• Title/Summary/Keyword: Sporotrichosis

검색결과 3건 처리시간 0.025초

Antifungal Activity of Silver Salts of Keggin-Type Heteropolyacids Against Sporothrix spp.

  • Mathias, Luciana Da Silva;Almeida, Joao Carlos De Aquino;Passoni, Luis Cesar;Gossani, Cristiani Miranda David;Taveira, Gabriel Bonan;Gomes, Valdirene Moreira;Vieira-Da-Motta, Olney
    • Journal of Microbiology and Biotechnology
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    • 제30권4호
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    • pp.540-551
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    • 2020
  • Sporotrichosis is a chronic and subacute mycosis causing epidemiological outbreaks involving sick cats and humans in southeastern Brazil. The systemic disease prevails in cats and in humans, with the symptoms restricted to the skin of immunocompetent individuals. Under these conditions, the prolonged treatment of animals and cases of recurrence justify the discovery of new treatments for sporotrichosis. This work addresses the antifungal activity of silver salts of Keggin-type heteropolyacid salts (Ag-HPA salts) such as Ag3[PW12O40], Ag6[SiW10V2O40], Ag4[SiW12O40] and Ag3[PMo12O40] and interactions with the antifungal drugs itraconazole (ITC), terbinafine (TBF) and amphotericin B (AMB) on the yeast and mycelia forms of Sporothrix spp. Sporothrix spp. yeast cells were susceptible to Ag-HPA salts at minimum inhibitory concentration (MIC) values ranging from 8 to 128 ㎍/ml. Interactions between Ag3[PW12O40] and Ag3[PMo12O40] with itraconazole and amphotericin B resulted in higher antifungal activity with a reduction in growth and melanization. Treated cells showed changes in cell membrane integrity, vacuolization, cytoplasm disorder, and membrane detachment. Promising antifungal activity for treating sporotrichosis was observed for the Ag-HPA salts Ag3[PMo12O40] and Ag3[PW12O40], which have a low cost, high yield and activity at low concentrations. However, further evaluation of in vivo tests is still required.

부신겉질기능항진증과 당뇨 병발 개에서 Sporothrix schenckii 감염 증례 (Sporothrix schenckii Infection in a Dog with Concurrent Hyperadrenocorticism and Diabetes Mellitus)

  • 송재용;이바른;김현민;강주연;조현기;최을수;황철용;최정훈;정진영
    • 한국임상수의학회지
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    • 제32권6호
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    • pp.511-513
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    • 2015
  • 12살 중성화 암컷 Pomeranian이 화농성, 홍반성 피부 종괴를 주증으로 내원하였다. 본 환자는 기존에 당뇨와 부신겉질기능항진증을 진단받고 처치받고 있었다. 신체검사, 혈액검사, 영상학적 검사상 특별한 이상이 발견되지 않았고, 병변 부위의 곰팡이 배양 결과 Sporothrix schenckii가 동정되었다. Fluconazole을 7일간 처방하였으나 개선 양상이 보이지 않아, 지속적인 감염과 심부의 곰팡이 감염을 제거하기 위해 종괴의 외과적 절제를 실시하였다. 종괴의 조직학적 검사상, 심각한 다발성 농성육아종성 피부염과 지방층염을 진단하였다. 본 증례는 내분비 질환 병발 개에서 Sporothrix schenckii의 감염에 의한 다발성 농성육아종성 피부염과 지방층염의 첫번째 증례이다. 특히 동물에서 Sporothrix schenckii의 한국에서의 첫번째 보고이다.