单位:[1]Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, PR China[2]Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, PR China[3]Triplex International Bioscience (China) Co., Ltd., Xiamen, Fujian, PR China[4]Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, PR China[5]Laboratory of Clinical Microbiology and Infectious Diseases, Department of Pulmonary and Critical Care Medicine, China–Japan Friendship Hospital, Beijing, PR China.
Purpose. Candida pathogens are commonly found in women and can cause vulvovaginal candidiasis (VVC), whose infection rate is further increased during pregnancy. We aimed to study the Candida prevalence and strain distribution in pregnant Chinese women with a molecular beacon assay. Methodology. From March 2016 to February 2017, a total of 993 pregnant women attending routine antenatal visits at the Beijing Obstetrics and Gynecology Hospital were enrolled. For Candida detection and identification, a unique molecular beacon assay was presented and compared with a traditional phenotypic method. Antifungal susceptibility was tested with the following agents: 5-flucytosine, amphotericin B, fluconazole, itraconazole and voriconazole. Results. The prevalence of Candida was found to be 21.8% when using the molecular method and 15.0% when using the phenotypic method. The distribution of the Candida spp. was listed in order of decreasing prevalence: Candida albicans (79.8 %), Candida glabrata (13.5 %), Candida parapsilosis (3.7 %), Candida krusei (2.2 %) and Candida tropicalis (1.1 %). We found that 90.7% of the Candida detection results were consistent between the molecular and the phenotypic methods. In the cases where the sequencing analyses for the Candida isolates resulted in inconsistent identification, the molecular method showed higher sensitivity than the phenotypic method (96.0 vs 64.6 %). C. albicans, C. glabrata and C. parapsilosis were essentially susceptible to all five antifungal agents tested, whereas C. tropicalis and C. krusei were susceptible to voriconazole and amphotericin B. Conclusion. By exhibiting good sensitivity and specificity, the molecular assay may offer a fast and accurate Candida screening platform for pregnant women.
基金:
Beijing Obstetrics and Gynecology Hospital, Capital Medical University [fcyy201603]
第一作者单位:[1]Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, PR China
通讯作者:
推荐引用方式(GB/T 7714):
Yanhong Zhai,Jing Liu,Li Zhou,et al.Detection of Candida species in pregnant Chinese women with a molecular beacon method[J].JOURNAL of MEDICAL MICROBIOLOGY.2018,67(6):783-789.doi:10.1099/jmm.0.000740.
APA:
Yanhong Zhai,Jing Liu,Li Zhou,Tongzhen Ji,Lingxin Meng...&Zheng Cao.(2018).Detection of Candida species in pregnant Chinese women with a molecular beacon method.JOURNAL of MEDICAL MICROBIOLOGY,67,(6)
MLA:
Yanhong Zhai,et al."Detection of Candida species in pregnant Chinese women with a molecular beacon method".JOURNAL of MEDICAL MICROBIOLOGY 67..6(2018):783-789