Porphyromonas levii
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA528971 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| SRR8799737.fastq.gz | Fastqsanger.gz | |||
| SRR8799738.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 3 of 3 |
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Project description:The regulation of endometrial inflammation has important consequences for the resumption of bovine fertility post-partum. All cows experience bacterial influx into the uterus after calving; however a significant proportion fail to clear infection leading to the development of cytological endometritis (CE) and compromised fertility. We hypothesised that early immunological changes could not only act as potential prognostic biomarkers for the subsequent development of disease but also shed light on the pathogenesis of endometritis in the post-partum dairy cow. Here, next-generation sequencing from endometrial biopsies taken at 7 days post-partum (DPP) identified significant expression of inflammatory genes in all cows. Despite the common inflammatory profile and enrichment of the Toll-like receptor, NF?B and TNF signalling pathways, 73 genes and 31 miRNAs differentiated between healthy cows (HC, n=9) and cows which subsequently developed CE at 7 DPP (n=6, FDR<0.1). In healthy cows, 4197 differentially expressed genes between 7 and 21 DPP whereas only 31 genes were differentially expressed in samples from cows with CE. At 21 DPP, a further 1167 genes were differentially expressed between HC cows and cows diagnosed with CE (FDR<0.1). These changes in host gene expression reflected culture-independent microbiological analysis which showed significant differences in uterine bacterial profiles between groups. Inflammatory activity was not confined to the uterus; decreased circulating granulocytes and increased Acute Phase Protein (SAA and HP) plasma expression levels were detected at 7 DPP in cows that developed CE. In conclusion, our data suggests that the major inflammatory cascade activated early post-partum is resolved thereby restoring homeostasis in healthy cows by 21 DPP, but this transition fails to occur in cows which develop CE. Despite a common inflammatory profile, differential expression of specific immune genes may identify cows at risk of prolonged inflammation and the development of CE post-partum. Sixteen Holstein Friesian cows, of mixed parity, within the same university dairy herd were sampled 7 and 21 days postpartum (DPP) in the morning after milking, over an eight week period.
2015-08-01 | E-GEOD-66825 | biostudies-arrayexpress
Project description:The regulation of endometrial inflammation has important consequences for the resumption of bovine fertility post-partum. All cows experience bacterial influx into the uterus after calving; however a significant proportion fail to clear infection leading to the development of cytological endometritis (CE) and compromised fertility. We hypothesised that early immunological changes could not only act as potential prognostic biomarkers for the subsequent development of disease but also shed light on the pathogenesis of endometritis in the post-partum dairy cow. Here, next-generation sequencing from endometrial biopsies taken at 7 days post-partum (DPP) identified significant expression of inflammatory genes in all cows. Despite the common inflammatory profile and enrichment of the Toll-like receptor, NFκB and TNF signalling pathways, 73 genes and 31 miRNAs differentiated between healthy cows (HC, n=9) and cows which subsequently developed CE at 7 DPP (n=6, FDR<0.1). In healthy cows, 4197 differentially expressed genes between 7 and 21 DPP whereas only 31 genes were differentially expressed in samples from cows with CE. At 21 DPP, a further 1167 genes were differentially expressed between HC cows and cows diagnosed with CE (FDR<0.1). These changes in host gene expression reflected culture-independent microbiological analysis which showed significant differences in uterine bacterial profiles between groups. Inflammatory activity was not confined to the uterus; decreased circulating granulocytes and increased Acute Phase Protein (SAA and HP) plasma expression levels were detected at 7 DPP in cows that developed CE. In conclusion, our data suggests that the major inflammatory cascade activated early post-partum is resolved thereby restoring homeostasis in healthy cows by 21 DPP, but this transition fails to occur in cows which develop CE. Despite a common inflammatory profile, differential expression of specific immune genes may identify cows at risk of prolonged inflammation and the development of CE post-partum. Sixteen Holstein Friesian cows, of mixed parity, within the same university dairy herd were sampled 7 and 21 days postpartum (DPP) in the morning after milking, over an eight week period.
2015-08-01 | E-GEOD-66826 | biostudies-arrayexpress
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Project description:M. Berg, J. Plöntzke, S. Leonhard-Marek, K.E. Müller & S. Röblitz. A dynamic model to simulate potassium balance in dairy cows. Journal of Dairy Science 100, 12 (2017).
High-performing dairy cows require a particular composition of nutritional ingredients, adapted to their individual requirements and depending on their production status. The optimal dimensioning of minerals in the diet, one being potassium, is indispensable for the prevention of imbalances. Potassium balance in cows is the result of potassium intake, distribution in the organism, and excretion, and it is closely related to glucose and electrolyte metabolism. In this paper, we present a dynamical model for potassium balance in lactating and nonlactating dairy cows based on ordinary differential equations. Parameter values were obtained from clinical trial data and from the literature. To verify the consistency of the model, we present simulation outcomes for 3 different scenarios: potassium balance in (1) nonlactating cows with varying feed intake, (2) nonlactating cows with varying potassium fraction in the diet, and (3) lactating cows with varying milk production levels. The results give insights into the short- and long-term potassium metabolism, providing an important step toward the understanding of the potassium network, the design of prophylactic feed additives, and possible treatment strategies.
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Project description:The regulation of endometrial inflammation has important consequences for the resumption of bovine fertility post-partum. All cows experience bacterial influx into the uterus after calving; however a significant proportion fail to clear infection leading to the development of cytological endometritis (CE) and compromised fertility. We hypothesised that early immunological changes could not only act as potential prognostic biomarkers for the subsequent development of disease but also shed light on the pathogenesis of endometritis in the post-partum dairy cow. Here, next-generation sequencing from endometrial biopsies taken at 7 days post-partum (DPP) identified significant expression of inflammatory genes in all cows. Despite the common inflammatory profile and enrichment of the Toll-like receptor, NFκB and TNF signalling pathways, 73 genes and 31 miRNAs differentiated between healthy cows (HC, n=9) and cows which subsequently developed CE at 7 DPP (n=6, FDR<0.1). In healthy cows, 4197 differentially expressed genes between 7 and 21 DPP whereas only 31 genes were differentially expressed in samples from cows with CE. At 21 DPP, a further 1167 genes were differentially expressed between HC cows and cows diagnosed with CE (FDR<0.1). These changes in host gene expression reflected culture-independent microbiological analysis which showed significant differences in uterine bacterial profiles between groups. Inflammatory activity was not confined to the uterus; decreased circulating granulocytes and increased Acute Phase Protein (SAA and HP) plasma expression levels were detected at 7 DPP in cows that developed CE. In conclusion, our data suggests that the major inflammatory cascade activated early post-partum is resolved thereby restoring homeostasis in healthy cows by 21 DPP, but this transition fails to occur in cows which develop CE. Despite a common inflammatory profile, differential expression of specific immune genes may identify cows at risk of prolonged inflammation and the development of CE post-partum.
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