In utero exposure to arsenic via drinking water impairs lung development and mucociliary clearance genes.
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE37831 | GEO | 2013/06/04
SECONDARY ACCESSION(S): PRJNA163621
REPOSITORIES: GEO
Similar Datasets
Project description:In utero exposure to arsenic via drinking water increases the risk of lower respiratory tract infections during infancy and mortality from bronchiectasis in adulthood. Pregnant mice were exposed to arsenic, and gene expression patterns were profiled in peripheral lung tissue obtained from the offspring at 2 weeks of age. Pregnant Mice (BALB/c, C57BL/6, C3H/HeARC) mice were exposed to arsenic (or control) via drinking water from day 8 of gestation until the birth of their offspring. After giving birth, mothers were given control drinking water. At 2 weeks post-natal age, total RNA was extracted from peripheral lung tissue of the offspring and analysed on Affymetrix microarrays.
2013-06-04 | E-GEOD-37831 | biostudies-arrayexpress
Project description:Ground water Arsenic toxicity is the global problem and millions of people are exposed to elevated levels through drinking water than WHO permiscible limit of 10µg/L. The exposure is associated with various cancerous and non-cancerous diseases. It may alter the gene expression profile of invidual and suppress the activity of various genes giving rise to different diseases. Pakistan, a developing country in South Asian region, also have different areas reported to have elevated Ground water As. levels since 2005. The Present Study aimed to investigate Transcriptome profile of the exposed subjects in two districts of Punjab Province Pakistan. i.e Lahore and Kasur. The population was stratified into three exposure groups comprising Low, Medium and High exposure based on their urinary arsenic levels. We used Agilent Microarrays platform for Transcriptomics analysis and Linear mixed model was used to find differential gene expression associated with Arsenic exposure
2019-12-26 | GSE110852 | GEO
Project description:Ground water Arsenic (As) toxicity is a global problem and millions of people are exposed to elevated levels (more than WHO advised maximum limit of 10µg/L) through drinking water. The exposure is associated with various cancerous and non-cancerous diseases. It may alter DNA methylation profiles of inviduals and suppress the activity of various genes giving rise to different diseases. Pakistan, a developing country in South Asian region, also has reported elevated ground water As levels in various investigations since 2005. However, a very limited biomonitoring studies have been conducted in this context while no study reports molecular changes associated with drinking water As exposure in Pakistan. Within this context, the present study aimed to investigate genome-wide DNA methylation profiles of the exposed subjects in two districts of Punjab Province Pakistan, i.e Lahore and Kasur. The population was stratified into three exposure groups comprising Low, Medium and High exposure based on their urinary arsenic levels. Genome-wide DNA methylation profiles were obtained using MeDIP in combination with NimbleGen 2.1M Deluxe Promotor arrays.
2021-10-27 | GSE157111 | GEO
Project description:Background: The metalloid Arsenic is potentially toxic, genotoxic, and carcinogenic to humans. The metalloid poisining in drinking-water is a widespread problem affecting a large population globally. The toxicant is often found to exceed the recomnded level. the risk of repated exposure is direct as well as transplacental. the primary resion of exposure is the contamination of potable water from the geological sources in many region of the globe. The underlying mechanism of As toxicity is still unknown.
2016-12-12 | GSE54198 | GEO
Project description:Arsenic contamination of drinking water occurs globally and is associated with numerous diseases including skin, lung, and bladder cancers, and cardiovascular disease. The mechanisms behind arsenic's effects remain unclear, but recent research indicates that aresnic acts along sex-specific lines and may be an endocrine disruptor. The objective of this study was to evaluate the nature of gene expression chagnes among males and females exposed to arsenic contaminated water in Bangladesh at high and low dose exposures.The median wAs concentration for the low exposure group was 103 µg/L for males and 117 µg/L for females (range 50–200 µg/L). For the high exposure group, the median wAs concentration was 355 µg /L for males (range 250-500 µg /L) and 434 µg/L for females (range 232–1000 µg /L). The PBMCs of males with high exposure compared to those with low exposure there were 534 differentially expressed genes (p <0.05); and for females with high exposure relative to low exposure there were 645 differentially expressed genes (p <0.05) in PBMCs of females.
2015-06-01 | GSE57711 | GEO
Project description:Genetic analysis of women from the Andes Mountains that are exposed to arsenic in drinking water.
| EGAS00001001168 | EGA
Project description:Concentration- and time-dependent genomic changes in the mouse urinary bladder following exposure to arsenate in drinking water for up to twelve weeks. Inorganic arsenic (Asi) is a known human bladder carcinogen. The objective of this study was to examine the concentration dependence of the genomic response to Asi in the urinary bladders of mice. C57BL/6J mice were exposed for 1 or 12 weeks to arsenate in drinking water at concentrations of 0.5, 2, 10, and 50 mg As/L. Urinary bladders were analyzed using gene expression microarrays. A consistent reversal was observed in the direction of gene expression change: from predominantly decreased expression at 1 week to predominantly increased expression at 12 weeks. These results are consistent with evidence from in vitro studies of an acute adaptive response that is suppressed on longer exposure due to down-regulation of Fos. Pathways with the highest enrichment in gene expression changes were associated with epithelial-to-mesenchymal transition, inflammation, and proliferation. Benchmark dose (BMD) analysis determined that the lowest median BMD values for pathways were above 5 mg As/L, despite the fact that pathway enrichment was observed at the 0.5 mg As/L exposure concentration. This disparity may result from the non-monotonic nature of the concentration-responses for the expression changes of a number of genes, as evidenced by the much fewer gene expression changes at 2 mg As/L compared to lower or higher concentrations. Pathway categories with concentration-related gene expression changes included cellular morphogenesis, inflammation, apoptosis/survival, cell cycle control, and DNA damage response. The results of this study provide evidence of a concentration-dependent transition in the mode of action for the subchronic effects of Asi in mouse bladder cells in the vicinity of 2 mg Asi/L.
2011-09-15 | GSE32102 | GEO
Project description:Concentration- and time-dependent genomic changes in the mouse urinary bladder following exposure to arsenate in drinking water for up to twelve weeks. Inorganic arsenic (Asi) is a known human bladder carcinogen. The objective of this study was to examine the concentration dependence of the genomic response to Asi in the urinary bladders of mice. C57BL/6J mice were exposed for 1 or 12 weeks to arsenate in drinking water at concentrations of 0.5, 2, 10, and 50 mg As/L. Urinary bladders were analyzed using gene expression microarrays. A consistent reversal was observed in the direction of gene expression change: from predominantly decreased expression at 1 week to predominantly increased expression at 12 weeks. These results are consistent with evidence from in vitro studies of an acute adaptive response that is suppressed on longer exposure due to down-regulation of Fos. Pathways with the highest enrichment in gene expression changes were associated with epithelial-to-mesenchymal transition, inflammation, and proliferation. Benchmark dose (BMD) analysis determined that the lowest median BMD values for pathways were above 5 mg As/L, despite the fact that pathway enrichment was observed at the 0.5 mg As/L exposure concentration. This disparity may result from the non-monotonic nature of the concentration-responses for the expression changes of a number of genes, as evidenced by the much fewer gene expression changes at 2 mg As/L compared to lower or higher concentrations. Pathway categories with concentration-related gene expression changes included cellular morphogenesis, inflammation, apoptosis/survival, cell cycle control, and DNA damage response. The results of this study provide evidence of a concentration-dependent transition in the mode of action for the subchronic effects of Asi in mouse bladder cells in the vicinity of 2 mg Asi/L. Female C57Bl/J mice will be exposed to COLD Arsenate in drinking water. One week interium sac on 7/18/06. 100 samples including liver, lung, kidney and bladder. Bladder will be analyzed with microarrays, 24 samples. Twelve week terminal sac on 10/05/06. 75 total samples including lung, kidney, and bladder. Bladdler will be analyzed by microarray, 25 samples. Drinking water containing As will be prepared weekly with monitoring to determine amount used by mice. Following tissues will be available for genomic study: Bladder, liver, lung, and kidney.
2011-09-14 | E-GEOD-32102 | biostudies-arrayexpress
Project description:Liver RNA samples from C57BL6 mice drinking Hydrogen water for 4 weeks We used microarrays to detail the gene expression after drinking hydrogen water.
2017-09-19 | GSE103941 | GEO
Project description:Total RNA was purified from keratinocytes isolated from FFPE arsenic-induced skin lesion samples collected from individuals exposed to high concentrations of arsenic exceeding 50 ppb in drinking water in Murshidibad district of West Bengal, India.
2018-06-01 | GSE102892 | GEO