• Title/Summary/Keyword: 병원감염

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Diabetes Story III - 당뇨병과 관련된 감염증 - 요로감염 -

  • 사단법인 한국당뇨협회
    • The Monthly Diabetes
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    • s.220
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    • pp.36-38
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    • 2008
  • 요로감염은 우리에게 조금은 생소하지만 당뇨병으로 인한 감염으로 무시할 수 없는 부분을 차지한다. 당뇨로 인한 방광염의 빈도가 증가하면서 요로감염이 동반될 수도 있기 때문에, 그 심각성과 대처방안 등을 울산대학교병원 감염내과 전재범 교수에게 들어 보았다.

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Pathogenicity and Histopathological Characteristics of White Spot Baculovirus(WSBV) in Cultured Shrimp, Penaeus chinensis (양식대하(Penaeus chinensis) 감염 White Spot Baculovirus(WSBV)의 병원성 및 병리조직학적 특성)

  • Heo, Moon-Soo;Sohn, Sang-Gyu
    • Journal of fish pathology
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    • v.14 no.1
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    • pp.16-20
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    • 2001
  • The pathogenicity of the extracted WSBV from the hepatopancreas, the lymphoid organ, the stomach and the heart of infected shrimps was examined after artificial infection in shrimps(Penaeus chinensis). In terms of the infection route, the strength of the pathogenicity of WSBV was in the order of intramuscular, oral and dipping method. The influence of rearing water temperature on the pathogenicity of WSBV was the strongest in the order of $30^{\circ}C$, $25^{\circ}C$, $20^{\circ}C$, and $15^{\circ}C$. The isolated WSBV from the diseased shrimps showed very high pathogenicity regardless of their sizes, even though there was difference in time to reach 100% mortality. Degenerated cells characterized by hypertrophied nuclei were found in various tissues such as the lymphoid organ, the hematopoietic tissue and the epidermis in the stomach.

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Changes in the pathogenicity of Naegleria fowleri by serial brain passage in mice (자유생활아메바 Naegleria fowleri의 계대감염에 의한 병원성의 변화에 관한 연구)

  • 이득기;임경일
    • Parasites, Hosts and Diseases
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    • v.21 no.2
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    • pp.234-240
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    • 1983
  • The pathogenicity of free-living amoeba, Waegleria fcwleri, is influenced according to the strain, cultural condition and host (Culbertson et at., 1968; Carter, 1970; Wong et at., 1975), Phillips (1973) demonstrated that Entamoeba histolytica became avirulent after more than 2 year maintenance in axonic culture in vitro. This study was carried out to compare the difference in pathogenicity between two strains of N. fowleri, one of a prolonged maintenance in arsenic medium and the other one obtained by serial brain passage in mice. The 0 strain was that N. fowleri had cultivated axenically more than 7 years in CGVS medium. The 2-1 strain was obtained from the brain of mouse inoculated intranasally with a strain, which was from the mouse brain infected with 0 strain, and cultured for 15 weeks until the beginning of this experiment. White male mice weighing 18-22 g were used. Mice were anesthetized by an intraperitoneal injection of about 1 mg secobarbital, and inoculated intranasally with $10{\times}$10^4 live N. fowleri trophoBoites in a $5{\;}{\mu}l$ cell suspension. Sluggish behaviour, nervousness, rotation and leg paralysis were developed earlier and more frequently in the 2-1 experimental group than the control 0 group. Pathological changes such as inflammatory and necrotic lesion were observed in the olfactory and anterior portion of brain, and these changes were more extensive in the 2-1 group. The edematous and inflammatory changes in lung were demonstrated in mice died after 13th day post-inoculation. The experimental mice of 2-1 group began to die suddenly from 7th day post-inoculation, and the survival time in 2-1 group mice was shorter than 0 group mice. The typical primary amoebic meningoencephalitis was developed in the mice inoculated intranasally with N. fowleri. The prolonged maintenance of N. fowleri amoebae in axonic CGVS medium was observed to have lost their original pathogenicity for mice, but their pathogenicity was restored by serial brain passage in mice.

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Disinfection Effect of Film Cassettes by Ultraviolet Irradiation (자외선을 이용한 Film Cassette의 소독 효과)

  • Kweon, Dae-Cheol;Park, Peom
    • Journal of Radiation Protection and Research
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    • v.26 no.4
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    • pp.425-432
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    • 2001
  • A bacteria infection on film cassette contact surface was examined at the diagnostic radiology department. Studies have demonstrated a bactericidal effect of ultraviolet irradiation, and to assess the contamination level on film cassette contact surface as a predictor of patient prevent from nosocomial infection. The study showed that the laboratory result was identified non-pathologic and pathologic bacterial in the five different cassette size of the contact surface. Film cassettes were exposed to ultraviolet light for 1, 2 and 3 minutes. Ultraviolet light disinfection practices suitable for bacteria. The study concludes that presence of a bacterial infection will prevent a using antiseptic technique on film cassette contact surface. In conclusion, ultraviolet irradiate on film cassette over the surface more than 2 minutes. Ultraviolet dose of $1565 {\mu}W{\codt}s/cm^2$ Win in 30 second relative to ultraviolet dose in time.

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Effect of Popcorn, Wolbachia Variant, on Development and Reproduction in Drosophila melanogaster (Wolbachia 변이종 Popcorn이 초파리의 발육과 생식에 미치는 영향)

  • 한상미;민경태;한명세;이상철
    • Korean journal of applied entomology
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    • v.39 no.3
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    • pp.193-197
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    • 2000
  • Wolbachia, vertically transmitted bacterial endosymbionts, is known to induce cytoplasmic incompatibility (CI), parthenogenesis, or feminization in some insect species. The Wolbachia found to exist symbiotically as a non-virulent form in Drosophila melanogaster, however popcorn is a lethal strain of Wolbachia, which causes tissue degeneration and early death of its adult host. Popcorn-infected flies showed the delayed duration of an egg and larvae, and their pupal period and life span reduced. The oviposition and egg-hatching rate of popcorn-infected flies were decreased 15% and 80%, respectiv~ly, compared to those of the normal Wolbachia-infected flies. The pupation and emergence rates of popcorn-infected flies were 67% and 65%, respectively. When popcorn-infected flies were crossed with Wolba-chia-infected flies, and vice versa, both crosses resulted in a significant reduction in egg production, egg¬hatching, pupation, and emergence rate, and their progeny revealed the popcorn syndrome. When popcorn-infected male flies were crossed with uninfected females, popcorn was not detected in their progeny. Popcorn also maternally transmitted in flies, but it did not induce CI and affected on its host life cycle as a virulence.

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Relationship between Entomopathogenic Nematode and Entomopathogenic Fungus, Beauveria brongniartii

  • 추호렬;김형환;이동운;하판정;이상명;이태우
    • Asian Journal of Turfgrass Science
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    • v.12 no.2
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    • pp.127-140
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    • 1998
  • 곤충병원성 선충의 이용 효율을 높이기 위하여 곤충병원성 선충 상호간 또는 선충과 곤충병원성 곰팡이와의 상호관계를 알아보았다. Steinernema glaseri는 기주의 무게에 따라 성충수에서는 차이가 없었으나 침입태 유충수에서는 차이가 있었다. 선충의 접종 농도에 따른 침입 발육된 성충수는 기주당 20마리 이하의 접종에서는 차이를 보였으나 40마리 이상 1,000마리 접종구에서는 차이가 없었고, 증식된 유충수도 기주당 1,000마리 접종구에서 현저히 적은 것을 제외하고는 차이가 없었다. 동일 기주에서의 선충 상호간 관계에서는 steinernematid 선충에 의한 기주 치사율이 heterorhabditid 선충에 의한 것보다 높았다. 즉, 서로 다른 종의 곤충병원성 선충을 동일 기주에 접종하였을 때, S. carpocapsae 포천에 의한 기주 치사율은 $76.2\pm$4.8%였고 Heterorhabditis bacteriophora 함양에 의한 치사율은 $23.8\pm$4.8%였다. 또한 S. carpocapsae 포천에 의한 기주치사율이 각각 $90.5\pm$4.8%와 $80.9\pm$4.8%, H. bacteriophora NC 1에 의한 것은 9.5$\pm$4.8%였다. S. glaseri NC와 H. bacteriophora 함양 및 H. bacteriophora NC 1을 동시 접종하였을 때는 S. glaseri NC에 의한 것이 각각 $61.9\pm$9.65%와 $80.9\pm$4.8%, H. bacteriophora 함양에 의한 것이 $38.1\pm$9.5%, H. bacteriophora NC 1에 의한 것이 $19.1\pm$4.8%였다. 그러나 두 선충의 동시 감염은 관찰되지 않았다. 그리고 S. carpocapsae All과 곤충병원성 곰팡이인 Beauveria brongniartii를 동시 또는 곰팡이를 먼저 처리했을 때는 곰팡이 12시간 전 처리부터 선충과 곰팡이의 동시 감염이 관찰되었고, H. bacteriophora NC 1는 곰팡이 6시간 전 처리부터 동시 감염이 관찰되었다. 선충에 의한 감염과, 곰팡이에 의한 감염, 선충과 곰팡이 동시 감염은 곰팡이 48시간 전 처리부터 관찰되었다. 그러나 유충 증식수는 선충 단독 감염보다 동시 감염충에서 현저히 떨어졌다.

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Nosocomial Infection and Hospital Architecture (병원 감염 방지를 위한 병원 건축 계획에 관한 연구)

  • Yang, Nae-Won;Kim, Jong-Kook
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.1 no.1
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    • pp.97-103
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    • 1995
  • This study aims to find out architectural possibilities for preventing hospital infection by reviewing the existing studies. In addition, it analyses the actual existing examples in order to evaluate the effect of infection on the hospital building planning. Finally, it tries to suggest the necessity of continuing studies in this field and show the future direction.

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