Project description:A CHG microarray for detection and identification of bacteria and viruses pathogenic on maize Two-condition experiment, Agilent SurePrint G3 Cust. CGH Microarray 4x180K
Project description:In order to evaluate the performance of CNV detection in next-generation sequencing platform in varied sample types, we employed chromosomal microarray analysis (CMA) for validation of the samples with NGS-based detection results (NCBI Sequence Read Archive with accession number SRA296708). Besides snp-array, we used a customized array Comparative Genomics Hybridization (aCGH, Agilent) approach for a cohort of clinical samples including early abortus, induced termination, prenatal samples and postnatal samples. CMA results were compared with NGS-based detection results. 100% consistency was obtained between NGS-based approach and CMA in pathogenic or likely pathogenic CNVs detection.
Project description:We designed a pan-Microbial Detection Array (MDA) to detect all known viruses (including phage), bacteria, and plasmids. Family-specific probes were selected for all sequenced viral and bacterial complete genomes, segments, and plasmids. Probes were designed to tolerate some sequence variation to enable detection of divergent species with homology to sequenced organisms. The array has wider coverage of bacterial and viral targets based on more recent sequence data and more probes per target than other microbial detection/discovery arrays in the literature. In blinded lab testing on spiked samples with single or multiple viruses, the MDA was able to correctly identify species or strains. In clinical fecal, serum, and respiratory samples, the MDA was able to detect and characterize multiple viruses, phage, and bacteria in a sample to the family and species level, as confirmed by PCR. Testing of microbial detection array with mixtures of known viruses, blinded clinical samples and viral cell culture samples.
Project description:We designed a pan-Microbial Detection Array (MDA) to detect all known viruses (including phage), bacteria, and plasmids. Family-specific probes were selected for all sequenced viral and bacterial complete genomes, segments, and plasmids. Probes were designed to tolerate some sequence variation to enable detection of divergent species with homology to sequenced organisms. The array has wider coverage of bacterial and viral targets based on more recent sequence data and more probes per target than other microbial detection/discovery arrays in the literature. In blinded lab testing on spiked samples with single or multiple viruses, the MDA was able to correctly identify species or strains. In clinical fecal, serum, and respiratory samples, the MDA was able to detect and characterize multiple viruses, phage, and bacteria in a sample to the family and species level, as confirmed by PCR. Testing of microbial detection array with mixtures of known viruses, blinded clinical samples and viral cell culture samples.
Project description:The mammalian oviduct is a dynamic organ and the venue of important events leading to the establishment of pregnancy. Oviductal epithelial cells are involved in direct contact and specific interactions with different self and non-self entities (oocyte, sperm, etc.).The aim of this study was to determine if the oviduct is able to distinguish between different types of non-self-entities. We used an in vitro model to determine genes altered in oviductal epithelial cell (OPEC) in response to the presence of spermatozoa, mammalian somatic cells (red blood cell) or bacteria. We hypothesised that alteration of OPEC expression profile in response to boar spermatozoa (friendly non-self entity), red blood cells (non-pathogenic, non-self entity) and bacteria (pathogenic non-self entity) is indicative of recognition of self and non-self entities by these cells as well as recognition of pathogenic from non-pathogenic non-self entities. Oviductal epithelial cells (OPEC) were co-incubated in the presence of (i) bacteria (1 x 10˄8 bacteria), (ii) sperm (1 X 10 ˄ 6 spermatozoa/ml) or (iii) red blood cell (5 x 10 ˄ 6 red blood cell/ml) for 24 hours in HAM-12 media. Three biological replicates were performed for each group and a total of 12 Affymetrix Porcine arrays were used to identify the expression profiles of OPEC alone (3 arrays) or in the presence of (i) bacteria (3 arrays), (ii) sperm (3 arrays) or (iii) red blood cells (3 arrays).
Project description:Leaves are colonised by a complex mix of microbes, termed the leaf microbiota. Even though the leaf microbiota is increasingly recognised as an integral part of plant life and health, our understanding of its interactions with the plant host is still limited. Here, mature, axenically grown Arabidopsis thaliana plants were spray-inoculated with diverse leaf-colonising bacteria. Whole transcriptome sequencing revealed that four days after inoculation, leaf transcriptional changes to colonisation by non-pathogenic and pathogenic bacteria differed in strength but not in the type of response.
Project description:CNV are known to be a frequent cause of the autism spectrum disorders (ASD) and intellectual disabilities (ID). However, the clinical heterogeneity of both disorders causes the diagnostic efficacy of CNV analysis to be modest. We conclude that comorbidities such as microcephaly, facial dysmorphia and epilepsy increase the risk of the pathogenic CNV finding in patients with ID and ASD. However, the significance of these comorbidities differs between both groups and shows dependency on whether the patients were primarily classified as ID or ASD. We suggest that stratification of the patients according to their comorbidities before testing can increase the yield of the detection rate of pathogenic CNV in both groups. The likelihood of pathogenic CNV detection in ASD patients without any comorbidities is low. Therefore, the effectivity of CNV analysis in these cases is modest