Ontology highlight
ABSTRACT:
PROVIDER: PRJNA647909 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR12322700_1.fastq.gz | Fastqsanger.gz | |||
| SRR12322700_2.fastq.gz | Fastqsanger.gz | |||
| SRR12322701_1.fastq.gz | Fastqsanger.gz | |||
| SRR12322701_2.fastq.gz | Fastqsanger.gz | |||
| SRR12322702_1.fastq.gz | Fastqsanger.gz |
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Project description:Gut microbiomes differ among dietary types and stool consistency in the captive red wolf (Canis rufus)
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Project description:Gut microbiomes differ among dietary types and stool consistency in the captive red wolf (Canis rufus) [Run 2 out of 2]
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Project description:Background: The idea of using whole genome microarrays to detect peripheral blood biomarkers for physiological status a fairly new and unexplored method. Identifying biomarkers that can be linked to stress and immune response would be of great importance not only in animal management practices but in humans as well. The main objective of this research was to explore this concept using the North American Red Wolf (Canis rufus) which are exposed to a wide variety of environments from free ranging to confinement. Results: Transcription profiling of peripheral blood samples from 13 red wolf individuals in the Alligator River region of North Carolina revealed a strong signal of differentiation between confined and free-range animals. 482 out of 2,980 transcripts detected on the human Illumina Ref8 oligonucleotide bead arrays were found to differentiate these groups at a false discovery rate of 5 percent. Over-representation of genes in focal adhesion, insulin signaling, proteasomal, and tryptophan metabolism pathways suggests the activation of proinflammatory and stress responses in confined animals. Conclusions: Integration of immunological and physiological signals may leave a signature of lifestyle in the patterns of gene expression in the blood and suggest the possible development of biomarkers for disease and normal conditions. Keywords: Stress Response/Disease State
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Project description:Resistant starches (RS) are dietary compounds processed by the gut microbiota into metabolites, such as butyrate, that are beneficial to the host. The production of butyrate by the microbiome appears to be affected by the plant source and type of RS as well as the individual’s microbiota. In this study, we used in vitro culture and metaproteomic methods to explore the consistency and variations in individual microbiome's functional responses to three types of RS - RS2(Hi Maize 260), RS3(Novelose 330) and RS4(Fibersym RW). Results showed that RS2 and RS3 significantly altered the levels of protein expression in the individual gut microbiomes, while RS4 did not result in significant protein changes. Significantly elevated protein groups were enriched in carbohydrate metabolism and transport functions of families Eubacteriaceae, Lachnospiraceae and Ruminococcaceae. In addition, Bifidobacteriaceae was significantly increased in response to RS3. We also observed taxon-specific enrichments of starch metabolism and pentose phosphate pathways corresponding to this family. Functions related to starch utilization, ABC transporters and pyruvate metabolism pathways were consistently increased in the individual microbiomes in response to RS2 and RS3; in contrast, the downstream butyrate producing pathway response varied. Our study confirm that different types of RS have markedly variable functional effects on the human gut microbiome, and also found considerable inter-individual differences in microbiome pathway responses.
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Project description:We aim to determine if mice in our mouse colony had similar of different microbiomes. To do this, we perfromed 16S sequencing of stool from unifected mice of the gentotypes listed below. We also looked at how infection causes dysbiosis of the mircobiome, measuring 16S sequencing over a C.rodentium infection timecourse.
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Project description:Brucella melitensis and Brucella canis differ by ~75 genes yet B. melitensis is highly virulent for humans while B. canis is considered rarely pathogenic. No identified bacterial factors or mechanisms account for this difference in virulence. To identify functional differences of these two bacteria, gene transcription was examined during infection of murine macrophages and compared to bacteria grown in broth. Our analysis identified transcriptional differences in macrophage infection between B. melitensis and B. canis genes involved in iron transport. Increased transcription of the TonB, enterobactin, and ferric anguibactin transport systems were observed in B. canis but not B. melitensis during infection of macrophages. Therefore, iron appears as an important requirement during the first 24h of infection by B. canis but not for B. melitensis and provides strategies for controlling these pathogens. comparison of total bacterial RNA from Brucella canis infected murine macrophages and broth grown bacteria
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