1
|
Lopes-Rocha L, Hernandez C, Gonçalves V, Pinho T, Tiritan ME. Analytical Methods for Determination of BPA Released from Dental Resin Composites and Related Materials: A Systematic Review. Crit Rev Anal Chem 2022; 54:653-668. [PMID: 35776702 DOI: 10.1080/10408347.2022.2093097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Knowing the impacts of bisphenol A (BPA) on human health, this systematic review aimed to gather the analytical methods for the quantification of BPA release of BPA in dental materials in in vitro and in vivo (biological fluids) studies. A brief critical discussion of the impacts of BPA on human health and the possible association with BPA in dental materials was also presented. The research was carried out by three independent researchers, (according to PRISMA guidelines) in PUBMED and SCOPUS databases, by searching for specific keywords and articles published between January 2011 and February 2022. Seventeen articles met the eligibility criteria and were included in this systematic review: 10 in vitro and 7 in vivo. In in vitro studies, the highest amounts of BPA released were from flowable to conventional resins, followed by resin-modified glass ionomer. In contrast, the smallest amount was released from "BPA-free" composites and CAD-CAM blocks. Regarding in vivo studies, a higher concentration of BPA were found in saliva than urine or blood. The best analytical method for trace quantifying BPA is LC-MS/MS (Liquid Chromatography with Tandem Mass Spectrometry) due to its selectivity, low quantification limits, and the unequivocal identification. However, further studies are required to develop faster and more sensitive methods, in order to obtain more reliable results.
Collapse
Affiliation(s)
- Lígia Lopes-Rocha
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
| | - Clara Hernandez
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
| | - Virgínia Gonçalves
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
- TOXRUN-Toxicology Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
| | - Teresa Pinho
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
- IBMC-Institute of Molecular and Cellular Biology, i3S-Institute of Innovation and Research in Health, Oporto University, Porto, Portugal
| | - Maria Elizabeth Tiritan
- TOXRUN-Toxicology Research Unit, University Institute of Health Sciences (IUCS), CESPU, Gandra, Portugal
- Faculty of Pharmacy, University of Porto (FFUP), Portugal. Interdisciplinary Center of Marine and Environmental Research (CIIMAR), University of Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Matosinhos, Portugal
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia da, Universidade do Porto, Porto, Portugal
| |
Collapse
|
2
|
Kotsanos N, Wong F. Restoration of Carious Hard Dental Tissues. Pediatr Dent 2022. [DOI: 10.1007/978-3-030-78003-6_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
3
|
Lopes-Rocha L, Ribeiro-Gonçalves L, Henriques B, Özcan M, Tiritan ME, Souza JCM. An integrative review on the toxicity of Bisphenol A (BPA) released from resin composites used in dentistry. J Biomed Mater Res B Appl Biomater 2021; 109:1942-1952. [PMID: 33834604 DOI: 10.1002/jbm.b.34843] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 03/02/2021] [Accepted: 03/28/2021] [Indexed: 11/11/2022]
Abstract
The main aim of this study was to perform an integrative review on the release of bisphenol A (BPA) from resin-matrix composites and potential toxic effects. A bibliographic search was performed on the PubMed platform using the following keywords: "Bisphenol A" OR "BPA" AND "resin composite" OR "composite resin" AND "toxicity" OR "cytotoxicity" OR "release". Inclusion criteria involved in vitro and in vivo studies on the release and toxicity of BPA. Results highlighted the release of BPA from resin-matrix composites due to insufficient polymerization and/or degradation of the polymeric matrix. BPA is part of the organic matrix of resin-matrix composites and may be hydrolysed in human saliva, although studies report that low doses might not be detected by traditional chemical analysis. Studies exposing zebrafish embryos to different concentrations of Bis-GMA, showed 55% mortality at 10 μM Bis-GMA while 30% mortality was recorded at 1 μM Bis-GMA. In patients, a BPA concentration of around 2.09 × 10-2 μg/ml was found in the saliva after placement of lingual orthodontic retainers with resin-matrix composites. Also, the BPA molecule can be swallowed and absorbed by the oral/gastrointestinal mucosa, which might result in systemic toxicity. The degradation of resin-matrix composites and release of BPA in oral environment are dependent on the organic matrix content and on the polymerization method. A increased release of BPA can lead to the absorption into oral and gastrointestinal mucosa with high risks of local and systemic toxicity.
Collapse
Affiliation(s)
- Lígia Lopes-Rocha
- Department of Dental Sciences, University Institute of Health Sciences (IUCS), CESPU, Gandra, PRD, Portugal.,Institute for Research and Advanced Training in Health Sciences and Technologies (IINFACTS), CESPU, Gandra PRD, Portugal
| | - Lara Ribeiro-Gonçalves
- Department of Dental Sciences, University Institute of Health Sciences (IUCS), CESPU, Gandra, PRD, Portugal
| | - Bruno Henriques
- Ceramic and Composite Materials Research Group (CERMAT), Dept. of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianópolis, Brazil.,Centre for Microelectromechanical Systems (CMEMS-UMINHO), University of Minho, Campus Azurém, Guimarães, Braga, Portugal
| | - Mutlu Özcan
- Division of Dental Biomaterials, Clinic for Reconstructive Dentistry, Center of Dental Medicine, University of Zürich, Zürich, Switzerland
| | - Maria Elizabeth Tiritan
- Institute for Research and Advanced Training in Health Sciences and Technologies (IINFACTS), CESPU, Gandra PRD, Portugal.,Laboratory of Organic and Pharmaceutical Chemistry (LQOF), Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Júlio C M Souza
- Department of Dental Sciences, University Institute of Health Sciences (IUCS), CESPU, Gandra, PRD, Portugal.,Centre for Microelectromechanical Systems (CMEMS-UMINHO), University of Minho, Campus Azurém, Guimarães, Braga, Portugal
| |
Collapse
|
4
|
Once Resin Composites and Dental Sealants Release Bisphenol-A, How Might This Affect Our Clinical Management?-A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16091627. [PMID: 31075949 PMCID: PMC6539392 DOI: 10.3390/ijerph16091627] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/22/2019] [Accepted: 05/03/2019] [Indexed: 12/12/2022]
Abstract
(1) Background: Bisphenol A (BPA) based dental resins are commonly used in preventive and reparative dentistry. Since some monomers may remain unpolymerized in the application of dental resin, they dissolve in the saliva. (2) Methods: The literature search was carried out in Pubmed, Cochrane and Embase databases. Randomized controlled trials, cohort studies and case-control studies that evaluated BPA levels in human urine, saliva and/or blood were included. (3) Results: The initial search had 5111 results. A total of 20 studies were included in the systematic review. Most studies showed an increase of the levels of bisphenol A 1 h after treatments with composite resins and dental sealants. One week after treatments the levels were decreased. (4) Conclusions: Some clinical precautions should be taken to decrease the release of BPA, namely the use of rubber dam, the immediate polishing of all resins used, or the use of glycerin gel to avoid non-polymerization of the last resin layer, and mouthwash after treatment. Another preventive measure in addition to the above-mentioned is the use of the smallest possible number of restorations or sealants, a maximum of four per appointment. These measures are even more important in children, adolescents and pregnant women.
Collapse
|
5
|
Emeny RT, Korrick SA, Li Z, Nadeau K, Madan J, Jackson B, Baker E, Karagas MR. Prenatal exposure to mercury in relation to infant infections and respiratory symptoms in the New Hampshire Birth Cohort Study. ENVIRONMENTAL RESEARCH 2019; 171:523-529. [PMID: 30743244 PMCID: PMC6561090 DOI: 10.1016/j.envres.2019.01.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 01/08/2019] [Accepted: 01/10/2019] [Indexed: 05/21/2023]
Abstract
BACKGROUND Mechanistic studies support the potential for mercury (Hg) to alter immunity, including via in utero exposure. As yet, there are few prospective studies of in utero Hg exposure and subsequent immune-related outcomes, especially in infancy. OBJECTIVES We investigated the association of biomarkers of prenatal Hg exposure and maternal silver-mercury dental amalgams with the occurrence of infant allergy, respiratory infection, and respiratory symptoms in the first year of life. METHODS The New Hampshire Birth Cohort Study (NHBCS) ascertained information on infant allergies, infections and symptoms through telephone interviews at 4, 8 and 12 months postpartum and measured total Hg in maternal toenails collected at ~28-30 weeks gestation. Information on maternal fish consumption and presence of dental amalgams was obtained from a questionnaire administered at study enrollment at 24-28 weeks. A total of 1321 NHBCS mother-infant pairs had at least one Hg exposure measure (toenail Hg or information on dental amalgams) and information on dietary fish intake. Generalized linear models and generalized estimating equation models with Poisson regression adjusted for potential confounders (maternal age, level of education, parity, smoking, alternative Healthy Eating Index-2010, infant sex, gestational age, feeding mode, and day care attendance) were used to assess the association between infant outcomes and prenatal toenail Hg levels. We subsetted this analysis on mothers who consumed fish (n = 706) as a measure of in utero methylmercury (MeHg) exposure. Associations between infant outcomes and dental amalgams as a measure of in utero inorganic Hg exposure were assessed among mothers who did not consume fish (n = 218). RESULTS Among women who ate fish during pregnancy, higher maternal toenail Hg concentrations were associated with an increased risk of lower respiratory infections and respiratory symptoms requiring a doctor visit among infants age 9-12 months (relative risk (RR) 1.4 (95% CI: 1.1, 1.9) and 1.2 (95% CI: 1.0, 1.4) respectively), whereas a reduced risk of lower respiratory infections was observed among infants 0-4 months of age (RR = 0.7 (95% CI: 0.5, 1.0). We found little to no evidence of associations of toenail Hg with upper respiratory infections, allergy or eczema at any age to one year. Among infants of mothers who did not consume fish, we found an elevated risk of upper respiratory infections requiring a doctor visit in relation to having dental amalgams during pregnancy (RR = 1.5 (95% CI: 1.1, 2.1)). Overall, weaker associations were observed with lower respiratory infections, respiratory symptoms, and medically confirmed allergies, and there was no association with eczema. CONCLUSIONS Our analyses of a US birth cohort, along with prior mechanistic work, raise the possibility that gestational Hg exposure through fish/seafood consumption and dental amalgams may alter respiratory infections and respiratory symptoms in infants.
Collapse
Affiliation(s)
- Rebecca T Emeny
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA; The Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - Susan A Korrick
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Zhigang Li
- Children's Environmental Health and Disease Prevention Research Center at Dartmouth, Hanover, NH, USA; Department of Biostatistics, College of Public Health and Health Professions & College of Medicine, University of Florida, Gainesville, FL, USA
| | - Kari Nadeau
- Division of Immunology and Allergy, Stanford Medical School and Lucile Packard Children's Hospital, Stanford, CA, USA
| | - Juliette Madan
- Division of Neonatology, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA
| | - Brian Jackson
- Trace Element Analysis Lab, Dartmouth College, Hanover, NH, USA
| | - Emily Baker
- Department of Obstetrics and Gynecology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - Margaret R Karagas
- Children's Environmental Health and Disease Prevention Research Center at Dartmouth, Hanover, NH, USA; Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA.
| |
Collapse
|
6
|
Song H, Park J, Bui PTC, Choi K, Gye MC, Hong YC, Kim JH, Lee YJ. Bisphenol A induces COX-2 through the mitogen-activated protein kinase pathway and is associated with levels of inflammation-related markers in elderly populations. ENVIRONMENTAL RESEARCH 2017; 158:490-498. [PMID: 28709031 DOI: 10.1016/j.envres.2017.07.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 06/30/2017] [Accepted: 07/03/2017] [Indexed: 05/20/2023]
Abstract
Bisphenol A (BPA) is a well-known endocrine-disrupting chemical, and it is one of the highest volume chemicals produced worldwide. Even though several in vivo and in vitro studies showed positive associations of BPA exposure with pro-inflammatory cytokines such as tumor necrosis factor-α and interleukin (IL)-6, the mechanism by which BPA induces inflammation is unclear. We investigated the mechanism by which BPA induces inflammation (expression of inflammation-related genes, changes in oxidative stress, and cell proliferation and migration) and evaluated the effect of BPA exposure on inflammation-related markers in epidemiologic studies using repeat urine and serum samples from elderly subjects. BPA induced COX-2 expression via nuclear translocation of NF-κB and activation of mitogen-activated protein kinase (MAPK) by phosphorylation of ERK1/2 and enhanced the migration of lung cancer A549 and breast cancer MDAMB-231 cells. In two epidemiologic studies, we detected associations of BPA with six inflammation-related markers (WBC, CRP, IL-10, ALT, AST, and γ-GTP levels). Our findings probably suggest that BPA exposure induces inflammation and exacerbates tumorigenesis.
Collapse
Affiliation(s)
- Heewon Song
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Kwangjin-gu, Seoul 05006, Republic of Korea
| | - Joonwoo Park
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Kwangjin-gu, Seoul 05006, Republic of Korea
| | - Phuong T C Bui
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Kwangjin-gu, Seoul 05006, Republic of Korea
| | - KeunOh Choi
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Kwangjin-gu, Seoul 05006, Republic of Korea
| | - Myung Chan Gye
- Department of Life Science, Hanyang University, Seoul 04763, Republic of Korea
| | - Yun-Chul Hong
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 110-799, Republic of Korea
| | - Jin Hee Kim
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Kwangjin-gu, Seoul 05006, Republic of Korea.
| | - Young Joo Lee
- Department of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Kwangjin-gu, Seoul 05006, Republic of Korea.
| |
Collapse
|
7
|
Dursun E, Fron-Chabouis H, Attal JP, Raskin A. Bisphenol A Release: Survey of the Composition of Dental Composite Resins. Open Dent J 2016; 10:446-453. [PMID: 27708726 PMCID: PMC5039892 DOI: 10.2174/1874210601610010446] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/15/2016] [Accepted: 07/27/2016] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Bisphenol A (BPA) is an endocrine disruptor with potential toxicity. Composite resins may not contain pure BPA, but its derivatives are widely used. Several studies found doses of BPA or its derivatives in saliva or urine of patients after composite resin placement. OBJECTIVE The aims of this study were to establish an exhaustive list of composite resins marketed in Europe and their composition, and to assess the extent of BPA derivatives used. METHODS A research on manufacturers' websites was performed to reference all composite resins marketed in Europe, then their composition was determined from both material safety data sheets and a standardized questionnaire sent to manufacturers. Manufacturers had to indicate whether their product contained the monomers listed, add other monomers if necessary, or indicate "not disclosed". RESULTS 160 composite resins were identified from 31 manufacturers and 23 manufacturers (74.2%) responded to the survey. From the survey and websites, the composition of 130 composite resins (81.2%) was: 112 (86.2%) based on BPA derivatives, 97 (74.7%) on bis-GMA, 17 (13.1%) without monomer derived from BPA (UDMA, sometimes with TEGDMA) and 6 (4.6%) with UDMA (only); 1 (0.8%) did not contain a BPA derivative or UDMA or TEGDMA. Pure BPA was never reported. CONCLUSION This work has established a list of 18 composite resins that contain no BPA derivative. Manufacturers should be required to report the exact composition of their products as it often remains unclear or incomplete.
Collapse
Affiliation(s)
- Elisabeth Dursun
- Unité de Recherche en Biomatériaux, Innovations et Interfaces - EA 4462, Faculté de Chirurgie Dentaire, Université Paris Descartes, Paris, Groupe Hospitalier Mondor-Chenevier, Créteil, France
| | - Hélène Fron-Chabouis
- Unité de Recherche en Biomatériaux, Innovations et Interfaces - EA 4462, Faculté de Chirurgie Dentaire, Université Paris Descartes, Paris, Hôpital Charles Foix, Ivry-sur-Seine, France
| | - Jean-Pierre Attal
- Unité de Recherche en Biomatériaux, Innovations et Interfaces - EA 4462, Faculté de Chirurgie Dentaire, Université Paris Descartes, Paris, Hôpital Charles Foix, Ivry-sur-Seine, France
| | - Anne Raskin
- UMR 7268 ADES, EFS, CNRS Faculté d'Odontologie, Université d'Aix-Marseille, Marseille, Pôle d'Odontologie, UF des soins spécifiques, APHM, Hôpital de la Timone, Marseille, France
| |
Collapse
|
8
|
Maserejian NN, Trachtenberg FL, Wheaton OB, Calafat AM, Ranganathan G, Kim HY, Hauser R. Changes in urinary bisphenol A concentrations associated with placement of dental composite restorations in children and adolescents. J Am Dent Assoc 2016; 147:620-30. [PMID: 27083778 PMCID: PMC4967008 DOI: 10.1016/j.adaj.2016.02.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 02/08/2016] [Accepted: 02/13/2016] [Indexed: 11/24/2022]
Abstract
BACKGROUND Bisphenol A-glycidyl methacrylate (bis-GMA)-based dental composite restorations may release bisphenol A (BPA). The authors assessed changes in urinary BPA concentrations over a 6-month follow-up period in children and adolescents who received bis-GMA-based restorations. METHODS The authors collected data from 91 study participants aged 3 to 17 years who needed composite restorations. Participants provided urine samples and information on BPA-related exposures before and at approximately 1 day, 14 days, and 6 months after treatment. The authors used multivariable linear regression models to test associations between the number of surface restorations placed and the changes in urinary BPA concentrations. RESULTS Participants had a mean (standard deviation [SD]) of 1.4 (1.0) for surfaces restored with composite at the first treatment visit and 2.3 (1.6) for surfaces restored during the entire study period. Mean (SD) change in urinary BPA concentrations between pretreatment and day 1 was 1.71 (9.94) nanograms per milliliter overall and 0.87 (5.98) after excluding 1 participant who had 8 surfaces restored at the visit. Overall, the authors observed an association between a greater number of composite surface restorations placed and higher urinary BPA concentrations in the 1-day sample (posterior-occlusal exponentiated coefficients [e(β)] = 1.47; 95% confidence interval [CI], 1.18-1.83; P < .001), but the association was attenuated after the authors restricted the sample to the 88 participants who had up to 4 restorations (e(β) = 1.19; 95% CI, 0.86-1.64), and they did not observe any association using 14-day (e(β) = 0.94; 95% CI, 0.75-1.18) or 6-month (e(β) = 0.88; 95% CI, 0.74-1.04) samples. CONCLUSIONS Placement of bis-GMA-based restorations in children and adolescents may produce transient increases in urinary BPA concentrations that are no longer detectable in urine samples taken approximately 14 days or 6 months after treatment. After placement of a few restorations, increases in urinary BPA concentrations may not be detectable, owing to a high level of variation in background BPA exposure. PRACTICAL IMPLICATIONS These results suggest that leaching of BPA from newly placed composite restorations ceases to be detectable in urine within 2 weeks after restoration placement. The potential human health impact of such short-term exposure remains uncertain.
Collapse
|
9
|
Kramer AG, Vuthiganon J, Lassiter CS. Bis-GMA affects craniofacial development in zebrafish embryos (Danio rerio). ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 43:159-165. [PMID: 26994444 DOI: 10.1016/j.etap.2016.02.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/23/2016] [Accepted: 02/24/2016] [Indexed: 06/05/2023]
Abstract
Estrogen is a steroid hormone that is vital in vertebrate development and plays a role in a variety of developmental processes including cartilage and craniofacial formation. The effects of estrogen can be mimicked by other compounds found in the environment known as xenoestrogens. Bisphenol-A (BPA) is a known xenoestrogen and is combined with glycidyl methacrylate to make Bisphenol A glycidyl methacrylate (Bis-GMA), a major component in dental resin based composites (RBCs). Bis-GMA based RBCs can release their components into the saliva and bloodstream. Exposure to 1μM and 10μM Bis-GMA in Danio rerio embryos results in increased mortality of approximately 30% and 45% respectively. Changes to gross morphology, specifically craniofacial abnormalities, were seen at concentrations as low as 10nM. While the molecular pathways of Bis-GMA effects have not been studied extensively, more is known about one of the components, BPA. Further research of Bis-GMA could lead to a better understanding of xenoestrogenic activity resulting in improved public and environmental health.
Collapse
Affiliation(s)
- Alexander G Kramer
- Department of Biology, Roanoke College, 221 College Lane, Salem VA 24153, USA
| | - Jompobe Vuthiganon
- Department of Oral Rehabilitation, College of Dental Medicine, Medical University of South Carolina, 173 Ashley Avenue, Charleston SC 29425, USA
| | | |
Collapse
|
10
|
Ohlstein JF, Strong AL, McLachlan JA, Gimble JM, Burow ME, Bunnell BA. Bisphenol A enhances adipogenic differentiation of human adipose stromal/stem cells. J Mol Endocrinol 2014; 53:345-53. [PMID: 25143472 PMCID: PMC4757902 DOI: 10.1530/jme-14-0052] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Exposure of humans to the endocrine disrupter bisphenol A (BPA) has been associated with increased weight and obesity. However, the mechanism(s) by which BPA increases adipose tissue in humans remains to be determined. The goal of this study was to determine the effects of BPA on adipogenesis of cultured human adipose stromal/stem cells (ASCs), precursors to mature adipocytes. ASCs from three donors were cultured for either 14 or 21 days in adipogenic differentiation media containing increasing concentrations of BPA (100 pM-10 μM). The extent of adipogenic differentiation in the ASCs was assessed by staining with Oil Red O to visualize adipogenic differentiation and then quantified by extraction and optical density measurement of the retained dye. BPA significantly enhanced adipogenesis at a concentration of 1 μM after 21 days of culture. Additionally, we found that BPA increased transcription of the estrogen receptor (ER (ESR1)) and that treatment with the ER antagonist ICI 182 780, blocked the effects of BPA, indicating that BPA may act via an ER-mediated pathway. The results of molecular analyses indicated that the expression of the adipogenesis-associated genes dual leucine zipper-bearing kinase (DLK (MAP3K12)), IGF1, CCAAT/enhancer-binding protein alpha (C/EBPα (CEBPA)), peroxisome proliferator-activated receptor gamma (PPARγ (PPARG)), and lipoprotein lipase (LPL) was temporally accelerated and increased by BPA. In summary, these results indicate that BPA significantly enhances adipogenesis in ASCs through an ER-mediated pathway at physiologically relevant concentrations.
Collapse
Affiliation(s)
- Jason F Ohlstein
- Center for Stem Cell Research and Regenerative MedicineTulane University School of Medicine, 1430 Tulane Avenue, SL-99, New Orleans, Louisiana 70112, USASection of Hematology and Medical OncologyDepartment of Medicine, Tulane University Health Sciences Center, New Orleans, Louisiana 70112, USADepartment of PharmacologyTulane University School of Medicine, New Orleans, Louisiana 70112, USA
| | - Amy L Strong
- Center for Stem Cell Research and Regenerative MedicineTulane University School of Medicine, 1430 Tulane Avenue, SL-99, New Orleans, Louisiana 70112, USASection of Hematology and Medical OncologyDepartment of Medicine, Tulane University Health Sciences Center, New Orleans, Louisiana 70112, USADepartment of PharmacologyTulane University School of Medicine, New Orleans, Louisiana 70112, USA
| | - John A McLachlan
- Center for Stem Cell Research and Regenerative MedicineTulane University School of Medicine, 1430 Tulane Avenue, SL-99, New Orleans, Louisiana 70112, USASection of Hematology and Medical OncologyDepartment of Medicine, Tulane University Health Sciences Center, New Orleans, Louisiana 70112, USADepartment of PharmacologyTulane University School of Medicine, New Orleans, Louisiana 70112, USA
| | - Jeffrey M Gimble
- Center for Stem Cell Research and Regenerative MedicineTulane University School of Medicine, 1430 Tulane Avenue, SL-99, New Orleans, Louisiana 70112, USASection of Hematology and Medical OncologyDepartment of Medicine, Tulane University Health Sciences Center, New Orleans, Louisiana 70112, USADepartment of PharmacologyTulane University School of Medicine, New Orleans, Louisiana 70112, USA
| | - Matthew E Burow
- Center for Stem Cell Research and Regenerative MedicineTulane University School of Medicine, 1430 Tulane Avenue, SL-99, New Orleans, Louisiana 70112, USASection of Hematology and Medical OncologyDepartment of Medicine, Tulane University Health Sciences Center, New Orleans, Louisiana 70112, USADepartment of PharmacologyTulane University School of Medicine, New Orleans, Louisiana 70112, USA
| | - Bruce A Bunnell
- Center for Stem Cell Research and Regenerative MedicineTulane University School of Medicine, 1430 Tulane Avenue, SL-99, New Orleans, Louisiana 70112, USASection of Hematology and Medical OncologyDepartment of Medicine, Tulane University Health Sciences Center, New Orleans, Louisiana 70112, USADepartment of PharmacologyTulane University School of Medicine, New Orleans, Louisiana 70112, USA Center for Stem Cell Research and Regenerative MedicineTulane University School of Medicine, 1430 Tulane Avenue, SL-99, New Orleans, Louisiana 70112, USASection of Hematology and Medical OncologyDepartment of Medicine, Tulane University Health Sciences Center, New Orleans, Louisiana 70112, USADepartment of PharmacologyTulane University School of Medicine, New Orleans, Louisiana 70112, USA
| |
Collapse
|
11
|
Possible Association Between Dental Sealants and Urinary Bisphenol A Levels in Children Warrants Additional Biomonitoring and Safety Research. J Evid Based Dent Pract 2014; 14:200-2. [DOI: 10.1016/j.jebdp.2014.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|