2008, Cilt 22, Sayı 2, Sayfa(lar) 091-096 |
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INVESTIGATION OF HEMOLYTIC ACTIVITY IN CANDIDA SPECIES |
Nimet YİĞİT1, A. Esin AKTAŞ2 |
1 Atatürk Üniversitesi, Sağlık Hizmetleri Meslek Yüksekokulu, Tıbbi Laboratuvar Bölümü, Erzurum 2 Atatürk Üniversitesi, Tıp Fakültesi, Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dalı, Erzurum |
Keywords: Candida species, hemolytic activity |
Hemolysins are known to be putative virulence factors contributing to pathogenicity in Candida species. The purpose of this study
was to determine the presence of hemolytic activity in clinical Candida isolates. A total of 104 Candida isolates representing eight
species was evaluated for their in-vitro hemolytic activity on 3%-enriched sheep blood Sabouraud-dextrose agar. Candida albicans,
C. tropicalis, C. glabrata, C. kefyr and C. krusei species demonstrated beta-hemolysis at 48 h postinoculation. Alpha hemolysis was
detectable in 3 C. guilliermondii and 3 Geotrichum candidum isolates. Four C. parapsilosis isolates failed to demonstrate any hemolytic
activity after incubation for 48 h or longer. The detection of hemolytic activity among clinical Candida isolates may warn the clinician
for a possible Candida-related hematogenous infection.
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