Menu
×
West Ashley Library
9 a.m. - 6 p.m.
Phone: (843) 766-6635
Folly Beach Library
9 a.m. - 1 p.m.
Phone: (843) 588-2001
Edgar Allan Poe/Sullivan's Island Library
Closed for renovations
Phone: (843) 883-3914
Wando Mount Pleasant Library
9 a.m. - 6 p.m.
Phone: (843) 805-6888
Village Library
9 a.m. - 6 p.m.
Phone: (843) 884-9741
St. Paul's/Hollywood Library
9 a.m. - 6 p.m.
Phone: (843) 889-3300
Otranto Road Library
9 a.m. - 6 p.m.
Phone: (843) 572-4094
Mt. Pleasant Library
9 a.m. – 6 p.m.
Phone: (843) 849-6161
McClellanville Library
9 a.m. - 1 p.m.
Phone: (843) 887-3699
Keith Summey North Charleston Library
9 a.m. – 6 p.m.
Phone: (843) 744-2489
John's Island Library
9 a.m. - 6 p.m.
Phone: (843) 559-1945
Hurd/St. Andrews Library
9 a.m. - 6 p.m.
Phone: (843) 766-2546
Miss Jane's Building (Edisto Library Temporary Location)
9 a.m. – 3 p.m.
Phone: (843) 869-2355
Dorchester Road Library
9 a.m. - 6 p.m.
Phone: (843) 552-6466
John L. Dart Library
9 a.m. - 6 p.m.
Phone: (843) 722-7550
Baxter-Patrick James Island
9 a.m. - 6 p.m.
Phone: (843) 795-6679
Main Library
9 a.m. - 6 p.m.
Phone: (843) 805-6930
Bees Ferry West Ashley Library
9 a.m. - 6 p.m.
Phone: (843) 805-6892
Mobile Library
9 a.m. - 5 p.m.
Phone: (843) 805-6909
Today's Hours
West Ashley Library
9 a.m. - 6 p.m.
Phone: (843) 766-6635
Folly Beach Library
9 a.m. - 1 p.m.
Phone: (843) 588-2001
Edgar Allan Poe/Sullivan's Island Library
Closed for renovations
Phone: (843) 883-3914
Wando Mount Pleasant Library
9 a.m. - 6 p.m.
Phone: (843) 805-6888
Village Library
9 a.m. - 6 p.m.
Phone: (843) 884-9741
St. Paul's/Hollywood Library
9 a.m. - 6 p.m.
Phone: (843) 889-3300
Otranto Road Library
9 a.m. - 6 p.m.
Phone: (843) 572-4094
Mt. Pleasant Library
9 a.m. – 6 p.m.
Phone: (843) 849-6161
McClellanville Library
9 a.m. - 1 p.m.
Phone: (843) 887-3699
Keith Summey North Charleston Library
9 a.m. – 6 p.m.
Phone: (843) 744-2489
John's Island Library
9 a.m. - 6 p.m.
Phone: (843) 559-1945
Hurd/St. Andrews Library
9 a.m. - 6 p.m.
Phone: (843) 766-2546
Miss Jane's Building (Edisto Library Temporary Location)
9 a.m. – 3 p.m.
Phone: (843) 869-2355
Dorchester Road Library
9 a.m. - 6 p.m.
Phone: (843) 552-6466
John L. Dart Library
9 a.m. - 6 p.m.
Phone: (843) 722-7550
Baxter-Patrick James Island
9 a.m. - 6 p.m.
Phone: (843) 795-6679
Main Library
9 a.m. - 6 p.m.
Phone: (843) 805-6930
Bees Ferry West Ashley Library
9 a.m. - 6 p.m.
Phone: (843) 805-6892
Mobile Library
9 a.m. - 5 p.m.
Phone: (843) 805-6909
Patron Login
menu
Item request has been placed!
×
Item request cannot be made.
×
![loading](/sites/all/modules/hf_eds/images/loading.gif)
In Vivo Tissue Distribution of Polystyrene or Mixed Polymer Microspheres and Metabolomic Analysis after Oral Exposure in Mice.
Item request has been placed!
×
Item request cannot be made.
×
![loading](/sites/all/modules/hf_eds/images/loading.gif)
- Author(s): Garcia, Marcus M.; Romero, Aaron S.; Merkley, Seth D.; Meyer-Hagen, Jewel L.; Forbes, Charles; El Hayek, Eliane; Sciezka, David P.; Templeton, Rachel; Gonzalez-Estrella, Jorge; Yan Jin; Haiwei Gu; Benavidez, Angelica; Hunter, Russell P.; Lucas, Selita; Herbert, Guy; Kyle Joohyung Kim; Julia Yue Cui; Gullapalli, Rama R.; In, Julie G.; Campen, Matthew J.
- Source:
Environmental Health Perspectives. Apr2024, Vol. 132 Issue 4, p047005-1-047005-14. 14p. - Source:
- Additional Information
- Subject Terms: BRAIN metabolism; ENVIRONMENTAL health; POLYMERS; DIGESTION; RESEARCH funding; GUT microbiome; BLOOD-brain barrier; PREFRONTAL cortex; ETHANOL; LUNGS; IN vivo studies; DESCRIPTIVE statistics; COLON (Anatomy); MICE; GASTRIC mucosa; METABOLITES; POLLUTION; ENVIRONMENTAL exposure; ANIMAL experimentation; METABOLISM; WATER; SPECTRUM analysis; LIQUID chromatography; MICROPLASTICS; METABOLOMICS; BIOACCUMULATION; LIVER; POLYETHYLENE; DATA analysis software; KIDNEYS
- Abstract: BACKGROUND: Global plastic use has consistently increased over the past century with several different types of plastics now being produced. Much of these plastics end up in oceans or landfills leading to a substantial accumulation of plastics in the environment. Plastic debris slowly degrades into microplastics (MPs) that can ultimately be inhaled or ingested by both animals and humans. A growing body of evidence indicates that MPs can cross the gut barrier and enter into the lymphatic and systemic circulation leading to accumulation in tissues such as the lungs, liver, kidney, and brain. The impacts of mixed MPs exposure on tissue function through metabolism remains largely unexplored. OBJECTIVES: This study aims to investigate the impacts of polymer microspheres on tissue metabolism in mice by assessing the microspheres ability to translocate across the gut barrier and enter into systemic circulation. Specifically, we wanted to examine microsphere accumulation in different organ systems, identify concentration-dependent metabolic changes, and evaluate the effects of mixed microsphere exposures on health outcomes. METHODS: To investigate the impact of ingested microspheres on target metabolic pathways, mice were exposed to either polystyrene (5 μm) microspheres or a mixture of polymer microspheres consisting of polystyrene (5 μm), polyethylene (1–4 μm), and the biodegradability and biocompatible plastic, poly-(lactic-co-glycolic acid) (5 μm). Exposures were performed twice a week for 4 weeks at a concentration of either 0, 2, or 4 mg/week via oral gastric gavage. Tissues were collected to examine microsphere ingress and changes in metabolites. RESULTS: In mice that ingested microspheres, we detected polystyrene microspheres in distant tissues including the brain, liver, and kidney. Additionally, we report on the metabolic differences that occurred in the colon, liver, and brain, which showed differential responses that were dependent on concentration and type of microsphere exposure. DISCUSSION: This study uses a mouse model to provide critical insight into the potential health implications of the pervasive issue of plastic pollution. These findings demonstrate that orally consumed polystyrene or mixed polymer microspheres can accumulate in tissues such as the brain, liver, and kidney. Furthermore, this study highlights concentration-dependent and polymer type-specific metabolic changes in the colon, liver, and brain after plastic microsphere exposure. These results underline the mobility within and between biological tissues of MPs after exposure and emphasize the importance of understanding their metabolic impact [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Environmental Health Perspectives is the property of National Institute of Environmental Health Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Subject Terms:
Contact CCPL
Copyright 2022 Charleston County Public Library Powered By EBSCO Stacks 3.3.0 [350.3] | Staff Login
No Comments.