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Rouget F, Bihannic A, Le Bot B, Mercier F, Gilles E, Garlantezec R, Multigner L, Cordier S, Arnaud A, Pladys P, Chevrier C. Meconium Concentrations of Pesticides and Risk of Hypospadias: A Case-Control Study in Brittany, France. Epidemiology 2024; 35:185-195. [PMID: 37934147 DOI: 10.1097/ede.0000000000001688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
BACKGROUND Hypospadias is a male genital tract defect for which an increase in prevalence has been documented over the last few decades. A role for environmental risk factors is suspected, including prenatal exposure to pesticides. OBJECTIVES To study the risk of hypospadias in association with multiple pesticide measurements in meconium samples. METHODS The Brittany Registry of Congenital Anomalies (France) conducted a case-control study between 2012 and 2018. Cases were hypospadias, ascertained by a pediatrician and a pediatric surgeon, excluding genetic conditions, following European Surveillance of Congenital Anomalies guidelines (N = 69). Controls (N = 135) were two male infants without congenital anomaly born after each case in the same maternity unit. Mothers in the maternity units completed a self-administered questionnaire, we collected medical data from hospital records, and medical staff collected meconium samples. We performed chemical analysis of 38 pesticides (parent compound and/or metabolite) by UHPLC/MS/MS following strict quality assurance/quality control criteria and blind to case-control status. We carried out logistic regression accounting for frequency-matching variables and major risk factors. RESULTS Among the 38 pesticides measured, 16 (42%) were never detected in the meconium samples, 18 (47%) were in <5% of samples, and 4 (11%) in ≥5% of the samples. We observed an association between the detection of fenitrothion in meconium and the risk of hypospadias (OR = 2.6 [1.0-6.3] with n cases = 13, n controls = 21), but not the other pesticides. CONCLUSIONS Our small study provides a robust assessment of fetal exposure. Fenitrothion's established antiandrogenic activities provide biologic plausibility for our observations. Further studies are needed to confirm this hypothesis.
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Affiliation(s)
- Florence Rouget
- From the Brittany Registry of Congenital Anomalies, CHU Rennes, University of Rennes, Inserm, EHESP, Irset - UMR 1085, Rennes, France
| | - Adèle Bihannic
- Brittany Registry of Congenital Anomalies, CHU Rennes, Rennes, France
| | - Barbara Le Bot
- University of Rennes, EHESP, Inserm, Irset - UMR 1085, Rennes, France
| | - Fabien Mercier
- University of Rennes, EHESP, Inserm, Irset - UMR 1085, Rennes, France
| | - Erwann Gilles
- University of Rennes, EHESP, Inserm, Irset - UMR 1085, Rennes, France
| | - Ronan Garlantezec
- CHU Rennes, University of Rennes, Inserm, EHESP, Irset - UMR 1085, Rennes, France
| | - Luc Multigner
- University of Rennes, Inserm, EHESP, Irset - UMR 1085, Rennes, France
| | - Sylvaine Cordier
- University of Rennes, Inserm, EHESP, Irset - UMR 1085, Rennes, France
| | - Alexis Arnaud
- Department of Pediatric Surgery, CHU Rennes, Rennes, France
| | - Patrick Pladys
- CHU Rennes, University of Rennes, Inserm, LTSI-UMR 1099, Rennes, France
| | - Cécile Chevrier
- University of Rennes, Inserm, EHESP, Irset - UMR 1085, Rennes, France
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Domínguez-Liste A, de Haro-Romero T, Quesada-Jiménez R, Pérez-Cantero A, Peinado FM, Ballesteros Ó, Vela-Soria F. Multiclass Determination of Endocrine-Disrupting Chemicals in Meconium: First Evidence of Perfluoroalkyl Substances in This Biological Compartment. TOXICS 2024; 12:75. [PMID: 38251030 PMCID: PMC10819471 DOI: 10.3390/toxics12010075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/12/2024] [Accepted: 01/13/2024] [Indexed: 01/23/2024]
Abstract
Major concerns have been raised about human exposure to endocrine-disrupting chemicals (EDCs) during pregnancy. Effective methodologies for the assessment of this exposure are needed to support the implementation of preventive measures and the prediction of negative health effects. Meconium has proven a valuable non-invasive matrix for evaluating cumulative exposure to xenobiotics during the last two trimesters of pregnancy. The study objective was to develop a novel method to determine the presence in meconium of perfluoroalkyl substances (PFASs), bisphenols, parabens, and benzophenones, EDCs that are widely used in the manufacture of numerous consumer goods and personal care products, including cosmetics. Ten PFASs, two bisphenols, four parabens, and four benzophenones were measured in meconium samples prepared by using a combination of Captiva Enhanced Matrix Removal (EMR) lipid cartridges with salt-assisted liquid-liquid extraction (SALLE) and dispersive liquid-liquid microextraction (DLLME) before the application of liquid chromatography-tandem mass spectrometry (LC-MS/MS). Experimental parameters were optimized by applying different chemometric techniques. Limits of detection ranged from 0.05 to 0.1 ng g-1, and between-day variabilities (relative standard deviations) ranged from 6.5% to 14.5%. The method was validated by matrix-matched standard calibration followed by a recovery assay with spiked samples, obtaining percentage recoveries of 89.9% to 114.8%. The method was then employed to measure compounds not previously studied in this matrix in 20 meconium samples. The proposed analytical procedure yields information on cumulative in utero exposure to selected EDCs.
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Affiliation(s)
- Aritz Domínguez-Liste
- Analytical Chemistry and Life Sciences Research Group, Department of Analytical Chemistry, University of Granada, E-18071 Granada, Spain; (A.D.-L.); (Ó.B.)
| | - Teresa de Haro-Romero
- Instituto de Investigación Biosanitaria (ibs.GRANADA), E-18016 Granada, Spain; (T.d.H.-R.); (R.Q.-J.); (F.V.-S.)
- Clinical Laboratory Management Unit, Hospital Universitario Clínico San Cecilio, E-18016 Granada, Spain
| | - Raquel Quesada-Jiménez
- Instituto de Investigación Biosanitaria (ibs.GRANADA), E-18016 Granada, Spain; (T.d.H.-R.); (R.Q.-J.); (F.V.-S.)
- Centre for Biomedical Research, University of Granada, E-18016 Granada, Spain
- Radiology and Physical Medicine Department, University of Granada, E-18016 Granada, Spain;
| | - Ainhoa Pérez-Cantero
- Radiology and Physical Medicine Department, University of Granada, E-18016 Granada, Spain;
| | - Francisco Manuel Peinado
- Instituto de Investigación Biosanitaria (ibs.GRANADA), E-18016 Granada, Spain; (T.d.H.-R.); (R.Q.-J.); (F.V.-S.)
- Centre for Biomedical Research, University of Granada, E-18016 Granada, Spain
- Radiology and Physical Medicine Department, University of Granada, E-18016 Granada, Spain;
| | - Óscar Ballesteros
- Analytical Chemistry and Life Sciences Research Group, Department of Analytical Chemistry, University of Granada, E-18071 Granada, Spain; (A.D.-L.); (Ó.B.)
| | - Fernando Vela-Soria
- Instituto de Investigación Biosanitaria (ibs.GRANADA), E-18016 Granada, Spain; (T.d.H.-R.); (R.Q.-J.); (F.V.-S.)
- Clinical Laboratory Management Unit, Hospital Universitario Clínico San Cecilio, E-18016 Granada, Spain
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3
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Lacomba I, López A, Hervàs-Ayala R, Coscollà C. Development of a Methodology for Determination of Dioxins and Dioxin-like PCBs in Meconium by Gas Chromatography Coupled to High-Resolution Mass Spectrometry (GC-HRMS). Molecules 2023; 28:5006. [PMID: 37446668 DOI: 10.3390/molecules28135006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/19/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
An analytical strategy was applied to investigate polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (dl-PCBs) in newborn meconium samples. The methodology includes extraction by selective pressurized liquid extraction (SPLE), followed by a clean-up multicolumn step. The samples were injected by gas chromatography coupled to a high-resolution mass spectrometer (GC-HRMS). The surrogate recoveries ranged from 68% to 95%, and the average of the limit of quantification (LOQ) ranged from 0.03 to 0.08 pg g-1 wet weight (ww) for PCDD/Fs and 0.2 to 0.88 pg g-1 ww for dl-PCBs. The strategy was applied to 10 samples collected in Valencia (Spain) in 2022. In total, 18 out of 29 analysed congeners were detected in at least one sample, whereas 6 of them were detected in all the samples (OCDD, PCB-123, PCB-118, PCB-105, PCB-167, and PCB-156). The levels for the sum of the 17 congeners of PCDD/Fs and 12 congeners of dl-PCBs in the upper-bound (UB), expressed as picograms of toxic equivalency quantity (TEQ) per gram of ww, ranged from 0.19 to 0.31 pg TEQ g-1 ww.
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Affiliation(s)
- Iñaki Lacomba
- Foundation for the Promotion of Health and Biomedical Research of the Valencian Region, FISABIO-Public Health, Av. Catalunya, 21, 46020 Valencia, Spain
- Department of Analytical Chemistry, Univeristy of Valencia, Doctor Moliner 50, 46100 Burjassot, Spain
| | - Antonio López
- Foundation for the Promotion of Health and Biomedical Research of the Valencian Region, FISABIO-Public Health, Av. Catalunya, 21, 46020 Valencia, Spain
| | - Raquel Hervàs-Ayala
- Department of Obstetrics and Gynaecology, General University Hospital of Valencia, 46014 Valencia, Spain
| | - Clara Coscollà
- Foundation for the Promotion of Health and Biomedical Research of the Valencian Region, FISABIO-Public Health, Av. Catalunya, 21, 46020 Valencia, Spain
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Zhou M, Peng L, Wang J, Cao R, Ou Z, Fang Y. Cadmium exposure and the risk of GDM: evidence emerging from the systematic review and meta-analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:77253-77274. [PMID: 35672642 DOI: 10.1007/s11356-022-21171-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Gestational diabetes mellitus (GDM) has become a global concern for its severe adverse effects on both mother and fetus. Recent epidemiological studies reported inconsistent results of the association between cadmium (Cd) exposure and GDM. Therefore, a systematic review and meta- analysis were performed. PubMed, Web of Science, Scopus, Embase, and SpringerLink were searched up to July 2021. Observational studies containing the adjusted relative risks between Cd exposure and GDM were included in the quantitative synthesis. The retrieval comprised 218 articles out of which 11 met our criteria and 9 were included in the meta-analysis, representing a total of 32,392 subjects (2881 GDM). In total, Cd exposure might increase the risk of GDM in some extent (OR = 1.21, 95% CI [0.89, 1.64]), even without statistical significance in high heterogeneity (Q = 28.45, p < 0.05, I2 = 71.9%). Filtering two outliers indicated by Galbraith plot yielded a similar risk (OR = 1.19, 95% CI [1.02, 1.39]) with statistical significance. However, the heterogeneity among studies was obviously reduced (Q = 11.75, p = 0.068, I2 = 48.9%). Additionally, biological specimen, study design, and diagnostic criteria contributed to the high heterogeneity according to the subgroup analysis. Since some important results do not deny that Cd exposure increases the risk of GDM, high-quality multi-centered large cohort studies are required in the future.
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Affiliation(s)
- Minqi Zhou
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lianqi Peng
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jingming Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Rong Cao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zixuan Ou
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yiwei Fang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Jaszczak-Wilke E, Kozioł K, Kiełbratowska B, Polkowska Ż. Ion Chromatography with Pulsed Amperometric Detection for Determining Cyanide in Urine and Meconium Samples. Molecules 2021; 26:4672. [PMID: 34361828 PMCID: PMC8348170 DOI: 10.3390/molecules26154672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/23/2021] [Accepted: 07/29/2021] [Indexed: 11/17/2022] Open
Abstract
The parents' addictions and eating habits have a significant influence on the child's growth. The first stool of a newborn baby provides a large amount of information about xenobiotics transmitted by the mother's body. The analytical technique used in the study is ion chromatography with pulsed amperometric detection (IC-PAD). The biological samples, which were obtained from women staying in a maternity ward and their partners, revealed cyanide concentrations in urine samples spanning 1.30-25.3 μg L-1. Meanwhile, the results of the meconium samples were in the range of 1.54 μg L-1 to 24.9 μg L-1. Under the optimized chromatographic conditions, the IC-PAD system exhibited satisfactory repeatability (R < 3%, n = 3) and good linearity in the range of 1-100 μg L-1. Thus, it proved to be an effective tool for monitoring trace cyanide concentration in a series of human body fluid matrices, including meconium. Based on the literature review, this is the first application of the IC-PAD analytical technique for the determination of cyanide ions in meconium samples.
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Affiliation(s)
- Ewa Jaszczak-Wilke
- Department of Analytical Chemistry, Faculty of Chemistry, Gdansk University of Technology, 11/12 Narutowicza Str., 80-233 Gdansk, Poland; (E.J.-W.); (K.K.)
| | - Krystyna Kozioł
- Department of Analytical Chemistry, Faculty of Chemistry, Gdansk University of Technology, 11/12 Narutowicza Str., 80-233 Gdansk, Poland; (E.J.-W.); (K.K.)
| | - Bogumiła Kiełbratowska
- Department of Obstetrics, Medical University of Gdansk, Marii Skłodowskiej-Curie 3a, 80-210 Gdansk, Poland;
| | - Żaneta Polkowska
- Department of Analytical Chemistry, Faculty of Chemistry, Gdansk University of Technology, 11/12 Narutowicza Str., 80-233 Gdansk, Poland; (E.J.-W.); (K.K.)
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6
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Lum JTS, Chan YN, Leung KSY. Current applications and future perspectives on elemental analysis of non-invasive samples for human biomonitoring. Talanta 2021; 234:122683. [PMID: 34364482 DOI: 10.1016/j.talanta.2021.122683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 12/09/2022]
Abstract
Humans are continuously exposed to numerous environmental pollutants including potentially toxic elements. Essential elements play an important role in human health. Abnormal elemental levels in the body, in different forms that existed, have been reported to be correlated with different diseases and environmental exposure. Blood is the conventional biological sample used in human biomonitoring. However, blood samples can only reflect short-term exposure and require invasive sampling, which poses infection risk to individuals. In recent years, the number of research evaluating the effectiveness of non-invasive samples (hair, nails, urine, meconium, breast milk, placenta, cord blood, saliva and teeth) for human biomonitoring is increasing. These samples can be collected easily and provide extra information in addition to blood analysis. Yet, the correlation between the elemental concentration in non-invasive samples and in blood is not well established, which hinders the application of those samples in routine human biomonitoring. This review aims at providing a fundamental overview of analytical methods of non-invasive samples in human biomonitoring. The content covers the sample collection and pretreatment, sample preparation and instrumental analysis. The technical discussions are separated into solution analysis and solid analysis. In the last section, the authors highlight some of the perspectives on the future of elemental analysis in human biomonitoring.
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Affiliation(s)
- Judy Tsz-Shan Lum
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Yun-Nam Chan
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Kelvin Sze-Yin Leung
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, China.
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Woźniak MK, Banaszkiewicz L, Aszyk J, Wiergowski M, Jańczewska I, Wierzba J, Kot-Wasik A, Biziuk M. Development and validation of a method for the simultaneous analysis of fatty acid ethyl esters, ethyl sulfate and ethyl glucuronide in neonatal meconium: application in two cases of alcohol consumption during pregnancy. Anal Bioanal Chem 2021; 413:3093-3105. [PMID: 33758986 PMCID: PMC8043868 DOI: 10.1007/s00216-021-03248-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/01/2021] [Accepted: 02/22/2021] [Indexed: 10/29/2022]
Abstract
Alcohol consumption during pregnancy constitutes one of the leading preventable causes of birth defects and neurodevelopmental disorders in the exposed children. Fatty acid ethyl esters (FAEEs), ethyl glucuronide (EtG) and ethyl sulfate (EtS) have been studied as potential biomarkers of alcohol consumption. However, most analytical approaches proposed for their analysis in meconium samples consist of separated extraction procedures requiring the use of two meconium aliquots, which is costly in terms of both time and materials. Therefore, the aim of this study was to develop and validate a method for the simultaneous extraction of 9 FAEEs, EtG and EtS from one meconium aliquot. The sample was homogenized using methanol, and then FAEEs were extracted with hexane while EtG and EtS were isolated using acetonitrile. Then, extracts were applied to solid-phase extraction columns and analysed by gas chromatography mass spectrometry (FAEEs) and liquid chromatography tandem mass spectrometry (EtG and EtS). Calibration curves were linear with r values greater than 0.99. The LODs ranged from 0.8 to 7.5 ng/g for FAEEs and were 0.2 ng/g and 0.8 ng/g for EtS and EtG, respectively. LOQs ranged from 5 to 25 ng/g for FAEEs and were 1 ng/g and 2.5 ng/g for EtS and EtG, respectively. Accuracies and precisions were between 93.8 and 107% and between 3.5 and 9.7%, respectively. The recovery values ranged from 89.1 to 109%. The method proved to be sensitive, specific, simple and fast and allowed for the reduction of the amount of organic solvent used for extraction compared to other published data while higher recoveries were obtained. The method was used for analysis of meconium samples in two cases of mothers who were consuming alcohol during pregnancy.
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Affiliation(s)
- Mateusz Kacper Woźniak
- Department of Forensic Medicine, Faculty of Medicine, Medical University of Gdańsk, 3A Marii Skłodowskiej-Curie Str., 80-210, Gdańsk, Poland. .,Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Str., 80-233, Gdańsk, Poland.
| | - Laura Banaszkiewicz
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Str., 80-233, Gdańsk, Poland
| | - Justyna Aszyk
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Str., 80-233, Gdańsk, Poland.,Pharmaceutical Plant Polpharma SA, 19 Pelplińska Str., 83-200, Starogard Gdański, Poland
| | - Marek Wiergowski
- Department of Forensic Medicine, Faculty of Medicine, Medical University of Gdańsk, 3A Marii Skłodowskiej-Curie Str., 80-210, Gdańsk, Poland
| | - Iwona Jańczewska
- Department of Neonatology, The University Clinical Centre, Faculty of Medicine, Medical University of Gdańsk, 3A Marii Skłodowskiej-Curie Str., 80-210, Gdańsk, Poland
| | - Jolanta Wierzba
- Department of Internal and Pediatric Nursing, Faculty of Health Sciences with Institute of Maritime and Tropical Medicine Institute of Nursing and Midwifery, Medical University of Gdańsk, 3A Marii Skłodowskiej-Curie Str., 80-210, Gdańsk, Poland
| | - Agata Kot-Wasik
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Str., 80-233, Gdańsk, Poland
| | - Marek Biziuk
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Str., 80-233, Gdańsk, Poland
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Application of microextraction techniques in alternative biological matrices with focus on forensic toxicology: a review. Bioanalysis 2020; 13:45-64. [PMID: 33326299 DOI: 10.4155/bio-2020-0241] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The interest in alternative biological matrices (e.g., hair and saliva) for forensic toxicology analysis has increased, and recent developments in sample preparation have targeted rapid, cheap, efficient and eco-friendly methods, including microextraction techniques. For this review, we have gathered information about these two hot topics. We discuss the composition, incorporation of analytes and advantages and disadvantages of different biological matrices, and also present the operation principles of the most reported microextraction procedures and their application in forensic toxicology. The outcome of this review may encourage future forensic researches into alternative samples and microextraction techniques.
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9
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Guillard A, Gaultier E, Cartier C, Devoille L, Noireaux J, Chevalier L, Morin M, Grandin F, Lacroix MZ, Coméra C, Cazanave A, de Place A, Gayrard V, Bach V, Chardon K, Bekhti N, Adel-Patient K, Vayssière C, Fisicaro P, Feltin N, de la Farge F, Picard-Hagen N, Lamas B, Houdeau E. Basal Ti level in the human placenta and meconium and evidence of a materno-foetal transfer of food-grade TiO 2 nanoparticles in an ex vivo placental perfusion model. Part Fibre Toxicol 2020; 17:51. [PMID: 33023621 PMCID: PMC7541303 DOI: 10.1186/s12989-020-00381-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 09/14/2020] [Indexed: 02/07/2023] Open
Abstract
Background Titanium dioxide (TiO2) is broadly used in common consumer goods, including as a food additive (E171 in Europe) for colouring and opacifying properties. The E171 additive contains TiO2 nanoparticles (NPs), part of them being absorbed in the intestine and accumulated in several systemic organs. Exposure to TiO2-NPs in rodents during pregnancy resulted in alteration of placental functions and a materno-foetal transfer of NPs, both with toxic effects on the foetus. However, no human data are available for pregnant women exposed to food-grade TiO2-NPs and their potential transfer to the foetus. In this study, human placentae collected at term from normal pregnancies and meconium (the first stool of newborns) from unpaired mothers/children were analysed using inductively coupled plasma mass spectrometry (ICP-MS) and scanning transmission electron microscopy (STEM) coupled to energy-dispersive X-ray (EDX) spectroscopy for their titanium (Ti) contents and for analysis of TiO2 particle deposition, respectively. Using an ex vivo placenta perfusion model, we also assessed the transplacental passage of food-grade TiO2 particles. Results By ICP-MS analysis, we evidenced the presence of Ti in all placentae (basal level ranging from 0.01 to 0.48 mg/kg of tissue) and in 50% of the meconium samples (0.02–1.50 mg/kg), suggesting a materno-foetal passage of Ti. STEM-EDX observation of the placental tissues confirmed the presence of TiO2-NPs in addition to iron (Fe), tin (Sn), aluminium (Al) and silicon (Si) as mixed or isolated particle deposits. TiO2 particles, as well as Si, Al, Fe and zinc (Zn) particles were also recovered in the meconium. In placenta perfusion experiments, confocal imaging and SEM-EDX analysis of foetal exudate confirmed a low transfer of food-grade TiO2 particles to the foetal side, which was barely quantifiable by ICP-MS. Diameter measurements showed that 70 to 100% of the TiO2 particles recovered in the foetal exudate were nanosized. Conclusions Altogether, these results show a materno-foetal transfer of TiO2 particles during pregnancy, with food-grade TiO2 as a potential source for foetal exposure to NPs. These data emphasize the need for risk assessment of chronic exposure to TiO2-NPs during pregnancy.
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Affiliation(s)
- A Guillard
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - E Gaultier
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - C Cartier
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - L Devoille
- Department of materials, LNE, Trappes, France
| | - J Noireaux
- Department for biomedical and inorganic chemistry, LNE, Paris, France
| | - L Chevalier
- Group Physic of Materials, GPM-UMR6634, CNRS, Rouen University, Rouen, France
| | - M Morin
- Department of Obstetrics and Gynecology, Paule de Viguier Hospital, CHU Toulouse, Toulouse, France
| | - F Grandin
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - M Z Lacroix
- INTHERES, UMR 1436 Toulouse University, INRAE, ENVT, Toulouse, France
| | - C Coméra
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - A Cazanave
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - A de Place
- Department of Obstetrics and Gynecology, Paule de Viguier Hospital, CHU Toulouse, Toulouse, France
| | - V Gayrard
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - V Bach
- Péritox UMR-I 01 (Perinatality and Toxic Risk), Jules Verne University, Amiens, France
| | - K Chardon
- Péritox UMR-I 01 (Perinatality and Toxic Risk), Jules Verne University, Amiens, France
| | - N Bekhti
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 91191, Gif-sur-Yvette, France
| | - K Adel-Patient
- Université Paris Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 91191, Gif-sur-Yvette, France
| | - C Vayssière
- Department of Obstetrics and Gynecology, Paule de Viguier Hospital, CHU Toulouse, Toulouse, France.,UMR 1027 INSERM, Team SPHERE, Toulouse III University, Toulouse, France
| | - P Fisicaro
- Department for biomedical and inorganic chemistry, LNE, Paris, France
| | - N Feltin
- Department of materials, LNE, Trappes, France
| | - F de la Farge
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - N Picard-Hagen
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - B Lamas
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - E Houdeau
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France.
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10
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Matovu H, Ssebugere P, Sillanpää M. Prenatal exposure levels of polybrominated diphenyl ethers in mother-infant pairs and their transplacental transfer characteristics in Uganda (East Africa). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 258:113723. [PMID: 31869703 DOI: 10.1016/j.envpol.2019.113723] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 05/20/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are ubiquitous environmental pollutants with adverse effects on the foetus and infants. This study aimed at assessing in utero exposure levels and transplacental transfer (TPT) characteristics of BDE congeners in primiparous mothers from Kampala, the capital city of Uganda. Paired human samples (30 placenta and 30 cord blood samples) were collected between April and June 2018; and analysed for a suite of 24 tri-to deca-BDE congeners. Extraction was carried out using liquid-liquid extraction and sonication for cord blood and placenta samples, respectively. Clean-up was done on a solid phase (SPE) column and analysis was performed using gas chromatography/mass spectrometry (GC/MS). Total (∑) PBDEs were 0.25-30.9 ng/g lipid weight (lw) (median; 7.11 ng/g lw) in placental tissues and 1.65-34.5 ng/g lw (median; 11.9 ng/g lw) in cord blood serum, with a mean difference of 1.26 ng/g lw between the compartments. Statistical analysis showed no significant difference between the levels of PBDEs in cord blood and placenta samples (Wilcoxon signed rank test, p = 0.665), possibly because foetus and neonates have poorly developed systems to metabolise the pollutants from the mothers. BDE-209 was the dominant congener in both matrices (contributed 40.5% and 51.2% to ∑PBDEs in placenta and cord blood, respectively), suggesting recent and on-going maternal exposure to deca-BDE formulation. Non-significant associations were observed between ∑PBDEs in maternal placenta and maternal age, household income, pre-pregnancy body mass index (BMI), and beef/fish consumption. This suggested on-going exposure to PBDEs through multiple sources such as dust from indoor/outdoor environments and, ingestion of other foods. Based on absolute concentrations, the extent of transplacental transport was greater for higher congeners (BDE-209, -206 and -207) than for lower ones (such as BDE-47), suggesting alternative TPT mechanisms besides passive diffusion. More studies with bigger sample sizes are required to confirm these findings.
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Affiliation(s)
- Henry Matovu
- Department of Chemistry, Gulu University, P. O. Box 166, Gulu, Uganda; Department of Chemistry, Makerere University, P. O. Box 7062, Kampala, Uganda; Department of Green Chemistry, Lappeenranta University of Technology, Sammonkatu 12, 50190, Mikkeli, Finland
| | - Patrick Ssebugere
- Department of Chemistry, Makerere University, P. O. Box 7062, Kampala, Uganda.
| | - Mika Sillanpää
- Department of Green Chemistry, Lappeenranta University of Technology, Sammonkatu 12, 50190, Mikkeli, Finland
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11
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Mols KL, Boe-Hansen GB, Mikkelsen D, Bryden WL, Cawdell-Smith AJ. Prenatal establishment of the foal gut microbiota: a critique of the in utero colonisation hypothesis. ANIMAL PRODUCTION SCIENCE 2020. [DOI: 10.1071/an20010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Bacteria colonisation of the foal’s gastrointestinal tract (GIT) is a critical developmental stage, effecting subsequent immunological and health outcomes. It has long been thought that the equine fetus develops in a sterile intrauterine environment and GIT colonisation commences at birth. Research now suggests that bacteria isolated from amniotic fluid are the initial colonisers of the fetal GIT, and exposure to the dam’s microbiota and the external environment during birth provide supplementary colonisation. This in utero colonisation hypothesis has only recently been examined in the horse and microbiota were detected in the amniotic fluid and meconium of healthy equine pregnancies. This review highlights the possible colonisation routes of these bacteria into the fetal compartments and examines their likely origins from the existing maternal microbiome. However, the current data describing the amniotic microbiota of the horse are limited and there is a need for research to fill this gap. Understanding the significance of intrauterine microbes for foal GIT colonisation may provide strategies to improve neonatal health.
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12
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Szymańska U, Wiergowski M, Sołtyszewski I, Kuzemko J, Wiergowska G, Woźniak MK. Presence of antibiotics in the aquatic environment in Europe and their analytical monitoring: Recent trends and perspectives. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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