Ontology highlight
ABSTRACT:
PROVIDER: PRJNA686871 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13280204_1.fastq.gz | Fastqsanger.gz | |||
| SRR13280204_2.fastq.gz | Fastqsanger.gz | |||
| SRR13280205_1.fastq.gz | Fastqsanger.gz | |||
| SRR13280205_2.fastq.gz | Fastqsanger.gz | |||
| SRR13280206_1.fastq.gz | Fastqsanger.gz |
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Project description:The effects of increasing addition of green tea in dietary changes the bacterial populations in broiler ileum were evaluated. Four hundreds of AA broilers were randomly assigned to four groups with green tea addition of 0, 0.5, 1 and 2 percent in the diet. The body weight showed no difference but a digital increase positively correlated with addition of green tea. The content of green tea had a linear effect of lengthening the ileum villi. The barcoded DNA pyrosequencing method was used to reveal 15 phyla, 1157phylotypes and 3098 16S operational taxonomic units (OTUs). The most predominant bacterial phyla were Firmicutes (56.89%), Actinobacteria (30.58%), Proteobacteria (8.61%) and Bacteroidetes (2.72%). As the proportion of additional green tea increased, the abundance of phylum Actinobacteria (p=0.003) and Proteobacteria (p=0.049) almost linearly increased, while the proportion of Firmicutes (p=0.027) linearly decreased. Only 2 OTUs were significantly affected by the increased additive, Corynebacteriaceae (p=0.011) and Staphylococcaceae (p= 0.006). Triplot analysis suggested that the dominant phyla of Verrucomicrobia, TM7 and Actinobacteria were clearly related to the addition of green tea. Moreover, green tea addition influenced the construction of microbiota, and lengthened the villus in ileum by Monte Carlo permutation test. These findings provide a new understanding of the ileal microbial ecology, which may be useful in modulating the gut microbiome, and also the proper usage of powdered green tea.
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Project description:Kombucha Tea (KT), a fermented tea with roots in traditional Chinese medicine, has surged in worldwide popularity due to its purported health benefits. KT contains a symbiotic culture of yeast and bacterial species, many of which are considered human probiotics. The molecular basis of the health benefits of KT has yet to be thoroughly explored in any animal model. We establishC. elegansas a model to query the molecular interactions between Kombucha-associated microbes (KTM) and the host. We find that worms have an established gut microbiome after consuming a KTM-exclusive diet that mirrors the microbial community found in the fermenting culture. Remarkably, animals consuming KTMs display strikingly reduced lipid levels, yet develop and reproduce similarly toE. coli-fed animals. Critically, consumption of a non-fermenting mix of KT microbial isolates (Kombucha microbe mix) resulted in elevated fat accumulation, suggesting that KTMs do not impair nutrient absorption. To identify the host metabolic pathways altered by KTMs, we performed mRNA-seq on KTM-fed animals, finding widespread changes in lipid metabolism genes. Specifically, we found that three lysosomal lipase genes are significantly upregulated in these animals. These lipases, LIPL-1-3, have been previously shown to promote lipophagy via catabolism of lipid droplets. Consistently, KTM-fed animals display reduced levels of triglycerides and smaller lipid droplet sizes. We propose that KTM-fed animals exhibit a fasting-like metabolic state, even in the presence of sufficient nutrient availability, possibly through induction of lipophagy. Elucidating the host metabolic response to KT consumption will provide unprecedented insight into how this popular fermented beverage may impact human health and inform its use in complementary healthcare plans.
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Project description:The microRNAs reveal the molecular mechanism involved in the regulation of leaf development in Xinyang Maojian green tea.
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2023-10-03 | GSE232128 | GEO
Project description:Interventions: 30 healthy volunteers (>50yrs) at-risk for CRC by virtue of age and /or other standard risk factors will be recruited to participate in a randomised, three cohort dietary intervention study. with a parallel design to test the effects of Se and green tea alone and in combination on molecular biomarkers for CRC prevention in the normal rectal epithelial cells. They will be instructed to maintain their usual diet during the study but to avoid supplementation with any green tea-related food or drink (limited to <3 cups of black tea per day), and Se-rich foods such as octopus, crab and tuna, liver and kidney or additional Brazil nuts or other nuts (except those Brazil nuts and green tea extract prescribed by us). The study will consist of dietary intervention period of 6 weeks, preceded by a run in period of 4 weeks.
The volunteers will be randomised (randomisation will be computer generated) into one of three groups of 10, receiving
1) Se, supplied as Brazil nuts (6 Brazil nuts daily will provide 48micrograms Se/day);
2) Green tea, supplied as a green tea extract capsule (4 capsules daily will provide 800mg EGCG/day); and
3) Se + green tea (6 Brazil nuts daily + 4 green tea extract capsules daily (will provide 48micrograms Se/day and 800mg EGCG/day).
Six Brazil nuts has been chosen because the average Se concentration (2.7 micrograms Se/g) in Brazil nuts (supplied from Charlesworth, Australia) is relatively low compared to that of the report by Thomson et al, where the Se concentration is 6.4micrograms Se/g, and average weight for one nut is 4g, 2 nuts provided 53 micrograms Se/day (Am J Clin Nutr 2008;87:379-3840). Since the average weight of one Brazil nut (supplied from Charlesworth, Australia) is 3g, 6 Brazil nuts daily will provide 48microgra
Primary outcome(s): Effects of combination diet (Se + green tea) on biomarkers of Wnt pathway (catenin), inflammation (COX-2) and DNA repair (MGMT) in rectal epithelium. Rectal biopsies will be collected and examined by RT-PCR and immunohistochemistry for the expression of these biomarkers at gene and protein levels[Commencement of Intervention (Baseline),
End of intervention (6 weeks) ]
Study Design: Purpose: Prevention; Allocation: Randomised controlled trial; Masking: Open (masking not used);Assignment: Parallel;Type of endpoint: Efficacy
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Project description:Down syndrome is the main genetic cause of intellectual disability and is due to triplication of human chromosome 21 (HSA21). Green tea extracts containing epigallocatechin-3-gallate (green tea) improve cognition both in mouse models and individuals with Down syndrome. We here analyzed the proteome and phosphoproteome alterations in a Down syndrome mouse model, the partial trisomic Ts65Dn mice, and the effect produced by the green tea extract and environmental enrichment (EE). Trisomic hippocampi presented a dysregulated proteome, especially when looking at the phosphorylation level in cognitive-related categories (synaptic proteins, neuronal projection, neuron development, microtubule), and GTPases/kinase activity and chromatin related categories. Green tea, EE, and their phospholipids in the plasma membrane and regulates signal transduction pathways, transcription factors, DNA methylation, mitochondrial function and phosphorylation, and autophagy to exert many of its beneficial biological actions Of interest for DS, it inhibits the activity of the Dual Specificity Tyrosine-Phosphorylation-Regulated Kinase 1A (DYRK1A), a DS candidate gene located in the 21q22.2 human chromosome region4,5. Previous work from our group showed that EGCG partially rescues the effects of overexpression of a DS candidate gene, DYRK1A, on the proteome and phosphoproteome of the hippocampus of TgDyrk1A mice6. However, the extent to which these mechanisms apply to a trisomy scenario is unknown. To get insight in these mechanisms we analyzed changes in protein abundances and phosphorylation in Ts65Dn mice, and their disomic counterparts in baseline conditions and upon three treatments known to improve cognition in Ts65Dn: i) green tea extract containing EGCG, ii) environmental enrichment (EE), and iii) their combination.
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