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Effect of paternal inorganic arsenic exposure on transcriptional profilings of F1-male liver in mouse

ABSTRACT: Effect of paternal inorganic arsenic exposure on transcriptional profilings of F1-male liver in mouse

PROVIDER: PRJNA844575 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19521220_1.fastq.gz	Fastqsanger.gz
	SRR19521220_2.fastq.gz	Fastqsanger.gz
	SRR19521221_1.fastq.gz	Fastqsanger.gz
	SRR19521221_2.fastq.gz	Fastqsanger.gz
	SRR19521222_1.fastq.gz	Fastqsanger.gz

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Effect of paternal inorganic arsenic exposure on transcriptional profilings of F1-male liver in mouse

Project description:Adult male mice (F0) were exposed to 250 ppb inorganic arsenic (iAs) in drinking water before mating with unexposed female mice to generate male F1 offspring (iAsF1-M). Unexposed male mice were bred simultaneously to generate male controls (conF1-M). Both iAsF1-M and conF1-M mice drank normal water without iAs. Adult iAsF1-M and conF1-M mice were harvested to collect liver samples to do RNA-seq.

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DNA methylation profiles of F1 mice sperm of the control group and arsenic group

Project description:Pregnant C3H mice were given tap water (control group) and tap water containing 85 ppm sodium arsenite from gestational day 8 to 18 (arsenic group), respectively. The DNA methylomes of sperm of F1 mice were investigated by RRBS method. The results showed that gestational arsenic exposure increased hypomethylated cytosines in the F1 sperm genome. The present study has indicated environmental impacts on sperm DNA methylome establishment.

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Effects of paternal high cholesterol diet on F1 generation intimal transcriptome

Project description:Purpose: To investigate the effects of paternal high cholesterol diet on the F1 intimal transcriptome related to atherosclerosis. Methods:Three-week-old male LDL Receptor-deficient (LDLR-/-) male mice were fed a low-cholesterol diet (LCD) or high-cholesterol diet (HCD) for 8 weeks and then mated with age-matched control LDLR-/- female mice to generate F1 offspring. F1 LDLR-/- mice were fed a LCD for 16 weeks. Intimal RNA was extracted by injecting Trizol into the aorta and collecting the flow through for further processing. Results: . Total RNA isolated from the F1 intima were then subjected for RNA-sequencing analysis and results show that paternal hypercholesterolemia led to upregulation of 147 genes in the intimal of F1 female mice, many of which are involved in immune and inflammatory pathways.

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DNA methylation profiles of F1 mice sperm of the control group and arsenic group II

Project description:Pregnant C3H mice were given tap water (control group) and tap water containing 85 ppm sodium arsenite from gestational day 8 to 18 (arsenic group), respectively. The DNA methylomes of sperm of F1 mice were investigated by RRBS method. The results showed that gestational arsenic exposure increased hypomethylated cytosines in active retrotransposon subfamilies. The present study has indicated environmental impacts on sperm DNA methylome establishment.

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Project description:Arsenic and mercury are known chemical hazards. The differences in effects from organic and inorganic forms of these toxic elements is less well understood, however. The nematode Caenorhabditis elegans (C. elegans) is a suitable model to investigate the toxicity of environmental hazards. In this study, the transcriptomic profiles of C. elegans exposed to inorganic mercury chloride (HgCl2) and sodium (meta)arsenite (NaAsO2) were assessed alongside organic methylmercury chloride (meHgCl) and dimethylarsinic acid (DMA). For this purpose, adult C. elegans were exposed for 24 h to NaAsO2 (10 µg/ml), DMA (200 µg/ml), HgCl2 (2 µg/ml), and meHgCl (0.5 µg/ml), concentrations that were equitoxic in juveniles for developmental delay. Whole genome gene expression profiles were determined by using Cellegans_UnrestrictedGE_G2519F_020186 Microarray (Agilent Technologies, Santa Clara, CA). The results showed significant changes in the transcriptome of adult C. elegans exposed to NaAsO2, DMA, HgCl2, or meHgCl relative to the control group (C. elegans treated with water). A total of 927 and 1221 differentially expressed genes (DEGs) were found in C. elegans treated with 10 µg/ml NaAsO2 or 200 µg/ml DMA, respectively. Interestingly, only 161 DEGs were in common for these two chemicals. Exposure to 2 µg/ml HgCl2 or 0.5 µg/ml meHgCl altered the expression of 670 and 485 genes, respectively, and out of these genes, 154 were commonly altered by the two treatments. Analysis of DEGs revealed that organic and inorganic forms of arsenic and mercury have different effects on the transcriptome of adult C. elegans.

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