Quantitative High Throughput Assay for Detection of Biologically Active Endocrine Disrupting Chemicals in Water

2014 ◽  
pp. 750-763
Keyword(s):  
High Throughput ◽  
Endocrine Disrupting Chemicals ◽  
Biologically Active ◽  
Endocrine Disrupting ◽  
High Throughput Assay

A high throughput screening method for endocrine disrupting chemicals in tap water and milk samples based on estrogen receptor α and gold nanoparticles

2020 ◽  
Vol 12 (2) ◽  
pp. 200-204 ◽  
Author(s):  
Mengyue Liu ◽  
Shengqiang Zhang ◽  
Shuyuan Du ◽  
Shuxue Pang ◽  
Xiaoyu Liu ◽  
...  
Keyword(s):  
High Throughput ◽  
High Throughput Screening ◽  
Tap Water ◽  
Endocrine Disrupting Chemicals ◽  
Screening Method ◽  
Estrogen Receptor Α ◽  
Food Samples ◽  
Screening Methods ◽  
Estrogenic Effects ◽  
Endocrine Disrupting

Increasing concern over endocrine disrupting chemicals (EDCs) in environmental and food samples has created the demand for rapid and high throughput screening methods to evaluate their estrogenic effects.

scholarly journals Rapid, High-Throughput Detection of Endocrine Disrupting Chemicals Using Autobioluminescent Cellular Bioreporters

2018 ◽  
Author(s):  
Tingting Xu ◽  
Andrew Kirkpatrick ◽  
Jody Toperzer ◽  
Marvin Steven Furches ◽  
Steven Ripp ◽  
...  
Keyword(s):  
High Throughput ◽  
Endocrine Disrupting Chemicals ◽  
Endocrine Disrupting ◽  
High Throughput Detection

UV/H2O2 degradation of endocrine-disrupting chemicals in water evaluated via toxicity assays

2007 ◽  
Vol 55 (12) ◽  
pp. 313-319 ◽  
Author(s):  
Karl G. Linden ◽  
Erik J. Rosenfeldt ◽  
Seth W. Kullman
Keyword(s):  
Natural Waters ◽  
Endocrine Disrupting Chemicals ◽  
The United States ◽  
Biologically Active ◽  
Destruction Efficiency ◽  
Low Concentrations ◽  
Endocrine Disrupting ◽  
Water And Wastewater ◽  
Uv Dose ◽  
Water Values

Due to rising concern regarding the presence of endocrine-disrupting chemicals (EDCs) in surface water and groundwater throughout the United States, Asia and Europe, treatment of these chemicals in drinking water and wastewater to protect human health and the environment is an area of great interest. Many conventional treatment schemes are relatively ineffective in removing EDCs from water and wastewater. This is concerning because these chemicals are biologically active at very low concentrations and effects of mixtures are relatively unknown. 17-α-oestradiol (E2) and 17-β-ethinyl-oestradiol (EE2), suspected EDCs, were degraded significantly by the UV/H2O2 AOP. The UV/H2O2 processes using either low or medium pressure lamps were degraded EDCs by between 80 and 99.3% at a 15 ppm H2O2 concentration and a UV dose of 1,000 mJ/cm2. Significantly greater removal was noted when the removal was based on total oestrogenic activity using a yeast oestrogen screen (YES) assay. These data indicated that a dose of less than 200 mJ/cm2 completely removed oestrogenic activity in lab water. Values for natural waters were slightly higher. A steady state model was developed to determine EDC destruction efficiency in waters of differing quality. The model effectively predicted destruction in water, where concentrations of all scavenging species were known. Based on these results it was concluded than complete destruction of oestrogenic activity was possible under practical advanced oxidation conditions for a variety of water qualities.

scholarly journals Rapid and ultrasensitive detection of endocrine disrupting chemicals using a nanosensor-enabled cell-based platform

2017 ◽  
Vol 53 (62) ◽  
pp. 8794-8797 ◽  
Author(s):  
Ngoc D. B. Le ◽  
Xian Wang ◽  
Yingying Geng ◽  
Rui Tang ◽  
Gulen Yesilbag Tonga ◽  
...  
Keyword(s):  
High Throughput ◽  
Endocrine Disrupting Chemicals ◽  
Ultrasensitive Detection ◽  
Highly Sensitive ◽  
Endocrine Disrupting

A high-throughput cell-based nanosensor provides highly sensitive identification of estrogenic agents.

scholarly journals Single-Cell Distribution Analysis of AR Levels by High-Throughput Microscopy in Cell Models: Application for Testing Endocrine-Disrupting Chemicals

2020 ◽  
Vol 25 (7) ◽  
pp. 684-694
Author(s):  
Fabio Stossi ◽  
Ragini M. Mistry ◽  
Pankaj K. Singh ◽  
Hannah L. Johnson ◽  
Maureen G. Mancini ◽  
...  
Keyword(s):  
Single Cell ◽  
Cell Lines ◽  
High Throughput ◽  
Endocrine Disrupting Chemicals ◽  
Male Reproduction ◽  
Control Analysis ◽  
Distribution Analysis ◽  
Cell Distribution ◽  
Protein Levels ◽  
Endocrine Disrupting

Cell-to-cell variation of protein expression in genetically homogeneous populations is a common biological trait often neglected during analysis of high-throughput (HT) screens and is rarely used as a metric to characterize chemicals. We have captured single-cell distributions of androgen receptor (AR) nuclear levels after perturbations as a means to evaluate assay reproducibility and characterize a small subset of chemicals. AR, a member of the nuclear receptor family of transcription factors, is the central regulator of male reproduction and is involved in many pathophysiological processes. AR protein levels and nuclear localization often increase following ligand binding, with dihydrotestosterone (DHT) being the natural agonist. HT AR immunofluorescence imaging was used in multiple cell lines to define single-cell nuclear values extracted from thousands of cells per condition treated with DHT or DMSO (control). Analysis of numerous biological replicates led to a quality control metric that takes into account the distribution of single-cell data, and how it changes upon treatments. Dose–response experiments across several cell lines showed a large range of sensitivity to DHT, prompting us to treat selected cell lines with 45 Environmental Protection Agency (EPA)-provided chemicals that include many endocrine-disrupting chemicals (EDCs); data from six of the compounds were then integrated with orthogonal assays. Our comprehensive results indicate that quantitative single-cell distribution analysis of AR protein levels is a valid method to detect the potential androgenic and antiandrogenic actions of environmentally relevant chemicals in a sensitive and reproducible manner.

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