Comparative Genomic Hybridization (CGH) microarray analysis was used tocompare the genomic compositions of all eighteen Shigella boydii serotype representative strains.The results indicated the genomic ''backb...Comparative Genomic Hybridization (CGH) microarray analysis was used tocompare the genomic compositions of all eighteen Shigella boydii serotype representative strains.The results indicated the genomic ''backbone'' of this subgroup contained 2552 ORFs homologous tononpatho-genic E. coli K12. Compared with the genome of K12199 ORFs were found to be absent in allS. boydii serotype representatives, including mainly outer membrane protein genes and O-antigenbiosynthesis genes. Yet the specific ORFs of S. boydii subgroup contained basically bacteriophagegenes and the function unknown (FUN) genes. Some iron metabolism, transport and type Ⅱ secretionsystem related genes were found in most representative strains. According to the CGH phylogeneticanalysis, the eighteen S. boydii serotype representatives were divided into four groups, in whichserotype C13 strain was remarkably distinguished from the other serotype strains. This groupingresult corresponded to the distribution of some metabolism related genes. Furthermore, the analysisof genome backbone genes, specific genes, and the phylogenetic trees allowed us to discover theevolution laws of S. boydii and to find out important clues to pathogenesis research, vaccinationand the therapeutic medicine development.展开更多
Scedosporium boydii is considered an opportunist fungal pathogen in immunocompromised patients.It also causes serious and fatal central nervous system infections.In this study,a man with brain abscesses infected with ...Scedosporium boydii is considered an opportunist fungal pathogen in immunocompromised patients.It also causes serious and fatal central nervous system infections.In this study,a man with brain abscesses infected with S.boydii was diagnosed using multiple methods,including microscopy,culture combined with Matrix-assisted laser desorption ionization time-of-flight mass spectrometry(MOLDI-TOF MS),internal transcribed spacer sequencing and Metagenomic next-generation sequencing(mNGS).This successful diagnosis highlights the importance of using a variety of techniques to identify and treat infections caused by this dangerous fungus.展开更多
文摘Comparative Genomic Hybridization (CGH) microarray analysis was used tocompare the genomic compositions of all eighteen Shigella boydii serotype representative strains.The results indicated the genomic ''backbone'' of this subgroup contained 2552 ORFs homologous tononpatho-genic E. coli K12. Compared with the genome of K12199 ORFs were found to be absent in allS. boydii serotype representatives, including mainly outer membrane protein genes and O-antigenbiosynthesis genes. Yet the specific ORFs of S. boydii subgroup contained basically bacteriophagegenes and the function unknown (FUN) genes. Some iron metabolism, transport and type Ⅱ secretionsystem related genes were found in most representative strains. According to the CGH phylogeneticanalysis, the eighteen S. boydii serotype representatives were divided into four groups, in whichserotype C13 strain was remarkably distinguished from the other serotype strains. This groupingresult corresponded to the distribution of some metabolism related genes. Furthermore, the analysisof genome backbone genes, specific genes, and the phylogenetic trees allowed us to discover theevolution laws of S. boydii and to find out important clues to pathogenesis research, vaccinationand the therapeutic medicine development.
文摘Scedosporium boydii is considered an opportunist fungal pathogen in immunocompromised patients.It also causes serious and fatal central nervous system infections.In this study,a man with brain abscesses infected with S.boydii was diagnosed using multiple methods,including microscopy,culture combined with Matrix-assisted laser desorption ionization time-of-flight mass spectrometry(MOLDI-TOF MS),internal transcribed spacer sequencing and Metagenomic next-generation sequencing(mNGS).This successful diagnosis highlights the importance of using a variety of techniques to identify and treat infections caused by this dangerous fungus.
