Detection and analysis of endogenous polar volatile organic compounds (PVOCs) in urine for human exposome research
Background: The human exposome, defined as '...everything that is not the genome', comprises all chemicals in the body interacting with life processes. The exposome drives genes x environment (GxE) interactions that can cause long-term latency and chronic diseases. The exposome constantly...
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Published in | Biomarkers Vol. 24; no. 3; pp. 240 - 248 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
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Taylor & Francis
03.04.2019
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Abstract | Background: The human exposome, defined as '...everything that is not the genome', comprises all chemicals in the body interacting with life processes. The exposome drives genes x environment (GxE) interactions that can cause long-term latency and chronic diseases. The exposome constantly changes in response to external exposures and internal metabolism. Different types of compounds are found in different biological media.
Objective: Measure polar volatile organic compounds (PVOCs) excreted in urine to document endogenous metabolites and exogenous compounds from environmental exposures.
Methods: Use headspace collection and sorbent tube thermal desorption coupled with bench-top gas chromatography-mass spectrometry (GC-MS) for targeted and non-targeted approaches. Identify and categorize PVOCs that may distinguish among healthy and affected individuals.
Results: Method is successfully demonstrated to tabulate a series of 28 PVOCs detected in human urine across 120 samples from 28 human subjects. Median concentrations range from below detect to 165 ng/mL. Certain PVOCs have potential health implications.
Conclusions: Headspace collection with sorbent tubes is an effective method for documenting PVOCs in urine that are otherwise difficult to measure. This methodology can provide probative information regarding biochemical processes and adverse outcome pathways (AOPs) for toxicity testing. |
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AbstractList | The human exposome, defined as '
', comprises all chemicals in the body interacting with life processes. The exposome drives genes x environment (GxE) interactions that can cause long-term latency and chronic diseases. The exposome constantly changes in response to external exposures and internal metabolism. Different types of compounds are found in different biological media.
Measure polar volatile organic compounds (PVOCs) excreted in urine to document endogenous metabolites and exogenous compounds from environmental exposures.
Use headspace collection and sorbent tube thermal desorption coupled with bench-top gas chromatography-mass spectrometry (GC-MS) for targeted and non-targeted approaches. Identify and categorize PVOCs that may distinguish among healthy and affected individuals.
Method is successfully demonstrated to tabulate a series of 28 PVOCs detected in human urine across 120 samples from 28 human subjects. Median concentrations range from below detect to 165 ng/mL. Certain PVOCs have potential health implications.
Headspace collection with sorbent tubes is an effective method for documenting PVOCs in urine that are otherwise difficult to measure. This methodology can provide probative information regarding biochemical processes and adverse outcome pathways (AOPs) for toxicity testing. Background: The human exposome, defined as '...everything that is not the genome', comprises all chemicals in the body interacting with life processes. The exposome drives genes x environment (GxE) interactions that can cause long-term latency and chronic diseases. The exposome constantly changes in response to external exposures and internal metabolism. Different types of compounds are found in different biological media. Objective: Measure polar volatile organic compounds (PVOCs) excreted in urine to document endogenous metabolites and exogenous compounds from environmental exposures. Methods: Use headspace collection and sorbent tube thermal desorption coupled with bench-top gas chromatography-mass spectrometry (GC-MS) for targeted and non-targeted approaches. Identify and categorize PVOCs that may distinguish among healthy and affected individuals. Results: Method is successfully demonstrated to tabulate a series of 28 PVOCs detected in human urine across 120 samples from 28 human subjects. Median concentrations range from below detect to 165 ng/mL. Certain PVOCs have potential health implications. Conclusions: Headspace collection with sorbent tubes is an effective method for documenting PVOCs in urine that are otherwise difficult to measure. This methodology can provide probative information regarding biochemical processes and adverse outcome pathways (AOPs) for toxicity testing. Background: The human exposome, defined as '…everything that is not the genome', comprises all chemicals in the body interacting with life processes. The exposome drives genes x environment (GxE) interactions that can cause long-term latency and chronic diseases. The exposome constantly changes in response to external exposures and internal metabolism. Different types of compounds are found in different biological media. Objective: Measure polar volatile organic compounds (PVOCs) excreted in urine to document endogenous metabolites and exogenous compounds from environmental exposures. Methods: Use headspace collection and sorbent tube thermal desorption coupled with bench-top gas chromatography-mass spectrometry (GC-MS) for targeted and non-targeted approaches. Identify and categorize PVOCs that may distinguish among healthy and affected individuals. Results: Method is successfully demonstrated to tabulate a series of 28 PVOCs detected in human urine across 120 samples from 28 human subjects. Median concentrations range from below detect to 165 ng/mL. Certain PVOCs have potential health implications. Conclusions: Headspace collection with sorbent tubes is an effective method for documenting PVOCs in urine that are otherwise difficult to measure. This methodology can provide probative information regarding biochemical processes and adverse outcome pathways (AOPs) for toxicity testing.Background: The human exposome, defined as '…everything that is not the genome', comprises all chemicals in the body interacting with life processes. The exposome drives genes x environment (GxE) interactions that can cause long-term latency and chronic diseases. The exposome constantly changes in response to external exposures and internal metabolism. Different types of compounds are found in different biological media. Objective: Measure polar volatile organic compounds (PVOCs) excreted in urine to document endogenous metabolites and exogenous compounds from environmental exposures. Methods: Use headspace collection and sorbent tube thermal desorption coupled with bench-top gas chromatography-mass spectrometry (GC-MS) for targeted and non-targeted approaches. Identify and categorize PVOCs that may distinguish among healthy and affected individuals. Results: Method is successfully demonstrated to tabulate a series of 28 PVOCs detected in human urine across 120 samples from 28 human subjects. Median concentrations range from below detect to 165 ng/mL. Certain PVOCs have potential health implications. Conclusions: Headspace collection with sorbent tubes is an effective method for documenting PVOCs in urine that are otherwise difficult to measure. This methodology can provide probative information regarding biochemical processes and adverse outcome pathways (AOPs) for toxicity testing. |
Author | Stiegel, Matthew A. Wallace, M. Ariel Geer O'Lenick, Cassandra R. Pleil, Joachim D. Sobus, Jon R. |
AuthorAffiliation | b U.S. Environmental Protection Agency, Exposure Methods and Measurements Division, NERL/ORD, Research Triangle Park, NC, USA a National Center for Atmospheric Research, Boulder, CO, USA c Duke University Medical Center, Durham, NC, USA |
AuthorAffiliation_xml | – name: b U.S. Environmental Protection Agency, Exposure Methods and Measurements Division, NERL/ORD, Research Triangle Park, NC, USA – name: a National Center for Atmospheric Research, Boulder, CO, USA – name: c Duke University Medical Center, Durham, NC, USA |
Author_xml | – sequence: 1 givenname: Cassandra R. surname: O'Lenick fullname: O'Lenick, Cassandra R. organization: National Center for Atmospheric Research – sequence: 2 givenname: Joachim D. surname: Pleil fullname: Pleil, Joachim D. email: pleil.joachim@epa.gov organization: U.S. Environmental Protection Agency, Exposure Methods and Measurements Division, NERL/ORD – sequence: 3 givenname: Matthew A. surname: Stiegel fullname: Stiegel, Matthew A. organization: Duke University Medical Center – sequence: 4 givenname: Jon R. surname: Sobus fullname: Sobus, Jon R. organization: U.S. Environmental Protection Agency, Exposure Methods and Measurements Division, NERL/ORD – sequence: 5 givenname: M. Ariel Geer surname: Wallace fullname: Wallace, M. Ariel Geer organization: U.S. Environmental Protection Agency, Exposure Methods and Measurements Division, NERL/ORD |
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Snippet | Background: The human exposome, defined as '...everything that is not the genome', comprises all chemicals in the body interacting with life processes. The... The human exposome, defined as ' ', comprises all chemicals in the body interacting with life processes. The exposome drives genes x environment (GxE)... Background: The human exposome, defined as '…everything that is not the genome', comprises all chemicals in the body interacting with life processes. The... |
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SubjectTerms | Adult adverse outcome pathways Biomarkers Environmental Exposure Environmental Monitoring Female Gas Chromatography-Mass Spectrometry gas chromatography/mass spectroscopy human exposome Humans Male Middle Aged non-targeted analysis urinary metabolites Volatile Organic Compounds - chemistry Volatile Organic Compounds - urine Young Adult |
Title | Detection and analysis of endogenous polar volatile organic compounds (PVOCs) in urine for human exposome research |
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