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ABSTRACT: Global household drinking water (TW) samples (samples filtered through 0.45 micrometre cellulose ester membranes)

PROVIDER: PRJNA903948 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22372506_1.fastq.gz	Fastqsanger.gz
	SRR22372506_2.fastq.gz	Fastqsanger.gz
	SRR22372507_1.fastq.gz	Fastqsanger.gz
	SRR22372507_2.fastq.gz	Fastqsanger.gz
	SRR22372508_1.fastq.gz	Fastqsanger.gz

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Detergent exposure induces epithelial barrier dysfunction and eosinophilic inflammation in the esophagus

Project description:To investigate the effects of the common household detergent Sodium Dodecyl Sulfate (SDS) on the esophagus we provided mice with 0.5% SDS in their drinking water for 14 days and assessed the effects by various methods including RNA-Seq of whole esophagus homogenates.

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Effect of low-Tw treatment before panicle initiation on the chilling response of spikelets at the booting stage in rice.

Project description:In rice (Oryza sativa L.), chilling-induced male sterility increased when plants experienced low water temperature (Tw, 18 °C for 14 days) before panicle initiation. The number of mature pollen grains after chilling at the booting stage (12 °C for 5 days) was only approximately 45% of total pollen grains in low-Tw plants, whereas it was approximately 71% in normal-Tw plants (Tw not controlled; approximately 23 °C under air temperature of 26 °C/21 °C, day/night). Microarray and quantitative PCR analyses showed that many stress-responsive genes (including OsFKBP65 and genes encoding a large heat shock protein OsHSP90.1, heat-stress transcription factors, and many small heat shock proteins) were strongly up-regulated by chilling in normal-Tw spikelets, but were not or rather down-regulated by chilling in low Tw spikelets. OsAPX2 and genes encoding some other antioxidative enzymes were also significantly down-regulated by low Tw in the chilled spikelets. In low-Tw plants, lipid peroxidation products (malondialdehyde equivalents) were significantly increased in the spikelets after chilling, and ascorbate peroxidase activity in the chilled spikelets was significantly lower than that in normal-Tw plants. Our data suggest that an OsFKBP65-related chilling response, which protects proteins from oxidative damage, is indispensable for chilling tolerance but is lost in low-Tw spikelets.

2014-12-22 | GSE59221 | GEO

The impact of dietary cellulose on transcriptional profiles of colonic epithelial cells during inflammation.

Project description:Purpose: Although dietary cellulose is considered health promoting, there is still a lack of understanding of cellular and molecular mechanisms. The aim of this study was to shed light on possible effects of the fiber on key players in intestinal homeostasis, including intestinal epithelial cells. Method: Mice were fed a diet containing cellulose as the only source of fiber (CD, control diet) or a fiber free diet (FFD, fiber-free diet) for four weeks and then treated with dextran sulphate sodium in the drinking water for five days. To ensure that gene signatures were derived from colonic epithelial cells and not from contaminating lymphocytes, RAG1 KO mice deficient in intraepithelial lymphocytes were used. Results: The analysis of differential expressed genes of colonic epithelial cells revealed multiple effects of dietary cellulose on the transcriptional profiles. In addition, cellulose caused a distinct clustering when comparing signature genes of different epithelial cell types. Conclusion: This study demonstrated that dietary cellulose impacts transcriptional programs in colonic epithelial cells during inflammation.

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Project description:Drinking water samples

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Compound interaction screen on a photoactivatable cellulose membrane (CISCM) identifies drug targets

Project description:Here, we present a compound interaction screen on a photoactivatable cellulose membrane (CISCM) that enables target identification of several drugs in parallel. To this end, we use diazirine-based undirected photoaffinity labeling (PAL) to immobilize compounds on cellulose membranes. Functionalized membranes are then incubated with protein extract and specific targets are identified via quantitative affinity purification and mass spectrometry. CISCM reliably identifies known targets of natural products in less than three hours of analysis time per compound. In summary, we show that combining undirected photoimmobilization of compounds on cellulose with quantitative interaction proteomics provides an efficient means to identify the targets of natural products.

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Human iPSC-derived closed-loop cardiac tissue for drug assessment

Project description:Human iPSC-derived cardiomyocytes (hiPSC-CMs) exhibit functional immaturity, potentially impacting their suitability for assessing drug proarrhythmic potential. We previously devised a Traveling Wave (TW) system to promote maturation in 3D cardiac tissue. To align with current drug assessment paradigms (CiPA and JiCSA), necessitating a 2D monolayer cardiac tissue, we integrated the TW system with a multi-electrode array. This gave rise to a hiPSC-derived closed-loop cardiac tissue (iCT), enabling spontaneous TW initiation and swift pacing of cardiomyocytes from various cell lines. The TW-paced cardiomyocytes demonstrated heightened sarcomeric and functional maturation, exhibiting enhanced response to isoproterenol. Moreover, these cells showcased diminished sensitivity to verapamil and maintained low arrhythmia rates with ranolazine—two drugs associated with a low risk of torsades de pointes (TdP). Notably, the TW group displayed increased arrhythmia rates with high and intermediate risk TdP drugs (quinidine and pimozide), underscoring the potential utility of this system in drug assessment applications..

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Project description:Here, we studied the interaction between dietary (TWD) and genetic factors (APPswe/PS1dE9 and tau P301L mutations) and their effect on memory, brain pathology, global gene expression and on insulin-Akt-GSK3β pathway in brain of mice with four different AD-linked genetic backgrounds: wild-type (AwTw), APPswe/PS1dE9 (A+Tw), P301Ltau (AwT+), and triple transgenic (A+T+).

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Effect of low-Tw treatment before panicle initiation on the chilling response of spikelets at the booting stage in rice.

Project description:In rice (Oryza sativa L.), chilling-induced male sterility increased when plants experienced low water temperature (Tw, 18 M-BM-0C for 14 days) before panicle initiation. The number of mature pollen grains after chilling at the booting stage (12 M-BM-0C for 5 days) was only approximately 45% of total pollen grains in low-Tw plants, whereas it was approximately 71% in normal-Tw plants (Tw not controlled; approximately 23 M-BM-0C under air temperature of 26 M-BM-0C/21 M-BM-0C, day/night). Microarray and quantitative PCR analyses showed that many stress-responsive genes (including OsFKBP65 and genes encoding a large heat shock protein OsHSP90.1, heat shock factors, and many small heat shock proteins) were strongly up-regulated by chilling in normal-Tw spikelets, but were not or rather down-regulated by chilling in low Tw spikelets. OsAPX2 and genes encoding some other antioxidative enzymes were also significantly down-regulated by low Tw in the chilled spikelets. In low-Tw plants, lipid peroxidation products (malondialdehyde equivalents) were significantly increased in the spikelets after chilling, and ascorbate peroxidase activity in the chilled spikelets was significantly lower than that in normal-Tw plants. Our data suggest that an OsFKBP65-related chilling response, which protects proteins from oxidative damage, is indispensable for chilling tolerance but is lost in low-Tw spikelets. Four conditions used: low Tw and chilled, low Tw and not chilled, normal Tw and chilled, normal Tw and not chilled, before panicle initiation and at the booting stage, respectively. Biological replicates: 4 for each treatment.

2014-12-22 | E-GEOD-59221 | biostudies-arrayexpress

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