demonstration in 6 cases(42.9%) of the smooth mass wall thickening and in 8 cases(57.1%) of a free fluid in the cul-de-sac. We report the sonographic findings of ovary and ovarian mass torsion that may suggest the preoperative diagnosis of this condition.
봉독약침이 류마티스 관절염 환자의 관절 통증, 종창 및 급성 염증 반응에 미치는 영향
이상훈,이현종,백용현,김수영,박재경,홍승재,양형인,김건식,이재동,최도영,이두익,이윤호 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2003 東西醫學硏究所 論文集 Vol.2003 No.-
Objective In order to study the effects of bee venom(BV) on the pain, edema, and acute inflammatory reactant of rheumatoid arthritis(RA) patients. Methods Patients with RA who met the ACR(American College of Rheumatology) 1987 revised criteria for the diagnosis of RA were treated with the BV therapy twice a week for 3 months. Tender Joint counts, swollen joint counts, Visual analog scale(VAS), morning stiffness, ESR. C-reactive protein(CRP) were analyzed before and after BV therapy. Results The results as follows. 1. Tender joint counts in patients after BV therapy were significantly lower than those before BV therapy(9.0±7.9 vs 15± 11.4, p=0.002). 2. Swollen joint counts of the patients after BV therapy were significantly lower than those before BV therapy(50±61 vs 15±23, p=0.001). 3. VAS in patients after BV therapy was significantly lower than those before BV therapy(608± 17.6 vs 380± 159, p=0.000). 4. Duration of morning stiffness in patients after BV therapy was significantly reduced compared with that before BV therapy(119.1± 112.6 min vs 59.0±89.7 min, p=0.009). 5. ESR and CRP were not significantly changed before and after BV therapy, suggesting BV itself could make inflammatory reaction as well as therapeutic effect. Conclusions BV therapy improved tender joint counts, swollen joint counts and duration of morning stiffness in this study, and further study is needed on long-term effect of BV therapy.
Choi, Dukhyun,Choi, Min-Yeol,Choi, Won Mook,Shin, Hyeon-Jin,Park, Hyun-Kyu,Seo, Ju-Seok,Park, Jongbong,Yoon, Seon-Mi,Chae, Seung Jin,Lee, Young Hee,Kim, Sang-Woo,Choi, Jae-Young,Lee, Sang Yoon,Kim, Jo WILEY-VCH Verlag 2010 ADVANCED MATERIALS Vol.22 No.19
<B>Graphic Abstract</B> <P>The cover shows an image of fully rollable transparent nanogenerators synthesized using chemical vapor deposition grown large-scale graphene sheets as transparent electrodes and piezoelectric ZnO nanorod arrays. Sang-Woo Kim, Jae-Young Choi, and co-workers report on p. 2187 the electrical and structural stability of the nanogenerators, with excellent charge scavenging performance under external mechanical loads such as bending and rolling. This study shows that graphene-based nanogenerators are very promising for self-powered rollable transparent device applications. <img src='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content.gif' alt='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content'> </P>
Proportion And Characteristics Of Transient Nodules In A Retrospective Analysis Of Pulmonary Nodules
( Jin Yeong Yu ),( Su Young Chi ),( Hee Jung Ban ),( Yong Soo Kwon ),( In Jae Oh ),( Kyu Sik Kim ),( Yu Il Kim1 ),( Sung Chul Lim ),( Song Choi ),( Yun Hyeon Kim ),( Young Chul Kim ) 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.-
불소적용시 법랑질과 상아질에서 불화칼슘형성의 차이에 관한 실험적 연구
김재곤,권선자,윤현두,안수현,백병주 大韓小兒齒科學會 1998 大韓小兒齒科學會誌 Vol.25 No.1
The purpose of this study was to compare the amount of calcium fluoride deposited on the enamel and dentin surface and to obtain information on the morphological change and crystallographic details of mineral deposition after 12,000ppm APF application in vitro. The bovine enamel and dentin blocks were randomly assigned to eight groups according to artificial caries lesion formation and difference of fluoride application time. The fluoride concentration and morphological characteristics on the treated enamel and dentin surface were investigated by using fluoride quantitative analysis and SEM. The powdered enamel and dentin of the intact bovine incisors were prepared for the X-ray diffraction analysis. The following results were obtained. 1. The amounts of KOH-soluble fluoride on the carious enamel and dentin surface after 24h APF application were higher than after only 5min APF application(P<0.05), but in the case of the sound enamel and dentin surface were similar after 5min and 24h application (P>0.05). The fluoride content was highly increased in the carious dentin as compared with sound dentin after APF application(P<0.05). 2. The caruous enamel surface after APF application, the demineralized enamel surface were recovered a more dense enamel surface and precipitation of crystal was observed a distintive surface layer of spherical globules of about 1 m diameter. In the case of the fluorided carious dentin surface, precipitation of calcium fluoride-like material was deposited both inside the dentinal tubules as well as in the intertubular regions. 3. The crystallographic structure of powdered enamel and dentin after 24h APF application had large crystallities of apatite and CaF2 diffraction peaks in the enamel as compared with dentin. The diffraction data collected from the 27.50-29.50(2) angular range of the powdered enamel, the (105) apatite, (225) apatite and (111) CaF2 peaks of the enamel crystallities were detected after 24h APF application.