Mucorales
Ontology highlight
ABSTRACT:
PROVIDER: PRJDB17581 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| DRR531249_subreads.fastq.gz | Fastqsanger.gz | |||
| DRR531250_subreads.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 3 of 3 |
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Project description:quantitative proteomic results of beef wet-aged 1 day
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Project description:Age-related macular degeneration (AMD) is a leading cause of blindness in the elderly. There are two types of AMD: dry AMD and wet AMD. While laser-induced choroidal neovascularization has been used extensively in the studies of wet AMD by presenting the main features of human wet AMD, there was no established mouse model which fully recapitulates the cardinal features of human dry AMD. In this regard, lack of appropriate mouse model for dry AMD hampered the translational research on the pathogenesis and development of therapeutic agents. We recently suggested that 5XFAD mice could be a mouse model of dry AMD with regard to the amyloid beta (Aβ) related pathology. In this study, using transmission electron microscope, we analyzed ultrastructure of retinal pigment epithelium (RPE) of 5XFAD mice. Of importance, aged 5XFAD mice had ultrastructural changes of RPE and Bruch’s membrane compatible with cardinal features of dry AMD, including loss of apical microvilli and basal infolding of RPE, increased thickness of Bruch’s membrane, basal laminar and linear deposits, and accumulation of lipofuscin granules and undigested photoreceptor outer segment-laiden phagosomes. Using a threshold of 1.2 fold difference, we found “564” differentially expressed genes of which “190” were up-regulated and “374” were down-regulated in the RPE complex of aged 5XFAD mice. These altered genes were implicated in the pathogenesis of AMD including inflammation and immune response-related genes and retinol metabolism-related genes. Taken together, we suggest that aged 5XFAD mice can be used for dry AMD mouse model.
2016-08-10 | GSE85408 | GEO
Project description:Age-related macular degeneration (AMD) is a leading cause of blindness in the elderly. There are two types of AMD: dry AMD and wet AMD. While laser-induced choroidal neovascularization has been used extensively in the studies of wet AMD by presenting the main features of human wet AMD, there was no established mouse model which fully recapitulates the cardinal features of human dry AMD. In this regard, lack of appropriate mouse model for dry AMD hampered the translational research on the pathogenesis and development of therapeutic agents. We recently suggested that 5XFAD mice could be a mouse model of dry AMD with regard to the amyloid beta (Aβ) related pathology. In this study, using transmission electron microscope, we analyzed ultrastructure of retinal pigment epithelium (RPE) of 5XFAD mice. Of importance, aged 5XFAD mice had ultrastructural changes of RPE and Bruchâs membrane compatible with cardinal features of dry AMD, including loss of apical microvilli and basal infolding of RPE, increased thickness of Bruchâs membrane, basal laminar and linear deposits, and accumulation of lipofuscin granules and undigested photoreceptor outer segment-laiden phagosomes. Using a threshold of 1.2 fold difference, we found â564â differentially expressed genes of which â190â were up-regulated and â374â were down-regulated in the RPE complex of aged 5XFAD mice. These altered genes were implicated in the pathogenesis of AMD including inflammation and immune response-related genes and retinol metabolism-related genes. Taken together, we suggest that aged 5XFAD mice can be used for dry AMD mouse model. All 5XFAD mice used were heterozygotes with respect to the transgene, and non-transgenic wild-type littermate (WT) mice served as controls.
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Project description:The biological mechanisms associated with the residual feed intake in ruminants have been harnessed immensely via transcriptome analysis of liver and ruminal epithelium, however, this concept has not been fully explored using whole blood. We applied whole blood transcriptome analysis and gene set enrichment analysis to identify key pathways associated with divergent selection for low or high RFI in beef cattle. A group of 56 crossbred beef steers (average BW = 261.3 ± 18.5 kg) were adapted to a high-forage total mixed ration in a confinement dry lot equipped with GrowSafe intake nodes for period of 49 d to determine their residual feed intake (RFI). After RFI determination, weekly whole blood samples were collected three times from beef steers with the lowest RFI (most efficient; low-RFI; n = 8) and highest RFI (least efficient; high-RFI; n = 8). Prior to RNA extraction, whole blood samples collected were composited for each steer. Sequencing was performed on an Illumina NextSeq2000 equipped with a P3 flow. Gene set enrichment analysis (GSEA) was used to analyze differentially expressed gene sets and pathways between the two groups of steers. Results of GSEA revealed pathways associated with metabolism of proteins, cellular responses to external stimuli, stress, and heat stress were differentially inhibited (false discovery rate (FDR) < 0.05) in high-RFI compared to low-RFI beef cattle, while pathways associated with binding and uptake of ligands by scavenger receptors, scavenging of heme from plasma, and erythrocytes release/take up oxygen were differentially enriched (FDR < 0.05) in high-RFI, relative to low-RFI beef cattle. Taken together, our results revealed that beef steers divergently selected for low or high RFI revealed differential expressions of genes related to protein metabolism and stress responsiveness.
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