Project description:The increasing antibiotic resistance of Klebsiella pneumoniae poses a serious threat to global public health. To investigate the antibiotic resistance mechanism of Klebsiella pneumonia, we performed gene expression profiling analysis using RNA-seq data for clinical isolates of Klebsiella pneumonia, KPN16 and ATCC13883. Our results showed that mutant strain KPN16 is likely to act against the antibiotics through increased increased butanoate metabolism and lipopolysaccharide biosynthesis, and decreased transmembrane transport activity.
2023-04-18 | GSE229867 | GEO
Project description:wastewater resistome of Residential Aged Care Facilities
Project description:The study aimed to characterize plasmids mediating carbepenem resistance in Klebsiella pneumoniae in Pretoria, South Africa. We analysed 56 K. pneumoniae isolates collected from academic hospital around Pretoria. Based on phenotypic and molecular results of these isolates, 6 representative isolates were chosen for further analysis using long reads sequencing platform. We observed multidrug resistant phenotype in all these isolates, including resistance to aminoglycosides, tetracycline, phenicol, fosfomycin, floroquinolones, and beta-lactams antibiotics. The blaOXA-48/181 and blaNDM-1/7 were manily the plasmid-mediated carbapenemases responsible for carbapenem resistance in the K. pneumoniae isolates in these academic hospitals. These carbapenemase genes were mainly associated with plasmid replicon groups IncF, IncL/M, IncA/C, and IncX3. This study showed plasmid-mediated carbapenemase spread of blaOXA and blaNDM genes mediated by conjugative plasmids in Pretoria hospitals.
Project description:Purpose: The aim of this study is to determine the absolute and relative expresson levels of mRNA transcripts across two purbred (Angus and Brahman) cattle and their receipicalcross. Methods: Total RNA was extracted and purified from five tissues using the RiboZero Gold kit. Sequencing libraries were prepared with a KAPA Stranded RNA-Seq Library Preparation Kit following the Illumina paired-end library preparation protocol. Completed libraries were sequenced on HiSeq 2000 as 100 bp paired-end reads at the Australian Cancer Research Foundation (ACRF) Cancer Genomics Facility, Adelaide, Australia and USDA-ARS-US Meat Animal Research Center, Clay Center, USA. Approximately 60 million 100 bp single-end reads were obtained for each sample. Reads were aligned to the cattle reference genome UOA_brahman_1/UOA_angus_1 and mapped to known genomic features at the gene level using the Hisat2. Single reads were then summarized into gene-level counts using FeatureCounts.
Project description:The emergence and spread of polymyxin resistance, especially among Klebsiella pneumoniae isolates threaten the effective management of infections. This study profiled for polymyxin resistance mechanisms and investigated the activity of polymyxins plus vancomycin against carbapenem- and polymyxin-resistant K. pneumoniae.
Project description:We transplanted Klebsiella and Lactobacillus to germ free C57/B6J mice. All of the recipients mice were male. Here we report the intestine mRNA profiles of recipients mice with Klebsiella and Lactobacillus.
