Detection of Pathogens Causing Genital Ulcer Diseases Using Gene Chip Techniques
- VernacularTitle:基因芯片技术检测生殖器溃疡性性病病原体
- Author:
Aiying LIU
;
Jianfang SUN
;
Yueping YIN
;
Xiangsheng CHEN
;
Yanhua YU
;
Jinping ZHANG
;
Min XU
;
Shuqi WANG
- Publication Type:Journal Article
- Keywords:
Oligonucleotide array sequence analysis;
Sexually transmitted diseases
- From:
Chinese Journal of Dermatology
1994;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop a gene chip for the detection of pathogens causing genital ulcer diseases (GUDs). Methods Specific probes of 4 different pathogens were designed and synthesized. Gene chip was prepared by blotting the probes onto specially treated glass slides with the use of a robotics. Target genes of standard strains for the 4 different pathogens and the clinical specimens were amplified by PCR with Cy5 fluorescence labeled primers. The labeled amplicons were hybridized with gene chips, and then scanned and analyzed using computer software. Results The fluorescence signal for specific pathogen could be found in the gene chip, illustrating that one specific fluorescence signal denoted a single pathogen, and the combination of different signals denoted the corresponding co-existence of pathogens. Examination of 40 clinical specimens obtained from 40 patients with genital ulcers with gene chip was in good concordance with dark-field microscopy plus PCR or HSV culture plus PCR, showing Kappa values of 0.882 and 0.947, respectively. In addition, mixed infections were detected in 2 specimens. Conclusion Gene chip is a sensitive method with a reliable result and it can detect multiple infections simultaneously.
