광주광역시에 거주하는 고령자의 타액 내 병원성 칸디다종의 동정에 관한 연구
(주)코리아스칼라
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서지정보
ㆍ발행기관 : 대한구강악안면병리학회
ㆍ수록지정보 : 대한구강악안면병리학회지 / 34권 / 2호
ㆍ저자명 : 고영종, 임원봉, 김지선, 김인애, 권혁일, 김옥수, 김병국, 김선미, 윤숙자, 강병철, 임회순, 김미숙, 김옥준, 최홍란
목차
I. INTRODUCTION
II. MATERIALS and METHODS
1. Reference Organisms
2. Saliva
3. DNA Preparation
4. PCR Primers
5. DNA Amplification and Detection
6. Antifungal Drug Sensitivity Testing
III. RESULTS
1. Standardization of snPCR
2. Species Identification of Candida isolateson Saliva
3. Antifungal Drug Sensitivity Testing
IV. DISCUSSION
V. CONCLUSIONS
VI. REFERENCES
영어 초록
Candida albicans and their associated Candida species are opportunistic pathogens which exists as normal flora in the oral cavities of healthy individuals. In response to physiological changes in the host, these yeasts can become pathogenic, resulting in oral candidiasis. The rapid detection and identification of Candida species in clinical laboratories are extremely important for the management of patients with hematogenous candidiasis. The presently available culture and biochemical methods for detection and species identification of Candida are time-consuming and lack the required sensitivity and specificity. In this study, we have established a seminested PCR (snPCR) using universal and species-specific primers for detection of Candida species in saliva. The universal outer primers amplified the 3end of 5.8S ribosomal DNA (rDNA) and the 5end of 28S rDNA, including the internally transcribed spacer 2 (ITS2), generating 350- to 410-bp fragments from the four commonly encountered Candida spp., viz., C. albicans, C. tropicalis, C. glabrata, and C. parapsilosis. The saliva from 331 healthy and, over 50 years of aged people lived in Dong-gu, Gwangu city, was collected. Total DNA were extracted by Hoffman-Winston yeast total DNA prep. method and performed t he s nP CR. R esults appeared to b e negative on 292 people ( 88.2%), however, 2 6 people ( 7.9%) were p ositive Candida albicans, 6 people (1.8%) were positive Candida glabrata, 5 people (1.5%) were positive Candida tropicalis, and only 2 person (0.6%) were positive Candida parapsilosis. These result showed that detection and identification of Candida species could be established by saliva analysis, so that snPCR on saliva is useful method of diagnosis of clinical fields
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