1
|
Hong S, Kang BS, Kim O, Won S, Kim HS, Wie JH, Shin JE, Choi SK, Jo YS, Kim YH, Yang M, Kang H, Lee DW, Park IY, Park JS, Ko HS. The associations between maternal and fetal exposure to endocrine-disrupting chemicals and asymmetric fetal growth restriction: a prospective cohort study. Front Public Health 2024; 12:1351786. [PMID: 38665245 PMCID: PMC11043493 DOI: 10.3389/fpubh.2024.1351786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
Recent evidence has revealed associations between endocrine-disrupting chemicals (EDCs) and placental insufficiency due to altered placental growth, syncytialization, and trophoblast invasion. However, no epidemiologic study has reported associations between exposure to EDCs and asymmetric fetal growth restriction (FGR) caused by placenta insufficiency. The aim of this study was to evaluate the association between EDC exposure and asymmetric FGR. This was a prospective cohort study including women admitted for delivery to the Maternal Fetal Center at Seoul St. Mary's Hospital between October 2021 and October 2022. Maternal urine and cord blood samples were collected, and the levels of bisphenol-A (BPA), monoethyl phthalates, and perfluorooctanoic acid in each specimen were analyzed. We investigated linear and non-linear associations between the levels of EDCs and fetal growth parameters, including the head circumference (HC)/abdominal circumference (AC) ratio as an asymmetric parameter. The levels of EDCs were compared between fetuses with and without asymmetric FGR. Of the EDCs, only the fetal levels of BPA showed a linear association with the HC/AC ratio after adjusting for confounding variables (β = 0.003, p < 0.05). When comparing the normal growth and asymmetric FGR groups, the asymmetric FGR group showed significantly higher maternal and fetal BPA levels compared to the normal growth group (maternal urine BPA, 3.99 μg/g creatinine vs. 1.71 μg/g creatinine [p < 0.05]; cord blood BPA, 1.96 μg/L vs. -0.86 μg/L [p < 0.05]). In conclusion, fetal exposure levels of BPA show linear associations with asymmetric fetal growth patterns. High maternal and fetal exposure to BPA might be associated with asymmetric FGR.
Collapse
Affiliation(s)
- Subeen Hong
- Department of Obstetrics and Gynecology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Byung Soo Kang
- Department of Obstetrics and Gynecology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Oyoung Kim
- Department of Obstetrics and Gynecology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sangeun Won
- Department of Obstetrics and Gynecology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyeon Soo Kim
- Department of Obstetrics and Gynecology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeong Ha Wie
- Department of Obstetrics and Gynecology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jae Eun Shin
- Department of Obstetrics and Gynecology, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sae Kyung Choi
- Department of Obstetrics and Gynecology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yun Sung Jo
- Department of Obstetrics and Gynecology, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yeon Hee Kim
- Department of Obstetrics and Gynecology, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Mihi Yang
- College of Pharmacy, Sookmyung Women’s University, Seoul, Republic of Korea
- Goodbeing Center Co. Ltd., Seoul, Republic of Korea
| | - Huiwon Kang
- College of Pharmacy, Sookmyung Women’s University, Seoul, Republic of Korea
- Goodbeing Center Co. Ltd., Seoul, Republic of Korea
| | - Dong-Wook Lee
- Department of Occupational & Environmental Medicine, Inha University Hospital, Inha University, Incheon, Republic of Korea
| | - In Yang Park
- Department of Obstetrics and Gynecology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Joong Shin Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyun Sun Ko
- Department of Obstetrics and Gynecology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| |
Collapse
|
2
|
Abstract
AIM The aim of the present study was to undertake a systematic review of the available evidence on the release of bisphenol-A (BPA) from thermoplastic materials used in the fabrication of clear aligners (CA). METHODS Electronic databases, such as MEDLINE (via PubMed), Google Scholar, Scopus, Cochrane Library, Web of Science, OpenGrey, and the U.S. National Institute of Heath-Clinical Trials, were searched up to 27 October 2022. In vivo/in vitro studies that assessed the release of BPA from different thermoplastic CA materials, with or without a control group, were selected. The risk of bias (RoB) in the randomised controlled trials (RCT) and in vitro studies was assessed using the Cochrane RoB tool and the guidelines for the reporting of pre-clinical studies, respectively. The quality of evidence was determined using the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) Pro tool. RESULTS Six studies were considered for review from a total of 1926 records. This included one RCT and five in vitro studies. Only two studies found leaching of BPA, while four did not report any traces. The RoB was found to be moderate to high. The GRADE evidence level ranged from low to very low. Five of the included studies were conducted in vitro. Significant heterogeneity among the included studies prevented a quantitative synthesis. CONCLUSION In light of the available conflicting evidence, BPA release from CAs can neither be confirmed nor denied. Safety remains questionable until high-quality in vivo trials prove otherwise. REGISTRATION PROSPERO CRD42022310434.
Collapse
Affiliation(s)
- Elbe Peter
- Department of Orthodontics & Dentofacial Orthopedics, Government Dental College, Kottayam, Kerala, India
| | - Monisha J
- Department of Orthodontics & Dentofacial Orthopedics, Annoor Dental College, Kerala, India
| | - Suja Ani George
- Department of Orthodontics & Dentofacial Orthopedics, Government Dental College, Kottayam, Kerala, India
| |
Collapse
|
3
|
Flores A, Moyano P, Sola E, García JM, García J, Frejo MT, Guerra-Menéndez L, Labajo E, Lobo I, Abascal L, Pino JD. Bisphenol-A Neurotoxic Effects on Basal Forebrain Cholinergic Neurons In Vitro and In Vivo. Biology (Basel) 2023; 12:782. [PMID: 37372067 DOI: 10.3390/biology12060782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/03/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023]
Abstract
The widely used plasticizer bisphenol-A (BPA) is well-known for producing neurodegeneration and cognitive disorders, following acute and long-term exposure. Although some of the BPA actions involved in these effects have been unraveled, they are still incompletely known. Basal forebrain cholinergic neurons (BFCN) regulate memory and learning processes and their selective loss, as observed in Alzheimer's disease and other neurodegenerative diseases, leads to cognitive decline. In order to study the BPA neurotoxic effects on BFCN and the mechanisms through which they are induced, 60-day old Wistar rats were used, and a neuroblastoma cholinergic cell line from the basal forebrain (SN56) was used as a basal forebrain cholinergic neuron model. Acute treatment of rats with BPA (40 µg/kg) induced a more pronounced basal forebrain cholinergic neuronal loss. Exposure to BPA, following 1- or 14-days, produced postsynaptic-density-protein-95 (PSD95), synaptophysin, spinophilin, and N-methyl-D-aspartate-receptor-subunit-1 (NMDAR1) synaptic proteins downregulation, an increase in glutamate content through an increase in glutaminase activity, a downregulation in the vesicular-glutamate-transporter-2 (VGLUT2) and in the WNT/β-Catenin pathway, and cell death in SN56 cells. These toxic effects observed in SN56 cells were mediated by overexpression of histone-deacetylase-2 (HDAC2). These results may help to explain the synaptic plasticity, cognitive dysfunction, and neurodegeneration induced by the plasticizer BPA, which could contribute to their prevention.
Collapse
Affiliation(s)
- Andrea Flores
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Paula Moyano
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Emma Sola
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - José Manuel García
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Jimena García
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - María Teresa Frejo
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Lucia Guerra-Menéndez
- Departamento de Fisiología, Facultad de Medicina, Universidad San Pablo CEU, 28003 Madrid, Spain
| | - Elena Labajo
- Departamento de Medicina Legal, Psiquiatría y Patología, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Inés Lobo
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Luisa Abascal
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Javier Del Pino
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| |
Collapse
|
4
|
Boudissa F, Arus VA, Foka-Wembe EN, Zekkari M, Ouargli-Saker R, Dewez D, Roy R, Azzouz A. Role of Silica on Clay-Catalyzed Ozonation for Total Mineralization of Bisphenol-A. Molecules 2023; 28:molecules28093825. [PMID: 37175235 PMCID: PMC10179811 DOI: 10.3390/molecules28093825] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Catalytic ozonation for the total mineralization of bisphenol-A (BPA) from aqueous solution was investigated in the presence of various silica-based catalysts such as mesoporous silica, acid-activated bentonite (HMt) and montmorillonite-rich materials (Mt) ion-exchanged with Na+ and Fe2+ cations (NaMt and Fe(II)Mt). The effects of the catalyst surface were studied by correlating the hydrophilic character and catalyst dispersion in the aqueous media to the silica content and BPA conversion. To the best of our knowledge, this approach has barely been tackled so far. Acid-activated and iron-free clay catalysts produced complete BPA degradation in short ozonation times. The catalytic activity was found to strongly depend on the hydrophilic character, which, in turn, depends on the Si content. Catalyst interactions with water and BPA appear to promote hydrophobic adsorption in high Si catalysts. These findings are of great importance because they allow tailoring silica-containing catalyst properties for specific features of the waters to be treated.
Collapse
Affiliation(s)
- Farida Boudissa
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, Montreal, QC H3C 3P8, Canada
| | - Vasilica-Alisa Arus
- Catalysis and Microporous Materials Laboratory, Vasile Alecsandri University of Bacau, 600115 Bacau, Romania
| | - Eric-Noel Foka-Wembe
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, Montreal, QC H3C 3P8, Canada
| | - Meriem Zekkari
- Department of Materials Engineering, University of Science and Technology, El M'naouer, B.P. 1505, Bir El Djir, Oran 31000, Algeria
| | - Rachida Ouargli-Saker
- Department of Materials Engineering, University of Science and Technology, El M'naouer, B.P. 1505, Bir El Djir, Oran 31000, Algeria
| | - David Dewez
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, Montreal, QC H3C 3P8, Canada
| | - René Roy
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, Montreal, QC H3C 3P8, Canada
| | - Abdelkrim Azzouz
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, Montreal, QC H3C 3P8, Canada
- École de Technologie Supérieure, Montreal, QC H3C 1K3, Canada
| |
Collapse
|
5
|
González-Gómez M, Reyes R, Damas-Hernández MDC, Plasencia-Cruz X, González-Marrero I, Alonso R, Bello AR. NTS, NTSR1 and ERs in the Pituitary-Gonadal Axis of Cycling and Postnatal Female Rats after BPA Treatment. Int J Mol Sci 2023; 24:ijms24087418. [PMID: 37108581 PMCID: PMC10138486 DOI: 10.3390/ijms24087418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/12/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
The neuropeptide neurotensin (NTS) is involved in regulating the reproductive axis and is expressed at each level of this axis (hypothalamus-pituitary-gonads). This dependence on estrogen levels has been widely demonstrated in the hypothalamus and pituitary. We focused on confirming the relationship of NTS with estrogens and the gonadal axis, using a particularly important environmental estrogenic molecule, bisphenol-A (BPA). Based on the experimental models or in vitro cell studies, it has been shown that BPA can negatively affect reproductive function. We studied for the first time the action of an exogenous estrogenic substance on the expression of NTS and estrogen receptors in the pituitary-gonadal axis during prolonged in vivo exposure. The exposure to BPA at 0.5 and 2 mg/kg body weight per day during gestation and lactation was monitored through indirect immunohistochemical procedures applied to the pituitary and ovary sections. Our results demonstrate that BPA induces alterations in the reproductive axis of the offspring, mainly after the first postnatal week. The rat pups exposed to BPA exhibited accelerated sexual maturation to puberty. There was no effect on the number of rats born per litter, although the fewer primordial follicles suggest a shorter fertile life.
Collapse
Affiliation(s)
- Miriam González-Gómez
- Departamento de Ciencias Médicas Básicas, Área de Anatomía Humana, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain
- Instituto de Tecnologías Biomédicas (ITB), 38200 La Laguna, Spain
- Instituto Universitario de Neurociencia (IUNE), Universidad de La Laguna, 38200 La Laguna, Spain
| | - Ricardo Reyes
- Instituto de Tecnologías Biomédicas (ITB), 38200 La Laguna, Spain
- Departamento de Bioquímica, Microbiología, Biología Celular y Genética, Área de Biología Celular, Facultad de Ciencias, Sección de Biología, Universidad de La Laguna, 38200 La Laguna, Spain
- Instituto de Enfermedades Tropicales y Salud Pública de Canarias (IUETSP), 38296 La Laguna, Spain
| | | | - Xiomara Plasencia-Cruz
- Departamento de Ciencias Médicas Básicas, Área de Anatomía Humana, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain
| | - Ibrahim González-Marrero
- Departamento de Ciencias Médicas Básicas, Área de Anatomía Humana, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain
- Instituto Universitario de Neurociencia (IUNE), Universidad de La Laguna, 38200 La Laguna, Spain
| | - Rafael Alonso
- Instituto de Tecnologías Biomédicas (ITB), 38200 La Laguna, Spain
- Departamento de Ciencias Médicas Básicas, Área de Fisiología, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain
| | - Aixa R Bello
- Departamento de Bioquímica, Microbiología, Biología Celular y Genética, Área de Biología Celular, Facultad de Ciencias, Sección de Biología, Universidad de La Laguna, 38200 La Laguna, Spain
- Instituto de Enfermedades Tropicales y Salud Pública de Canarias (IUETSP), 38296 La Laguna, Spain
| |
Collapse
|
6
|
Naidoo RN. Environmental plastics and lung health: Increasing evidence for concern. Respirology 2023; 28:206-207. [PMID: 36411227 DOI: 10.1111/resp.14411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 11/07/2022] [Indexed: 11/23/2022]
Affiliation(s)
- Rajen N Naidoo
- Discipline of Occupational and Environmental Health, University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
| |
Collapse
|
7
|
Felipe LPG, Peralta-Zamora PG, Silva BJGD. Photocatalytic degradation of bisphenol-A (BPA) over titanium dioxide, and determination of its by-products by HF-LPME/GC-MS. J Environ Sci Health A Tox Hazard Subst Environ Eng 2023; 58:107-115. [PMID: 36772930 DOI: 10.1080/10934529.2023.2173923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
In this work, analytical strategies were developed based on the technique of hollow fiber liquid-phase microextraction and chromatographic methods (LC-UV and GC/MS). These methods allowed the identification of the main Bisphenol-A by-products applying heterogeneous photocatalysis in water samples. BPA degradation in this study was in the order of 90%, and the conditions used in the HF-LPME were optimized through 23 factorial design (6 cm fiber length, stirring speed of 750 rpm, and an extraction time of 30 min). Using a HF-LPME/GC-MS analytical strategy, it was possible to identify six by-products of BPA photodegradation, two of which have not been reported in the literature so far. This knowledge was quite important since the degradation can lead to the formation of more toxic and persistent by-products than the BPA. With the Toxtree software, three degradation products were found to be persistent to the environment, in addition to BPA; however, in 360 minutes of reaction, chromatographic peaks of the precursors were not identified, suggesting that there may have been a total degradation of these compounds. The results showed a great application potential of a miniaturized extraction technique to extract and pre-concentrate the degradation products of emerging contaminants.
Collapse
|
8
|
Stavridis K, Triantafyllidou O, Pisimisi M, Vlahos N. Bisphenol-A and Female Fertility: An Update of Existing Epidemiological Studies. J Clin Med 2022; 11:jcm11237227. [PMID: 36498800 PMCID: PMC9736436 DOI: 10.3390/jcm11237227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/06/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Humans interfere with a variety of endocrine disruptors on a daily basis, which may result in adverse health effects. Among them, Bisphenol-A (BPA) is the most debated endocrine disruptor, despite being widely studied, regarding its effects on fertility. The aim of this review was to investigate the interrelation of BPA and female fertility. PubMed (Medline) was searched from 2013 until 2022 to identify epidemiological studies that report the association of BPA with fertility parameters, in vitro fertilization (IVF) outcomes, polycystic ovarian syndrome (PCOS) and endometriosis. Regarding general fertility, most studies report an inverse association between BPA and ovarian reserve markers, namely antral follicle count (AFC) and anti-Müllerian hormone (AMH). The BPA and estradiol (E2) levels did not correlate significantly in the majority of studies. No definite conclusions can be reached regarding BPA and IVF endpoints or endometriosis. Lastly, most studies report higher prevalence of PCOS in women with higher BPA concentrations, although no casualty has been proven. Although most studies fail to reach definite conclusion regarding the impact of BPA on fertility, there is accumulating evidence suggesting a negative role of BPA in female reproductive health.
Collapse
Affiliation(s)
- Konstantinos Stavridis
- 2nd Department of Obstetrics and Gynaecology, Aretaieion Hospital, University of Athens, 11527 Attica, Greece
- Correspondence: ; Tel.: +30-6981919457
| | - Olga Triantafyllidou
- 2nd Department of Obstetrics and Gynaecology, Aretaieion Hospital, University of Athens, 11527 Attica, Greece
| | - Maria Pisimisi
- School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Nikolaos Vlahos
- 2nd Department of Obstetrics and Gynaecology, Aretaieion Hospital, University of Athens, 11527 Attica, Greece
| |
Collapse
|
9
|
Zhang H, Shi Z, Ma J, Cui F, Zhang J, Strathmann TJ. Abatement of Organic Contaminants by Mn(VII)/TEMPOs: Effects of TEMPOs Structure, Organic Contaminant Speciation, and Active Oxidizing Species. Environ Sci Technol 2022; 56:10361-10371. [PMID: 35748905 DOI: 10.1021/acs.est.2c02098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this study, a representative redox mediator, 2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO), and its para-substituted derivatives (TEMPOs: 4-hydroxyl-TEMPO, 4-acetylamino-TEMPO, and 4-amino-TEMPO) significantly accelerated the abatement of trace organic contaminants (TrOCs, i.e., bisphenol-A (BPA), phenol, amines, and phenylbutazone) by Mn(VII) over a wide pH range of 4.0-9.0. The addition of substituents at para to the > N-O• moiety significantly influenced the degradation kinetics of TrOCs by changing the reduction potentials of TEMPOs and the corresponding oxoammonium cations (TEMPOs+); a linear relationship was observed between the substituents' para Hammett sigma constants and the reduction potentials of TEMPOs and TEMPOs+. Pseudo-first-order reaction rate constants (kobs, min-1) of TrOC degradation by Mn(VII)/TEMPOs were also affected by the pKa of the TrOCs. Generally, the highest kobs values for individual TrOCs were observed at pH near the pKa even for TEMPOs+ with relatively pH-invariant reduction potentials. Overall, TrOC abatement kinetics were related to a combination of reactive species (Mn(VII), in situ formed MnO2, and TEMPOs+). For BPA, the relative contributions (R) of reactive species ranked as R(TEMPOs+) > R(Mn(VII)) > R(in situ formed MnO2) at pH 4.0-8.0, whereas R(Mn(VII)) > R(TEMPOs+) at pH 9.0 mainly owing to a change in BPA speciation as the pH approached the pKa1 value for BPA. The results of this study are useful for the development of heterogeneous TEMPO-based redox mediators and future applications of TEMPO-mediated oxidation systems for accelerated abatement of TrOCs in water.
Collapse
Affiliation(s)
- Honglong Zhang
- School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
- College of Environment and Ecology, Chongqing University, Chongqing 400045, P. R. China
| | - Zhenyu Shi
- Environment Monitoring Center of Jiangsu Province, Nanjing 210036, P. R. China
| | - Jun Ma
- School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Fuyi Cui
- College of Environment and Ecology, Chongqing University, Chongqing 400045, P. R. China
| | - Jing Zhang
- School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
- College of Environment and Ecology, Chongqing University, Chongqing 400045, P. R. China
| | - Timothy J Strathmann
- Department of Civil and Environmental Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
| |
Collapse
|
10
|
Schmalz G, Widbiller M. Biocompatibility of Amalgam vs Composite - A Review. Oral Health Prev Dent 2022; 20:149-156. [PMID: 35308016 DOI: 10.3290/j.ohpd.b2831749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The Minamata Convention resulted in restrictions in the use of amalgam in daily dental practice. This opens up new discussions about the biocompatibility of amalgam, but also of composites as alternative materials. In the following review article, these issues will be discussed in more detail to provide dentists with a knowledge base for themselves and for communication with their patients. In addition to mercury in amalgam or monomers in composites, bisphenol A and nanoparticles generated during the grinding, polishing or removal of restorations must also be included in the biocompatibility evaluation. In laboratory tests, these substances cause toxic reactions, and bisphenol A also exhibits estrogen-like effects. However, it must be taken into account that the concentrations used in laboratory tests are much higher than in clinical practice. Thus, both amalgam and composite can be used in the general population. Nevertheless, for scientifically, politically and legally defined risk groups (e.g. dental personnel, allergic persons, pregnant or lactating women, children under 15 years of age, people with certain systemic diseases), indication restrictions and precautionary measures must be observed. The well-known amalgam discussion has taught us the importance of thorough and open risk communication with the patient.
Collapse
|
11
|
Smith MJ, Weber RJM, Viant MR. Spatially Mapping the Baseline and Bisphenol-A Exposed Daphnia magna Lipidome Using Desorption Electrospray Ionization-Mass Spectrometry. Metabolites 2022; 12:33. [PMID: 35050155 DOI: 10.3390/metabo12010033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/18/2021] [Accepted: 12/27/2021] [Indexed: 02/05/2023] Open
Abstract
Untargeted lipidomics has previously been applied to the study of daphnids and the discovery of biomarkers that are indicative of toxicity. Typically, liquid chromatography—mass spectrometry is used to measure the changes in lipid abundance in whole-body homogenates of daphnids, each only ca. 3 mm in length which limits any biochemical interpretation of site-specific toxicity. Here, we applied mass spectrometry imaging of Daphnia magna to combine untargeted lipidomics with spatial resolution to map the molecular perturbations to defined anatomical regions. A desorption electrospray ionization—mass spectrometry (DESI-MS) method was optimized and applied to tissue sections of daphnids exposed to bisphenol-A (BPA) compared to unexposed controls, generating an untargeted mass spectrum at each pixel (35 µm2/pixel) within each section. First, unique lipid profiles from distinct tissue types were identified in whole-body daphnids using principal component analysis, specifically distinguishing appendages, eggs, eye, and gut. Second, changes in the lipidome were mapped over four stages of normal egg development and then the effect of BPA exposure on the egg lipidome was characterized. The primary perturbations to the lipidome were annotated as triacylglycerides and phosphatidylcholine, and the distributions of the individual lipid species within these classes were visualized in whole-body D. magna sections as ion images. Using an optimized DESI-MS workflow, the first ion images of D. magna tissue sections were generated, mapping both their baseline and BPA-perturbed lipidomes.
Collapse
|
12
|
Kabel AM, Salama SA, Borg HM, Ali DA, Abd Elmaaboud MA. Targeting p-AKT/mTOR/MAP kinase signaling, NLRP3 inflammasome and apoptosis by fluvastatin with or without taxifolin mitigates gonadal dysfunction induced by bisphenol-A in male rats. Hum Exp Toxicol 2022; 41:9603271221089919. [PMID: 35465754 DOI: 10.1177/09603271221089919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Bisphenol-A (BPA) is a chemical substance that is widely used in industry for manufacturing of plastic bottles and resins. Recent reports found that BPA may mimic the effects of estrogen to a great manner that might disrupt the normal hormonal balance in the human body. Fluvastatin is an agent used for treatment of hypercholesterolemia that was proven to possess promising antioxidant ant anti-inflammatory properties. Taxifolin is a polyphenolic compound with potential antioxidant and antiestrogenic effects. The present study investigated the prospect of fluvastatin with or without taxifolin to mitigate testicular dysfunction elicited by BPA in rats. In a model of BPA-induced testicular toxicity, the hormonal profile was assessed and the testicular tissues were examined by biochemical analysis, histopathology, and immunohistochemistry. Fluvastatin with or without taxifolin improved the body weight gain, hormonal profile, testicular weight and functions, sperm characteristics, the antioxidant status, and the anti-inflammatory mechanisms together with enhancement of autophagy and suppression of the proapoptotic events induced by BPA in the testicular tissues. In addition, fluvastatin with or without taxifolin significantly mitigated the histopathological and the immunohistochemical changes induced by BPA in the testicular tissues. These desirable effects were more pronounced with fluvastatin/taxifolin combination relative to the use of each of these agents alone. In tandem, fluvastatin/taxifolin combination might counteract the pathogenic events induced by BPA in the testicular tissues which may be considered as a novel strategy for amelioration of these disorders.
Collapse
Affiliation(s)
- Ahmed M Kabel
- Department of Pharmacology, Faculty of Medicine, 68782Tanta University, Tanta, Egypt
| | - Samir A Salama
- Division of Biochemistry, Department of Pharmacology, College of Pharmacy, 125895Taif University, Taif, Saudi Arabia
| | - Hany M Borg
- Physiology Department, Faculty of Medicine, 289154Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Dina A Ali
- Clinical Pathology Department, Faculty of Medicine, 68782Tanta University, Tanta, Egypt
| | - Maaly A Abd Elmaaboud
- Department of Pharmacology, Faculty of Medicine, 68782Tanta University, Tanta, Egypt
| |
Collapse
|
13
|
Wang J, Jin S, Fu W, Liang Y, Yang Y, Xu X. Pubertal exposure to bisphenol-A affects social recognition and arginine vasopressin in the brain of male mice. Ecotoxicol Environ Saf 2021; 226:112843. [PMID: 34601267 DOI: 10.1016/j.ecoenv.2021.112843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
Social recognition is an ability of animals to identify and distinguish conspecifics, which is essential for nearly all social species to establish social relationships. Social recognition provides the basis for a variety of social behaviors. Because of modulated by gonadal hormones, it is possible that social cognition is affected by environmental endocrine disruptors (EEDs). In the present study, after being pubertal exposed to bisphenol A (BPA, 0.04, 0.4, and 4 mg/kg) for 18 days, adult male mice did not show significant dishabituation to a novel female stimulus in habituation-dishabituation task. The capacity for discriminating the odors between familiar and novel female urine or between male and female urine was suppressed in BPA-exposed male. In addition, BPA (0.4, 4 mg/kg) decreased the number of immunoreaction of AVP (AVP-ir) neurons in both the bed nucleus of the stria terminalis (BNST) and the medial amygdala (MeA), and BPA (0.04, 0.4, 4 mg/kg) reduced the level of V1αR in the lateral septum (LS) of adult male. Further, BPA decreased the levels of testosterone (T) in the brain and androgens receptor (AR) in the LS, the amygdala, and BNST, as well the levels of estrogen receptor α and β (ERα/β) in the amygdala and BNST. These results indicate that pubertal exposure to BPA affected the actions of both androgens and estrogens in the brain and inhibited AVP system of social circuits, and these alterations may be associated with impaired social recognition of adult male mice.
Collapse
Affiliation(s)
- Jinshan Wang
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Provincial Key Laboratory of Ecology, Zhejiang Normal University, PR China
| | - Shizhen Jin
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Provincial Key Laboratory of Ecology, Zhejiang Normal University, PR China
| | - Wenshuang Fu
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Provincial Key Laboratory of Ecology, Zhejiang Normal University, PR China
| | - Yufeng Liang
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Provincial Key Laboratory of Ecology, Zhejiang Normal University, PR China
| | - Yani Yang
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Provincial Key Laboratory of Ecology, Zhejiang Normal University, PR China
| | - Xiaohong Xu
- Chemistry and Life Sciences College, Key Laboratory of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Zhejiang Provincial Key Laboratory of Ecology, Zhejiang Normal University, PR China.
| |
Collapse
|
14
|
Bisconti M, Simon JF, Grassi S, Leroy B, Martinet B, Arcolia V, Isachenko V, Hennebert E. Influence of Risk Factors for Male Infertility on Sperm Protein Composition. Int J Mol Sci 2021; 22:13164. [PMID: 34884971 PMCID: PMC8658491 DOI: 10.3390/ijms222313164] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 12/22/2022] Open
Abstract
Male infertility is a common health problem that can be influenced by a host of lifestyle risk factors such as environment, nutrition, smoking, stress, and endocrine disruptors. These effects have been largely demonstrated on sperm parameters (e.g., motility, numeration, vitality, DNA integrity). In addition, several studies showed the deregulation of sperm proteins in relation to some of these factors. This review inventories the literature related to the identification of sperm proteins showing abundance variations in response to the four risk factors for male infertility that are the most investigated in this context: obesity, diabetes, tobacco smoking, and exposure to bisphenol-A (BPA). First, we provide an overview of the techniques used to identify deregulated proteins. Then, we summarise the main results obtained in the different studies and provide a compiled list of deregulated proteins in relation to each risk factor. Gene ontology analysis of these deregulated proteins shows that oxidative stress and immune and inflammatory responses are common mechanisms involved in sperm alterations encountered in relation to the risk factors.
Collapse
Affiliation(s)
- Marie Bisconti
- Laboratory of Cell Biology, Research Institute for Biosciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium; (M.B.); (S.G.); (E.H.)
| | - Jean-François Simon
- Fertility Clinic, CHU Ambroise Paré Hospital, Boulevard Kennedy 2, 7000 Mons, Belgium; (J.-F.S.); (V.A.)
| | - Sarah Grassi
- Laboratory of Cell Biology, Research Institute for Biosciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium; (M.B.); (S.G.); (E.H.)
| | - Baptiste Leroy
- Laboratory of Proteomics and Microbiology, CISMa, Research Institute for Biosciences, University of Mons, 7000 Mons, Belgium;
| | - Baptiste Martinet
- Evolutionary Biology & Ecology, Université Libre de Bruxelles, Avenue Paul Héger, CP 160/12, 1000 Brussels, Belgium;
| | - Vanessa Arcolia
- Fertility Clinic, CHU Ambroise Paré Hospital, Boulevard Kennedy 2, 7000 Mons, Belgium; (J.-F.S.); (V.A.)
| | - Vladimir Isachenko
- Department of Obstetrics and Gynecology, University of Cologne, Kerpener Strasse 34, 50931 Cologne, Germany
| | - Elise Hennebert
- Laboratory of Cell Biology, Research Institute for Biosciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium; (M.B.); (S.G.); (E.H.)
| |
Collapse
|
15
|
Keßler S, Reinalter ER, Schmidt J, Cölfen H. Environmentally Benign Formation of Nickel Hexacyanoferrate-Derived Mesoframes for Heterogeneous Catalysis. Nanomaterials (Basel) 2021; 11:nano11102756. [PMID: 34685196 PMCID: PMC8537782 DOI: 10.3390/nano11102756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 10/13/2021] [Indexed: 12/03/2022]
Abstract
The tetramethylammonium hydroxide (TMAH)-controlled alkaline etching of nickel hexacyanoferrate (NiHCF) mesocrystals is explored. The alkaline etching enables the formation of hollow framework structures with an increased surface area, the exposure of active Ni and Fe sites and the retention of morphology. The ambient reaction conditions enable the establishment of a sustainable production. Our work reveals novel perspectives on the eco-friendly synthesis of hollow and colloidal superstructures for the efficient degradation of the organic contaminants rhodamine-B and bisphenol-A. In the case of peroxomonosulfate (PMS)-mediated bisphenol-A degradation, the rate constant of the etched mesoframes was 10,000 times higher indicating their significant catalytic activity.
Collapse
Affiliation(s)
- Sascha Keßler
- Physical Chemistry, Department of Chemistry, University of Konstanz, Universitätsstrasse 10, D-78457 Konstanz, Germany; (S.K.); (E.R.R.)
| | - Elrike R. Reinalter
- Physical Chemistry, Department of Chemistry, University of Konstanz, Universitätsstrasse 10, D-78457 Konstanz, Germany; (S.K.); (E.R.R.)
| | - Johannes Schmidt
- Department of Chemistry, Technical University of Berlin, Hardenbergstrasse 40, D-10623 Berlin, Germany;
| | - Helmut Cölfen
- Physical Chemistry, Department of Chemistry, University of Konstanz, Universitätsstrasse 10, D-78457 Konstanz, Germany; (S.K.); (E.R.R.)
- Correspondence:
| |
Collapse
|
16
|
Lu IC, Chao HR, Mansor WNW, Peng CW, Hsu YC, Yu TY, Chang WH, Fu LM. Levels of Phthalates, Bisphenol-A, Nonylphenol, and Microplastics in Fish in the Estuaries of Northern Taiwan and the Impact on Human Health. Toxics 2021; 9:toxics9100246. [PMID: 34678942 PMCID: PMC8540681 DOI: 10.3390/toxics9100246] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 11/25/2022]
Abstract
Due to the sparsity in knowledge, we investigated the presence of various estrogenic endocrine-disrupting chemicals (EEDCs), including phthalates (PAEs), bisphenol-A (BPA), and nonylphenol (NP), as well as microplastics (MPs) in samples of the most widely consumed fish collected from different estuaries in northern Taiwan. We then proceeded to determine the likely contribution that this exposure has on the potential for health impacts in humans following consumption of the fish. Six hundred fish caught from five river estuaries (producing 130 pooled samples) were analyzed to determine how different factors (such as the river, benthic, pelagic, and migratory species) influence EEDCs’ contamination and the possible impacts on human health following typical consumption patterns. The predominant EEDCs was diethyl phthalates (DEP), bis (2-ethylhexyl) phthalates (DEHP), and di-iso-nonylphthalate (DINP) in fish, present at 52.9 ± 77.3, 45.3 ± 79.8, and 42.5 ± 79.3 ng/g dry weight (d.w.), respectively. Residual levels of NP, BPA, and MPs in the fish were 17.4 ± 29.1 and 1.50 ± 2.20 ng/g d.w. and 0.185 ± 0.338 mg/g d.w., respectively. EEDCs and MPs levels varied widely among the five river estuaries sampled due, in part, to differences in habitat types and the associated diversity of fish species sampled. For DEP, the Lao-Jie River and pelagic environments produced the most severely contaminated fish species, respectively. DEP residues were also associated with the burden of MPs in the fish. Based on our analysis, we predict no substantial direct human health risk by EEDCs based on typical consumption rates of estuarine fish by the Taiwanese people. However, other sources of EEDC exposure cannot be ignored.
Collapse
Affiliation(s)
- I-Cheng Lu
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, College of Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung 91201, Taiwan;
| | - How-Ran Chao
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, College of Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung 91201, Taiwan;
- Institute of Food Safety Management, National Pingtung University of Science and Technology, Neipu, Pingtung 1201, Taiwan
- Emerging Compounds Research Center, General Research Service Center, National Pingtung University of Science and Technology, Neipu, Pingtung 91201, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung City 807, Taiwan
- Correspondence: ; Tel.: +886-87703202 (ext. 7517); Fax: +886-87740256
| | - Wan-Nurdiyana-Wan Mansor
- Faculty of Ocean Engineering Technology & Informatics, Universiti Malaysia Terengganu, Kuala Terengganu 21300, Malaysia;
| | - Chun-Wei Peng
- Covalent Bond Technical Services, Ltd., Taipei 104051, Taiwan;
| | - Yi-Chyun Hsu
- Department of Environmental Engineering, Kun Shan University, Tainan 71003, Taiwan;
| | - Tai-Yi Yu
- Department of Risk Management and Insurance, Ming Chuan University, Taipei 11103, Taiwan;
| | - Wei-Hsiang Chang
- Research Center of Environmental Trace Toxic Substances, National Cheng Kung University, Tainan 701, Taiwan;
| | - Lung-Ming Fu
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan;
| |
Collapse
|
17
|
García-Arévalo M, Lorza-Gil E, Cardoso L, Batista TM, Araujo TR, Ramos LAF, Areas MA, Nadal A, Carneiro EM, Davel AP. Ventricular Fibrosis and Coronary Remodeling Following Short-Term Exposure of Healthy and Malnourished Mice to Bisphenol A. Front Physiol 2021; 12:638506. [PMID: 33912069 PMCID: PMC8072349 DOI: 10.3389/fphys.2021.638506] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 03/03/2021] [Indexed: 11/15/2022] Open
Abstract
Bisphenol-A (BPA) is an endocrine disruptor associated with higher risk of insulin resistance, type 2 diabetes, and cardiovascular diseases especially in susceptible populations. Because malnutrition is a nutritional disorder associated with high cardiovascular risk, we sought to compare the effects of short-term BPA exposure on cardiovascular parameters of healthy and protein-malnourished mice. Postweaned male mice were fed a normo- (control) or low-protein (LP) diet for 8 weeks and then exposed or not to BPA (50 μg kg−1 day−1) for the last 9 days. Systolic blood pressure was higher in BPA or LP groups compared with the control group. However, diastolic blood pressure was enhanced by BPA only in malnourished mice. Left ventricle (LV) end diastolic pressure (EDP), collagen deposition, and CTGF mRNA expression were higher in the control or malnourished mice exposed to BPA than in the respective nonexposed groups. Nevertheless, mice fed LP diet exposed to BPA exhibited higher angiotensinogen and cardiac TGF-β1 mRNA expression than mice treated with LP or BPA alone. Wall:lumen ratio and cross-sectional area of intramyocardial arteries were higher either in the LP or BPA group compared with the control mice. Taken together, our data suggest that short-term BPA exposure results in LV diastolic dysfunction and fibrosis, and intramyocardial arteries inward remodeling, besides potentiate protein malnutrition-induced hypertension and cardiovascular risk.
Collapse
Affiliation(s)
- Marta García-Arévalo
- Department of Structural and Functional Biology, Institute of Biology, Campinas, Brazil.,Obesity and Comorbidities Research Center-OCRC, UNICAMP, Campinas, Brazil
| | - Estela Lorza-Gil
- Department of Structural and Functional Biology, Institute of Biology, Campinas, Brazil.,Obesity and Comorbidities Research Center-OCRC, UNICAMP, Campinas, Brazil
| | - Leandro Cardoso
- Department of Structural and Functional Biology, Institute of Biology, Campinas, Brazil
| | - Thiago Martins Batista
- Department of Structural and Functional Biology, Institute of Biology, Campinas, Brazil.,Obesity and Comorbidities Research Center-OCRC, UNICAMP, Campinas, Brazil
| | - Thiago Reis Araujo
- Department of Structural and Functional Biology, Institute of Biology, Campinas, Brazil.,Obesity and Comorbidities Research Center-OCRC, UNICAMP, Campinas, Brazil
| | | | - Miguel Arcanjo Areas
- Department of Structural and Functional Biology, Institute of Biology, Campinas, Brazil
| | - Angel Nadal
- Instituto de Biología Molecular y Celular, Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche, Spanish Biomedical Research Center in Diabetes and Associated Metabolic Disorders, Universidad Miguel Hernández, Elche, Spain
| | - Everardo Magalhães Carneiro
- Department of Structural and Functional Biology, Institute of Biology, Campinas, Brazil.,Obesity and Comorbidities Research Center-OCRC, UNICAMP, Campinas, Brazil
| | - Ana Paula Davel
- Department of Structural and Functional Biology, Institute of Biology, Campinas, Brazil
| |
Collapse
|
18
|
Hassan R, Aslam Khan MU, Abdullah AM, Abd Razak SI. A Review on Current Trends of Polymers in Orthodontics: BPA-Free and Smart Materials. Polymers (Basel) 2021; 13:1409. [PMID: 33925332 PMCID: PMC8123702 DOI: 10.3390/polym13091409] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 12/12/2022] Open
Abstract
Polymeric materials have always established an edge over other classes of materials due to their potential applications in various fields of biomedical engineering. Orthodontics is an emerging field in which polymers have attracted the enormous attention of researchers. In particular, thermoplastic materials have a great future utility in orthodontics, both as aligners and as retainer appliances. In recent years, the use of polycarbonate brackets and base monomers bisphenol A glycerolate dimethacrylate (bis-GMA) has been associated with the potential release of bisphenol A (BPA) in the oral environment. BPA is a toxic compound that acts as an endocrine disruptor that can affect human health. Therefore, there is a continuous search for non-BPA materials with satisfactory mechanical properties and an esthetic appearance as an alternative to polycarbonate brackets and conventional bis-GMA compounds. This study aims to review the recent developments of BPA-free monomers in the application of resin dental composites and adhesives. The most promising polymeric smart materials are also discussed for their relevance to future orthodontic applications.
Collapse
Affiliation(s)
- Rozita Hassan
- Orthodontic Unit, School of Dental Sciences, Universiti Sains Malaysia, Kelantan 16150, Malaysia;
| | - Muhammad Umar Aslam Khan
- BioInspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Malaysia;
- Nanoscience and Technology Department (NS & TD), National Center for Physics, Islamabad 44000, Pakistan
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China
| | - Abdul Manaf Abdullah
- Orthodontic Unit, School of Dental Sciences, Universiti Sains Malaysia, Kelantan 16150, Malaysia;
| | - Saiful Izwan Abd Razak
- BioInspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Malaysia;
- Center for Advanced Composite Materials, Universiti Teknologi Malaysia, Skudai 81300, Malaysia
| |
Collapse
|
19
|
Chioccarelli T, Migliaccio M, Suglia A, Manfrevola F, Porreca V, Diano N, Errico S, Fasano S, Cobellis G. Characterization of Estrogenic Activity and Site-Specific Accumulation of Bisphenol-A in Epididymal Fat Pad: Interfering Effects on the Endocannabinoid System and Temporal Progression of Germ Cells. Int J Mol Sci 2021; 22:2540. [PMID: 33802611 DOI: 10.3390/ijms22052540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/25/2021] [Accepted: 02/26/2021] [Indexed: 12/31/2022] Open
Abstract
The objective of this work has been to characterize the estrogenic activity of bisphenol-A (BPA) and the adverse effects on the endocannabinoid system (ECS) in modulating germ cell progression. Male offspring exposed to BPA during the foetal-perinatal period at doses below the no-observed-adverse-effect-level were used to investigate the exposure effects in adulthood. Results showed that BPA accumulates specifically in epididymal fat rather than in abdominal fat and targets testicular expression of 3β-hydroxysteroid dehydrogenase and cytochrome P450 aromatase, thus promoting sustained increase of estrogens and a decrease of testosterone. The exposure to BPA affects the expression levels of some ECS components, namely type-1 (CB1) and type-2 cannabinoid (CB2) receptor and monoacylglycerol-lipase (MAGL). Furthermore, it affects the temporal progression of germ cells reported to be responsive to ECS and promotes epithelial germ cell exfoliation. In particular, it increases the germ cell content (i.e., spermatogonia while reducing spermatocytes and spermatids), accelerates progression of spermatocytes and spermatids, promotes epithelial detachment of round and condensed spermatids and interferes with expression of cell–cell junction genes (i.e., zonula occcludens protein-1, vimentin and β-catenin). Altogether, our study provides evidence that early exposure to BPA produces in adulthood sustained and site-specific BPA accumulation in epididymal fat, becoming a risk factor for the reproductive endocrine pathways associated to ECS.
Collapse
|
20
|
Kundu S, Korin Manor N, Radian A. Iron-Montmorillonite-Cyclodextrin Composites as Recyclable Sorbent Catalysts for the Adsorption and Surface Oxidation of Organic Pollutants. ACS Appl Mater Interfaces 2020; 12:52873-52887. [PMID: 33169983 DOI: 10.1021/acsami.0c17510] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Iron-clay-cyclodextrin composites were designed as sorbent catalysts to adsorb and oxidize pollutants from water. The clay-iron backbone served as a mechanical support and as a heterogeneous Fenton catalyst, and the cyclodextrin monomers or polymers cross-linked with polyfluorinated aromatic molecules were used to accommodate adsorption of the pollutants. The composite based on iron-clay-cyclodextrin-polymers (Fe-MMT-βCD-DFB) exhibited superior adsorption and degradation of the model pollutants, bisphenol A (BPA), carbamazepine (CBZ), and perfluorooctanoic acid (PFOA), compared to the monomer-based composite and the native iron clay. The variety of adsorption sites, such as the polyfluorinated aromatic cross-linker, cyclodextrin toroid, and iron-clay surface, resulted in high adsorption affinity toward all pollutants; BPA was primarily adsorbed to the cyclodextrin functional groups, CBZ showed high affinity toward the Fe-MMT surface and the Fe-MMT-βCD-DFB composite, whereas PFOA was adsorbed mainly to the βCD-DFB polymer. Degradation, using H2O2, was highly efficient, reaching over 90% degradation in 1 h for BPA and CBZ and ∼80% for PFOA. The composite also showed excellent degradation efficiency in a multicomponent system with all three model pollutants. Furthermore, the composite's activity remained steady for five consecutive cycles of adsorption and degradation. The ability to remediate a broad range of pollutants, and the high overall removal exhibited by this novel material, demonstrates the potential for future application in water remediation technologies.
Collapse
Affiliation(s)
- Samapti Kundu
- Faculty of Civil and Environmental Engineering, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - Naama Korin Manor
- Faculty of Civil and Environmental Engineering, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - Adi Radian
- Faculty of Civil and Environmental Engineering, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
| |
Collapse
|
21
|
Yang JC, Park J. Molecular Imprinting of Bisphenol A on Silica Skeleton and Gold Pinhole Surfaces in 2D Colloidal Inverse Opal through Thermal Graft Copolymerization. Polymers (Basel) 2020; 12:E1892. [PMID: 32842670 PMCID: PMC7564607 DOI: 10.3390/polym12091892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 11/16/2022] Open
Abstract
This study successfully fabricated BPA-imprinted poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) (poly(4-VP-co-EGDMA)) quartz crystal microbalance (MIP-QCM) sensors on a silica skeleton surface and gold pinholes of silica inverse opal through surface-initiated atom transfer radical polymerization (SI-ATRP). The sensing features of the two MIP films on the structured silica surface and nano-scale local gold surface were investigated by measuring the resonant frequency change (∆f) in QCM sensors. The ∆f values for the p-MIP (MIP on gold pinholes) and s-MIP films (MIP on silica skeleton surface) were obtained with the ∆f value of -199 ± 4.9 Hz and -376 ± 19.1 Hz, respectively, whereas for p-/s-NIP films, the ∆f values were observed to be -115 ± 19.2 Hz and -174 ± 5.8 Hz by the influence of non-specific adsorption on the surface of the films. Additionally, the imprinting factor (IF) appeared to be 1.72 for p-MIP film and 2.15 for s-MIP film, and the limits of quantitation (LOQ) and detection (LOD) were 54.924 and 18.125 nM (p-MIP film) and 38.419 and 12.678 nM (s-MIP film), respectively. Using the Freundlich isotherm model, the binding affinity of the BPA-imprinted films was evaluated. This was measured in an aqueous solution of BPA whose concentration ranged between 45 and 225 nM. It was found that the p-MIP film (m = 0.39) was relatively more heterogeneous than the s-MIP film (m = 0.33), both of which were obtained from the slope of the linear regressions. Finally, the selectivity of the MIP-QCM sensors for BPA detection was determined by measuring the effect of other analogous chemicals, such as bisphenol F (BPF), bisphenol AP (BPAP), and bisphenol B (BPB), in aqueous solutions. The selectivity coefficients (k*) of the two MIP films had ~1.9 for the p-MIP and ~2.3 for the s-MIP films, respectively. The results reveal that, with respect to signal amplification of the QCM sensors, the s-MIP film has better sensing features and faster detection responses than the p-MIP film.
Collapse
Affiliation(s)
- Jin Chul Yang
- School of Applied Chemical Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea;
| | - Jinyoung Park
- School of Applied Chemical Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea;
- Department of Polymer Science & Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea
| |
Collapse
|
22
|
Iliadi A, Koletsi D, Papageorgiou SN, Eliades T. Safety Considerations for Thermoplastic-Type Appliances Used as Orthodontic Aligners or Retainers. A Systematic Review and Meta-Analysis of Clinical and In-Vitro Research. Materials (Basel) 2020; 13:ma13081843. [PMID: 32295303 PMCID: PMC7215465 DOI: 10.3390/ma13081843] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 04/10/2020] [Accepted: 04/11/2020] [Indexed: 12/19/2022]
Abstract
Use of thermoplastic material in orthodontics, either as aligner or as retainer appliances, is common practice and is likely to increase in the years to come. However, no systematic assessment on safety considerations of these adjuncts has been implemented up to date. The aim of this systematic review was to collectively appraise the existing evidence from both clinical and laboratory studies, on whether these appliances are associated with any estrogenic/cytotoxic effects or bisphenol-A (BPA) and monomer leaching. Eight electronic databases were searched with no limits in December 22, 2019, for published and unpublished research. Eligibility criteria comprised of studies of any design, describing use of any type of thermoplastic aligner. Study selection, data extraction and risk of bias (RoB) assessment was done independently, either in duplicate or confirmed by a second reviewer. Random effects meta-analyses of weighted mean differences (WMD) with associated 95% Confidence Intervals (CIs) were planned. Quality of the evidence was evaluated with Grading of Recommendations Assessment, Development and Evaluation (GRADE). A total of 58 articles were initially identified, while 5 were included in qualitative synthesis and 2 of those contributed to the quantitative syntheses. Four studies were in-vitro, while one was a randomized controlled trial; all assessed some type of orthodontic aligner or retainer, either as-received or retrieved. Risk of bias recordings ranged between unclear and high for all studies. Proliferation induction capacity of thermoplastic appliances’ eluents on MCF-7 cells failed to be confirmed compared to beta-estradiol (2 studies: 5% v/v, WMD: −182.08; 95% CI: −198.83, −165.33; p-value < 0.001; and 20% v/v, WMD: −184.53; 95% CI: −206.17, −162.88; p-value < 0.001). No cytotoxic activity was detected as well. In addition, although evidence from in-vitro studies was indicative of no traceable detection of BPA or other monomers, the findings from a single clinical trial were allied to increased levels of BPA in whole stimulated saliva, after up to 30 days of thermoplastic retainer usage, compared to standard Hawley retainer. The quality of the evidence overall was low to medium. Current data from in-vitro research are indicative of an absence of an estrogenic or cytotoxic effect of thermoplastic aligners or retainers. Regarding BPA or monomer release, evidence from clinical and laboratory studies appear inconsistent.
Collapse
Affiliation(s)
- Anna Iliadi
- Department of Biomaterials, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Despina Koletsi
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (D.K.); (S.N.P.)
| | - Spyridon N. Papageorgiou
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (D.K.); (S.N.P.)
| | - Theodore Eliades
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, 8032 Zurich, Switzerland; (D.K.); (S.N.P.)
- Correspondence:
| |
Collapse
|
23
|
Güleş Ö, Kum Ş, Yıldız M, Boyacıoğlu M, Ahmad E, Naseer Z, Eren Ü. Protective effect of coenzyme Q10 against bisphenol-A-induced toxicity in the rat testes. Toxicol Ind Health 2020; 35:466-481. [PMID: 31364507 DOI: 10.1177/0748233719862475] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The present study was conducted to investigate the antioxidant, histomorphometric, histochemical, immunohistochemical, biochemical, and cytological effects of coenzyme Q10 (CoQ10) against bisphenol-A (BPA)-induced testicular toxicity in rats. A total of 40 adult male Wistar rats were divided into five equal groups. The control group remained untreated. The vehicle control group was administered corn oil (2 ml/kg/day), the BPA group was given BPA (100 mg/kg/day), the CoQ10 group was supplemented with CoQ10 (10 mg/kg/day), and the rats in the CoQ10-BPA group received CoQ10 (10 mg/kg/day) followed by BPA (100 mg/kg/day) 1 h later. The treatments were administered by oral gavage for 14 days. Results showed that the seminiferous tubule diameters (STDs) and seminiferous epithelium heights (SEHs) at stages VII-VIII and XII-XIV, number of undifferentiated embryonic cell transcription factor-1 (UTF-1) positive cells per tubule, UTF-1 positive tubules (%), plasma glutathione (GSH), and serum superoxide dismutase activities, testicular GSH activity and sperm viability (%) decreased whereas the number of terminal dUTP nick end labeling (TUNEL) positive cells per tubule, TUNEL positive tubules (%), testicular and serum malondialdehyde (MDA) levels, and the rate of mid-piece sperm abnormality increased in the BPA administered group. However, while the STDs at stages VII-VIII and XII-XIV, SEHs at stages VII-VIII, plasma GSH, and serum SOD activities increased, serum MDA level decreased in the CoQ10-BPA group. In conclusion, these results suggest a protective effect of CoQ10 against BPA-induced testicular toxicity in rats.
Collapse
Affiliation(s)
- Özay Güleş
- 1 Department of Histology and Embryology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydin, Turkey
| | - Şadiye Kum
- 1 Department of Histology and Embryology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydin, Turkey
| | - Mustafa Yıldız
- 2 Department of Occupational Health and Safety, Çan School of Applied Sciences, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Murat Boyacıoğlu
- 3 Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydin, Turkey
| | - Ejaz Ahmad
- 4 Department of Clinical Sciences, Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Zahid Naseer
- 5 Department of Clinical Studies, Faculty of Veterinary and Animal Sciences, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Ülker Eren
- 1 Department of Histology and Embryology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydin, Turkey
| |
Collapse
|
24
|
Arita Y, Park HJ, Cantillon A, Getahun D, Menon R, Peltier MR. Effect of bisphenol-A (BPA) on placental biomarkers for inflammation, neurodevelopment and oxidative stress. J Perinat Med 2019; 47:741-749. [PMID: 31339859 DOI: 10.1515/jpm-2019-0045] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 06/17/2019] [Indexed: 12/21/2022]
Abstract
Background Bisphenol-A (BPA) is a widespread pollutant whose effects on pregnant women are poorly understood. Therefore, we investigated the effects of BPA on basal and bacteria-stimulated production of proinflammatory cytokines [interleukin (IL)-1β, tumor necrosis factor-α (TNF-α) and IL-6], anti-inflammatory mediators [soluble glycoprotein 130 (sgp) 130, heme oxidase-1 (HO-1) and IL-10] and biomarkers for neurodevelopment [brain-derived neurotrophic factor (BDNF)], and oxidative stress [8-isoprostane (8-IsoP)] by the placenta. Methods Placental explant cultures were treated with BPA (0-10,000 nM) in the presence or absence of 107 colony-forming unit (CFU)/mL heat-killed Escherichia coli for 24 h. Biomarker concentrations in conditioned medium were quantified by the enzyme-linked immunosorbent assay (ELISA). Results Under basal conditions, IL-1β and IL-6 production was enhanced by BPA in a dose-dependent manner. Sgp130, a soluble receptor that reduces IL-6 bioactivity, was suppressed by BPA at 1000-10,000 nM. BPA also enhanced BDNF production at 1000 and 10,000 nM, and 8-IsoP expression at 10 and 100 nM. For bacteria-treated cultures, BPA increased IL-6 production at 100 nM and reduced sgp130 at 1000 nM but had no effect on IL-1β, TNF-α, BDNF, HO-1, 8-IsoP or IL-10 production. Conclusion BPA may increase placental inflammation by promoting IL-1β and IL-6 but inhibiting sgp130. It may also disrupt oxidative balance and neurodevelopment by increasing 8-IsoP and BDNF production.
Collapse
Affiliation(s)
- Yuko Arita
- Department of Foundations of Medicine, NYU-Long Island School of Medicine, Mineola, NY, USA
| | - Hyeon Jeong Park
- Department of Foundations of Medicine, NYU-Long Island School of Medicine, Mineola, NY, USA
| | - Aisling Cantillon
- Department of Foundations of Medicine, NYU-Long Island School of Medicine, Mineola, NY, USA
| | - Darios Getahun
- Department of Research and Evaluation, Kaiser-Permanente Southern California, Pasadena, CA, USA
| | - Ramkumar Menon
- Department of Obstetrics and Gynecology, UTMB-Galveston, Galveston, TX, USA
| | - Morgan R Peltier
- Department of Foundations of Medicine, NYU-Long Island School of Medicine, Mineola, NY, USA.,Department of Obstetrics and Gynecology; NYU-Long Island School of Medicine, Mineola, NY, USA.,Department of Obstetric and Gynecology, NYU-Winthrop Hospital, 101 Mineola Blvd Rm. 4-040, Mineola, NY, USA
| |
Collapse
|
25
|
Veissi M, Jafarirad S, Ahangarpour A, Mohaghegh SM, Malehi AS. Co-exposure to endocrine disruptors: effect of bisphenol A and soy extract on glucose homeostasis and related metabolic disorders in male mice. Endocr Regul 2018; 52:76-84. [PMID: 29715189 DOI: 10.2478/enr-2018-0009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Bisphenol A (BPA) is a xenoestrogen, which is commonly used as a monomer of polycarbonate plastics food containers and epoxy resins. Little is known about the interaction effects between xeno- and phyto- estrogens on glucose homeostasis or other metabolic disorders. The aim of this study was to examine effects of individual or combined exposure to low doses of BPA and soy extract on glucose metabolism in mice with the goal to establish its potential mechanisms. METHODS Fifty-four male mice were randomly divided into six groups. Mice were treated with soy extract at 60 or 150 mg/kg by daily gavage with or without subcutaneously administration of BPA (100 μg/kg/day) for four weeks at the same time, while the control group received a vehicle. Serum levels of fasting glucose, insulin, adiponectin, testosterone, malondialdehyde (MDA), and total antioxidant capacity (TAC) were measured. Homeostatic model assessment-β cell function (HOMA-β) index was also determined. RESULTS BPA exposure induced hyperglycemia and significantly reduced HOMA-β, serum levels of insulin, adiponectin, testosterone, and TAC and noticeably enhanced MDA in BPA group compared to control one. While treatment with soy extract in high dose (150 mg/kg) significantly decreased the levels of fasting blood glucose and MDA and notably improved the serum levels of insulin, HOMA-β, and TAC compared to BPA group. CONCLUSION Soy extract may protect against some adverse effects of BPA. These findings represent the first report suggesting a potential effect between soy extract and BPA in low doses, however, further studies are needed to confirm these results.
Collapse
|
26
|
Nguyen TMD, Klett D, Combarnous Y. Estrogenic Compounds or Adiponectin Inhibit Cyclic AMP Response to Human Luteinizing Hormone in Mouse Leydig Tumor Cells. Biology (Basel) 2019; 8:E45. [PMID: 31212720 DOI: 10.3390/biology8020045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/03/2019] [Accepted: 06/10/2019] [Indexed: 11/17/2022]
Abstract
Mouse Leydig Tumor cells (mLTC), transiently expressing cAMP-dependent luciferase, were used to study the influence of sexual steroids and of adiponectin (ADPN) on the cAMP response to luteinizing hormones (LH). While testosterone and progesterone had no significant effect, several molecules with estrogenic activity (17β-estradiol, ethynylestradiol, and bisphenol A) provoked a decrease in intracellular cyclic AMP accumulation under 0.7 nM human LH stimulation. Adiponectin exhibited a bimodal dose-effect on LH response: synergistic between 2–125 ng/mL and inhibitory between 0.5–5 µg/mL. In brief, our data indicate that estrogens and ADPN separately exert rapid (<1 h) inhibitory and/or synergistic effects on cAMP response to LH in mLTC-1 cells. As the inhibitory effect of each estrogenic molecule was observed after only 1-h preincubation, it might be mediated through the G protein-coupled estrogen receptor (GPER) membrane receptor, but this remains to be demonstrated. The synergistic effect with low concentrations of ADPN with human Luteinizing Hormone (hLH) was observed with both fresh and frozen/thawed ADPN. In contrast, the inhibitory effect with high concentrations of ADPN was lost with frozen/thawed ADPN, suggesting deterioration of its polymeric structure.
Collapse
|
27
|
Sèdes L, Desdoits-Lethimonier C, Rouaisnel B, Holota H, Thirouard L, Lesne L, Damon-Soubeyrand C, Martinot E, Saru JP, Mazaud-Guittot S, Caira F, Beaudoin C, Jégou B, Volle DH. Crosstalk between BPA and FXRα Signaling Pathways Lead to Alterations of Undifferentiated Germ Cell Homeostasis and Male Fertility Disorders. Stem Cell Reports 2018; 11:944-958. [PMID: 30245210 PMCID: PMC6178796 DOI: 10.1016/j.stemcr.2018.08.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 08/27/2018] [Accepted: 08/27/2018] [Indexed: 12/20/2022] Open
Abstract
Several studies have reported an association between the farnesoid X receptor alpha (FXRα) and estrogenic signaling pathways. Fxrα could thus be involved in the reprotoxic effects of endocrine disruptors such as bisphenol-A (BPA). To test this hypothesis, mice were exposed to BPA and/or stigmasterol (S), an FXRα antagonist. Following the exposure to both molecules, wild-type animals showed impaired fertility and lower sperm cell production associated with the alteration of the establishment and maintenance of the undifferentiated germ cell pool. The crosstalk between BPA and FXRα is further supported by the lower impact of BPA in mice genetically ablated for Fxrα and the fact that BPA counteracted the effects of FXRα agonists. These effects might result from the downregulation of Fxrα expression following BPA exposure. BPA and S act additively in human testis. Our data demonstrate that FXRα activity modulates the impact of BPA on male gonads and on undifferentiated germ cell population. BPA and S exposures synergistically induce male fertility disorders BPA regulates Fxr expression BPA and S act additively in human testis
Collapse
Affiliation(s)
- Lauriane Sèdes
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Christèle Desdoits-Lethimonier
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Betty Rouaisnel
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Hélène Holota
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Laura Thirouard
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Laurianne Lesne
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Christelle Damon-Soubeyrand
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Emmanuelle Martinot
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Jean-Paul Saru
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Séverine Mazaud-Guittot
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Françoise Caira
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Claude Beaudoin
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Bernard Jégou
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - David H Volle
- INSERM U 1103, Université Clermont Auvergne, CNRS, UMR 6293, GReD, Laboratoire Génétique, Reproduction & Développement, 28 Place Henri-Dunant, 63000 Clermont-Ferrand, France.
| |
Collapse
|
28
|
İnce T, Balcı A, Yalçın SS, Özkemahlı G, Erkekoglu P, Kocer-Gumusel B, Yurdakök K. Urinary bisphenol-A levels in children with type 1 diabetes mellitus. J Pediatr Endocrinol Metab 2018; 31:829-836. [PMID: 29975667 DOI: 10.1515/jpem-2018-0141] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 06/11/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Bisphenol-A (BPA) is one of the most abundantly produced chemicals globally. Concerns have been raised about BPA's possible role in the pathogenesis of type 1 diabetes mellitus (T1DM). The main aim of the current study was to evaluate the possible association between BPA exposure and T1DM. The second aim was to investigate children's possible BPA exposure routes in Turkey. METHODS A total of 100 children aged between 5 and 18 years including 50 children with T1DM and 50 healthy children were included. Urinary BPA levels of all children were measured using high-performance liquid chromatography. Mothers of children enrolled in the study were also requested to complete a survey that included questions on the sociodemographic characteristics, medical history and possible BPA exposure routes of their children. RESULTS In the T1DM group, urinary BPA levels were slightly higher compared to the control group, but this difference was not significant (p=0.510). However, there was an inverse relationship between current urinary BPA levels and birth weight. It was found that the use of plastic kettles and the consumption of dairy products in plastic boxes significantly increased the urinary BPA concentrations in all subjects. CONCLUSIONS Although there was no significant association between urinary BPA levels and T1DM, we found an inverse relationship between current urinary BPA levels and birth weight. This finding might be important for prenatal exposure, and further prospective research must be conducted. Also, the use of plastic kettles, which has not been mentioned much in the literature before, was found to be an important exposure route for BPA.
Collapse
Affiliation(s)
- Tolga İnce
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Social Pediatrics Unit, İnciraltı Mahallesi Mithatpaşa, Street No: 56, Balçova, 35340 İzmir, Turkey
| | - Aylin Balcı
- Hacettepe University, Faculty of Pharmacy, Department of Toxicology, Sihhiye, Ankara, Turkey
| | - Siddika Songül Yalçın
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Sihhiye, Ankara, Turkey
| | - Gizem Özkemahlı
- Hacettepe University, Faculty of Pharmacy, Department of Toxicology, Sihhiye, Ankara, Turkey
- Erzincan University, Faculty of Pharmacy, Department of Toxicology, Erzincan, Turkey
| | - Pinar Erkekoglu
- Hacettepe University, Faculty of Pharmacy, Department of Toxicology, Sihhiye, Ankara, Turkey
| | - Belma Kocer-Gumusel
- Hacettepe University, Faculty of Pharmacy, Department of Toxicology, Sihhiye, Ankara, Turkey
- Lokman Hekim University, Faculty of Pharmacy, Department of Toxicology, Çankaya/Ankara, Turkey
| | - Kadriye Yurdakök
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Sihhiye, Ankara, Turkey
| |
Collapse
|
29
|
Skibińska I, Jendraszak M, Borysiak K, Jędrzejczak P, Kotwicka M. 17β-estradiol and xenoestrogens reveal synergistic effect on mitochondria of human sperm. Ginekol Pol 2018; 87:360-6. [PMID: 27304652 DOI: 10.5603/gp.2016.0005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 06/02/2016] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES The aim of the study was to investigate the influence of 17β-estradiol (main endogenous estrogen) and selected xenoestrogens (genistein, bisphenol-A), individually and in combination, on the mitochondrial function of human sper-matozoa. In natural environment, human beings are exposed to multiple xenoestrogens, so their impact is combined with endogenous steroids. MATERIAL AND METHODS The effects of ligands on human spermatozoa were assessed regarding the following phenomena: spermatozoa vitality (propidium iodide staining), phosphatidylserine membrane translocation (staining with annexin V marked with fluorescein), mitochondrial membrane potential (using JC-1 fluorochrome), and production of superoxide anion in mitochondria (using MitoSOX RED dye). RESULTS Two-hour incubation of spermatozoa with 17β-estradiol, genistein, and bisphenol-A neither altered cell vitality nor stimulated phosphatidylserine membrane translocation. Incubation of spermatozoa with 17β-estradiol or bisphenol-A sepa-rately, as well as incubation with the three ligands simultaneously, resulted in altered mitochondrial membrane potential. Spermatozoa incubation with the three ligands significantly increased the mitochondrial superoxide anion level. CONCLUSIONS It seems safe to conclude that human spermatozoa mitochondria are target cell structures for both, 17β-estradiol and xenoestrogens. The reaction to the 17β-estradiol and xenoestrogens mixture suggests a synergistic mechanism of action. Xenoestrogens may increase the sensitivity of spermatozoa to 17β-estradiol.
Collapse
Affiliation(s)
| | | | | | | | - Małgorzata Kotwicka
- Department of Cell Biology, Poznan University of Medical Sciences, Poznan, Poland.
| |
Collapse
|
30
|
van der Meer TP, Artacho-Cordón F, Swaab DF, Struik D, Makris KC, Wolffenbuttel BHR, Frederiksen H, van Vliet-Ostaptchouk JV. Distribution of Non-Persistent Endocrine Disruptors in Two Different Regions of the Human Brain. Int J Environ Res Public Health 2017; 14:ijerph14091059. [PMID: 28902174 PMCID: PMC5615596 DOI: 10.3390/ijerph14091059] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 09/07/2017] [Accepted: 09/11/2017] [Indexed: 12/19/2022]
Abstract
Non-persistent endocrine disrupting chemicals (npEDCs) can affect multiple organs and systems in the body. Whether npEDCs can accumulate in the human brain is largely unknown. The major aim of this pilot study was to examine the presence of environmental phenols and parabens in two distinct brain regions: the hypothalamus and white-matter tissue. In addition, a potential association between these npEDCs concentrations and obesity was investigated. Post-mortem brain material was obtained from 24 individuals, made up of 12 obese and 12 normal-weight subjects (defined as body mass index (BMI) > 30 and BMI < 25 kg/m², respectively). Nine phenols and seven parabens were measured by isotope dilution TurboFlow-LC-MS/MS. In the hypothalamus, seven suspect npEDCs (bisphenol A, triclosan, triclocarban and methyl-, ethyl-, n-propyl-, and benzyl paraben) were detected, while five npEDCs (bisphenol A, benzophenone-3, triclocarban, methyl-, and n-propyl paraben) were found in the white-matter brain tissue. We observed higher levels of methylparaben (MeP) in the hypothalamic tissue of obese subjects as compared to controls (p = 0.008). Our findings indicate that some suspected npEDCs are able to cross the blood-brain barrier. Whether the presence of npEDCs can adversely affect brain function and to which extent the detected concentrations are physiologically relevant needs to be further investigated.
Collapse
Affiliation(s)
- Thomas P van der Meer
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.
| | | | - Dick F Swaab
- Netherlands Institute for Neuroscience, an Institute of the Royal Netherlands Academy of Arts and Sciences, 1105 BA Amsterdam, The Netherlands.
| | - Dicky Struik
- Section of Molecular Metabolism and Nutrition, Department of Pediatrics, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.
| | - Konstantinos C Makris
- Cyprus International Institute for Environmental and Public Health, Cyprus University of Technology, Limassol 3041, Cyprus.
| | - Bruce H R Wolffenbuttel
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.
| | - Hanne Frederiksen
- Department of Growth and Reproduction, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, DK-2100 Copenhagen, Denmark.
| | - Jana V van Vliet-Ostaptchouk
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.
| |
Collapse
|
31
|
Abstract
This reminiscing review article is an account of the author's fascination and involvements with mass spectrometry from the perspective of an organic chemist with an interest in natural product chemistry. It covers a period from 1961 through the mid 1990s as mass spectrometry evolved form a novelty technique to become a most widely used analytical technique. Following a brief synopsis of my pathway to mass spectrometry, my research efforts in this field are presented with a focus mainly on evolving principles and technologies which I had personal involvements with. To provide historical perspectives, discussions of these developments are accompanied by brief outlines of the relevant state-of-the-art, shedding light on the technical and conceptual challenges encountered during those early days in mass spectrometry. Examples are presented of my involvements with basic and applied research in mass spectrometry during graduate studies at Stanford University and close to three decade tenure in pharmaceutical research at Syntex Research. My basic research interests focused mainly on principles of electron ionization induced fragmentation mechanisms, with an emphasis on steroids and other model compounds. Extensive deuterium labeling evidence was used to determine the fragmentation mechanisms of the diagnostically significant ions in the spectra of numerous model compounds, uncovering examples of wide-ranging hydrogen transfers, skeletal rearrangements, methyl and phenyl migrations, stereoselective fragmentations and low and high energy fragmentation processes. Depiction of the industrial research phase of my career includes comments on the pivotal role mass spectrometry played on advancing modern pharmaceutical research. Examples are presented of involvements with instrumental developments and a few select cases of applied research, including studies of bile mechanisms in vertebrates, identification of bisphenol-A leaching from sterilized polycarbonate containers, high sensitivity TCDD analyses and other projects. Reflecting on my services for the mass spectrometry society, involvements with the co-founding and 12 year chairing of the Asilomar Conference on Mass Spectrometry and founding of the Bay Area Mass Spectrometry regional MS discussion group, as part of my services for the mass spectrometry community, are presented in some detail. © 2016 Wiley Periodicals, Inc. Mass Spec Rev 36:520-542, 2017.
Collapse
|
32
|
Wang C, Qi S, Liu C, Yang A, Fu W, Quan C, Duan P, Yu T, Yang K. Mitochondrial Dysfunction and Ca 2+ Overload in Injured Sertoli Cells Exposed to Bisphenol A. Environ Toxicol 2017; 32:823-831. [PMID: 27189055 DOI: 10.1002/tox.22282] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 04/08/2016] [Accepted: 04/17/2016] [Indexed: 06/05/2023]
Abstract
Bisphenol-A (BPA) is well known as one of endocrine-disrupting chemicals and testicular toxicant. In this present study, we determined whether BPA caused cell injury through mitochondria impairment and ROS overproduction. The cellular ROS production, mitochondrial ATP synthetase activity and Ca2+ concentration were examined. We have found BPA caused the cellular mitochondria dysfunction and followed by cell death in Sertoli cells. Moreover cytoplasm Ca2+ overload was also involved. Furthermore, pretreatment with N-acetyl-L-cysteine (NAC) could alleviate the damage by causing a remarkable decrease in ROS production and mitochondrial dysfunction. Collectively, our results showed that BPA exposure induced Sertoli cell apoptosis because of excessive ROS generation and mitochondrial dysfunction. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 823-831, 2017.
Collapse
Affiliation(s)
- Chengmin Wang
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
- Department of Environmental Health, School of Public Health, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Suqin Qi
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
- Wuhan Hospital for the Prevention and Treatment of Occupational Disease, Wuhan, 430015, People's Republic of China
| | - Changjiang Liu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Aixia Yang
- Center of Experimental Medicine, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
| | - Wenjuan Fu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Chao Quan
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Peng Duan
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Tingting Yu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| | - Kedi Yang
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
| |
Collapse
|
33
|
Oz F, Seyyar E. Formation of Heterocyclic Aromatic Amines and Migration Level of Bisphenol-A in Sous-Vide-Cooked Trout Fillets at Different Cooking Temperatures and Cooking Levels. J Agric Food Chem 2016; 64:3070-3082. [PMID: 27029998 DOI: 10.1021/acs.jafc.5b05716] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The effects of different cooking temperatures (65, 75, and 85 °C) and cooking levels (medium and well) on some quality properties, the formation of heterocyclic aromatic amines (HCAs), and the migration level of bisphenol-A (BPA) in trout fillets cooked by sous-vide were investigated. As a result, as expected, cooking caused a reduction in water content of the samples, whereas pH, TBARS, L*, and b* values increased. Cooking loss values ranged between 14.78 and 20.51%. Whereas IQ, MeIQ, 7,8-DiMeIQx, 4,8-DiMeIQx, PhIP, AαC and MeAαC could not be detected in the analyzed samples, varying levels of IQx (up to 0.16 ng/g) and MeIQx (up to 5.66 ng/g) were detected. It was determined that total HCA amounts ranged between 1.28 and 5.75 ng/g, and all or a big part of the total HCAs belonged to MeIQx. In addition, the migration level of BPA in sous-vide-cooked samples ranged between 4.93 and 27.11 ng/g.
Collapse
Affiliation(s)
- Fatih Oz
- Department of Food Engineering, Faculty of Agriculture, Atatürk University , 25240 Erzurum, Turkey
| | - Esra Seyyar
- Department of Food Engineering, Faculty of Agriculture, Atatürk University , 25240 Erzurum, Turkey
| |
Collapse
|
34
|
Beydoun HA, Beydoun MA, Jeng HA, Zonderman AB, Eid SM. Bisphenol-A and Sleep Adequacy among Adults in the National Health and Nutrition Examination Surveys. Sleep 2016; 39:467-76. [PMID: 26446109 DOI: 10.5665/sleep.5466] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 08/14/2015] [Indexed: 12/14/2022] Open
Abstract
STUDY OBJECTIVES To evaluate bisphenol-A (BPA) level and its relationship to sleep adequacy in a nationally representative sample of U.S. adults. METHODS A population-based cross-sectional study was conducted using 2005-2010 National Health and Nutrition Examination Survey whereby data were collected using in-person interviews, physical examination and laboratory testing. BPA level was measured in urine samples and analyzed as loge-transformed variable and in quartiles (< 0.9 ng/mL; 0.9 to < 1.9 ng/mL; 1.9 to < 3.7 ng/mL; 3.7+ ng/mL). Sleep adequacy was operationalized with three questions: "How much sleep do you usually get at night on weekdays or workdays?", "Have you ever told a doctor or other health professionals that you have trouble sleeping?" and "Have you ever been told by a doctor or other health professional that you have a sleep disorder?" Sleep duration was further categorized as (< 6 h, ≥ 6 h); (< 7 h, 7-8 h, > 8 h); (< 5 h, 5-6 h, 7-8 h, ≥ 9 h). Linear, binary, and ordinal logistic regression models were constructed. RESULTS Loge-transformed BPA level was inversely related to sleep duration defined, in hours, as a continuous variable, a dichotomous variable (≥ 6, < 6), or an ordinal variable (≥ 9, 7-8, 5-6, < 5), after adjustment for confounders. Help-seeking behavior for sleep problems and diagnosis with sleep disorders were not significantly associated with loge-transformed BPA level in fully adjusted models. CONCLUSIONS Loge-transformed BPA level may be associated with fewer hours of sleep among U.S. adults, with implications for prevention. Further research involving diverse populations are needed to confirm these study findings.
Collapse
Affiliation(s)
- Hind A Beydoun
- Graduate Program in Public Health, Eastern Virginia Medical School, Norfolk, VA
| | - May A Beydoun
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging Intramural Research Program, Baltimore, MD
| | - Hueiwang Anna Jeng
- Department of Community & Environmental Health, Old Dominion University, Norfolk, VA
| | - Alan B Zonderman
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging Intramural Research Program, Baltimore, MD
| | - Shaker M Eid
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| |
Collapse
|
35
|
Huo X, Chen D, He Y, Zhu W, Zhou W, Zhang J. Bisphenol-A and Female Infertility: A Possible Role of Gene-Environment Interactions. Int J Environ Res Public Health 2015; 12:11101-16. [PMID: 26371021 PMCID: PMC4586663 DOI: 10.3390/ijerph120911101] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 08/28/2015] [Accepted: 08/31/2015] [Indexed: 02/07/2023]
Abstract
Background: Bisphenol-A (BPA) is widely used and ubiquitous in the environment. Animal studies indicate that BPA affects reproduction, however, the gene-environment interaction mechanism(s) involved in this association remains unclear. We performed a literature review to summarize the evidence on this topic. Methods: A comprehensive search was conducted in PubMed using as keywords BPA, gene, infertility and female reproduction. Full-text articles in both human and animals published in English prior to December 2014 were selected. Results: Evidence shows that BPA can interfere with endocrine function of hypothalamic-pituitary axis, such as by changing gonadotropin-releasing hormones (GnRH) secretion in hypothalamus and promoting pituitary proliferation. Such actions affect puberty, ovulation and may even result in infertility. Ovary, uterus and other reproductive organs are also targets of BPA. BPA exposure impairs the structure and functions of female reproductive system in different times of life cycle and may contribute to infertility. Both epidemiological and experimental evidences demonstrate that BPA affects reproduction-related gene expression and epigenetic modification that are closely associated with infertility. The detrimental effects on reproduction may be lifelong and transgenerational. Conclusions: Evidence on gene-environment interactions, especially from human studies, is still limited. Further research on this topic is warranted.
Collapse
Affiliation(s)
- Xiaona Huo
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kong Jiang Road, Shanghai 200092, China
| | - Dan Chen
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kong Jiang Road, Shanghai 200092, China.
| | - Yonghua He
- School of Public Health, Guilin Medical University, Guilin 541004, China.
| | - Wenting Zhu
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kong Jiang Road, Shanghai 200092, China.
- School of Public Health, Shanghai Jiao Tong University, Shanghai 200025, China.
| | - Wei Zhou
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kong Jiang Road, Shanghai 200092, China.
| | - Jun Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 1665 Kong Jiang Road, Shanghai 200092, China.
- School of Public Health, Guilin Medical University, Guilin 541004, China.
- School of Public Health, Shanghai Jiao Tong University, Shanghai 200025, China.
| |
Collapse
|
36
|
Wang C, Fu W, Quan C, Yan M, Liu C, Qi S, Yang K. The role of Pten/Akt signaling pathway involved in BPA-induced apoptosis of rat Sertoli cells. Environ Toxicol 2015; 30:793-802. [PMID: 24464975 DOI: 10.1002/tox.21958] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 12/24/2013] [Accepted: 01/08/2014] [Indexed: 06/03/2023]
Abstract
Bisphenol-A (BPA), one of endocrine-disrupting chemicals, is a male reproductive toxicant. Previous studies have revealed the direct cytotoxicity of BPA in many cultured cells, such as mitotic aneuploidy in embryonic cells and somatic cells, and apoptosis in neurons and testicular Sertoli cells. To understand the action of BPA and assess its risk, the Pten/Akt pathway was investigated in cultured Sertoli cells to elucidate the mechanism of the reproductive effects of BPA. The results showed that over 50 μM BPA treatment could decrease the viability of Sertoli cells and cause more apoptosis. In addition, BPA could induce the increase in mRNA levels of Pten and Akt. The protein level of Pten was increased; however, the protein levels of phospho-Akt and procaspase-3 were decreased after BPA exposure. Taken together, observed results suggested that the Pten/Akt pathway might be involved in the apoptotic effects of BPA on Sertoli cells.
Collapse
Affiliation(s)
- Chengmin Wang
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, People's Republic of China
| | - Wenjuan Fu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, People's Republic of China
| | - Chao Quan
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, People's Republic of China
| | - Maosheng Yan
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, People's Republic of China
| | - Changjiang Liu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, People's Republic of China
| | - Suqin Qi
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, People's Republic of China
| | - Kedi Yang
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, People's Republic of China
| |
Collapse
|
37
|
Campos MS, Galvão ALV, Rodríguez DAO, Biancardi MF, Marques MR, Vilamaior PSL, Santos FCA, Taboga SR. Prepubertal exposure to bisphenol-A induces ERα upregulation and hyperplasia in adult gerbil female prostate. Int J Exp Pathol 2015; 96:188-95. [PMID: 26098999 DOI: 10.1111/iep.12120] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 01/19/2015] [Indexed: 12/16/2022] Open
Abstract
Prostate physiology is highly dependent on oestrogenic and androgenic homeostasis. Interferences in this equilibrium, especially in early periods of life, may disrupt the prostate and increase the susceptibility to the development of diseases with ageing. Taking this into account, and considering the increase of environmental chemicals with endocrine-disrupting potential such as bisphenol-A (BPA), this study aimed to evaluate the prostates of adult female gerbils exposed to BPA and BPA plus testosterone from pubertal to adult periods. Morphological, stereological and chemical analyses revealed that long-term BPA exposure, even in environmental dosages, increases the proliferative status of the prostate, increases the number of ERα-positive stromal cells and elicits the development of prostatic hyperplasia in adult female gerbils. Moreover, we also observed that the association with testosterone did not increase the proliferative status of the gland, which shows that low levels of BPA are enough to cause an oestrogenic disruption of the prostate in young adults. This evidence suggests that this oestrogenic endocrine disruptor may increase the susceptibility to prostatic disorders with ageing.
Collapse
Affiliation(s)
- Mônica S Campos
- Department of Biology, Laboratory of Microscopy and Microanalysis, University Estadual Paulista - UNESP, São José do Rio Preto, Brazil
| | - André L V Galvão
- Department of Histology, Embriology and Cell Biology, Federal University of Goiás, Goiânia, Brazil
| | - Daniel A O Rodríguez
- Department of Histology, Embriology and Cell Biology, Federal University of Goiás, Goiânia, Brazil
| | - Manoel F Biancardi
- Department of Structural and Functional Biology, State University of Campinas, Campinas, Brazil
| | - Mara R Marques
- Department of Histology, Embriology and Cell Biology, Federal University of Goiás, Goiânia, Brazil
| | - Patrícia S L Vilamaior
- Department of Biology, Laboratory of Microscopy and Microanalysis, University Estadual Paulista - UNESP, São José do Rio Preto, Brazil
| | - Fernanda C A Santos
- Department of Histology, Embriology and Cell Biology, Federal University of Goiás, Goiânia, Brazil
| | - Sebastião R Taboga
- Department of Biology, Laboratory of Microscopy and Microanalysis, University Estadual Paulista - UNESP, São José do Rio Preto, Brazil.,Department of Structural and Functional Biology, State University of Campinas, Campinas, Brazil
| |
Collapse
|
38
|
Abstract
Obesity and type 2 diabetes mellitus (T2DM) are the most common metabolic disorders, with prevalence rates that are reaching epidemic proportions. Both are complex conditions affecting virtually all ages and with serious health consequences. The underlying cause of the problem is still puzzling, but both genetic and environmental factors including unhealthy diet, sedentary lifestyle, or the exposure to some environmental endocrine disrupting chemicals (EDCs) are thought to have a causal influence. In addition, the impact of early environment has recently emerged as an important factor responsible for the increased propensity to develop adult-onset metabolic disease. Suboptimal maternal nutrition during critical windows in fetal development is the most commonly studied factor affecting early programming of obesity and T2DM. In recent years, increasing experimental evidence shows that exposure to EDCs could also account for this phenomenon. In the present review, we will overview the most relevant findings that confirm the critical role of bisphenol-A, one of the most widespread EDCs, in the development of metabolic disorders.
Collapse
Affiliation(s)
- Paloma Alonso-Magdalena
- Departamento de Biología Aplicada, Universidad Miguel Hernández de Elche, Elche, Alicante, Spain ; CIBER de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, Universidad Miguel Hernández de Elche, Elche, Alicante, Spain
| | - Iván Quesada
- Departamento de Biología Aplicada, Universidad Miguel Hernández de Elche, Elche, Alicante, Spain ; CIBER de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, Universidad Miguel Hernández de Elche, Elche, Alicante, Spain ; Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Elche, Alicante, Spain
| | - Ángel Nadal
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, Universidad Miguel Hernández de Elche, Elche, Alicante, Spain ; Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Elche, Alicante, Spain
| |
Collapse
|
39
|
Kelly EA, Opanashuk LA, Majewska AK. The effects of postnatal exposure to low-dose bisphenol-A on activity-dependent plasticity in the mouse sensory cortex. Front Neuroanat 2014; 8:117. [PMID: 25374513 PMCID: PMC4205826 DOI: 10.3389/fnana.2014.00117] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 10/02/2014] [Indexed: 01/03/2023] Open
Abstract
Bisphenol-A (BPA) is a monomer used in the production of polycarbonate plastics, epoxies and resins and is present in many common household objects ranging from water bottles, can linings, baby bottles, and dental resins. BPA exposure has been linked to numerous negative health effects throughout the body, although the mechanisms of BPA action on the developing brain are still poorly understood. In this study, we sought to investigate whether low dose BPA exposure during a developmental phase when brain connectivity is being organized can cause long-term deleterious effects on brain function and plasticity that outlast the BPA exposure. Lactating dams were orally exposed to 25 μg/kg/day of BPA (one half the U.S. Environmental Protection Agency's 50 μg/kg/day rodent dose reference) or vehicle alone from postnatal day (P)5 to P21. Pups exposed to BPA in their mother's milk exhibited deficits in activity-dependent plasticity in the visual cortex during the visual critical period (P28). To determine the possible mechanisms underlying BPA action, we used immunohistochemistry to examine histological markers known to impact cortical maturity and developmental plasticity and quantified cortical dendritic spine density, morphology, and dynamics. While we saw no changes in parvalbumin neuron density, myelin basic protein expression or microglial density in BPA-exposed animals, we observed increases in spine density on apical dendrites in cortical layer five neurons but no significant alterations in other morphological parameters. Taken together our results suggest that exposure to very low levels of BPA during a critical period of brain development can have profound consequences for the normal wiring of sensory circuits and their plasticity later in life.
Collapse
Affiliation(s)
- Emily A Kelly
- Department of Neurobiology and Anatomy, Center for Visual Science, School of Medicine and Dentistry, University of Rochester Rochester, NY, USA
| | - Lisa A Opanashuk
- Department of Environmental Medicine, University of Rochester Rochester, NY, USA
| | - Ania K Majewska
- Department of Neurobiology and Anatomy, Center for Visual Science, School of Medicine and Dentistry, University of Rochester Rochester, NY, USA
| |
Collapse
|
40
|
Dominguez GA, Bisesi JH, Kroll KJ, Denslow ND, Sabo-Attwood T. Control of transcriptional repression of the vitellogenin receptor gene in largemouth bass (Micropterus salmoides) by select estrogen receptors isotypes. Toxicol Sci 2014; 141:423-31. [PMID: 25061109 DOI: 10.1093/toxsci/kfu145] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The vitellogenin receptor (Vtgr) plays an important role in fish reproduction. This receptor functions to incorporate vitellogenin (Vtg), a macromolecule synthesized and released from the liver in the bloodstream, into oocytes where it is processed into yolk. Although studies have focused on the functional role of Vtgr in fish, the mechanistic control of this gene is still unexplored. Here we report the identification and analysis of the first piscine 5' regulatory region of the vtgr gene which was cloned from largemouth bass (Micropterus salmoides). Using this putative promoter sequence, we investigated a role for hormones, including insulin and 17β-estradiol (E2), in transcriptional regulation through cell-based reporter assays. No effect of insulin was observed, however, E2 was able to repress transcriptional activity of the vtgr promoter through select estrogen receptor subtypes, Esr1 and Esr2a but not Esr2b. Electrophoretic mobility shift assay demonstrated that Esr1 likely interacts with the vtgr promoter region through half ERE and/or SP1 sites, in part. Finally we also show that ethinylestradiol (EE2), but not bisphenol-A (BPA), represses promoter activity similarly to E2. These results reveal for the first time that the Esr1 isoform may play an inhibitory role in the expression of LMB vtgr mRNA under the influence of E2, and potent estrogens such as EE2. In addition, this new evidence suggests that vtgr may be a target of select endocrine disrupting compounds through environmental exposures.
Collapse
Affiliation(s)
- Gustavo A Dominguez
- Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina 29208 Department of Environmental and Global Health, University of Florida, Gainesville, Florida 32610
| | - Joseph H Bisesi
- Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina 29208 Department of Environmental and Global Health, University of Florida, Gainesville, Florida 32610 Department of Physiological Sciences, University of Florida, Gainesville, Florida 32611
| | - Kevin J Kroll
- Department of Physiological Sciences, University of Florida, Gainesville, Florida 32611
| | - Nancy D Denslow
- Department of Physiological Sciences, University of Florida, Gainesville, Florida 32611
| | - Tara Sabo-Attwood
- Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina 29208 Department of Environmental and Global Health, University of Florida, Gainesville, Florida 32610 Department of Physiological Sciences, University of Florida, Gainesville, Florida 32611
| |
Collapse
|
41
|
Zhang T, Li L, Qin XS, Zhou Y, Zhang XF, Wang LQ, De Felici M, Chen H, Qin GQ, Shen W. Di-(2-ethylhexyl) phthalate and bisphenol A exposure impairs mouse primordial follicle assembly in vitro. Environ Mol Mutagen 2014; 55:343-353. [PMID: 24458533 DOI: 10.1002/em.21847] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 11/27/2013] [Accepted: 11/27/2013] [Indexed: 06/03/2023]
Abstract
Bisphenol-A (BPA) and diethylhexyl phthalate (DEHP) are estrogenic compounds widely used in commercial plastic products. Previous studies have shown that exposure to such compounds have adverse effects on various aspects of mammalian reproduction including folliculogenesis. The objective of this study was to examine the effects of BPA and DEHP exposure on primordial follicle formation. We found that germ cell nest breakdown and primordial follicle assembly were significantly reduced when newborn mouse ovaries were exposed to 10 or 100 μM BPA and DEHP in vitro. Moreover, BPA and DEHP exposure increased the number of TUNEL positive oocytes and the mRNA level of the pro-apoptotic gene Bax in oocytes. These effects were associated with decreased expression of oocyte specific genes such as LIM homeobox 8 (Lhx8), factor in the germline alpha (Figla), spermatogenesis and oogenesis helix-loop-helix (Sohlh2), and newborn ovary homeobox (Nobox). Interestingly, BPA and DEHP exposure also prevented DNA demethylation of CpG sites of the Lhx8 gene in oocytes, a process normally associated with folliculogenesis. Finally, folliculogenesis was severely impaired in BPA and DEHP exposed ovaries after transplantation into the kidney capsules of immunodeficient mice. In conclusion, BPA and DEHP exposures impair mouse primordial follicle assembly in vitro.
Collapse
Affiliation(s)
- Teng Zhang
- Laboratory of Germ Cell Biology, Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Kim EJ, Lee D, Chung BC, Pyo H, Lee J. Association between urinary levels of bisphenol-A and estrogen metabolism in Korean adults. Sci Total Environ 2014; 470-471:1401-7. [PMID: 23954212 DOI: 10.1016/j.scitotenv.2013.07.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 06/21/2013] [Accepted: 07/12/2013] [Indexed: 05/26/2023]
Abstract
Bisphenol-A (BPA) possesses estrogenic properties both in vitro and in vivo as an endocrine disrupting chemical. Humans experience a long-term and cumulative exposure to BPA. BPA was detectable in 97.3% of 1904 urine specimens from Korean adults. We investigated urinary estrogen concentrations in subjects with low and high BPA concentrations and its possible association with estrogen metabolism. Urine samples were collected from a high BPA concentration group (BPA-H; n=100, 11.05 ± 20.47 μg/g creatinine) and a low BPA concentration group (BPA-L; n=100, 0.70 ± 0.22 μg/g creatinine) from Korea Biomonitoring Program of Hazardous Materials Survey 2009-2010. Urinary estrogens were enzymatically hydrolyzed, extracted, and then derivatized for quantitative analysis by gas chromatography-mass spectrometry. Estrogen levels were higher in the BPA-H group than in the BPA-L group. Concentrations of estrone, 17β-estradiol, and their hydroxylated metabolites in both men and women were significantly higher in the BPA-H group than in the BPA-L group (p<0.04). Furthermore, in the BPA-H group, estrogen metabolism to 4-hydroxy-estrone and 4-hydroxy-17β-estradiol was more active than that to 2-hydroxy-estrone and 2-hydroxy-17β-estradiol. Although single measurement and/or single spot urine samples limit the measurement of long-term exposure to BPA, we found significant differences of estrogen metabolism in the BPA-H and the BPA-L groups. The increase of hydroxyestrogens, especially 4-hydroxyestrogens, can be an important factor resulting negative effects of prolonged exposure to BPA.
Collapse
Affiliation(s)
- Eun Jee Kim
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea; Department of Biotechnology, Korea University, Seoul 136-701, Republic of Korea
| | - Dongho Lee
- Department of Biotechnology, Korea University, Seoul 136-701, Republic of Korea
| | - Bong Chul Chung
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
| | - Heesoo Pyo
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
| | - Jeongae Lee
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea.
| |
Collapse
|
43
|
Souter I, Smith KW, Dimitriadis I, Ehrlich S, Williams PL, Calafat AM, Hauser R. The association of bisphenol-A urinary concentrations with antral follicle counts and other measures of ovarian reserve in women undergoing infertility treatments. Reprod Toxicol 2013; 42:224-31. [PMID: 24100206 DOI: 10.1016/j.reprotox.2013.09.008] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 09/18/2013] [Accepted: 09/25/2013] [Indexed: 10/26/2022]
Abstract
In this prospective cohort of women undergoing infertility treatments, we measured specific-gravity adjusted urinary BPA (SG-BPA) concentrations and used regression models to evaluate the association of BPA with antral follicle count (AFC), day-3 serum follicle stimulating hormone levels (FSH), and ovarian volume (OV). BPA, detected in >80% of women, had a geometric mean (±GSD) of 1.6±2.0, 1.7±2.1, and 1.5±1.8μg/L for the women contributing to the AFC (n=154), day-3 FSH (n=120), and OV (n=114) analyses, respectively. There was an average decrease in AFC of 12% (95% CI: -23%, -0.6%), 22% (95% CI: -31%, -11%), and 17% (95% CI: -27%, -6%), in the 2nd, 3rd, and 4th SG-BPA quartile compared to the 1st quartile, respectively (p-trend: <0.001). No association of SG-BPA with FSH or OV was observed. Among women from an infertility clinic, higher urinary BPA concentrations were associated with lower AFC, raising concern for possible accelerated follicle loss and reproductive aging.
Collapse
Affiliation(s)
- Irene Souter
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Harvard Medical School/Massachusetts General Hospital Fertility Center, Yawkey 10-A, 55 Fruit Street, Boston, MA 02114, USA.
| | | | | | | | | | | | | |
Collapse
|
44
|
Abstract
STUDY QUESTION Does exposure to bisphenol-A (BPA) affect the maturation of human oocytes in vitro? SUMMARY ANSWER There was a dose-response association of BPA exposure with altered human oocyte maturation in vitro. WHAT IS KNOWN ALREADY There is widespread exposure of the general population to BPA. BPA has been detected in the human follicular fluid. Animal studies have shown that BPA exposure is associated with maturation arrest and spindle abnormalities in maturing oocytes. STUDY DESIGN, SIZE, DURATION A randomized trial, using 352 clinically discarded oocytes from 121 patients. PARTICIPANTS/MATERIALS, SETTING, METHODS The study population was drawn from patients undergoing IVF/ICSI cycles in our program at Brigham and Women's Hospital from March 2011 to April 2012. Oocytes from only one cycle for each patient were included in the study. Cycles with at least two germinal vesicle stage oocytes were included with random allocation of one oocyte to culture for 30 h without BPA and remaining sibling oocytes to medium-containing BPA (20, 200 ng/ml or 20 µg/ml). Oocytes were fixed and labeled for tubulin, actin and chromatin and examined with immunofluorescence and confocal microscopy. Oocytes were assessed for meiotic stage (n = 292), and those at metaphase II (MII, n = 175) were further classified according to their spindle configurations and patterns of chromosome alignment. McNemar's test was used to compare dichotomized maturation status. Generalized estimating equations were used to account for the correlation between oocytes from the same woman and for the spindle analysis. MAIN RESULTS AND THE ROLE OF CHANCE As the BPA dose increased, there was a decrease in the percentage of oocytes that progressed to MII (P = 0.002) and increases in the percentage of oocytes that were degenerated (P = 0.01) or that had undergone spontaneous activation (P = 0.007). Among MII oocytes, as the BPA dose increased, there was a significant trend (by test for trend) for a decreased incidence of bipolar spindles (P < 0.0001) and aligned chromosomes (P = 0.02). LIMITATIONS, REASONS FOR CAUTION Although we used sibling oocytes to overcome potential confounders, such as infertility diagnosis and maternal age, additional studies with a larger number of oocytes are required to confirm the present results. Having access only to clinically discarded oocytes, we were limited to evaluating only those oocytes that failed to mature in vivo despite having been exposed to gonadotrophin stimulation and the ovulatory trigger of HCG. WIDER IMPLICATIONS OF THE FINDINGS To our knowledge, this is the first study investigating the effect of BPA on oocyte meiotic maturation, spindle morphology and chromosome alignment in human oocytes. Together with prior animal studies, the data support the negative influences of BPA on cell cycle progression, spindle architecture and chromosome organization during oocyte maturation. Furthermore, the increased rates of abnormal maturation in oocytes exposed to BPA may be relevant to our understanding of the decrease in fertility reported in the last decades. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by the NIEHS Center Grant Pilot Project (P30-ES000002). R.M. was sponsored by a fellowship from the Environmental Health Fund, Israel and by the Frederick L. Hisaw Endowment, Harvard School of Public Health. There are no conflicts of interest. TRIAL REGISTRATION NUMBER n/a.
Collapse
Affiliation(s)
- Ronit Machtinger
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA
| | | | | | | | | | | | | |
Collapse
|
45
|
Herrero-Hernández E, Carabias-Martínez R, Rodríguez-Gonzalo E. Behavior of phenols and phenoxyacids on a bisphenol-A imprinted polymer. Application for selective solid-phase extraction from water and urine samples. Int J Mol Sci 2011; 12:3322-39. [PMID: 21686187 DOI: 10.3390/ijms12053322] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 03/08/2011] [Accepted: 05/10/2011] [Indexed: 11/23/2022] Open
Abstract
A molecularly imprinted polymer (MIP), obtained by precipitation polymerisation with 4-vinylpyridine as the functional monomer, ethylene glycol dimethacrylate as cross-linker, and bisphenol-A (BPA) as template, was prepared. The binding site configuration of the BPA-MIP was examined using Scatchard analysis. Moreover, the behaviour of the BPA-MIP for the extraction of several phenolic compounds (bisphenol-A, bisphenol-F, 4-nitrophenol, 3-methyl-4-nitrophenol) and phenoxyacid herbicides such as 2,4-D, 2,4,5-T and 2,4,5-TP has been studied in organic and aqueous media in the presence of other pesticides in common use. It was possible to carry out the selective preconcentration of the target analytes from the organic medium with recoveries of higher than 70%. In an aqueous medium, hydrophobic interactions were found to exert a remarkably non-specific contribution to the overall binding process. Several parameters affecting the extraction efficiency of the BPA-MIP were evaluated to achieve the selective preconcentration of phenols and phenoxyacids from aqueous samples. The possibility of using the BPA-MIP as a selective sorbent to preconcentrate these compounds from other samples such as urine and river water was also explored.
Collapse
|