• 제목/요약/키워드: candida

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토양으로부터 Candida albicans 의 균사형태에 선택적인 활성을 나타내는 미생물로부터 항진균 물질의 탐색 (Screening of Antifungal Compounds from Microorganisms with Preferential Activity against the Mycelial Phase of Candida albicans)

  • 김성욱;남지연;권병목;손광희;복성해
    • 한국미생물·생명공학회지
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    • 제23권2호
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    • pp.170-177
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    • 1995
  • To search and develop the compounds exhibiting antifungal activities against the mycelial phase of Candida albicans, approximately 2,900 microorganisms isolated from soil were examined for antifungal activity. Among them, a strain with preferential activity against the mycelial phase of Candida albicans was isolated and identified as Streptomyces sp. A393. Isolation and purification of compounds A393 showing antifungal activity against the mycelial phase of C. albicans were performed using XAD-7 column chromatography, silica gel chromatography, preparative thin- layer silica gel chromatography, and HPLC. The molecular weights of compounds isolated from Streptomyces sp. A393 were determined as 774, 790, 804 and 820. These compounds appeared to have a structure of macrolide antibiotics, oligomycin A, B, C and E. Especially, oligomycin E, which is formerly reported to have no antifungal activity, showed antifungal activity against the mycelial phase of Candida albicans.

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Candida glabrata infection of urinary bladder in a Chinchilla Persian cat

  • Woo, Seungji;Kim, Hak-Hyun;Kang, Ji-Houn;Na, Ki-Jeong;Yang, Mhan-Pyo
    • 대한수의학회지
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    • 제57권2호
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    • pp.135-137
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    • 2017
  • A 5-year-old castrated male Chinchilla Persian cat weighing 4.84 kg was referred for hematuria. The cat had a history of urethrostomy and bacterial cystitis. In urine culture, Candida glabrata was cultured on Sabouraud dextrose agar. Based on these results, the cat was diagnosed with Candida cystitis. Subsequently, oral administration of fluconazole was initiated. Urine culture was negative at 31 days after administration. This case describes the diagnosis and treatment of Candida glabrata infection of urinary bladder in a cat with a history of urethrostomy.

식물 추출물의 Pityrosporum ovale 및 Candida albicans에 대한 항진균 활성 (Antifungal Activity of Plant Extracts against Pityrosporum ovale and Candida albicans)

  • 유시용;김성덕;장소영
    • 생약학회지
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    • 제34권4호통권135호
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    • pp.303-307
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    • 2003
  • For the purpose of searching for the new antifungal agent from the plant origin, we have examined twenty seven species of medicinal plants for the antifungal activity against Candida albicans and Pityrosporum ovale. The whole MeOH extract of each plant material and the n-hexane and EtOAc fractions were evaluated individually for the antifungal activity. Among the test materials, the fractions from the root bark of Zanthoxylum schinifolium, Zanthoxylum piperitum and Citrus unshiu showed significant antifungal activities in a dose dependent manner against Pityrosporum ovale and Candida albicans, respectively.

돈분에서 분리한 Candida utilis의 생균제로서의 특성

  • 조진국;최진영;유숙진;허강칠
    • 한국축산식품학회:학술대회논문집
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    • 한국축산식품학회 2005년도 정기총회 및 제35차 춘계 학술 발표대회
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    • pp.285-289
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    • 2005
  • 본 연구는 생균제로 이용할 수 있는 균주개발을 목적으로 돈분에서 성장능력과 내산성이 우수한 Candida sp. 를 분리하였고, API kit를 이용하여 동정하였을 때 Candida utilis로 확인되었다. Candida utilis는 cellulase, phytase활성이 높은 것으로 관찰되었으며, PDB배지에서 18시간 배양시 $6.5{\times}109\;cfu/ml$로 최대로 성장하는 것으로 나타났다. 또, pH 1.5에서도 약 22%의 미생물수($1.34{\times}107\;cfu/ml$)가 잔존하여, 내산성이 강한 것으로 나타났다. 또, $60^{\circ}C$이상의 고온에서는 사멸하였으나 정상적인 생체온도에서는 열 안전성이 있는 것으로 나타났다. 이상의 결과로부터 분리한 Candida utilis는 생균제 및 단세포단백질 생산에 충분히 이용가치가 있는 것으로 확인되었다.

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Biofilm-forming ability and adherence to poly-(methyl-methacrylate) acrylic resin materials of oral Candida albicans strains isolated from HIV positive subjects

  • Uzunoglu, Emel;Bicer, Arzu Zeynep Yildirim;Dolapci, Istar;Dogan, Arife
    • The Journal of Advanced Prosthodontics
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    • 제6권1호
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    • pp.30-34
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    • 2014
  • PURPOSE. This study evaluated the adhesion to acrylic resin specimens and biofilm formation capability of Candida albicans strains isolated from HIV positive subjects' oral rinse solutions. MATERIALS AND METHODS. The material tested was a heat-cured acrylic resin (Acron Duo). Using the adhesion and crystal violet assays, 14 oral Candida albicans isolated from HIV-positive subjects and 2 references Candida strains (C. albicans ATCC 90028 and C. albicans ATCC 90128) were compared for their biofilm production and adhesion properties to acrylic surfaces in vitro. RESULTS. There were no significant differences in adhesion (P=.52) and biofilm formation assays (P=.42) by statistical analysis with Mann-Whitney test. CONCLUSION. Denture stomatitis and increased prevalence of candidal carriage in HIV infected patients is unlikely to be related to the biofilm formation and adhesion abilities of C. albicans to acrylic resin materials.

The Antifungal Activities of some 6-[N-(halophenyl)amino]-7-Chloro-5,8-Quinolinediones against Candida Species

  • Ryu, Chung-Kyu;Kim, Dong-Hyun
    • Archives of Pharmacal Research
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    • 제17권6호
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    • pp.483-486
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    • 1994
  • A series of 6-[N-(halophenyl)amino]-7-chloro-5, 8-quinolinedione derivatives 1-10 were tested for antifungal susceptibilities, in vitro, aginst pathogenic Candida species such as C. ablbicans, C glabrata, C. krusei, C. parapsilosis and C. tropicalis. The MICs were determined by the standard macrodilution techniques, according to the NCCLS 1992 guidelines. The 6-[N-(halo-standard macrodilution techniques, according to the NCCLS 1992 gidelines. The 6-[N-(halo-phenyl)amino]-7-chloro-5, 8-quinolinedione derivatives showed generally potent antifungal activities against pathogenic Candida species. Among them, derivative 1, 2, 5, and 7 showed more potent antifungal activities than kietoconazole. All derivatives 1-10 had specially potent activities against C. torpicalis. Derivative 1 and 2 containing 9N-3, 4-dihalo-phenyl)amino moiety exhibited the potent antifugal activities. Derivative 2 with (3, 4-dichlorophenyl)amino substitutent was the most effetive in preventing the growth of Candida species at MICs 4.mu.g/ml respectively.

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세포내 지방산 조성 분석에 따른 Candida속의 분류 (Taxonomic Study of the Genus Candida by Cellular Fatty Acid Analysis)

  • 신기선;홍순덕;배경숙
    • 미생물학회지
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    • 제33권2호
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    • pp.81-85
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    • 1997
  • Candida속 효모 27종이 표준 균주를 대상으로 세포내 지방산 조성을 기체 크로마토그래피로 분석하여, 함유 지방산의 종류와 함량비를 근거로 27종이 균주를 3개의 분류군으로 나누었다. 이들 지방산 분석에 의한 분류군을 Candida속의 다른 분류학적 결과들인 coenzyme Q 분자종의 종류, DNA 염기함량 분석, ITS 부위의 제한효소 절단 다형질의 양상, 리보좀 소단위 RNA 유전자의 염기배열 보고와 비교 분석하였다. 그 결과 같은 분류군에 위치하는 균주들 사이의 연관 관계가 거의 일치하였다. 다라서 세포내 지방산 분석은 Candida속 규준들을 유전적 동질성을 갖는 균주들로 분류하는 수단으로 사용될 수 있으며, 유전적으로 매우 다양한 균주들의 집단으로 알려진 Candida속에 관한 분류적 고찰에 일차적으로 사용될 수 있는 유용한 수단임을 알 수 있었다.

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Candida boidinii에 의한 Alcohol-Oxidase의 생성 (Synthesis of Alcohol-Oxidase in Candida boidinii)

  • 이명숙;김미은;고병호;김상현
    • 한국식품영양과학회지
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    • 제22권6호
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    • pp.792-796
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    • 1993
  • The synthesis alcohol-oxidase[EC 1.1.3.13] was investigated in the yeasts, Candida boidinii CBS 8106 and C. boidinii CBS 2428, during growth on different carbon sources. Alcohol-oxidase was undetectable in all strains submitted to the test in the mineral salts medium containing 1.0% glucose, but its production was rapidly increased when the carbon source was changed glucose to 1.0% methanol after 24hrs of incubation. When cells were grown on the various carbon sources (glucose, xylose, lactose, glycerol, galactose, saccharose, sorbose, lactic acid or acetic acid), the alcohol-oxidase activity was undetected. These carbon sources together with methanol yielded far better synthesis of alcohol-oxidase than in the case of carbon sources alone. Alcohol-oxidase was active towards alcohol of shorter alkyl-chain length than C5 and unsaturated alcohols. Its affinity for these alcohols decreased with the increasing length of the alkyl-chain. The apparent Km values for the methanol of Candida boidinii CBS 8106 and C. boidinii CBS 2428 were 1.96 and 1.21, respestively.

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Ethanol, Acetic acid 및 Acetaldehyde의 동화능력을 가진 Candida sp. JY-5의 분리 (Isolation of Ethanol-, Acetic acid- and Acetaldehyde- assimilating yeast, Candida sp. JY-5)

  • Jun, Hong-Ki;Yeehn Yeeh
    • 한국미생물·생명공학회지
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    • 제13권3호
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    • pp.233-237
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    • 1985
  • C$_2$화합물 가운데 Ethanol, acetic acid 및 acetaldehyde을 공통적으로 동화할 수 있는 효모를 토양 및 하수 진흙으로부터 분리한 후 형태학적, 배양적 및 생리학적 특성을 고려하여 그 분류학적 위치를 검토하였다. 그 결과 분리효모는 다극 출아법에 의한 영양 증식을 하였으며 자낭포자를 형성하지 않고 또한 색소가 형성되지 않는 점으로 보아 Candida속에 속하였으며 Candida sp. JY-5로 명명하였다.

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A Case of Infantile Fungal Urinary Tract Infection

  • Cho, Wonhee;Jo, Young Min;Oh, Yun Kyo;Rim, Ji Woo;Lee, Won Uk;Choi, Kyongeun;Ko, Jeong Hee;Jeon, Yeon Jin;Choi, Yumi
    • Childhood Kidney Diseases
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    • 제23권2호
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    • pp.121-123
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    • 2019
  • Urinary tract infection is common in the pediatric population. The most common causative agents are bacteria, among which Escherichia coli is the most frequent uropathogen. Although fungal urinary tract infection is rare in the healthy pediatric population, it is relatively common among hospitalized patients. Fungus may be isolated from the urine of immunocompromised patients or that of patients with indwelling catheters. The most common cause of funguria is Candida albicans. Although more than 50% of Candida isolates belong to non-albicans Candida, the prevalence of non-albicans candiduria is increasing. Herein, we report a case of community-acquired candiduria in a 4-month-old immunocompetent male infant who had bilateral vesicoureteral reflux and was administered antibiotic prophylaxis. He was diagnosed with urinary tract infection caused by Candida lusitaniae and was managed with fluconazole.