Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1136258 | ENA |
REPOSITORIES: ENA
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Project description:We used phylogenetic low-density microarrays targeting the 16S rRNA gene to characterize the gingival flora of acute noma and acute necrotizing gingivitis lesions, and compared them to healthy control subjects of the same geographical and social background. Various types of samples were collected (column characteristics); patients from the same hospital without mouth infection (H), matched control populations (T), patients suffering gengivitis (Gengivitis), patient suffering NOMA (noma), patient suffering NOMA receiving antimicrobials (N-ATB). Sampled from patients were retrieved from both sides (column Description); healthy- or lesion-side of the mouth. All controls are matched with specific patients (see column patient category and number)
2013-12-27 | GSE43612 | GEO
Project description:This dataset contains microarray data from normal controls (aged 20-99 yrs) and Alzheimer's disease cases, from 4 brain regions: hippocampus, entorhinal cortex, superior frontal cortex, post-central gyrus. Changes in expression of synaptic and immune related genes were analyzed, investigating age-related changes and AD-related changes, and region-specific patterns of change. These AD cases were processed simultaneously with the control cases (young and aged) included in GSE11882 (GSE11882 dataset contains data exclusively from normal control brains).
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Project description:We used phylogenetic low-density microarrays targeting the 16S rRNA gene to characterize the gingival flora of acute noma and acute necrotizing gingivitis lesions, and compared them to healthy control subjects of the same geographical and social background. Various types of samples were collected (column characteristics); patients from the same hospital without mouth infection (H), matched control populations (T), patients suffering gengivitis (Gengivitis), patient suffering NOMA (noma), patient suffering NOMA receiving antimicrobials (N-ATB). Sampled from patients were retrieved from both sides (column Description); healthy- or lesion-side of the mouth. All controls are matched with specific patients (see column patient category and number) We designed low-density 16S rDNA arrays representing 339 different phylotypes. We used an arbitrary cutoff of 1% of overall abundance to select from this dataset the most abundant sequences for probe design. Using this cutoff, the 132 most abundant 16S rRNA gene sequences were scanned for probes respecting defined physico-chemical properties (Tm = 65M-BM-15M-BM-0C; probe length = 23M-bM-^@M-^S50 nt; < -5.0 kcal/mol for hairpins; < -8.0 kcal/mol for self-dimers; and dinucleotide repeats shorter than 5 bp) using a commercial software (Array Designer TM 2.0 by Premier Biosoft). The 335 oligonucleotide probes were synthesized with a C6-linker with free primary amine (Sigma-Aldrich) and spotted on ArrayStrips microarrays (Clondiag GmbH, Jena, Germany).
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Project description:SNP arrays were combined with next generation sequencing (NGS) to precisely define the deleted region in 17 primary 11q-loss neuroblastomas and identify allelic variants in genes relevant for neuroblastoma aetiology. We assessed PARP inhibitor olaparib in combination with other chemotherapy medications using both in vitro and in vivo models.
2017-07-18 | GSE101533 | GEO
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Project description:The obligate intracellular bacterium, Ehrlichia ruminantium (ER) is the causal agent of Heartwater, a fatal disease in ruminants. It is transmitted by ticks of the genus Amblyomma. Here, we report the genomic comparative and the global transcriptional profile of 4 strains of ER, Gardel and Senegal, two distant virulent strains with their corresponding attenuated strains. Our results showed a higher metabolic activity in attenuated strains compared to virulent strains, suggesting a better adaptation in vitro of attenuated strains to the host cells. There was a strong modification of membrane protein encoding genes expression for the 4 strains. A major over-expression of map1-related genes was observed for virulent strains, whereas attenuated strains over-expressed genes encoding for hypothetical membrane proteins. This result suggests that in vivo, MAP-1 related proteins could induce non-protective immune responses for virulent strains. For the attenuated strains, the lack of expression of map1-related genes and over-expression of other membrane proteins encoding genes could be important in induction of efficient immune responses.The diminution of expression of many genes in attenuated Senegal was caused by severe mutation. One of them, the gene recO is involved in DNA repair and its mutation could explain the higher proportion of mutated genes in attenuated Senegal, inducing the faster attenuation of Senegal compared to Gardel.
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