The effects of ibuprofen on the transcriptome of a euryhaline fish
Ontology highlight
ABSTRACT:
ORGANISM(S): Menidia beryllina
PROVIDER: GSE64967 | GEO | 2015/09/01
SECONDARY ACCESSION(S): PRJNA272607
REPOSITORIES: GEO
Similar Datasets
Project description:Ibuprofen is one of the most commonly detected pharmaceuticals in wastewater effluent; however the effects of ibuprofen on aquatic organisms are poorly understood. This study presents the transcriptome-wide response of the inland silverside, Menidia beryllina, to chronic 14 d exposures to ibuprofen. Twenty-four samples were run on twenty-four arrays, there were six replicates for each of three ibuprofen exposure concentrations and a control group.
2015-09-01 | E-GEOD-64967 | biostudies-arrayexpress
Project description:Bifenthrin is a commonly detected pesticide in California surfacewaters; however the effects of bifenthrin on aquatic organisms are complex and poorly understood. This study presents the transcriptome-wide response of the inland silverside, Menidia beryllina, to chronic 14 d exposures to bifenthrin.
2016-10-31 | GSE74455 | GEO
Project description:Our study makes use of zebrafish and has determined hepatic transcriptional changes after exposure to four single pharmaceuticals, a pharmaceutical mixture (MIX), and wastewater effluent (WWE) exposures. The pharmaceuticals chosen include acetaminophen, carbamazepine, gemfibrozil, and venlafaxine. We have performed chronic (6 week), low concentration (0.5 and 10 μgL-1 or 5 and 25% effluent) exposure of male and female fish and previously determined a range of effects (reproductive, histological, hormonal) after exposure to single compounds, a mixture of these compounds or wastewater effluent. Herein we determine by microarray the hepatic transcriptional responses of male and female zebrafish from the same exposures.
2019-12-23 | GSE43491 | GEO
Project description:Patancheru, near Hyderabad, India, is a major production site for the global bulk drug market. About 90 manufacturers send their wastewater to a common treatment plant in Patancheru. Extraordinary high levels of a wide range of pharmaceuticals have recently been demonstrated in the treated effluent. As little as 0.2% of this effluent can strongly reduce the growth rate of tadpoles, but the underlying mechanisms of toxicity are not known. To begin addressing how the effluent affects aquatic vertebrates, rainbow trout (Oncorhynchus mykiss) were exposed to 0.2% effluent for five days. Several physiological endpoints, together with effects on global hepatic gene expression patterns, were analyzed. The exposed fish showed both an induction of hepatic cytochrome P450 1A (CYP1A) gene expression, as well as EROD activity. Clinical blood chemistry analyses revealed an increase in plasma phosphate levels, which in humans indicates impaired kidney function. Several oxidative stress-related genes were induced in the livers, however, no significant changes in antioxidant enzyme activities or in the hepatic glutathione levels were found. Furthermore, estrogen-regulated genes were slightly up-regulated following exposure, and moderate levels of estriol were detected in the effluent. This study identifies changes in gene expression triggered by exposure to a high dilution of the effluent, supporting the hypothesis that these fish are responding to chemical exposure. The pattern of regulated genes may contribute to the identification of mechanisms of sub-lethal toxicity, as well as illuminate possible causative agents.
2009-07-20 | GSE15124 | GEO
Project description:The endocrine disrupting pharmaceuticals, non-steroidal anti-inflammatory drugs (NSAIDs) and 17α-ethinyl-estradiol (EE2), are among the most relevant molecules found in aquatic ecosystems, surface and drinking water due to their incomplete removal by wastewater treatment plants. Exposure to therapeutic doses has a negative impact on gonadal development and fertility in rodent models; however, the effects of their chronic exposure at lower doses are not known. In this study, we investigated the impact of chronic exposure to a mixture containing ibuprofen, 2hydroxy-ibuprofen, diclofenac, and EE2 at two environmentally relevant doses (added to the drinking water from fetal life, 8.5 dpc, until sexual maturity) on the reproductive tract in F1 exposed mice and their F2 offspring. In adult F1 and F2 animals, chronic exposure to low environmental doses of IBU, 2hydroxy-IBU, DCF, and EE2 mixtures, affected reproductive organ maturation, estrous cyclicity (in females), spermiogenesis (in males), and some sperm parameters in F2 males. Transcriptomics further revealed significant changes in gene expression patterns and associated pathways, underlying the modified mechanisms on testis and ovarian physiology and on germ cells, the precursors of gametes. Consequently, fertility of F1 male and female animals exposed to the higher dose of pharmaceuticals and that of their F2 offsprings, measured through the total number of pups and the time between litters, was affected after 5 months of age. This suggested that exposure to these drug cocktails has an inter-generational impact.
2024-01-01 | GSE235393 | GEO
Project description:Patancheru, near Hyderabad, India, is a major production site for the global bulk drug market. About 90 manufacturers send their wastewater to a common treatment plant in Patancheru. Extraordinary high levels of a wide range of pharmaceuticals have recently been demonstrated in the treated effluent. As little as 0.2% of this effluent can strongly reduce the growth rate of tadpoles, but the underlying mechanisms of toxicity are not known. To begin addressing how the effluent affects aquatic vertebrates, rainbow trout (Oncorhynchus mykiss) were exposed to 0.2% effluent for five days. Several physiological endpoints, together with effects on global hepatic gene expression patterns, were analyzed. The exposed fish showed both an induction of hepatic cytochrome P450 1A (CYP1A) gene expression, as well as EROD activity. Clinical blood chemistry analyses revealed an increase in plasma phosphate levels, which in humans indicates impaired kidney function. Several oxidative stress-related genes were induced in the livers, however, no significant changes in antioxidant enzyme activities or in the hepatic glutathione levels were found. Furthermore, estrogen-regulated genes were slightly up-regulated following exposure, and moderate levels of estriol were detected in the effluent. This study identifies changes in gene expression triggered by exposure to a high dilution of the effluent, supporting the hypothesis that these fish are responding to chemical exposure. The pattern of regulated genes may contribute to the identification of mechanisms of sub-lethal toxicity, as well as illuminate possible causative agents. Two exposure experiments were conducted with control fish and fish exposed to 0.2% effluent. 19 pools of RNA, each containing three fish, were hybrdizied to in situ synthesized custom-made oligonucleotide microarrays. In total, four exposed and four control pools from exposure experiment I and five exposed and six control pools from exposure experiment II were analyzed.
2010-06-24 | E-GEOD-15124 | biostudies-arrayexpress
Project description:Despite recent knowledge of the potential environmental impact that compounds present in municipal wastewater effluents, including contaminants of emerging concern (CECs), may have, the implications of fish exposure to this contaminant mixtures are not completely understood. The effects caused by effluent CECs may be subtle and diverse, thus the need for sensitive and comprehensive tools such as gene expression to detect such responses. In this study, we conducted laboratory exposures that examined plasma concentrations of vitellogenin (VTG), changes in secondary sexual characteristics and gene expression in sexually mature male fathead minnows (Pimephales promelas) exposed to environmentally realistic (0.5%) and higher (5%) concentrations of municipal wastewater effluents. Secondary and primary treated effluents were used. Several of the 32 CECs investigated were detected, including pharmaceuticals, personal care products, hormones, current use pesticides and industrial compounds. The percent of males with detectable levels of VTG was higher in fish exposed to effluent treatments. An increased number of males with changes in secondary sexual characteristics (e.g. development of ovipositors), was observed in fish exposed to 5% effluent treatments. Gene expression data indicated that overall expression patterns were characteristic to each effluent. Higher numbers of differentially expressed genes were observed in fish exposed to primary treated effluent when compared to controls. Differentially expressed genes belonged to several functional categories, including xenobiotic metabolism, estogenicity and energy/metabolism processes. Gene expression data provided information to understand some of the mechanisms behind the effects observed at higher biological levels. To investigate gene expression responses resulting from exposure to POTW effluents, two laboratory experiments were conducted using effluent from San Diego (Point Loma; SD) and Los Angeles (Hyperion; LA). The LA effluent received secondary treatment and the SD effluent received advanced primary treatment. Treatments used during exposures consisted of negative controls (moderately hard water), positive controls (E2), and 0.5% and 5% effluent concentrations. The 0.5% concentration of effluent represented an environmentally realistic exposure level. The 5% effluent concentration represented a higher level at which we expected biological responses. The exposures lasted 14 days. Treatments: EFFHa = 5% primary treated effluent EFFHb = 5% secondary treated effluent EFFLa = 0.5% primary treated effluent E2a = Estradiol, positive control for primary effluent E2b = Estradiol, positive control for secondary effluent CTRLa = Moderately hard water, negative control for primary effluent CTRLb = Moderately hard water, negative control for secondary effluent
2011-05-18 | E-GEOD-29350 | biostudies-arrayexpress
Project description:Wastewater treatment plant (WWTP) effluent-dominated streams provide critical habitat for aquatic and terrestrial organisms but also continually expose them to complex mixtures of pharmaceuticals that can potentially impair growth, behavior, and reproduction. Currently, few biomarkers are available that relate to pharmaceutical-specific mechanisms of action. In the experiment reported in this paper, zebrafish (Danio rerio) embryos at two developmental stages were exposed to water samples from three sampling sites (0.1 km upstream of the outfall, at the effluent outfall, and 0.1 km below the outfall) during base-flow conditions from two months (January and May) of a temperate-region effluent-dominated stream containing a complex mixture of pharmaceuticals and other contaminants of emerging concern. RNA-sequencing identified potential biological impacts and biomarkers of WWTP effluent exposure that extend past traditional markers of endocrine disruption. Transcriptomics revealed changes to a wide range of biological functions and pathways including cardiac, neurological, visual, metabolic, and signaling pathways. These transcriptomic changes varied by developmental stage and displayed sensitivity to variable chemical composition and concentration of effluent, thus indicating a need for stage-specific biomarkers. Some transcripts are known to be associated with genes related to pharmaceuticals that were present in the collected samples. Although traditional biomarkers of endocrine disruption were not enriched in either month, a high estrogenicity signal was detected upstream in May and implicates the presence of unidentified chemical inputs not captured by the targeted chemical analysis. This work reveals associations between bioeffects of exposure, stage of development, and the composition of chemical mixtures in effluent-dominated surface water. The work underscores the importance of measuring effects beyond the endocrine system when assessing the impact of bioactive chemicals in WWTP effluent and identifies a need for non-targeted chemical analysis when bioeffects are not explained by the targeted analysis.
2023-08-01 | GSE179335 | GEO
Project description:An anthropogenic chemical contaminant commonly identified in aquatic receiving environments is the non-steroidal anti-inflammatory drug (NSAID), ibuprofen(IBF). While the role of ibuprofen in target organisms is known, there exists a paucity of data on the impact of exposure to non-target wildlife species. In the case of frog species, normal development and environmental fitness involves the actions of the thyroid hormones (THs), particularly at key points in the life cycle. We investigated whether exposure of premetamorphic North American bullfrog (Rana catesbeiana) tadpoles to IBF altered their response to treatment with an exogenous dose of thyroid hormone (T3).
2014-09-23 | GSE53565 | GEO
Project description:An anthropogenic chemical contaminant commonly identified in aquatic receiving environments is the non-steroidal anti-inflammatory drug (NSAID), ibuprofen(IBF). While the role of ibuprofen in target organisms is known, there exists a paucity of data on the impact of exposure to non-target wildlife species. In the case of frog species, normal development and environmental fitness involves the actions of the thyroid hormones (THs), particularly at key points in the life cycle. We investigated whether exposure of premetamorphic North American bullfrog (Rana catesbeiana) tadpoles to IBF altered their response to treatment with an exogenous dose of thyroid hormone (T3). Six animals randomly selected from each treatment were examined for the status of the hepatic transcriptome using MAGEX DNA array analysis.
2014-09-23 | E-GEOD-53565 | biostudies-arrayexpress