European journal of obstetrics, gynecology, and reproductive biology · 2020
Antifungal susceptibility and virulence profile of candida isolates from abnormal vaginal discharge of women from southern India.
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Ganeshkumar Arumugam, Nagarajan Prabhusaran, Mahalingam Pramila, Balasubramanian Saranya, Archunan Priya Aarthy, Govindaraju Archunan, Rajaram Rajendran
Аннотация
OBJECTIVE: Vaginal candidiasis is the most common opportunistic fungal infection, largely associated with a woman's psychological and economic status. Recently, the rate of disease progression has increased extensively; however, region-specific studies are very limited. This study aimed to understand variation in hydrolytic activities and antifungal susceptibility of Candida isolates from vaginal discharge.
STUDY DESIGN: The present study was aimed to understand the variation of hydrolytic activities and antifungal susceptibility of Candida isolates from vaginal discharge.
RESULTS: In total, 34 different Candida isolates were collected: C. albicans (n = 17; 50 %), C. glabrata (n = 6; 17.64 %), C. tropicalis (n = 4; 11.76 %) and C. parapsilosis (n = 7; 20.58 %). All isolates were primarily identified and confirmed by basic microbiological methods followed by the VITEK-2 system. Antifungal susceptibility of the isolates were evaluated using yeast antifungal susceptibility testing cards. The isolates of C. albicans, C. glabrata, C. tropicalis and C. parapsilosis were 100 % susceptible to amphotericin B. The non-albicans isolates presented 100 % of proteolytic and lipolytic activity compared with C. albicans. Eight (47.06 %) C. albicans isolates showed positive esterase activity (Pz<1), whereas nine (52.94 %) were negative to esterase (Pz = 1). Of the 34 Candida isolates, 28 (82.35 %) were found to be moderate-to-strong biofilm producers: 14 C. albicans, three C. glabrata, six C. parapsilosis and five C. tropicalis.
CONCLUSION: This study clarified the antifungal susceptibility and virulence behaviour of Candida isolates; this will be of use in the selection of antifungal agents for Candida prophylaxis.
STUDY DESIGN: The present study was aimed to understand the variation of hydrolytic activities and antifungal susceptibility of Candida isolates from vaginal discharge.
RESULTS: In total, 34 different Candida isolates were collected: C. albicans (n = 17; 50 %), C. glabrata (n = 6; 17.64 %), C. tropicalis (n = 4; 11.76 %) and C. parapsilosis (n = 7; 20.58 %). All isolates were primarily identified and confirmed by basic microbiological methods followed by the VITEK-2 system. Antifungal susceptibility of the isolates were evaluated using yeast antifungal susceptibility testing cards. The isolates of C. albicans, C. glabrata, C. tropicalis and C. parapsilosis were 100 % susceptible to amphotericin B. The non-albicans isolates presented 100 % of proteolytic and lipolytic activity compared with C. albicans. Eight (47.06 %) C. albicans isolates showed positive esterase activity (Pz<1), whereas nine (52.94 %) were negative to esterase (Pz = 1). Of the 34 Candida isolates, 28 (82.35 %) were found to be moderate-to-strong biofilm producers: 14 C. albicans, three C. glabrata, six C. parapsilosis and five C. tropicalis.
CONCLUSION: This study clarified the antifungal susceptibility and virulence behaviour of Candida isolates; this will be of use in the selection of antifungal agents for Candida prophylaxis.