[Detection of oprI gene of Pseudomonas aeruginosa by reverse dot-blot hybridization]. 2004

Hui-zhen Fan, and Wen-jie Huang, and Kun Liang, and Yi Fang, and Li-ren Ma, and Yao-qing Liu
Department of Respiratory Diseases, Guangzhou General Hospital of Guangzhou Command, Guangzhou 510010, China. huizhen2000@163.com

OBJECTIVE To establish a rapid method for detecting Pseudomonas aeruginosa at the early stage of infection. METHODS Specific primers were designed according to oprI gene sequence of Pseudomonas aeruginosa, and the specific probe was synthesized by PCR. After photosensitive biotin labeling of the bacterial DNA, reverse dot-blot hybridization was used to detect Pseudomonas aeruginosa. RESULTS The probe synthesized was highly specific to Pseudomonas aeruginosa without cross reaction with other bacteria, viruses or fungi. The method was capable of detecting 100 ng bacteria DNA. CONCLUSIONS Reverse dot-blot hybridization possesses the merits of speediness and specificity in the detection of Pseudomonas aeruginosa in the early stage of infection.

UI MeSH Term Description Entries
D008074 Lipoproteins Lipid-protein complexes involved in the transportation and metabolism of lipids in the body. They are spherical particles consisting of a hydrophobic core of TRIGLYCERIDES and CHOLESTEROL ESTERS surrounded by a layer of hydrophilic free CHOLESTEROL; PHOSPHOLIPIDS; and APOLIPOPROTEINS. Lipoproteins are classified by their varying buoyant density and sizes. Circulating Lipoproteins,Lipoprotein,Lipoproteins, Circulating
D009693 Nucleic Acid Hybridization Widely used technique which exploits the ability of complementary sequences in single-stranded DNAs or RNAs to pair with each other to form a double helix. Hybridization can take place between two complimentary DNA sequences, between a single-stranded DNA and a complementary RNA, or between two RNA sequences. The technique is used to detect and isolate specific sequences, measure homology, or define other characteristics of one or both strands. (Kendrew, Encyclopedia of Molecular Biology, 1994, p503) Genomic Hybridization,Acid Hybridization, Nucleic,Acid Hybridizations, Nucleic,Genomic Hybridizations,Hybridization, Genomic,Hybridization, Nucleic Acid,Hybridizations, Genomic,Hybridizations, Nucleic Acid,Nucleic Acid Hybridizations
D011550 Pseudomonas aeruginosa A species of gram-negative, aerobic, rod-shaped bacteria commonly isolated from clinical specimens (wound, burn, and urinary tract infections). It is also found widely distributed in soil and water. P. aeruginosa is a major agent of nosocomial infection. Bacillus aeruginosus,Bacillus pyocyaneus,Bacterium aeruginosum,Bacterium pyocyaneum,Micrococcus pyocyaneus,Pseudomonas polycolor,Pseudomonas pyocyanea
D001426 Bacterial Proteins Proteins found in any species of bacterium. Bacterial Gene Products,Bacterial Gene Proteins,Gene Products, Bacterial,Bacterial Gene Product,Bacterial Gene Protein,Bacterial Protein,Gene Product, Bacterial,Gene Protein, Bacterial,Gene Proteins, Bacterial,Protein, Bacterial,Proteins, Bacterial
D012680 Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) Specificity,Sensitivity,Specificity and Sensitivity

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