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Ureaplasma urealyticum과 Staphylococcus aureus에 감작된 마우스 복강 대식세포의 탐식능의 변화
유경식,장명웅 고신대학교 의학부 1990 高神大學校 醫學部 論文集 Vol.6 No.1
Several investigators have reported that mycoplasmas might activate macrophages, but some other investigators do not agree with this view. Furthermore, the interaction between ureaplasmas and macrophages has not been studied previously. The phagocytic activities of mice peritoneal macrophages activated with Ureaplasma urealyticum (U. urealyticum) or Staphylococcus aureus(S. aureus) have been compared by calculating Candide albicans(C. alvicans) uptake. At same time, hematological changes of peripheral white blood cells in U.urealyticum or S. aureus infected mice were examined. The results are : 1. The phagocytic activities of peritoneal macrophages infected 1-4 times with U. urealyticum or S. aureus were augumented for 72 hours. But, after 96 hours, the phagocytic activihes of U. urealyticum activated macrophages were decreased, and the phagocytic activated of S. aureus activated macrophages were increased. 2. The number of peritoneal cells infected 1-4 times with U.urealyticum or S. aureus were increased after 24 hours, but continuously decreased during 48-96 hours. 3. The phagocytic activities of peritoneal macrophages, against C. albicans, activated by U. urealyticum or S. aureus showed the highest activity in 2-3 hours. 4. The number of polymorphonuclear leukocytes in peripheral blood of U. urealyticum or S. aureus infected mice were increased during 24-72 hours or 24-96 hours, respectively. 5. The number of white blood cells in peripheral blood infected by U. urealyticum were variable during 24-96 hours. However, the number of white blood cells in peripheral blood by S. aureus were continuously increased during 24-96 hours.
사람 만성백혈병 세포주(K-562)의 Ureaplasma의 감염
김광혁,유경식,박인달,장명웅 고신대학교 의학부 1989 高神大學校 醫學部 論文集 Vol.5 No.2
U. urealyticum으로 감염시킨 K-562세포를 10일 동안 37 ℃, 5% CO_(2) 부란기에서 배양하여 매일 ureaplasma의 수적변화를 color change unit(CCU)로 시험하였고, 살아있는 K-562세포를 trypan blue exclusion방법에 의해서 산정하였다. 그 결과는 다음과 같다. 1. U. urealyticum의 성장은 1일째까지는 증가되었으나 2일째부터 감소하였다. 2. K-562세포에 접종된 U. urealyticum은 접종량에 따라 6일 내지 9일까지 살아남아 있었다. 3. U. urealyticum으로 감염시킨 K-562세포의 성장곡선은 감염시키지 않은 K-562세포와 비교할 때 그 정점이 1~2일 지연되었다. 또한, K-562세포에 대한 ureaplasma의 세포독성 효과는 미소하였다. 4. 배양 10일째에 U. urealyticum으로 감염시킨 살아있는 K-562 세포수는 감염시키지 않은 K-562 세폭군보다 높게 나타났다. K-562 cells were infected with U.urealyticum and incubated In 5% C02 incubator at 37'C for 10 days. At every 1 day intervals, the ureaplasmal numbers in the culture supematants were calculated by color change units(CCU) and the viable K-562 cells were counted by trypan blue exclusion method. The results of this study were as follows. 1. Growth of U.urealyticum was enhanced by day 1, but it was decreased from day 2. 2. U.urealyticum inoculated to K-562 cells survived by day 6 or day 9 according to the quantity of inoculum. 3. Growth curves of K-562 cells infected with U.urealyticum were delayed 1 or 2 days at the peak point when compared with non-infected K-562 cells(control). Furthermore, ureaplasmal cytopathic effect to K-562 cells was slight. 4. Numbers of viable K-562 cells infected with U.urealyticum were higher than those of non-infection at day 10.
Ureaplasma urealyticum에 감염된 K-562 세포의 세포핵학적 특성
김광혁,유경식,박인달,장명웅 고신대학교 의학부 1990 高神大學校 醫學部 論文集 Vol.6 No.2
When cultured human chronic myelogenous leukemia cell line(K-562) were exposed to Ureaplasma urealyticum, the cell showed chromosomal aberrations markedly The K-562 cells were cultivated with U.urealyticum in RPMI 1640 without supplemental urea for 10 days. The cells for karyotyping were propagated in RPMI 1640 containing 10% fetal bovine surum Chromosomal aberrations included chromosomal break, chromatid break, chromatid gap, chromosome exchange, chromatid exchange, and ring chromosome.
Ureaplasma urealyticum의 항생물질에 대한 감수성
장명웅,김광혁,박인달,유경식,임승균,윤배근,정기묵,정재훈 고신대학교 의학부 1991 高神大學校 醫學部 論文集 Vol.7 No.1
The miniumm inhibitory concentration (MIC) of tetracycline, doxycycline, erythromycin and streptmycin against 246 clinical isolates of Ureaplasma urealyticum were compared with those of antibiotics by a broth dilution method with growth and metabolic inhibition test. Isolation rates of Ureaplasma urealyticum from patients with vaginitis, cirvicitis, pelvic inflammatory diseases, cervical carcinoma and others were 49.3%, 57.2%, 44.2%, 53.5%, and 51.9%, respectively and the mean isolation rates are 52.2% . Color changing units (ccu) of ureaplasma from the tested specimens were 10^(4) _(ccu)/ml(27.2%), 10^(3)_(ccu)/ml(19.9%), 10^(2)_(ccu)/ml(15%), 10^(1)_(ccu)/ml(12.3%), 10^(5)_(ccu)/ml(11.8% ), 10^(6)_(ccu)/ml (8.1%), and 10^(7)_(ccu)/ml (6.5%) , respectively. MIC_(50) of tetracycline, doxycycline, erythromycin and streptomycin against isolated strains of ureaplasma were 15㎍/ml, 3.75㎍/ml, 3.75㎍/ml, and 1.86㎍/ml, respectively, and MIC_(90) of those antibiotics were 120㎍/m1, 60㎍/m1, 7.5㎍/ml, and 7.5㎍/ml. respectively. Isolation rates of resistant strains of ureaplasma to tetracycline, doxycycline, erythromycin and streptomycin were 76%, 50.4%, 24%, and 14.2%, respectively. Thirty percent of the isolates were multiple drug resistant to tetracycline and doxycycline, 6.5% were resistant to tetracycline and streptomycin, 5.7% were resistant to doxycycline and streptomycin and 2.8% were resistant to erythromycin and streptomycin Two percent of the isolates were multiple drug resistant to doxycycline, erythromycin and streptomycin, 1.2% of the isolates were resistant to tetracycline, doxycycline, and erythromycin, and 1.2% of isolates were resistant to tetracycline, doxycycline, sand streptomycin.
Ureaplasma urealyticum에 감염된 사람 임파구의 염색체이상
장명웅,김광혁,박인달,유경식 고신대학교 의학부 1989 高神大學校 醫學部 論文集 Vol.5 No.2
The Present study was made to observe the karyological and morphological changes of chromosome that occur to human lymphocyte infected with Ureaplasma urealyticum Karyotypes and morphological changes of chromosome were observed using short term blood culture and micro-method. The results of this study are : 1. Survival time of Ureaplasma urealyticum in the supernatant of human lymphocyte culture with RPMI 1640 was 2 days. 2. Ureaplasma urealyticum T-960(standard strain) and K-15(isolated from patient with cervicitis) strains caused mitotic inhibition of human lymphocyte when an inoculum of 10^(5) color changing unit per ml of these microorganisms. 3. Ureaplasma urealyticum T-960 and K-15 were able to induced chromosome aberrations of human lymphocytes in stahstically significant numbers These chromosome aberration included tetraploid, chromatid gap, chromatid break, chromosome break, chromatid exchange, dicentric chromosome, acentric chromosome, endoreduplication, quardnradial exchange, multiple exchange, nng chromosome, and satellite chromosome.
Mycobacterium fortuitum에 의한 피부감염증
전성진,서기석,김상태,유경식,박인달,장명웅 ( Seong Jin Jeon,Kee Suck Suh,Sang Tae Kim,Gyung Sig Yoo,In Dal Park,Myung Woong Chang ) 대한피부과학회 1991 대한피부과학회지 Vol.29 No.5
We report a case of cutaneous Mycobacterium fortuitum infection occurring in a 53-year-old man with multiple subcutaneous nodules on his right thigh and right lower leg. He has been treated with long-term systemic corticosteroids for his nephrotic syndrome. He had no constitutional symptoms and no lymphadenopathy. Laboratory findigs were within normal limits except for abnormal values for nephrotic syndrome. The skin biospy specimen showed a mixed pattern of epithelioid granuloma with micropseudocyst containing acid-fast bacilli. Methenamine silver stain was negative. The cultures from the skin biopsy specimens on Ogawa media(3% KH_2PO_4) at 24℃, 32℃, 37℃, yielded colonies of M. fortuitum after 4 days. Culture on Sabouraud media revealed no growth. DOPA reaction was negative. Nitrate reduction test was positive and Tween 80 hydrolysis test was negative. Urine and sputum cultures for atypical mycobacteria were negative. This M. fortuitum was sensitive to amikacin or tetracycline. Four months later, the skin lesions regressed without therapy.