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Ferreira ALL, Freitas-Costa N, da Silva Rosa Freire S, Figueiredo ACC, Padilha M, Alves-Santos NH, Kac G. Association between persistent organic pollutants in human milk and the infant growth and development throughout the first year postpartum in a cohort from Rio de Janeiro, Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:115050-115063. [PMID: 37878172 DOI: 10.1007/s11356-023-30316-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 10/03/2023] [Indexed: 10/26/2023]
Abstract
Persistent organic pollutants (POPs) are compounds that are recalcitrant and ubiquitous that bioaccumulate in human milk (HM) and can impact infant growth and development. We explore the association between POP concentration in HM at 2-50 days postpartum and infant growth and development trajectory throughout the first year of life. A cohort of 68 healthy adult Brazilian women and their infants were followed from 28 to 35 gestational weeks to 12 months postpartum. HM samples were collected between 2 and 50 days postpartum, and POP concentrations were analyzed using gas chromatography with mass spectrometry. Concentrations of POPs >limit of quantification (LOQ) were defined as presence, and concentrations ≤LOQ as an absence. Growth z-scores were analyzed according to WHO growth charts and infant development scores according to Age & Stages Questionnaires at 1 (n = 66), 6 (n = 50), and 12 months (n = 45). Linear mixed effects (LME) models were used to investigate the association of POPs in HM with infant growth and development. Benjamini-Hochberg (BH) correction for multiple testing was performed to reduce the false discovery ratio. P < 0.1 was considered for models with the interaction between POPs and time/sex. After BH correction, adjusted LME models with time interaction showed (1) a positive association between the presence of β hexachlorocyclohexane and an increase in head circumference-for-age z-score (β = 0.003, P = 0.095); (2) negative associations between total POPs (β = -0.000002, P = 0.10), total organochlorine pesticides (β = -0.000002, P = 0.10), and dichlorodiphenyldichloroethylene concentrations in HM (β = -0.000002, P = 0.10) and fine motor scores. No statistical difference between the sexes was observed. Postnatal exposure to organochlorine pesticides in HM shows a positive association with the trajectory of head circumference-for-age z-score and a negative association with the trajectories of fine motor skills scores. Future studies on POP variation in HM at different postpartum times and their effect on infant growth and development should be encouraged.
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Affiliation(s)
- Ana Lorena Lima Ferreira
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Rio de Janeiro Federal University, Avenida Carlos Chagas Filho 373/CCS, Bloco J, 2o Andar, Sala 29, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Nathalia Freitas-Costa
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Rio de Janeiro Federal University, Avenida Carlos Chagas Filho 373/CCS, Bloco J, 2o Andar, Sala 29, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Samary da Silva Rosa Freire
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Rio de Janeiro Federal University, Avenida Carlos Chagas Filho 373/CCS, Bloco J, 2o Andar, Sala 29, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Amanda Caroline Cunha Figueiredo
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Rio de Janeiro Federal University, Avenida Carlos Chagas Filho 373/CCS, Bloco J, 2o Andar, Sala 29, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ, 21941-902, Brazil
- Health Science Center, Serra dos Órgãos University Center, Avenida Alberto Tôrres, 111 - Alto, Rio de Janeiro, 25964-004, Teresópilis, Brazil
| | - Marina Padilha
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Rio de Janeiro Federal University, Avenida Carlos Chagas Filho 373/CCS, Bloco J, 2o Andar, Sala 29, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Nadya Helena Alves-Santos
- Faculty of Collective Health, Institute for Health and Biological Studies, Federal University of South and Southeast of Pará, Rodovia BR-230 (Transamazônica), Loteamento Cidade Jardim, Avenida dos Ipês, s/n.o - Cidade Jardim, Maraba, PA, 68500-000, Brazil
| | - Gilberto Kac
- Nutritional Epidemiology Observatory, Josué de Castro Nutrition Institute, Rio de Janeiro Federal University, Avenida Carlos Chagas Filho 373/CCS, Bloco J, 2o Andar, Sala 29, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ, 21941-902, Brazil.
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Liu C, Hou HS. Physical exercise and persistent organic pollutants. Heliyon 2023; 9:e19661. [PMID: 37809764 PMCID: PMC10558913 DOI: 10.1016/j.heliyon.2023.e19661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 08/29/2023] [Accepted: 08/29/2023] [Indexed: 10/10/2023] Open
Abstract
Exposure to the legacy and emerging persistent organic pollutants (POPs) incessantly has become an important threat to individual health, which is closely related to neurodevelopment, endocrine and cardiovascular homeostasis. Exercise, on the other hand, has been consistently shown to improve physical fitness. Whereas associations between traditional air pollutants, exercise and lung function have been thoroughly reviewed, reviews on associations between persistent organic pollutants and exercise are scarce. Hence, a literature review focused on exercise, exposure to POPs, and health risk assessment was performed for studies published from 2004 to 2022. The purpose of this review is to provide an overview of exposure pathways and levels of POPs during exercise, as well as the impact of exercise on health concerns attributable to the redistribution, metabolism, and excretion of POPs in vivo. Therein lies a broader array of exercise benefits, including insulin sensitizing, mitochondrial DNA repair, lipid metabolism and intestinal microecological balance. Physical exercise is conducive to reduce POPs body burden and resistant to health hazards of POPs generally. Besides, individual lipid metabolism condition is a critical factor in evaluating potential link in exercise, POPs and health effects.
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Affiliation(s)
- Chang Liu
- College of P.E, Minzu University of China, # 27, South Street Zhongguancun, Beijing, 100081, China
| | - Hui sheng Hou
- College of P.E, Minzu University of China, # 27, South Street Zhongguancun, Beijing, 100081, China
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Dwivedi N, Mahdi AA, Deo S. Assessment of endocrine disrupting chemicals in breast milk: Association with dietary habits and duration of lactation. ENVIRONMENTAL RESEARCH 2023; 221:115216. [PMID: 36608766 DOI: 10.1016/j.envres.2023.115216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
The present study was aimed to assess infant safety associated with the presence of persistent organochlorine pesticides (OCPs) in breast milk, a possible route of transfer of endocrine-disrupting chemicals to newborns in North India. Colostrum and breast milk samples (n = 130) were collected at different stages of lactation. Pesticides analysis was performed using gas chromatography mass spectrometry (GC-MS). We observed that of all the samples analysed, OCPs concentration was higher in breast milk than in colostrum, suggesting pesticides contamination increases over lactation period. As far as OCPs are concerned, dieldrin [1196.64 ± 673.75 ng/g lipid weight (lw)], and β-HCH [1107.78 ± 1301.72 ng/g lw], were the predominant OCPs, followed by aldrin [977.09 ± 707.69 ng/g lw], α-HCH [948.04 ± 476.65 ng/g lw] and 1,1'-(2,2-Dichloroethene-1,1-diyl)bis(4-chlorobenzene) (p,p'DDE) [790.11 ± 399.35 ng/g lw]. The association between OCPs levels and women dietary habits were also explored, and all the OCPs were grouped and compared to each other by consumption level of fish, meat, sea foods, eggs, and dairy products. We found that women consuming non vegetarian food, like fish and meat, were exposed 3.5 times more to OCPs than women consuming vegetarian food. In addition, we also observed that factors like mother's age was positively (<0.005 - <0.001) correlated while gestational age and infant birth weight were negatively (<0.005) associated with the levels of OCPs in colostrum and breast milk, respectively. Unfortunately, neither any standards nor guidelines are available for the use of pesticides, therefore, it is suggested that careless use of OCPs should be checked and suitable remedial measures be taken to decrease human contamination. Moreover, further studies are warranted to elucidate relationship between pesticide residues in breast milk and the maternal and child health.
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Affiliation(s)
- Naina Dwivedi
- Department of Biochemistry, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Abbas Ali Mahdi
- Department of Biochemistry, King George's Medical University, Lucknow, Uttar Pradesh, India.
| | - Sujata Deo
- Department of Obstetrics and Gynaecology, King George's Medical University, Lucknow, Uttar Pradesh, India
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Rawn DFK, Quade SC, Corrigan C, Ménard C, Sun WF, Breton F, Arbuckle TE, Fraser WD. Differences in mirex [dechlorane] and dechlorane plus [syn- and anti-] concentrations observed in Canadian human milk. CHEMOSPHERE 2023; 316:137784. [PMID: 36623597 DOI: 10.1016/j.chemosphere.2023.137784] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
As part of the pan-Canadian Maternal-Infant Research on Environmental Chemicals (MIREC) study, human milk samples were collected between 2008 and 2011, and analyzed for mirex, an organochlorine insecticide and flame retardant, in addition to dechlorane plus (syn- and anti-DDC-CO), the flame retardant replacement for mirex. Mirex was analyzed separately, using a method for the analysis of existing organochlorine insecticides, while the presence of DDC-CO isomers was determined using a method developed for the detection of emerging flame retardants. Mirex was detected in all samples analyzed (n = 298), while syn- and anti-DDC-CO were present in 61.0% and 79.5% of the samples, respectively (n = 541). Mirex concentrations have declined in human milk since the 1990s. Since this is the first pan-Canadian dataset reporting DDC-CO concentrations in human milk, no temporal comparisons can be made. Maternal age was correlated with concentrations of both compounds although parity did not impact concentrations of either analyte. Given the presence of this relatively recently identified flame retardant (DDC-CO) in human milk from women across Canada, studies to identify dominant sources of this compound are critical. Despite low concentrations of environmental chemicals in human milk from Canadian women, Health Canada supports breastfeeding of infants because of the important health benefits to both the mothers and their infants.
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Affiliation(s)
- Dorothea F K Rawn
- Food Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Sir Frederick Banting Research Centre, 251 Sir Frederick Banting Driveway, Address Locator: 2203C, Tunney's Pasture, Ottawa, ON, K1A 0K9, Canada.
| | - Sue C Quade
- Food Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Sir Frederick Banting Research Centre, 251 Sir Frederick Banting Driveway, Address Locator: 2203C, Tunney's Pasture, Ottawa, ON, K1A 0K9, Canada
| | - Catherine Corrigan
- Food Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Sir Frederick Banting Research Centre, 251 Sir Frederick Banting Driveway, Address Locator: 2203C, Tunney's Pasture, Ottawa, ON, K1A 0K9, Canada
| | - Cathie Ménard
- Food Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Sir Frederick Banting Research Centre, 251 Sir Frederick Banting Driveway, Address Locator: 2203C, Tunney's Pasture, Ottawa, ON, K1A 0K9, Canada
| | - Wing-Fung Sun
- Food Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Sir Frederick Banting Research Centre, 251 Sir Frederick Banting Driveway, Address Locator: 2203C, Tunney's Pasture, Ottawa, ON, K1A 0K9, Canada
| | - François Breton
- Food Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Sir Frederick Banting Research Centre, 251 Sir Frederick Banting Driveway, Address Locator: 2203C, Tunney's Pasture, Ottawa, ON, K1A 0K9, Canada; Generic Drugs Division, Bureau of Pharmaceutical Sciences, Health Products and Food Branch, Health Canada, 101 Tunney's Pasture Driveway, Address Locator: 0201D, Tunney's Pasture, Ottawa, ON, K1A 0K9, Canada
| | - Tye E Arbuckle
- Environmental Health Science and Research Bureau, Environmental and Radiation Health Sciences Directorate, Healthy Environments and Consumer Safety Branch, Health Canada, 50 Colombine Driveway, Address Locator: 0801A, Ottawa, ON, K1A 0K9, Canada
| | - William D Fraser
- CHU Sainte-Justine, Centre de Recherche, Université de Montréal, Montréal, QC, Canada
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Sanguos CL, Suárez OL, Martínez-Carballo E, Couce ML. Postnatal exposure to organic pollutants in maternal milk in north-western Spain. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 318:120903. [PMID: 36549446 DOI: 10.1016/j.envpol.2022.120903] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Evaluation of postnatal exposure to organic pollutants is especially important for suckling infants during breastfeeding, a crucial perinatal growth period when organs and hormonal systems develop. We determined levels of 60 pollutants, including organochlorine pesticides (OCPs), organophosphorus pesticides (OPPs), pyrethroids (PYRs), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and polybrominated diphenyl ethers (PBDEs), in 81 breast milk samples from breastfeeding mothers from Santiago de Compostela (north-western Spain). For most detected organic pollutants, levels were correlated with the season of milk sampling, maternal age at delivery, and place of residence. Dietary consumption habits (eggs, molluscs, and vegetable oils) were also correlated with OCP, OPP, PCB, PBDE and PYR levels. We also assessed the risk to infant health of exposure to organic pollutants in breast milk. PAHs, OCPs, OPPs, and PYRs accounted for almost 95% of the targeted organic pollutants in the samples analysed.
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Affiliation(s)
- Carolina López Sanguos
- Department of Neonatology, University Clinical Hospital of Santiago de Compostela, Santiago de Compostela, 15704, Spain; IDIS-Health Research Institute of Santiago de Compostela, Santiago de Compostela, 15704, Spain; Faculty of Medicine, University of Santiago de Compostela, Santiago de Compostela, 15704, Spain; Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS), Instituto de Salud Carlos III, Madrid, Spain.
| | - Olalla López Suárez
- Department of Neonatology, University Clinical Hospital of Santiago de Compostela, Santiago de Compostela, 15704, Spain; IDIS-Health Research Institute of Santiago de Compostela, Santiago de Compostela, 15704, Spain; Faculty of Medicine, University of Santiago de Compostela, Santiago de Compostela, 15704, Spain; Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS), Instituto de Salud Carlos III, Madrid, Spain.
| | - Elena Martínez-Carballo
- Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS), Instituto de Salud Carlos III, Madrid, Spain; Food and Health Omics, Department of Analytical and Food Chemistry, Faculty of Sciences, Campus da Auga, University of Vigo, Ourense, 32004, Spain.
| | - María Luz Couce
- Department of Neonatology, University Clinical Hospital of Santiago de Compostela, Santiago de Compostela, 15704, Spain; IDIS-Health Research Institute of Santiago de Compostela, Santiago de Compostela, 15704, Spain; Faculty of Medicine, University of Santiago de Compostela, Santiago de Compostela, 15704, Spain; Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS), Instituto de Salud Carlos III, Madrid, Spain.
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6
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Sharma T, Sirpu Natesh N, Pothuraju R, Batra SK, Rachagani S. Gut microbiota: a non-target victim of pesticide-induced toxicity. Gut Microbes 2023; 15:2187578. [PMID: 36919486 PMCID: PMC10026936 DOI: 10.1080/19490976.2023.2187578] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
The human gut microbiota can be potentially disrupted due to exposure of various environmental contaminants, including pesticides. These contaminants enter into non-target species in multiple ways and cause potential health risks. The gut microbiota-derived metabolites have a significant role in maintaining the host's health by regulating metabolic homeostasis. An imbalance in this homeostasis can result in the development of various diseases and their pathogenesis. Pesticides have hazardous effects on the host's gut microbiota, which is evident in a few recent studies. Therefore, there is an urgent need to explore the effect of pesticide on gut microbiota-mediated metabolic changes in the host, which may provide a better understanding of pesticide-induced toxicity. The present review summarizes the pesticide-induced effects on gut microbiota, which in turn, induces changes in the release of their secondary metabolites that could lead to various host health effects.
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Affiliation(s)
- Tusha Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Nagabhishek Sirpu Natesh
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Veterinary Medicine & Surgery, University of Missouri, Columbia, MO, USA
- Roy Blunt NextGen Precision Health Institute, University of Missouri, Columbia, MO, USA
| | - Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
- Fred & Pamela Buffett Cancer Center, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - Satyanarayana Rachagani
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Veterinary Medicine & Surgery, University of Missouri, Columbia, MO, USA
- Roy Blunt NextGen Precision Health Institute, University of Missouri, Columbia, MO, USA
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Dong Y, Yin S, Zhang J, Guo F, Aamir M, Liu S, Liu K, Liu W. Exposure patterns, chemical structural signatures, and health risks of pesticides in breast milk: A multicenter study in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 830:154617. [PMID: 35307419 DOI: 10.1016/j.scitotenv.2022.154617] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/12/2022] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
China is the world's largest pesticide user. These chemicals are bioaccumulative in the human body, and eventually could be transferred from the mother to the fetus/infant via placental and breastfeeding transport, which might pose developmental deficiency risks. In this study, human biomonitoring of legacy pesticides was conducted in three Chinese cities using 60 breast milk samples. The patterns, chemical structural signatures, and the estimated daily intake of pesticides were assessed. The median concentration of HCB (57.8 ng g-1 lw, Interquartile range: 28.5-76.9 ng g-1 lw) was the highest among all pesticides, whereas the HCHs, DDXs, TCVP, and heptachlor were also detected. A significantly different pattern of pesticides was found among three sampling cities: the Mianyang cases were mostly DDXs oriented while the Wuhan and Hangzhou cases were under HCB, HCHs, TCVP, and heptachlor influences. Maternal age and pre-pregnancy BMI were found to be the influencing factors for the pesticides in the breast milk, and dietary preferences were an important factor in the exposure scenario. Chemical structural signatures indicated that for HCHs and DDXs the exposure was mostly historical, while the lindane and dicofol exposure may exist among the volunteering mothers. The EF for chiral pesticides did not deviate significantly from the racemic value. The risk from breastfeeding was negligible according to the Chinese and UN standard, while some cases from Hangzhou and Wuhan exceeded the Canadian restrictions. Thus, the adverse health effects of chemical exposure by dietary intake for infants need to be closely monitored in future studies.
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Affiliation(s)
- Yihan Dong
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Shanshan Yin
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China.
| | - Jianyun Zhang
- Department of Nutrition and Toxicology, School of Public Health, Faculty of Medicine, Hangzhou Normal University, Hangzhou 311121, China
| | - Fangjie Guo
- Quality and Safety Engineering Institute of Food and Drug, School of Management Engineering and Electronic Commerce, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang, China
| | - Muhammad Aamir
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Shuren Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institution of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Kecheng Liu
- School of Public Health, Hangzhou Medical College, Hangzhou 310007, China
| | - Weiping Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institution of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
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Ramezani S, Mahdavi V, Gordan H, Rezadoost H, Oliver Conti G, Mousavi Khaneghah A. Determination of multi-class pesticides residues of cow and human milk samples from Iran using UHPLC-MS/MS and GC-ECD: A probabilistic health risk assessment. ENVIRONMENTAL RESEARCH 2022; 208:112730. [PMID: 35032542 DOI: 10.1016/j.envres.2022.112730] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 12/23/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Raw, pasteurized, powdered cow milk and human milk samples from Tehran, Iran were investigated for the residual of fifty pesticides with the aid of gas chromatography coupled with electron capture detector (GC-ECD) and mass detector for confirmation; and ultra-high performance liquid chromatography-tandem mass spectroscopy (UHPLC-MS/MS). No pesticide residue was determined in more than 91% of examined samples. However, the dimethoate residue was detected in 3 raw milk samples in levels higher than EU recommended MRL. While in 3 human milk samples, organochlorine pesticides residue, p,p'-DDT, and p,p'-DDD was recognized below MRLs, only in 1 human sample residue of p,p'-DDE was more than CODEX recommended MRL. HI in adults and children were 0.72 and 3.55, respectively. However, the health risk assessment based on HI demonstrated that adult consumers are not at considerable risk. The HI, higher than 1 in children, confirms the risks raised due to ingestion of organochlorine (OCP) and organophosphorus (OPP) pesticides via milk consumption. In addition, no carcinogenic risk to milk consumers was calculated. Therefore, implementation of good farming practices on farms, improving the knowledge and consciousness of pesticide users, use other safe methods for pest control such as biotechnology-based, and use a rational program for application of pesticides, continuous monitoring of pesticides in crops, and strict government regulations on pesticide residues in food are recommended.
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Affiliation(s)
- Sara Ramezani
- Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research, Education and Extension Organization (AREEO), P.O. Box 1475744741, Tehran, Iran; Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Vahideh Mahdavi
- Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research, Education and Extension Organization (AREEO), P.O. Box 1475744741, Tehran, Iran.
| | - Hasti Gordan
- Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research, Education and Extension Organization (AREEO), P.O. Box 1475744741, Tehran, Iran
| | - Hasan Rezadoost
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Gea Oliver Conti
- Environmental and Food Hygiene Laboratory, Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia," University of Catania, Catania, Italy
| | - Amin Mousavi Khaneghah
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas (UNICAMP), Campinas , Sao Paulo, Brazil.
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Hood RB, Liang D, Chiu YH, Sandoval-Insausti H, Chavarro JE, Jones D, Hauser R, Gaskins AJ. Pesticide residue intake from fruits and vegetables and alterations in the serum metabolome of women undergoing infertility treatment. ENVIRONMENT INTERNATIONAL 2022; 160:107061. [PMID: 34959198 PMCID: PMC8821142 DOI: 10.1016/j.envint.2021.107061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Pesticide exposure is linked to a myriad of negative health effects; however, the mechanisms underlying these associations are less clear. We utilized metabolomics to describe the alterations in the serum metabolome associated with high and low pesticide residue intake from fruits and vegetables (FVs), the most common route of exposure in humans. METHODS This analysis included 171 women undergoing in vitro fertilization who completed a validated food frequency questionnaire and provided a serum sample during controlled ovarian stimulation (2007-2015). FVs were categorized as high or low-to-moderate pesticide residue using a validated method based on pesticide surveillance data from the USDA. We conducted untargeted metabolic profiling using liquid chromatography with high-resolution mass spectrometry and two chromatography columns. We used multivariable generalized linear models to identified metabolic features (p < 0.005) associated with high and low-to-moderate pesticide residue FV intake, followed by enriched pathway analysis. RESULTS We identified 50 and 109 significant features associated with high pesticide residue FV intake in the C18 negative and HILIC positive columns, respectively. Additionally, we identified 90 and 62 significant features associated with low-to-moderate pesticide residue FV intake in the two columns, respectively. Four metabolomic pathways were associated with intake of high pesticide residue FVs including those involved in energy, vitamin, and enzyme metabolism. 12 pathways were associated with intake of low-to-moderate pesticide residue FVs including cellular receptor, energy, intercellular signaling, lipid, vitamin, and xenobiotic metabolism. One energy pathway was associated with both high and low-to-moderate pesticide residue FVs. CONCLUSIONS We identified limited overlap in the pathways associated with intake of high and low-to-moderate pesticide residue FVs, which supports findings of disparate health effects associated with these two exposures. The identified pathways suggest there is a balance between the dietary antioxidant intake associated with FVs intake and heightened oxidative stress as a result of dietary pesticide exposure.
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Affiliation(s)
- Robert B Hood
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, USA.
| | - Donghai Liang
- Gangarosa Department of Environmental Health, Emory University Rollins School of Public Health, Atlanta, GA, USA
| | - Yu-Han Chiu
- Department of Epidemiology, Harvard T H Chan School of Public Health, Boston, MA, USA
| | | | - Jorge E Chavarro
- Department of Epidemiology, Harvard T H Chan School of Public Health, Boston, MA, USA; Department of Nutrition, Harvard T H Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Dean Jones
- Division of Pulmonary, Allergy, & Critical Care Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Russ Hauser
- Department of Epidemiology, Harvard T H Chan School of Public Health, Boston, MA, USA; Department of Environmental Health, Harvard T H Chan School of Public Health, Boston, MA, USA
| | - Audrey J Gaskins
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, USA
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10
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Schanzer S, Kröner E, Wibbelt G, Koch M, Kiefer A, Bracher F, Müller C. Miniaturized multiresidue method for the analysis of pesticides and persistent organic pollutants in non-target wildlife animal liver tissues using GC-MS/MS. CHEMOSPHERE 2021; 279:130434. [PMID: 33873063 DOI: 10.1016/j.chemosphere.2021.130434] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 05/15/2023]
Abstract
In order to gain a better insight into pesticide and pollutant exposure of small (non-target) wildlife animals, a QuEChERS sample preparation method was first developed for 5 g liver tissues (e.g. hedgehog samples) and then downscaled for the analysis of 100 mg liver tissues (e.g. bat samples). The optimized (micro) QuEChERS methods used 1% acetic acid in acetonitrile as organic solvent for liquid-liquid extraction (LLE) and salting out was performed with anhydrous magnesium sulfate and sodium acetate (4:1). After a freezing-out step, sample clean-up was carried out with anhydrous magnesium sulfate, PSA, C18, and GCB (150:25:20:5). Overall, 209 pesticides and persistent organic pollutants (POPs) can be analysed within each sample with gas chromatography coupled to tandem mass spectrometry (GC-MS/MS). Both methods were validated with representative analytes according to the European Commission guideline SANTE/12682/2019. Limits of quantification were between 1 and 20 μg kg-1, and the methods proved to be linear up to 400 μg kg-1. Additionally, the analytes delivered satisfactory results regarding recovery and precision. As proof of concept, samples of six hedgehog livers were analysed with both methods to prove the accuracy of the micro QuEChERS method. Additionally, six livers of different bat species were analysed with the downscaled method. The newly developed micro QuEChERS method for multiresidue analysis requires only minute amounts of biomaterial and represents a sophisticated novel technique for determining the exposure of small wildlife animals to different contaminants.
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Affiliation(s)
- Sonja Schanzer
- Department of Pharmacy - Center for Drug Research, Ludwig-Maximilians University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Egbert Kröner
- Wildvogel Pflegestation Kirchwald EV, Auf der Bachhell 1, 56729, Kirchwald, Germany
| | - Gudrun Wibbelt
- Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Strasse 17, 10315, Berlin, Germany
| | - Martin Koch
- Department of Biogeography, Trier University, Universitätsring 15, 54296, Trier, Germany
| | - Andreas Kiefer
- Department of Biogeography, Trier University, Universitätsring 15, 54296, Trier, Germany
| | - Franz Bracher
- Department of Pharmacy - Center for Drug Research, Ludwig-Maximilians University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Christoph Müller
- Department of Pharmacy - Center for Drug Research, Ludwig-Maximilians University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany.
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11
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Pedersen TL, Smilowitz JT, Winter CK, Emami S, Schmidt RJ, Bennett DH, Hertz-Picciotto I, Taha AY. Quantification of Nonpersistent Pesticides in Small Volumes of Human Breast Milk with Ultrahigh Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6676-6689. [PMID: 34098718 PMCID: PMC8422964 DOI: 10.1021/acs.jafc.0c05950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Existing methods for the analysis of pesticides in human breast milk involve multiple extraction steps requiring large sample and solvent volumes, which can be a major obstacle in large epidemiologic studies. Here, we developed a simple, low-volume method for extracting organophosphates, pyrethroids, carbamates, atrazine, and imidacloprid from 100 to 200 μL of human breast milk. Multiple extraction protocols were tested including microwave-assisted acid/base digestion and double-solvent extraction with 2 or 20 mL of 2:1 (v/v) dichloromethane/hexane, with or without subsequent solid-phase extraction (SPE) cleanup. Samples were analyzed by liquid chromatography tandem mass spectrometry. Analyte recoveries and reproducibility were highest when 100-200 μL of milk were extracted with 2 mL of dichloromethane/hexane without subsequent SPE steps. Analysis of 79 breast milk samples using this method revealed the presence of carbamates, organophosphates, pyrethroids, and imidacloprid at detection frequencies of 79-96, 53-90, 1-7, and 61%, respectively. This study demonstrates the feasibility of a simple low-volume extraction method for measuring pesticides in human breast milk.
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Affiliation(s)
- Theresa L Pedersen
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California-Davis, Davis 95616, California, United States
| | - Jennifer T Smilowitz
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California-Davis, Davis 95616, California, United States
- Foods for Health Institute, University of California-Davis, Davis 95616, California, United States
| | - Carl K Winter
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California-Davis, Davis 95616, California, United States
| | - Shiva Emami
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California-Davis, Davis 95616, California, United States
| | - Rebecca J Schmidt
- Department of Public Health Sciences, School of Medicine, University of California-Davis, Davis 95616, California, United States
- University of California-Davis, MIND (Medical Investigations of Neurodevelopmental Disorders) Institute, Sacramento 95817, California, United States
| | - Deborah H Bennett
- Department of Public Health Sciences, School of Medicine, University of California-Davis, Davis 95616, California, United States
| | - Irva Hertz-Picciotto
- Department of Public Health Sciences, School of Medicine, University of California-Davis, Davis 95616, California, United States
- University of California-Davis, MIND (Medical Investigations of Neurodevelopmental Disorders) Institute, Sacramento 95817, California, United States
| | - Ameer Y Taha
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California-Davis, Davis 95616, California, United States
- NIH-West Coast Metabolomics Center, Genome Center, University of California-Davis, Davis 95616, California, United States
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12
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Daniel AI, Shama S, Ismail S, Bourdon C, Kiss A, Mwangome M, Bandsma RHJ, O'Connor DL. Maternal BMI is positively associated with human milk fat: a systematic review and meta-regression analysis. Am J Clin Nutr 2021; 113:1009-1022. [PMID: 33675341 PMCID: PMC8023843 DOI: 10.1093/ajcn/nqaa410] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 12/08/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Lack of robust estimates of human-milk nutrient composition and influential maternal factors, such as body composition, are barriers to informing nutrition policies and programs. OBJECTIVE The objective was to understand the relation between maternal BMI and human-milk energy, fat, and/or total protein. METHODS Four electronic databases (MEDLINE, Embase, CINAHL, and Web of Science) were searched. Outcomes assessed were human-milk energy (kcal/L), fat (g/L), and total protein (g/L) from mothers 1 to 6 mo postpartum. Studies with data on maternal BMI or weight and height that quantified human-milk energy, fat, or protein between 1 and 6 mo postpartum were eligible. Random-effects meta-regression weighted by the inverse of the study-level SE was completed for each of the 3 outcomes. The certainty of evidence for each outcome was assessed using the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) approach. RESULTS A total of 11,373 titles and abstracts were identified, and after full-text screening, 69 articles of 66 studies were included. Meta-regression results showed a positive association between maternal BMI and human-milk fat (β: 0.56 g/L; 95% CI: 0.034, 1.1; P = 0.04; I2 = 93.7%, n = 63 datapoints). There was no significant association between maternal BMI and human-milk energy (β: 3.9 kcal/L; 95% CI: -1.6, 9.5; P = 0.16, I2 = 93.3%, n = 40 datapoints) or total protein (β: 0.13 g/L; 95% CI: -0.16, 0.41; P = 0.37, I2 = 99.1%, n = 40 datapoints). The certainty of evidence for human-milk energy was low and the certainty of evidence for fat and total protein was very low. CONCLUSIONS Meta-regression analysis of available literature suggested an association between maternal BMI and human-milk fat between 1 and 6 mo postpartum. Future studies are needed to confirm the relation between maternal BMI; variation in human-milk energy, fat, and protein content; and the implications for child growth and development. This review is registered with International Prospective Register of Systematic Reviews (PROSPERO 2018 CRD42018098808) at https://www.crd.york.ac.uk/prospero/.
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Affiliation(s)
- Allison I Daniel
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Sara Shama
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Samantha Ismail
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Celine Bourdon
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Alex Kiss
- Department of Research Design and Biostatistics, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Martha Mwangome
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Program, Kilifi, Kenya
| | - Robert H J Bandsma
- Centre for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Biomedical Sciences, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Deborah L O'Connor
- Translational Medicine Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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13
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Perrella S, Gridneva Z, Lai CT, Stinson L, George A, Bilston-John S, Geddes D. Human milk composition promotes optimal infant growth, development and health. Semin Perinatol 2021; 45:151380. [PMID: 33431112 DOI: 10.1016/j.semperi.2020.151380] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Human milk is a living dynamic fluid that promotes optimal nutrition and development of the infant and impacts health across the lifespan. This review reports on the diverse range of nutrients, immune protection factors, hormones, microbes and metabolites in human milk and their impacts on infant nutrition and health. While many of these components are stable across lactation and similar between women, some vary over time, and in response to maternal and infant health status, maternal diet and geographic location. Human milk may be considered as personalized nutrition, with many components working synergistically to stimulate and support the infant's immature immune system, while enhancing appropriate development, growth and body composition.
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Affiliation(s)
- Sharon Perrella
- School of Molecular Science, The University of Western Australia, M310, 35 Stirling Highway, Crawley Western Australia 6009, Australia.
| | - Zoya Gridneva
- School of Molecular Science, The University of Western Australia, M310, 35 Stirling Highway, Crawley Western Australia 6009, Australia
| | - Ching Tat Lai
- School of Molecular Science, The University of Western Australia, M310, 35 Stirling Highway, Crawley Western Australia 6009, Australia
| | - Lisa Stinson
- School of Molecular Science, The University of Western Australia, M310, 35 Stirling Highway, Crawley Western Australia 6009, Australia
| | - Alexandra George
- School of Molecular Science, The University of Western Australia, M310, 35 Stirling Highway, Crawley Western Australia 6009, Australia
| | - Sabrina Bilston-John
- School of Molecular Science, The University of Western Australia, M310, 35 Stirling Highway, Crawley Western Australia 6009, Australia
| | - Donna Geddes
- School of Molecular Science, The University of Western Australia, M310, 35 Stirling Highway, Crawley Western Australia 6009, Australia
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14
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Covaciu FD, Floare-Avram V, Magdas DA, David AP, Marincas O. Distribution and Fate of Persistent Organochlorine Pesticides on the Soil-Forage-Milk Chain in Three Transylvanian Farms. ANAL LETT 2021. [DOI: 10.1080/00032719.2020.1749650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Florina D. Covaciu
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
| | - Veronica Floare-Avram
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
| | - Dana A. Magdas
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
- Cluster Agro-Food-Ind Napoca, Cluj-Napoca, Romania
| | - Adriana P. David
- Department of Technical and Soil Sciences, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
- SC AgroCosm Fan SA, Sannicoara, Cluj-Napoca, Romania
| | - Olivian Marincas
- Department of Mass Spectrometry, Chromatography and Applied Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
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15
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Mehta RV, Sreenivasa MA, Mathew M, Girard AW, Taneja S, Ranjan S, Ramakrishnan U, Martorell R, Ryan PB, Young MF. A mixed-methods study of pesticide exposures in Breastmilk and Community & Lactating Women's perspectives from Haryana, India. BMC Public Health 2020; 20:1877. [PMID: 33287778 PMCID: PMC7720549 DOI: 10.1186/s12889-020-09966-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 11/24/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Population growth which has resulted in a need for increased crop yields to sustain food security, in addition to the effects of climate change, have led to the widespread use of chemical pesticides. The indiscriminate use of pesticides has in turn led to contamination of the environment, food commodities and bioaccumulation in human tissues, particularly in agrarian regions of India including the northern state of Haryana. METHODS We conducted a pilot screening study to investigate the presence of organochlorine, organophosphate, and pyrethroid pesticides in breastmilk samples (n = 75) from Haryana, India. Pesticide analyses were conducted using gas chromatography mass spectrometry (GC-MS) for OC and OP pesticides and GC-electron capture detector for pyrethroids. The study was complemented by a qualitative evaluation of maternal and community perceptions, knowledge, attitudes and practices associated with pesticide use and risk of exposure (n = 30 in-depth interviews; n = 9 focus group discussions). RESULTS Analysis of breastmilk showed the presence of p,p'-dichlorodiphenyltrichloroethane (DDT) and p,p'-dichlorodiphenyldichloroethylene (DDE) in 4% (range: CONCLUSIONS In our small sample, breastmilk pesticide concentrations were low and did not pose a risk to infants. Based on the persistent nature of many organic pollutants and reported widespread use, we recommend more comprehensive and longitudinal investigation of upstream pesticide contamination in the food supply and exposures among mothers and children. TRIAL REGISTRATION CTRI/2017/01/007636 , Date Registered: 06/01/2017. CTRI website: http://ctri.nic.in/Clinicaltrials/pdf_generate.php?trialid=17249&EncHid=&modid=&compid=%27,%2717249det%27.
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Affiliation(s)
- Rukshan V. Mehta
- Doctoral Program in Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA USA
- Rollins School of Public Health, Emory University, Claudia Nance Rollins Building, 5th Floor, 1518 Clifton Road, Atlanta, GA 30329 USA
| | - M. A. Sreenivasa
- Council for Scientific and Industrial Research – Central Food Technological Research Institute, Mysuru, India
| | - Mathen Mathew
- Council for Scientific and Industrial Research – Central Food Technological Research Institute, Mysuru, India
| | - Amy Webb Girard
- Doctoral Program in Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA USA
- The Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA USA
| | - Sunita Taneja
- Society for Applied Studies, Centre for Health Research and Development, New Delhi, India
| | - Samriddhi Ranjan
- Society for Applied Studies, Centre for Health Research and Development, New Delhi, India
| | - Usha Ramakrishnan
- Doctoral Program in Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA USA
- The Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA USA
| | - Reynaldo Martorell
- Doctoral Program in Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA USA
- The Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA USA
| | - P. Barry Ryan
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA USA
| | - Melissa F. Young
- Doctoral Program in Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA USA
- The Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA USA
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16
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Kuang L, Hou Y, Huang F, Guo A, Deng W, Sun H, Shen L, Lin H, Hong H. Pesticides in human milk collected from Jinhua, China: Levels, influencing factors and health risk assessment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 205:111331. [PMID: 32977287 DOI: 10.1016/j.ecoenv.2020.111331] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
In China, many studies have been carried out on pesticide residues in human milk, yet all of them are on organochlorine pesticides (OCPs) and mostly focused on large, economically developed cities. In this study, 27 pesticides including OCPs, pyrethroid pesticides (PYRs) and organophosphate pesticides (OPPs) in human milk were investigated in Jinhua, an inland and medium sized city in China. Method based on QuEChERS extraction and gas chromatography-mass spectrometer (GC-MS) determination was adopted to analyze the above pesticide residues. The influencing factors as well as the health risks were also evaluated. Results show that PYRs and OPPs in human milk samples were both undetectable. Regarding OCPs, the detection rate of hexachlorobenzene (HCB), β-hexachlorocyclohexane (β-HCH) and p,p'-dichlorodiphenyl-dichloroethylene (p,p'-DDE) were 83.6%, 36.4% and 58.2%, respectively, and their mean value were 29.4, 32.0 and 85.2 ng/g lipid, respectively. p,p'-DDE levels in human milk was significantly (p < 0.05) related to maternal age, but no association was detected between OCPs residues and other factors (living environment, dietary habit, living style, etc.), suggesting that OCPs in human milk in Jinhua were originated from nonspecific source. All estimated daily intake of pesticides (EDIpesticides) by infants were under the guideline suggested by Food and Agriculture Organization (FAO) and China Ministry of Health (CMH). Yet 9% of EDIsHCB and 16% of EDIsHCHs exceeded the guideline recommended by Health Canada. The associations between DDE residues and the delivery way as well as HCBs residues and the birth weight were seemly significant, yet the significance disappeared when consider age or gestational age as a cofounder, indicating that OCPs residue in mother's body in Jinhua has no obvious influence on fetus development and the delivery way.
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Affiliation(s)
- Lihong Kuang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Yizhong Hou
- Jinhua Center for Disease Control and Prevention, Jinhua, 321000, PR China
| | - Fangqu Huang
- Jinhua Center for Disease Control and Prevention, Jinhua, 321000, PR China
| | - Aidi Guo
- Environmental Monitoring Center of Hangzhou, Yuhang District, Hangzhou, 311100, PR China
| | - Wenjing Deng
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N.T., Hong Kong
| | - Hongjie Sun
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Huachang Hong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China.
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17
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Elmassry MM, Zayed A, Farag MA. Gut homeostasis and microbiota under attack: impact of the different types of food contaminants on gut health. Crit Rev Food Sci Nutr 2020; 62:738-763. [DOI: 10.1080/10408398.2020.1828263] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Moamen M. Elmassry
- Department of Biological Sciences, Texas Tech University, Lubbock, Texas, USA
| | - Ahmed Zayed
- Department of Pharmacognosy, College of Pharmacy, Tanta University, Tanta, Egypt
- Institute of Bioprocess Engineering, Technical University of Kaiserslautern, Kaiserslautern, Germany
| | - Mohamed A. Farag
- Department of Pharmacognosy, College of Pharmacy, Cairo University, Cairo, Egypt
- Department of Chemistry, School of Sciences & Engineering, The American University in Cairo, New Cairo, Egypt
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18
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Kuang L, Hou Y, Huang F, Hong H, Sun H, Deng W, Lin H. Pesticide residues in breast milk and the associated risk assessment: A review focused on China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 727:138412. [PMID: 32330708 DOI: 10.1016/j.scitotenv.2020.138412] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/11/2020] [Accepted: 04/01/2020] [Indexed: 06/11/2023]
Abstract
This review aims to provide an overview of studies on pesticide residues in breast milk in China and the related health risk to mother and infants. Results showed that the investigations of breast milk covered 22 provincial administrative regions of China. Beijing and some densely populated and economically developed areas have most publications. The study frequency was followed the order of DDTs>HCHs>HCB > ∑Drins,∑Chlordane. While the residue levels were ranked as DDTs, HCHs > ∑Drins>HCB > ∑Chlordane. The highest residue levels of DDTs and HCHs in breast milk were found in 1980s (~10,000 ng/g lipid), then experienced a sharp decrease in 1990s (~1000-2000 ng/g lipid). In 2000s and 2010s, DDTs, and HCHs residue still showed a decreasing trend. Spatially, people located in urban area, coastal areas and southern China tend to have higher pesticide residues as compared to rural area, inland area and northern China, respectively. Other factors such as dietary habit, living environment, the maternal age, the parity, body mass index, lactation period, menstruation characteristics as well as hormonal drug intake and infertility treatment will also affect the pesticide residues in breast milk of Chinese people. According to the estimated daily ingestion (EDI) of breast milk, the average health risk for infants were generally exceeded the acceptable level before 2006, while after that, most EDI values were within the standard. Body burden of pesticides in mother can also be evaluated by using the residue data in breast milk, but no relevant guidelines were available. Other knowledge gap included 1) for some provinces with large consumption of pesticides or located in remote and plateau areas, there are few/no studies available; 2) current study on pesticide residues in breast milk in China were only focused on organochlorine pesticides, research on current used pesticides (such as pyrethroids, organophosphorus, carbamate) were necessary in the future.
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Affiliation(s)
- Lihong Kuang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China
| | - Yizhong Hou
- Jinhua Center for Disease Control and Prevention, Jinhua 321000, PR China
| | - Fangqu Huang
- Jinhua Center for Disease Control and Prevention, Jinhua 321000, PR China
| | - Huachang Hong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China.
| | - Hongjie Sun
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China
| | - Wenjing Deng
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N.T., Hong Kong
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China
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19
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Souza RC, Portella RB, Almeida PVNB, Pinto CO, Gubert P, Santos da Silva JD, Nakamura TC, do Rego EL. Human milk contamination by nine organochlorine pesticide residues (OCPs). JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2020; 55:530-538. [PMID: 32525731 DOI: 10.1080/03601234.2020.1729630] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Organochlorine pesticides (OCPs) are widely used around the world as insecticides, herbicides, fungicides, nematicides, and rodenticides. Despite banned in Brazil, the usage remains occurring in many countries. The persistence and extreme mobility of OCPs contribute to the contamination of the environment and the human body. The OCPs bioaccumulation in adipose tissue triggers the excretion into human milk during breastfeeding. Hence, the present study determined eighteen OCPs residues in the breast milk of mothers from the Western Region of Bahia State, Brazil. Nine different residue species were found, including beta-Hexachlorocyclohexane (9.24 ± 0.00 ng g-1 fat), delta- Hexachlorocyclohexane (22.15 ± 10.48 ng g-1 fat), Heptachlor (58.08 ± 74.13 ng g-1 fat), Aldrin (142.65 ± 50.65 ng g-1 fat), Dieldrin (774.62 ± 472.68 ng g-1 fat), Endosulfan I (408.44 ± 245.51 ng g-1 fat), Dichloro-diphenyl-dichloro-ethylene (29.17 ± 22.42 ng g-1 fat), Dichloro-diphenyl-trichloro-ethane (28.87 ± 0.00 ng g-1 fat) and Methoxychlor (1699.67 ± 797.43 ng g-1 fat). The Methoxychlor presence in all samples may reveal a recent exposure, while Dieldrin and Endosulfan I analyses can point to distant past exposure.
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Affiliation(s)
- Raiane Costa Souza
- Department of Environmental Sciences, Federal University of Western Bahia, Bahia, Brazil
| | | | | | - Caroline Oliveira Pinto
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
| | - Priscila Gubert
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
- Department of Biochemistry, Federal University of Pernambuco, Recife, Brazil
| | | | | | - Enoc Lima do Rego
- Chemistry Institute - IQ, University of Brasília - UnB, Brasília, Brazil
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20
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Bardanzellu F, Peila C, Fanos V, Coscia A. Clinical insights gained through metabolomic analysis of human breast milk. Expert Rev Proteomics 2019; 16:909-932. [PMID: 31825672 DOI: 10.1080/14789450.2019.1703679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Introduction: Among the OMICS technologies, that have emerged in recent years, metabolomics has allowed relevant step forwards in clinical research. Several improvements in disease diagnosis and clinical management have been permitted, even in neonatology. Among potentially evaluable biofluids, breast milk (BM) results are highly interesting, representing a fluid of conjunction between mothers newborns, describing their interaction.Areas covered: in this review, updating a previous review article, we discuss research articles and reviews on BM metabolomics and found in MEDLINE using metabolomics, breast milk, neonatal nutrition, breastfeeding, human milk composition, and preterm neonates as keywords.Expert opinion: Our research group has a profound interest in metabolomics research. In 2012, we published the first metabolomic analysis on BM samples, reporting interesting data on its composition and relevant differences with formula milk (FM), useful to improve FM composition. As confirmed by successive studies, such technology can detect the specific BM composition and its dependence on several variables, including lactation stage, gestational age, maternal or environmental conditions. Moreover, since BM contaminants or drug levels can be detected, metabolomics also results useful to determine BM safety. These are only a few practical applications of BM analysis, which will be reviewed in this paper.
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Affiliation(s)
- Flaminia Bardanzellu
- Neonatal Intensive Care Unit, Department of Surgical Sciences, AOU University of Cagliari, Monserrato, Italy
| | - Chiara Peila
- Neonatology Unit, Department of Public Health and Pediatrics, Università degli Studi di Torino, Turin, Italy
| | - Vassilios Fanos
- Neonatal Intensive Care Unit, Department of Surgical Sciences, AOU University of Cagliari, Monserrato, Italy
| | - Alessandra Coscia
- Neonatology Unit, Department of Public Health and Pediatrics, Università degli Studi di Torino, Turin, Italy
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Recent developments and applications of QuEChERS based techniques on food samples during pesticide analysis. J Food Compost Anal 2019. [DOI: 10.1016/j.jfca.2019.103314] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Diagnostic detection systems and QuEChERS methods for multiclass pesticide analyses in different types of fruits: An overview from the last decade. Food Chem 2019; 298:124958. [DOI: 10.1016/j.foodchem.2019.124958] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 05/27/2019] [Accepted: 06/06/2019] [Indexed: 01/25/2023]
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Yuan X, Pan Z, Jin C, Ni Y, Fu Z, Jin Y. Gut microbiota: An underestimated and unintended recipient for pesticide-induced toxicity. CHEMOSPHERE 2019; 227:425-434. [PMID: 31003127 DOI: 10.1016/j.chemosphere.2019.04.088] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/11/2019] [Accepted: 04/12/2019] [Indexed: 06/09/2023]
Abstract
Pesticide pollution residues have become increasingly common health hazards over the last several decades because of the wide use of pesticides. The gastrointestinal tract is the first physical and biological barrier to contaminated food and is therefore the first exposure site. Interestingly, a number of studies have shown that the gut microbiota plays a key role in the toxicity of pesticides and has a profound relationship with environmental animal and human health. For instance, intake of the pesticide of chlorpyrifos can promote obesity and insulin resistance through influencing gut and gut microbiota of mice. In this review, we discussed the possible effects of different kinds of widely used pesticides on the gut microbiota in different experimental models and analyzed their possible subsequent effects on the health of the host. More and more studies indicated that the gut microbiota of animals played a very important role in pesticides-induced toxicity, suggesting that gut micriobita was also the unintended recipient of pesticides. We hope that more attention can focus on the relationship between pesticides, gut microbiota and environmental health risk assessment in near future.
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Affiliation(s)
- Xianling Yuan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Zihong Pan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Cuiyuan Jin
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Yinhua Ni
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Zhengwei Fu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Yuanxiang Jin
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, PR China.
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Pesticide Use Practices in Root, Tuber, and Banana Crops by Smallholder Farmers in Rwanda and Burundi. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16030400. [PMID: 30708958 PMCID: PMC6388262 DOI: 10.3390/ijerph16030400] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 12/19/2018] [Accepted: 12/22/2018] [Indexed: 12/16/2022]
Abstract
Misuse and poor handling of chemical pesticides in agriculture is hazardous to the health of farmers, consumers, and to the environment. We studied the pest and disease management practices and the type of pesticides used in four root, tuber, and banana (RTB) crops in Rwanda and Burundi through in-depth interviews with a total of 811 smallholder farmers. No chemical pesticides were used in banana in either Rwanda and Burundi, whereas the use of insecticides and fungicides in potato was quite frequent. Nearly all insecticides and about one third of the fungicides used are moderately hazardous. Personal protective equipment was used by less than a half of the interviewed farmers in both countries. Reported cases of death due to self- or accidental-poisoning among humans and domestic animals in the previous 12 months were substantial in both countries. Training of farmers and agrochemical retailers in safe use of pesticide and handling and, use of integrated pest management approaches to reduce pest and disease damage is recommended.
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LaKind JS, Lehmann GM, Davis MH, Hines EP, Marchitti SA, Alcala C, Lorber M. Infant Dietary Exposures to Environmental Chemicals and Infant/Child Health: A Critical Assessment of the Literature. ENVIRONMENTAL HEALTH PERSPECTIVES 2018; 126:96002. [PMID: 30256157 PMCID: PMC6375563 DOI: 10.1289/ehp1954] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 08/02/2018] [Accepted: 08/13/2018] [Indexed: 05/24/2023]
Abstract
BACKGROUND The benefits of breastfeeding to the infant and mother have been well documented. It is also well known that breast milk contains environmental chemicals, and numerous epidemiological studies have explored relationships between background levels of chemicals in breast milk and health outcomes in infants and children. OBJECTIVES In this paper, we examine epidemiological literature to address the following question: Are infant exposures to background levels of environmental chemicals in breast milk and formula associated with adverse health effects? We critically review this literature a) to explore whether exposure-outcome associations are observed across studies, and b) to assess the literature quality. METHODS We reviewed literature identified from electronic literature searches. We explored whether exposure-outcome associations are observed across studies by assessing the quality (using a modified version of a previously published quality assessment tool), consistency, and strengths and weaknesses in the literature. The epidemiological literature included cohorts from several countries and examined infants/children either once or multiple times over weeks to years. Health outcomes included four broad categories: growth and maturation, morbidity, biomarkers, and neurodevelopment. RESULTS The available literature does not provide conclusive evidence of consistent or clinically relevant health consequences to infants exposed to environmental chemicals in breast milk at background levels. CONCLUSIONS It is clear that more research would better inform our understanding of the potential for health impacts from infant dietary exposures to environmental chemicals. A critical data gap is a lack of research on environmental chemicals in formula and infant/child health outcomes. https://doi.org/10.1289/EHP1954.
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Affiliation(s)
- Judy S LaKind
- 1 LaKind Associates, LLC, Catonsville, Maryland, USA
- 2 Department of Epidemiology and Public Health, University of Maryland School of Medicine , Baltimore, Maryland, USA
| | - Geniece M Lehmann
- 3 Office of Research and Development (ORD), U.S. Environmental Protection Agency (EPA), Research Triangle Park , North Carolina, USA
| | - Matthew H Davis
- 4 Office of Children's Health Protection, U.S. EPA, Washington, District of Columbia, USA
| | - Erin P Hines
- 3 Office of Research and Development (ORD), U.S. Environmental Protection Agency (EPA), Research Triangle Park , North Carolina, USA
| | - Satori A Marchitti
- 5 Oak Ridge Institute for Science and Education (ORISE), ORD, U.S. EPA, Athens, Georgia, USA
| | - Cecilia Alcala
- 6 Association of Schools and Programs of Public Health (ASPPH), ORD, U.S. EPA, Washington, District of Columbia, USA
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Yildizdas HY, Ozlu F, Efeoglu P, Daglioglu N, Satar M. Non-persistent pesticides in breast milk in an agricultural area in Turkey. J Matern Fetal Neonatal Med 2018; 32:2387-2392. [PMID: 29463139 DOI: 10.1080/14767058.2018.1438395] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Organophosphates, pythyreoids, carbamate pesticides and fungicides are heavily used in agriculture. They may have dangerous effects on newborn health especially on immune system and growth via prenatal transmission by placenta or postnatal transmission by breastfeeding. METHODS In 2015, 144 non-persistent pesticides in 64 milk samples of 32 mothers were studied by OuEChERS method in liquid chromatography/tandem mass spectrometer in neonatal Intensive Care Unit in Adana, a city in Cukurova region which is an important agricultural area in Turkey. RESULTS Pesticides were detected in milk samples of 11 mothers (34.3%) and 21 (32.8%) of milk samples. In five mothers, fungicides (in 5/10 samples propicanozole-PP, in 4/10 samples bromucanozole-BM), in five mothers, organophosphates (in 10/10 samples primyphosphomethyl-PPM), in one mother, both organophosphates and fungicide (in 1/2 samples PPM and in 1/2 samples buprimate) were detected. However, the estimated daily intakes (EDI) were less than acceptable daily intakes (ADI) for PPM, PP and BM, respectively. CONCLUSIONS Although pesticides levels in human milk did not exceed the ADIs, we suggest monitoring pesticides in human breast milk especially for newborn health.
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Affiliation(s)
| | - Ferda Ozlu
- a Division of Neonatology, Department of Pediatrics , Cukurova University , Adana , Turkey
| | - Pinar Efeoglu
- b Department of Forensic Medicine , Cukurova University , Adana , Turkey
| | - Nebile Daglioglu
- b Department of Forensic Medicine , Cukurova University , Adana , Turkey
| | - Mehmet Satar
- b Department of Forensic Medicine , Cukurova University , Adana , Turkey
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Recent Advances and Developments in the QuEChERS Method. COMPREHENSIVE ANALYTICAL CHEMISTRY 2017. [DOI: 10.1016/bs.coac.2017.01.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Longitudinal study of pesticide residue levels in human milk from Western Australia during 12 months of lactation: Exposure assessment for infants. Sci Rep 2016; 6:38355. [PMID: 27924835 PMCID: PMC5141434 DOI: 10.1038/srep38355] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 11/03/2016] [Indexed: 11/09/2022] Open
Abstract
The presence of pesticides in human milk (HM) is of great concern due to the potential health effects for the breastfed infant. To determine the relationships between HM pesticides and infant growth and development, a longitudinal study was conducted. HM samples (n = 99) from 16 mothers were collected at 2, 5, 9 and 12 months of lactation. A validated QuEChERS method and Gas chromatography-tandem mass spectrometry (GC-MS/MS) were used for the analysis of 88 pesticides in HM. Only p,p’-DDE, p,p’-DDT and β-HCH were detected with a mean concentration (±SD) of 52.25 ± 49.88 ng/g fat, 27.67 ± 20.96 ng/g fat and 48.00 ± 22.46 ng/g fat respectively. The concentrations of the detected pesticides decreased significantly throughout the first year of lactation. No significant relationships between HM p,p’-DDE and infant growth outcomes: weight, length, head circumference and percentage fat mass were detected. The actual daily intake (ADI) of total DDTs in this cohort was 14–1000 times lower than the threshold reference and significantly lower than the estimated daily intake (EDI). Further, the ADI decreased significantly throughout the first 12 months of lactation.
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